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510(k) Data Aggregation

    K Number
    K251120
    Date Cleared
    2025-08-06

    (117 days)

    Product Code
    Regulation Number
    870.1130
    Reference & Predicate Devices
    Why did this record match?
    510k Summary Text (Full-text Search) :

    Automatic Digital Blood Pressure Monitor, Model BP Progress (BP3T01-1B)
    Regulation Number: 21 CFR 870.1130
    Automatic Digital Blood Pressure Monitor, Model BP Progress (BP3T01-1B)

    Regulation Number: 21 CFR Part 870.1130

    AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP AuthorizedThirdpartyExpeditedreview
    Intended Use

    The Upper Arm Automatic Digital Blood Pressure Monitor, Model BP Progress (BP3T01-1B) is a device intended to measure the systolic and diastolic blood pressure and pulse rate of an adult individual by using a non-invasive oscillometric technique in which an inflatable cuff is wrapped around the upper arm for a circumference range from 22 to 40cm. The device detects the appearance of irregular heartbeat during measurement and gives a warning signal with the reading once the irregular heartbeat is detected. The device can be used in connection with a smart phone via Bluetooth. The measurement data can be transferred to a smart phone running the Microlife Connected Health+ mobile software (App).

    Device Description

    The Upper Arm Automatic Digital Blood Pressure Monitor, Model BP Progress (BP3T01-1B) is designed to measure systolic and diastolic blood pressure, pulse rate of an individual with arm circumference sizes ranging from 22 to 40 cm by using a non-invasive technique in which one inflatable cuff is wrapped around the single upper arm. Our method to define systolic and diastolic pressure is similar to the auscultatory method but using a semiconductor sensor rather than a stethoscope and mercury manometer. The sensor converts tiny alterations in cuff pressure to electrical signals, by analyzing those signals to define the systolic and diastolic blood pressure and calculating pulse rate, which is a well - known technique in the market called the "oscillometric method". The device detects the appearance of irregular heartbeat during measurement, and the symbol " " is displayed after the measurement. In addition, the device can be used in connection with smart mobile devices running the Microlife Connected Health+ mobile software (App) via Bluetooth. The blood pressure monitor is a fully automatic digital blood pressure measuring device use by adults on the upper arm at home.

    AI/ML Overview

    The provided FDA 510(k) clearance letter and summary for the Microlife Upper Arm Automatic Digital Blood Pressure Monitor, Model BP Progress (BP3T01-1B), include information about its testing and equivalence to a predicate device. However, it does not contain explicit acceptance criteria thresholds (e.g., specific accuracy ranges for blood pressure measurements) or detailed results beyond stating that the device "met all relevant requirements" and "results were passing."

    Based on the provided text, here's an attempt to extract the requested information, with notable gaps where details are not explicitly stated.


    Acceptance Criteria and Study Details for Microlife Upper Arm Automatic Digital Blood Pressure Monitor, Model BP Progress (BP3T01-1B)

    1. Table of Acceptance Criteria and Reported Device Performance

    The document does not explicitly state numerical acceptance criteria for blood pressure accuracy (e.g., mean difference and standard deviation standards like those in ISO 81060-2). It only mentions that the device "met all relevant requirements" and "results were passing" according to the relevant standards.

    Feature/MetricAcceptance Criteria (from ISO 81060-2, assumed)Reported Device Performance
    Blood Pressure AccuracyClinical validation of accuracy for oscillometric blood pressure monitors per ANSI/AAMI/ISO 81060-2 (e.g., mean difference $\le \pm 5$ mmHg with a standard deviation $\le 8$ mmHg). Specific thresholds are not detailed in the provided text."Results were passing" according to ISO 81060-2 testing. The device was found to be "substantially equivalent" to the predicate device.
    Irregular Heartbeat DetectionDevice detects and displays warning for irregular heartbeat during measurement. Specific performance metrics (e.g., sensitivity, specificity) for IHD are not provided.Device "detects the appearance of irregular heartbeat during measurement and gives a warning signal with the reading once the irregular heartbeat is detected."
    Cuff Fit/RangeCompatible with arm circumference range of 22-40cm.Verified for arm circumference range of 22-40cm.
    Safety & Essential PerformanceCompliance with various IEC/AAMI/ISO standards for basic safety, essential performance, electromagnetic compatibility, risk management, and biological evaluation."Met all relevant requirements of the aforementioned tests." No safety hazards or violations reported.
    Software ValidationCompliance with FDA guidance for software contained in medical devices (moderate level of concern).Software validation "was conducted in accordance with a moderate level of concern designation."

    2. Sample Size Used for the Test Set and Data Provenance

    • Sample Size: The document does not specify the exact sample size for the clinical validation study conducted in accordance with ISO 81060-2.
    • Data Provenance: Not specified (e.g., country of origin, retrospective or prospective). Typically, such clinical validations are prospective, but this is not explicitly stated.

    3. Number of Experts Used to Establish the Ground Truth for the Test Set and Qualifications

    • The document does not provide details on the number or qualifications of experts used for establishing ground truth, as is typical for an oscillometric blood pressure monitor validation. For ISO 81060-2, readings are independently taken by multiple trained observers, but their specific qualifications (e.g., experience level) are not detailed here.

    4. Adjudication Method for the Test Set

    • The document does not explicitly state an adjudication method. For ISO 81060-2, the ground truth (reference blood pressure) is established by two or more trained observers using auscultation. Discrepancies between observers are typically handled by a predefined protocol (e.g., averaging, or a third observer if differences are significant), but these specifics are not mentioned in the provided text.

    5. If a Multi-Reader Multi-Case (MRMC) Comparative Effectiveness Study Was Done

    • No, an MRMC comparative effectiveness study was not done. This type of study (comparing human readers with and without AI assistance) is not relevant for a standalone blood pressure monitor. The device itself performs the measurement; it does not assist human readers in interpreting complex imagery or clinical data in the way an AI algorithm might.

    6. If a Standalone (Algorithm Only Without Human-in-the-Loop Performance) Was Done

    • Yes, a standalone performance assessment was effectively done. The clinical validation conducted according to ISO 81060-2 assesses the device's accuracy in measuring blood pressure independently, without human interpretation other than setting up the device and initiating the measurement. The device's measurement algorithm is evaluated directly against a reference standard.

    7. The Type of Ground Truth Used

    • Expert Consensus (Auscultation): For blood pressure monitor validation per ISO 81060-2, the ground truth for blood pressure measurements is established through simultaneous or closely timed readings by trained human observers using the auscultatory method (stethoscope and sphygmomanometer/mercury manometer), which is considered the clinical reference standard.

    8. The Sample Size for the Training Set

    • Not Applicable / Not Provided: The summary indicates that the subject device (BP3T01-1B) uses the "same oscillometric method" and "common blood pressure measurement technological architecture and algorithm" as the predicate device (BP3KV1-5K). It does not describe a new algorithm that required a specific training set. Blood pressure algorithms for oscillometric devices are typically developed based on physiological models and empirical data, rather than being "trained" in the machine learning sense with a discrete "training set" in the context described here. If iterative development was done, the size of data used for such development is not provided.

    9. How the Ground Truth for the Training Set Was Established

    • Not Applicable / Not Provided: As in point 8, the concept of a "training set" with established ground truth as it applies to machine learning models is not explicitly relevant or described for this blood pressure monitor's algorithm development in the provided documentation. The algorithm's fundamental principles are stated to be the same as the predicate device, implying established and verified methods rather than a newly trained model requiring specific ground truth for training.
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    Why did this record match?
    510k Summary Text (Full-text Search) :

    Monitor (KD-5923)

    • iHealth Clear Wireless Blood Pressure Monitor (BPM1)

    Regulation Number: 21 CFR 870.1130
    Pressure Measurement System

    3.0 Classification

    Product Code: DXN
    Regulation Number: 21 CFR 870.1130

    AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP AuthorizedThirdpartyExpeditedreview
    Intended Use

    Fully Automatic Electronic Blood Pressure Monitor is for use by medical professionals or at home and is a non-invasive blood pressure measurement system intended to measure the diastolic and systolic blood pressures and pulse rate of an adult individual by using a non-invasive technique in which an inflatable cuff is wrapped around the upper arm. The cuff circumference is limited to 15cm-48cm (approx. 5.9"-18.9").

    Device Description

    Fully Automatic Electronic Blood Pressure Monitor (BP-300C, BP-300CV, BP-300V, BPM1, BPX1, KD-338N, KD-553, KD-557BR, KD-558, KD-558BR, KD-595, KD-5031N, KD-5810, KD-5810B, KD-5811, KD-5811A, KD-5811V, KD-5815, KD-5920, KD-5920L, KD-5920TL, KD-5923, KN-550LT) is designed and manufactured according to IEC 80601-2-30.

    The operational principle is based on Oscillo-metric and silicon integrates pressure sensor technology. It can calculate the systolic and diastolic blood pressure and display the result. The measurements results can also be classified by the function of blood pressure classification indicator. If any irregular heartbeat is detected, it can be shown to the user.

    AI/ML Overview

    The provided document is a 510(k) clearance letter for various blood pressure monitors. It outlines the regulatory approval process and compares the new devices to a predicate device. However, it does not contain the detailed acceptance criteria and study results in the format typically used for AI/software devices.

    Specifically, this document describes validation against standards for medical electrical equipment (IEC 60601-1, IEC 60601-1-2, IEC 60601-1-11) and automated non-invasive sphygmomanometers (IEC 80601-2-30, ISO 81060-2). It focuses on the substantial equivalence of the physical blood pressure monitors and their underlying oscillometric and pressure sensor technology, rather than the performance of an AI algorithm based on a test set, ground truth, and expert interpretations.

    Therefore, many of the specific questions about AI/software device validation (e.g., sample size for the test set, data provenance, number of experts for ground truth, MRMC studies, standalone performance, training set details) cannot be answered from this document.

    However, I can extract information related to the performance of the blood pressure monitors themselves, based on the included standards.


    Acceptance Criteria and Device Performance (for Blood Pressure Monitor functionality, not AI):

    Since this is a blood pressure monitor, the primary performance criteria relate to its accuracy in measuring blood pressure and pulse rate, and compliance with relevant safety and performance standards for automated non-invasive sphygmomanometers.

    Acceptance CriteriaReported Device Performance
    Accuracy (ISO 81060-2): "Meeting criteria 1 and criteria 2 of ISO 81060-2"Stated as "verified by meeting criteria 1 and criteria 2 of ISO 81060-2". (Specific numerical values for mean difference and standard deviation are not provided in this summary but are implicitly met by passing the standard.)
    Pulse rate range40-180 times/min
    Pulse rate accuracyLess than 60: ±3bpm
    More than 60 (incl.): ±5%
    Systolic Range60-260 mmHg
    Diastolic Range40-199 mmHg
    Pressure AccuracyWithin ±3 mmHg
    Cuff pressure Range0-300 mmHg
    Over pressure Limit300 mmHg
    Compliance with:
    • IEC 60601-1:2005+AMD1: 2012+AMD2: 2020
    • IEC 60601-1-2:2014+AMD1: 2020
    • IEC 60601-1-11: 2015+AMD1: 2020
    • IEC 80601-2-30: 2018 | All listed standards were met, demonstrating basic safety, essential performance, EMC, and home healthcare environment compliance. |

    Unable to Answer from Document (Common for AI/Software Device Submissions, but not for this type of device):

    The following questions are not applicable or cannot be answered from this 510(k) summary because the device described is a physical blood pressure monitor, not an AI/software device that interprets medical images or other complex data requiring expert adjudication, training sets, or MRMC studies.

    • Sample size used for the test set and the data provenance:
      • Test Set Size: "A total of 231 patients (107 males and 124 females) were enrolled in the study." This is the clinical study population for blood pressure measurement accuracy.
      • Data Provenance: Not explicitly stated (e.g., country of origin). The study is described as a "clinical study," which implies prospective data collection for the purpose of the study.
    • Number of experts used to establish the ground truth for the test set and the qualifications of those experts (e.g. radiologist with 10 years of experience):
      • Not applicable. Ground truth for blood pressure measurement is established through a standard auscultation method (manual measurement by medical professionals using a stethoscope and sphygmomanometer), not by interpretation of images by experts.
    • Adjudication method (e.g. 2+1, 3+1, none) for the test set:
      • Not applicable. Ground truth is direct measurement by a reference method.
    • If a multi reader multi case (MRMC) comparative effectiveness study was done, If so, what was the effect size of how much human readers improve with AI vs without AI assistance:
      • Not applicable. This is not an AI-assisted diagnostic device.
    • If a standalone (i.e. algorithm only without human-in-the-loop performance) was done:
      • The device is a standalone blood pressure monitor. No human-in-the-loop interaction for interpretation (as in AI devices) is relevant. Its performance is its direct measurement accuracy.
    • The type of ground truth used (expert consensus, pathology, outcomes data, etc.):
      • Ground Truth: "Standard auscultation method was used as the reference blood pressure monitor measuring." This is the established clinical standard for direct comparison.
    • The sample size for the training set:
      • Not applicable. This is not an AI/machine learning device requiring a training set.
    • How the ground truth for the training set was established:
      • Not applicable.
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    K Number
    K242728
    Date Cleared
    2025-07-31

    (324 days)

    Product Code
    Regulation Number
    870.2300
    Reference & Predicate Devices
    Why did this record match?
    510k Summary Text (Full-text Search) :

    cardiac (incl. cardiotachometer & rate alarm) |
    | 21 CFR 870.2700 | DQA | Oximeter | Oximeter |
    | 21 CFR 870.1130

    AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP AuthorizedThirdpartyExpeditedreview
    Intended Use

    The indications for use of the BeneVision Central Monitoring System include:

    • Real time viewing of patient clinical data and alarms from compatible physiological monitors. Viewing of non-real time patient clinical data of compatible anesthesia devices (i.e. not indicated for real-time monitoring of clinical data of compatible anesthesia devices).

    • Storage and Historical review of patient clinical data and alarms from compatible physiological monitor, and anesthesia devices.

    • Printing patient data from compatible physiological monitor, and anesthesia devices.

    • Configuration of local settings as well as synchronizing settings across the network to remote compatible physiological monitors.

    • Transfer of patient clinical data and settings between several CentralStations.

    • Provides a Resting 12 Lead interpretation of previously stored data.

    The BeneVision Central Monitoring System is a networked patient monitoring system intended for use in a fixed location, installed in professional healthcare facilities to provide clinicians remote patient monitoring. The network connections between the various devices can be any combination of Ethernet (Wired), Wireless WIFI (WLAN), and Wireless WMTS.

    The BeneVision Central Monitoring System supports one or more Mindray compatible physiological monitors, anesthesia systems and will display, store, print, and transfer information received from the compatible monitors, anesthesia systems.

    The telemetry monitoring systems are designed to acquire and monitor physiological data for ambulating patients within a defined coverage area. The BeneVision Central Monitoring System supports Telemetry Systems: TMS-6016, Telepack-608, TMS60, TM80, and TM70.

    • The TMS-6016 transmitter is intended for use on Adult and Pediatric patients to monitor ECG and SpO2 physiological data.

    • The Panorama Telepack-608 transmitter is intended for use on Adult patients to monitor ECG and SpO2 physiological data.

    • The TMS60 transmitter is intended for use on Adult and Pediatric patients over three years old to monitor ECG, SpO2, NIBP and Resp physiological data. The physiological data can be reviewed locally on the display of the transmitter. The CentralStation will support ECG, Heart Rate, SpO2, NIBP, Resp, Pulse Rate, Arrhythmia analysis, QT monitoring, and ST Segment Analysis for the TMS60.

    • The TM80/TM70 telemetry monitor is intended for use on Adult and Pediatric patients over three years old to monitor ECG, SpO2, NIBP and Resp physiological data. The physiological data can be analyzed, alarmed, stored, reviewed locally on the display of the monitor, and the CentralStation can config and display the physiological parameters from the TM80/TM70.

    The BeneVision Central Monitoring System is intended for use in professional healthcare facilities under the direct supervision of a licensed healthcare practitioner.

    Device Description

    The BeneVision Central Monitoring System (CMS) is a networked patient monitoring system intended for use in healthcare settings by, or under the direction of, a physician to provide clinicians remote patient monitoring. The target patient population is adult patients and pediatrics.

    When connected to a compatible anesthesia device, BeneVision CMS can display the parameters, waveforms and alarms of the anesthesia device. The device does not contain bi-directional capabilities for the compatible anesthesia devices.

    The BeneVision CMS includes the AlarmGUARD application. AlarmGUARD supports delivering notifications of physiological and technical alarms to clinical professionals' mobile devices. AlarmGUARD is not intended for real time monitoring of patients and is not intended to act as a primary source for alarms.

    AI/ML Overview

    It appears the provided FDA 510(k) clearance letter and summary for the BeneVision Central Monitoring System (K242728) does not contain specific acceptance criteria, test results (like sensitivity/specificity, accuracy metrics), or detailed study methodologies that directly address how the device's performance meets quantitative acceptance criteria for its intended functions.

    The document primarily focuses on demonstrating substantial equivalence to a predicate device (K220058) through:

    • Comparison of Indications for Use: Showing minor differences (expanded compatibility to include anesthesia systems, but not for real-time monitoring).
    • Technological Comparisons: Highlighting changes in operating systems, host configurations, and the addition of features like Multi-Patient Viewer separation and AlarmGUARD support.
    • Performance Data Section: This section lists the types of testing conducted but does not provide the results of those tests or specific acceptance criteria met by those results. It merely states that "Software verification and validation testing was conducted" and "Verification of the BeneVision Central Monitoring System was conducted to ensure that the product works as designed. Validation was conducted to check the design and performance of the product."

    Therefore, based solely on the provided text, I cannot extract the detailed information requested in your prompt regarding acceptance criteria, reported performance, sample sizes, expert qualifications, adjudication methods, MRMC studies, standalone performance, or training set details.

    The document confirms the following regarding the study:

    • Study Type: Software verification and validation testing, along with specific bench testing.
    • Clinical Data/Animal Testing: Not applicable/not required for this submission to establish substantial equivalence. This suggests the clearance relies on non-clinical data and comparison to the predicate.
    • Ground Truth: The document implies that the ground truth for software verification and validation would be the design specifications and expected behavior of the system, rather than clinical outcomes or expert consensus on a diagnostic task. For the "Waveform Display Accuracy from compatible Anesthesia Machine," the ground truth would likely be the direct output from the anesthesia machine itself.

    What is present in the document that somewhat relates to your request:

    • "Bench Testing" section (Page 19): This lists specific tests performed:
      • AlarmGUARD IEC 60601-2-27
      • AlarmGUARD IEC 60601-1-8
      • AlarmGUARD Human Factors
      • Waveform Display Accuracy from compatible Anesthesia Machine

    To fulfill your request as best as possible with the given information, I will have to state that many details are explicitly absent from this public 510(k) summary.


    Here's a structured response based on the provided document, indicating what information is present and what is absent:

    Device Acceptance Criteria and Performance Study Summary (K242728)

    Based on the provided FDA 510(k) Clearance Letter and Summary, detailed quantitative acceptance criteria and specific performance metrics (like accuracy, sensitivity, specificity) for the BeneVision Central Monitoring System are not explicitly presented. The submission primarily relies on demonstrating substantial equivalence to a predicate device (K220058) through verification and validation of software and specific bench testing.

    The document states that "Software verification and validation testing was conducted and documentation was provided as recommended by FDA's Guidance 'Content of Premarket Submissions for Device Software Functions: Guidance for Industry and Food and Drug Administration Staff'." It also mentions that "Verification of the BeneVision Central Monitoring System was conducted to ensure that the product works as designed. Validation was conducted to check the design and performance of the product."

    1. Table of Acceptance Criteria and Reported Device Performance

    Feature/FunctionAcceptance Criteria (As Implied/Stated in Document)Reported Device Performance (As Stated in Document)
    Real-time Viewing AccuracyImplicit: Accurate display of physiological data and alarms from compatible monitors, and non-real time data from anesthesia devices."Waveform Display Accuracy from compatible Anesthesia Machine" bench testing was conducted. Specific results (e.g., % accuracy, error rates) are not provided.
    AlarmGUARD FunctionalityCompliance with relevant IEC standards for alarms and human factors."AlarmGUARD IEC 60601-2-27," "AlarmGUARD IEC 60601-1-8," and "AlarmGUARD Human Factors" testing was conducted. Specific passing metrics or performance results are not detailed.
    Software FunctionalityMeets design specifications; performs as designed; adheres to V&V requirements."Software verification and validation testing was conducted" and "product works as designed" and "design and performance... checked." No specific quantitative metrics (e.g., defect rate, uptime) are provided.
    Compatibility (Anesthesia Devices)Successful display, storage, and transfer of non-real time data from Mindray A8, A9 anesthesia systems.The system "supports" these devices and the ability to "display, store, print, and transfer information" from them. Specific performance on this compatibility is not quantitatively described beyond the mention of related bench testing.
    Technological Performance Changes (e.g., Host Configurations, Max Connections)Device operates within new specifications and maintains safety and effectiveness.Subject device moved to Windows 11 for some components, increased minimum memory/CPU for CentralStation/WorkStation, increased max connections to 128. These are documented as "No change" for performance or as new specifications that were presumably met. Performance data specific to these upgrades (e.g., latency under max load) is not provided.

    2. Sample Size Used for the Test Set and Data Provenance

    • Test Set Sample Size: Not specified in the provided document for any of the listed tests (AlarmGUARD, Waveform Display Accuracy, general software V&V).
    • Data Provenance: Not specified (e.g., country of origin, retrospective/prospective). Given that no clinical data was used or required, the "data" would be synthetic, simulated, or derived from direct device connections during bench testing.

    3. Number of Experts and Qualifications for Ground Truth

    • Not applicable / Not specified. The document does not describe the use of human experts to establish ground truth for a diagnostic task or for the performance evaluation of this central monitoring system. The focus is on software function and electro-mechanical performance validation against design specifications and international standards.

    4. Adjudication Method for the Test Set

    • Not applicable / Not specified. No adjudication method is mentioned as human reader input for a test set is not described.

    5. Multi-Reader Multi-Case (MRMC) Comparative Effectiveness Study

    • No. The document explicitly states that "Clinical testing is not required to establish substantial equivalence to the predicate device" and does not mention any MRMC study. This device is a central monitoring system displaying physiological data, not an AI diagnostic tool requiring MRMC studies for improved human reader performance.

    6. Standalone Performance (Algorithm Only)

    • The "performance data" section lists "Software Verification and Validation Testing" and "Bench Testing" (including "Waveform Display Accuracy from compatible Anesthesia Machine"). These tests conceptually represent 'standalone' performance in that they evaluate the device's technical functions directly. However, no specific quantitative standalone performance metrics (e.g., classification accuracy, sensitivity, specificity for any internal algorithms) are provided in this summary beyond the statement that v&v was conducted to ensure the product "works as designed."

    7. Type of Ground Truth Used

    • The ground truth for the device's performance appears to be:
      • Design Specifications: For general software verification and validation.
      • External Reference Standards/Simulators: For tests like "Waveform Display Accuracy" (e.g., comparing the displayed waveform to the known, true signal generated by a simulator or the anesthesia machine itself).
      • International Standards: For AlarmGUARD functionality (e.g., IEC 60601-2-27, IEC 60601-1-8).

    8. The Sample Size for the Training Set

    • Not applicable / Not specified. This document describes a traditional medical device (patient monitoring system software) rather than a machine learning/AI device that typically requires a distinct "training set." Therefore, no training set size is mentioned.

    9. How the Ground Truth for the Training Set Was Established

    • Not applicable / Not specified. As no training set for an AI/ML model is indicated, there is no mention of how its ground truth would be established.
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    K Number
    K244007
    Device Name
    ArteVu
    Date Cleared
    2025-07-30

    (216 days)

    Product Code
    Regulation Number
    870.1130
    Reference & Predicate Devices
    Why did this record match?
    510k Summary Text (Full-text Search) :

    Monroeville, Pennsylvania 15146

    Re: K244007
    Trade/Device Name: ArteVu
    Regulation Number: 21 CFR 870.1130
    |
    | Classification Name | System, Measurement, Blood-Pressure, Non-Invasive |
    | Regulation Number | 870.1130

    AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP AuthorizedThirdpartyExpeditedreview
    Intended Use

    ArteVu is intended to noninvasively and continuously measure a patient's blood pressure and pulse rate, which are derived from the pulse pressure waveform using the scientific method of pulse waveform decomposition, for use on adult patients aged between 50 and 86 years who are resting in a supine or similarly reclined position.

    ArteVu is calibrated using an ISO 81060-2 compliant sphygmomanometer. All parameters derived by ArteVu are shown on a compatible remote display monitor (RDDS) via wired transmission. The device is intended for use by clinicians or other properly trained medical personnel in professional healthcare facilities.

    Device Description

    ArteVu is an automatic, continuous, and non-invasive blood pressure (CNBP) monitoring system designed for adult patients at rest and intended for use by medical professionals. The device features a disposable Finger Clip containing a tactile sensor that detects pulse pressure waveforms at the fingertip. ArteVu utilizes the scientific method of pulse waveform decomposition to derive blood pressure and pulse rate, with initial calibration performed using a non-invasive upper arm cuff. These measurements are displayed on a compatible remote monitor, updated every two seconds via wired transmission. ArteVu incorporates technical and physiological alarms to enhance reliability, providing continuous and accurate monitoring while alerting users to abnormal conditions.

    AI/ML Overview

    The provided FDA 510(k) clearance letter for ArteVu does not contain the detailed information necessary to fully answer all aspects of your request regarding acceptance criteria and the study proving the device meets these criteria. Specifically, it lacks a table of acceptance criteria with reported device performance metrics and explicit details on how ground truth was established for training and testing sets.

    However, based on the information available, here's a structured response addressing the requested points to the best of what the document provides:

    Acceptance Criteria and Study for ArteVu

    The document states that ArteVu's safety and effectiveness were validated through a clinical study that adhered to the acceptance criteria of ISO 81060-2 for substantial equivalence to the predicate device, CareTaker4. It also incorporated elements from IEEE 1708, ISO 81060-3, ISO 80601-2-61, and IEC 60601-2-27. While it doesn't provide a specific table of numerical acceptance criteria or reported values for ArteVu, it implicitly relies on the standards set by ISO 81060-2 for non-invasive sphygmomanometers. This standard typically defines accuracy requirements for blood pressure measurements.

    1. A table of acceptance criteria and the reported device performance

    The document does not provide an explicit table with numerical acceptance criteria and ArteVu's reported performance metrics against those criteria. It only states that the study design "adhered to the acceptance criteria of ISO 81060-2."

    If this were a complete submission, such a table would typically include:

    Metric (e.g., Mean Difference, Standard Deviation)Acceptance Criteria (from ISO 81060-2)ArteVu PerformancePass/Fail
    Mean Difference (Device - Reference BP)≤ ±5 mmHg(Not provided)(Not provided)
    Standard Deviation (of Differences)≤ 8 mmHg(Not provided)(Not provided)
    Percentage of measurements within X mmHg(e.g., typically for each 5, 10, 15 mmHg accuracy)(Not provided)(Not provided)

    2. Sample size used for the test set and the data provenance

    • Sample Size for Test Set: 109 subjects. The document states, "ArteVu's safety and effectiveness have been validated through a clinical study conducted in Taiwan involving 109 subjects." Since this is the primary validation study mentioned, it serves as the test set for the device's performance claims.
    • Data Provenance: The clinical study was "conducted in Taiwan." The data is prospective, as it was collected as part of a clinical study to validate the device.
    • Subject Recruitment: Subjects were recruited from "operating rooms and intensive care units."

    3. Number of experts used to establish the ground truth for the test set and the qualifications of those experts

    The document states that ArteVu is calibrated using an "ISO 81060-2 compliant sphygmomanometer" and that the study design "adhered to the acceptance criteria of ISO 81060-2." This strongly implies that the ground truth for blood pressure measurements was established using a reference standard device (the compliant sphygmomanometer) and not necessarily by a panel of human experts. Therefore, the concept of "number of experts" for establishing ground truth via consensus (as might be seen in image-based AI studies) does not directly apply here. The "experts" would be the clinical personnel performing the reference measurements according to the ISO standard.

    4. Adjudication method (e.g., 2+1, 3+1, none) for the test set

    Since the ground truth for blood pressure measurements in this context is established by a reference device (ISO 81060-2 compliant sphygmomanometer) and not by subjective interpretation of medical images or conditions by multiple human readers, a numerical adjudication method (like 2+1 or 3+1) is not applicable or mentioned. The accuracy of the sphygmomanometer itself is the standard.

    5. If a multi reader multi case (MRMC) comparative effectiveness study was done, If so, what was the effect size of how much human readers improve with AI vs without AI assistance

    • No, an MRMC comparative effectiveness study was not done as described in the document. This type of study is commonly used for AI in diagnostic imaging (e.g., radiology) where AI assists human interpretation. ArteVu is a continuous non-invasive blood pressure monitoring system, so its primary function is measurement, not assisting human readers in interpreting complex medical data.
    • Therefore, there is no mention of effect size related to human readers improving with or without AI assistance.

    6. If a standalone (i.e., algorithm only without human-in-the-loop performance) was done

    • Yes, in essence, a standalone performance assessment was conducted for the device's core function. ArteVu is described as an "automatic, continuous, and non-invasive blood pressure (CNBP) monitoring system." Its performance (accuracy against a reference standard) is evaluated directly, implying it operates as an algorithm determining BP from the pulse waveform. The clinical study validated the device's ability to "achieve comparable safety and effectiveness" to the predicate device, which is a standalone measurement. While it displays measurements for "clinicians or other properly trained medical personnel," the core measurement derivation is done by the device itself, making it a standalone function in terms of its output.

    7. The type of ground truth used

    • The primary ground truth used is a reference standard measurement from an ISO 81060-2 compliant sphygmomanometer. This standard specifies the requirements for non-invasive sphygmomanometers and their clinical validation. The document explicitly states, "ArteVu is calibrated using an ISO 81060-2 compliant sphygmomanometer" and that the "study design adhered to the acceptance criteria of ISO 81060-2."

    8. The sample size for the training set

    • The document does not specify the sample size for the training set used to develop or train the ArteVu algorithm. The 109 subjects mentioned are for the validation/test set. Typical 510(k) summaries often do not disclose detailed training set information unless it's critical to the novelty or specific performance claims of an AI/ML device. While ArteVu uses a "scientific method of pulse waveform decomposition," it's unclear if this involves a machine learning model that requires a dedicated training set as opposed to an algorithm based on established physiological models.

    9. How the ground truth for the training set was established

    • Since the training set size is not provided, the method for establishing its ground truth is also not described in this document. If ArteVu's algorithm involved machine learning, it's highly probable that similar methods (i.e., reference standard measurements from compliant sphygmomanometers) would have been used for training data as for the test data.
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    K Number
    K250179
    Date Cleared
    2025-07-29

    (188 days)

    Regulation Number
    870.1025
    Reference & Predicate Devices
    Why did this record match?
    510k Summary Text (Full-text Search) :

    Cardiotachometer & Rate Alarm) | DRT |
    | 21 CFR 870.1130 System, Measurement, Blood-Pressure, Non-Invasive

    AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP AuthorizedThirdpartyExpeditedreview
    Intended Use

    The monitors are intended to be used for monitoring, storing, recording, and reviewing of, and to generate alarms for, multiple physiological parameters of adults and pediatrics (including neonates). The monitors are intended for use by trained healthcare professionals in hospital environments.

    The monitored physiological parameters include: ECG, respiration (RESP), temperature (TEMP), functional oxygen saturation of arterial hemoglobin (SpO₂), pulse rate (PR), non-invasive blood pressure (NIBP), invasive blood pressure (IBP), carbon dioxide (CO2), and cardiac output (C.O.).

    The arrhythmia detection and ST Segment analysis are intended for adult patients.

    The NIBP monitoring supports iCUFS algorithm and iFAST algorithm. The iCUFS algorithm is intended for adult, pediatric and neonatal patients. The iFAST algorithm is intended for adult and pediatric patients (≥3 years of age). Both measurement algorithms are also intended for use with pregnant women, including pre-eclamptic patients. NIBP MAP is not applicable to pregnant women.

    The Spot Temp with T2A module can only measure temperature of adult and pediatric (> 1 year of age) patients.

    The monitors are not intended for MRI environments.

    The cardiac output (C.O.) is only intended for adult patients.

    Device Description

    The CX&UX series Patient Monitor including CX10/CX12/CX15/UX10/UX12/UX15 can perform long-time continuous monitoring of multiple physiological parameters. Also, it is capable of storing, displaying, analyzing and controlling measurements, and it will indicate alarms in case of abnormalities so that doctors and nurses can respond to the patient's situation as appropriate.

    Minor differences from the predicate device are limited to some modifications of monitoring parameter specifications. These updates do not change the fundamental scientific technology of the cleared predicate device and thus do not raise any questions about the safety and effectiveness of the subject device.

    AI/ML Overview

    The provided FDA 510(k) clearance letter details the device's technical specifications and comparisons to predicate devices, along with the non-clinical performance data and adherence to various IEC and ISO standards. However, it explicitly states: "Clinical data: The subject device did not require new clinical studies to support substantial equivalence."

    This means that the submission for this Patient Monitor device (CX10, CX12, CX15, UX10, UX12, UX15) relies on demonstrating substantial equivalence to a legally marketed predicate device (Edan Instruments, Inc., Patient Monitor Model iX10, iX12, iX15, K232962) through non-clinical performance testing and software verification/validation, rather than new clinical trials or studies involving human patients.

    Therefore, the requested information regarding acceptance criteria and studies that prove the device meets acceptance criteria through clinical performance (e.g., sample size for test set, expert involvement, MRMC studies, ground truth establishment for test/training sets, effect size of human reader improvement with AI) cannot be extracted from this document, as such clinical studies were explicitly not required for this 510(k) submission.

    The document focuses on demonstrating that the new device's technical specifications and performance are similar to the predicate device, and that it complies with relevant safety and performance standards through bench testing.

    Here's what can be extracted from the provided text regarding acceptance criteria and the type of study performed, specifically focusing on the non-clinical aspects:


    Device: Patient Monitor (CX10, CX12, CX15, UX10, UX12, UX15)

    The acceptance criteria for this device are implicitly tied to its performance meeting the standards and accuracy specifications of the predicate device and relevant international standards. Since no new clinical studies were conducted, the "proof" comes from non-clinical bench testing and software validation.

    1. Table of Acceptance Criteria and Reported Device Performance (Non-Clinical/Bench Testing)

    Parameter/Acceptance Criteria TypeDetails of Acceptance Criteria (Implicit from Standards Compliance & Predicate Equivalence)Reported Device Performance (as demonstrated by compliance)
    Electrical SafetyCompliance with IEC 60601-1 Edition 3.2 2020-08Complies with IEC 60601-1 Edition 3.2 2020-08
    Electromagnetic Compatibility (EMC)Compliance with IEC 60601-1-2:2014 (Fourth Edition)Complies with IEC 60601-1-2:2014 (Fourth Edition)
    Alarm SystemsCompliance with IEC 60601-1-8:2020 (General requirements, tests, and guidance for alarm systems)Complies with IEC 60601-1-8:2020
    ECG Monitoring Equipment PerformanceCompliance with IEC 60601-2-27:2011 (Basic safety and essential performance of electrocardiographic monitoring equipment)Complies with IEC 60601-2-27:2011
    Invasive Blood Pressure Monitoring PerformanceCompliance with IEC 60601-2-34:2011 (Basic safety, including essential performance, of invasive blood pressure monitoring equipment)Complies with IEC 60601-2-34:2011
    Automated Non-Invasive Sphygmomanometers PerformanceCompliance with IEC 80601-2-30:2018 (Basic safety and essential performance of automated non-invasive sphygmomanometers)Complies with IEC 80601-2-30:2018
    Multifunction Patient Monitoring PerformanceCompliance with IEC 80601-2-49:2018 (Basic safety and essential performance of multifunction patient monitoring equipment)Complies with IEC 80601-2-49:2018
    Respiratory Gas Monitors PerformanceCompliance with ISO 80601-2-55:2018 (Basic safety and essential performance of respiratory gas monitors)Complies with ISO 80601-2-55:2018
    Clinical Thermometers PerformanceCompliance with ISO 80601-2-56:2017+A1:2018 (Basic safety and essential performance of clinical thermometers)Complies with ISO 80601-2-56:2017+A1:2018
    Pulse Oximeter Equipment PerformanceCompliance with ISO 80601-2-61:2017 (Basic safety and essential performance of pulse oximeter equipment)Complies with ISO 80601-2-61:2017
    Wireless CoexistenceCompliance with IEEE ANSI USEMCSC C63.27 (Evaluation of Wireless Coexistence)Complies with IEEE ANSI USEMCSC C63.27
    Software FunctionalityCompliance with FDA Guidance "Content of Premarket Submissions for Device Software Functions"Software verification and validation testing conducted and documentation provided as recommended.
    Accuracy Specifications (Example: RESP)6 rpm to 200 rpm: ±2 rpmReported as meeting this accuracy specification.
    Accuracy Specifications (Example: IBP)±2% or ±1 mmHg, whichever is greater (excluding sensor error)Reported as meeting this accuracy specification.

    2. Sample Size Used for the Test Set and Data Provenance:

    • Sample Size: Not applicable in terms of human subjects or patient data test sets, as "new clinical studies" were not required. The "test set" refers to bench testing and functional system-level validation. The specific number of test cycles or a detailed breakdown of test cases for bench testing is not provided in this summary.
    • Data Provenance: The data primarily originates from Edan Instruments Inc. (Shenzhen, Guangdong, China) through internal engineering and quality assurance processes for non-clinical bench testing and software validation. It is not patient data, so concepts like "retrospective or prospective" do not apply.

    3. Number of Experts Used to Establish Ground Truth for the Test Set and Qualifications:

    • Not applicable for clinical ground truth: Since no clinical studies were performed requiring human interpretation or diagnosis for a test set, no medical experts (e.g., radiologists) were used to establish ground truth in this context.
    • Internal experts: Bench testing and software validation would have involved engineers and quality assurance professionals, whose qualifications are implicit in the quality system (21 CFR Part 820) but not specified in detail here.

    4. Adjudication Method for the Test Set:

    • Not applicable: Adjudication methods (e.g., 2+1, 3+1) are relevant for clinical studies involving multiple readers. This was not a clinical study. Bench testing relies on established technical specifications and standard compliance.

    5. If a Multi-Reader Multi-Case (MRMC) Comparative Effectiveness Study was Done:

    • No: No MRMC study was performed as no new clinical studies were required or conducted. Therefore, there's no effect size of human readers improving with AI assistance. The device is a patient monitor, not an AI-assisted diagnostic tool.

    6. If a Standalone (i.e. algorithm only without human-in-the loop performance) was Done:

    • Yes (for the technical components): The "performance testing-Bench" effectively represents a standalone evaluation of the device's functional components (ECG, NIBP, SpO2, etc.) and software against defined technical specifications and standards. The "software verification and validation testing" also represents a standalone evaluation of the algorithm and software functions. The specific algorithms (e.g., iCUFS, iFAST for NIBP, arrhythmia analysis logic) are tested independently for their accuracy against known inputs or reference standards as part of bench testing.

    7. The Type of Ground Truth Used:

    • Technical/Reference Standards: For the bench testing, the "ground truth" would be derived from:
      • Reference standards/simulators: Calibrated medical equipment, physiological simulators, and test signals (e.g., known ECG waveforms, simulated blood pressure readings, temperature standards) are used to provide the "true" values against which the device's measurements are compared.
      • Defined specifications: The device's internal design specifications and the requirements of the referenced IEC/ISO standards serve as the "ground truth" for compliance testing.
    • Not clinical ground truth: No expert consensus, pathology, or outcomes data from real patients were used for establishing ground truth for this submission.

    8. The Sample Size for the Training Set:

    • Not applicable: The device is a patient monitor, not a machine learning/AI algorithm that typically undergoes a distinct "training" phase with a large dataset. Its functionality is based on established physiological measurement principles and programmed algorithms. Any internal calibration or algorithm refinement would be part of the product development process, not a dedicated "training set" in the AI/ML sense.

    9. How the Ground Truth for the Training Set Was Established:

    • Not applicable: As there was no "training set" in the context of an AI/ML model, the concept of establishing ground truth for it does not apply to this 510(k) submission.

    In summary, this 510(k) clearance relies on demonstrating that the new Patient Monitor is substantially equivalent to a previously cleared predicate device, primarily through robust non-clinical bench testing and software validation, proving compliance with established medical device standards and functional specifications. No new clinical studies with patient data were required or conducted for this specific submission.

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    Why did this record match?
    510k Summary Text (Full-text Search) :

    Oximeter, Tissue Saturation 21 CFR 870.2700
    Noninvasive blood pressure measurement system 21 CFR 870.1130

    AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP AuthorizedThirdpartyExpeditedreview
    Intended Use
    • HemoSphere Advanced Monitor with HemoSphere Swan-Ganz Module: The HemoSphere advanced monitor when used with the HemoSphere Swan-Ganz module and Edwards Swan-Ganz catheters is indicated for use in adult and pediatric critical care patients requiring monitoring of cardiac output (continuous [CO] and intermittent [iCO]) and derived hemodynamic parameters in a hospital environment. Pulmonary artery blood temperature monitoring is used to compute continuous and intermittent CO with thermodilution technologies. It may also be used for monitoring hemodynamic parameters in conjunction with a perioperative goal directed therapy protocol in a hospital environment. Refer to the Edwards Swan-Ganz catheter and Swan-Ganz Jr catheter indications for use statements for information on target patient population specific to the catheter being used. Refer to the Intended Use statement for a complete list of measured and derived parameters available for each patient population.

    • HemoSphere Advanced Monitor with HemoSphere Oximetry Cable: The HemoSphere Advanced Monitor when used with the HemoSphere Oximetry Cable and Edwards oximetry catheters is indicated for use in adult and pediatric critical care patients requiring monitoring of venous oxygen saturation (SvO2 and ScvO2) and derived hemodynamic parameters in a hospital environment. Refer to the Edwards oximetry catheter indications for use statement for information on target patient population specific to the catheter being used. Refer to the Intended Use statement for a complete list of measured and derived parameters available for each patient population.

    • HemoSphere Advanced Monitor with HemoSphere Pressure Cable: The HemoSphere advanced monitor when used with the HemoSphere pressure cable is indicated for use in adult and pediatric critical care patients in which the balance between cardiac function, fluid status, vascular resistance and pressure needs continuous assessment. It may be used for monitoring of hemodynamic parameters in conjunction with a perioperative goal directed therapy protocol in a hospital environment. Refer to the Edwards FloTrac sensor, FloTrac Jr sensor, Acumen IQ sensor, and TruWave disposable pressure transducer indications for use statements for information on target patient populations specific to the sensor/transducer being used. The Edwards Acumen Hypotension Prediction Index software feature provides the clinician with physiological insight into a patient's likelihood of future hypotensive events and the associated hemodynamics. The Acumen HPI feature is intended for use in surgical or non-surgical patients receiving advanced hemodynamic monitoring. The Acumen HPI feature is considered to be additional quantitative information regarding the patient's physiological condition for reference only and no therapeutic decisions should be made based solely on the Acumen Hypotension Prediction Index (HPI) parameter. Refer to the Intended Use statement for a complete list of measured and derived parameters available for each patient population.

    • HemoSphere Advanced Monitor with Acumen Assisted Fluid Management Feature and Acumen IQ Sensor: The Acumen Assisted Fluid Management (AFM) software feature provides the clinician with physiological insight into a patient's estimated response to fluid therapy and the associated hemodynamics. The Acumen AFM software feature is intended for use in surgical patients >=18 years of age, that require advanced hemodynamic monitoring. The Acumen AFM software feature offers suggestions regarding the patient's physiological condition and estimated response to fluid therapy. Acumen AFM fluid administration suggestions are offered to the clinician; the decision to administer a fluid bolus is made by the clinician, based upon review of the patient's hemodynamics. No therapeutic decisions should be made based solely on the Assisted Fluid Management suggestions. The Acumen Assisted Fluid Management software feature may be used with the Acumen AFM Cable and Acumen IQ fluid meter.

    • HemoSphere Advanced Monitor with HemoSphere Technology Module and ForeSight Oximeter Cable: The non-invasive ForeSight oximeter cable is intended for use as an adjunct monitor of absolute regional hemoglobin oxygen saturation of blood under the sensors in individuals at risk for reduced-flow or no flow ischemic states. The ForeSight Oximeter Cable is also intended to monitor relative changes of total hemoglobin of blood under the sensors. The ForeSight Oximeter Cable is intended to allow for the display of StO2 and relative change in total hemoglobin on the HemoSphere advanced monitor.

      • When used with large sensors, the ForeSight Oximeter Cable is indicated for use on adults and transitional adolescents >=40 kg.
      • When used with medium sensors, the ForeSight Oximeter Cable is indicated for use on pediatric subjects >=3 kg.
      • When used with small sensors, the ForeSight Oximeter Cable is indicated for cerebral use on pediatric subjects
    Device Description

    The HemoSphere Advanced Monitor was designed to simplify the customer experience by providing one platform with modular solutions for all hemodynamic monitoring needs. The user can choose from available optional sub-system modules or use multiple sub-system modules at the same time. This modular approach provides the customer with the choice of purchasing and/or using specific monitoring applications based on their needs. Users are not required to have all of the modules installed at the same time for the platform to function.

    AI/ML Overview

    The provided FDA 510(k) clearance letter and summary for the Edwards Lifesciences HemoSphere Advanced Monitor (HEM1) and associated components outlines the device's indications for use and the testing performed to demonstrate substantial equivalence to predicate devices. However, it does not contain the detailed acceptance criteria or the specific study results (performance data) in the format typically required to answer your request fully, especially for acceptance criteria and performance of an AI/algorithm-based feature like the Hypotension Prediction Index (HPI) or Assisted Fluid Management (AFM).

    The document states:

    • "Completion of all verification and validation activities demonstrated that the subject devices meet their predetermined design and performance specifications."
    • "Measured and derived parameters were tested using a bench simulation. Additionally, system integration and mechanical testing was successfully conducted to verify the safety and effectiveness of the device. All tests passed."
    • "Software verification testing was conducted, and documentation was provided per FDA's Guidance for Industry and FDA Staff, "Guidance for the Content of Premarket Submissions for Software Contained in Medical Devices". All tests passed."

    This indicates that internal performance specifications were met, but the specific metrics, thresholds, and study designs for achieving those specifications are not detailed in this public summary.

    Therefore, I cannot populate the table with specific numerical performance data against acceptance criteria for the HPI or AFM features, nor can I provide details on sample size, expert ground truth establishment, or MRMC studies, as this information is not present in the provided text.

    The text primarily focuses on:

    • Substantial equivalence to predicate devices.
    • Indications for Use for various HemoSphere configurations and modules.
    • Description of software and hardware modifications (e.g., integration of HPI algorithm, new finger cuffs).
    • General categories of testing performed (Usability, System Verification, Electrical Safety/EMC, Software Verification) with a blanket statement that "All tests passed."

    Based on the provided document, here's what can and cannot be stated:


    1. A table of acceptance criteria and the reported device performance

    Cannot be provided with specific numerical data or thresholds from the given text. The document only states that "all verification and validation activities demonstrated that the subject devices meet their predetermined design and performance specifications." No specific acceptance criteria values (e.g., "Accuracy > X%", "Sensitivity > Y%", "Mean Absolute Error

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    Why did this record match?
    510k Summary Text (Full-text Search) :

    , CH-S692L, CH-S602, CH-W701L, CH-S693L, CH-B601L, CP-B01, CH-S603)
    Regulation Number: 21 CFR 870.1130

    • Cardiovascular
      Product code: DXN
      Regulation Class: II
      Regulation Number: 21 CFR 870.1130
    • Cardiovascular
      Product Code: DXN
      Regulation Class: II
      Regulation Number: 21 CFR 870.1130
      CH-S602, CH-W701L, CH-S693L, CH-B601L, CP-B01, CH-S603 | TM-2657P | / |
      | Classification | 21CFR 870.1130
      | 21CFR 870.1130 | Same |
      | Product Code | DXN | DXN | Same |
      | FDA Class | II | II | Same |
    AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP AuthorizedThirdpartyExpeditedreview
    Intended Use

    The Automatic Blood Pressure Monitor is designed to measure blood pressure (systolic and diastolic) and pulse rate in adult patients with arm circumference range between 7.1 inches (18.0 cm) to 16.5 inches (42 cm).

    Device Description

    The Automatic Blood Pressure Monitor (models: CH-S693L, CH-B601L, CP-B01, CH-S603, CH-S691L, CH-B607, CH-B606, CH-S692L, CH-S602, CH-W701L) is a kiosk-type, automated, single upper-arm cuff oscillometric BP monitor developed for measurement of BP and pulse rate in healthcare facility/hospital or at home.

    It is designed for BP measurements on either the right or left upper arm and has a fixed tubular (Arm barrel) opening to insert the user's arm, with an integral single-arm cuff, which when inflated surrounds the upper arm. It is suitable for arm circumference range 18~42 cm. The device has an elbow groove to ensure correct positioning of the arm and measures BP during inflation. A wide LED screen presents systolic and diastolic BP, heart rate and time of measurement. After the user pushes the start button, the cuff is inflated automatically by an internal pump, the systolic and diastolic blood pressures are determined by oscillometric method.

    Principle of operation:

    The product uses the Oscillometric Measuring method to detect blood pressure.

    When the user presses the "START" button to initiate the measurement, the winding mechanism, driven by a geared motor, begins to operate. It stops winding when it starts to encounter resistance from the arm. At this point, the cuff is adapted to the arm size. Subsequently, the cuff is automatically inflated by an internal pump to reach a pressure above systolic pressure, no blood flow occurs through the artery. As the cuff is deflated below the systolic pressure, the reducing pressure exerted on the artery allows blood to flow through it and sets up a detectable vibration in the arterial wall. When the cuff pressure falls below the patient's diastolic pressure, blood flows smoothly through the artery in the usual pulses, without any vibration being set up in the wall. Vibrations occur at any point where the cuff pressure is sufficiently high that the blood has to push the arterial wall open in order to flow through the artery. The vibrations are transferred from the arterial wall, through the air inside the cuff, into a transducer in the monitor that converts the measurements into electrical signals. Hence when it starts inflating the arm cuff, meanwhile, the unit detects pressure oscillations generated by beat-to-beat pulsatile, which is used to determine the systolic and diastolic pressure, and pulse rate.

    AI/ML Overview

    This document is a 510(k) clearance letter for an Automatic Blood Pressure Monitor, which means it describes a non-invasive blood pressure measurement system, not an AI/ML device in the context of the requested questions. The provided text is a standard FDA 510(k) summary for a traditional medical device and does not contain information about AI model performance, expert ground truth adjudication (for AI), or MRMC studies.

    Therefore, many of the requested fields are not applicable or cannot be extracted from the provided text because they pertain to AI/ML device studies, which is not what this document describes.

    However, I can extract information related to the device's performance based on the provided clinical accuracy testing for the Automatic Blood Pressure Monitor.

    Acceptance Criteria and Device Performance (Non-AI/ML Device):

    The device's clinical accuracy was tested according to ISO 81060-2 Third edition 2018-11 Amendment 1 2020-01. The document explicitly states:

    "The test data showed the clinical accuracy of the subject device complied with the requirements of ISO 81060-2 Third edition 2018-11 Amendment 1 2020-01."

    This standard outlines the requirements for clinical investigations of intermittent automated measurement type non-invasive sphygmomanometers. While the specific numerical performance metrics (e.g., mean difference and standard deviation of differences between device and reference measurements) are not quantitatively stated in the summary table, the statement of compliance confirms that the device met the acceptance criteria defined by this international standard for blood pressure measurement accuracy.

    The summary also specifies instrumental accuracy for blood pressure and pulse rate:

    • Blood Pressure Measurement Accuracy: ±3 mmHg
    • Pulse rate measurement accuracy: ±5%

    Table of Acceptance Criteria and Reported Device Performance (as inferred from the document):

    Acceptance CriterionReported Device Performance
    Clinical Accuracy (ISO 81060-2:2018+A1:2020)Complied with the requirements of ISO 81060-2 Third edition 2018-11 Amendment 1 2020-01
    Blood Pressure Measurement Accuracy±3 mmHg (instrumental accuracy)
    Pulse Rate Measurement Accuracy±5% (instrumental accuracy)

    Regarding the specific questions about AI/ML studies:

    1. A table of acceptance criteria and the reported device performance: See table above. More specific quantitative clinical performance results (e.g., mean difference and standard deviation of differences of BP readings compared to reference) are not explicitly detailed in the provided summary but are implied by the compliance statement.
    2. Sample size used for the test set and the data provenance:
      • Test Set Sample Size: 85 subjects.
      • Data Provenance: Not specified (e.g., country of origin). It's a clinical trial, implying prospective data collection for the validation study.
    3. Number of experts used to establish the ground truth for the test set and the qualifications of those experts: Not applicable. This is for a traditional blood pressure monitor validated against a reference sphygmomanometer (aneroid/auscultation method), not an AI/ML device requiring expert consensus for ground truth. The reference device was a "CM-BPM-D Aneroid sphygmomanometer" by Shanghai Caremate Medical Device Co. Ltd.
    4. Adjudication method (e.g., 2+1, 3+1, none) for the test set: Not applicable for this type of device and study. The accuracy is determined by comparison to the reference measurements.
    5. If a multi-reader multi-case (MRMC) comparative effectiveness study was done, If so, what was the effect size of how much human readers improve with AI vs without AI assistance: Not applicable. This is a traditional medical device, not an AI/ML product assisting human readers.
    6. If a standalone (i.e., algorithm only without human-in-the-loop performance) was done: The device itself is a standalone automatic blood pressure monitor. Its performance is measured directly, not as an algorithm's output to be interpreted by a human.
    7. The type of ground truth used (expert consensus, pathology, outcomes data, etc): The ground truth for the clinical accuracy study was established by measurements from an "Aneroid sphygmomanometer" using the "Aneroid/auscultation method." This is the established reference method for validating automatic BP monitors per ISO 81060-2.
    8. The sample size for the training set: Not applicable. This is a traditional device; there is no "training set" in the AI/ML sense. The device's measurement algorithm is predetermined and fixed.
    9. How the ground truth for the training set was established: Not applicable. No AI model training set.
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    Why did this record match?
    510k Summary Text (Full-text Search) :

    Sphygmomanometers (ZH-X9, ZH-X12, ZH-X16, ZH-X17, ZH-X18, ZH-X19, ZH-X23, ZH-X24)
    Regulation Number: 21 CFR 870.1130
    ZH-X24
    Common name: Noninvasive blood pressure measurement system
    Regulation number: 21 CFR 870.1130
    Co., Ltd. | Jiangsu Yuyue Medical Equipment& Supply Co., Ltd | / |
    | Regulation number | 21 CFR 870.1130
    | 21 CFR 870.1130 | 21 CFR 870.1130 | 21 CFR 870.1130 | Same |
    | Regulation description | Noninvasive

    AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP AuthorizedThirdpartyExpeditedreview
    Intended Use

    Electronic Sphygmomanometers is intended to measure the systolic and diastolic blood pressure of adult person and adolescents age 18 through 21 years of age. It can be used at home. It is contraindicated in pregnant women, including those with preeclampsia.

    Device Description

    The Electronic Sphygmomanometers, including ZH-X9, ZH-X12, ZH-X16, ZH-X17, ZH-X18, ZH-X19, ZH-X23, ZH-X24, is suitable for measurement of systolic blood pressure and diastolic blood pressure of adult person and adolescents 18 to 21 years old with arm circumference ranging from 22 cm to 42 cm by the oscillometric technique. The error is controlled within the range specified in IEC 80601-2-30 Non-invasive automated monitor. User can select the blood pressure unit mmHg or kPa. The initial inflation pressure of the cuff is zero pressure. When start the device, the cuff will be inflated and deflated.

    The device consists of the microprocessor, pressure sensor, operation keys, pump, deflation control valve, LCD screen and cuff. And all models are powered by 4 AAA dry batteries (DC 6V).

    The device has a memory function that automatically stores 2*99 sets data of the latest measurements. It can also display the latest measurement result. Additionally, the device also can read the data through voice broadcast function.

    The seven models have the same intended use, working principle, measuring range, accuracy, cuff, and conformance standard; only appearance have some difference.

    AI/ML Overview

    The provided FDA 510(k) clearance letter and synopsis for the Electronic Sphygmomanometers (K250185) primarily focus on demonstrating substantial equivalence to a predicate device, rather than detailing a specific clinical study with granular acceptance criteria for an AI-powered diagnostic device. The application is for a standard medical device (blood pressure monitor), not an AI/ML-driven diagnostic tool. Therefore, many of the requested points for an AI study (e.g., number of experts for ground truth, adjudication methods, MRMC studies, effect size of AI assistance, training set details) are not applicable or provided in this document.

    However, I can extract and infer information relevant to the device's accuracy and performance validation using the provided text, particularly concerning the mentioned standards and the comparative clinical study.

    Here's an attempt to describe the acceptance criteria and study as best as possible given the provided non-AI-specific document:


    Device: Electronic Sphygmomanometers (ZH-X9, ZH-X12, ZH-X16, ZH-X17, ZH-X18, ZH-X19, ZH-X23, ZH-X24)

    Study Type: Comparative Clinical Study (for substantial equivalence to a predicate device and mercury sphygmomanometer) and Non-Clinical Performance Testing.

    Regulation/Standard for Accuracy: IEC 80601-2-30, ISO 81060-2 (including Amendment 1(2020)), and FDA Guidance No-Invasive Blood Pressure (NIBP) Monitor Guidance.

    1. Acceptance Criteria and Reported Device Performance

    The core acceptance criterion for non-invasive blood pressure monitors, as per ISO 81060-2 (which is explicitly listed as a standard the device complies with), relies on statistical analysis of difference between the device's readings and a reference standard (usually mercury sphygmomanometer readings or an established method). The key metrics are:

    • Mean Difference (Bias): The average difference between the device reading and the reference reading.
    • Standard Deviation of the Differences: A measure of the spread of these differences.

    The ISO 81060-2 standard (for clinical validation of automated measurement type) typically requires:

    • Mean difference between the test device and reference measurement: $\leq \pm 5$ mmHg
    • Standard deviation of the differences (SD): $\leq 8$ mmHg
    Acceptance Criteria (Based on ISO 81060-2)Reported Device Performance (from "Accuracy" section)
    Mean difference $\leq \pm 5$ mmHgPressure: $\pm 3$ mmHg ($\pm 0.4$ kPa) or 2% of the reading
    Standard deviation $\leq 8$ mmHg(Not explicitly stated, but implied compliance with ISO 81060-2)
    Pulse Rate Accuracy: $\leq \pm 5$%Pulse Rate: $\pm 5$%

    Note: The reported accuracy of $\pm 3$ mmHg or 2% of the reading for pressure is a general accuracy specification, not necessarily the mean difference and standard deviation from the clinical validation as per ISO 81060-2. However, achieving $\pm 3$ mmHg as a general accuracy implies that the device is likely to meet or exceed the ISO 81060-2 criteria. The document states compliance with ISO 81060-2, meaning it passed these criteria.

    2. Sample Size and Data Provenance

    • Test Set (Clinical Study): The document states, "We conducted a comparative clinical study to verify the performance of the proposed device and predicate device as well as a mercury sphygmomanometer according to ISO 81060-2."
      • Sample Size: ISO 81060-2 typically requires a minimum of 85 subjects for clinical validation. The document does not explicitly state the exact sample size used in their study, but implies it met the requirements of the standard it followed.
      • Data Provenance: Not specified (e.g., country of origin). The study is described as a "comparative clinical study," which generally implies a prospective data collection for the purpose of the validation.

    3. Number/Qualifications of Experts for Ground Truth

    • Not Applicable / Not Specified: For a blood pressure monitor, the "ground truth" for blood pressure measurements is typically established using a reference standard like a mercury sphygmomanometer or an auscultatory method performed by trained observers, as outlined in ISO 81060-2. This is a measurement comparison, not an expert-based image interpretation or diagnosis that would require multiple reading experts in the AI sense.

    4. Adjudication Method

    • Not Applicable / Not Specified: Since this is a direct physiological measurement comparison, adjudication methods commonly seen in AI/image interpretation studies (e.g., 2+1, 3+1 consensus) are not relevant here. The ISO 81060-2 standard defines precise measurement protocols by trained observers for comparison.

    5. Multi-Reader Multi-Case (MRMC) Comparative Effectiveness Study

    • Not Applicable: This type of study is relevant for AI-assisted diagnostic aids where human readers' performance (e.g., accuracy, efficiency) is evaluated with and without AI. This device is a standalone measurement tool, not an AI diagnostic aid for human readers.

    6. Standalone (Algorithm Only) Performance

    • Implicitly Done: The "Performance Data" section explicitly states compliance with "IEC 80601-2-30" and "ISO 81060-2." These standards define the requirements for the automated (standalone) measurement of non-invasive blood pressure, requiring the device algorithm (oscillometric technique) to provide accurate pressure readings independently. The clinical study compares the device's automated readings against a reference standard.

    7. Type of Ground Truth Used

    • Reference Standard Measurement: The ground truth for blood pressure measurements was established using a mercury sphygmomanometer (or an equivalent valid reference method) during the comparative clinical study, as per the ISO 81060-2 standard. This is a direct, objective physiological measurement.

    8. Sample Size for the Training Set

    • Not Applicable: This is a traditional medical device (blood pressure monitor) that utilizes a deterministic oscillometric algorithm, not a machine learning or AI model that requires a "training set" in the context of deep learning. Its algorithm is based on established engineering principles for detecting pressure oscillations.

    9. How Ground Truth for Training Set Was Established

    • Not Applicable: As there is no "training set" for a machine learning model, this point is not relevant for this device.
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    Why did this record match?
    510k Summary Text (Full-text Search) :

    . §870.1130 Noninvasive blood pressure measurement system.
    21 C.F.R. §870.2700 Oximeter
    21 C.F.R.

    AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP AuthorizedThirdpartyExpeditedreview
    Intended Use

    The monitor B105M, B125M, B155M, B105P and B125P are portable multi-parameter patient monitors intended to be used for monitoring, recording, and to generate alarms for multiple physiological parameters of adult, pediatric, and neonatal patients in a hospital environment and during intra-hospital transport.

    The monitor B105M, B125M, B155M, B105P and B125P are intended for use under the direct supervision of a licensed health care practitioner.

    The monitor B105M, B125M, B155M, B105P and B125P are not Apnea monitors (i.e., do not rely on the device for detection or alarm for the cessation of breathing). These devices should not be used for life sustaining/supporting purposes.

    The monitor B105M, B125M, B155M, B105P and B125P are not intended for use during MRI.

    The monitor B105M, B125M, B155M, B105P and B125P can be stand-alone monitors or interfaced to other devices via network.

    The monitor B105M, B125M, B155M, B105P and B125P monitor and display: ECG (including ST segment, arrhythmia detection, ECG diagnostic analysis and measurement), invasive blood pressure, heart/pulse rate, oscillometric non-invasive blood pressure (systolic, diastolic and mean arterial pressure), functional oxygen saturation (SpO2) and pulse rate via continuous monitoring (including monitoring during conditions of clinical patient motion or low perfusion), temperature with a reusable or disposable electronic thermometer for continual monitoring Esophageal/Nasopharyngeal/Tympanic/Rectal/Bladder/Axillary/Skin/Airway/Room/Myocardial/Core/Surface temperature, impedance respiration, respiration rate, airway gases (CO2, O2, N2O, anesthetic agents, anesthetic agent identification and respiratory rate), Cardiac Output (C.O.), Entropy, neuromuscular transmission (NMT) and Bispectral Index (BIS).

    The monitor B105M, B125M, B155M, B105P and B125P are able to detect and generate alarms for ECG arrhythmias: Asystole, Ventricular tachycardia, VT>2, Ventricular Bradycardia, Accelerated Ventricular Rhythm, Ventricular Couplet, Bigeminy, Trigeminy, "R on T", Tachycardia, Bradycardia, Pause, Atrial Fibrillation, Irregular, Multifocal PVCs, Missing Beat, SV Tachy, Premature Ventricular Contraction (PVC), Supra Ventricular Contraction (SVC) and Ventricular fibrillation.

    Device Description

    The proposed monitors B105M, B125M, B155M, B105P and B125P are new version of multi-parameter patient monitors developed based on the predicate monitors B105M, B125M, B155M, B105P and B125P (K213490) to provide additional monitored parameter Bispectral Index (BIS) by supporting the additional optional E-BIS module (K052145) which used in conjunction with Covidien BISx module (K072286).

    In addition to the added parameter, the proposed monitors also offer below several enhancements:

    • Provided data connection with GE HealthCare anesthesia devices to display the parameters measured from anesthesia devices (Applicable for B105M, B125M and B155M).
    • Modified Early Warning Score calculation provided.
    • Separated low priority alarms user configurable settings from the combined High/Medium/Low priority options.
    • Provided additional customized notification tool to allow clinician to configure the specific notification condition of one or more physiological parameters measured by the monitor. (Applicable for B105M, B125M and B155M).
    • Enhanced User Interface in Neuromuscular Transmission (NMT), Respiration Rate and alarm overview.
    • Provided Venous Stasis to assist venous catheterization with NIBP cuff inflation.
    • Supported alarm light brightness adjustment.
    • Supported alarm audio pause by gesture (Not applicable for B105M and B105P).
    • Supported automatic screen brightness adjustment.
    • Supported network laser printing.
    • Continuous improvements in cybersecurity

    The proposed monitors B105M, B125M, B155M, B105P and B125P retain equivalent hardware design based on the predicate monitors and removal of the device Trim-knob to better support cleaning and disinfecting while maintaining the same primary function and operation.

    Same as the predicate device, the five models (B105M, B125M, B155M, B105P and B125P) share the same hardware platform and software platform to support the data acquisition and algorithm modules. The differences between them are the LCD screen size and configuration options. There is no change from the predicate in the display size.

    As with the predicate monitors B105M, B125M, B155M, B105P and B125P (K213490), the proposed monitors B105M, B125M, B155M, B105P and B125P are multi-parameter patient monitors, utilizing an LCD display and pre-configuration basic parameters: ECG, RESP, NIBP, IBP, TEMP, SpO2, and optional parameters which include CO2 and Gas parameters provided by the E-MiniC module (K052582), CARESCAPE Respiratory modules E-sCO and E-sCAiO (K171028), Airway Gas Option module N-CAiO (K151063), Entropy parameter provided by the E-Entropy module (K150298), Cardiac Output parameter provided by the E-COP module (K052976), Neuromuscular Transmission (NMT) parameter provided by E-NMT module (K051635) and thermal recorder B1X5-REC.

    The proposed monitors B105M, B125M, B155M, B105P and B125P are not Apnea monitors (i.e., do not rely on the device for detection or alarm for the cessation of breathing). These devices should not be used for life sustaining/supporting purposes. Do not attempt to use these devices to detect sleep apnea.

    As with the predicate monitors B105M, B125M, B155M, B105P and B125P (K213490), the proposed monitors B105M, B125M, B155M, B105P and B125P also can interface with a variety of existing central station systems via a cabled or wireless network which implemented with identical integrated WiFi module. (WiFi feature is disabled in B125P/B105P).

    Moreover, same as the predicate monitors B105M, B125M, B155M, B105P and B125P (K213490), the proposed monitors B105M, B125M, B155M, B105P and B125P include features and subsystems that are optional or configurable, and it can be mounted in a variety of ways (e.g., shelf, countertop, table, wall, pole, or head/foot board) using existing mounting accessories.

    AI/ML Overview

    The provided FDA 510(k) clearance letter and summary for K242562 (Monitor B105M, Monitor B125M, Monitor B155M, Monitor B105P, Monitor B125P) do not contain information about specific acceptance criteria, reported device performance metrics, or details of a study meeting those criteria for any of the listed physiological parameters or functionalities (e.g., ECG or arrhythmia detection).

    Instead, the documentation primarily focuses on demonstrating substantial equivalence to a predicate device (K213490) by comparing features, technology, and compliance with various recognized standards and guidance documents for safety, EMC, software, human factors, and cybersecurity.

    The summary explicitly states: "The subject of this premarket submission, the proposed monitors B105M/B125M/B155M/B105P/B125P did not require clinical studies to support substantial equivalence." This implies that the changes introduced in the new device versions were not considered significant enough to warrant new clinical performance studies or specific quantitative efficacy/accuracy acceptance criteria beyond what is covered by the referenced consensus standards.

    Therefore, I cannot provide the requested information from the given text:

    1. A table of acceptance criteria and the reported device performance: This information is not present. The document lists numerous standards and tests performed, but not specific performance metrics or acceptance thresholds.
    2. Sample size used for the test set and the data provenance: Not explicitly stated for performance evaluation, as clinical studies were not required. The usability testing mentioned a sample size of 16 US clinical users, but this is for human factors, not device performance.
    3. Number of experts used to establish the ground truth for the test set and the qualifications of those experts: Not applicable, as detailed performance studies requiring expert ground truth are not described.
    4. Adjudication method (e.g. 2+1, 3+1, none) for the test set: Not applicable.
    5. If a multi reader multi case (MRMC) comparative effectiveness study was done, If so, what was the effect size of how much human readers improve with AI vs without AI assistance: Not applicable. This device is a patient monitor, not an AI-assisted diagnostic tool that would typically involve human readers.
    6. If a standalone (i.e. algorithm only without human-in-the loop performance) was done: The document describes "Bench testing related to software, hardware and performance including applicable consensus standards," which implies standalone testing against known specifications or simulated data. However, specific results or detailed methodologies for this type of testing are not provided beyond the list of standards.
    7. The type of ground truth used (expert consensus, pathology, outcomes data, etc.): Not explicitly stated for performance assessment. For the various parameters (ECG, NIBP, SpO2, etc.), it would typically involve reference equipment or validated methods as per the relevant IEC/ISO standards mentioned.
    8. The sample size for the training set: Not applicable, as this is not an AI/ML device that would require explicit training data in the context of this submission.
    9. How the ground truth for the training set was established: Not applicable.

    In summary, the provided document focuses on demonstrating that the new monitors are substantially equivalent to their predicate through feature comparison, adherence to recognized standards, and various non-clinical bench tests (e.g., hardware, alarms, EMC, environmental, reprocessing, human factors, software, cybersecurity). It does not contain the detailed performance study results and acceptance criteria typically found for novel diagnostic algorithms or AI-driven devices.

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    K Number
    K250415
    Manufacturer
    Date Cleared
    2025-07-02

    (139 days)

    Product Code
    Regulation Number
    870.1130
    Reference & Predicate Devices
    Why did this record match?
    510k Summary Text (Full-text Search) :

    Trade/Device Name: G0 Blood Pressure Monitoring System (G0)
    Regulation Number: 21 CFR 870.1130
    |
    | Classification Name | System, Measurement, Blood-Pressure, Non-Invasive |
    | Regulation Number | 870.1130

    AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP AuthorizedThirdpartyExpeditedreview
    Intended Use

    The Aktiia G0 Blood pressure monitoring system consists of a wrist worn monitor and an oscillometric cuff. The system is intended for measuring blood pressure and pulse rate based on using a Pulse Wave technique in adults aged from 22 to 59 years old with wrist circumference ranging from 14 cm to 21 cm following a calibration process (every 24 hours) using the oscillometric blood pressure cuff.

    The Aktiia G0 Blood pressure monitoring system is intended for spot-checking of adult patients for home use.

    Device Description

    The Aktiia G0 Blood Pressure Monitoring System measures blood pressure and pulse rate (spot check) based on the analysis of Photoplethysmography (PPG) signals. Aktiia G0 Blood Pressure Monitoring System consists of the following components:

    • Bracelet
    • Charger (for the Bracelet)
    • Aktiia Init I1 (cuff)
    • Mobile App
    • Backend Software and Algorithm (in the Cloud)

    The Aktiia G0 Blood Pressure Monitoring System hardware component, referred to as the bracelet, is responsible for PPG data acquisition on the user's wrist. It is composed of a data logging unit called the pod and of a detachable strap that is intended to secure the pod to the user's wrist. The pod uses the bracelet's electronics and PPG sensor. The bracelet's internal battery is located inside the pod and is recharged using a pin to USB docking station using a provided charger.

    A calibration process (also referred to as initialization) is required prior to converting blood pressure values from optical data. This calibration process uses reference blood pressure values measured with an oscillometric blood pressure monitor (cuff) also referred to as Aktiia Init I1.

    The Aktiia G0 Blood Pressure Monitoring System includes a mobile application for displaying data to the user and uses a cloud server referred to as the backend for data storage. The backend also hosts the algorithm which converts optical data generated by the bracelet into blood pressure and pulse rate data.

    AI/ML Overview

    The FDA 510(k) clearance letter for the Aktiia G0 Blood Pressure Monitoring System (K250415) provides details on the acceptance criteria and the study conducted to prove the device meets these criteria.

    Here's a breakdown of the requested information:

    1. Table of Acceptance Criteria and Reported Device Performance

    The core acceptance criterion for blood pressure measurement accuracy for both the G0 System and the Aktiia Init I1 cuff is compliance with ISO 81060-2. For pulse rate, a specific RMSE threshold is provided.

    Acceptance CriterionReported Device Performance
    Blood Pressure Accuracy: Complies with ISO 81060-2:2018 (for both G0 System and Aktiia Init I1 cuff)"When comparing BP measurements of reference methods to the G0 Blood Pressure Monitoring System and the Aktiia Init I1 achieved the requirements of ISO 81060-2:2018 and accurately displayed blood pressure."
    Pulse Rate Accuracy: RMSE ≤ 3 beats per minute (bpm) when compared to ECG readings.Not explicitly stated if this threshold was met, but the study was designed to achieve it: "The primary endpoint required that the root mean square error (RMSE) of pulse rate measurements remain ≤3 beats per minute (bpm) when compared to ECG readings." The implication is that the primary endpoint was satisfied for clearance.

    2. Sample Sizes and Data Provenance

    • Test Set Sample Size:
      • Blood Pressure: The document states that "Clinical validations of blood pressure per ISO 81060-2:2018 were performed." ISO 81060-2:2018 generally requires a minimum of 85 subjects for accuracy testing, evenly distributed across specific blood pressure ranges. While the exact number isn't explicitly stated for the BP validation itself, the pulse rate study involved 85 participants, and it's highly likely that the blood pressure validation used the same or a very similar cohort given it was also a clinical investigation aiming for ISO compliance.
      • Pulse Rate: 85 participants were included in the final dataset for the pulse rate validation study (NCT06565780), with 1273 simultaneous pulse rate measurements collected.
    • Data Provenance: The study aimed for "a representative US population cohort," which implies the data originated from the United States. The study was a prospective clinical investigation (NCT06565780).

    3. Number of Experts and Qualifications for Ground Truth

    The document does not explicitly state the number of experts or their specific qualifications for establishing the ground truth for the blood pressure measurements. However, for blood pressure, the ground truth reference method was double auscultation. This method inherently involves human observers (typically trained medical professionals) taking readings.

    For pulse rate, the ground truth was an electrocardiogram (ECG), which is a gold standard instrumental measurement and does not inherently require expert human interpretation for establishing pulse rate.

    4. Adjudication Method for the Test Set

    • Blood Pressure: The ground truth was established by "double auscultation." This method typically involves two independent observers taking blood pressure readings, and potentially a third if there is a significant discrepancy. The document does not specify the exact adjudication protocol (e.g., 2+1, 3+1), but conformity to ISO 81060-2 implies a standardized, typically adjudicated, process for reference measurements.
    • Pulse Rate: The ground truth was an ECG. Adjudication for instrumental measurements like ECG usually refers to the process of interpreting or reviewing the ECG waveform, but for simple pulse rate determination, the automated measurement from the ECG device is considered the ground truth. There is no mention of human adjudication for the ECG-derived pulse rate.

    5. Multi-Reader Multi-Case (MRMC) Comparative Effectiveness Study

    No, a Multi-Reader Multi-Case (MRMC) comparative effectiveness study was not explicitly mentioned for the Aktiia G0 Blood Pressure Monitoring System. The device is a "blood pressure monitoring system," not an interpretation device like an AI for medical imaging. The evaluation focuses on the accuracy of the device's measurements against established reference methods, not on how human readers' performance is improved by AI assistance in diagnosis or interpretation.

    6. Standalone (Algorithm Only) Performance

    Yes, a standalone performance evaluation was conducted. The clinical validation studies (ISO 81060-2 for BP, NCT06565780 for PR) assessed the accuracy of the Aktiia G0 system's measurements (algorithm output) against reference methods (double auscultation for BP, ECG for PR).

    7. Type of Ground Truth Used

    • Blood Pressure: Expert consensus via double auscultation (a highly standardized and accepted clinical method for reference blood pressure measurement).
    • Pulse Rate: Instrumental data (electrocardiogram - ECG), which is considered a gold standard for heart rate measurement.

    8. Sample Size for the Training Set

    The document does not provide information regarding the sample size used for the training set of the algorithm. It only details the clinical validation (test) set.

    9. How Ground Truth for the Training Set Was Established

    The document does not provide information on how the ground truth for the training set was established. It only details the establishment of ground truth for the test set used in the clinical validation studies. Given that the algorithm is described as "Pulse-Wave Analysis (PWA)," it would conceptually involve matching optical signal data to simultaneously acquired reference blood pressure measurements (likely oscillometric cuff or arterial line) to train the model, but these specifics are not in the provided text.

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