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The Fully Automatic Digital Blood Pressure Monitors are intended to measure (systolic and diastolic) and pulse rate of adults and adolescents over 12 years of age.

The Arm-type and Wrist-type Fully Automatic Digital Blood Pressure Monitor (BPM) series is automatic, non-invasive, blood pressure measurement system for over-the-counter (OTC) use in home and clinical environment . The systolic and diastolic pressures are determined using the oscillometric method, where the cuff is inflated with an integral controllable piezoelectric pump and deflates via an electric automatic rapid deflation valve. During measurements, an electric pump within the main unit slowly inflates the arm/wrist cuff, generating cuff pressure which is monitored and from which pulse waveform data is extracted. This waveform data is analyzed by software algorithms within the microprocessor to determine pulse rate, systolic pressure, and diastolic pressure. The cuff can measure pressure range from 0 to 299mmHg, and the pulse rate range from 30 to 180 beats/min.

The pulse rate measurement is compare the longest and the shortest time intervals of detected pulse waves to mean time interval and displays a warning signal with the reading to indicate the detection of irregular heartbeat when the difference of the time intervals is over 25%.

Meanwhile, these blood pressure monitor devices can be used as a stand-alone unit to finish the blood pressure measurement or in conjunction with the "JoyHealth" APP through the embed a 2.4GHz BLE module that allow users to connect with nearby BT receiving terminal. Once measurement is over, the LCD of the device displays results. And the device will start to transmit data to the pair-up terminal automatically. This app is only intended to display trend graphs of measured systolic and diastolic blood pressure and pulse rate, which does not provide any diagnostic or measurement functions, and does not interpret or analyze the data for medical decision making.

Unlimited readings can be stored in the app for archiving and review by the user.

The provided document is a 510(k) summary for Joytech Healthcare Co., Ltd.'s Fully Automatic Digital Blood Pressure Monitors. It describes the device, its intended use, comparison with predicate devices, and performance data to demonstrate substantial equivalence.

Based on the provided text, the device in question is a Fully Automatic Digital Blood Pressure Monitor (both arm-type and wrist-type). The study described is a clinical investigation to assess the accuracy of blood pressure and pulse rate measurements. This is not an AI/ML study, but rather a traditional medical device accuracy study. Therefore, several of the requested sections related to AI/ML specific criteria (like effect size of human readers with vs. without AI, training set details, ground truth establishment for training set) are not applicable or cannot be extracted from this document.

Here's the information that can be extracted from the provided text:

Device Under Evaluation: Joytech Healthcare Co., Ltd.'s Fully Automatic Digital Blood Pressure Monitors (Arm-type and Wrist-type models)

Purpose of the Study: To demonstrate the accuracy of the blood pressure monitor measurements against a reference device, in accordance with ISO 81060-2:2018+AMD2020. This is to support the substantial equivalence claim for 510(k) clearance.

1. Table of Acceptance Criteria and Reported Device Performance

The acceptance criteria are implicitly defined by the standard ISO 81060-2:2018+AMD2020 (Non-invasive sphygmomanometers --Part 2: Clinical investigation of intermittent automated measurement type). The document states that the results "showed the accuracy of the blood pressure monitor is within acceptable scope specified in ISO 81060-2:2018+AMD2020." Specific numerical performance metrics (e.g., mean difference and standard deviation of differences as per ISO 81060-2) and the exact acceptance thresholds are not explicitly listed in this summary, but rather referred to the standard.

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

• Test Set Sample Size:
  • Arm-type: 85 patients (46 females and 39 males)
  • Wrist-type (Model DBP-8278B representative): 85 patients (43 females and 42 males)
  • Wrist-type (Model DBP-8276H representative): 85 patients (41 females and 44 males)
• Data Provenance: The document does not explicitly state the country of origin. It indicates "clinical investigation," implying prospective data collection for the purpose of the study. All subjects were volunteers.

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

This information is not explicitly provided in the document. For blood pressure measurement accuracy studies following ISO 81060-2, the ground truth is typically established by trained and certified observers using a reference sphygmomanometer (e.g., manual mercury sphygmomanometer) following a strict protocol. The number of observers and their specific qualifications are not detailed here.

4. Adjudication Method for the Test Set

The document states, "The manual Mercury Sphygmomanometer was used as a reference device." It describes a "Same arm sequential method" (for arm-type) and "Same wrist sequential method" (for wrist-type) for the clinical testing. This implies direct comparison rather than an adjudication process typically seen in image-based AI studies where multiple readers interpret cases. The reference device measurement is considered the ground truth.

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 medical device accuracy study, not an AI/ML study, nor an MRMC study involving human readers and AI assistance.

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

N/A. The device is a blood pressure monitor that directly provides readings, not an AI algorithm that generates an interpretation for a human to review. The "standalone" performance here refers to the device's accuracy in measuring blood pressure against a reference.

7. The Type of Ground Truth Used

• Type of Ground Truth: Measurements obtained from a manual Mercury Sphygmomanometer.

8. The Sample Size for the Training Set

Not Applicable. This is a medical device accuracy study, not an AI/ML study that involves training a model.

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

Not Applicable. (See point 8)

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