(183 days)
The CARESCAPE B450 is a multi-parameter patient monitor intended for use in multiple areas and intrahospital transport within a professional healthcare facility.
The CARESCAPE B450 is intended for use on adult, pediatric, and neonatal patients and on one patient at a time. The CARESCAPE B450 is indicated for monitoring of:
· hemodynamic (including ECG, ST segment, arrhythmia detection, ECG diagnostic and measurement, invasive pressure, non-invasive blood pressure, pulse oximetry, regional oxygen saturation, total hemoglobin concentration, cardiac output (thermodilution and pulse contour), temperature, mixed venous oxygen saturation, and central venous oxygen saturation),
· respiratory (impedance respiration, airway gases (CO2, O2, N2O, and anesthetic agents), spirometry, gas exchange), and
· neurophysiological status (including electroencephalography, Entropy, Bispectral Index (BIS), and neuromuscular transmission).
The CARESCAPE B450 can be a stand-alone monitor or interfaced to other devices. It can also be connected to other monitors for remote viewing and to data management software devices via a network.
The CARESCAPE B450 is able to detect and generate alarms for ECG arrhythmias: atrial fibrillation, accelerated ventricular rhythm, asystole, bigeminy, bradycardia, ventricular couplet, missing beat, multifocal premature ventricular contractions (PVCs), pause, R on T, supra ventricular tachycardia, trigeminy, ventricular bradycardia, ventricular fibrillation/ventricular tachycardia, ventricular tachycardia, and VT>2. The CARESCAPE B450 also shows alarms from other ECG sources.
The CARESCAPE B450 also provides other alarms, trends, snapshots and calculations, and can be connected to displays, printers and recording devices.
The CARESCAPE B450 is intended for use under the direct supervision of a licensed healthcare practitioner, or by personnel trained in proper use of the equipment in a professional healthcare facility
CARESCAPE B450 is a new version of a portable multiparameter patient monitoring system. The CARESCAPE B450 includes the monitor itself with built-in CPU, power unit, a 12 inch touch display, the CARESCAPE Software and one or two batteries. CARESCAPE B450 is equipped with an ePort interface that supports use of PDM or CARESCAPE ONE patient data acquisition modules for patient monitoring. CARESCAPE B450 is also equipped with one module slot where patient data acquisition modules (E-Modules), can be connected to perform patient monitoring. The CARESCAPE B450 includes features and subsystems that are optional or configurable.
Based on the provided text, here's an analysis of the acceptance criteria and the study that proves the device meets them:
The document describes the CARESCAPE B450, a multiparameter patient monitor. This submission is for a new version of the device, primarily focusing on updated software and minor hardware modifications.
The document does not contain details about specific acceptance criteria for performance metrics (e.g., sensitivity, specificity, accuracy for arrhythmia detection) or a study proving the device meets those criteria with statistical significance. Instead, it primarily focuses on demonstrating substantial equivalence to a predicate device (K191249 CARESCAPE B450) and compliance with general safety and performance standards through non-clinical testing.
Here's a breakdown of the requested information based on the available text:
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A table of acceptance criteria and the reported device performance
This information is not explicitly provided in the document. The submission aims to show that the new CARESCAPE B450, with its updated software and minor hardware, is "substantially equivalent" to its predicate device. This implies that its performance is expected to meet the same standards as the predicate, but specific performance metrics and acceptance thresholds for those metrics are not detailed.
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Sample size used for the test set and the data provenance (e.g. country of origin of the data, retrospective or prospective)
This information is not provided. The document states that "Bench testing related to software, hardware and performance including applicable consensus standards was conducted on the CARESCAPE B450, demonstrating the design meets the specifications." It also notes that "The subject of this premarket submission, CARESCAPE B450 did not require clinical studies to support substantial equivalence." This indicates that the primary validation was through non-clinical bench testing, not through studies on patient data.
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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)
This information is not provided. As clinical studies were not required and the validation was primarily non-clinical bench testing, the concept of "ground truth" derived from expert consensus on patient data (as would be typical for AI/ML performance studies) is not applicable or described in this document.
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Adjudication method (e.g. 2+1, 3+1, none) for the test set
This information is not provided. Since no clinical studies or evaluations of diagnostic performance against a "ground truth" established by experts on a test set are detailed, adjudication methods are not mentioned.
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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 MRMC comparative effectiveness study was done or reported. The device is a patient monitor with arrhythmia detection, not an AI-assisted diagnostic tool for human readers in the context of an MRMC study.
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If a standalone (i.e. algorithm only without human-in-the-loop performance) was done
The document states that "Bench testing related to software, hardware and performance... was conducted," implying that the device's inherent functional performance was tested. The phrase "algorithm only" isn't explicitly used, but the testing would effectively assess the device's standalone operation. However, no specific performance metrics (like those one would expect for an AI algorithm, e.g., sensitivity/specificity for specific arrhythmias) are reported. The device features "EK-Pro arrhythmia detection algorithm EK-Pro V14", and its performance is assumed to be equivalent to the predicate using the same algorithm version.
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The type of ground truth used (expert consensus, pathology, outcomes data, etc.)
For the non-clinical bench testing, the "ground truth" would likely be based on established engineering specifications, simulated physiological signals, and validated test protocols inherent to medical device performance testing, rather than expert consensus, pathology, or outcomes data from human subjects. This type of detail is not further elaborated in the document.
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The sample size for the training set
This information is not provided. As the submission is for a new version of an existing device primarily involving software updates and minor hardware changes, and the algorithm (EK-Pro V14) itself is listed as "Identical" to the predicate, details about a training set for a new or significantly retrained algorithm are not discussed.
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How the ground truth for the training set was established
This information is not provided, for the same reasons as point 8.
§ 870.1025 Arrhythmia detector and alarm (including ST-segment measurement and alarm).
(a)
Identification. The arrhythmia detector and alarm device monitors an electrocardiogram and is designed to produce a visible or audible signal or alarm when atrial or ventricular arrhythmia, such as premature contraction or ventricular fibrillation, occurs.(b)
Classification. Class II (special controls). The guidance document entitled “Class II Special Controls Guidance Document: Arrhythmia Detector and Alarm” will serve as the special control. See § 870.1 for the availability of this guidance document.