Search Results

The Rhythm Express remote cardiac monitoring system is intended for use by patients greater than 10 kg who either have or are at risk of having cardiac disease and those that demonstrate intermittent symptoms indicative of cardiac disease and require cardiac monitoring on a continuing basis. The device continuously records ECG data and upon detection by an ECG analysis algorithm or manually initiated by the patient, automatically delivers the recorded cardiac activity to the server where it is presented for review by a medical professional. The data received from the Rhythm Express device can be used by another compatible device for arrhythmia analysis, reporting and signal measurements. The Rhythm Express device is not intended to be used as part of an alarm system or for active patient monitoring.

The device does not deliver any therapy, administer any drugs, provide interpretive or diagnostic statements or provide for any life support. The Rhythm Express system communicates events from the patient to the monitoring center within one to seven minutes (assuming cell service is available) and hence is not suitable for use as a real-time arrhythmia event monitor.

This device is not intended for patients in whom quantification of triplets/couplets is needed.

The RX-1 mini Rhythm Express Remote Cardiac Monitoring System (RCMS) is a multiple function device consisting of three components: 1) the RX-1 mini remote cardiac monitoring device ("RX-1 mini device") with on-board ECG waveform analysis algorithm, 2) the Web Service (RS-1) with server and database, and 3) back-office software (Operator Portal and Clinic Portal). The RS-1 server, Operator Portal, and Clinic Portal are non-device software functions.

The RX-1 mini device is worn by patients for a period of time as prescribed by a physician, up to 30 days, and continuously monitors ECG. The RX-1 mini device functions in one of three modes: a) Outpatient Cardiac Telemetry (OCT), b) Event Recorder (ER), and c) Wireless Holter monitor (WH). The device connects to standard ECG electrodes to capture 2 channel ECGs. The embedded algorithm processes the acquired ECG to detect arrhythmias, compress the ECG, and remove most in-band noise without distorting ECG morphology. The RX-1 mini device incorporates a cellular modem and Wi-Fi to communicate with the RS-1 Web Service.

The RX-1 mini device is not a life-supporting or life-sustaining system. Clinical judgment and experience are used to check and interpret the data. The device does not deliver any therapy, administer any drugs, provide interpretive or diagnostic statements.

This FDA 510(k) clearance letter and summary does not contain the specific details required to fully address your request regarding acceptance criteria and the study that proves the device meets them.

The provided document primarily focuses on:

• Regulatory information: Clearance letter, product codes, classification, and applicable regulations.
• Device comparison: High-level overview of similarities and differences with the predicate device.
• General performance testing: A list of standards to which various tests were conducted (EMC, electrical safety, biocompatibility, software functionality, etc.), but not the specific results or acceptance criteria for those tests.
• Indications for Use: Clarification on the intended purpose of the device.

Crucially, it lacks the detailed information about the clinical study, including:

• Specific acceptance criteria for clinical performance: While it mentions "ECG algorithm performance," it doesn't state what metrics (e.g., sensitivity, specificity for arrhythmia detection) were used or what the target values were.
• Reported device performance values: There are no tables or explicit statements of the device's accuracy for detecting specific cardiac events.
• Test set details: No information on sample size, data provenance, ground truth establishment, expert qualifications, or adjudication methods for the clinical performance study.
• Training set details: No information on the training data size or how its ground truth was established.
• MRMC study: There's no mention of a human-in-the-loop study comparing human readers with and without AI assistance.
• Standalone performance: While it alludes to "ECG algorithm performance," it doesn't explicitly state the results of a standalone algorithm performance study.

Therefore, based solely on the provided text, I cannot create the table of acceptance criteria and reported performance, nor can I fully describe the study in the detail you requested.

The document states: "Performance testing verifies that the RX-1 mini Rhythm Express RCMS meets performance specifications." and "Performance testing data demonstrate that the subject device is as safe, and as effective, as the predicate device." This implies that such data exists and was submitted to the FDA, but it is not included in this public-facing summary.

To meet your request, one would typically need access to the full 510(k) submission, which would include detailed study reports, statistical analysis plans, and performance data.

Ask a specific question about this device