(118 days)
The clue medical and clue medical BASIC are handheld, battery operated single channel electrocardiographs intended for recording and transmitting ECG data by patients who are concerned about their heart rhythm. The clue medical BASIC allow the patient to record their ECG data into the device memory and transmit it for display by healthcare professionals.
Specifically, the clue medical and clue medical BASIC are intended for patients that are concerned about their heart rhythm or have experienced the following symptoms that are suggestive of abnormal heart rhythm:
Skipped beats Pounding heart (palpitations)
History of arrhythmia
The clue medical and clue medical BASIC ECG data is intended to be used by a licensed health care practitioner. These measurements are not intended for any specific clinical diagnosis. The clinical significance must be determined by the physician.
The clue medical is an handheld battery operated single-channel ECG recorder featuring four fixed electrodes on the back of the device, an ECG lead connector, an IrDA interface and one single button to record and store up to ten ECG recordings with 30 seconds or two minutes duration. The stored ECG tests are processed into a printable Portable Document Format (pdf) that can be transmitted two ways. The pdf can be transmitted via IrDA to an IrDA capable local PC or printer. If the receiving device is not IrDA capable, an optional IrDA USB stick is provided with the clue medical. The pdf file can then be saved, sent, displayed or printed. Alternatively, the pdf can be transmitted via an IrDA capable cell phone directly to the Telovital server for storage.
The clue medical BASIC is identical to the clue medical in design. The only difference is that the clue medical BASIC does not provide the added capability of sending the ECG data via cell phone directly to the Telovital server, it is only capable of IrDA transmission to a local PC or printer.
The provided text describes the "clue medical and clue medical BASIC Telemedical Systems" and states that "Performance Testing" was conducted to meet several IEC standards. However, it does not provide detailed acceptance criteria with specific thresholds or reported device performance metrics in a quantitative manner that would allow for the creation of a table.
Here's an analysis based on the available information:
1. Table of Acceptance Criteria and Reported Device Performance:
The document states that the devices "have been tested to meet all of the following standards," implying that compliance with these standards represents the acceptance criteria. However, it does not provide any quantitative performance results from these tests. Therefore, a table with specific performance metrics cannot be generated from the given text.
| Acceptance Criteria (Standard Compliance) | Reported Device Performance |
|---|---|
| IEC 60601-1: General Requirements for Safety | Compliant (Stated) |
| IEC 60601-1-1: Safety Requirements for Medical Electrical Systems | Compliant (Stated) |
| IEC 60601-1-2: General Requirements for Safety | Compliant (Stated) |
| IEC 60601-2-25: Particular Requirements for the Safety of Electrocardiographs | Compliant (Stated) |
| IEC 60601-2-47: Particular requirements for safety, including performance, for ambulatory electrocardiographic systems | Compliant (Stated) |
| IEC 60601-1, subclause 56.3(c) for electrode leadwires | Compliant (Stated) |
2. Sample Size and Data Provenance for the Test Set:
The document mentions "Performance Testing" but does not specify any sample size for a test set (e.g., number of patients, number of ECG recordings). There is also no information regarding data provenance (e.g., country of origin, retrospective or prospective nature).
3. Number of Experts and Qualifications for Ground Truth:
The document does not mention the use of experts to establish ground truth for any test set or the qualifications of such experts. The study described focuses on compliance with electrical and safety standards, not on clinical performance evaluated by human experts against a ground truth.
4. Adjudication Method for the Test Set:
Since there is no mention of a test set being evaluated by experts or any clinical outcome, there is no adjudication method described.
5. Multi-Reader Multi-Case (MRMC) Comparative Effectiveness Study:
No Multi-Reader Multi-Case (MRMC) comparative effectiveness study was done or mentioned. The submission describes compliance with technical standards for an electrocardiograph and its electrical safety, not a study evaluating human reader performance with or without AI assistance. The device is a "single channel electrocardiograph intended for recording and transmitting ECG data," not an AI-powered interpretation system.
6. Standalone (Algorithm Only) Performance Study:
No standalone (algorithm only) performance study was conducted or described in the provided text. The device itself is hardware for recording ECG data; it doesn't appear to have an independent algorithm for interpretation (beyond potentially saving it as a PDF for healthcare professionals). The output is intended to be used by a "licensed health care practitioner" for determination of clinical significance.
7. Type of Ground Truth Used:
The study referenced is focused on compliance with electrical safety and performance standards (e.g., IEC 60601 series), not clinical diagnostic accuracy. Therefore, the "ground truth" for this "study" would be the specifications and requirements outlined in those standards, rather than expert consensus, pathology, or outcomes data.
8. Sample Size for the Training Set:
No training set is mentioned or implied as the device is not described as utilizing machine learning or artificial intelligence that would require a training set.
9. How Ground Truth for the Training Set Was Established:
Since there is no training set, this question is not applicable.
§ 870.2340 Electrocardiograph.
(a)
Identification. An electrocardiograph is a device used to process the electrical signal transmitted through two or more electrocardiograph electrodes and to produce a visual display of the electrical signal produced by the heart.(b)
Classification. Class II (performance standards).