(163 days)
Signal is an electronic device intended to support the physician in the evaluation of heart sounds, lung sounds, bowel sounds and other acoustic signals in patients. The device allows for the recording of multiple, simultaneous acoustic signals and includes a single-lead electrocardiograph that produces a visual display of the electrocardiogram (ECG) on the PC monitor to enable the healthcare practitioner to synchronize the phonocardiogram with the beginning of the heart cycle. The ECG is not intended for diagnostic use. The device also allows the sharing of data through the Internet and provides a means to attach patient information to the stored sound files. Signal is intended for use by healthcare professionals only.
Signal™ is an electronic auscultation device intended to acquire, record, and display heart sounds and other body sounds. Signal includes a single-lead electrocardiograph to produce an ECG on the laptop monitor to enable the health care professional to synchronize the phonocardiogram with the beginning of the heart cycle. The device also allows the sharing of data through the Internet and provides a means to attach patient information to the stored sound files.
The provided text describes the Zargis Medical Corporation's Signal™ electronic stethoscope, but it does not contain the detailed information required to fill out all the columns in the requested table or answer all the specific questions about acceptance criteria and a study proving those criteria.
The 510(k) summary focuses on demonstrating substantial equivalence to predicate devices based on design, technological characteristics, indications for use, and performance characteristics. It outlines general categories of testing (biocompatibility, electrical safety/EMC, software verification/validation) and states that "All product specifications were met." However, it does not provide specific quantitative acceptance criteria or the results of a study designed to demonstrate those criteria were met in the way that would typically be expected for a detailed performance study.
Here's a breakdown of what can be extracted and what is missing:
1. Table of Acceptance Criteria and Reported Device Performance
Based on the provided text, specific quantitative acceptance criteria and detailed reported device performance are NOT available. The document generically states that "All product specifications were met" following non-clinical performance testing.
| Acceptance Criteria | Reported Device Performance |
|---|---|
| Not specified in the document | Not specified quantitatively in the document. The document only states that "All product specifications were met" and "Non-clinical performance testing has been conducted to demonstrate the performance of the Signal device and that it meets its intended use." Categories of testing mentioned include biocompatibility, electrical safety and EMC testing, and software verification and validation testing. |
2. Sample size used for the test set and the data provenance
- Sample size for test set: Not specified in the provided document.
- Data provenance: Not specified in the provided document (e.g., country of origin, retrospective or prospective). The document only mentions "Non-clinical performance testing."
3. Number of experts used to establish the ground truth for the test set and the qualifications of those experts
- Not applicable as no clinical study with expert-established ground truth is described. The testing mentioned is "non-clinical performance testing."
4. Adjudication method for the test set
- Not applicable as no clinical study with expert adjudication is described. The testing mentioned is "non-clinical performance testing."
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, a multi-reader multi-case (MRMC) comparative effectiveness study is not mentioned in the provided document. The device is described as "non-interpretive" and intended to "support the physician in the evaluation," implying it's a tool for obtaining data rather than an AI for interpretation.
6. If a standalone (i.e. algorithm only without human-in-the-loop performance) was done
- The document implies that the device itself (Signal™) was tested for its performance. However, there is no specific mention of an "algorithm only" standalone performance as would be done for an AI diagnostic algorithm detached from human use. The device is an electronic stethoscope that acquires, records, and displays sounds, and includes an ECG for synchronization; it's not described as having an interpretive algorithm that would be tested in a "standalone" fashion.
7. The type of ground truth used
- Given that the described testing is "non-clinical performance testing" for device specifications, the "ground truth" would likely refer to engineering specifications, reference standards, and established test protocols for electrical safety, biocompatibility, and software functionality, rather than clinical ground truth (e.g., pathology, expert consensus, outcomes data).
8. The sample size for the training set
- Not applicable/Not specified. The document describes a medical device (electronic stethoscope), not an AI algorithm that would typically require a "training set."
9. How the ground truth for the training set was established
- Not applicable/Not specified. As above, this document describes device testing, not AI algorithm training.
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Kd90493
AUG 0 7 2009
Section 5
510(k) Summary of Safety and Effectiveness
Signal™
Pursuant to §513(i)(3)(A) of the Food, Drug, and Cosmetic Act, Zargis Medical Corporation is required to submit with this Premarket Notification either an " ... adequate summary of any information respecting safety and effectiveness or state that such information will be made available upon request of any person." Zargis Medical chooses to submit a summary of information respecting safety and effectiveness.
| Trade Name: | Signal™ |
|---|---|
| Common Name: | Electronic Stethoscope and Phonocardiograph |
| Regulation Number: | 21 CFR 870.1875, 870.2390 |
| Classification Name: | Stethoscope, Electronic; Phonocardiograph |
| Product Code: | DQD, DQC |
| Regulatory Class: | Class II |
| Submitter Information: | Zargis Medical Corporation2 Research Way, 1st FloorPrinceton, NJ 08540Tel: 609.734.4747Fax: 203.547.6103 |
| Summary Prepared By: | John KallassyPresident/CEO |
| Date Prepared: | February 20, 2009 |
| Predicate Devices: | 1) CADIscope Electronic Stethoscope and Integrated ECG,K9908092) eStation Model DR200 Electronic Stethoscope, K001788 |
- Meditron II, thestethoscope system, K013725
Device Description: Signal™ is an electronic auscultation device intended to acquire, record, and display heart sounds and other body sounds. Signal includes a single-lead electrocardiograph to produce an ECG on the laptop monitor to enable the health care
Signal 510(k) February 20, 2009 Confidential
13
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professional to synchronize the phonocardiogram with the beginning of the heart cycle.
The device also allows the sharing of data through the Internet and provides a means to attach patient information to the stored sound files.
Intended Use: Signal is a noninyasive, non-interpretive, device indicated for the following:
Signal is an electronic device intended to support the physician in the evaluation of heart sounds, lung sounds, bowel sounds and other acoustic signals in patients. The device allows for the recording of multiple, simultaneous acoustic signals and includes a singlelead electrocardiograph that produces a visual display of the electrocardiogram (ECG) on the PC monitor to enable the healthcare practitioner to synchronize the phonocardiogram with the beginning of the heart cycle. The ECG is not intended for diagnostic use. The device also allows the sharing of data through the Internet and provides a means to attach patient information to the stored sound files. Signal is intended for use by healthcare professionals only.
Substantial Equivalence: The Signal device is similar in design/technological characteristics, indications for use, and performance characteristics to the currently cleared electronic stethoscopes cited above.
Safety and Performance: A comprehensive list of verification and validation testing was performed in accordance with Zargis' Design Control procedures.
Non-clinical performance testing has been conducted to demonstrate the performance of the Signal device and that it meets its intended use. Specifically, the Signal has been assessed for applicable biocompatibility testing, electrical safety and EMC testing, and software verification and validation testing. All product specifications were met.
Conclusion: Based upon the indications for use, technological characteristics and safety and performance testing, the Zargis Signal device has been shown to be substantially equivalent to the currently cleared predicate devices under the Federal Food, Drug, and Cosmetic Act.
Signal 510(k) February 20, 2009 Confidential
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DEPARTMENT OF HEALTH & HUMAN SERVICES
Image /page/2/Picture/1 description: The image shows the logo for the U.S. Department of Health & Human Services. The logo consists of a circular seal with the text "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" arranged around the perimeter. Inside the circle is a stylized symbol that resembles an abstract human figure or a caduceus, with three curved lines representing the body and a base that suggests movement or support.
Food and Drug Administration 10903 New Hampshire Avenue Document Control Room -WO66-0609 Silver Spring, MD 20993-0002
AUG 0 7 2009
Zargis Medical Corp. c/o Mr. John Kallassy CEO 2 Research Way, 1st Floor Princeton, NJ 08540
Re: K090493
Trade/Device Name: Signal™ Regulatory Number: 21 CFR 870.1875 Regulation Name: Electronic Stethoscope Regulatory Class: Class II (Two) Product Code: DOD Dated: July 31, 2009 Received: August 4, 2009
Dear Mr. Kallassy:
We have reviewed your Section 510(k) premarket notification of intent to market the device referenced above and have determined the device is substantially equivalent (for the indications for use stated in the enclosure) to legally marketed predicate devices marketed in interstate commerce prior to May 28, 1976, the enactment date of the Medical Device Amendments, or to devices that have been reclassified in accordance with the provisions of the Federal Food. Drug, and Cosmetic Act (Act) that do not require approval of a premarket approval application (PMA). You may, therefore, market the device, subject to the general controls provisions of the Act. The general controls provisions of the Act include requirements for annual registration, listing of devices, good manufacturing practice, labeling, and prohibitions against misbranding and adulteration.
If your device is classified (see above) into either class II (Special Controls) or class III (PMA), it may be subject to such additional controls. Existing major regulations affecting your device can be found in the Code of Federal Regulations. Title 21, Parts 800 to 898. In addition, FDA may publish further announcements concerning your device in the Federal Register.
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Page 2 - Mr. John Kallassy
Please be advised that FDA's issuance of a substantial equivalence determination does not mean that FDA has made a determination that your device complies with other requirements of the Act or any Federal statutes and regulations administered by other Federal agencies. You must comply with all the Act's requirements, including, but not limited to: registration and listing (21 CFR Part 807); labeling (21 CFR Part 801); good manufacturing practice requirements as set forth in the quality systems (QS) regulation (21 CFR Part 820); and if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR 1000-1050. This letter will allow you to begin marketing your device as described in your Section 510(k) premarket notification. The FDA finding of substantial equivalence of your device to a legally marketed predicate device results in a classification for your device and thus, permits your device to proceed to the market.
If you desire specific advice for your device on our labeling regulation (21 CFR Part 801), please contact the Office of Compliance at (240) 276-0120. Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21CFR Part 807.97). You may obtain other general information on your responsibilities under the Act from the Division of Small Manufacturers, International and Consumer Assistance at its toll-free number (800) 638-2041 or (240) 276-3150 or at its Internet address http://www.fda.gov/cdrh/industry/support/index.html.
Sincerely yours.
R. Lachner
Bram D. Zuckerman, M.D. Director Division of Cardiovascular Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
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8090493
Section 4
INDICATION FOR USE
510(k) Number (if known):
Not Assigned K090493
Signal™ Device Name:
Indications for Use:
Signal is an electronic device intended to support the physician in the evaluation of heart sounds, lung sounds, bowel sounds and other acoustic signals in patients. The device allows for the recording of multiple, simultaneous acoustic signals and includes a single-lead electrocardiograph that produces a visual display of the electrocardiogram (ECG) on the PC monitor to enable the healthcare practitioner to synchronize the phonocardiogram with the beginning of the heart cycle. The ECG is not intended for diagnostic use. The device also allows the sharing of data through the Internet and provides a means to attach patient information to the stored sound files. Signal is intended for use by healthcare professionals only.
Prescription Use: Jo X AND/OR
Over-The Counter Use:
(Per 21 CFR 801 Subpart D) ...................................................................................................................................................
(Per 21 CFR 801 SubpartC)
(PLEASE DO NOT WRITE BELOW THIS LINE -CONTINUE ON ANOTHER PAGE IF NEEDED)
Concurrence of CDRH, Office of Device Evaluation (ODE)
Duna R. Holmes
(Division Sign-Off) Division of Cardiovascular Devices
510(k) Number K090493
Signal 510(k) February 20, 2009
Confidential
§ 870.1875 Stethoscope.
(a)
Manual stethoscope —(1)Identification. A manual stethoscope is a mechanical device used to project the sounds associated with the heart, arteries, and veins and other internal organs.(2)
Classification. Class I (general controls). The device is exempt from the premarket notification procedures in subpart E of part 807 of this chapter subject to the limitations in § 870.9.(b)
Electronic stethoscope —(1)Identification. An electronic stethoscope is an electrically amplified device used to project the sounds associated with the heart, arteries, and veins and other internal organs.(2)
Classification. Class II (special controls). The device, when it is a lung sound monitor, is exempt from the premarket notification procedures in subpart E of part 807 of this chapter subject to the limitations in § 870.9.