K100531 · Hd Medical Services (India) Pvt.Ltd · DQD · Jul 21, 2010 · Cardiovascular
Device Facts
Record ID
K100531
Device Name
VISCOPE, MODEL 100P,100S
Applicant
Hd Medical Services (India) Pvt.Ltd
Product Code
DQD · Cardiovascular
Decision Date
Jul 21, 2010
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 870.1875
Device Class
Class 2
Indications for Use
The ViScope Electronic Stethoscope is a patented electronic stethoscope with an integrated graphics display to show amplified heart sounds as phonocardiograms. It is intended for use as a diagnostic aid as part of a physical assessment of a patient by health care professionals or other individuals trained to administer emergency first aid or otherwise care for a patient. It can be used for the amplification of heart, lung, blood vessel, enteral and other body sounds.
Device Story
ViScope is an electronic stethoscope providing audio-visual auscultation. It captures body sounds (heart, lung, vessel, enteral) via switchable frequency modes (Bell/Dia/wide). The device features an integrated graphics display showing real-time phonocardiograms (VPCG) to aid clinicians in assessment. It includes a memory function to save and review waveforms. Two models exist: 100S (standalone) and 100P (includes PC connectivity). The 100P model allows data download to a PC for viewing, recording 10-second intervals, and performing detailed analysis using software tools like zoom and calipers. Clinicians use the visual output to supplement auditory findings during physical exams or triage. The device assists in identifying and documenting physiological sounds, potentially improving diagnostic accuracy and patient monitoring.
Clinical Evidence
No clinical data provided. Substantial equivalence is based on bench testing and comparison of technological characteristics to predicate devices.
Technological Characteristics
Electronic stethoscope with integrated graphics display for phonocardiogram visualization. Features switchable frequency modes (Bell/Dia/wide). Model 100P includes PC connectivity for data download, recording, and analysis. Software tools include zoom, calipers, and playback. Powered by internal electronics; no specific materials or energy standards cited.
Indications for Use
Indicated for use by healthcare professionals or trained first aid providers as a diagnostic aid during physical assessment for the amplification and visualization of heart, lung, blood vessel, enteral, and other body sounds.
Regulatory Classification
Identification
Manual stethoscope: A mechanical device used to project the sounds associated with the heart, arteries, and veins and other internal organs. Electronic stethoscope: An electrically amplified device used to project the sounds associated with the heart, arteries, and veins and other internal organs.
Special Controls
*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.
Predicate Devices
CADI Tech AG CADIscope electronic ECG Stethoscope (K990809)
3M Healthcare Littman Electronic Stethoscope, Model 3200 with Zargis Sethassist Software (K083903, K090493)
Submission Summary (Full Text)
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KIDOS31
HD Medical Services ViScope Electronic Stethoscope Original Premarket 510(k) Notification Summary of Safety and Effectiveness
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HD Medical Services (India) Private Ltd
# 48, Industrial Estate IT Highway, Perungudi Chennai, 600096, India Tel: +91 44 4215 4771 Fax: +91 44 4215 4772 www.hdmedicalgroup.com
## FDA CDRH DMC
1/4
ນັ້ນ 2 2 201910 Received
# Summary of Safety and Effectiveness ViScope Electronic Stethoscope
## SUBMITTER INFORMATION
Company Name:
HD Medical Services (India) Pvt. LTD.
Company Address:
No. 48, Perungudi Industrial Estate IT Highway Perungudi, Chennai ZIP - 600096
Company Phone:
+91 44 4215 4771
Company Fax:
+91 44 4215 4772
Contact Persons:
S. Subramaniam Manager- Quality Management
January 26, 2010 Date Summary Prepared:
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જેવા
Original Premarket 510(k) Notification Summary of Safety and Effectiveness
### DEVICE IDENTIFICATION
| Common or Usual Name: | Electronic Stethoscope, Cardiogram |
|-------------------------|-------------------------------------|
| Trade/Proprietary Name: | ViScope |
| Classification: | Class II, 21 CFR 870.1875, 870.2390 |
| Product Code: | DQD, DQC |
| Performance Standard : | None |
#### PREDICATE DEVICES:
- CADI Tech AG CADIscope electronic ECG Stethoscope, K990809 Dated 09/21/199 .
- 3M Healthcare Littman Electronic Stethoscope, Model 3200 with Zargis Sethassist . Software, K083903 Dated 07/15/09 and K090493 Dated 08/07/2009
#### DEVICE DESCRIPTION
The ViScope Electronic Stethoscope (ViScope) is an audio-visual auscultation tool for quick and effective auscultation of a patient to aid the healthcare professional as necessary during patient care and/or for triage purposes. The ViScope is a Visual Phono Cardio Gram (VPCG) with visual display on which the heart sounds are represented as waveforms, which medical practitioners recognize and understand. The ViScope, similar to most electronic stethoscopes, has switchable modes (Bell/Dia/wide) for hearing heart, lung, blood vessel, enteral and other body sounds with different frequency ranges. In addition, the ViScope has an incorporated 'memory' feature that provides the user with the ability to review the saved 4 waveforms. The user also has the option to delete each waveform individually.
The ViScope comes in two models. the ViScope 100S and the ViScope 100P. The models are the same device (design, technology, operation, manufacture, use, labeling, etc). The only difference is that the ViScope 100P has the ability to download data to a PC or printer, the ViScope 100S does not offer this download feature. The ViScope 100P is supported by software that can be installed in a PC. The user can see the real-time waveforms on the PC monitor (as live data) and record in 10 second intervals. The software allows the user with an option of selecting the entire 10 second signal or select
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any 3.5 seconds within the 10 second signal for a more detailed view. These selected signals can be saved with patient name, auscultation region, along with age & sex. The software tools such as zoom, calipers, and player functions can be used on the saved signals for further analysis. The saved signals can be printed from the PC or directly from the ViScope 100P.
## INDICATIONS FOR USE
The ViScope is a patented electronic stethoscope with an integrated graphics display to show amplified heart sounds as phonocardiograms. It is intended for use as a diagnostic aid as part of a physical assessment of a patient by health care professionals or other individuals trained to administer emergency first aid or otherwise care for a patient. It can be used for the amplification of heart, lung, blood vessel, enteral and other body sounds.
#### SUBSTANTIAL EQUIVALENCE
The ViScope is substantially equivalent to the following predicate devices:
| Predicate | Manufacturer | 510(k) No. | Date<br>Cleared | SE Component |
|------------------------------------------------------------------------------------------------|-----------------|--------------------|----------------------|------------------------------------------------------------------------|
| Device | | | | |
| CADIscope<br>Electronic ECG<br>Stethoscope | CADI Tech<br>AG | K990809 | 9/21/1999 | -Indications for Use<br>-Visual Display<br>-General Operation |
| 3M Littman *<br>Model 3200<br>Electronic<br>Stethoscope with<br>Zargis Sethassist<br>Software* | 3M Healthcare | K083903<br>K090493 | 07/15/09<br>08/07/09 | -Indication for Use<br>-Download<br>capabilities<br>-General Operation |
* The two devices are sold as a package.
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KL00531
પ્રીપ્
HD Medical Services ViScope Electronic Stethoscope Original Premarket 510(k) Notification Summary of Safety and Effectiveness
## TECHNOLOGICAL CHARACTERISTICS
A comparison of the technological characteristics of the ViScope and the predicate devices has been performed. The results of this comparison demonstrate that the ViScope is substantially equivalent to the marketed predicate devices in technological characteristics and performance requirements.
PERFORMANCE DATA and CONCLUSION: The performance data indicate that the Viscope meets specified requirements, and is substantially equivalent to the predicate devices.
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Image /page/4/Picture/1 description: The image shows the logo for the Department of Health & Human Services USA. The logo features a stylized eagle with three lines representing its wings. The words "DEPARTMENT OF HEALTH & HUMAN SERVICES USA" are arranged in a circular pattern around the eagle.
Food and Drug Administration 10903 New Hampshire Avenue Document Control Room -WO66-G609 Silver Spring, MD 20993-0002
HD Medical Services PVT., LTD. c/o Mr. William H. Murphy Murphy & Associates 11143 Twinleaf Way San Diego, CA 92131
JUL 2 1 2010
Re: K100531
Trade/Device Name: ViScope Electronic Stethoscope (models 100P and 100S)
Regulation Number: 21 CFR 870 1875 Regulation Number: 21 CFR 870.1875 Regulation Name: Electronic Stethoscope Regulatory Class: Class II (two) Product Code: DQD, DQC Dated: July 13, 2010 Received: July 14, 2010
Dear Mr. Murphy:
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 market aredicated a for use and in the enclosure) to legally marketed predicate devices marketed in indical 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.
devices that have been reclassified in accordance with the provisions of the Federa and Cosmetic Act (Act (Act that do not require approval of the Federal Food, Joug,
and Cosmetic Act (Act) that do not require approval of a premarket approval application (PM You may, therefore, market the device, subject to the general controls provisions (PMA),
You may, therefore, market the device, subject to the general controls provisions of general controls provisions of the Act include requirements for annual registration, if the Act.
devices, good manufacturing practice, lebeling, ond mail registration, listin devices, good manufacturing practice, labeling, and prohibitions against misbranding and
If your device is classified (see above) into either class II (Special Controls) or class III (PMA), it may be subject to addition (soc above) filio entrols) or class III (PMA)
may be subject to additional controls. Existing major regulations affective your device can be found in the Code of Federal Regulations, Title 21, Parts 800 to 898. In addition, FDA may publish further announcements, Thie 21, Parts 800 to 898. In addition
publish further announcements concerning your device in the Federal Register,
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Page 2 - Mr. William H. Murphy
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); medical device reporting (reporting of medical device-related adverse events) (21 CFR 803); 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.
If you desire specific advice for your device on our labeling regulation (21 CFR Part 801), please go to http://www.fda.gov/AboutFDA/CentersOffices/CDRH/CDRHOffices/ucm115809.htm for the Center for Devices and Radiological Health's (CDRH's) Office of Compliance. Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21CFR Part 807.97). For questions regarding the reporting of adverse events under the MDR regulation (21 CFR Part 803), please go to
http://www.fda.gov/MedicalDevices/Safety/ReportaProblem/default.htm for the CDRH's Office of Surveillance and Biometrics/Division of Postmarket Surveillance.
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 (301) 796-7100 or at its Internet address http://www.fda.gov/MedicalDevices/Resourcesfor You/Industry/default.htm.
Sincerely yours,
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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Original Premarket 510(k) Notification Indications for use
Image /page/6/Picture/3 description: The image shows a 3D rendering of an abstract shape. The shape is composed of rectangular and curved segments, creating an interlocking design. The color scheme appears to be grayscale, with variations in shading to emphasize the three-dimensional aspect of the structure. The overall impression is that of a modern, geometric sculpture.
#### HD Medical Services (India) Private Ltd
# 48, Industrial Estate IT Highway, Perungudi Chennai, 600096, India Tel: +91 44 4215 4771 Fax: +91 44 4215 4772 www.hdmedicalgroup.com
510(k) Number : K100531
Device Name: ViScope Electronic Stethoscope
JUL 21 2010
#### Indications for Use Statement:
The ViScope Electronic Stethoscope is a patented electronic stethoscope with an integrated graphics display to show amplified heart sounds as phonocardiograms. It is intended for use as a diagnostic aid as part of a physical assessment of a patient by health care professionals or other individuals trained to administer emergency first aid or otherwise care for a patient. It can be used for the amplification of heart, lung, blood vessel, enteral and other body sounds.
Prescription Use Yes AND (Part 21 CFR 801 Subpart D)
Over-The-Counter
(21 CFR 801
Over-The-Counter Use No (21 CFR 801 Subpart C)
(PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE IF NEEDED)
Concurrence of CDRH, Office of Device Evaluation (ODE)
| (Division Sign-Off) |
|------------------------------------|
| Division of Cardiovascular Devices |
| 510(k) Number | K100531 |
|---------------|---------|
|---------------|---------|
1. 27(
Page 4-1
Two short videos show you everything — or skip straight to the written tutorial if you'd rather read. You can reopen this any time from the Tutorial button in the top bar.
Part 1 — Search, results, and everyday workflows 16 min
Part 2 — Embeddings: the galaxy map 3 min
1. Search: exact and fuzzy
Type a phrase like "coronary artery calcification" into the search box. You get two kinds of results. Exact results match the literal phrase — prefix searches work ("coronary artery calcificati") but suffix searches do not. Fuzzy results match on the meaning and intent of your phrase rather than the exact words, and are sorted by relevance score. Hover over the Exact or Fuzzy badge on any row to see exactly why it matched.
Use the checkboxes above the results to narrow: SaMD keeps only software-only devices, AI / ML keeps only devices with AI.
Exact vs. fuzzy search: what's the difference?
Exact matches on the literal phrase (prefix search works, suffix does not). Fuzzy matches on the meaning and intent of the phrase rather than the exact words. Hover over the badge on any row to see why it matched.
You search "coronary artery calcification" and want only software devices with AI. What two filters do you apply?
Narrow by SaMD (software-only devices), then narrow by AI/ML (devices with AI).
2. The results table
Scroll right in the results table. The intended use is extracted for you — no need to open the PDF. The device story gives a high-level snapshot of what the device does and how it's used. The AI Performance sub-table shows each output name, acceptance criteria, observed values, and development/test dataset descriptions — the same format Innolitics uses for regulatory strategy outputs, and the fastest high-level fingerprint of an AI device. It is AI-generated but has been very reliable in practice.
Where do you find a device's intended use without opening the PDF?
Scroll right in the search results table. The intended use column is extracted for you; no need to dig into the 510(k) summary PDF.
What does the AI Performance sub-table show, and why is it useful?
Output name, acceptance criteria, observed values, development dataset description, and test dataset description. It's the same format we use for regulatory strategy output and Fast 510(k) input, and the fastest high-level fingerprint of an AI device. AI-generated but reliable in practice.
3. Judging fuzzy relevance
Fuzzy results trail off in relevance as you scroll. Use three signals to decide how far down to go: the fuzzy badge explanations, the intended use column, and whether your target output (e.g., Cobb angle) still appears in the AI Performance sub-table. Once it stops appearing, you're past the relevant zone. A top hit with a low score (~0.4) and a stretched explanation is a hint the closest predicates are far away — the project may be headed for De Novo. Note the fuzzy search is a pattern match: it doesn't handle negation ("not") well, and hardware devices can appear — filter by SaMD/AI ML to cut them.
How do you judge how far down fuzzy search results to go?
Use the relevancy signals: the fuzzy badge explanations, the intended use column, and whether the target output (e.g., Cobb angle) still appears in the AI Performance sub-table. Once it stops appearing, results are trailing off in relevancy.
4. Device detail page: chat and citations
Click a device name to open its detail page: device facts on the left, a chat window on the right. Ask something like "Describe the training data". The answer carries little citation bubbles — click one to jump to the highlighted passage in the source PDF, so you can verify every AI answer against the document. There's also a Download PDF button for sharing.
How do you verify an AI chat answer on the device detail page?
Click the citation bubbles to jump to the relevant highlight in the source document.
Reading rule for every project: how many summaries do you read in full?
At least the three most relevant 510(k) or De Novo summaries, in full. After that, use targeted chat questions to confirm your memory quickly. The tool supports this professional habit — it doesn't replace it.
5. Side-by-side comparison
Select multiple rows in the results table (aim for under ~10), then open the PDF Viewer tab. Ask one question — it goes to all selected devices in parallel, each with citations. This is the fastest way to compare and contrast devices: training data, PCCP scope, how they handled adding new scanners, and so on.
What does the side-by-side PDF viewer mode do?
Select multiple devices, open the PDF viewer tab, and ask one question (e.g., "Describe the training data"). It queries all selected devices simultaneously with citations, so you can compare and contrast quickly.
6. Collections
With rows selected, go to the Collections tab and create a labeled collection (e.g., "Cobb Angle Project"). Reload that selection any time — before a client call, pull up the collection and ask questions across all of its devices at once.
How do you save a set of selected devices for later use?
Select the rows, go to the Collections tab, and create a labeled collection (e.g., "Cobb Angle Project"). You can reload the selection anytime and carry it into the PDF viewer and other tabs that support selections.
7. Product codes and the regulations tree
Click a product code in the results to jump to it in the regulations tree — identification text, sibling product codes, and devices you can open in a PDF viewer on the right. Click a regulation number to see its identification, special controls, and related product codes. You can also search by product code or regulation number at the top of the tree. Always read the special controls if any exist for your device — it broadens your search and sharpens pre-kickoff research.
What can you do from the regulations tree view?
Browse product codes and regulation numbers, read the identification text and special controls, browse sibling product codes, open device PDFs on the right, and search by product code or regulation number at the top of the tree.
8. Chart view
Click Show Chart and segment by regulation number (or product code) to see which regulations dominate your result set. Clicking a regulation takes you into the regulations tree. Great for spotting that most matches are, say, hardware laparoscopic devices — a cue to go back and filter.
How do you see which regulations dominate a search result set?
Click "Show Chart" and segment by Regulation Number. Clicking a regulation takes you to the regulations tree.
9. The predicate graph
Open the Predicates tab for a family-tree view of predicate relationships. Click a node to trace its parents and children; selections from search carry over pre-selected. Commonly predicated devices are worth reading — a lot of people predicated them for a reason. The visual lineage is also handy on client calls, e.g. to show how a predicate family evolved and justify why your predicate still holds.
In the predicate graph, why are commonly predicated devices worth reading?
A lot of people predicated them for a reason. Clicking a node traces parents and children, and selections from search carry over pre-selected.
10. Embeddings: the galaxy map
The Embeddings tab plots every matching document in a 2-D "galaxy map" where semantically similar devices cluster together. Hover or click clusters to explore, and let AI label the clusters for you. Embeddings beat product codes for grouping: two devices can carry different product codes (LLZ vs. QIH) yet do the same thing — the embedding captures the meaning of the intended use and device story. This is also exactly how retrieval-augmented generation (RAG) works under the hood, and it makes a great visual on client calls.
Try it yourself
Head to the search page and work through a few of these AI/ML fuzzy searches to build intuition: perivascular fat on CT · aortic valve calcification opportunistic screening on noncontrast CT · breast cancer prediction on digital pathology slides · autism detection · gestational age prediction · a hearing aid that can also detect a pulse · foundation model based analysis of ECG · large language models · penetration test. Watch how the relevance scores, intended use, and AI Performance tables tell you when results stop being meaningful.