Cardiart Electronic Stethoscope Model DS101 Omni-Steth Electronic Stethoscope Model Omni-Steth
Applicant
Imediplus, Inc.
Product Code
DQD · Cardiovascular
Decision Date
Sep 11, 2018
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 870.1875
Device Class
Class 2
Attributes
Pediatric, 3rd-Party Reviewed
Indications for Use
The Electronic Stethoscope DS101 is intended for the detection, and recording of sounds from the heart, lungs, anterior and posterior chest, abdomen, neck, limbs, arteries, veins and other internal organs with selective frequency ranges. And the stethoscope chest piece is designed for use with child, adolescent and adult patients. It is used for any subject undergoing a physical examination and intended only for medical diagnostic purposes in clinic or hospital. The Electronic Stethoscope Omni-Steth is intended for the detection, amplification and recording of sounds from the heart, lungs, anterior and posterior chest, abdomen, neck, limbs, arteries, veins and other internal organs with selective frequency ranges. And the stethoscope chest piece is designed for use with child, adolescent and adult patients. It is used for any subject undergoing a physical examination and intended only for medical diagnostic purposes in clinic or hospital.
Device Story
Electronic stethoscopes (DS101, Omni-Steth) capture acoustic signals from internal organs via chest piece; signals amplified/filtered by digital signal processor; output to bilateral headset and OLED display. Used by clinicians (physicians, nurses, etc.) in clinics/hospitals for physical exams. Features include three filter modes (Bell 20-200Hz, Diaphragm 100-500Hz, Wide 20-1000Hz), heart rate detection, and phonocardiogram display. Bluetooth connectivity enables raw audio data exchange with external PCs for storage/review via DS101-DM software. Device aids clinical decision-making by providing audible and visual representations of internal sounds. Benefits include improved auscultation efficiency and documentation of patient findings.
Clinical Evidence
No clinical data. Substantial equivalence supported by bench testing, including electrical safety, EMC, wireless coexistence, biocompatibility (ISO 10993-1), and usability testing (15 physicians, 15 nurses). Heart rate detection performance verified against predicates within 30-180 bpm range. Audio performance verified equivalent to predicates for frequencies below 1 kHz and across specified filter modes.
Technological Characteristics
Materials: Silicone diaphragm, brass alloy headset. Power: 2x AAA 1.2V batteries. Connectivity: Bluetooth wireless, standalone operation. Form factor: Handheld with 1.46" OLED display. IPX4 water resistance. Standards: ANSI/AAMI ES 60601-1, IEC 60601-1-2, IEC 60529, ANSI C63.27. Software: Moderate level of concern.
Indications for Use
Indicated for child, adolescent, and adult patients undergoing physical examination for medical diagnostic purposes in clinical or hospital settings. Used for detection, amplification, and recording of internal body sounds (heart, lungs, abdomen, etc.).
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.
3M™ LITTMANN® ELECTRONIC STETHOSCOPE MODEL 3200 (K083903)
Submission Summary (Full Text)
{0}------------------------------------------------
Image /page/0/Picture/0 description: The image contains the logo of the U.S. Food and Drug Administration (FDA). On the left is the Department of Health & Human Services logo. To the right of that is the FDA logo, which is a blue square with the letters "FDA" in white. To the right of the blue square is the text "U.S. FOOD & DRUG ADMINISTRATION" in blue.
September 11, 2018
Imediplus, Inc. % Dave Yungvirt CEO Third Party Review Group, LLC The Old Station House 24 Lackawanna Place Millburn, New Jersey 07041
Re: K182196
Trade/Device Name: Cardiart Electronic Stethoscope: Model DS101; Omni-Steth Electronic Stethoscope: Model Omni-Steth Regulation Number: 21 CFR 870.1875 Regulation Name: Stethoscope Regulatory Class: Class II Product Code: DQD Dated: August 11, 2018 Received: August 14, 2018
Dear Dave Yungvirt:
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. Although this letter refers to your product as a device, please be aware that some cleared products may instead be combination products. The 510(k) Premarket Notification Database located at https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfpmn/pmn.cfm identifies combination product submissions. 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. Please note: CDRH does not evaluate information related to contract liability warranties. We remind you, however, that device labeling must be truthful and not misleading.
If your device is classified (see above) into either class II (Special Controls) or class III (PMA), it may be subject to 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.
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
{1}------------------------------------------------
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 of medical device-related adverse events) (21 CFR 803) for devices or postmarketing safety reporting (21 CFR 4, Subpart B) for combination products (see https://www.fda.gov/CombinationProducts/GuidanceRegulatoryInformation/ucm597488.htm); good manufacturing practice requirements as set forth in the quality systems (QS) regulation (21 CFR Part 820) for devices or current good manufacturing practices (21 CFR 4, Subpart A) for combination products; and, if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR 1000-1050.
Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21 CFR 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 comprehensive regulatory information about medical devices and radiation-emitting products, including information about labeling regulations, please see Device Advice (https://www.fda.gov/MedicalDevices/DeviceRegulationandGuidance/) and CDRH Learn (http://www.fda.gov/Training/CDRHLearn). Additionally, you may contact the Division of Industry and Consumer Education (DICE) to ask a question about a specific regulatory topic. See the DICE website (http://www.fda.gov/DICE) for more information or contact DICE by email (DICE@fda.hhs.gov) or phone (1-800-638-2041 or 301-796-7100).
Sincerely.
# Stephen C. Browning -S5
for Bram D. Zuckerman, M.D. Director Division of Cardiovascular Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
{2}------------------------------------------------
## Indications for Use
510(k) Number (if known) K182196
### Device Name
Cardiart Electronic Stethoscope: Model DS101 Omni-Steth Electronic Stethoscope: Model Onmi-Steth
### Indications for Use (Describe)
The Electronic Stethoscope DS101 is intended for the detection, and recording of sounds from the heart, lungs, anterior and posterior chest, abdomen, neck, limbs, arteries, veins and other internal organs with selective frequency ranges. And the stethoscope chest piece is designed for use with child, adolescent and adult patients. It is used for any subject undergoing a physical examination and intended only for medical diagnostic purposes in clinic or hospital.
The Electronic Stethoscope Omni-Steth is intended for the detection, amplification and recording of sounds from the heart, lungs, anterior and posterior chest, abdomen, neck, limbs, arteries, veins and other internal organs with selective frequency ranges. And the stethoscope chest piece is designed for use with child, adolescent and adult patients. It is used for any subject undergoing a physical examination and intended only for medical diagnostic purposes in clinic or hospital.
Type of Use (Select one or both, as applicable)
| Prescription Use (Part 21 CFR 801 Subpart D) | ☑ |
|----------------------------------------------|---|
| Over-The-Counter Use (21 CFR 801 Subpart C) | ☐ |
### CONTINUE ON A SEPARATE PAGE IF NEEDED.
This section applies only to requirements of the Paperwork Reduction Act of 1995.
### *DO NOT SEND YOUR COMPLETED FORM TO THE PRA STAFF EMAIL ADDRESS BELOW.*
The burden time for this collection of information is estimated to average 79 hours per response, including the time to review instructions, search existing data sources, gather and maintain the data needed and complete and review the collection of information. Send comments regarding this burden estimate or any other aspect of this information collection, including suggestions for reducing this burden, to:
> Department of Health and Human Services Food and Drug Administration Office of Chief Information Officer Paperwork Reduction Act (PRA) Staff PRAStaff@fda.hhs.gov
"An agency may not conduct or sponsor, and a person is not required to respond to, a collection of information unless it displays a currently valid OMB number."
{3}------------------------------------------------
### 510(k) Number: K182196
#### SUBMITTER: -
| Submitter's Name: | IMEDIPLUS INC. |
|-------------------|-----------------------------------------------------------------------------------|
| Address: | 2F, 12, ShengYi Rd. Sec. 2, Chupei City, Hsinchu County<br>30261, Taiwan (R.O.C.) |
| Telephone: | +886-3-658-7700 |
| Contact Name: | Moriah Hsieh |
| Telephone: | +886-3-658-7700 ext #325 |
| Fax: | +886-3-658-9535 |
| Email: | moriah.hsieh@imediplus.com |
| Date Prepared: | 24 August 2018 |
## II. DEVICE:
| Trade Name and<br>Model: | Cardiart Electronic Stethoscope: Model DS101 and<br>Omni-Steth Electronic Stethoscope: Model Onmi-Steth |
|---------------------------|---------------------------------------------------------------------------------------------------------|
| Common or Usual<br>Name: | Electronic Stethoscope |
| Classification<br>Number: | 870.1875 |
| Classification Name: | Stethoscope |
| Product Code: | DQD |
| Product Class: | II |
| Classification Panel: | Cardiovascular |
## III. PREDICATE DEVICE:
| | Device Name | Manufacturer | Classification |
|-----------------------------------|----------------------------------------------------|-------------------|-----------------|
| Primary<br>Predicate<br>K173663 | IMEDIPLUS Electronic Stethoscope<br>DS3011A | IMEDIPLUS<br>INC. | DQD<br>870.1875 |
| Secondary<br>Predicate<br>K083903 | 3M™ LITTMANN® ELECTRONIC<br>STETHOSCOPE MODEL 3200 | 3M COMPANY | DQD<br>870.1875 |
This Secondary Predicate K083903 with the same intended use, classification and product code as the proposed device is included to support the Bluetooth wireless technology that is implemented in the subject device for which scientific methods exists to evaluate this new technology as outlined in the FDA guidance "Radio Frequency Wireless Technology in Medical Devices" (Aug 14, 2013).
## IV. DEVICE DESCRIPTION
The proposed Electronic Stethoscopes Models DS101 and Omni-Steth detect and
{4}------------------------------------------------
display the sounds from the heart, lungs, anterior/posterior chest, abdomen, neck, limbs, arteries, veins and other internal organs from a patient's body. After amplifying and filtering, the sounds are also sent to the user's ears bilaterally through the active speaker embedded at the bottom of the stethoscopes. Sound processing is conducted with the aid of a digital signal processor. Power to the device is provided by two AAA1.2V batteries. The one-hand operable user interface consists of a full-color OLED display, the Record button, arrow keys, the OK button, and a tube connector to output sounds to the headset consisting of tubes and ear tips.
The proposed devices can detect and display an acoustic based heart rate when presented with consistent heart sounds.
In addition, using a Bluetooth wireless link, the proposed stethoscopes can exchange raw audio data with external devices such as personal computers.
Note: The models DS101 and Omni-Steth are standalone devices and do not require Bluetooth data transfer to fulfill their intended use.
The differences between the proposed stethoscope models DS101 and Omni-Steth are cosmetic: specifically, the design of top housing and keyboard layout. The OLED Display information are identical.
| Trade Name | CaRDIART Electronic Stethoscope | Omni-Steth Electronic Stethoscope |
|----------------------|----------------------------------------------------------|------------------------------------------------------------|
| Model Name | DS101 | Omni-Steth |
| Device<br>Appearance | Image: Cardiart Electronic Stethoscope Device Appearance | Image: Omni-Steth Electronic Stethoscope Device Appearance |
| Keyboard<br>layout | Image: Cardiart Electronic Stethoscope Keyboard layout | Image: Omni-Steth Electronic Stethoscope Keyboard layout |
{5}------------------------------------------------
#### V. INTENDED USE AND INDICATIONS FOR USE
### Cardiart Electronic Stethoscope (Model DS101)
The Electronic Stethoscope DS101 is intended for the detection, amplification and recording of sounds from the heart, lungs, anterior and posterior chest, abdomen, neck, limbs, arteries, veins and other internal organs with selective frequency ranges. And the stethoscope chest piece is designed for use with child, adolescent and adult patients. It is used for any subject undergoing a physical examination and intended only for medical diaqnostic purposes in clinic or hospital.
### Omni-Steth Electronic Stethoscope (Model Omni-Steth)
The Electronic Stethoscope Omni-Steth is intended for the detection, amplification and recording of sounds from the heart, lungs, anterior and posterior chest, abdomen, neck, limbs, arteries, veins and other internal organs with selective frequency ranges. And the stethoscope chest piece is designed for use with child, adolescent and adult patients. It is used for any subject undergoing a physical examination and intended only for medical diagnostic purposes in clinic or hospital.
## VI. COMPARISON OF TECHNOLOGICAL CHARACTERISTICS WITH THE PREDICATE DEVICE
The technology of the proposed electronics stethoscopes Models DS101 and Omni-Steth are identical to the predicate IMEDIPLUS electronic stethoscope Model DS301 1A in terms of principle of operation, materials, design, user interface, frequency ranges, and auscultation organs. The following include the modifications to the previous design implemented in the proposed stethoscopes:
- 1. New PCB (Printed Circuit Board) layout
- 2. New housing with water resistance (IPX4)
- 3. Rearrangement of the information on OLED display
- 4. Data transmission via Bluetooth
- 5. Two AAA 1.2V batteries as power supply
- 6. Display of Phonocardiogram
{6}------------------------------------------------
## K182196
## Page 4 of 11
## Comparison table
| Item<br>S | Comparis<br>on Items | Subject Device | | Secondary Predicate<br>Device | Primary Predicate<br>Device | Same/Similar<br>ar<br>Different<br>/New |
|-------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------|
| 1 | Regulatory<br>Regulatory<br>No<br>Classification | CARDIART Electronic<br>Stethoscope (DS101) | Omni-Steth Electronic<br>Stethoscope (Omni-Steth) | 3M 3200 (K083903) | DS3011A (K173663) | Same |
| 2 | Power Source<br>Batteries<br>type | Two AAA battery | Two AAA battery | One AA battery | One NP-120 Lithium<br>battery | Similar with<br>3M 3200 ;<br>Different<br>from<br>DS3011A |
| | Battery<br>Life | > 7 Hours | > 7 Hours | 50-60 Hours | 24 Hours | Different |
| | Special<br>Adaptors | No | No | No | Yes | Same with<br>3M 3200 ;<br>Different<br>from<br>DS3011A |
| 3 | Features<br>Binaural<br>headset | Yes | Yes | Yes | Yes | Same |
| | Chest-<br>piece<br>Technology | Single Sided | Single Sided | Single Sided | Single Sided | Same |
| | Chest-<br>piece<br>Weight | 18g | 18g | 98g | 69g | Different |
| | Clinical<br>Area | Auscultation | Auscultation | Auscultation | Auscultation | Same |
| | Diaphragm<br>Diameter | 4.7cm | 4.7cm | 5.1cm | 4.1cm | Similar with<br>3M 3200<br>and |
| | | | | | | DS3011A |
| | Diaphragm<br>Material | Silicone | Silicone | Polyurethane-Coated<br>Silicone | Silicone | Same with<br>DS3011A;<br>Different<br>from 3M<br>3200 |
| | Ear-tips<br>Type | Soft Sealing | Soft Sealing | Soft Sealing | Soft Sealing | Same |
| | Headset<br>Material | Brass alloy to electroplate | Brass alloy to electroplate | Wide diameter<br>aerospace alloy /<br>Anodized aluminum | Brass alloy to<br>electroplate | Same with<br>DS3011A |
| | Length | 81 cm | 81 cm | 69 cm | 77 cm | Similar with<br>DS3011A |
| | Net Weight | 214g | 213g | 185 g | 304 g | Different |
| | Tube Color | Black · Burgundy · Navy Blue | Black · Burgundy · Navy Blue | Black · Burgundy · Navy<br>Blue | Black · Burgundy · Navy<br>Blue | Same |
| 4 | Intended Use | | | | | |
| | Intended<br>Use | The CARDIART Electronic<br>Stethoscope is intended for<br>the detection, amplification<br>and recording of sounds from<br>the heart, lungs, anterior and<br>posterior chest, abdomen,<br>neck, limbs, arteries, veins<br>and other internal organs with<br>selective frequency ranges.<br>The stethoscope chest-piece<br>is designed for use with child,<br>adolescent and adult patients.<br>It is used for any subject<br>undergoing a physical<br>examination and intended only<br>for medical diagnostic<br>purposes in clinic or hospital. | The Omni-Steth Electronic<br>Stethoscope is intended for<br>the detection, amplification<br>and recording of sounds from<br>the heart, lungs, anterior and<br>posterior chest, abdomen,<br>neck, limbs, arteries, veins<br>and other internal organs with<br>selective frequency ranges.<br>The stethoscope chest-piece<br>is designed for use with child,<br>adolescent and adult patients.<br>It is used for any subject<br>undergoing a physical<br>examination and intended only<br>for medical diagnostic<br>purposes in clinic or hospital. | The 3M™ Littmann®<br>Electronic Stethoscope<br>Model 3200 is intended<br>for medical diagnostic<br>purposes only. It may be<br>used for the detection<br>and amplification of<br>sounds from the heart,<br>lungs, arteries, veins,<br>and other internal<br>organs with the use of<br>selective frequency<br>ranges. It can be used<br>on any person<br>undergoing a physical<br>assessment. | The IMEDIPLUS<br>Electronic Stethoscope<br>DS3011A is intended for<br>the detection,<br>amplification and<br>recording of sounds<br>from the heart, lungs,<br>anterior and posterior<br>chest, abdomen, neck,<br>limbs, arteries, veins<br>and other internal<br>organs with selective<br>frequency ranges. And<br>the stethoscope chest-<br>piece is designed for<br>use with child,<br>adolescent and adult<br>patients. It is used for<br>any subject undergoing<br>a physical examination<br>and intended only for | Same with<br>DS3011A;<br>similar to<br>3M 3200.<br>The<br>population<br>is specific<br>to child,<br>adolescents<br>and adults. |
| | | | | | medical diagnostic<br>purposes in clinic or<br>hospital. | |
| 5 | Functional | | | | | |
| | Display<br>Screen | OLED 1.46" Full Color | OLED 1.46" Full Color | LCD Monochrome | OLED 1.46" Full Color | Same with<br>DS3011A;<br>similar to<br>3M 3200. |
| | Barcode<br>Reader | No | No | No | Yes | Same with<br>3M 3200 |
| | Three<br>Filter<br>Modes | Yes | Yes | Yes | Yes | Same |
| | Frequency<br>Range of<br>Filter Mode | Bell (20-200 Hz), Diaphragm<br>(100-500 Hz) and Wide (20-<br>1000Hz) | Bell (20-200 Hz), Diaphragm<br>(100-500 Hz) and Wide (20-<br>1000Hz) | Bell (20-200 Hz),<br>Diaphragm (100-500<br>Hz) and Extend range<br>(20-2000 Hz) | Bell (20-200 Hz),<br>Diaphragm (100-500<br>Hz) and Wide (20-<br>1000Hz) | Same with<br>DS3011A ;<br>Similar to<br>3M 3200 |
| | Human<br>Machine<br>Interface | One-hand user interface for<br>auscultation position selection,<br>recording, and function<br>selection. | One-hand user interface for<br>auscultation position selection,<br>recording, and function<br>selection. | Yes | One-hand user interface<br>for patient's ID<br>scanning, auscultation<br>position selection,<br>recording, and function<br>selection. | Similar with<br>DS3011A |
| | Recording<br>Number of<br>the sound<br>track | Yes ( File name:<br>Year+Month+Hour+Minute+Se<br>cond) | Yes ( File name:<br>Year+Month+Hour+Minute+Se<br>cond) | Yes (File name: 00x)…
Predicate graph will load when search results are available.
Embedding visualization will load when search results are available.
PDF viewer will load when search results are available.
Loading panels...
Select an item from Submissions
Click any panel, subpart, regulation, product code, or device to see details here.
Section Matches
Results will appear here.
Product Code Matches
Results will appear here.
Special Control Matches
Results will appear here.
Loading collections...
Loading
My Alerts
You will receive email notifications based on the filters and frequency you set for each alert.
Sort by:
Create Alert
Search Filters
Agent Token
Create a read-only bearer token for Claude, ChatGPT, or other agents that can call HTTP APIs.
Copy this now. It will not be shown again.
Connected apps
Apps you authorized through browser sign-in. Disconnecting revokes their access immediately.
Learn the FDA Browser
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.