K160636 · D R Burton Healthcare, LLC · BWF · Aug 3, 2016 · Anesthesiology
Device Facts
Record ID
K160636
Device Name
iPEP System and vPEP
Applicant
D R Burton Healthcare, LLC
Product Code
BWF · Anesthesiology
Decision Date
Aug 3, 2016
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 868.5690
Device Class
Class 2
Attributes
Therapeutic
Indications for Use
The D R Burton iPEP Therapy System or vPEP is intended for use as a Positive Expiratory Pressure (PEP) by patients capable of generating an exhalation flow of 10 lpm for 3-4 seconds and an Incentive Spirometer as an inspiratory, deep breathing positive exerciser. Intended for single-patient, multi-use. iPEP System for hospital and clinical settings vPEP for hospital, clinical, and home care setting
Device Story
iPEP System and vPEP are respiratory therapy devices. iPEP combines a volumetric incentive spirometer (up to 4000 cc) and an oscillatory PEP module; vPEP is a standalone PEP device. PEP module uses a flap valve/rocker mechanism to generate oscillations during exhalation; incentive spirometer uses a piston/ball to measure inspired volume during inhalation. Used in hospital, clinical, and home settings. Operated by patients under prescription. iPEP allows both therapies in one unit; PEP cartridge is removable for independent use (Pocket PEP). Healthcare providers use output to monitor patient inspiratory effort and airway clearance. Benefits include improved secretion clearance and prevention/reversal of atelectasis.
Clinical Evidence
No clinical testing performed. Evidence consists of comparative bench testing (PEP frequency, amplitude, pressure, and volumetric accuracy) and usability studies with 30 participants (15 lay users, 15 healthcare providers).
Indicated for patients requiring inspiratory exercise and PEP therapy who are capable of generating an exhalation flow of 10 lpm for 3-4 seconds.
Regulatory Classification
Identification
An incentive spirometer is a device that indicates a patient's breathing volume or flow and that provides an incentive to the patient to improve his or her ventilation.
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Food and Drug Administration 10903 New Hampshire Avenue Document Control Center - WO66-G609 Silver Spring, MD 20993-0002
August 3, 2016
D R Burton Healthcare LLC C/O Paul Dryden Consultant 3936 S Fields St Farmville, North Carolina 27828
Re: K160636
Trade/Device Name: iPEP System and vPEP Regulation Number: 21 CFR 868.5690 Regulation Name: Incentive Spirometer Regulatory Class: Class II Product Code: BWF Dated: July 2, 2016 Received: July 6, 2016
Dear Paul Dryden:
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. 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 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 devicerelated 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.
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If you desire specific advice for your device on our labeling regulation (21 CFR Part 801), please contact the Division of Industry and Consumer Education at its toll-free number (800) 638-2041 or (301) 796-7100 or at its Internet address
http://www.fda.gov/MedicalDevices/ResourcesforYou/Industry/default.htm. 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 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 Industry and Consumer Education at its toll-free number (800) 638-2041 or (301) 796-7100 or at its Internet address
http://www.fda.gov/MedicalDevices/ResourcesforYou/Industry/default.htm.
Sincerely yours,
Tejashri Purohit-Sheth, M.D.
Tejashri Purohit-Sheth, M.D. Clinical Deputy Director DAGRID/ODE/CDRH FOR
Tina Kiang, PhD Acting Director Division of Anesthesiology, General Hospital, Respiratory, Infection Control and Dental Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
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# Indications for Use
510(k) Number (if known) K160636
#### Device Name
iPEP System and vPEP
#### Indications for Use (Describe)
The D R Burton iPEP Therapy System or vPEP is intended for use as a Positive Expiratory Pressure (PEP) by patients capable of generating an exhalation flow of 10 lpm for 3-4 seconds and an Incentive Spirometer as an inspiratory, deep breathing positive exerciser.
Intended for single-patient, multi-use.
iPEP System for hospital and clinical settings vPEP for hospital, clinical, and home care setting
Type of Use (Select one or both, as applicable)
__ XX Prescription Use (Part 21 CFR 801 Subpart D)
] Over-The-Counter Use (21 CFR 801 Subpart C)
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FORM FDA 3881 (8/14
Page 1 of 1
Publishing Services (301) 443-6740
Form Approved: OMB No. 0910-0120 Expiration Date: January 31, 2017 See PRA Statement on last page.
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510(k) Summary Page 1 of 7 3-Aug-16
| Company | D R Burton Healthcare LLC<br>3936 South Fields Street<br>Farmville, NC 27828<br>Tel - 847-641-0500 |
|----------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Official Contact: | Dennis Cook<br>President & CEO |
| Proprietary or Trade Name: | iPEP System and vPEP |
| Common/Usual Name: | Spirometer, therapeutic (incentive) |
| Product Code: | BWF, Class II |
| Classification / CFR: | 21CFR 868.5690 |
| Device: | iPEP System and vPEP |
| Predicate Devices: | K991561 - Roadrunner PEP Device (DHD Healthcare Corp.)<br>K002768 – Acapella (DHD Healthcare Corp.)<br>K003146 - Cliniflo Incentive Spirometer (DHD Healthcare Corp.) |
## Device Description:
D R Burton Healthcare as indicated above proposes to offer 2 devices which we will refer to as the:
- iPEP (integrated Incentive spirometer with PEP) system and ●
- . vPEP which is a standalone PEP therapy device
#### iPEP system
- Volumetric Incentive Spirometer up to 4000 cc
- Oscillatory PEP module (cartridge) ●
The design of the iPEP system permits the PEP cartridge to be removed and used as an independent PEP device, which we refer to as the Pocket PEP.
In order to use the Pocket PEP the iPEP system includes a separate mouthpiece, carrying / storage case and dust cover which are needed when one wants to use the PEP cartridge independent of the iPEP systems (Pocket PEP).
When the PEP cartridge is removed from the iPEP system, one can insert a cover where the PEP cartridge has been removed to allow the incentive spirometer to be used one its own.
#### vPEP
- The vPEP is the standalone device that is pre-assembled and is not intended to be used in the iPEP ● System. The vPEP incorporates the identical internal components of the PEP cartridge of the iPEP system.
#### Indications for Use:
The D R Burton iPEP Therapy System is intended for use as a Positive Expiratory Pressure (PEP) by patients capable of generating an exhalation flow of 10 lpm for 3-4 seconds and an Incentive Spirometer as an inspiratory, deep breathing positive exerciser.
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510(k) Summary Page 2 of 7 3-Aug-16
Intended for single-patient, multi-use.
iPEP System for hospital and clinical settings vPEP for hospital, clinical, and home care setting
## Patient Population:
Patients requiring inspiratory exercise and capable of generating an exhalation flow of 10 lpm for 3-4 seconds.
## Environment of Use:
iPEP System for hospital and clinical settings vPEP for hospital, clinical, and home care setting
## Substantial Equivalence Discussion
Table 1 and Table 2 compare the key features of the proposed D R Burton iPEP with incentive spirometer and vPEP with the identified predicates. The comparison demonstrates that the devices can be found to be substantially equivalent to the identified predicates. We based this conclusion upon the following:
## Indications for Use -
The indications for use are similar for the proposed device when compared to the predicates - K991561 / K002768 - DHD Acapella for PEP and K003146 - DHD Cliniflo as an Incentive Spirometer. Discussion - We note that the indications for use wording have changed with time. Recent PEP devices have added language related to patients capable of generating an exhalation flow of 10 lpm for 3-4 seconds. This specific wording of the indications for use statement can be found in K123400 - Trudell Aerabika Oscillating Positive Expiratory Pressure. We do not believe that the additional language changes the intent of the indications for use but provides clarity for the user and patient population.
#### Patient Population -
The patient population is defined as patients requiring inspiratory exercise and / or PEP therapy is equivalent to the predicates - K991561 / K002678 - DHD Acapella for PEP and K003146 - DHD Cliniflo as an Incentive Spirometer .
Discussion - The patient populations are equivalent to the predicates - K991561 / K002678 - DHD Acapella for PEP and K003146 - DHD Cliniflo as an Incentive Spirometer. We note that the indications for use wording have changed with time. Recent PEP devices have added language related to patients capable of generating an exhalation flow of 10 lpm for 3-4 seconds. This specific wording of the indications for use statement can be found in K123400 - Trudell Aerabika Oscillating Positive Expiratory Pressure. We do not believe that the additional language changes the intent of the indications for use but provides clarity for the user and patient population.
## Environment of Use -
The environments of use are similar to predicates - K991561 / K002768 - DHD Acapella for PEP and K003146 - DHD Cliniflo as an Incentive Spirometer.
Discussion - We have defined the environment of use for the iPEP System to be hospital and clinical settings and the VPEP, standalone PEP device to be hospital, clinical and home care setting. These environments of use are similar to the predicates - K991561 / K002768 - DHD Acapella for PEP and K003146 - DHD Cliniflo as an Incentive Spirometer.
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510(k) Summary Page 3 of 7 3-Aug-16
#### Principle of Operation and Technology -
The design, components, and principle of operation of the PEP mechanism, a rocker method, that generates oscillations during exhalation and the incentive spirometer in which a float rises during inhalation have been shown to be equivalent to the predicates – K991561 / K002768 – DHD Acapella for PEP and K003146 - DHD Cliniflo as an Incentive Spirometer.
Discussion - The Incentive Spirometer design is a 1 ball / piston volume based system for incentive spirometer that upon the patient inhaling raises the ball to indicate the volume of inspired air and the method of a rocker means that generates oscillations during exhalation for PEP are equivalent to the predicates - K991561 / K002768 - DHD Acapella for PEP and K003146 - DHD Cliniflo as an Incentive Spirometer.
The proposed iPEP system is different from the predicates in that is allows both therapies to be housed in the same unit so the user can receive both therapies during one treatment period. This difference is a matter of convenience for the user; the performance and function of the individual technologies are substantially equivalent to the predicates. Any differences do not raise any new safety or effectiveness concerns.
#### Non-Clinical Testing Summary -
#### Comparative Bench Testing
We performed comparative testing of the PEP functions including frequency and amplitude (pressure) as well as volume accuracy / repeatability for the incentive spirometer portion as well. Each technology was compared to the applicable predicates. The results demonstrated equivalent performance. These results demonstrated that the proposed device is equivalent to the predicates - K991561 / K002768 - DHD Acapella for PEP and K003146 - DHD Cliniflo as an Incentive Spirometer.
Testing that was performed included:
- Aging, Simulated Life (cleaning), Drop Testing, Cleaning ●
- o Pre- and post- exposure
- . PEP amplitude (resistance) and frequency
- Testing was performed at minimum and maximum expected flow rates of 5 lpm and 25 lpm O
- Mean Frequency (Hz) o
- Mean Amplitude (cmH2O) o
- Pressure at Minimum and Maximum levels (cmH2O) O
- . Comparative PEP performance
- . Volumetric Accuracy - repeatability
- Comparative Volumetric accuracy
#### Usability Studies
Usability testing was performed with 2 users groups, lay users and Healthcare Providers, with at least 15 users per identified group. Testing included the appropriate tasks based upon the risk analysis. Testing found that the design of the device and instructions for use were appropriate for the intended user groups.
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#### 510(k) Summary Page 4 of 7 3-Aug-16
#### Biocompatibility Materials -
We tested the materials in direct and indirect patient contact based upon the duration of contact, for a cumulative exposure (<24 hours). The testing performed was cytotoxicity, sensitization, and irritation.
#### Clinical Testing Summary -
There was no clinical testing performed.
#### Discussion of Differences
The differences between the proposed devices and predicates are:
- Combining 2 technologies into 1 package ●
- o We have placed the PEP module inside the incentive spirometer housing, yet each device serves as a standalone. The incentive spirometer is performed upon user inhalation and PEP is performed upon user exhalation. Instead of performing these therapies in 2 separate and independent devices we have combined them into a convenient configuration
- . iPEP System can be separated into 2 separate devices
- The ability to remove the PEP module and use it as an independent PEP device, O referred to as PocketPEP, is unique. However, the performance of the PEP device is similar to the predicate.
These differences to do raise new risk or safety concerns and thus we can conclude the proposed iPEP System and vPEP devices are substantially equivalent to predicates.
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# 510(k) Summary
# Table 1 – Comparison of Proposed Device vs. Predicates
| Attribute | Predicate | Proposed |
|-------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------|
| | DHD Acapella | iPEP System and vPEP |
| | K991561 / K002768 | |
| Indications for Use | indicated for use as a Positive Expiratory Pressure (PEP) Device | The D R Burton iPEP Therapy System is intended for use as a |
| | • improves clearance of secretions<br>• may reduce the need for postural drainage<br>• facilitates opening of airways in patients with Cystic<br>Fibrosis, COPD, asthma, and lung diseases with<br>secretory problems<br>• may be used to prevent or reverse atelectasis | Positive Expiratory Pressure (PEP) by patients capable of |
| | | generating an exhalation flow of 10 lpm for 3-4 seconds and an |
| | | Incentive Spirometer as an inspiratory, deep breathing positive |
| | | exerciser. |
| Environments of use | Home care settings and hospitals | iPEP System for hospital and clinical settings |
| | | vPEP for hospital and home care setting. |
| Prescriptive | Yes | Yes |
| Patient population | Patients requiring PEP therapy | Patients requiring inspiratory exercise and capable of generating an |
| | | exhalation flow of 10 lpm for 3-4 seconds. |
| Single patient, multi-use | Yes | Yes |
| Patient interface | Mouthpiece | Mouthpiece |
| Basic components | Rocker which generates oscillation during exhalation | Flap valve which generates oscillation during exhalation |
| | One-way valve | One-way valve |
| | Mouthpiece | Mouthpiece |
| Mean Frequency range (Hz) | 7.0 @ 5 lpm | 8.0 @ 5 lpm |
| Criteria within 15% | 13.7 @ 25 lpm | 13.0 @ 25 lpm |
| Mean Amplitude / Pressure | 5.9 @ 5 lpm | 5.5 @ 5 lpm |
| (cmH2O) | 23.2 @ 25 lpm | 22.7 @ 25 lpm |
| Criteria within 15% | | |
| Mean Pressure (cmH2O)at | Min - 0 @ 5 lpm | Min - 0 @ 5 lpm |
| Min and Max settings | Min - 2.9 @ 25 lpm | Min - 2.5 @ 25 lpm |
| Criteria within 15% | Max - 5.9 @ 5 lpm | Max – 5.5 @ 5 lpm |
| | Max - 26.1 @ 25 lpm | Max - 25.1 @ 25 lpm |
| Has means to adjust | Yes, variable exhalation opening | Yes, variable exhalation opening |
| amplitude / pressure | | |
| Attribute | Predicate<br>DHD Acapella<br>K991561 / K002768 | Proposed<br>iPEP System and vPEP |
| Cleaning method | Rinse, soap and water | Rinse, soap and water |
| Performance testing | | Age<br>Cleaning / simulated life<br>Drop test<br>Frequency (Hz)<br>Amplitude (cmH2O)<br>Pressure at min / max settings (cmH2O) |
| Type of Patient contact with<br>materials | Externally communicating / Tissue<br>Surface contact / mucosa<br>Limited duration (< 24 hours) | Externally communicating / Tissue<br>Surface contact / mucosa<br>Limited duration (< 24 hours) |
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# 510(k) Summary
## Table 2 - Comparison for Incentive Spirometer
| Attribute | DHD Cliniflo /Coach<br>K003146 | Proposed<br>iPEP with Incentive Spirometer |
|---------------------------|--------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Indications for Use | Intended as an inspiratory deep breathing positive exerciser | The D R Burton iPEP Therapy System is intended for use as a<br>Positive Expiratory Pressure (PEP) by patients capable of<br>generating an exhalation flow of 10 lpm for 3-4 seconds and an<br>Incentive Spirometer as an inspiratory, deep breathing positive<br>exerciser. |
| Environments of use | Home care settings and hospitals | iPEP System for hospital and clinical settings |
| Prescriptive | Yes | Yes |
| Patient population | Patients requiring inspiratory exercise | Patients requiring inspiratory exercise |
| Single patient, multi-use | Yes | Yes |
| Patient interface | Mouthpiece with flex-tubing | Mouthpiece with flex-tubing |
| Basic components | Housing<br>1 ball / piston<br>Tubing<br>Mouthpiece | Housing<br>1 ball / piston<br>Tubing<br>Mouthpiece |
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#### 510(k) Summary Page 7 of 7 3-Aug-16
| Attribute | DHD Cliniflo /Coach<br>K003146 | Proposed<br>iPEP with Incentive Spirometer |
|-------------------------------------------|------------------------------------------------------------------------------------------------|------------------------------------------------------------------------------------------------------------|
| Volume range | 2500 and 5000 cc | 4000 cc |
| Performance testing | Volume accuracy<br>2500 cc (14 – 21%)<br>5000 cc (16 – 21%) | Volume accuracy<br>4000 cc (1.6 to 2.2%)<br>Age Testing<br>Pre and post- exposure<br>Drop test<br>Cleaning |
| Type of Patient contact<br>with materials | Externally communicating / Tissue<br>Surface contact / mucosa<br>Limited duration (< 24 hours) | Externally communicating / Tissue<br>Surface contact / mucosa<br>Limited duration (< 24 hours) |
#### Substantial Equivalence Conclusion
As detailed, the indications for use, patient population, environment of use, technology or principle of operation, and performance are substantially equivalent to the predicates.
The identified differences between the proposed D R Burton iPEP system or vPEP and the predicates – K991561 / K002768 – DHD Acapella for PEP and K003146 - DHD Clinifio as an Incentive Spirometer based upon the comparative performance testing allows us there are no new safety or effectiveness concerns that raise new risks and thus the can be determined to be substantially equivalent.
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.