K190966 · Katalyst, Inc. · NGX · Feb 3, 2020 · Physical Medicine
Device Facts
Record ID
K190966
Device Name
Katalyst Training System
Applicant
Katalyst, Inc.
Product Code
NGX · Physical Medicine
Decision Date
Feb 3, 2020
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 890.5850
Device Class
Class 2
Attributes
Therapeutic
Indications for Use
The Katalyst Training System is an Over-The-Counter device intended to stimulate healthy muscles in order to improve or facilitate muscle performance. It is to be used by adults only. The Katalyst Training System is not intended to be used in conjunction with therapy or treatment of medical diseases or medical conditions of any kind. None of the training programs or operational parameters are designed to target injured or ailing muscles and its use on such muscles is contraindicated. The Katalyst Training System's electrical impulses allow the triggering of action potentials on motoneurons of motor nerves (excitations). These excitations of motoneurons are transmitted to the muscle fibers via the motor endplate where they generate mechanical muscle fiber responses that correspond to muscle work. Depending on the parameters of the electrical impulses (pulse frequency, duration of contraction, duration of rest, total session duration), different types of muscle work can be imposed on the stimulated muscles.
Device Story
Katalyst Training System is a battery-powered neuromuscular electrical stimulation (NMES) device for muscle conditioning. System consists of an Impulse Pack and a wearable suit with integrated electrodes. User operates device via Katalyst Application on a user-supplied iOS device, communicating via Bluetooth 4.2. Device delivers electrical impulses to trigger action potentials on motoneurons, inducing muscle fiber contraction. Parameters (pulse frequency, contraction/rest duration) are adjustable to impose different types of muscle work. Used by adults in non-clinical settings for fitness/performance improvement. Output allows users to recruit more muscle fibers during training. Device includes safety features like automatic overload/no-load trips and patient override. Healthcare providers do not operate the device; it is for consumer self-use.
Clinical Evidence
No clinical data submitted. Substantial equivalence supported by non-clinical bench testing, including biocompatibility (ISO 10993-5/10), electrical safety (IEC 60601-1, IEC 60601-2-10), electromagnetic compatibility (IEC 60601-1-2), wireless coexistence, and software verification/validation.
Technological Characteristics
Battery-powered (7.4V Li-Po) NMES device. 13 output channels using multi-channel high-voltage analog switches. Symmetrical biphasic rectangular waveforms. Regulated current output. Connectivity via Bluetooth 4.2 to iOS application. Materials: plastic injection molded housing. Standards: IEC 60601-1, IEC 60601-1-2, IEC 60601-2-10, IEC 62133, ISO 14971, ISO 10993, IEC 62304.
Indications for Use
Indicated for healthy adults to stimulate muscles to improve or facilitate muscle performance. Contraindicated for use on injured or ailing muscles or in conjunction with therapy/treatment of medical diseases or conditions.
Regulatory Classification
Identification
A powered muscle stimulator is an electrically powered device intended for medical purposes that repeatedly contracts muscles by passing electrical currents through electrodes contacting the affected body area.
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Image /page/0/Picture/0 description: The image contains two logos. On the left is the Department of Health & Human Services logo. On the right is the FDA logo, which includes the letters "FDA" in a blue square, followed by the words "U.S. FOOD & DRUG ADMINISTRATION" in blue text.
February 3, 2020
Katalyst Inc. Bjoern Woltermann Chief Executive Officer 316 Occidental Ave. South Suite B300 Seattle, WA 98104
Re: K190966
Trade/Device Name: Katalyst Training System Regulation Number: 21 CFR 890.5850 Regulation Name: Powered Muscle Stimulator Regulatory Class: Class II Product Code: NGX Dated: January 30, 2020 Received: January 31, 2020
Dear Bjoern Woltermann:
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 statutes and regulations administered by other Federal agencies. You must comply with all the Act's
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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/combination-products/guidance-regulatory-information/postmarketing-safety-reportingcombination-products); good manufacturing practice requirements as set forth in the quality systems (OS) 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 https://www.fda.gov/medical-device-safety/medical-device-reportingmdr-how-report-medical-device-problems.
For comprehensive regulatory information about mediation-emitting products, including information about labeling regulations, please see Device Advice (https://www.fda.gov/medicaldevices/device-advice-comprehensive-regulatory-assistance) and CDRH Learn (https://www.fda.gov/training-and-continuing-education/cdrh-learn). 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 (https://www.fda.gov/medical-device-advice-comprehensive-regulatoryassistance/contact-us-division-industry-and-consumer-education-dice) for more information or contact DICE by email (DICE@fda.hhs.gov) or phone (1-800-638-2041 or 301-796-7100).
Sincerely,
For Vivek Pinto, Ph.D. Director DHT5B: Division of Neuromodulation and Physical Medicine Devices OHT5: Office of Neurological and Physical Medicine Devices Office of Product Evaluation and Quality Center for Devices and Radiological Health
Enclosure
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#### Indications for Use
510(k) Number (if known) K190966
Device Name Katalyst Training System
#### Indications for Use (Describe)
The Katalyst Training System is an Over-The-Counter device intended to stimulate healthy muscles in order to improve or facilitate muscle performance. It is to be used by adults only.
The Katalyst Training System is not intended to be used in conjunction with therapy or treatment of medical diseases or medical conditions of any kind. None of the training programs or operational parameters are designed to target injured or ailing muscles and its use on such muscles is contraindicated.
The Katalyst Training System's electrical impulses allow the triggering of action potentials on motoneurons of motor nerves (excitations). These excitations of motoneurons are transmitted to the muscle fibers via the motor endplate where they generate mechanical muscle fiber responses that correspond to muscle work. Depending on the parameters of the electrical impulses (pulse frequency, duration of contraction, duration of rest, total session duration), different types of muscle work can be imposed on the stimulated muscles.
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) |
|----------------------------------------------------------------------------------------------------------------------|------------------------------------------------------------------------------------------------------------------------------|
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# 510(k) Summary
This 510(k) summary of safety and effectiveness is being submitted in accordance with the requirements of 21 CFR 807.92.
## Submitted by:
Katalyst Inc. 1201 3rd Avenue Suite 2200 Seattle WA, 98101
#### Contact Person:
Bjoern Woltermann - Chief Executive Officer, Katalyst Inc. Tel: (206) 488-3939 Email: bjoern@katalyst-fitness.com
#### Date Summary Prepared
April 3, 2019
Trade/Proprietary Name
Katalyst Training System
#### Common Name
Powered Muscle Stimulator for Muscle Conditioning
#### Classification Name
Powered Muscle Stimulator
## Product Code:
Powered Muscle Stimulator, For Muscle Conditioning - 21 CFR 890.5850 Product Code NGX Review Panel: 89, Physical Medicine
Regulatory Class Class II
Predicate Devices Compex Wireless USA (K170903)
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#### Device Description
The Katalyst Training System is a battery powered muscle stimulator that uses electrical muscle stimulation (EMS) technology to stimulate your muscles and help to improve muscle performance. Specifically, it uses neuromuscular electrical stimulation (NMES) to stimulate motor nerves, creating a muscle contraction to recruit more muscle fibers while training.
It is designed to be used with the Katalyst Application, which is the interface between the user and the Impulse Pack and runs on a user supplied iOS device communicates wirelessly with the Impulse Pack using Bluetooth 4.2.
# Indications for Use
The Katalyst Training System is an Over-The-Counter device intended to stimulate healthy muscles in order to improve or facilitate muscle performance. It is to be used by adults only.
The Katalyst Training System is not intended to be used in conjunction with therapy or treatment of medical diseases or medical conditions of any kind. None of the training programs or operational parameters are designed to target injured or ailing muscles and its use on such muscles is contraindicated.
The Katalyst Training System's electrical impulses allow the triggering of action potentials on motoneurons of motor nerves (excitations). These excitations of motoneurons are transmitted to the muscle fibers via the motor endplate where they generate mechanical muscle fiber responses that correspond to muscle work. Depending on the parameters of the electrical impulses (pulse frequency, duration of contraction, duration of rest, total session duration), different types of muscle work can be imposed on the stimulated muscles.
#### Comparison to the Predicate Device
The similarities and differences between the technology and specifications of the subject device and its predicate devices are reflected below:
| Characteristic | New Device | Predicate Device | Comparison |
|--------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|----------------------------------------------------|
| Manufacturer | Katalyst Inc. | DJO LLC | N/A |
| Device name, model | Katalyst Training System<br>Model 1 | Compex Wireless USA | N/A |
| Classification name | Powered muscle stimulator | Powered muscle stimulator | Similar |
| Product code | NGX | NGX | Similar |
| Regulation number | 21 CFR 890.5850 | 21 CFR 890.5850 | Similar |
| Panel | Physical Medicine | Physical Medicine | Similar |
| Class | Class II | Class II | Similar |
| 510(k) number | - | K170903 | N/A |
| Prescription/OTC | OTC | OTC | Similar |
| Indications for use | The Katalyst Training System is an Over-The-Counter device intended to stimulate healthy muscles in order to improve or facilitate muscle performance. It is to be used by adults only. The Katalyst Training | The Compex Wireless USA is an Over-The-Counter device intended to stimulate healthy muscles in order to improve or facilitate muscle performance. It is to be used by adults only. The Compex Wireless USA | The Katalyst Training System does not include TENS |
| | | | |
| System is not intended to be | is not intended for | | |
| used in conjunction with | adjunctive therapy in the | | |
| therapy or treatment of | treatment of medical | | |
| medical diseases or medical | diseases and conditions of | | |
| conditions of any kind. None | any kind. None of the | | |
| of the training programs or | Compex Wireless USA | | |
| operational parameters are | stimulation programs are | | |
| designed to target injured or | designed for injured or | | |
| ailing muscles and its use on | disease afflicted muscles. Its | | |
| such muscles is | use on such muscles is | | |
| contraindicated. | contraindicated. The work | | |
| The Katalyst Training | imposed on the muscles by | | |
| System's electrical impulses | the Compex Wireless USA | | |
| allow the triggering of action | programs is definitely not | | |
| potentials on motoneurons of | suitable for rehabilitation | | |
| motor nerves (excitations). | and physiotherapy. The | | |
| These excitations of | Compex Wireless USA | | |
| motoneurons are transmitted | electrical impulses allow the | | |
| to the muscle fibers via the | triggering of action | | |
| motor endplate where they | potentials on motoneurons | | |
| generate mechanical muscle | of motor nerves | | |
| fiber responses that | (excitations). These | | |
| correspond to muscle work. | excitations of motoneurons | | |
| Depending on the parameters | are transmitted to the muscle | | |
| of the electrical impulses | fibers via the motor endplate | | |
| (pulse frequency, duration of | where they generate | | |
| contraction, duration of rest, | mechanical muscle fiber | | |
| total session duration), | responses that correspond to | | |
| different types of muscle | muscle work. Depending on | | |
| work can be imposed on the | the parameters of the | | |
| stimulated muscles. | electrical impulses (pulse | | |
| | frequency, duration of | | |
| | contraction, duration of rest, | | |
| | total session duration), | | |
| | different types of muscle | | |
| | work can be imposed on the | | |
| | stimulated muscles. The<br>Compex Wireless USA may | | |
| | therefore be considered a | | |
| | technique of muscle training. | | |
| | The Compex Wireless USA | | |
| | TENS is used for: | | |
| | • temporary relief of pain | | |
| | associated with sore and | | |
| | aching muscles due to strain | | |
| | from exercise or normal | | |
| | household and work | | |
| | activities. | | |
| | • the symptomatic relief and | | |
| | management of chronic, | | |
| | intractable pain and relief of | | |
#### Basic Device Characteristics - Comparison with Predicate Devices
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| | | pain associated with arthritis. | |
|--------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|------------------------------------------------------------------------------------------------------------------------|
| Target population | It is to be used by adults only. | It is to be used by adults only. | Similar |
| Connection of device to electrodes | The Impulse Pack connects to the Suit through output cables that terminate with pogo pin connectors. The Suit contains an embedded cable harness which makes connection with the built-in electrodes. Neither the cable harness or the electrodes are removable. The Suit also features leads with snap connectors for connecting to the arm electrodes | Lead wires Stimulation Module is directly connected to the custom Compex female SNAP assembled in the electrode. User Interface (LCD and buttons) is physically separated (Remote Control) and communicates wirelessly with up to four (4) Stimulation Modules. Stimulation safety remains fully managed by Stimulation Module electronic circuit itself. | Different |
| Power source(s) | Lithium Polymer (Li-Po) rechargeable battery 7.4V, 2,050 mAh | Remote: Lithium Polymer (LiPo) rechargeable 3.7[V] / ≥ 1500[mAh Stimulation Modules: Lithium Polymer (LiPo) rechargeable 3.7[V] / ≥ 450[mAh] | Similar |
| Method of line current isolation | N/A (battery operated device) | N/A (battery operated device) | Similar |
| Patient leakage current | N/A (battery operated device) | N/A (battery operated device) | Similar |
| Normal condition | N/A (battery operated device) | N/A (battery operated device) | Similar |
| Single fault condition | N/A (battery operated device) | N/A (battery operated device) | Similar |
| Number of output modes | One (NMES) | Two (NMES/TENS) | Different<br>The Katalyst Training System does not include TENS |
| Number of output channels | 13 | 4 | Different<br>Compex Wireless USA Electrodes can be applied to multiple anatomical sites. Katalyst Training |
| Synchronous or<br>alternating? | Synchronous, but never 2<br>channels activated at the<br>same time | Synchronous, but never 2<br>channels activated at the<br>same time | System<br>electrodes are<br>fixed in the suit<br>only allowing<br>stimulation to<br>predefined<br>areas of the<br>body |
| Method of<br>channel isolation | Multi-Channel High Voltage<br>Analog Switches. Except<br>during channel activation,<br>each channel is always in<br>high Z state | Each channel is the middle<br>of a H- Bridge. Except when<br>it is activated, each channel<br>is always in high impedance<br>state | Similar |
| Regulated current or<br>regulated voltage? | Regulated current (all<br>channels) | Regulated current (all<br>channels) | Similar |
| Software/firmware/m<br>icroprocessor<br>control? | Yes | Yes | Similar |
| Automatic overload<br>trip? | Yes | Yes | Similar |
| Automatic no-load<br>trip? | Yes | Yes | Similar |
| Automatic shut off? | "On/Off" switch | "On/Off" switch | Similar |
| Patient override<br>control? | Yes | Yes, push on On/Off button<br>directly pause the program | Similar |
| Indicator display<br>- on/off status? | Yes | Yes | Similar |
| - Low battery? | Yes | Yes | Similar |
| - Voltage/current<br>level? | Yes | Yes, unit = [Energy] | Similar |
| Timer range<br>(minutes) | Maximum program: 60<br>minutes | Not publicly available | Cannot<br>determine |
| Compliance with<br>voluntary standards? | Yes<br>IEC 60601-1<br>IEC 60601-1-2<br>IEC 60601-2-10 | Yes<br>IEC 60601-1<br>IEC 60601-1-2<br>IEC 60601-1-11<br>IEC 60601-2-10 | Similar<br>The Katalyst<br>Training<br>System is not<br>intended for<br>use in a home<br>care<br>environment |
| Compliance with 21<br>cfr 898? | Yes | Yes | Similar |
| Weight | Impulse Pack - 248 g | Remote: 110 [g]<br>Stimulation<br>Module:2x60 [g]<br>Docking Station 800 [g] | Similar |
| Dimensions | Impulse Pack | Not publicly available | Cannot |
| | Impulse Pack<br>- 148x78 mm<br>Connector 1<br>- 65x32mm<br>Connector 2<br>- 56x32mm | | determine |
| Housing material and<br>construction | Plastic injection molding | Not publicly available | Cannot<br>determine |
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| Output Specification - Comparison with Predicate Devices | | | |
|----------------------------------------------------------|--|--|--|
| | | | |
| Characteristic | New Device | Predicate Device | Comparison | |
|--------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------|
| Manufacturer | Katalyst Inc. | DJO LLC | N/A | |
| Device name, model | Katalyst Training System<br>Model 1 | Compex Wireless USA | N/A | |
| Waveform | Endurance:<br>Symmetrical Biphasic | -Endurance:<br>Symmetrical Biphasic | Similar<br>The Katalyst<br>Training<br>System does<br>not include<br>TENS | |
| | Resistance:<br>Symmetrical Biphasic | -Resistance:<br>Symmetrical Biphasic | | |
| | Strength:<br>Symmetrical Biphasic | -Strength:<br>Symmetrical Biphasic | | |
| | Explosive Strength:<br>Symmetrical Biphasic | -Explosive Strength:<br>Symmetrical Biphasic | | |
| | Potentiation:<br>Symmetrical Biphasic | -Potentiation: Symmetrical<br>Biphasic | | |
| | Training Recovery :<br>Symmetrical Biphasic | -Training Recovery (same as<br>Active Recovery):<br>Symmetrical Biphasic | | |
| | Competition Recovery:<br>Symmetrical Biphasic…
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.