K223620 · Regenesis Biomedical, Inc. · IMJ · May 24, 2023 · Physical Medicine
Device Facts
Record ID
K223620
Device Name
Reprieve by RegenesisTM
Applicant
Regenesis Biomedical, Inc.
Product Code
IMJ · Physical Medicine
Decision Date
May 24, 2023
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 890.5290
Device Class
Class 2
Attributes
Therapeutic
Indications for Use
The Reprieve by Regenesis™ device is indicated to generate deep heating within body tissues for the treatment of conditions such as relief of pain and muscle spasms.
Device Story
Reprieve is a prescription shortwave diathermy (SWD) device for home use. It consists of a base unit and treatment applicators. The device generates a 27.12 MHz radiofrequency (RF) signal delivered via applicators to body tissues. It operates in continuous wave (100% duty cycle) or pulsed wave modes (200-1000Hz pulse rate; 20-100µsec pulse width). The base unit includes an LCD screen, buttons, and an LED light bar. Circuitry monitors applicator contact with the patient to regulate power output (up to 10W). Treatment time is preset to 30 minutes to prevent overtreatment. The device is operated by a nontechnical adult, with or without immediate clinician supervision. The deep heating effect is intended to provide therapeutic warmth for pain relief and muscle spasm reduction. The device is powered by an external A/C to D/C power supply.
Clinical Evidence
Bench testing only. In vitro muscle phantom testing demonstrated therapeutic deep heating (40-45°C) at 1-2cm depth for 15-20 minutes, with surface and 3cm depth temperatures not exceeding 45°C. Usability/human factors validation study with representative naïve users confirmed safe and effective operation for critical tasks in a home-use environment.
Technological Characteristics
Shortwave diathermy device; 27.12 MHz RF energy; 10W max power. Materials: Polycarbonate/ABS (generator), Polycarbonate Makrolon™ 2458 (applicator), PVC (cable), Autoflex EB polyester film (interface). Standards: IEC 60601-1, IEC 60601-1-2, IEC 60601-1-6, IEC 60601-1-11, IEC 60601-2-3, IEC 62366-1, ISO 10993-1:2018. Non-sterile. Connectivity: External A/C to D/C power supply.
Indications for Use
Indicated for adults (not children) for deep tissue heating to treat pain and muscle spasms in soft tissue injuries or overtraining.
Regulatory Classification
Identification
A nonthermal shortwave therapy is a prescription device that applies to the body pulsed electromagnetic energy in the RF bands of 13.56 MHz or 27.12 MHz and that is intended for adjunctive use in the palliative treatment of postoperative pain and edema of soft tissue by means other than the generation of deep heat within body tissues as described in paragraph (a) of this section.
Special Controls
*Classification: Class II (special controls).* The device is classified as class II. The special controls for this device are:(i) Components of the device that come into human contact must be demonstrated to be biocompatible.
(ii) Appropriate analysis/testing must demonstrate that the device is electrically safe and electromagnetically compatible in its intended use environment.
(iii) Non-clinical performance testing must demonstrate that the device performs as intended under anticipated conditions of use. Non-clinical performance testing must characterize the output waveform of the device and demonstrate that the device meets appropriate output performance specifications. The output characteristics and the methods used to determine these characteristics, including the following, must be determined:
(A) Peak output power;
(B) Pulse width;
(C) Pulse frequency;
(D) Duty cycle;
(E) Characteristics of other types of modulation that may be used;
(F) Average measured output powered into the RF antenna/applicator;
(G) Specific absorption rates in saline gel test load or other appropriate model;
(H) Characterization of the electrical and magnetic fields in saline gel test load or other appropriate model for each RF antenna and prescribed RF antenna orientation/position; and
(I) Characterization of the deposited energy density in saline gel test load or other appropriate model.
(iv) A detailed summary of the clinical testing pertinent to use of the device to demonstrate the effectiveness of the device in its intended use.
(v) Labeling must include the following:
(A) Output characteristics of the device;
(B) Recommended treatment regimes, including duration of use; and
(C) A detailed summary of the clinical testing pertinent to the use of the device and a summary of the adverse events and complications.
(vi) Nonthermal shortwave therapy devices marketed prior to the effective date of this reclassification must submit an amendment to their previously cleared premarket notification (510(k)) demonstrating compliance with these special controls.
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May 24, 2023
Regenesis Biomedical Inc. Randy Chavez VP Regulatory Affairs & Quality Assurance 5301 N Pima Road, Ste 150 Scottsdale, Arizona 85250
Re: K223620
Trade/Device Name: Reprieve by RegenesisTM Regulation Number: 21 CFR 890.5290 Regulation Name: Shortwave Diathermy Regulatory Class: Class II Product Code: IMJ Dated: May 23, 2023 Received: May 23, 2023
Dear Randy Chavez:
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.
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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 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 (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 https://www.fda.gov/medical-device-safety/medical-device-reportingmdr-how-report-medical-device-problems.
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/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.
# Lauren E. Woodard -S
for Amber Ballard, PhD Assistant 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) K223620
Device Name Reprieve by Regenesis™
Indications for Use (Describe)
The Reprieve by Regenesis™ device is indicated to generate deep heating within body tissues for the treatment of conditions such as relief of pain and muscle spasms.
X Prescription Use (Part 21 CFR 801 Subpart D)
| Over-The-Counter Use (21 CFR 801 Subpart C)
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## 510(k) Summary
| 510(k) Summary | This summary of 510(k) safety and effectiveness information is being submitted in accordance with the requirements of 21 CFR § 807.92. |
|------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Submitter | Regenesis Biomedical, Inc. |
| Contact Person | Randy Chavez<br>5301 North Pima Road<br>Scottsdale, AZ 85250 USA<br>Email: Randy.Chavez@regenesisbio.com<br>Mobile: 480-297-5800<br>Fax: 866-857-8792 |
| Date Prepared | May 23, 2023 |
| Product Name | Reprieve by Regenesis™ |
| Common Name | Shortwave Diathermy |
| Device Classification | Class II |
| Product Code | IMJ |
| Predicate Devices | Predicate device:<br>• ViaTherm BOOST Diathermy System (K173300).<br>Reference devices:<br>• ThermoPro (K161862)<br>• Intelect SWD100 (K083433)<br>No secondary predicate devices were used in this submission. |
| Device Description | The Reprieve by Regenesis™ device (Reprieve) is a prescription shortwave diathermy (SWD) device consisting of a single base unit connected to one or two treatment applicators. The device connects to A/C power through an external, off-the-shelf, power supply generating radiofrequency energy which delivers SWD through the treatment applicator(s).<br><br>The base unit houses an LCD screen with four raised buttons, two on each side of the LCD screen, and an LED light bar. The back of the base unit has a molded slot to accommodate the treatment applicator(s), a pouch to store the power supply, and a cable wrapping loop to organize the treatment applicator cables. The bottom of the base unit has an opening to connect the A/C power supply. The treatment |
| | factory-affixed coaxial cables. The top is the treatment side of the applicator is a<br>darker color to distinguish it from the lighter-colored bottom, the non-treatment<br>side. The top also has circular imagery denoting the center of the applicator.<br>The Reprieve device generates a 27.12 MHz RF signal that has a 100% duty cycle when<br>programmed to continuous wave (CW) mode. When prescribed for pulsed wave (PW)<br>mode, the pulse rate (e.g., pulses per second) can be varied from 200Hz to 1000Hz in<br>200Hz increments, and the pulse width (e.g., the elapsed time the pulse is on) from<br>20µsec to 100µsec in 20µsec increments. |
| Indications for<br>Use | The Reprieve by Regenesis™ device is indicated to generate deep heating within body<br>tissues for the treatment of conditions such as relief of pain and muscle spasms. |
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### Comparison of Technological Characteristics with Predicate Device
The table below lists and compares the technological characteristics of the Reprieve by Regenesis™ device and the predicate device, the ViaTherm BOOST Diathermy System.
| Attribute | ViaTherm<br>BOOST Diathermy System | Regenesis Biomedical Inc.<br>Reprieve by Regenesis™ | Comment |
|-------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Intended<br>Use/Indication<br>For Use | To generate deep heating<br>within body tissues for the<br>treatment of conditions such<br>as relief of pain and muscle<br>spasms. | To generate deep heating<br>within body tissues for the<br>treatment of conditions such<br>as relief of pain and muscle<br>spasms. | Same as predicate |
| Trade/Device<br>Name | BOOST Diathermy System | Reprieve by Regenesis™ | --- |
| 510(k) Number | K173300 | K223620 | --- |
| Class | II | II | Same as predicate |
| Product Code | IMJ | IMJ | Same as predicate |
| Regulation<br>Number | 21 CFR 890.5290 | 21 CFR 890.5290 | Same as predicate |
| Regulation<br>Name | Shortwave Diathermy Device | Shortwave Diathermy Device | Same as predicate |
| Target<br>Population | Adults (not to be used on<br>children) whose medical<br>conditions would be treated,<br>in whole or in part, with<br>therapeutic warmth. Some<br>examples of these types of<br>medical conditions are as<br>follows: pain and swelling in<br>soft tissue injuries; muscle<br>spasms or pain due to injury<br>or overtraining. | Adults (not to be used on<br>children) whose medical<br>conditions would be treated,<br>in whole or in part, with<br>therapeutic warmth. Some<br>examples of these types of<br>medical conditions are as<br>follows: pain and swelling in<br>soft tissue injuries; muscle<br>spasms or pain due to injury<br>or overtraining. | Same as predicate |
| Attribute | ViaTherm<br>BOOST Diathermy System | Regenesis Biomedical Inc.<br>Reprieve by Regenesis™ | Comment |
| Intended<br>Environment<br>for Use | OTC device intended for use<br>by patients in non-clinical<br>environments, including the<br>home. | Prescription device designed<br>for home use by a<br>nontechnical operator with or<br>without the immediate<br>supervision of a healthcare<br>practitioner. | Prescription use<br>versus OTC does<br>not raise issues of<br>safety or<br>effectiveness |
| Design | User-friendly device designed<br>with safety mechanisms that<br>enable it to be effectively and<br>safely operated by a<br>nontechnical adult in non-<br>clinical environments,<br>including the home setting. | User-friendly device designed<br>with safety mechanisms that<br>enable it to be effectively and<br>safely operated by a<br>nontechnical adult in a non-<br>clinical setting. | Same as predicate |
| Mechanism of<br>Action | Deep heating of tissue by<br>therapeutic application of<br>radio frequency electrical<br>currents. | Deep heating of tissue by<br>therapeutic application of<br>radio frequency electrical<br>currents. | Same as predicate |
| Anatomical Site<br>Locations | Multi-use therapy garments<br>for target location areas of 5<br>to 18 square inches: Arm<br>(e.g., bicep, wrist, forearm),<br>back, shoulder, leg (e.g.,<br>thigh, knee, calf), foot | Multi-purpose treatment<br>applicator pad(s) usable on all<br>typical target locations, up to<br>28 square inches: Arm (e.g.,<br>bicep, wrist, forearm), back,<br>shoulder, leg (e.g., thigh,<br>knee, calf), foot | Treatment<br>applicators are<br>designed for use on<br>similar body<br>locations,<br>differences do not<br>raise issues of<br>safety or<br>effectiveness |
| Treatment time | 40-45 minutes | 35-45 minutes | Similar treatment<br>times, differences<br>do not raise issues<br>of safety or<br>effectiveness |
| Available<br>warming<br>control | Single setting as directed by<br>patient. | Single setting as directed by<br>clinician. | Both devices have<br>single setting for<br>use, does not raise<br>issues of safety or<br>effectiveness |
| Thermal<br>performance | Achieves 4°C temperature<br>rise at 25 minutes. | Achieves 4°C temperature<br>rise at 25 minutes. | Same as predicate |
| Attribute | ViaTherm<br>BOOST Diathermy System | Regenesis Biomedical Inc.<br>Reprieve by Regenesis™ | Comment |
| Materials | Generator | Generator –<br>Polycarbonate/ABS | Both devices utilize materials that are biocompatible for the intended use based on the nature and duration of contact which does not raise issues of safety or effectiveness |
| | Therapy Garment Material | Treatment Applicator Pad Material | |
| | • Futuro™ 3M, composed of polyurethane foam, nylon, polyester, polyethylene, and spandex<br>• Velcro Extender Strap | • Polycarbonate Makrolon™ 2458 | |
| | Charger Cord | Treatment Applicator Cable – polyvinyl chloride (PVC) | |
| | Patient Interface – 100% cotton | Patient Interface – Autoflex EB (polyester film) | |
| Safety factors | The device treatment is intended to be self-administered in the home. The device is battery operated. It contains circuit boards that determine if the garment is making sufficient contact with the user, and if so, will output the designated power. The treatment time is based on the life of the battery, preventing the user from over treating. | The device treatment is intended to be self-administered in the home. The device is connected to an external power supply. It contains circuit boards that determine if the device is delivering sufficient power based on contact with the user, and if required, will increase or decrease the needed output power within a 10W limitation. The treatment time is preset to 30 minutes, preventing the user from over treating. | Both devices are intended to be self-administered at home with power control based on applicator contact with patient and time limited. The differences to not raise issues of safety or effectiveness |
| Biocompatibility | Established | Established to ISO 10993-1:2018 | Same as predicate |
| Attribute | ViaTherm<br>BOOST Diathermy System | Regenesis Biomedical Inc.<br>Reprieve by RegenesisTM | Comment |
| Operating<br>Frequency | Radiofrequency as defined<br>per 21 CFR 890.5290: 13.56 MHz | Radiofrequency as defined<br>per 21 CFR 890.5290: 27.12 MHz | Both devices use<br>the radiofrequency<br>spectrum as<br>defined by<br>regulatory statute<br>and safety<br>standards, the<br>difference does not<br>raise issues of<br>safety or<br>effectiveness |
| RF Power | 5W | <10W | Both devices use<br>less than 10W of<br>power and can be<br>classified as low<br>power devices per<br>IEC 60601-2-3. As<br>both devices use<br>less than 10W of<br>power, the<br>difference does not<br>raise issues of<br>safety or<br>effectiveness |
| RF Connector | BNC (patient accessible) | SMA (not patient accessible) | Both connectors<br>provide RF<br>connection, but<br>have different<br>threading; the<br>difference does not<br>raise issues of<br>safety or<br>effectiveness |
| Impedance | 50 Ohms nominal | 50 Ohms nominal | Same as predicate |
| Power Supply | Ni-MH AA – 1.2V x4 (4.8V),<br>2000 mAh | DC power provided by an<br>external A/C to D/C power<br>supply (40W, medical grade<br>Class II wall plug) | Both devices use<br>DC power to<br>deliver RF energy,<br>the difference does<br>not raise issues of<br>safety or<br>effectiveness |
| Attribute | ViaTherm<br>BOOST Diathermy System | Regenesis Biomedical Inc.<br>Reprieve by Regenesis™ | Comment |
| Duty Cycle | Continuous Wave (100%) | Continuous Wave (100%)<br>Pulsed Wave (Varies due to<br>pulse parameters. These<br>parameters are selected by<br>the clinician and can range<br>from 20-100μ pulse width<br>and 200-1000Hz pulse rate,<br>resulting in a range of duty<br>cycles from 0.4 to 10.0%) | Both devices have<br>a continuous wave<br>mode. The pulsed<br>wave mode can be<br>selected by the<br>ordering clinician.<br>The addition of<br>pulsed wave<br>modes for a<br>prescription<br>shortwave<br>diathermy device<br>that range in<br>power from 0.3 to<br>7.0 W of power,<br>similar to the 5.0 W<br>of power of the<br>predicate device,<br>and settings similar<br>to the reference<br>predicate devices<br>does not raise<br>issues of safety or<br>effectiveness |
| Load Standing<br>Wave Ratio<br>(LSWR) | 3.0:1 max | 1.5:1 max | Improved LSWR<br>allows for more<br>efficient RF<br>delivery over a<br>wide variety of<br>body loads,<br>therefore the<br>difference does not<br>raise issues of<br>safety or<br>effectiveness |
| Weight (base<br>unit) | 1.6 lbs. | 5.0 lbs. | Both devices are<br>lightweight, the<br>difference does not<br>raise issues of<br>safety or<br>effectiveness |
| Attribute | ViaTherm<br>BOOST Diathermy System | Regenesis Biomedical Inc.<br>Reprieve by Regenesis™ | Comment |
| Size (base unit) | 2.25" x 4.875" x 6.5" | 6.1" x 11.3" x 11.4" | Larger size allows<br>for LCD screen and<br>applicator storage,<br>the difference does<br>not raise issues of<br>safety or<br>effectiveness |
| Sterility | Non-sterile | Non-sterile | Same as predicate |
| Operating<br>Temperatures | 59 to 104 °F (15 to 40 °C) at<br>relative humidity of 30%-90%<br>(noncondensing) and<br>pressure of 700-1060 hPa. | 41 to 104 °F (5 to 40 °C) at<br>relative humidity of 15%-90%<br>(noncondensing) and<br>pressure of 700-1060 hPa. | Similar operating<br>temperatures, the<br>difference does not<br>raise issues for<br>safety or<br>effectiveness |
| Storage<br>Temperatures | 50 to 140 °F (10 to 60 °C) at<br>relative humidity of 15%-90%<br>(noncondensing) and<br>pressure of 700-1060 hPa. | -13 to 158 °F (-25 to 70 °C) at<br>relative humidity of 15%-90%<br>(noncondensing) and<br>pressure of 700-1060 hPa. | Wider storage<br>temperature range,<br>the difference does<br>not raise issues of<br>safety or<br>effectiveness |
| Coil design | Two flat spiral coils<br>embedded in a fabric<br>garment applicator | Single flat spiral coil<br>embedded in a polycarbonate<br>applicator | Both devices use<br>spiral coils to<br>generate RF field,<br>the difference does<br>not raise issues of<br>safety or<br>effectiveness |
| Radiation Safety | Established | Established | Same as predicate |
| RF Shielding | Yes | Yes | Same as predicate |
| Designed to<br>meet Electrical<br>Safety<br>Standards | IEC 60601-1<br>IEC 60601-1-2<br>IEC 60606-1-6<br>IEC 60601-1-11 | IEC 60601-1<br>IEC 60601-1-2<br>IEC 60606-1-6<br>IEC 60601-1-11<br>IEC 60601-2-3 | Additional safety<br>standard that is<br>specific to<br>shortwave medical<br>devices does not<br>raise issues of<br>safety or<br>effectiveness |
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| Performance<br>Data | The following performance data were provided in support of the substantial<br>equivalence determination. |
|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| | Electrical Safety and electromagnetic compatibility (EMC)…
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Part 1 — Search, results, and everyday workflows 16 min
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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.
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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.
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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.
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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.
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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.
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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.
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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.
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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.
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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.