Micro-current facial cold and hot service (model: TPML-100)
K213039 · Li-Tek Electronics Technology C0., Ltd. · OLP · May 25, 2022 · General, Plastic Surgery
Device Facts
Record ID
K213039
Device Name
Micro-current facial cold and hot service (model: TPML-100)
Applicant
Li-Tek Electronics Technology C0., Ltd.
Product Code
OLP · General, Plastic Surgery
Decision Date
May 25, 2022
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 878.4810
Device Class
Class 2
Attributes
Therapeutic
Indications for Use
Micro-current vibration facial cold and hot service is an over the counter device that is indicated for the treatment of mild to moderate inflammatory acne and facial stimulation for the over the counter aesthetic use.
Device Story
Hand-held, reusable device for home aesthetic use; powered by internal rechargeable lithium battery. Features three metal heads for micro-current (EMS) facial stimulation and warming/cooling, plus two LED windows (red 630nm, blue 415nm) for acne treatment. Includes micro-motor for vibration. User applies device to facial skin; selects modes for EMS, LED irradiation, vibration, or thermal therapy. EMS function delivers low-frequency micro-current to facial skin; LED function provides narrow spectral bandwidth light. Device output is user-adjustable. Intended to provide facial stimulation and treat inflammatory acne; benefits include aesthetic skin improvement and acne management.
Clinical Evidence
No clinical data. Safety and performance demonstrated via lab bench testing, including IEC 60601-1, IEC 60601-1-2, IEC 60601-1-11, IEC 60601-2-10, IEC 60601-2-57, and ISO 10993-5/10 biocompatibility testing. Usability testing confirmed lay user ability to self-select, operate safely, and understand labeling.
Indicated for treatment of mild to moderate inflammatory acne and facial stimulation for over-the-counter aesthetic use in the home environment.
Regulatory Classification
Identification
(1) A carbon dioxide laser for use in general surgery and in dermatology is a laser device intended to cut, destroy, or remove tissue by light energy emitted by carbon dioxide.(2) An argon laser for use in dermatology is a laser device intended to destroy or coagulate tissue by light energy emitted by argon.
Predicate Devices
LED Light Therapy Device, Model: KN-7000C (K180900)
Avazzia OTC TENS for aesthetics, Model: BEST-AV1: EZZI-LIFT Device (K191951)
Submission Summary (Full Text)
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May 25, 2022
Li-Tek Electronics Technology C0., Ltd % Jet Li Regulation manager Guangdong Jianda Medical Technology Co., Ltd. 6F, No.1 TianTai road, Science City, LuoGang District Guangzhou, Guangdong China
Re: K213039
Trade/Device Name: Micro-current facial cold and hot service (model: TPML-100) Regulation Number: 21 CFR 878.4810 Regulation Name: Laser Surgical Instrument For Use In General And Plastic Surgery And In Dermatology Regulatory Class: Class II Product Code: OLP, NFO Dated: March 29, 2022 Received: April 15, 2022
Dear Jet Li:
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 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.
Purva Pandya Assistant Director DHT4A: Division of General Surgery Devices OHT4: Office of Surgical and Infection Control 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) K213039
#### Device Name
Micro-current vibration facial cold and hot service (model: TPML-100)
Indications for Use (Describe)
Micro-current vibration facial cold and hot service is an over the counter device that is indicated for the treatment of mild to moderate inflammatory acne and facial stimulation for over the counter aesthetic use.
Type of Use (Select one or both, as applicable)
Prescription Use (Part 21 CFR 801 Subpart D)
X Over-The-Counter Use (21 CFR 801 Subpart C)
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### Date of the summary prepared: May 24, 2022
# 510(k) Summary
## K213039
This summary of 510(K) safety and effectiveness information is being submitted in
accordance with the requirement of 21 CFR 807.92. This is a Traditional 510(K) submission,
and there were no prior submissions for the subject device.
### 1. Submitter's Information
#### Sponsor
- � Company Name: Li-Tek Electronics Technology Co., Ltd.
- Address: No. 8~13, the industrial park of Jinshagang, Shixia village, Dalang town, � Dongguan city, Guangdong, China
- � Phone: + 86-769-83117755
- � Email: quality5@li-tek.com
- Contact Person (including title): Barry Yuan (Quality Director) �
### Application Correspondent:
- � Guangdong Jianda Medical Technology Co., Ltd.
- � Address: 6F, No.1 TianTai road, Science City, LuoGang District, GuangZhou City, China
- � Contact Person: Mr. Jett Lee
- Title: Regulation Manager �
- � Tel: +86-13512755282
- � Email: jianda-lee@foxmail.com
### 2. Subject Device Information
- � 510(k) number: K213039
- � Type of 510(k) submission: Traditional
- Classification: Over-The-Counter Powered Light Based Laser For Acne; �
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Transcutaneous electrical nerve stimulator for pain relief
- Trade Name: Micro-current vibration facial cold and hot service �
- Model: TPML-100 �
- Review Panel: General& Plastic Surgery / Neurology �
- � Product Code: OLP / NFO
- � Regulation Number: 21 CFR 878.4810 / 882.5890
- � Requlation Class: 2
### 3. Predicate Device Information
#### Primary Predicate Device I
- 510(k) number: K180900 �
- � Sponsor: UVBIOTEK, LLC
- � Classification: Over-The-Counter Powered Light Based Laser For Acne
- � Trade Name: LED Light Therapy Device, Model: KN-7000C
- � Review Panel: General & Plastic Surgery
- � Product Code: OLP
- Regulation Number: 21 CFR 878.4810 �
- Regulation Class: 2 �
### Secondary Predicate Device II
- 510(k) number: K201906 �
- � Sponsor: LG Electronics, Inc.
- � Classification: Transcutaneous electrical nerve stimulator for pain relief
- � Trade Name: Trinity ELE Plus Facial Toning Device
- � Model: Trinity ELE Plus
- � Review Panel: Neurology
- Product Code: NFO �
- Regulation Number: 21 CFR 882.5890 �
- � Regulation Class: 2
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### Predicate Device III
- 510(k) number: K162652 �
- � Sponsor: Li-tek Electronic Technology Corporation.
- Classification: Transcutaneous electrical nerve stimulator for pain relief �
- � Trade Name: Smart Photon Micro-current Device
- � Model: EP-300
- � Review Panel: Neurology
- Product Code: NFO �
- � Regulation Number: 21 CFR 882.5890
- � Regulation Class: 2
### Reference Device
- � 510(k) number: K191951
- � Sponsor: Avazzia, Inc.
- � Classification: Transcutaneous electrical nerve stimulator for pain relief
- � Trade Name: Avazzia OTC TENS for aesthetics
- Model: BEST-AV1TM: EZZI-LIFTT™ Device �
- Review Panel: Neurology �
- � Product Code: NFO
- � Regulation Number: 21 CFR 882.5890
- � Regulation Class: 2
### 4. Device Description
The Micro-current vibration facial cold and hot service device (Model: TPML-100) is a hand-held, non-sterile, reusable device designed to achieve the aesthetic effect. It consists of main unit, and USB cable. The device is supplied by internal rechargeable lithium battery, which can be recharged by external charger through the USB cable. The device is un-usable when charging.
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The device is only home environment use, which has three metal heads (Dual / Single), and two LED light windows (Red / Blue) to provides following functions:
- a) EMS (micro current output stimulation) function. The device generates a low-frequency micro-current on the Dual Heads which will applied in the facial skin to do facial stimulation.
- b) Red and Blue LED irradiation function. The device outputs the red light at the wavelength of 630 ± 10 nm and the blue light at the wavelength of 415 ± 10 nm to apply the light in narrow spectral bandwidth on facial skin to treat mild to moderate acne.
- c) Vibration function. The device generates different patterns of micro-vibration by a builtin micro motor to relax the facial skin. (This function is classified as class I and not need for 510K.)
- d) Warming and Cooling function. The device heats Dual Heads up to 44 ± 2 °C or cool the Single Head down to 10 ± 2 °C, to relax the facial skin with a warm or cold sensation. (This function is not for medical purpose.)
## 5. Intended Use / Indications for Use
Micro-current vibration facial cold and hot service is an over the counter device that is indicated for the treatment of mild to moderate inflammatory acne and facial stimulation for the over the counter aesthetic use.
## 6. Test Summary
Micro-current vibration facial cold and hot service has been evaluated for its safety and performance by lab bench testing as following:
- � IEC 60601-1:2012 , Medical Electrical Equipment - Part 1: General Requirements for Basic Safety and Essential Performance
- � IEC 60601-1-2:2014, Medical electrical equipment - Part 1-2: General requirements for basic safety and essential performance - Collateral standard: Electromagnetic compatibility
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- � IEC 60601-1-11:2015 Medical electrical equipment - part 1-11: general requirements for basic safety and essential performance - collateral standard: requirements for medical electrical equipment and medical electrical systems used in the home healthcare environment
- � IEC 60601-2-10:2012 AMD1:2016 Medical electrical equipment - Part 2-10: Particular requirements for the basic safety and essential performance of nerve and muscle stimulators
- � IEC 60601-2-57:2011 Medical Electrical Equipment - Part 2-57: Particular requirements for the basic safety and essential performance of non-laser light source equipment intended for therapeutic, diagnostic, monitoring and cosmetic/aesthetic use
- � ISO 10993-5:2009, Biological evaluation of medical devices -- Part 5: Tests for In Vitro cytotoxicity
- � ISO 10993-10:2010, Biological evaluation of medical devices -- Part 10: Tests for irritation and skin sensitization
## 7. Comparison to predicate device and conclusion
The technological characteristics, features, specifications, materials, and intended use of Micro-current facial cold and hot service is substantially equivalent to the predicate devices quoted above. Even there is minor difference on output waveform parameters and construction between subject device and predicate device. But the differences between the subject device and predicate devices do not raise new issues of safety or effectiveness.
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Micro-current vibration facial cold and hot service, Model: TPML-100 Subject Device:
| Device | Proposed Device | Predicate Device I | Predicate Device II | Predicate Device III | Reference Device |
|-------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|------------------------------------------------------------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| | | Primary | Secondary | Secondary | |
| 510(K) | K213039 | K180900 | K201906 | K162652 | K191951 |
| Manufacturer | Li-Tek Electronics<br>Technology Co., Ltd | Uvbiotek, LLC | Carol Cole Company dba<br>NūFACE | Li-Tek Electronics<br>Technology Co., Ltd | Avazzia, Inc |
| Product<br>Name | Micro-current vibration<br>facial cold and hot service<br>TPML-100 | LED Light Therapy Device<br>KN-7000C | Trinity ELE Plus Facial<br>Toning Device<br>Trinity ELE Plus | Smart Photon Micro-<br>current Device EP-300 | Avazzia OTC TENS for<br>Aesthetics<br>BEST-AV1<br>EZZI-LIFT Device |
| Classification | Class II, OLP / NFO<br>21<br>CFR878.4810/882.5890 | Class II, OLP<br>21 CFR878.4810 | Class II, NFO<br>21 CFR 882.5890 | Class II, NFO/OHS/OLP<br>21 CFR 882.5890 | Class II, NFO<br>21 CFR 882.5890 |
| Prescription/<br>OTC | OTC | OTC | OTC | OTC | OTC |
| Intended Use | Micro-current facial cold<br>and hot service is an over<br>the counter device that is<br>indicated for the treatment<br>of mild to moderate<br>inflammatory acne and<br>facial stimulation for the<br>over the counter aesthetic<br>use. | LED Light Therapy Device<br>is indicated for the<br>treatment of mild to<br>moderate inflammatory<br>acne. | The Trinity ELE Plus and<br>Trinity ELE Plus Pro are<br>intended for facial<br>stimulation and are<br>indicated for over the<br>counter cosmetic use. | For micro current<br>Stimulation mode: The<br>device is intended for<br>Facial stimulation and is<br>indicated for over-the<br>counter aesthetic use. | The Avazzia OTC TENS<br>for aesthetics, model<br>BEST-AV1TM: EZZI-<br>LIFTTM Device is indicated<br>for over-the-counter<br>aesthetic use including<br>facial and neck<br>stimulation or body skin<br>stimulation. |
| Power Supply | Charger (not included)<br>input: DC 5V, 1A | Adapter Input: 100-240V<br>a.c. 50/60Hz, 0.5A max. | Unknown | 3.7V, 800mAh<br>rechargeable<br>lithium battery | 3V |
| | Internal battery: 3.7Vd.c.<br>900mAh | Adapter Output: 5V d.c.<br>2A<br>Main unit input: 5V d.c.<br>2A/ Internal battery:<br>3.6Vd.c. 2200mAh | | | |
| Battery | Lithium-ion | Lithium-ion | Lithium-ion | Lithium-ion | 2* 1.5 V AA batteries |
| Software<br>Control | YES | YES | YES | YES | YES |
| Handheld | YES | YES | YES | YES | YES |
| Effective<br>irradiance | Blue light: 25 mw/cm²<br>±10%<br>Red light: 45 mw/cm²±10% | Blue light: 25±5 mw/cm²<br>Red light: 45±5 mw/cm² | / | / | / |
| LED Amount | 6 red LEDs<br>4 blue LEDs | 48 red LEDs<br>48 blue LEDs | / | / | / |
| Wavelength | Blue light: 415±10 nm<br>Red light: 630±10 nm | Blue light: 417±10 nm<br>Red light: 633±10 nm | / | / | / |
| Energy<br>Output | User adjustable for EMS | / | User adjustable, variable output frequency, microcurrent continuously alternates and delivered via dual chrome-plated precise wands | User adjustable for EMS | / |
| Special<br>Requirements | No | No | Requires Conductive Gel | Requires Conductive Gel | No |
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Micro-current vibration facial cold and hot service, Model: TPML-100 Subject Device:
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Micro-current vibration facial cold and hot service, Model: TPML-100 Subject Device:
| Waveform | Bi-phase square-wave | / | Pulsed Biphasic,<br>Modulated Square | Bi-phase square-wave | positive square wave<br>followed by a damped<br>sinusoidal waveformof |
|-------------------------------|---------------------------------------------------------------|---|------------------------------------------------------------------------------------------|------------------------------------------------|---------------------------------------------------------------------------|
| Type | pulse | / | | pulse | variable duration<br>depending on damping<br>and body loading |
| Maximum | 225 mV @500Ω, ±10% | | 170 mV @500Ω, ±10% | 1.49V @ 500Ω | -42V @ 500Ω |
| Output | 900 mV @2kΩ, ±10% | / | 688 mV @2kΩ, ±10% | 2.48V @ 2kΩ | -122V @ 2kΩ |
| Voltage | 3.86 V @10kΩ, ±10% | | 3.4 V @10kΩ, ±10% | 10.6V @ 10kΩ | -348V @ 10kΩ |
| Maximum<br>Output<br>Current | 450 μA @500Ω, ±10%<br>450 μA @2kΩ, ±10%<br>386 μA @10kΩ, ±10% | | 243 μA @500Ω, ±10%<br>245 μA @2kΩ, ±10%<br>246 μA @10kΩ, ±10% | 2.98mA @ 500Ω<br>1.24mA @ 2kΩ<br>1.06mA @ 10kΩ | 500 μA<br>363 μA @500Ω, ±20%<br>117 μA @2kΩ, ±20%<br>38 μA @10kΩ, ±20% |
| Pulse Period<br>(Pulse Width) | 4ms | / | Varies w/Frequency<br>(60 msec @ 8.33Hz) | 4ms | 1.1 |
| Output<br>Frequency<br>(Hz) | 57±3Hz | / | 0.3 - 50 Hz<br>(Default 8.3 Hz) | 60Hz | 15 to 121 |
| Net Charge | 0 μC @ 500Ω | / | 0 μC @ 500Ω | 0 μC @ 500Ω | 4 μC @ 500Ω |
| Maximum<br>current<br>density | 0.49mA/cm²@500Ω | / | Trinity ELE Plus<br>0.947 mA/cm² @ 10k Ω<br>Trinity ELE Plus Pro<br>1.165 mA/cm² @ 10k Ω | 0.524mA/cm²<br>@500Ω | Built-in, Y, Brush:<br>800 μA/cm² @500Ω<br>Pencil:<br>19,000 μA/cm² @500Ω |
| Maximum<br>Power | 0.20mW/cm²@ 500Ω | / | Trinity ELE Plus<br>2.331 mW/cm² @ 10k Ω | 0.216mW/cm²<br>@500Ω | Built-in, Y, Brush:<br>500μW/cm² @500Ω |
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Micro-current vibration facial cold and hot service, Model: TPML-100 Subject Device:
| Density | | | Trinity ELE Plus Pro | | Pencil: |
|---------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|------------------------------------------------|------------------------------------------------------------------------------------|--------------------------------------------------------------------------|
| | | | $3.525 mW/cm² @ 10K Ω$ | | $3,500μW/cm² @500Ω$ |
| Treatment<br>recommendat<br>ion | Hold treatment face in<br>contact with skin.<br>Apply blue light for<br>3 minutes per skin area,<br>followed by red light for 3<br>minutes per skin area.<br>Can be used daily.<br>Apply EMS micro-current<br>for 15 minutes per day.<br>Can be used for 2-3 times<br>per week. | Hold treatment face in<br>contact with skin. Apply<br>blue light for 3 minutes per<br>skin area, followed by red<br>light for 3 minutes per skin<br>area. Can be used daily. | Unknown | 15 minutes | max duration of use:<br>60 minutes |
| Main<br>Materials | PC, ABS, Stainless steel<br>(SUS 304) | Rigid ABS<br>Polycarbonate lens cover | ABS Thermoplastic<br>Chromium | PC, ABS, Stainless steel<br>(SUS 304) | Stainless steel 316 |
| Dimension | 188(L)×50(W)×55(H)mm | 257mm×165mm×70mm<br>(10.1in×6.5in×2.8in) | 6.1" H x 2.4" W x 1.2" D | -- | 2.6" X 4.7" X 1.35" |
| Net Weight | 233 g | 174g (6.1 oz) | Unknown | -- | 5.4 ounces |
| Safety and<br>EMC | IEC 60601-1<br>IEC 60601-1-2<br>IEC 60601-1-11<br>IEC 60601-2-10<br>IEC 60601-2-57 | IEC 60601-1<br>IEC 60601-1-2<br>IEC 60601-1-11<br>IEC 60601-2-57 | IEC 60601-1<br>IEC 60601-1-2<br>IEC 60601-1-11 | IEC 60601-1<br>IEC 60601-1-2<br>IEC 60601-1-11<br>IEC 60601-2-10<br>IEC 60601-2-57 | IEC 60601-1<br>IEC 60601-1-2<br>IEC 60601-2-10<br>ISO 14971<br>IEC 62366 |
| Biocompatibil<br>ity | ISO 10993-5<br>ISO 10993-10 | ISO 10993-5<br>ISO 10993-10 | ISO 10993-5<br>ISO 10993-10 | ISO 10993-5<br>ISO 10993-10 | / |
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## 8. Summary for clinical test
No Clinical Test conducted.
## 9. Usability Testing
Usability testing was conducted to demonstrate that the device and its labeling can meet the following requirements:
1) the lay user can self-select themselves as being appropriate users of this device by the external box labeling,
2) the lay user can apply the treatment safely and correctly according to the instructions for use, and
3) the lay user can understand all indications, contraindications, warnings and precautions, and be able to identify whether they are within any contraindicated group; and be able to understand the user manual.
## 10. Conclusion
The subject device Micro-current vibration facial cold and hot service has all features of the predicate devices for intended use. The few differences do not affect the safety and effectiveness of the subject device. Thus, the subject device is substantially equivalent to the predicate devices.
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Exact vs. fuzzy search: what's the difference?
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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.
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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.