BARBIE (polymacon) Daily Wear Soft (Hydrophilic) Contact Lens are indicated for the correction of visual acuity in aphakic and not-aphakic persons with myopia. The lens may be worn by persons who exhibit refractive astigmatism of 0.50 diopters or less where the astigmatism does not interfere with visual acuity. The lens is available tinted and used to enhance or alter the apparent color of the eye. Daily wear replacement schedules may vary from patient and should be decided by eyecare practitioners in consultation with their patients. Frequent/Planned Replacement Wear: Eyecare practitioners may prescribe any of the above lenses for frequent/planned replacement wear, with cleaning, disinfection and scheduled replacement. When prescribed for frequent/planned replacement wear, the lens may be disinfected using a chemical disinfecting system. Disposable Wear: Eyecare practitioners may prescribe any of the above lenses for Daily Disposable Wear. When prescribed for Daily Disposable Wear, the lenses are not to be used with disinfecting systems as they are to be discarded after a single use.
Device Story
Spherical, soft (hydrophilic) contact lens; fabricated from polymacon (62% polymer, 38% water); cosmetic tinting via sandwich structure using listed color additives. Acts as refractive medium to focus light on retina; conforms to corneal curvature. Prescribed by eyecare practitioners for daily wear; available for frequent/planned replacement (with cleaning/disinfection) or daily disposable use. Supplied sterile in foil blister packs with saline solution. Benefits include vision correction and cosmetic eye color alteration.
Clinical Evidence
No clinical data. Substantial equivalence established through non-clinical bench testing, including physical, optical, physicochemical, and mechanical performance tests (ISO 18369-2/3/4, ASTM D882-18) and biocompatibility testing (ISO 10993).
Technological Characteristics
Material: Polymacon (HEMA cross-linked with EGDMA). Water content: 38%. Oxygen permeability: 9.01x10^-11 (cm²/s)(ml O₂/(ml·mmHg)) at 35°C. Refractive index: 1.435. Modulus: 0.90 MPa. Diameter: 13.50-14.50 mm. Base curve: 8.00-9.00 mm. Sterilization: Moist heat. Non-ionic, low water content (Group I).
Indications for Use
Indicated for correction of visual acuity in aphakic and non-aphakic persons with myopia and refractive astigmatism of 0.50 diopters or less. Available tinted for cosmetic eye color enhancement.
Regulatory Classification
Identification
A soft (hydrophilic) contact lens is a device intended to be worn directly against the cornea and adjacent limbal and scleral areas of the eye to correct vision conditions or act as a therapeutic bandage. The device is made of various polymer materials the main polymer molecules of which absorb or attract a certain volume (percentage) of water.
{0}------------------------------------------------
Image /page/0/Picture/0 description: The image shows the logo for the U.S. Food & Drug Administration (FDA). On the left is the Department of Health & Human Services logo. To the right of that is the FDA logo, with the letters "FDA" in a blue square. Next to that is the text "U.S. FOOD & DRUG ADMINISTRATION" in blue.
September 8, 2022
Shenzhen Dashicheng Optical Technology Co., Ltd. % Grace Liu Consultant Shenzhen Joyantech Consulting Co., Ltd. 1713A, 17th Floor, Block A, Zhongguan Times Square Shenzhen, Guangdong 518000 China
Re: K220143
Trade/Device Name: BARBIE (polymacon) Daily Wear Soft (Hydrophilic) Contact Lens Regulation Number: 21 CFR 886.5925 Regulation Name: Soft (Hydrophilic) Contact Lens Regulatory Class: Class II Product Code: LPL, MVN Dated: August 3, 2022 Received: August 3, 2022
Dear Grace Liu:
We have reviewed your Section 510(k) premarket notification of intent to market the device referenced above and have determined the device is substantially equivalent (for the indications for use stated in the enclosure) to legally marketed predicate devices marketed in interstate commerce prior to May 28, 1976, the enactment date of the Medical Device Amendments, or to devices that have been reclassified in accordance with the provisions of the Federal Food, Drug, and Cosmetic Act (Act) that do not require approval of a premarket approval application (PMA). You may, therefore, market the device, subject to the general controls provisions of the Act. Although this letter refers to your product as a device, please be aware that some cleared products may instead be combination products. The 510(k) Premarket Notification Database located at https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfpmn/pmn.cfm identifies combination product submissions. The general controls provisions of the Act include requirements for annual registration, listing of devices, good manufacturing practice, labeling, and prohibitions against misbranding and adulteration. Please note: CDRH does not evaluate information related to contract liability warranties. We remind you, however, that device labeling must be truthful and not misleading.
If your device is classified (see above) into either class II (Special Controls) or class III (PMA), it may be subject to additional controls. Existing major regulations affecting your device can be found in the Code of Federal Regulations, Title 21, Parts 800 to 898. In addition, FDA may publish further announcements concerning your device in the Federal Register.
Please be advised that FDA's issuance of a substantial equivalence determination does not mean that FDA has made a determination that your device complies with other requirements of the Act or any Federal
{1}------------------------------------------------
statutes and regulations administered by other Federal agencies. You must comply with all the Act's requirements, including, but not limited to: registration and listing (21 CFR Part 807); labeling (21 CFR Part 801); medical device reporting (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-safetyreporting-combination-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 titled, "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-devices/medical-device-safety/medical-devicereporting-mdr-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/medical-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,
J. Angelo Green, Ph.D. Assistant Director DHT1A: Division of Ophthalmic Devices OHT1: Office of Ophthalmic, Anesthesia, Respiratory, ENT and Dental Devices Office of Product Evaluation and Quality Center for Devices and Radiological Health
Enclosure
{2}------------------------------------------------
## Indications for Use
510(k) Number (if known) K220143
#### Device Name
BARBIE (polymacon) Daily Wear Soft (Hydrophilic) Contact Lens
#### Indications for Use (Describe)
BARBIE (polymacon) Daily Wear Soft (Hydrophilic) Contact Lens are indicated for the correction of visual acuity in aphakic and not-aphakic persons with myopia. The lens may be worn by persons who exhibit refractive astigmatism of 0.50 diopters or less where the astigmatism does not interfere with visual acuity. The lens is available tinted and used to enhance or alter the apparent color of the eye.
Daily wear replacement schedules may vary from patient and should be decided by eyecare practitioners in consultation with their patients.
#### Frequent/Planned Replacement Wear:
Eyecare practitioners may prescribe any of the above lenses for frequent/planned replacement wear, with cleaning, disinfection and scheduled replacement. When prescribed for frequent/planned replacement wear, the lens may be disinfected using a chemical disinfecting system.
Disposable Wear:
Eyecare practitioners may prescribe any of the above lenses for Daily Disposable Wear. When prescribed for Daily Disposable Wear, the lenses are not to be used with disinfecting systems as they are to be discarded after a single use.
Type of Use (Select one or both, as applicable)
| ☑ Prescription Use (Part 21 CFR 801 Subpart D) |
|------------------------------------------------|
| ☐ Over-The-Counter Use (21 CFR 801 Subpart C) |
#### CONTINUE ON A SEPARATE PAGE IF NEEDED.
This section applies only to requirements of the Paperwork Reduction Act of 1995.
#### *DO NOT SEND YOUR COMPLETED FORM TO THE PRA STAFF EMAIL ADDRESS BELOW.*
The burden time for this collection of information is estimated to average 79 hours per response, including the time to review instructions, search existing data sources, gather and maintain the data needed and complete and review the collection of information. Send comments regarding this burden estimate or any other aspect of this information collection, including suggestions for reducing this burden, to:
> Department of Health and Human Services Food and Drug Administration Office of Chief Information Officer Paperwork Reduction Act (PRA) Staff PRAStaff(@fda.hhs.gov
"An agency may not conduct or sponsor, and a person is not required to respond to, a collection of information unless it displays a currently valid OMB number."
{3}------------------------------------------------
# 510(k) Summary - K220143
# 1. Contact Details
#### 1.1 Applicant information
| Applicant Name | Shenzhen Dashicheng Optical Technology Co., Ltd. |
|----------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Address | 101, 201 and 301, Unit 3, Building 1, Wanjiening Industrial<br>Park, No. 1450, Guanguang Road, Jutang Community,<br>Fucheng Sub-district, Longhua District, Shenzhen,<br>Guangdong, China |
| Contact person | Jiayi Li |
| Phone No. | +86-136 3296 6073 |
| E-mail | lijiayi6073@dingtalk.com |
| Date Prepared | 2022-01-11 |
#### 1.2 Submission Correspondent
Image /page/3/Picture/5 description: The image shows a logo with a green circle containing a stylized white tiger head. Above the circle are three pairs of green wings, symmetrically arranged. Below the circle, there are four Chinese characters, also in green, which appear to be the name of the organization or company associated with the logo.
| | Shenzhen Joyantech Consulting Co., Ltd. |
|-------------------------|-------------------------------------------------------|
| | 1713A, 17th Floor, Block A, Zhongguan Times Square, |
| | Nanshan District, Shenzhen, Guangdong Province, China |
| Phone No. | +86-755-86069197 |
| Contact person | Grace Liu; Field Fu; |
| Contact person's e-mail | grace@cefda.com; field@cefda.com |
| Website | http://www.cefda.com |
#### 2. Device Information`
| Trade name | BARBIE (polymacon) Daily Wear Soft (Hydrophilic)<br>Contact Lens |
|---------------------|------------------------------------------------------------------|
| Common name | Soft (Hydrophilic) Contact Lens |
| Classification | II |
| Classification name | Lenses, Soft Contact, Daily Wear |
| Product code | LPL, MVN |
| Regulation No. | 21 CFR 886.5925 |
#### 3. Legally Marketed Predicate Device
| Trade Name | VASSEN COLOR (polymacon) Daily Wear Soft (hydrophilic)<br>Contact Lenses (Clear & Tinted) |
|---------------|-------------------------------------------------------------------------------------------|
| 510(k) Number | K141699 |
| Product Code | LPL, MVN |
| Manufacturer | Vassen Co., Ltd. |
## 4. Device Description
BARBIE (polymacon) Daily Wear Soft (Hydrophilic) Contact Lens is a spherical lens. It is fabricated from polymacon which has been adopted by the United Stated Adopted
{4}------------------------------------------------
Names Council (USAN). The hydrophilic nature of this material allows the lens to become soft and pliable when immersed in an aqueous solution.
The nonionic lens material, polymacon, is a hydrophilic polymer of 2-hydroxyethyl methacrylate (HEMA) cross-linked with ethylene glycol dimethacrylate (EGDMA), initiated by 2, 2'-azobisisobutyronitrile (AIBN). The lens consists of 62% polymacon and 38% water by weight when immersed in standard saline solution.
BARBIE (polymacon) Daily Wear Soft (Hydrophilic) Contact Lens is available cosmetic tinted to enhance or alter the apparent color of the eye. It is tinted in an annular pattern, providing a clear optic zone, using a combination of one or more of the following 'listed' color additives:
| Color additive | Listing No. |
|----------------------|-----------------|
| Reactive black 5 | 21 CFR 73.3121 |
| Iron oxides | 21 CFR 73.3125 |
| Solvent Yellow 18 | 21 CFR 73.3122 |
| Titanium dioxide | 21 CFR 73.3126 |
| Carbazole violet | 21 CFR 73.3107 |
| Pigment Blue 36 | 21 CFR 73.3110a |
| Phthalocyanine green | 21 CFR 73.3124 |
The proposed lenses contain only the amount of color additives to accomplish the intended coloring effect. The proposed color lenses are manufactured by sandwiching the pattern layer containing color additives between two layers of lens materials (polymacon). As part of the manufacturing process, the color lenses are thoroughly washed to remove the unbound reactive color additives. Because of the 'sandwich' structure, the color additives will not be removed by lens handling and cleaning/disinfecting procedures. The cosmetic tinting pattern has a minimum clear pupil diameter of 6.0 mm.
In the hydrated state, BARBIE (polymacon) Daily Wear Soft (Hydrophilic) Contact Lens conforms to the curvature of the eye covering the cornea and extending slightly beyond the limbus, and it acts as a refracting media to focus light rays on the retina. If the lens dries out, it will become hard and appear somewhat warped; however, it will return to its proper configuration when completely rehydrated in the proper storage solution compatible with the eye.
BARBIE (polymacon) Daily Wear Soft (Hydrophilic) Contact Lens is available in the spherical configuration with the following features and properties:
| Total diameter: | 13.50 mm to 14.50 mm, step:0.10 mm |
|--------------------|------------------------------------|
| Base curve: | 8.00 mm to 9.00 mm, step: 0.10 mm |
| Center thickness: | 0.050 mm to 0.120 mm |
| Back vertex power: | -10.00D to 0.00D, step: 0.25D |
The physical properties of the proposed lens are:
{5}------------------------------------------------
| Refractive index: | 1.435 |
|----------------------|------------------------------------------------------------------------|
| Light Transmission: | ≥95% (at clear region corresponding to pupil, minimum 6.0 mm diameter) |
| Surface character: | Hydrophilic |
| Water content: | 38% |
| Oxygen permeability: | 9.01×10-11 (cm²/s) [ml O₂/(ml·mmHg)] at 35°C (revised Fatt method) |
BARBIE (polymacon) Daily Wear Soft (Hydrophilic) Contact Lens is supplied sterile in the foil blister pack containing standard saline solution.
## 5. Intended Use/Indication for Use
BARBIE (polymacon) Daily Wear Soft (Hydrophilic) Contact Lens are indicated for the correction of visual acuity in aphakic and not-aphakic persons with non-diseased eyes with myopia. The lens may be worn by persons who exhibit refractive astigmatism of 0.50 diopters or less where the astigmatism does not interfere with visual acuity. The lens is available tinted and used to enhance or alter the apparent color of the eye.
Daily wear replacement schedules may vary from patient and should be decided by eyecare practitioners in consultation with their patients.
Frequent/Planned Replacement Wear:
Eyecare practitioners may prescribe any of the above lenses for frequent/planned replacement wear, with cleaning, disinfection and scheduled replacement. When prescribed for frequent/planned replacement wear, the lens may be disinfected using a chemical disinfecting system.
Disposable Wear:
Eyecare practitioners may prescribe any of the above lenses for Daily Disposable Wear. When prescribed for Daily Disposable Wear, the lenses are not to be used with disinfecting systems as they are to be discarded after a single use.
# 6. Substantial Equivalence Comparison
| Comparison<br>item | Proposed Device (K220143) | Predicate Device (K141699) | Comment |
|-----------------------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-----------|
| Manufacturer | Shenzhen Dashicheng Optical<br>Technology Co., Ltd. | Vassen Co., Ltd. | None |
| Product Name | BARBIE (polymacon) Daily Wear<br>Soft (Hydrophilic) Contact Lens | VASSEN COLOR (polymacon)<br>Daily Wear Soft (hydrophilic)<br>Contact Lenses (Clear & Tinted) | None |
| Product Code | LPL, MVN | LPL, MVN | Same |
| Regulation<br>Number | 21 CFR 886.5925 | 21 CFR 886.5925 | Same |
| Classification | Class II | Class II | Same |
| Prescription Use | Yes | Yes | Same |
| Intended Use /<br>Indications for<br>Use | BARBIE (polymacon) Daily Wear<br>Soft (Hydrophilic) Contact Lens<br>are indicated for the correction of<br>visual acuity in aphakic and<br>not-aphakic persons with<br>non-diseased eyes with myopia.<br>The lens may be worn by<br>persons who exhibit refractive<br>astigmatism of 0.50 diopters or<br>less where the astigmatism does<br>not interfere with visual acuity.<br>The lens is available tinted and<br>used to enhance or alter the<br>apparent color of the eye.<br>Daily wear replacement<br>schedules may vary from patient<br>to patient and should be decided<br>by eyecare practitioners in<br>consultation with their patients.<br>Frequent/Planned Replacement<br>Wear:<br>Eyecare practitioners may<br>prescribe any of the above lenses<br>for frequent/planned replacement<br>wear, with cleaning, disinfection<br>and scheduled replacement.<br>When prescribed for<br>frequent/planned replacement<br>wear, the lens may be disinfected<br>using a chemical disinfecting<br>system.<br>Disposable Wear:<br>Eyecare practitioners may<br>prescribe any of the above lenses<br>for Daily Disposable Wear. When<br>prescribed for Daily Disposable<br>Wear, the lenses are not to be<br>used with disinfecting systems as<br>they are to be discarded after a<br>single use. | The VASSEN COLOR<br>(polymacon) Spherical Soft<br>Contact Lenses for daily wear are<br>indicated for the correction of<br>visual acuity in aphakic and not<br>aphakic persons with<br>non-diseased eyes with myopia<br>or hyperopia. The lens may be<br>worn by persons who exhibit<br>refractive astigmatism of 0.50<br>diopters or less where the<br>astigmatism does not interfere<br>with visual acuity. The lens is<br>available clear or tinted and may<br>be used to enhance or alter the<br>apparent color of the eye.<br>Daily wear replacement<br>schedules may vary from patient<br>to patient and should be decided<br>by eyecare practitioners in<br>consultation with their patients.<br>Frequent/Planned Replacement<br>Wear:<br>Eyecare practitioners may<br>prescribe any of the above lenses<br>for frequent/planned replacement<br>wear, with cleaning disinfection<br>and scheduled replacement.<br>When prescribed for<br>frequent/planned replacement<br>wear, the lens may be disinfected<br>using a chemical disinfecting<br>system.<br>Disposable Wear:<br>Eyecare practitioners may<br>prescribe any of the above lenses<br>for Daily Disposable Wear. When<br>prescribed for Daily Disposable<br>Wear the lenses are not to be<br>used with disinfecting systems as | Similar |
| | | they are to be discarded after a single use. | |
| Functionality | The contact lenses act as a refractive medium that focus light rays from near and distant objects on the retina. | The contact lenses act as a refractive medium that focus light rays from near and distant objects on the retina. | Same |
| Lens Design | Spherical | Spherical | Same |
| Manufacturing<br>Process | Fully-molded | Fully-molded | Same |
| Lens Material | Polymacon | Polymacon | Same |
| Material<br>Classification | Group I<br>Low water content (<50%),<br>Nonionic | Group I<br>Low water content (<50%),<br>Nonionic | Same |
| Color Additives | Reactive Black 5<br>Iron Oxides<br>Solvent Yellow 18<br>Titanium Dioxide<br>Carbazole Violet<br>Pigment Blue 36<br>Phthalocyanine Green | C.I. Reactive black 5<br>Iron Oxide (Red)<br>D&C Yellow 10<br>Titanium Dioxide<br>D&C Green 6<br>C.I. Reactive Blue 19 | Different |
| Storage Solution | Standard saline solution | Standard saline solution | Same |
| Primary<br>Packaging | Foil blister pack | Foil blister pack | Same |
| Total Diameter | 13.50 mm to 14.50 mm | 13.00 mm to 15.00 mm | Similar |
| Base Curve | 8.00 mm to 9.00 mm | 8.0 mm to 9.0 mm | Same |
| Center<br>Thickness<br>(varies with<br>power) | 0.050 mm to 0.120 mm | 0.06 mm to 0.17 mm | Similar |
| Power Range | -10.00D to 0.00D | -10.00D to +3.00D | Similar |
| Water Content | 38% ±2 % | 38% ±2 % | Same |
| Light<br>Transmission | ≥95% | ≥95% | Same |
| Refraction Index | 1.435 | 1.439…
Predicate graph will load when search results are available.
Embedding visualization will load when search results are available.
PDF viewer will load when search results are available.
Loading panels...
Select an item from Submissions
Click any panel, subpart, regulation, product code, or device to see details here.
Section Matches
Results will appear here.
Product Code Matches
Results will appear here.
Special Control Matches
Results will appear here.
Loading collections...
Loading
My Alerts
You will receive email notifications based on the filters and frequency you set for each alert.
Sort by:
Create Alert
Search Filters
Agent Token
Create a read-only bearer token for Claude, ChatGPT, or other agents that can call HTTP APIs.
Copy this now. It will not be shown again.
Connected apps
Apps you authorized through browser sign-in. Disconnecting revokes their access immediately.
Learn the FDA Browser
Two short videos show you everything — or skip straight to the written tutorial if you'd rather read. You can reopen this any time from the Tutorial button in the top bar.
Part 1 — Search, results, and everyday workflows 16 min
Part 2 — Embeddings: the galaxy map 3 min
1. Search: exact and fuzzy
Type a phrase like "coronary artery calcification" into the search box. You get two kinds of results. Exact results match the literal phrase — prefix searches work ("coronary artery calcificati") but suffix searches do not. Fuzzy results match on the meaning and intent of your phrase rather than the exact words, and are sorted by relevance score. Hover over the Exact or Fuzzy badge on any row to see exactly why it matched.
Use the checkboxes above the results to narrow: SaMD keeps only software-only devices, AI / ML keeps only devices with AI.
Exact vs. fuzzy search: what's the difference?
Exact matches on the literal phrase (prefix search works, suffix does not). Fuzzy matches on the meaning and intent of the phrase rather than the exact words. Hover over the badge on any row to see why it matched.
You search "coronary artery calcification" and want only software devices with AI. What two filters do you apply?
Narrow by SaMD (software-only devices), then narrow by AI/ML (devices with AI).
2. The results table
Scroll right in the results table. The intended use is extracted for you — no need to open the PDF. The device story gives a high-level snapshot of what the device does and how it's used. The AI Performance sub-table shows each output name, acceptance criteria, observed values, and development/test dataset descriptions — the same format Innolitics uses for regulatory strategy outputs, and the fastest high-level fingerprint of an AI device. It is AI-generated but has been very reliable in practice.
Where do you find a device's intended use without opening the PDF?
Scroll right in the search results table. The intended use column is extracted for you; no need to dig into the 510(k) summary PDF.
What does the AI Performance sub-table show, and why is it useful?
Output name, acceptance criteria, observed values, development dataset description, and test dataset description. It's the same format we use for regulatory strategy output and Fast 510(k) input, and the fastest high-level fingerprint of an AI device. AI-generated but reliable in practice.
3. Judging fuzzy relevance
Fuzzy results trail off in relevance as you scroll. Use three signals to decide how far down to go: the fuzzy badge explanations, the intended use column, and whether your target output (e.g., Cobb angle) still appears in the AI Performance sub-table. Once it stops appearing, you're past the relevant zone. A top hit with a low score (~0.4) and a stretched explanation is a hint the closest predicates are far away — the project may be headed for De Novo. Note the fuzzy search is a pattern match: it doesn't handle negation ("not") well, and hardware devices can appear — filter by SaMD/AI ML to cut them.
How do you judge how far down fuzzy search results to go?
Use the relevancy signals: the fuzzy badge explanations, the intended use column, and whether the target output (e.g., Cobb angle) still appears in the AI Performance sub-table. Once it stops appearing, results are trailing off in relevancy.
4. Device detail page: chat and citations
Click a device name to open its detail page: device facts on the left, a chat window on the right. Ask something like "Describe the training data". The answer carries little citation bubbles — click one to jump to the highlighted passage in the source PDF, so you can verify every AI answer against the document. There's also a Download PDF button for sharing.
How do you verify an AI chat answer on the device detail page?
Click the citation bubbles to jump to the relevant highlight in the source document.
Reading rule for every project: how many summaries do you read in full?
At least the three most relevant 510(k) or De Novo summaries, in full. After that, use targeted chat questions to confirm your memory quickly. The tool supports this professional habit — it doesn't replace it.
5. Side-by-side comparison
Select multiple rows in the results table (aim for under ~10), then open the PDF Viewer tab. Ask one question — it goes to all selected devices in parallel, each with citations. This is the fastest way to compare and contrast devices: training data, PCCP scope, how they handled adding new scanners, and so on.
What does the side-by-side PDF viewer mode do?
Select multiple devices, open the PDF viewer tab, and ask one question (e.g., "Describe the training data"). It queries all selected devices simultaneously with citations, so you can compare and contrast quickly.
6. Collections
With rows selected, go to the Collections tab and create a labeled collection (e.g., "Cobb Angle Project"). Reload that selection any time — before a client call, pull up the collection and ask questions across all of its devices at once.
How do you save a set of selected devices for later use?
Select the rows, go to the Collections tab, and create a labeled collection (e.g., "Cobb Angle Project"). You can reload the selection anytime and carry it into the PDF viewer and other tabs that support selections.
7. Product codes and the regulations tree
Click a product code in the results to jump to it in the regulations tree — identification text, sibling product codes, and devices you can open in a PDF viewer on the right. Click a regulation number to see its identification, special controls, and related product codes. You can also search by product code or regulation number at the top of the tree. Always read the special controls if any exist for your device — it broadens your search and sharpens pre-kickoff research.
What can you do from the regulations tree view?
Browse product codes and regulation numbers, read the identification text and special controls, browse sibling product codes, open device PDFs on the right, and search by product code or regulation number at the top of the tree.
8. Chart view
Click Show Chart and segment by regulation number (or product code) to see which regulations dominate your result set. Clicking a regulation takes you into the regulations tree. Great for spotting that most matches are, say, hardware laparoscopic devices — a cue to go back and filter.
How do you see which regulations dominate a search result set?
Click "Show Chart" and segment by Regulation Number. Clicking a regulation takes you to the regulations tree.
9. The predicate graph
Open the Predicates tab for a family-tree view of predicate relationships. Click a node to trace its parents and children; selections from search carry over pre-selected. Commonly predicated devices are worth reading — a lot of people predicated them for a reason. The visual lineage is also handy on client calls, e.g. to show how a predicate family evolved and justify why your predicate still holds.
In the predicate graph, why are commonly predicated devices worth reading?
A lot of people predicated them for a reason. Clicking a node traces parents and children, and selections from search carry over pre-selected.
10. Embeddings: the galaxy map
The Embeddings tab plots every matching document in a 2-D "galaxy map" where semantically similar devices cluster together. Hover or click clusters to explore, and let AI label the clusters for you. Embeddings beat product codes for grouping: two devices can carry different product codes (LLZ vs. QIH) yet do the same thing — the embedding captures the meaning of the intended use and device story. This is also exactly how retrieval-augmented generation (RAG) works under the hood, and it makes a great visual on client calls.
Try it yourself
Head to the search page and work through a few of these AI/ML fuzzy searches to build intuition: perivascular fat on CT · aortic valve calcification opportunistic screening on noncontrast CT · breast cancer prediction on digital pathology slides · autism detection · gestational age prediction · a hearing aid that can also detect a pulse · foundation model based analysis of ECG · large language models · penetration test. Watch how the relevance scores, intended use, and AI Performance tables tell you when results stop being meaningful.