The Desio (hioxifilcon D) Spherical Soft Contact Lenses for daily wear are indicated for the correction of refractive error in aphakic and not aphakic persons with myopia or hyperopia. The lens may be worn by persons who exhibit refractive astigmatism of 0.75 diopters or less where the astigmatism does not interfere with visual acuity. The lens is available clear or tinted and may be used to enhance or alter the apparent color of the eye. The Desio (hioxifileon D) Toric Soft Contact Lenses for daily wear are indicated for the correction of refractive error in aphakic and not aphakic persons with non-diseased eyes with myopia or hyperopia and/or possesses refractive astigmatism not exceeding 5.00 diopters. The lens is available clear or tinted and may be used to enhance or alter the apparent color of the eye. Daily wear replacement schedules may vary from patient and should be decided by eye care practitioners in consultation with their patients. Eye care 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. Eye care practitioners may prescribe any of the above lenses for single use daily disposable wear. When prescribed for daily disposable wear the lens is to be discarded after each removal.
Device Story
Soft hydrophilic contact lenses; hemispherical shells; molded spherical base curves; front surfaces. Material: hioxifilcon D (copolymer of 2-HEMA and GMA, cross-linked with EGDMA). Input: refractive error of patient eye. Operation: refractive medium focusing light on retina. Output: corrected vision. Used in clinical/home settings; prescribed by eye care practitioners. Tinted versions use pad-printing with FDA-listed color additives (Titanium Dioxide, Phthalocyanine Green, Carbazole Violet, Reactive Blue 19, C.I. Reactive black 5) in iris region. Includes UV-absorbing monomer. Daily wear; frequent/planned replacement or single-use disposable. Benefits: vision correction; cosmetic enhancement.
Clinical Evidence
No clinical data. Substantial equivalence supported by non-clinical bench testing including ISO 10993-5 cytotoxicity, ISO 10993-11 systemic toxicity, ISO 10993-10 acute ocular irritation, and physicochemical/mechanical property testing (refractive index, water content, Dk, tensile strength, modulus, UV/visible transmission).
Technological Characteristics
Material: hioxifilcon D (46% polymer, 54% water). FDA Group 2 (non-ionic, >50% water). Cast molded. UV-absorbing monomer included. Pad-printed tinting (6.0mm clear pupil). Oxygen permeability (Dk): 21.50. Refractive index: 1.40. Complies with ANSI Z80.20. Dimensions: 12.80-15.00mm diameter, 7.85-10.0mm base curve.
Indications for Use
Indicated for daily wear correction of refractive error (myopia/hyperopia) in aphakic and non-aphakic persons with non-diseased eyes. Spherical lenses for astigmatism ≤ 0.75D; Toric lenses for astigmatism ≤ 5.00D. Available clear or tinted for cosmetic eye color alteration.
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 of the U.S. Food and Drug Administration (FDA). The logo consists of two parts: the Department of Health & Human Services logo on the left and the FDA logo on the right. The FDA logo features the letters "FDA" in a blue square, followed by the words "U.S. FOOD & DRUG ADMINISTRATION" in blue text.
June 13, 2018
Qualimed SRL % Bret Andre Principal Consultant EyeReg Consulting, Inc. 6119 Canter Lane West Linn, OR 97068
Re: K181050
Trade/Device Name: Desio (hioxifilcon D) Daily Wear Soft (hydrophilic) Contact Lenses (Clear and Tinted) Regulation Number: 21 CFR 886.5925 Regulation Name: Soft (Hydrophilic) Contact Lens Regulatory Class: Class II Product Code: LPL, MVN Dated: April 16, 2018 Received: April 20, 2018
Dear Bret Andre:
We have reviewed your Section 510(k) premarket notification of intent to market the device referenced above and have determined the device is substantially equivalent (for the indications for use stated in the enclosure) to legally marketed predicate devices marketed in interstate commerce prior to May 28, 1976, the enactment date of the Medical Device Amendments, or to devices that have been reclassified in accordance with the provisions of the Federal Food, Drug, and Cosmetic Act (Act) that do not require approval of a premarket approval application (PMA). You may, therefore, market the device, subject to the general controls provisions of the Act. The general controls provisions of the Act include requirements for annual registration, listing of devices, good manufacturing practice, labeling, and prohibitions against misbranding and adulteration. Please note: CDRH does not evaluate information related to contract liability warranties. We remind you, however, that device labeling must be truthful and not misleading.
If your device is classified (see above) into either class II (Special Controls) or class III (PMA), it may be subject to additional controls. Existing major regulations affecting your device can be found in the Code of Federal Regulations, Title 21, Parts 800 to 898. In addition, FDA may publish further announcements concerning your device in the Federal Register.
{1}------------------------------------------------
Please be advised that FDA's issuance of a substantial equivalence determination does not mean that FDA has made a determination that your device complies with other requirements of the Act or any Federal statutes and regulations administered by other Federal agencies.
You must comply with all the Act's requirements, including, but not limited to: registration and listing (21 CFR Part 807): labeling
(21 CFR Part 801); medical device reporting (reporting of medical device-related adverse events) (21 CFR 803); good manufacturing practice requirements as set forth in the quality systems (OS) regulation (21 CFR Part 820); 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 http://www.fda.gov/MedicalDevices/Safety/ReportaProblem/default.htm.
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/DeviceRegulationandGuidance/) and CDRH Learn (http://www.fda.gov/Training/CDRHLearn). 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 (http://www.fda.gov/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 -S
for Malvina B. Eydelman, M.D.
Director Division of Ophthalmic and Ear, Nose and Throat Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
{2}------------------------------------------------
#### DEPARTMENT OF HEALTH AND HUMAN SERVICES Food and Drug Administration
### Indications for Use
510(k) Number (if known)
K181050
#### Device Name
Desio (hioxifilcon D) Daily Wear Soft (hydrophilic) Contact Lenses (Clear and Tinted)
#### Indications for Use (Describe)
The Desio (hioxifilcon D) Spherical Soft Contact Lenses for daily wear are indicated for the correction of refractive error in aphakic and not aphakic persons with myopia or hyperopia. The lens may be worn by persons who exhibit refractive astigmatism of 0.75 diopters or less where the astigmatism does not interfere with visual acuity. The lens is available clear or tinted and may be used to enhance or alter the apparent color of the eye.
The Desio (hioxifileon D) Toric Soft Contact Lenses for daily wear are indicated for the correction of refractive error in aphakic and not aphakic persons with non-diseased eyes with myopia or hyperopia and/or possesses refractive astigmatism not exceeding 5.00 diopters. The lens is available clear or tinted and may be used to enhance or alter the apparent color of the eye.
Daily wear replacement schedules may vary from patient and should be decided by eye care practitioners in consultation with their patients.
Eye care 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.
Eye care practitioners may prescribe any of the above lenses for single use daily disposable wear. When prescribed for daily disposable wear the lens is to be discarded after each removal.
Type of Use (Select one or both, as applicable)
| <span> <span style="font-size: 10px;"> </span> <span style="text-decoration: overline;">Prescription Use (Part 21 CFR 801 Subpart D)</span> </span> | <span> <span style="font-size: 10px;"> </span> Over-The-Counter Use (21 CFR 801 Subpart C) </span> |
|-----------------------------------------------------------------------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------|
|-----------------------------------------------------------------------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------|
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 comblete 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."
**Page 1 of 1**
{3}------------------------------------------------
## 510 (k) SUMMARY OF SAFETY AND EFFECTIVENESS
This summary of 510(k) safety and effectiveness information is being submitted in accordance with the requirements of SMDA 1990 and 21 CFR 807.92.
The assigned 510(k) number is: K181050
#### I. SUBMITTER
- April 16, 2018 Date Prepared:
- Qualimed SRL Name: Address: Corso Sempione 176 Busto Arsizio Varese, Italy 21052
| Contact Person: | Ms. Tereza Uhrova<br>Legal Representative |
|-----------------|--------------------------------------------------------------------------------|
| Phone number: | +39 0331 1629910 |
| Consultant: | Bret Andre<br>EyeReg Consulting, Inc<br>6119 Canter Ln.<br>West Linn, OR 97068 |
| Phone number: | (503) 372-5226 |
#### II. DEVICE
| Trade Name: | Desio (hioxifilcon D) Daily Wear Soft (hydrophilic) Contact Lenses<br>(Clear and Tinted) |
|-------------------------|------------------------------------------------------------------------------------------|
| Common<br>Name: | Contact Lens, Daily Wear |
| Classification<br>Name: | Soft (hydrophilic) Contact Lens (21 CFR 886.5925) |
| Regulatory<br>Class: | Class II |
| Product Code: | LPL; MVN |
{4}------------------------------------------------
### Purpose of 510(k) Submission:
~ New Device ~
#### III. PREDICATE DEVICE
The Desio (hioxifilcon D) Daily Wear Soft (hydrophilic) Contact Lens is substantially equivalent to the following predicate device:
- . "Extreme H2O 54% (hioxifilcon D) Soft Contact Lens" Hydrogel Vision Corporation 510(k) number: K051430 Primary Predicate
#### IV. DEVICE DESCRIPTION
The Desio (hioxifilcon D) Daily Wear Soft (hydrophilic) Contact Lenses are hemispherical shells with molded spherical base curves and molded front surfaces. The hydrophilic characteristics allow aqueous solutions to enter the lenses are fabricated from hioxifilcon D, which is a copolymer of 2-hydroxyethyl methacrylate (2-HEMA) and 2,3- Dihydroxypropyl Methacrylate (Glycerol Methacrylate, GMA), and cross-linked with ethylene glycol dimethacrylate (EGDMA). The co-polymer consists of 46% hioxifilcon D and 54% water by weight when immersed in saline solution. The hioxifilcon D name has been adopted by the United States Adopted Names Council (USAN).
The Desio (hioxifilcon D) Daily Wear Soft (hydrophilic) Contact Lenses are available clear or tinted to enhance or alter the apparent color of the eye. Lenses are tinted with one or a combination of one or more of the following 'listed' color additives:
| Color Additive | Listing |
|-----------------------|------------------|
| Titanium Dioxide | 21 CFR § 73.3126 |
| Phthalocyanine Green | 21 CFR § 73.3124 |
| Carbazole Violet | 21 CFR § 73.3107 |
| Reactive Blue 19 | 21 CFR § 73.3127 |
| C.I. Reactive black 5 | 21 CFR § 73.3127 |
Lenses that contain a unique tinting pattern are subsequently processed to incorporate the 'listed' color additives and contain only the amount of color additive needed to accomplish the intended coloring effect. When producing the tinted lenses, the pad-printing manufacturing process alters and/or changes the specifications to the clear version of a contact lens by affixing a listed reactive color additive in the center of the contact lens (between layers of contact lens material) in a location that corresponds to the iris. The color additives used are not removed by lens handling and cleaning/disinfecting procedures. Except for affecting the amount of light transmittance through the lens, the coloring process does not alter the original characteristics of the pre-tinted lens. The tinting pattern has a standard Clear Pupil diameter of 6.0 mm.
{5}------------------------------------------------
The Desio (hioxifilcon D) Daily Wear Soft (hydrophilic) Contact Lenses incorporate a UV absorbing monomer. The lenses block >95% in the UVB range (280nm - 315nm), and >67% in the UVA range (316nm - 380nm).
The Desio (hioxifilcon D) Daily Wear Soft (hydrophilic) Contact Lenses will be manufactured in the sphere and toric design configurations. The material properties and available parameters of the finished lenses are as follows:
| Parameter | Range | Tolerance* |
|----------------------------------------------------------------|--------------------------------------------------------------------------------------------------|---------------------------------------------------------------------------------|
| Chord Diameter | 12.80 mm to 15.00 mm | ±0.20 mm |
| Center Thickness | 0.05 mm to 0.210 mm | When ≤ 0.10 mm → ±0.010 mm + 10%<br>When > 0.10 mm → ±0.015 mm + 5% |
| Base Curve | 7.85 mm to 10.0 mm | ±0.20 mm |
| Back Vertex Power (F'v) | +20.00D to -20.00D<br>(in 0.25D steps) | When 0.00 < F'v ≤ 10.00 D → ±0.25 D<br>When 10.00 < F'v ≤ 20.00 D → ±0.50 D |
| Cylinder Power (F'c) | -0.25D to -4.00D<br>(in 0.25D steps) | When 0.00 < F'c ≤ 2.00 D → ±0.25 D<br>When 2.00 < F'c ≤ 4.00 D → ±0.37 D |
| Cylinder Axis | 10° to 180°<br>(in 10° steps) | When 0.00 < F'c ≤ 1.50 D → ±8°<br>When F'c > 1.50 D → ±5° |
| Surface Appearance | | Lenses should be clear with no surface defect |
| Oxygen Permeability<br>(x 10-11(cm²/sec)(mlO2)/(ml<br>x mmHg)) | 21.50 | ±20% |
| Light Transmission - Clear<br>(@ 380-780nm) | >98% | ±5% |
| Light Transmission - Tinted<br>(@ 380-780nm) | >96% (at region corresponding to<br>pupil); Opaque or 0-10% (at<br>region corresponding to iris) | ±5% |
| Ultraviolet Radiation<br>Transmittance | <5% TUVB<br><33% TUVA | TUVB (280 to 315 nm) < 0.05TV<br>TUVA (316 to 380 nm) < 0.50TV |
| Water Content | 54% | ±2% |
| Refractive Index | 1.400 (hydrated) | ±0.005 |
* ANSI Z80.20, Ophthalmics - Contact Lenses - Standard Terminology, Tolerances, Measurements And Physicochemical Properties (2010)
{6}------------------------------------------------
#### V. INDICATIONS FOR USE
The Desio (hioxifilcon D) Spherical Soft Contact Lenses for daily wear are indicated for the correction of refractive error in aphakic and not aphakic persons with non-diseased eyes with myopia or hyperopia. The lens may be worn by persons who exhibit refractive astigmatism of 0.75 diopters or less where the astigmatism does not interfere with visual acuity. The lens is available clear or tinted and may be used to enhance or alter the apparent color of the eye.
The Desio (hioxifilcon D) Toric Soft Contact Lenses for daily wear are indicated for the correction of refractive error in aphakic and not aphakic persons with non-diseased eyes with myopia or hyperopia and/or possesses refractive astigmatism not exceeding 5.00 diopters. The lens is available clear or tinted and may be used to enhance or alter the apparent color of the eye.
Daily wear replacement schedules may vary from patient and should be decided by eye care practitioners in consultation with their patients.
Eye care 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.
Eye care practitioners may prescribe any of the above lenses for single use daily disposable wear. When prescribed for daily disposable wear the lens is to be discarded after each removal.
#### VI. COMPARISON OF TECHNOLOGICAL CHARACTERISTICS WITH PREDICATE DEVICE
The Desio (hioxifilcon D) Daily Wear Soft (hydrophilic) Contact Lenses are substantially equivalent to Extreme H2O 54% (hioxifilcon D) Soft Contact Lenses (cleared under K051430) in terms of the following:
- 트 USAN contact lens material (hioxifilcon D)
- 트 Intended use - daily wear contact lenses
- 트 Indications for use
- I Cast molded production method
{7}------------------------------------------------
The following matrix illustrates the production method, lens function and material characteristics of the Desio (hioxifilcon D) Daily Wear Soft (hydrophilic) Contact Lenses, as well as the predicate device.
| | Qualimed SRL<br>Desio<br>(Subject Device) | Hydrogel Vision Corp.<br>Extreme H2O 54% (Predicate) |
|---------------------------------------------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Indications for Use | Indicated for daily wear for the correction<br>of refractive error in aphakic and not<br>aphakic persons with non-diseased eyes<br>with myopia or hyperopia. | Indicated for daily wear for the correction<br>of refractive error in aphakic and not<br>aphakic persons with non-diseased eyes<br>with myopia or hyperopia. |
| Functionality | The contact lenses act as a refractive<br>medium that focus light rays from near<br>and distant objects on the retina | The contact lenses act as a refractive<br>medium that focus light rays from near<br>and distant objects on the retina |
| FDA Classification | Soft (hydrophilic) Contact Lens (21 CFR<br>886.5925) | Soft (hydrophilic) Contact Lens (21 CFR<br>886.5925) |
| FDA Group | FDA Group 2<br>(>50% H2O, non-ionic polymer) | FDA Group 2<br>(>50% H2O, non-ionic polymer) |
| Production Method | Fully molded | Fully molded |
| USAN name | hioxifilcon D | hioxifilcon D |
| Water Content (%) | 54±2% | 54±2% |
| Oxygen Permeability<br>x 10-11 (cm²/sec)(mlO₂)/(ml x mmHg @<br>35°C)) (revised Fatt method) | 21.50 | 21 |
| Refractive Index<br>(hydrated) | 1.40 | 1.41 |
| UV Blocker | Yes | No |
| Pad-Printed Tinting | Yes | No |
### Substantial Equivalence Matrix
{8}------------------------------------------------
#### VII. PERFORMANCE DATA
The following performance data were provided in support of the substantial equivalence determination.
### Non-clinical Testing
A series of preclinical testing was performed to demonstrate the safety and effectiveness of the Desio (hioxifilcon D) finished contact lenses. The results support the claim that the Desio (hioxifilcon D) Soft Contact Lenses are substantially equivalent to the currently marketed predicate devices. A summary of the results from the preclinical studies is presented below.
### Toxicology:
All non-clinical toxicology tests were conducted in accordance with the GLP regulation.
- · In-Vitro Cytotoxicity: Cytotoxicity testing was performed in accordance with ISO 10993-5 with results indicating that the test article is non-toxic.
- · Systemic Toxicity: The lens material meets the requirements of the systemic injection test in accordance with ISO 10993-11 and is considered non-toxic.
- Acute Ocular Irritation: Acute ocular irritation test was performed in accordance with ISO 10993-10 and produced no ocular irritation.
### Shelf Life:
The data presented supports substantial equivalence of the Desio (hioxifilcon D) finished contact lenses to the already marketed predicate devices.
### Physicochemical & Mechanical Properties:
The following tests were completed to verify substantial equivalence: refractive index, water content, Dk, % transmission (visible & UV), tensile strength, modulus, % elongation to break, specific gravity and polymerization residuals. Results of physicochemical and mechanical property testing demonstrate consistent material properties between the Desio (hioxifilcon D) contact lenses and the predicate devices.
### Clinical Testing
Clinical testing is not required. The clinical performance of soft (hydrophilic) contact lenses manufactured from hioxifilcon D materials has been demonstrated previously.
{9}------------------------------------------------
### VIII. CONCLUSIONS
### Validity of Scientific Data
Laboratories under Good Laboratory Practice regulations conducted toxicology, microbiology, and shelf-life stability studies following scientific protocols. The data were determined to be scientifically valid under 21 CFR 860.7.
### Substantial Equivalence
Information presented in this Premarket Notification establishes that the Desio (hioxiffileon D) Daily Wear Soft (hydrophilic) Contact Lenses are as safe and effective as the predicate device when used in accordance with the labeled directions for use and for the proposed indication.
### Risks and Benefits
The risks of the subject device are the same as those normally attributed to the wearing of soft (hydrophilic) daily wear contact lenses. The benefits to the patient are the same as those for other soft (hydrophilic) daily wear contact lenses.
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.