HySil Heavy is to be used as heavy-bodied materials for: - One-step impression technique (simultaneous technique) using single or dual viscosities - -Two-step impression technique using dual viscosities - -Functional impressions HySil Mono is to be used as a medium-bodied tray or syringeable impression material for: - Taking impressions over fixed/removable restorations and implants -(i.e., transferring impression posts and bridge components) - -Functional impressions - Fabricating crown and bridgework or inlays - -Fabricating full or partial dentures - -Reline impressions - -Use in the simultaneous mixing technique as well as the putty-wash and triple tray techniques - -Transferring root posts when fabricating posts and cores indirectly HySil Bite is used for impression as below. - Taking occlusal surfaces - -Confirming occlusal surfaces - -Recording after putting the articulator
Device Story
HySil Impression Materials (Heavy, Mono, Bite) are addition-curing, elastomeric vinylpolysiloxane materials used by dental professionals to reproduce oral structures. Heavy and Mono variants are supplied in 1:1 50 ml or 5:1 380 ml automix cartridges for use in automatic dispensing systems; Bite variant is supplied in 50 ml cartridges. Materials are placed on impression trays or injected directly into the patient's mouth. The device captures the physical geometry of teeth and gums, providing dimensional accuracy and tear strength for dental fabrication workflows. The output is a physical impression used by clinicians to create dental prosthetics or record jaw relations. Benefits include high resistance to permanent deformation and accurate reproduction of oral anatomy.
Clinical Evidence
No clinical data. Substantial equivalence is supported by bench testing including visual, weight, package, component color, consistency, detail reproduction, compatibility with gypsum, linear dimensional change, elastic recovery, strain-in-compression, and working time per ISO 4823 and DIN 13903. Biocompatibility testing (cytotoxicity, skin sensitization, oral mucosa irritation, acute systemic injection) performed per ISO 10993-5, 10993-10, and 10993-11.
Technological Characteristics
Vinylpolysiloxane-based addition-curing silicone elastomers. Conforms to ISO 4823 (Heavy/Mono) and DIN 13903 (Bite). Supplied in 50 ml (1:1) or 380 ml (5:1) automix cartridges. Non-sterile. Shelf life: 2 years (Heavy/Mono), 3 years (Bite).
Indications for Use
Indicated for dental patients requiring impressions for fixed/removable restorations, implants, crown/bridgework, inlays, full/partial dentures, relines, root posts, and occlusal surface recording.
Regulatory Classification
Identification
Impression material is a device composed of materials such as alginate or polysulfide intended to be placed on a preformed impression tray and used to reproduce the structure of a patient's teeth and gums. The device is intended to provide models for study and for production of restorative prosthetic devices, such as gold inlays and dentures.
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Image /page/0/Picture/0 description: The image contains two logos. On the left is the logo for the Department of Health & Human Services, featuring a stylized human figure. To the right is the logo for the U.S. Food & Drug Administration (FDA), with the FDA acronym in a blue square and the full name "U.S. FOOD & DRUG ADMINISTRATION" in blue text next to and below it.
Osstem Implant Co., Ltd. % David Kim Manager Hiossen Inc. 85 Ben Fairless Dr. Fairless Hills, Pennsylvania 19030 September 13, 2018
Re: K181236
Trade/Device Name: HySil Impression Materials (Heavy, Mono, and Bite) Regulation Number: 21 CFR 872.3660 Regulation Name: Impression Material Regulatory Class: Class II Product Code: ELW Dated: June 26, 2018 Received: June 26, 2018
Dear David Kim:
We have reviewed your Section 510(k) premarket notification of intent to market the device referenced above and have determined the device is substantially equivalent (for the indications for use stated in the enclosure) to legally marketed predicate devices marketed in interstate commerce prior to May 28, 1976, the enactment date of the Medical Device Amendments, or to devices that have been reclassified in accordance with the provisions of the Federal Food, Drug, and Cosmetic Act (Act) that do not require approval of a premarket approval application (PMA). You may, therefore, market the device, subject to the general controls provisions of the Act. Although this letter refers to your product as a device, please be aware that some cleared products may instead be combination products. The 510(k) Premarket Notification Database located at https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfpmn/pmn.cfm identifies combination product submissions. The general controls provisions of the Act include requirements for annual registration, listing of devices, good manufacturing practice, labeling, and prohibitions against misbranding and adulteration. Please note: CDRH does not evaluate information related to contract liability warranties. We remind you, however, that device labeling must be truthful and not misleading.
If your device is classified (see above) into either class II (Special Controls) or class III (PMA), it may be subject to additional controls. Existing major regulations affecting your device can be found in the Code of Federal Regulations, Title 21, Parts 800 to 898. In addition, FDA may publish further announcements concerning your device in the Federal Register.
Please be advised that FDA's issuance of a substantial equivalence determination does not mean that FDA has made a determination that your device complies with other requirements of the Act or any Federal statutes and regulations administered by other Federal agencies. You must comply with all the Act's
{1}------------------------------------------------
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/CombinationProducts/GuidanceRegulatoryInformation/ucm597488.htm); good manufacturing practice requirements as set forth in the quality systems (OS) regulation (21 CFR Part 820) for devices or current good manufacturing practices (21 CFR 4, Subpart A) for combination products; and, if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR 1000-1050.
Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21 CFR Part 807.97). For questions regarding the reporting of adverse events under the MDR regulation (21 CFR Part 803), please go to http://www.fda.gov/MedicalDevices/Safety/ReportaProblem/default.htm.
For comprehensive regulatory information about mediation-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,
# Mary S. Runner -S
For Tina Kiang, Ph.D. Acting Director Division of Anesthesiology. General Hospital, Respiratory, Infection Control, and Dental Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
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510(k) Number K_181236
Device Name: HySil Impression Materials
Indication for Use:
HySil Heavy is to be used as heavy-bodied materials for:
- One-step impression technique (simultaneous technique) using single or dual viscosities -
- Two-step impression technique using dual viscosities -
- -Functional impressions
HySil Mono is to be used as a medium-bodied tray or syringeable impression material for:
- Taking impressions over fixed/removable restorations and implants -(i.e., transferring impression posts and bridge components)
- -Functional impressions
- Fabricating crown and bridgework or inlays -
- Fabricating full or partial dentures -
- Reline impressions -
- -Use in the simultaneous mixing technique as well as the putty-wash and triple tray techniques
- -Transferring root posts when fabricating posts and cores indirectly
HySil Bite is used for impression as below.
- Taking occlusal surfaces -
- Confirming occlusal surfaces -
- -Recording after putting the articulator
Prescription Use X (Per 21CFR801 Subpart D) OR Over-The-Counter Use (Per 21CFR807 Subpart C)
(PLEASE DO NOT WRITE BELOW THIS LINE - CONTINUE ON ANOTHER PAGE IF NEEDED)
Concurrence of CDRH, Office of Device Evaluation (ODE)
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## 510(k) Summary
Date: April 27, 2018
## 1. Company and Correspondent making the submission
| - Submitter's Name | : OSSTEM IMPLANT Co., Ltd. |
|------------------------|-----------------------------------------------------------------------------------|
| - Address | : 66-16, Bansong-ro 513beon-gil, Haeundae-gu, Busan<br>612-070, Republic of Korea |
| - Contact | : Ms. Jungmin Yoo |
| - Phone | : +82-51-850-2575 |
| - Correspondent's Name | : HIOSSEN Inc. |
| - Address | : 85 Ben Fairless Dr. Fairless Hills, PA 19030 |
| - Contact | : Mr. David Kim |
| - Phone | : 267-759-7031 |
#### 2. Device
| - Trade or (Proprietary) Name | : HySil Impression Material |
|-------------------------------|-----------------------------|
| - Classification Name | : Impression Material |
| - Regulation Number | : 21CFR872.3660 |
| - Devce Classification | : Class II |
| - Classification Product Code | : ELW |
## 3. Predicate Device
Primary Predicate -HySil Impression Materials, OSSTEM IMPLANT Co., Ltd. (K170736)
## 4. Description
HySil Impression materials are intended to be placed on an impression tray (or injected directly into the mouth, depending on the technique and device) and used to reproduce the structure of a patient's teeth and gums.
HySil Heavy and HySil Mono are addition-curing, elastomeric materials with hydrophilic property, high tear strength, dimensional accuracy, and a high resistance to permanent deformation. HySil Heavy and HySil Mono are available in an assortment of delivery systems of traditional 1:1 50 ml automix cartridge (predicated, K170736) and 5:1 380 ml automix cartridge version for use in most automatic dispensing and mixing system. HySil Heavy and HySil Mono are classified into Type 1 and Type 2 according to ISO 4823 each.
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Image /page/4/Picture/1 description: The image shows the logo and contact information for OSSTEM Implant Co., Ltd. The address is 66-16, Bansong-ro 513beon-gil, Haeundae-gu, Busan, Republic of Korea. The telephone number is +82 51 850-2500, the fax number is +82 51 850-4341, and the website address is www.osstem.com.
HySil Bite is an addition-curing silicone bite registration materials in a 50 ml cartridge type to measure accurate bite. HySil Bite is suitable for bite registration as it has a short setting time, high final hardness after curing for user convenience, and less elastic deformation when eliminated. HySil Bite is classified into jaw relation recording material according to DIN 13903.
- 5. Substantial Equivalence Matrixes
- HySil Heavy and HySil Mono (Addition in 5:1 380 ml automix cartridge version) -
| | Proposed Devices | Predicated Devices | Remark |
|------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------|
| 510(k) No. | Proposed | K170736 | |
| Manufacturer | Osstem Implant Co., Ltd. | Osstem Implant Co., Ltd. | Same |
| Indications<br>for Use | HySil Heavy is to be used as<br>heavy-bodied materials for:<br>- One-step impression<br>technique (simultaneous<br>technique) using single or<br>dual viscosities<br>- Two-step impression<br>technique using dual<br>viscosities<br>- Functional impressions<br><br>HySil Mono is to be used as a<br>medium-bodied tray or<br>syringeable impression<br>material for:<br>- Taking impressions over<br>fixed/removable<br>restorations and implants<br>(i.e., transferring<br>impression posts and<br>bridge components)<br>- Functional impressions<br>- Fabricating crown and<br>bridgework or inlays<br>- Fabricating full or partial<br>dentures<br>- Reline impressions<br>- Use in the simultaneous<br>mixing technique as well<br>as the putty-wash and<br>triple tray techniques<br>- Transferring root posts<br>when fabricating posts | HySil Heavy is to be used as<br>heavy-bodied materials for:<br>- One-step impression<br>technique (simultaneous<br>technique) using single or<br>dual viscosities<br>- Two-step impression<br>technique using dual<br>viscosities<br>- Functional impressions<br><br>HySil Mono is to be used as a<br>medium-bodied tray or<br>syringeable impression<br>material for:<br>- Taking impressions over<br>fixed/removable<br>restorations and implants<br>(i.e., transferring<br>impression posts and<br>bridge components)<br>- Functional impressions<br>- Fabricating crown and<br>bridgework or inlays<br>- Fabricating full or partial<br>dentures<br>- Reline impressions<br>- Use in the simultaneous<br>mixing technique as well<br>as the putty-wash and<br>triple tray techniques<br>- Transferring root posts<br>when fabricating posts | Same |
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Image /page/5/Picture/0 description: The image shows the logo for Osstem Implant. The word "OSSTEM" is in orange, with a small superscript "6" next to the "M". Below "OSSTEM" is the word "IMPLANT" in gray. The logo is simple and modern.
OSSTEM Implant Co., Ltd
Section 8
66-16, Bansong-ro 513beon-gil, Haeundae-gu, Busan, Republic of Korea
Tel: +82 51 850-2500 Fax: +82 51 850-4341 www.osstem.com
| Description<br>of Material | Vinylpolysiloxane | Vinylpolysiloxane | Composed<br>with same<br>affiliated<br>materials, but<br>ratios of each<br>component in<br>use are<br>slightly<br>different |
|----------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-------------------|-----------------------------------------------------------------------------------------------------------------------------|
| Standard<br>Conformed | ISO 4823 | ISO 4823 | Same |
| Shelf Life | 2 years | 2 years | Same |
| S.E. | Similarities:<br>The proposed devices and the predicated devices have same indications for use and<br>have same shelf life of 2 years. They are all conformed to the ISO 4823 standard;<br>also, both products are composed with same affiliated material called<br>Vinylpolysiloxane. Therefore, the results of the performance testing and their<br>composition are substantially equivalent.<br><br>Differences:<br>Compared to the predicated devices, the proposed devices don't have L-menthol in<br>their composition. The ratios of each component or kinds of pigments of the<br>materials in use are slightly different. However, based on the results of the<br>performance and the biocompatibility testing, the subject and the predicate device<br>passed the requirements.<br><br>. Therefore, we state that proposed devices (HySil Heavy and Mono, 5:1 380 ml automix cartridge) are substantially equivalent to the predicated devices (HySil | | |
- HySil Bite (Change in guidance of working time only) -
| | Proposed Devices | Predicated Devices | Remark |
|----------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------|-----------|
| 510(k) No. | Proposed | K170736 | - |
| Manufacturer | Osstem Implant Co., Ltd. | Osstem Implant Co., Ltd. | Same |
| Indications<br>for Use | HySil Bite is used for<br>impression as below.<br>- Taking occlusal surfaces<br>- Confirming occlusal<br>surfaces<br>- Recording after putting<br>the articulator | HySil Bite is used for<br>impression as below.<br>- Taking occlusal surfaces<br>- Confirming occlusal<br>surfaces<br>- Recording after putting<br>the articulator | Same |
| Working<br>Time | 30 seconds or more | 15 seconds or more | Different |
| Description<br>of Material | Vinylpolysiloxane | Vinylpolysiloxane | Same |
| Standard<br>Conformed | DIN 13903 | DIN 13903 | Same |
| Shelf Life | 3 years | 3 years | Same |
{6}------------------------------------------------
Image /page/6/Picture/1 description: The image shows the logo for Osstem Implant. The logo is orange and gray. The word "OSSTEM" is in orange, and the word "IMPLANT" is in gray. There is a small superscript "6" next to the word "OSSTEM".
Bansong-ro 513beon-gil u Busan Republic of Korea 82 51 850-2500 Fax: +82 51 850-4341 www.osstem.com
| S.E. | Similarities:<br>The proposed device and the predicated device have same indications for use and<br>have same shelf life of 3 years. They are all conformed to the DIN 13903 standard;<br>also, both products are composed with same affiliated material called<br>Vinylpolysiloxane.<br><br>Differences:<br>The working time (processing time) of device is guided by the manufacturer. The<br>working time of the proposed device is 30 seconds or more while the predicated<br>device is 15 seconds or more. Physical test for changing guidance of working time<br>was conducted and it passed the criteria of DIN 13903 standard.<br><br>: . Therefore, we state that propose device is substantially equivalent to the<br>predicated device cleared in K170736. |
|------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
- 6. Indication for Use
HySil Heavy is to be used as heavy-bodied materials for:
- One-step impression technique (simultaneous technique) using single or dual viscosities
- -Two-step impression technique using dual viscosities
- -Functional impressions
HySil Mono is to be used as a medium-bodied tray or syringeable impression material for:
- Taking impressions over fixed/removable restorations and implants -(i.e., transferring impression posts and bridge components)
- Functional impressions -
- Fabricating crown and bridgework or inlays -
- -Fabricating full or partial dentures
- -Reline impressions
- Use in the simultaneous mixing technique as well as the putty-wash and triple tray techniques
- Transferring root posts when fabricating posts and cores indirectly -
HySil Bite is used for impression as below.
- Taking occlusal surfaces -
- -Confirming occlusal surfaces
- -Recording after putting the articulator
- 7. Summary of Non-Clinical Performance Testing
Non-clinical testing data are submitted, referenced, or relied upon to demonstrate substantial equivalence.
{7}------------------------------------------------
Image /page/7/Picture/1 description: The image shows the logo and contact information for OSSTEM Implant Co., Ltd. The address is 66-16, Bansong-ro 513beon-gil, Haeundae-gu, Busan, Republic of Korea. The telephone number is +82 51 850-2500, the fax number is +82 51 850-4341, and the website address is www.osstem.com.
## Biocompatibility evaluation
Biocompatibility tests including cytotoxicity, skin sensitization, oral mucosa irritation, and acute systemic injection have been performed to assure biological safety in accordance with ISO 10993-5, 10993-10, and 10993-11.
## Sterilization Validation and Shelf-life
All subject devices in HySil Impression materials are delivered in non-sterile. Therefore, sterilization vas not considered. For the shelf-life of subject devices, we conducted real-time shelf-life tests and leveraged the data that of our prior submissions.
## Mechanical Properties
Bench tests evaluated for HySil Impression Materials included visual, weight, package, component color, consistency, detail reproduction, compatibility with gypsum, linear dimensional change, elastic recovery, strain-in-compression, and working time in accordance with ISO 4823 and DIN 13903. Mechanical properties from bench tests of HySil Impression Materials found substantially equivalent to the predicate devices.
- 8. Summary of Clinical Testing
No clinical studies are submitted.
- 9. Conclusion
In accordance with the Federal Food, Drug and Cosmetic Act, 21 CFR Part 807, and based on the information provided in this premarket notification. OSSTEM IMPLANT Co., Ltd. concludes that the HySil Impression Materials are substantially equivalent to the predicated devices as herein.
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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.