VitaVitro Sperm Washing Medium, VitaVitro Sperm Gradient Medium
Applicant
Shenzhen Vitavitro Biotech Co., Ltd.
Product Code
MQL · Obstetrics/Gynecology
Decision Date
Feb 1, 2022
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 884.6180
Device Class
Class 2
Indications for Use
VitaVitro® Sperm Washing Medium is intended for preparation and washing of sperm for use in assisted reproduction procedures. VitaVitro® Sperm Washing Medium is also intended for use in intrauterine insemination procedures. VitaVitro® Sperm Gradient Medium is intended for separation of motile sperm from seminal fluid for use in assisted reproduction procedures.
Device Story
VitaVitro® Sperm Washing Medium and Sperm Gradient Medium are ready-to-use solutions for sperm preparation in assisted reproduction; Sperm Washing Medium also used for intrauterine insemination. Sperm Gradient Medium utilizes silane-coated colloidal silica particles to create density gradients for separating motile sperm from seminal fluid. Solutions are aseptically filtered, packaged in PETG bottles, and stored at 2-8°C. Used in clinical laboratory settings by embryologists or trained technicians. Output is processed sperm sample for clinical use; benefits include improved sperm quality for reproductive procedures. Devices are single-use.
Clinical Evidence
Bench testing only. Performance validated via Human Sperm Survival Assay (HSSA) showing ≥ 80% control motility at 24h. Additional testing included pH, osmolality, endotoxin levels (< 0.25 EU/mL), sterility, and biocompatibility (cytotoxicity, sensitization, irritation per ISO 10993). Shelf-life supported by accelerated aging (ASTM F1980-16).
Technological Characteristics
HEPES-buffered salt solutions containing glucose, sodium lactate, sodium pyruvate, taurine, alanyl glutamine, gentamicin sulfate, and EDTA. Sperm Gradient Medium includes silane-coated colloidal silica particles. PETG bottles with HDPE closures. Sterile filtered (ISO 13408-1/2). Osmolality: 270-360 mOsm/kg depending on medium/layer. pH: 7.2-7.8. Shelf-life: 2 years. Storage: 2-8°C.
Indications for Use
Indicated for sperm preparation, washing, and separation of motile sperm from seminal fluid in assisted reproduction and intrauterine insemination procedures.
Regulatory Classification
Identification
Reproductive media and supplement are products that are used for assisted reproduction procedures. Media include liquid and powder versions of various substances that come in direct physical contact with human gametes or embryos (including water, acid solutions used to treat gametes or embryos, rinsing solutions, sperm separation media, supplements, or oil used to cover the media) for the purposes of preparation, maintenance, transfer or storage. Supplements are specific reagents added to media to enhance specific properties of the media (e.g., proteins, sera, antibiotics, etc.).
Special Controls
*Classification.* Class II (special controls) (mouse embryo assay information, endotoxin testing, sterilization validation, design specifications, labeling requirements, biocompatibility testing, and clinical testing). The device, when it is phosphate-buffered saline used for washing, and short-term handling and manipulation of gametes and embryos; culture oil used as an overlay for culture media containing gametes and embryos; and water for assisted reproduction applications, is exempt from the premarket notification procedures in subpart E of part 807 of this chapter subject to the limitations in § 884.9.
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February 1, 2022
Shenzhen VitaVitro Biotech Co., Ltd. Donghai Pan International Regulatory Specialist R601, Building B, Hai Ke Xing Tech Park, Baoshan Road No.16 Shenzhen, Guangdong 518118 China
Re: K212410
> Trade/Device Name: VitaVitro® Sperm Washing Medium, VitaVitro® Sperm Gradient Medium Regulation Number: 21 CFR§ 884.6180 Regulation Name: Reproductive Media and Supplements Regulatory Class: II Product Code: MQL Dated: December 16, 2021 Received: December 30, 2021
Dear Donghai Pan:
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.
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You must comply with all the Act's requirements, including, but not limited to: registration and listing (21 CFR Part 807); labeling (21 CFR Part 801); medical device reporting of medical device-related adverse events) (21 CFR 803) for devices or postmarketing safety reporting (21 CFR 4, Subpart B) for combination products (see https://www.fda.gov/combination-products/guidance-regulatoryinformation/postmarketing-safety-reporting-combination-products); good manufacturing practice requirements as set forth in the quality systems (QS) regulation (21 CFR Part 820) for devices or current good manufacturing practices (21 CFR 4, Subpart A) for combination products; and, if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR 1000-1050.
Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21 CFR Part 807.97). For questions regarding the reporting of adverse events under the MDR regulation (21 CFR Part 803), please go to https://www.fda.gov/medical-device-safety/medical-device-reportingmdr-how-report-medical-device-problems.
For comprehensive regulatory information about mediation-emitting products, including information about labeling regulations, please see Device Advice (https://www.fda.gov/medicaldevices/device-advice-comprehensive-regulatory-assistance) and CDRH Learn (https://www.fda.gov/training-and-continuing-education/cdrh-learn). Additionally, you may contact the Division of Industry and Consumer Education (DICE) to ask a question about a specific regulatory topic. See the DICE website (https://www.fda.gov/medical-device-advice-comprehensive-regulatoryassistance/contact-us-division-industry-and-consumer-education-dice) for more information or contact DICE by email (DICE@fda.hhs.gov) or phone (1-800-638-2041 or 301-796-7100).
Sincerely,
For Monica D. Garcia, Ph.D. Assistant Director DHT3B: Division of Reproductive, Gynecology and Urology Devices OHT3: Office of GastroRenal, ObGyn, General Hospital and Urology Devices Office of Product Evaluation and Quality Center for Devices and Radiological Health
Enclosure
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# Indications for Use
510(k) Number (if known) K212410
#### Device Name
VitaVitro® Sperm Washing Medium, VitaVitro® Sperm Gradient Medium
Indications for Use (Describe)
Vita Vitro® Sperm Washing Medium is intended for preparation and washing of sperm for use in assisted reproduction procedures. Vita Vitro® Sperm Washing Medium is also intenderine insemination procedures.
VitaVitro® Sperm Gradient Medium is intended for separation of motile sperm from seminal fluid for use in assisted reproduction procedures.
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) |
|------------------------------------------------|-----------------------------------------------|
|------------------------------------------------|-----------------------------------------------|
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Image /page/3/Picture/0 description: The image shows the logo for VitaVitro. The logo consists of a stylized green checkmark-like symbol with three rounded points. To the right of the symbol is the text "VitaVitro" in a sans-serif font, also in green. The logo is simple and modern, likely representing the company's name and brand identity.
# 510(k) SUMMARY K212410
# 1. Submission Sponsor
Shenzhen VitaVitro Biotech Co., Ltd. R601, Building B, Hai Ke Xing Tech Park Baoshan Road No. 16 Shenzhen 518118 Guangdong China Contract Person: Mr. Donghai Pan Title: International Regulatory Specialist Tel: 86-755-84511813 Fax: 86-755-85235226 Email: pandh@vitavitro.com
# 2. Date Prepared
January 26, 2022
#### 3. Device Identification
| Trade Name: | VitaVitro® Sperm Washing Medium, VitaVitro® Sperm Gradient Medium |
|--------------------|-------------------------------------------------------------------|
| Common Name: | Sperm Washing Medium, Sperm Gradient Medium |
| Regulation Number: | 21 CFR 884.6180 |
| Regulation Name: | Reproductive Media and Supplements |
| Regulatory Class: | Class II |
| Product Code: | MQL (Media, Reproductive) |
# 4. Predicate Device
# Table 1. Predicate Devices
| Subject Devices | VitaVitro® Sperm Washing Medium | VitaVitro® Sperm Gradient Medium | |
|----------------------|---------------------------------|----------------------------------|--------------------|
| Predicate<br>Devices | Trade Name | SepaSperm Washing Solution | SepaSperm Solution |
| | Manufacturer | Kitazato Corporation | |
| | 510(k) No. | K190199 | |
| | Regulatory Class | Class II | |
| | Product Code | MQL (Media, Reproductive) | |
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The predicate devices have not been subject to any design-related recalls.
#### 5. Device Description
VitaVitro® Sperm Washing Medium and VitaVitro® Sperm Gradient Medium are ready-to-use solutions intended for preparing sperm for use in assisted reproductive procedures:
- VitaVitro® Sperm Washing Medium is for sperm washing and for intrauterine insemination procedures.
- VitaVitro® Sperm Gradient Medium is for sperm density-gradient centrifugation and separation from seminal fluid.
Both devices have a similar base formulation; however, the VitaVitro® Sperm Gradient Medium formulation differs as it contains silane silica and does not contain Human Serum Albumin (HSA). The silane silica in the VitaVitro® Sperm Gradient Medium (upper layer 80%) generates the density gradient for sperm separation procedures.
The subject devices are aseptically filtered, colorless solutions, contained in transparent and sterilized (gamma irradiation) polyethylene terephthalate glycol (PETG) bottles, sealed with high density polyethylene (HDPE) closures, provided in cardboard boxes, individually labeled and with an instruction for use provided as a package insert.
The devices are provided in the following volumes:
- VitaVitro® Sperm Washing Medium: 30mL, 60mL, and 125mL
- VitaVitro® Sperm Gradient Medium: 12mL, 30mL, and 125mL
Both devices have a two-year shelf-life when stored as recommended. These devices are for single-used only.
### 6. Indications for Use
| No. | Device Name | Indications for Use |
|-----|-------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| 1 | VitaVitro® Sperm<br>Washing Medium | VitaVitro® Sperm Washing Medium is intended for preparation and washing of<br>sperm for use in assisted reproduction procedures. VitaVitro® Sperm Washing<br>Medium is also intended for use in intrauterine insemination procedures. |
| 2 | VitaVitro® Sperm<br>Gradient Medium | VitaVitro® Sperm Gradient Medium is intended for separation of motile sperm from<br>seminal fluid for use in assisted reproduction procedures. |
#### Table 2. Indications for Use
#### 7. Comparison of intended use and technological characteristics of the subject and predicate devices
The table below provides comparisons of the intended use and technological characteristics of the subject and predicate devices.
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| Parameters for<br>comparison | Subject Devices<br>VitaVitro® Sperm Washing<br>Medium, VitaVitro® Sperm<br>Gradient Medium | Predicate Devices<br>SepaSperm Washing Solution,<br>SepaSperm Washing Solution | Comparison |
|------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Indications for<br>Use | VitaVitro® Sperm Washing Medium<br>is intended for preparation and<br>washing of sperm for use in<br>assisted reproduction procedures.<br>VitaVitro® Sperm Washing Medium<br>is also intended for use in<br>intrauterine insemination<br>procedures.<br><br>VitaVitro® Sperm Gradient Medium<br>is intended for separation of motile<br>sperm from seminal fluid for use in<br>assisted reproduction procedures. | SepaSperm Washing Solution is<br>used for preparation and washing<br>of sperm for use in assisted<br>reproduction procedures.<br>SepaSperm Washing Solution is<br>not intended for use in<br>intrauterine insemination<br>procedures.<br><br>SepaSperm Solution is used for<br>separation of motile sperm from<br>seminal fluid for use in assisted<br>reproduction procedures. | The indications for use<br>statements for the<br>VitaVitro® Sperm Washing<br>Medium and the<br>SepaSperm Washing<br>Solution are not identical,<br>as the VitaVitro® Sperm<br>Washing Medium can also<br>be used for intrauterine<br>insemination (IUI)<br>procedures. The use for IUI<br>procedures represents an<br>additional use of the<br>VitaVitro® Sperm Washing<br>Medium, but does not<br>represent a new intended<br>use (i.e., washing and<br>preparing sperm for use in<br>assisted reproduction<br>procedures).<br><br>The indications for use and<br>intended use of the<br>VitaVitro® Sperm Gradient<br>Medium and the<br>SepaSperm Solution are<br>the same. |
| Device<br>Materials | HEPES Buffered Salt Solution;<br>Glucose;<br>Sodium Lactate;<br>Sodium Pyruvate;<br>Taurine;<br>Alanyl Glutamine;<br>Gentamicin Sulfate;<br>EDTA;<br>Water;<br>Human Serum Albumin (VitaVitro®<br>Sperm Washing Medium only);<br>Silane-coated Colloidal Silica<br>Particles (VitaVitro® Sperm<br>Gradient Medium only) | HEPES Buffered Salt Solution;<br>D-glucose;<br>Dextran;<br>Polyvinylpyrrolidone;<br>Gentamicin (with or without);<br>Water;<br>Silica (SepaSperm Solution only) | Different: The<br>formulations and volume<br>of the subject and<br>predicate devices are not<br>identical. Differences in<br>media product<br>formulations and volume<br>do not raise different<br>questions of safety and<br>effectiveness (S&E). |
| Packaging | 30mL, 60mL, 125mL bottle | 50mL, 100mL bottle | |
| Sterility | No microbial growth | No microbial growth | Same |
| Osmolality | VitaVitro® Sperm Washing<br>Medium: 270-300 mOsm/kg<br><br>VitaVitro® Sperm Gradient<br>Medium: | 270-300 mOsm/kg | Different: The osmolality<br>of the VitaVitro® Sperm<br>Gradient Medium is higher<br>than the predicate.<br>Differences in media |
| | Table 3. Comparison Between Subject and Predicate Devices | |
|--|-----------------------------------------------------------|--|
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| Parameters for<br>comparison | Subject Devices<br>VitaVitro® Sperm Washing<br>Medium, VitaVitro® Sperm<br>Gradient Medium | Predicate Devices<br>SepaSperm Washing Solution,<br>SepaSperm Washing Solution | Comparison |
|-----------------------------------------|---------------------------------------------------------------------------------------------|--------------------------------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| | Upper layer 40%: 270-330<br>mOsm/kg<br>Lower layer 80%: 300-360<br>mOsm/kg | | osmolality do not raise<br>different questions of S&E. |
| pH | VitaVitro® Sperm Washing<br>Medium: 7.2-7.6<br>VitaVitro® Sperm Gradient<br>Medium: 7.4-7.8 | 7.2-7.6 | Similar |
| Human Sperm<br>Survival Assay<br>(HSSA) | ≥ 80% of control motility at 24h | ≥ 80% of control motility at 24h | Same |
| Endotoxin | < 0.25 EU/mL | < 0.25 EU/mL | Same |
| Storage<br>Temperature | 2 - 8°C | 2 - 8°C | Same |
| Shelf-life | 2 years | 1 year (with gentamicin) | Different: The shelf-life of<br>the subject and predicate<br>devices is not the same.<br>Differences in shelf-life do<br>not raise different<br>questions of S&E. |
As shown in the table above, there are differences in the indications for use statements and technological features of the subject and predicate devices. However, as stated in the differences in indications for use do not represent a new intended use and the differences in technological features do not raise different questions of safety and effectiveness.
#### 8. Summary of Non-Clinical Performance
The following studies have been performed to support substantial equivalence to the predicate devices. Results confirm that the design inputs and performance specifications for the device are met.
| Specification | VitaVitro® Sperm Washing Medium | VitaVitro® Sperm Gradient Medium |
|--------------------------------------|----------------------------------|----------------------------------------------------------------------|
| Specific gravity (per USP <841>) | N/A | Lower layer 80%: 1.10±0.03 g/mL<br>Upper layer 40%: 1.05±0.03 g/mL |
| pH (per USP <791>) | 7.2 - 7.6 | 7.4 - 7.8 |
| Osmolality (per USP <785>) | 270-300 mOsm/kg | Lower layer 80%: 300-360 mOsm/kg<br>Upper layer 40%: 270-330 mOsm/kg |
| Endotoxin (per USP <85>) | < 0.25 EU/mL | < 0.25 EU/mL |
| Human Sperm Survival Assay<br>(HSSA) | ≥ 80% of control motility at 24h | ≥ 80% of control motility at 24h |
### Table 4. Device Specifications
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| Sterility (per USP <71>) | No microbial growth | No microbial growth |
|--------------------------|---------------------|---------------------|
|--------------------------|---------------------|---------------------|
- Sterile filtration and aseptic fill validation, per ISO 13408-1:2008 (Aseptic processing of health care products - Part 1: General requirements) and ISO 13408-2:2018 (Aseptic processing of health care products - Part 2: Sterilizing filtration).
- · Transportation testing per ASTM D4169-16 (Standard Practice for Performance Testing of Shipping Containers and Systems).
- Shelf-life testing to support the two-year shelf-life by demonstrating that the product specifications listed in Table 4 were met at time 0 and after accelerated aging in accordance with ASTM F1980-16.
- Biocompatibility testing was conducted in support of the VitaVitro® Sperm Washing Medium that will have direct contact with the patient during IUI procedures. Testing was conducted in accordance with the 2020 FDA guidance document "Use of International Standard ISO 10993-1, Biological Evaluation of Medical Devices – Part 1: Evaluation and testing within a risk management process." Testing included:
- Cytotoxicity per ISO 10993-5: 2009 o
- Sensitization per ISO 10993-10: 2010 o
- O Irritation per ISO 10993-10: 2010
The testing demonstrated the device formulation to be non-cytotoxic, non-sensitizing, and non-irritating.
- Sperm assessment for motility, morphology, viability, and purity before and after separation procedures using VitaVitro® Sperm Gradient Medium to assess the effectiveness of the device when used as intended.
# 9. Conclusion
The results of the performance testing described above demonstrate that the subject media products are as safe and effective as the predicate devices and support a determination of substantial equivalence.
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.