In general, these devices are intended for use in primary or revision hip arthroplasty.
Device Story
Stryker UHMWPE hip devices (femoral heads, bone plugs, acetabular inserts, liners) packaged in Nitrogen Vacuum (N₂Vac) environment; intended for primary or revision hip arthroplasty. Devices are surgically implanted by orthopedic surgeons in clinical settings. Packaging change involves transition to impermeable foil pouch in PETG blister with Tyvek lid, replacing previous Barex/foil configuration. Packaging maintains sterility and material integrity of UHMWPE components. Clinical benefit derived from established performance of existing hip arthroplasty components; packaging modification ensures shelf-life and sterility maintenance without altering device function or material properties.
Clinical Evidence
No clinical data. Substantial equivalence is based on non-clinical bench testing, including Small Punch testing (ASTM F2977), Oxygen Content analysis, and Oxidation Index (ASTM F2102). Packaging performance verified per ISO 11607-1, ASTM F88/F88M, and ASTM F2096. Accelerated aging validated a 5-year shelf-life per ASTM F1980. Biocompatibility confirmed via endotoxin testing (AAMI ST72) and cytotoxicity testing (ISO 10993-5).
Technological Characteristics
UHMWPE hip arthroplasty components. Packaging: Impermeable foil pouch in PETG blister with Tyvek lid, N₂Vac purged. Materials: UHMWPE. Standards: ASTM F2977 (Small Punch), ASTM F2102 (Oxidation), ISO 11607-1/2 (Packaging), ASTM F1980 (Aging), AAMI ST72 (Endotoxin), ISO 10993-5 (Cytotoxicity). Sterilization: Sterile.
Indications for Use
Indicated for adults with painful, disabling hip joint disease (degenerative, rheumatoid, posttraumatic arthritis, avascular necrosis), revision of failed hip procedures, or clinical management problems where alternative techniques are less likely to succeed. Constrained inserts are indicated for patients at high risk of dislocation due to prior history, bone loss, laxity, neuromuscular disease, or instability. System 12 inserts are indicated for noninflammatory degenerative joint disease, rheumatoid arthritis, deformity correction, revision, and proximal femur fractures. Artisan bone plugs are for use in the femoral canal during cemented hip procedures to aid cement pressurization and prevent migration. UHR bipolar components are indicated for femoral head/neck fractures, non-unions, aseptic necrosis, and arthritis with minimal acetabular involvement.
Regulatory Classification
Identification
A hip joint metal/polymer/metal semi-constrained porous-coated uncemented prosthesis is a device intended to be implanted to replace a hip joint. The device limits translation and rotation in one or more planes via the geometry of its articulating surfaces. It has no linkage across the joint. This generic type of device has a femoral component made of a cobalt-chromium-molybdenum (Co-Cr-Mo) alloy or a titanium-aluminum-vanadium (Ti-6Al-4V) alloy and an acetabular component composed of an ultra-high molecular weight polyethylene articulating bearing surface fixed in a metal shell made of Co-Cr-Mo or Ti-6Al-4V. The femoral stem and acetabular shell have a porous coating made of, in the case of Co-Cr-Mo substrates, beads of the same alloy, and in the case of Ti-6Al-4V substrates, fibers of commercially pure titanium or Ti-6Al-4V alloy. The porous coating has a volume porosity between 30 and 70 percent, an average pore size between 100 and 1,000 microns, interconnecting porosity, and a porous coating thickness between 500 and 1,500 microns. The generic type of device has a design to achieve biological fixation to bone without the use of bone cement.
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FDA U.S. FOOD & DRUG
ADMINISTRATION
July 10, 2026
Howmedica Osteonics Corp., DBA Stryker Orthopaedics
Elizabeth Jodon
Principal Regulatory Affairs Specialist
325 Corporate Dr.
Mahwah, New Jersey 07430
Re: K261624
Trade/Device Name: Omnifit® 20 Series I Insert; Omnifit® Crossfire® 10 Series II Insert;
Constrained Acetabular Insert; Trident® Crossfire® 0 Polyethylene Insert;
Trident® Crossfire® 10 Polyethylene Insert; System 12 Crossfire® 10 Insert;
Trident® 0 Constrained Acetabular Insert; Trident® Constrained Acetabular
Liner; Trident® All Poly Constrained Acetabular Insert; Crossfire® Eccentric
Insert 10; Artisan® Bone Plug; UHR® Universal Head Bipolar Component
Regulation Number: 21 CFR 888.3358
Regulation Name: Hip Joint Metal/Polymer/Metal Semi-Constrained Porous-Coated Uncemented
Prosthesis
Regulatory Class: Class II
Product Code: LPH, KWL, LWJ, LZO, MEH, KWZ, JDI, LZN
Dated: May 15, 2026
Received: May 15, 2026
Dear Elizabeth Jodon:
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 (the 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
available 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.
U.S. Food & Drug Administration
10903 New Hampshire Avenue
Silver Spring, MD 20993
www.fda.gov
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K261624 - Elizabeth Jodon
Page 2
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.
Additional information about changes that may require a new premarket notification are provided in the FDA guidance documents entitled "Deciding When to Submit a 510(k) for a Change to an Existing Device" (https://www.fda.gov/media/99812/download) and "Deciding When to Submit a 510(k) for a Software Change to an Existing Device" (https://www.fda.gov/media/99785/download).
Your device is also subject to, among other requirements, the Quality Management System Regulation (QMSR) (21 CFR Part 820), which includes, but is not limited to, ISO 13485 clause 7.3 (Design controls), ISO 13484 clause 8.3 (Nonconforming product), and ISO 13485 clause 8.5 (Corrective and preventative action). Please note that regardless of whether a change requires premarket review, the QMSR requires device manufacturers to review and approve changes to device design and production (ISO 13485 clause 7.3 and 21 CFR 820.70) and document changes and approvals in the device master record (21 CFR 820.181).
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 Part 803) for devices or postmarketing safety reporting (21 CFR Part 4, Subpart B) for combination products (see https://www.fda.gov/combination-products/guidance-regulatory-information/postmarketing-safety-reporting-combination-products); good manufacturing practice requirements as set forth in the Quality Management System Regulation (QMSR) (21 CFR Part 820) for devices or current good manufacturing practices (21 CFR Part 4, Subpart A) for combination products; and, if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR Parts 1000-1050.
All medical devices, including Class I and unclassified devices and combination product device constituent parts are required to be in compliance with the final Unique Device Identification System rule ("UDI Rule"). The UDI Rule requires, among other things, that a device bear a unique device identifier (UDI) on its label and package (21 CFR 801.20(a)) unless an exception or alternative applies (21 CFR 801.20(b)) and that the dates on the device label be formatted in accordance with 21 CFR 801.18. The UDI Rule (21 CFR 830.300(a) and 830.320(b)) also requires that certain information be submitted to the Global Unique Device Identification Database (GUDID) (21 CFR Part 830 Subpart E). For additional information on these requirements, please see the UDI System webpage at https://www.fda.gov/medical-devices/device-advice-comprehensive-regulatory-assistance/unique-device-identification-system-udi-system.
Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21 CFR 807.97). For questions regarding the reporting of adverse events under the MDR regulation (21 CFR Part 803), please go to https://www.fda.gov/medical-devices/medical-device-safety/medical-device-reporting-mdr-how-report-medical-device-problems.
For comprehensive regulatory information about medical devices and radiation-emitting products, including information about labeling regulations, please see Device Advice (https://www.fda.gov/medical-
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K261624 - Elizabeth Jodon
Page 3
devices/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-devices/device-advice-comprehensive-regulatory-assistance/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,
LIMIN SUN -S
Limin Sun, Ph.D.
Assistant Director
DHT6A: Division of Joint
Arthroplasty Devices
OHT6: Office of Orthopedic Devices
Office of Product Evaluation and Quality
Center for Devices and Radiological Health
Enclosure
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# Indications for Use
| Please type in the marketing application/submission number, if it is known. This textbox will be left blank for original applications/submissions. | K261624 |
| --- | --- |
| Please provide the device trade name(s). | |
| Omnifit® 20° Series I Insert; Omnifit® Crossfire® 10° Series II Insert; Constrained Acetabular Insert; Trident® Crossfire® 0° Polyethylene Insert; Trident ® Crossfire ® 10° Polyethylene Insert; System 12 Crossfire ® 10° Insert; Trident ® 0° Constrained Acetabular Insert; Trident® Constrained Acetabular Liner; Trident® All Poly Constrained Acetabular Insert; Crossfire® Eccentric Insert 10°; Artisan® Bone Plug; UHR® Universal Head Bipolar Component | |
| Please provide your Indications for Use below. | |
| Omnifit® 20° Series I Insert, Omnifit® Crossfire® 10° Series II Insert, Omnifit® Crossfire® 10° Eccentric Insert, Trident® Crossfire 0° and 10° Polyethylene Insert Indications for Use: • Painful, disabling joint disease of the hip resulting from: degenerative arthritis, rheumatoid arthritis, posttraumatic arthritis or late stage avascular necrosis. • Revision of previous unsuccessful femoral head replacement, cup arthroplasty or other procedure. • Clinical management problems where arthrodesis or alternative reconstructive techniques are less likely to achieve satisfactory results. • Where bone stock is of poor quality or inadequate for other reconstructive techniques as indicated by deficiencies of the acetabulum. Constrained Acetabular Insert, Trident® 0° Constrained Acetabular Insert, Trident® Constrained Acet. Liner, Trident® All Poly Constrained Acetabular Insert Indications for Use: A Constrained Acetabular Insert is indicated for use as a component of a total hip prosthesis in primary and revision patients at high risk of hip dislocation due to a history of prior dislocation, bone loss, joint or soft tissue laxity, neuromuscular disease, or intraoperative instability. System 12 Crossfire® 10° Insert Indications for Use: • Noninflammatory degenerative joint disease, including osteoarthritis and avascular necrosis; • Rheumatoid arthritis; • Correction of functional deformity; • Revision procedures where other treatments or devices have failed; and, • Nonunions, femoral neck fractures, and trochanteric fractures of the proximal femur with head involvement that are unmanageable using other techniques | |
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Artisan® Bone Plug
Indications for Use:
These bone plugs are intended to be placed in the femoral canal prior to the introduction of bone cement in a cemented hip procedure.
The plug is placed distally to the femoral stem to help allow cement pressurization and to help prevent cement migration further down the femoral canal.
UHR® Universal Head Bipolar Component
Indications for Use:
- Femoral head/neck fractures or non-unions.
- Aseptic necrosis of the femoral head.
- Osteo-, rheumatoid, and post-traumatic arthritis of the hip with minimal acetabular involvement or distortion.
Other Considerations:
- Pathological conditions or age considerations which indicate a more conservative acetabular procedure and an avoidance of the use of bone cement in the acetabulum.
- Salvage of failed total hip arthroplasty.
| Please select the types of uses (select one or both, as applicable). | ☑ Prescription Use (21 CFR 801 Subpart D) ☐ Over-The-Counter Use (21 CFR 801 Subpart C) |
| --- | --- |
| Please select the age group(s) for which the device(s) is to be used. | ☐ Neonates/Newborns (Birth to < 29 days old) ☐ Infants (29 days old to < 2 years old) ☐ Children (2 years old to < 12 years old) ☐ Adolescents (12 years old to < 22 years old) ☑ Adults (22 years old and greater) |
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K261624
# **510(k) Summary**
| **Sponsor** | Stryker Orthopaedics 325 Corporate Drive Mahwah, NJ 07430 |
| --- | --- |
| **Contact Person** | Elizabeth Jodon Principal Regulatory Affairs Specialist Howmedica Osteonics Corp 325 Corporate Drive Mahwah, NJ 07430 elizabeth.jodon@stryker.com |
| **Alternate Contact** | Ka Zoua Xiong Regulatory Affairs Consultant Howmedica Osteonics Corp 325 Corporate Drive Mahwah, NJ 07430 kazoua.xiong@stryker.com |
| **Date Prepared:** | 09-July-2026 |
| **Proprietary Name:** | Omnifit® 20° Series I Insert Omnifit® Crossfire® 10° Series II Insert Constrained Acetabular Insert Trident® Crossfire® 0° Polyethylene Insert Trident® Crossfire® 10° Polyethylene Insert System 12 Crossfire® 10° Insert Trident® 0° Constrained Acetabular Insert Trident® Constrained Acetabular Liner Trident® All Poly Constrained Acetabular Insert Crossfire® Eccentric Insert 10° Artisan® Bone Plug UHR® Universal Head Bipolar Component |
| **Common Name:** | Artificial Hip Replacement Components – Acetabular and Femoral |
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K261624
Classification Name: Hip Joint Metal/Polymer/Metal Semi-Constrained Porous-Coated Uncemented Prosthesis (21CFR § 888.3358)
Hip Joint Femoral (hemi-hip) Metallic Cemented or Uncemented Prosthesis. (21 CFR § 888.3360)
Hip Joint Metal/Ceramic/Polymer Semi-Constrained Cemented or Nonporous Uncemented Prosthesis. (21 CFR § 888.3353)
Hip Joint Metal/Polymer Constrained Cemented or Uncemented Prosthesis (21 CFR §888.3310)
Hip Joint Metal/Polymer Semi-Constrained Cemented Prosthesis (21 CFR §888.3350)
Surgical Mesh (21 CFR §878.3300)
Product Codes: LPH, KWL, LWJ, LZO, MEH, KWZ, JDI, LZN
Legally Marketed Primary Predicate Device to Which Substantial Equivalence is Claimed:
The primary predicate for this submission is K243784
Legally Marketed Additional Predicate Device Used to Support Substantial Equivalence:
| Device | Previous Premarket Notifications |
| --- | --- |
| Omnifit® 20° Series I Insert | K900438 K243784 |
| Omnifit® Crossfire® 10° Series II Insert | K974685 K243784 K890197 |
| Constrained Acetabular Insert | K890197 |
| Trident® Crossfire® 0° Polyethylene Insert | K983382 K983502 K991952 K021911 K233498 K243784 |
| Trident® Crossfire® 10° Polyethylene Insert | K983382 K983502 K991952 K021911 K233498 K243784 |
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K261624
| Device | Previous Premarket Notifications |
| --- | --- |
| System 12 Crossfire® 10° Insert | K993352 K121308 K243784 |
| Trident® 0° Constrained Acetabular Insert | K061654 |
| Trident® Constrained Acetabular Liner | K233498 |
| Trident® All Poly Constrained Acetabular Insert | K243784 |
| Omnifit® Crossfire® 10° Eccentric Insert | K974685 K243784 |
| Artisan® Bone Plug | K951860 K220838 K233498 K243784 |
| UHR® Universal Head Bipolar Component | K800207 K910988 K993601 K173499 K222632 K233498 K243784 |
# Rationale for Bundling:
The change proposed is related to updating the packaging configuration of the Ultra High Molecular Weight Polyethylene (UHMWPE) hip devices that are packaged in a Nitrogen Vacuum (N₂Vac) environment. The same proposed packaging configurations may be used among multiple generic product types, and the same supporting data can be used across all product types. In all testing performed to support the proposed packaging change, worst-case devices, representative of all products, were used. Therefore, the testing data represent all products currently bundled in the subject 510(k) submission.
# Device Description:
The devices covered by this Traditional 510(k) Premarket Notification are Stryker Ultra High Molecular Weight Polyethylene (UHMWPE) hip devices (including femoral heads, bone plugs, acetabular inserts and liners) that are packaged in a Nitrogen Vacuum (N₂Vac) environment. The packaging for these devices consists of an impermeable foil pouch in a Polyethylene Terephthalate Glycol (PETG) blister sealed with a Tyvek lid. All subject devices are commercially available and have been found to be substantially equivalent in previous 510(k)s.
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K261624
# **Intended Use:**
The subject devices have the same intended use as those specified in the 510(k) submissions for the predicate devices listed. In general, these devices are intended for use in primary or revision hip arthroplasty.
# **Indications for Use:**
Omnifit® 20° Series I Insert, Omnifit® Crossfire® 10° Series II Insert, Omnifit® Crossfire® 10° Eccentric Insert, Trident® Crossfire 0° and 10° Polyethylene Insert
Indications for Use:
- Painful, disabling joint disease of the hip resulting from: degenerative arthritis, rheumatoid arthritis, posttraumatic arthritis or late stage avascular necrosis.
- Revision of previous unsuccessful femoral head replacement, cup arthroplasty or other procedure.
- Clinical management problems where arthrodesis or alternative reconstructive techniques are less likely to achieve satisfactory results.
- Where bone stock is of poor quality or inadequate for other reconstructive techniques as indicated by deficiencies of the acetabulum.
Constrained Acetabular Insert, Trident® 0° Constrained Acetabular Insert, Trident® Constrained Acet. Liner, Trident® All Poly Constrained Acetabular Insert
Indications for Use:
A Constrained Acetabular Insert is indicated for use as a component of a total hip prosthesis in primary and revision patients at high risk of hip dislocation due to a history of prior dislocation, bone loss, joint or soft tissue laxity, neuromuscular disease, or intraoperative instability.
System 12 Crossfire® 10° Insert
Indications for Use:
- Noninflammatory degenerative joint disease, including osteoarthritis and avascular necrosis;
- Rheumatoid arthritis;
- Correction of functional deformity;
- Revision procedures where other treatments or devices have failed; and,
- Nonunions, femoral neck fractures, and trochanteric fractures of the proximal femur with head involvement that are unmanageable using other techniques
Artisan® Bone Plug
Indications for Use:
These bone plugs are intended to be placed in the femoral canal prior to the introduction of bone cement in a cemented hip procedure.
The plug is placed distally to the femoral stem to help allow cement pressurization and to help prevent cement migration further down the femoral canal.
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K261624
UHR® Universal Head Bipolar Component
Indications for Use:
- Femoral head/neck fractures or non-unions.
- Aseptic necrosis of the femoral head.
- Osteo-, rheumatoid, and post-traumatic arthritis of the hip with minimal acetabular involvement or distortion.
Other Considerations:
- Pathological conditions or age considerations which indicate a more conservative acetabular procedure and an avoidance of the use of bone cement in the acetabulum.
- Salvage of failed total hip arthroplasty
### Summary of Technological Characteristics:
The subject devices are equivalent in intended use, indications for use, product design, product materials, and operational principles to their corresponding predicates. The only difference between the subject devices and corresponding predicate devices is their packaging configurations. The packaging components of the predicate devices contain an inner and outer blister of Barex® Modified Acrylonitrile copolymer sealed with inner and outer foil lids purged with alternating vacuum and nitrogen (N₂Vac). The packaging of the subject devices consist of an impermeable foil pouch in a Polyethylene Terephthalate Glycol (PETG) blister sealed with a Tyvek lid followed by vacuum and nitrogen (N₂Vac) purging. The labeling updates in this submission have no impact on the technological characteristics of the subject and predicate devices.
### Non-Clinical Testing:
The following non-clinical laboratory testing was performed to determine substantial equivalence:
Studies were performed on the subject UHMWPE hip devices to evaluate the effect of the proposed packaging modifications. The studies compared the following material properties of the subject UHMWPE devices for the proposed and current packaging configurations:
- Small Punch per ASTM F2977
- Oxygen Content
- Oxidation Index per ASTM F2102
Design Verification Distribution (ship) and Packaging Performance testing were completed on the subject devices to qualify the proposed packaging configurations. Testing was completed per ISO 11607-1, ASTM F88 / F88M, and ASTM F2096.
Accelerated Aging studies were completed to validate a shelf-life of five (5) years (inclusive of final month) for the subject devices marketed as STERILE per ISO 11607-1, ISO 11607-2, and ASTM F1980.
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K261624
Product endotoxin and cytotoxicity testing were executed as the proposed packaging configuration constitutes a change in packaging materials that contact the product after final cleaning. Endotoxin testing was completed per AAMI ST72, and cytotoxicity testing was completed per ISO 10993-5.
# Clinical Testing:
Clinical testing was not required as a basis for substantial equivalence.
# Conclusion:
Based upon a comparison of the intended use, indications for use, design, material, sterilization method, technical and performance characteristics, and operational principles, the subject devices are substantially equivalent to the predicate devices identified in this Premarket Notification.
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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.