K230761 · Smith & Nephew, Inc. · JDS · Jun 14, 2023 · Orthopedic
Device Facts
Record ID
K230761
Device Name
TRIGEN META-NAIL Nail System
Applicant
Smith & Nephew, Inc.
Product Code
JDS · Orthopedic
Decision Date
Jun 14, 2023
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 888.3030
Device Class
Class 2
Attributes
Therapeutic
Indications for Use
The TRIGEN META-NAIL Retrograde Femoral Nail is indicated for fractures of the femur including stable and unstable distal metaphyseal fractures, diaphyseal fractures, intra-articular fractures, and peri-prosthetic fractures. The TRIGEN META-NAIL Antegrade Tibial Nail is indicated for stable and unstable fractures of the proximal and distal third of the tibia, including the shaft.
Device Story
TRIGEN META-NAIL Nail System consists of cannulated, round titanium alloy (Ti-6Al-4V) intramedullary nails and nail cap set screws; includes preassembled UHMWPE sleeves. Used for internal fixation of long bone fractures in skeletally mature patients. Implants are single-use and Gamma sterilized. Device is surgically implanted by orthopedic surgeons to stabilize fractures, facilitating bone healing. No changes to design, materials, or function compared to predicate systems; submission pertains solely to labeling and indication updates.
Clinical Evidence
No clinical data. Bench testing only (not applicable as no design changes were made).
Technological Characteristics
Materials: Titanium alloy (Ti-6Al-4V) per ASTM F1472/ISO 5832-3; UHMWPE sleeves per ASTM F648/ISO 5834-2. Geometry: Round, cannulated. Diameters: 8.5-13mm; Lengths: 16-50cm. Sterilization: Gamma. No software or electronic components.
Indications for Use
Indicated for skeletally mature patients with stable/unstable femoral fractures (distal metaphyseal, diaphyseal, intra-articular, peri-prosthetic) or stable/unstable tibial fractures (proximal/distal third, shaft).
Regulatory Classification
Identification
Single/multiple component metallic bone fixation appliances and accessories are devices intended to be implanted consisting of one or more metallic components and their metallic fasteners. The devices contain a plate, a nail/plate combination, or a blade/plate combination that are made of alloys, such as cobalt-chromium-molybdenum, stainless steel, and titanium, that are intended to be held in position with fasteners, such as screws and nails, or bolts, nuts, and washers. These devices are used for fixation of fractures of the proximal or distal end of long bones, such as intracapsular, intertrochanteric, intercervical, supracondylar, or condylar fractures of the femur; for fusion of a joint; or for surgical procedures that involve cutting a bone. The devices may be implanted or attached through the skin so that a pulling force (traction) may be applied to the skeletal system.
Predicate Devices
TRIGEN Retrograde Femoral, Supracondylar And Tibial Nails (K051557)
TRIGEN Meta-Nail Retrograde Femoral And Tibial Nails (K061019)
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Image /page/0/Picture/0 description: The image shows the logo of the U.S. Food and Drug Administration (FDA). On the left is the Department of Health & Human Services logo. To the right of that is the FDA logo, which is a blue square with the letters "FDA" in white. To the right of the blue square is the text "U.S. FOOD & DRUG ADMINISTRATION" in blue.
June 14, 2023
Smith & Nephew Inc. Hiral Rathod Sr. Regulatory Affairs Specialist 1450 Brooks Rd E Memphis, Tennessee 38116
Re: K230761
Trade/Device Name: TRIGEN META-NAIL Nail System Regulation Number: 21 CFR 888.3030 Regulation Name: Single/multiple component metallic bone fixation appliances and accessories Regulatory Class: Class II Product Code: JDS Dated: March 17, 2023 Received: March 20, 2023
Dear Hiral Rathod:
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
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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 of medical device-related adverse events) (21 CFR 803) for devices or postmarketing safety reporting (21 CFR 4, Subpart B) for combination products (see https://www.fda.gov/combination-products/guidance-regulatory-information/postmarketing-safety-reportingcombination-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 medical devices and radiation-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, | |
|------------|---------------------------------------------|
| Joseph P. | Digitally signed by Joseph P.<br>Russell -S |
| Russell -S | Date: 2023.06.14 17:42:15<br>-04'00' |
For: Farzana Sharmin, Ph.D.
Acting 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
510(k) Number (if known) K230761
Device Name TRIGEN META-NAIL Nail System
#### Indications for Use (Describe)
The TRIGEN META-NAIL Retrograde Femoral Nail is indicated for fractures of the femur including stable and unstable distal metaphyseal fractures, diaphyseal fractures, intra-articular fractures, and peri-prosthetic fractures.
The TRIGEN META-NAIL Antegrade Tibial Nail is indicated for stable and unstable fractures of the proximal and distal third of the tibia, including the shaft.
Type of Use (Select one or both, as applicable)
| <span style="font-size:12px">☑ Prescription Use (Part 21 CFR 801 Subpart D)</span> | <span style="font-size:12px">☐ Over-The-Counter Use (21 CFR 801 Subpart C)</span> |
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| Contact Detail | | | 21 CFR 807.92(a)(1) |
|------------------------------------|--------------------------------------------------------------------------------|--|---------------------|
| Applicant name | Smith & Nephew Inc. | | |
| Applicant Address | 1450 Brooks Rd E Memphis TN 38116 United States | | |
| Applicant Contact Telephone | 901-205-4852 | | |
| Applicant Contact | Ms. Hiral Rathod | | |
| Applicant Contact Email | hiral.rathod@smith-nephew.com | | |
| Device Name | | | 21 CFR 807.92(a)(2) |
| Device Trade Name | TRIGEN META-NAIL Nail System | | |
| Common Name | Nail, Fixation, Bone | | |
| Classification Name | Single/multiple component metallic bone fixation appliances<br>and accessories | | |
| Regulation Number | 888.3030 | | |
| Product Code | JDS | | |
| Legally Marketed Predicate Devices | | | 21 CFR 807.92(a)(3) |
| Predicate # | Predicate Trade Name (Primary Predicate is listed first) | | Product Code |
| K051557 | TRIGEN Retrograde Femoral, Supracondylar And Tibial Nails | | JDS |
| K061019 | TRIGEN Meta-Nail Retrograde Femoral And Tibial Nails | | JDS |
| K981529 | Titanium Intramedullary Nail, Titanium Locking Screw | | JDS |
| Device Description Summary | | | 21 CFR 807.92(a)(4) |
The purpose of this traditional 510K is notifying FDA of Smith & Nephew's intent to request clearance for labeling updates which include indication updates in IFU/Package Insert to Smith & Nephew's TRIGEN META-NAIL Nail Systems. There are no significant changes in design, technological characteristics, function, sterilization and packaging of the devices, as a result of this submission. The TRIGEN META-NAIL Nail Systems is designed to be used for internal fixation of long bones in skeletally mature patients.
The Subject TRIGEN META-NAIL Systems include TRIGEN Retrograde Femoral, Supracondylar and Tibial Nails (K051557, 6/30/2005), TRIGEN Meta-Nail Retrograde Femoral and Tibial Nails and TRIGEN META-NAIL Nail Cap Set Screw (K061019, 6/6/2006).
The subject Smith & Nephew TRIGEN META-NAIL Systems devices are identical in function, design features, materials, sterilization, manufacturing methods and operational principles to what was previously 510(k) cleared. These labeling updates do not affect the safety and effectiveness of the subject devices when used as labeled.
The TRIGEN META Antegrade Tibial Nails and the TRIGEN META Retrograde Femoral Nails are intended for the internal fixation of long bones in skeletally mature patients.
The TRIGEN META Antegrade Tibial Nails and the TRIGEN META Retrograde Femoral Nails have a round, cannulated geometry and are composed of biocompatible titanium alloy (Ti-6AI-4V complied to ASTM F1472/ISO 5832-3). The TRIGEN META-NAIL Antegrade Tibial Nail & Retrograde Femoral Nails are provided preassembled with polyethylene sleeves, which are manufactured from ultra-high molecular weight polyethylene (UHMWPE)] conforming to ASTM F648 and ISO 5834-2. The TRIGEN META Antegrade Tibial Retrograde Femoral Nailing System also include nail cap set screws. The
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# 510k Summary
META Nail Cap Set Screw is also composed of the same Titanium alloy (TI-6Al-4V) as the nail implants. This material is identical to material that has been in previous Smith&Nephew Intramedullary nail system submission including the predicate TRIGEN Retrograde Femoral, Supracondylar and Tibial Nails (K051557, 6/30/2005), TRIGEN Meta-Nail Retrograde Femoral and Tibial Nails (K061019, 6/6/2006), and Titanium Intramedullary Nail, Titanium Locking Screw (K981529, 7/9/1998). These implants are design to provide a solution for fracture fixation and are offered in a variety of diameters (8.5-13mm) and lengths (16-50cm).
The implants within this system are single-use and are Gamma sterilized.
#### Intended Use/Indications for Use
21 CFR 807.92(a)(5)
The TRIGEN META-NAIL Retrograde Femoral Nail is indicated for fractures of the femur including stable and unstable distal metaphyseal fractures, diaphyseal fractures, intra-articular fractures, and periprosthetic fractures.
The TRIGEN META-NAIL Antegrade Tibial Nail is indicated for stable and unstable fractures of the proximal and distal third of the tibia, including the shaft.
#### Indications for Use Comparison
## 21 CFR 807.92(a)(5)
The purpose of this Traditional 510K is to notify FDA of our intent to request clearance for changes to Smith & Nephew's TRIGEN META-NAIL Nail System labeling which include updated indications. The Indications provided in the Predicate 510ks were for overall Intramedullary nail system which were not all applicable to the Subject TRIGEN META-NAIL Nail System. Indication updates include removal of non-applicable Indications. Additionally, the indication verbiage is updated to clearly state the specific long bones the nails are used in and are more focused on the fracture; Retrograde Femoral Nails are used in the femur; Tibial Nails are used in the tibia; which does not constitute a new intended use.
The Smith & Nephew TRIGEN META-NAIL Nail Systems are identical in function, design features, materials, sterilization, manufacturing methods and operational principles to the commercially available predicate devices TRIGEN Retrograde Femoral, Supracondylar and Tibial Nails (K051557, 6/30/2005) and TRIGEN Meta-Nail Retrograde Femoral and Tibial Nails (K061019, 6/6/2006) and Titanium Intramedullary Nail, Titanium Locking Screw (K981529, 7/9/1998).
## Technological Comparison
## 21 CFR 807.92(a)(6)
21 CFR 807.92(b)
The overall technological characteristic including device design and material of the subject devices are the same as the predicate Smith & Nephew, Inc. Nailing system cleared under the premarket notifications TRIGEN Retrograde Femoral, Supracondylar and Tibial Nails (K051557, 6/30/2005), TRIGEN Meta-Nail Retrograde Femoral and Tibial Nails (K061019, 6/6/2006), and Titanium Intramedullary Nail, Titanium Locking Screw (K981529, 7/9/1998).
As result, all relevant testing makes references to existing information provided to the agency.
## Non-Clinical and/or Clinical Tests Summary & Conclusions
The purpose of this traditional 510(k) is to request clearance from FDA for labeling changes to the subject Smith & Nephew TRIGEN META-NAIL Nail System implants.
The subject Smith & Nephew TRIGEN META-NAIL Nail System devices are identical in function, design features, materials, sterilization, manufacturing methods and operational principles to what was
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previously 510(k) cleared. These labeling updates do not affect the safety and effectiveness of the subject devices when used as labeled.
Therefore, since there are no changes to the design features, materials, or manufacturing methods of the subject TRIGEN META-NAIL Nail System devices, no performance testing (bench, animal, clinical) was required.
No modifications are being introduced to the subject devices as a result of this filing. The subject devices are substantially equivalent to the previously 510(k) cleared predicate devices.
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.