K210980 · Smith & Nephew, Inc. · HSB · Nov 14, 2022 · Orthopedic
Device Facts
Record ID
K210980
Device Name
Smith & Nephew Intramedullary Nail Systems
Applicant
Smith & Nephew, Inc.
Product Code
HSB · Orthopedic
Decision Date
Nov 14, 2022
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 888.3020
Device Class
Class 2
Attributes
Therapeutic
Indications for Use
Indications for interlocking intramedullary nails include simple long bone fractures; severely comminuted, spiral, large oblique and segmental fractures; nonunions and malunions; polytrauma and multiple fractures; prophylactic nailing of impending pathologic fractures; reconstruction following tumor resection and grafting; supracondylar fractures; bone lengthening. Interlocking intramedullary nails are indicated for fixation of fractures that occur in and between the proximal and distal third of the long bones being treated. In addition to the indications for interlocking intramedullary nails, devices that contain holes/slots proximally to accept screws that thread into the femoral head for compression and rotational stability (e.g. Femoral Antegrade Nail, Trochanteric Antegrade Nail and Femoral/Recon Antegrade Nail) are indicated for the following: subtrochanteric fractures, intertrochanteric fractures, and ipsilateral femoral shaft/neck fractures. In addition to the indications for interlocking intramedullary nails, devices that use a retrograde femoral surgical approach (e.g. Knee Nail, Retrograde and Supracondylar Nails) are indicated for the following: comminuted supracondylar fractures with or without intra-articular extension; fractures that require opening the knee joint to stabilize the femoral condylar segment; fractures above total knee implants (periprosthetic fractures).
Device Story
Intramedullary nail systems for orthopedic fracture fixation; titanium/titanium alloy construction; surgical implantation in long bones (femur, tibia, humerus) or hindfoot/knee joints. Devices provide structural stability for bone healing. Subject submission updates labeling with MR safety information based on bench testing. No changes to design, materials, or manufacturing.
Clinical Evidence
No clinical data. Bench testing only, specifically MRI compatibility assessment per FDA guidance and standards (ASTM F2182, F2052, F2213, F2119; IEC 60601-2-33; ISO/TS 10974).
Technological Characteristics
Titanium or titanium alloy intramedullary nails and screws. Mechanical fixation. No changes to design, dimensions, or materials from predicates. MR safety testing performed per ASTM F2182-19e2, F2052-15, F2213-2017, F2119-07.
Indications for Use
Indicated for patients with long bone fractures (simple, comminuted, spiral, oblique, segmental), nonunions, malunions, polytrauma, impending pathologic fractures, tumor resection reconstruction, bone lengthening, and specific femoral/humeral/hindfoot/knee arthrodesis indications. Contraindications not specified.
Regulatory Classification
Identification
An intramedullary fixation rod is a device intended to be implanted that consists of a rod made of alloys such as cobalt-chromium-molybdenum and stainless steel. It is inserted into the medullary (bone marrow) canal of long bones for the fixation of fractures.
Predicate Devices
Trigen Antegrade Tibial/Retrograde Femoral Nailing System (K981529, K051557, K061019)
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November 14, 2022
Image /page/0/Picture/1 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.
Smith & Nephew, Inc. Michelle Huettner Regulatory Affairs Specialist 7135 Goodlett Farms Parkway Cordova, Tennessee 38016
Re: K210980
Trade/Device Name: Smith & Nephew Intramedullary Nail Systems Regulation Number: 21 CFR 888.3020 Regulation Name: Intramedullary fixation rod Regulatory Class: Class II Product Code: HSB, JDS Dated: November 8, 2022 Received: November 8, 2022
Dear Michelle Huettner:
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 requirements, including, but not limited to: registration and listing (21 CFR Part 807); labeling (21 CFR Part
{1}------------------------------------------------
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 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,
Digitally signed by Farzana Earzana Sharmin -9 Sharmin -S
For Victoria Lilling, M.D. Assistant Division 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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510(k) Number (if known) K210980
#### Device Name
Trigen Antegrade Tibial/Retrograde Femoral Nailing System
#### Indications for Use (Describe)
Indications for interlocking intramedullary nails include simple long bone fractures; severely comminuted, spiral, large oblique and segmental fractures; nonunions; polytrauma and multiple fractures; prophylactic nailing of impending pathologic fractures; reconstruction following tumor resection and grafting; supracondylar fractures; bone lengthening and shortening. Intramedulary nails are indicated for fixation of fractures that occur in and between the proximal and distal third of the long bones being treated.
In addition to the indications for intramedullary nails, devices that contain holes/slots proximally to accept screws that thread into the femoral head for compression and rotational stability (e.g. Femoral Antegrade Nail, Trochanteric Antegrade Nail and Femoral/Recon Antegrade Nail) are indicated for the following: subtrochanteric fractures, intertrochanteric fractures, and ipsilateral femoral shaft/neck fractures.
In addition to the indications for intramedulary nails, devices that use a retrograde femoral surgical approach (e.g. Knee Nail, Retrograde and Supracondylar Nails) are indicated for the following: comminuted supracondylar fractures with or without intra-articular extension; fractures that require opening the knee joint to stabilize the femoral condylar segment; fractures above total knee implants (periprosthetic fractures).
| Type of Use ( <i>Select one or both, as applicable</i> ) | | |
|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-------------------------------------------------------|---------------------------------------------|
| <table style="border:none"><tr><td><b>X</b> Prescription Use (Part 21 CFR 801 Subpart D) </td><td> Over-The-Counter Use (21 CFR 801 Subpart C) </td></tr></table> | <b>X</b> Prescription Use (Part 21 CFR 801 Subpart D) | Over-The-Counter Use (21 CFR 801 Subpart C) |
| <b>X</b> Prescription Use (Part 21 CFR 801 Subpart D) | Over-The-Counter Use (21 CFR 801 Subpart C) | |
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510(k) Number (if known) K210980
### Device Name
Trigen Tan/Fan Nailing System
#### Indications for Use (Describe)
Indications for interlocking intramedullary nails include simple long bone fractures; severely comminuted, spiral, large oblique and segmental fractures; nonunions; polytrauma and multiple fractures; prophylactic nailing of impending pathologic fractures; reconstruction following tumor resection and grafting; supracondylar fractures; bone lengthening and shortening. Intramedullary nails are indicated for fixation of fractures that occur in and between the proximal and distal third of the long bones being treated.
In addition to the indications for interlocking intramedullary nails, devices that contain holes/slots proximally to accept screws that thread into the femoral head for compression and rotational stability ( e.g. Femoral Antegrade Nail, Trochanteric Antegrade Nail and Femoral/Recon Antegrade Nail) are indicated for the following: subtrochanteric fractures, intertrochanteric fractures, and ipsilateral femoral shaft/ neck fractures.
In addition to the indications for interlocking intramedulary nails, devices that use a retrograde femoral surgical approach (e.g. Knee Nail, Retrograde and SupracondylarNails) are indicated for the following: comminuted supracondylar fractures with or without intra-articular extension; fractures that require opening the knee joint to stabilize the femoral condylar segment; fractures above total knee implants (peri-prosthetic fractures).
| Type of Use (Select one or both, as applicable) | |
|------------------------------------------------------------------------------------------|--------------------------------------------------------------------------------|
| <div> <span> <b> </b> Prescription Use (Part 21 CFR 801 Subpart D) </span> </div> | <div> <span> Over-The-Counter Use (21 CFR 801 Subpart C) </span> </div> |
CONTINUE ON A SEPARATE PAGE IF NEEDED
### CONTINUE ON A SEPARATE PAGE IF NEEDED.
This section applies only to requirements of the Paperwork Reduction Act of 1995.
### *DO NOT SEND YOUR COMPLETED FORM TO THE PRA STAFF EMAIL ADDRESS BELOW.*
The burden time for this collection of information is estimated to average 79 hours per response, including the time to review instructions, search existing data sources, gather and maintain the data needed and complete and review the collection of information. Send comments regarding this burden estimate or any other aspect of this information collection, including suggestions for reducing this burden, to:
> Department of Health and Human Services Food and Drug Administration Office of Chief Information Officer Paperwork Reduction Act (PRA) Staff PRAStaff(@fda.hhs.gov
{4}------------------------------------------------
510(k) Number (if known) K210980
Device Name Trigen Hindfoot Fusion Nail System
#### Indications for Use (Describe)
Indications for the TRIGEN Hindfoot Fusion Nail (HFN) include the following; degeneration, deformity, or trauma of both the tibiotalar and talocalcaneal articulations of the hindfoot: tibiocalcaneal arthrodesis of the ankle and sub-talar joints; ayascular necrosis of the ankle and sub-talar joints; failed total ankle replacement with sub-talar intrusion; failed ankle arthrodesis with insufficient talar body; theumatoid arthritis; severe deformity secondary to untreated talipes equinovarus or neuromuscular disease; and severe with trauma to the sub-talar joint.
| Type of Use (Select one or both, as applicable) | |
|-------------------------------------------------|--|
|-------------------------------------------------|--|
X Prescription Use (Part 21 CFR 801 Subpart D)
Over-The-Counter Use (21 CFR 801 Subpart C)
#### CONTINUE ON A SEPARATE PAGE IF NEEDED.
This section applies only to requirements of the Paperwork Reduction Act of 1995.
#### *DO NOT SEND YOUR COMPLETED FORM TO THE PRA STAFF EMAIL ADDRESS BELOW.*
The burden time for this collection of information is estimated to average 79 hours per response, including the time to review instructions, search existing data sources, gather and maintain the data needed and complete and review the collection of information. Send comments regarding this burden estimate or any other aspect of this information collection, including suggestions for reducing this burden, to:
> Department of Health and Human Services Food and Drug Administration Office of Chief Information Officer Paperwork Reduction Act (PRA) Staff PRAStaff(@fda.hhs.gov
"An agency may not conduct or sponsor, and a person is not required to respond to, a collection of information unless it displays a currently valid OMB number."
Form Approved: OMB No. 0910-0120
Expiration Date: 06/30/2023
See PRA Statement below.
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510(k) Number (if known) K210980
Device Name Trigen Humeral Nail System
### Indications for Use (Describe)
The TRIGEN Humeral Nail System is indicated for proximal and/or diaphyseal fractures of the humerus, malalignments, pathological humeral fractures, and impending pathological fractures.
Type of Use (Select one or both, as applicable)
X Prescription Use (Part 21 CFR 801 Subpart D)
Over-The-Counter Use (21 CFR 801 Subpart C)
#### CONTINUE ON A SEPARATE PAGE IF NEEDED.
This section applies only to requirements of the Paperwork Reduction Act of 1995.
#### *DO NOT SEND YOUR COMPLETED FORM TO THE PRA STAFF EMAIL ADDRESS BELOW.*
The burden time for this collection of information is estimated to average 79 hours per response, including the time to review instructions, search existing data sources, gather and maintain the data needed and complete and review the collection of information. Send comments regarding this burden estimate or any other aspect of this information collection, including suggestions for reducing this burden, to:
> Department of Health and Human Services Food and Drug Administration Office of Chief Information Officer Paperwork Reduction Act (PRA) Staff PRAStaff@fda.hhs.gov
{6}------------------------------------------------
510(k) Number (if known) K210980
Device Name
Trigen Intertan Intertrochanteric Antegrade Nail System
Indications for Use (Describe)
The TRIGEN InterTAN nails are indicated for simple long bone fractures; severely comminuted, spiral, long oblique and segmental fractures; nonunions; polytrauma and multiple fractures; prophylactic nailing of impending pathologic fractures; reconstruction, following tumor resection and grafting; bone lengthening; subtrochanteric fractures; ipsilateral fractures; intertrochanteric fractures; and intracapsular fractures.
| 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)
#### CONTINUE ON A SEPARATE PAGE IF NEEDED.
This section applies only to requirements of the Paperwork Reduction Act of 1995.
### *DO NOT SEND YOUR COMPLETED FORM TO THE PRA STAFF EMAIL ADDRESS BELOW."
The burden time for this collection of information is estimated to average 79 hours per response, including the time to review instructions, search existing data sources, gather and maintain the data needed and complete and review the collection of information. Send comments regarding this burden estimate or any other aspect of this information collection, including suggestions for reducing this burden, to:
> Department of Health and Human Services Food and Drug Administration Office of Chief Information Officer Paperwork Reduction Act (PRA) Staff PRAStaff(@fda.hhs.gov
{7}------------------------------------------------
510(k) Number (if known) K210980
Device Name Trigen Knee Fusion Nail System
Indications for Use (Describe) Knee Fusion Nails are intended for intramedullary knee arthrodesis.
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)
#### CONTINUE ON A SEPARATE PAGE IF NEEDED.
This section applies only to requirements of the Paperwork Reduction Act of 1995.
#### *DO NOT SEND YOUR COMPLETED FORM TO THE PRA STAFF EMAIL ADDRESS BELOW.*
The burden time for this collection of information is estimated to average 79 hours per response, including the time to review instructions, search existing data sources, gather and maintain the data needed and complete and review the collection of information. Send comments regarding this burden estimate or any other aspect of this information collection, including suggestions for reducing this burden, to:
> Department of Health and Human Services Food and Drug Administration Office of Chief Information Officer Paperwork Reduction Act (PRA) Staff PRAStaff(@fda.hhs.gov
{8}------------------------------------------------
# 510(k) Summary
| Submitted by: | Smith & Nephew, Inc. |
|----------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| | Orthopaedic Division |
| | 7135 Goodlett Farms Parkway |
| | Cordova, Tennessee 38016 |
| Date of Submission: | November 7, 2022 |
| Contact Person: | Senior Manager, Regulatory Affairs<br>Email: Rose.Beifuss@smith-nephew.com |
| | Phone: (385) 253-2551 |
| Name of Device: | Smith & Nephew Intramedullary Nail Systems<br>Trigen Antegrade Tibial/Retrograde Femoral<br>Nailing System Trigen Tan/Fan Nailing System Trigen Hindfoot Fusion Nail System Trigen Humeral Nail System Trigen Intertan Intertrochanteric Antegrade Nail<br>System Trigen Knee Fusion Nail System |
| Common Name: | Intramedullary Nails |
| Device Classification Name and<br>Reference: | 21 CFR 888.3020 – Intramedullary fixation rod with<br>corresponding Product Code HSB |
{9}------------------------------------------------
21 CFR 888.3030 – Single/multiple component metallic bone fixation appliances and accessories with corresponding Product Codes JDS
| Device Class: | Class II |
|-------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Panel Code: | Orthopaedics/87 |
| Product Code: | HSB - Intramedullary fixation rod<br>JDS - Single/multiple component metallic bone fixation<br>appliances and accessories |
| Predicate Device: | Smith & Nephew Intramedullary Nail Systems<br>• Trigen Antegrade Tibial/Retrograde Femoral<br>Nailing System (K981529 S.E. 7/9/1998, K051557<br>S.E. 6/30/2005 and K061019 S.E. 6/6/2006)<br>• Trigen Tan/Fan Nailing System (K981529 S.E.<br>7/9/1998 K040929 S.E.5/25/2004, and K111025<br>S.E. 7/1/2011)<br>• Trigen Hindfoot Fusion Nail System (K043052<br>S.E. 11/24/2004)<br>• Trigen Humeral Nail System (K032722 S.E.<br>10/1/2003)<br>• Trigen Intertan Intertrochanteric Antegrade Nail<br>System (K040212 S.E. 2/20/2004)<br>• Trigen Knee Fusion Nail System (K050938 S.E.<br>5/4/2005) |
{10}------------------------------------------------
## Device Description:
The purpose of this Traditional 510(k) is to add the MR safety information to the labeling and update the information within the package insert for the Smith & Nephew Intramedullary Nail Systems. The Smith & Nephew Intramedullary Nail Systems consist of the following previously cleared devices:
- Trigen Antegrade Tibial/Retrograde Femoral Nailing System (K981529 S.E. . 7/9/1998, K051557 S.E. 6/30/2005 and K061019 S.E. 6/6/2006)
- The Trigen Antegrade Tibial/Retrograde Femoral Nailing System includes retrograde femoral, supercondylar, and tibial intramedullary nails, and nail cap. All described components are manufactured from titanium material.
- Trigen Tan/Fan Nailing System (K981529 S.E. 7/9/1998, , K040929 S.E. 5/25/2004, ● and K111025 S.E. 7/1/2011)
- The Trigen Tan/Fan Nailing System includes trochanteric antegrade nails and femoral antegrade nails, femoral and tibial nails and low profile bone screws. All components are manufactured from titanium alloy.
- Trigen Hindfoot Fusion Nail System (K043052 S.E. 11/24/2004) .
- The Trigen Hindfoot Fusion Nail System includes right and left nail designs in 10 mm and 11.5 mm with nail lengths ranging from 16-25 ст.
- . Trigen Humeral Nail System (K032722 S.E. 10/1/2003)
- The Trigen Humeral Nail System includes both a proximal fracture nail - (8 mm diameter and 16 cm length) and a shaft fracture nail (8 to 10 mm diameter and 18 to 28 cm lengths) with features of a diverging proximal screw hole pattern for better stability. All components are made of titanium material.
- Trigen Intertan Intertrochanteric Antegrade Nail System (K040212 S.E. 2/20/2004) ●
- The Trigen Intertan Intertrochanteric Antegrade Nail System includes right and left nail designs as well as a universal nail which can be used for both left or right side fracture. All described nails are manufactured from titanium material.
- . Trigen Knee Fusion Nail System (K050938 S.E. 5/4/2005)
{11}------------------------------------------------
- The Trigen Knee Fusion Nail System includes intramedullary interlocking nails with corresponding screws. All components are made of titanium material.
The technological characteristics, function of the devices, packaging and sterilization remain unchanged. No modifications have been made to the device design, material, sterilization and the manufacturing processes of the previously cleared devices as a part of this subject 510(k).
## Indications for Use
### Trigen Antegrade Tibial/Retrograde Femoral Nailing System
Indications for interlocking intramedullary nails include simple long bone fractures; severely comminuted, spiral, large oblique and segmental fractures; nonunions and malunions; polytrauma and multiple fractures; prophylactic nailing of impending pathologic fractures; reconstruction following tumor resection and grafting; supracondylar fractures; bone lengthening. Interlocking intramedullary nails are indicated for fixation of fractures that occur in and between the proximal and distal third of the long bones being treated.
In addition to the indications for interlocking intramedullary nails, devices that contain holes/slots proximally to accept screws that thread into the femoral head for compression and rotational stability (e.g. Femoral Antegrade Nail, Trochanteric Antegrade Nail and Femoral/Recon Antegrade Nail) are indicated for the following: subtrochanteric fractures, intertrochanteric fractures, and ipsilateral femoral shaft/neck fractures.
In addition to the indications for interlocking intramedullary nails, devices that use a retrograde femoral surgical approach (e.g. Knee Nail, Retrograde and Supracondylar Nails) are indicated for the following: comminuted supracondylar fractures with or without intra-articular extension; fractures that require opening the knee joint to stabilize the femoral condylar segment; fractures above total knee implants (periprosthetic fractures).
{12}------------------------------------------------
## Trigen Tan/Fan Nailing System
Indications for interlocking intramedullary nails include simple long bone fractures; severely comminuted, spiral, large oblique and segmental fractures; nonunions and malunions; polytrauma and multiple fractures; prophylactic nailing of impending pathologic fractures; reconstruction following tumor resection and grafting; supracondylar fractures; bone lengthening. Interlocking intramedullary nails are indicated for fixation of fractures that occur in and between the proximal and distal third of the long bones being treated.
In addition to the indications for interlocking intramedullary nails, devices that contain holes/slots proximally to accept screws that thread into the femoral head for compression and rotational stability (e.g. Femoral Antegrade Nail, Trochanteric Antegrade Nail and Femoral/Recon Antegrade Nail) are indicated for the following: subtrochanteric fractures, intertrochanteric fractures, and ipsilateral femoral shaft/ neck fractures.
In addition to the indications for interlocking intramedullary nails, devices that use a retrograde femoral surgical approach (e.g. Knee Nail, Retrograde and Supracondylar Nails) are indicated for the following: comminuted supracondylar fractures with or without intra-articular extension; fractures that require opening the knee joint to stabilize the femoral condylar segment; fractures above total knee implants (peri-prosthetic fractures).
## Trigen Hindfoot Fusion Nail System
Indications for the TRIGEN Hindfoot Fusion Nail (HFN) include the following: degeneration, deformity, or trauma of both the tibiotalar and talocalcaneal articulations of the hindfoot; tibiocalcaneal arthrodesis; combined arthrodesis of the ankle and sub-talar joints; avascular necrosis of the ankle and sub-talar joints; failed total ankle replacement with sub-talar intrusion; failed ankle arthrodesis with insufficient talar body; rheumatoid arthritis; severe deformity secondary to untreated talipes equinovarus or neuromuscular disease; and severe pilon fractures with trauma to the sub-talar joint.
{13}------------------------------------------------
## Trigen Humeral Nail System
The TRIGEN Humeral Nail System is indicated for proximal and/or diaphyseal fractures of the humerus, non-unions, malalignments, pathological humeral fractures, and impending pathological fractures.
## Trigen Intertan Intertrochanteric Antegrade Nail System
The TRIGEN InterTAN nails are indicated for simple long bone fractures; severely comminuted, spiral, long oblique and segmental fractures; nonunions and malunions; polytrauma and multiple fractures; prophylactic nailing of impending pathologic fractures; reconstruction, following tumor resection and grafting; bone lengthening; subtrochanteric fractures; ipsilateral femoral shaft/neck fractures; intertrochanteric fractures; and intracapsular fractures.
## Trigen Knee Fusion Nail System
Knee Fusion Nails are intended for intramedullary knee arthrodesis.
## Technological Characteristics
The overall device design and material of the subject devices are the predicate Smith & Nephew Intramedullary Nail Systems cleared under the premarket notifications listed in Table 5.1.
{14}------------------------------------------------
## Substantial Equivalence Information
The Smith & Nephew Intramedullary Nail Systems are identical in function, design features, materials, sterilization, manufacturing methods and operational principles to the commercially available predicate devices listed in Table 5.1 below.
| Manufacturer | Description | Submission<br>Number | Clearance<br>Date | Product<br>Code |
|----------------|--------------------------------------------------------------|-------------------------------|-----------------------------------|-----------------|
| Smith & Nephew | Trigen Antegrade Tibial/Retrograde<br>Femoral Nailing System | K981529<br>K051557<br>K061019 | 7/9/1998<br>6/30/2005<br>6/6/2006 | JDS |
| Smith & Nephew | Trigen Hindfoot Fusion Nail System | K043052 | 11/24/2004 | HSB |
| Smith & Nephew | Trigen Tan/Fan Nailing System | K981529K0409<br>29K111025 | 7/9/1998<br>5/25/2004<br>7/1/2011 | JDS<br>HSB |
| Smith & Nephew | Trigen Humeral Nail System | K032722 | 10/1/2003 | HSB |
| Smith & Nephew | Trigen Intertan Intertrochanteric<br>Antegrade Nail System | K040212 | 2/20/2004 | JDS |
| Smith & Nephew | Trigen Knee Fusion Nail System | K050938 | 5/4/2005 | JDS |
Table 5.1: Substantially Equivalent Predicates to the Intramedullary Nail Systems
{15}------------------------------------------------
## Performance Data
Below listed Magnetic Resonance Imaging (MRI) compatibility testing was conducted as per the FDA's guidance and the Standards listed below.
- 1. FDA Guidance Document: "Testing and Labeling Medical Devices for Safety in the Magnetic Resonance (MR) Environment: Guidance for Industry and Food and Drug Administration Staff", 20 May 2021.
- 2. Reporting of Computational Modeling Studies in Medical Device Submissions, Guidance for Industry and Food and Drug Administration Staff, September 21, 2016
- 3. IEC 60601-2-33 (Ed 3.2), "Medical electrical equipment –Part 2-33: Particular requirements for the basic safety and essential performance of magnetic resonance equipment for medical diagnosis" (2015).
- 4. ASTM F2182-19e2, "Standard Test Method for Measurement of Radio Frequency
- 5. Induced Heating on or Near Passive Implants During Magnetic Resonance Imaging" (2020).
- 6. ISO/TS 10974:2018(E) "Assessment of the safety of magnetic resonance imaging for patients with an active implantable medical device".
- 7. ASTM F2052-15 Standard Test Method for Measurement of Magnetically Induced Displacement Force on Medical Devices in the Magnetic Resonance Environment.
- 8. ASTM F2213-2017 Standard Test Method for Measurement of Magnetically Induced Torque on Medical Devices in the Magnetic Resonance Environment
- 9. ASTM F2182-19 Standard Test Method for Measurement of Radio Frequency Induced Heating On or Near Passive Implants during Magnetic Resonance Imaging
- 10. ASTM F2119-07 (2013) Standard Test Method for Evaluation of MR Image Artifacts from Passive Implants
## Conclusion
In summary, the only differences between the subject devices and the commercially available predicate devices were supporting MR safety testing/assessment and the addition of MR safety information to the labeling. These differences are not critical to the intended use of the subject devices and do not change the indications for use. Due to the supporting testing and evidence within this filing, it is concluded that the Smith & Nephew Intramedullary Nail Systems are substantially equivalent to the predicate devices.
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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.