The PRO-TOE® Hammertoe Fixation Systems are indicated for the fixation of osteotomies and reconstruction of the lesser toes following correction procedures for hammertoe, claw toe, and mallet toe. Cannulated Implants in the PRO-TOE® Hammertoe Fixation Systems can be used with K-wires for the delivery of implants or the temporary stabilization of outlying joints (e.g. MTP Joint). The Implantable K-Wires are indicated for use in fixation of bone fractures, for bone reconstructions, and as guide pins for insertion of other implants. Additionally, Implantable K-Wires are indicated for the fixation of osteotomies and reconstruction of the lesser toe following correction procedures for hammertoe, claw toe, mallet toe, and metatarsophalangeal joint instability.
Device Story
PRO-TOE® Hammertoe Fixation System consists of metallic implants (stainless steel or titanium) and instruments for lesser toe reconstruction; includes cannulated implants and implantable K-wires. Used by orthopedic surgeons in clinical settings for fixation of osteotomies and stabilization of joints. Cannulated implants facilitate K-wire delivery; K-wires serve as guide pins or temporary stabilization for outlying joints like MTP. System provides mechanical fixation to maintain bone alignment during healing; benefits patients by correcting toe deformities and stabilizing joints post-procedure.
Clinical Evidence
No clinical data. Substantial equivalence supported by bench testing (mathematical mechanical analysis of static bend testing).
Technological Characteristics
Materials: surgical grade stainless steel or titanium. Components: cannulated and non-cannulated metallic bone fixation fasteners and K-wires. Design: proximal and distal fixation features, multiple sizes. Energy source: none (mechanical). Sterilization: not specified.
Indications for Use
Indicated for patients requiring fixation of osteotomies and reconstruction of lesser toes (hammertoe, claw toe, mallet toe) and metatarsophalangeal joint instability. Cannulated implants and K-wires used for bone fracture fixation, bone reconstruction, and temporary stabilization of outlying joints (e.g., MTP joint).
Regulatory Classification
Identification
A smooth or threaded metallic bone fixation fastener is a device intended to be implanted that consists of a stiff wire segment or rod made of alloys, such as cobalt-chromium-molybdenum and stainless steel, and that may be smooth on the outside, fully or partially threaded, straight or U-shaped; and may be either blunt pointed, sharp pointed, or have a formed, slotted head on the end. It may be used for fixation of bone fractures, for bone reconstructions, as a guide pin for insertion of other implants, or it may be implanted through the skin so that a pulling force (traction) may be applied to the skeletal system.
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PRO-TOE® Hammertoe System
Traditional 510(k)
Image /page/0/Picture/3 description: The image shows a date, "MAR 07 2014", in bold black font. The date is likely a stamp or printed on a document. The letters and numbers are clear and legible against a white background.
Image /page/0/Picture/4 description: The image shows the word "WRIGHT." in a bold, sans-serif font. Below the word is a graphic design element that appears to be a stylized representation of wings or a similar abstract shape. The overall design is simple and clean, with a focus on the text and the graphic element.
Wright Medical Technology, Inc. 5677 Airline Road Arlington, TN 38002 www.wmt.com
## 510(K) SUMMARY
In accordance with the Food and Drug Administration Rule to implement provisions of the Safe Medical Devices Act of 1990 and in conformance with 21 CFR 807.92, this information serves as a Summary of Safety and Effectiveness for the use of the WMT PRO-TOE® Hammertoe Fixation System line additions.
(a)(1). Submitted By:
Date:
Contact Person:
(a)(2). Proprietary Name:
Common Name:
Classification Name and Reference:
Device Product Code, Device Panel:
(a)(3). Predicate Device:
Wright Medical Technology, Inc. 5677 Airline Road Arlington, TN 38002
January 21, 2014
Val Myles Regulatory Affairs Specialist I Office - (901) 290-5162 Fax - (901) 867-4190
PRO-TOE® Hammertoe Fixation System
Smooth or threaded metallic bone fixation fastener
21 CFR 888.3040 - Class II
HWC- Orthopedic
K101165 – PRO-TOE™ VO Hammertoe Implant System
K120645 - PRO-TOE™ Hammertoe Implant System
K122959 - Trilliant Hammer Toe Implant
K132895 - WMT Implantable K-Wires
## (a)(4). Device Description
The PRO-TOE® Hammetoe Fixation System is composed of implants and instruments intended for use in the fixation or reconstruction of the lesser toes. The implants within the
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PRO-TOE® Hammertoe System have proximal & distal fixation features and will be offered in multiple sizes. The implants are manufactured from stainless steel or titanium.
This submission seeks to add previously cleared WMT Implantable K-Wires to the system for use with cannulated implants, for which clearance is also sought in this submission. The WMT Implantable K-wires are offered in surgical grade stainless steel. A range of diameters and lengths are offered from the manufacturer and planning should be conducted prior to implantation to determine the best fit.
## (a)(5). INTENDED USE
The PRO-TOE® Hammertoe Fixation Systems are indicated for the fixation of osteotomies and reconstruction of the lesser toes following correction procedures for hammertoe, claw toe, and mallet toe.
Cannulated Implants in the PRO-TOE® Hammertoe Fixation Systems can be used with K-wires for the delivery of implants or the temporary stabilization of outlying joints (e.g. MTP Joint).
The Implantable K-Wires are indicated for use in fixation of bone fractures, for bone reconstructions, and as guide pins for insertion of other implants. Additionally, Implantable K-Wires are indicated for the fixation of osteotomies and reconstruction of the lesser toe following correction procedures for hammertoe, claw toe, mallet toe, and metatarsophalangeal joint instability.
## (a)(6). Technological Characteristics Comparison
The PRO-TOE® Hammertoe Fixation System and the legally marketed predicate devices have similar indications, dimensions and geometry, and are identical in material. The purpose of this submission is to add PRO-TOE® VO Cannulated and PRO-TOE® C2 implants to the PRO-TOE® Hammertoe System. Indications have been updated to include the additional indication for temporary stabilization of outlying joints (e.g. MTP joint), identical to that of the previously cleared WMT Implantable K-Wire.
## (b)(1). Substantial Equivalence - Non-Clinical Evidence
Mathematical mechanical analysis related to static bend testing has shown that the subject implants do not present a new worst case.
## (b)(2). Substantial Equivalence - Clinical Evidence
N/A
## (b)(3). Substantial Equivalence - Conclusions
The design characteristics of the subject devices do not raise any new types of questions of safety or effectiveness. From the evidence submitted in this 510(k), the subject devices can be expected to perform at least as well as the predicate systems and are substantially equivalent.
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DEPARTMENT OF HEALTH & HUMAN SERVICES
Image /page/2/Picture/1 description: The image shows the logo for the U.S. Department of Health & Human Services. The logo consists of a stylized eagle with three tail feathers, representing the department's mission to protect the health of all Americans and provide essential human services. The words "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" are arranged in a circular fashion around the eagle.
Public Health Service
Food and Drug Administration 10903 New Hampshire Avenue Document Control Center - WO66-G609 Silver Spring, MD 20993-0002
March 7, 2014
Wright Medical Technology, Inc. Ms. Val Myles Regulatory Affairs Specialist I 5677 Airline Road Arlington, Tennessee 38002
Re: K140148
Trade/Device Name: PRO-TOE® Hammertoe Fixation System Regulation Number: 21 CFR 888.3040 Regulation Name: Smooth or threaded metallic bone fixation fastener Regulatory Class: Class II Product Code: HWC Dated: January 9, 2014 Received: January 22, 2014
Dear Ms. Myles:
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. 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 that I Dr has interes and regulations administered by other Federal agencies. You must or any I odotal 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 803); good manufacturing practice requirements as set
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### Page 2 - Ms. Val Myles
forth in the quality systems (QS) regulation (21 CFR Part 820); and if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR 1000-1050.
If you desire specific advice for your device on our labeling regulation (21 CFR Part 801), please contact the Division of Small Manufacturers, International and Consumer Assistance at its tollfree number (800) 638-2041 or (301) 796-7100 or at its Internet address
http://www.fda.gov/MedicalDevices/ResourcesforYou/Industry/default.htm. Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21CFR Part 807.97). For questions regarding the reporting of adverse events under the MDR regulation (21 CFR Part 803), please go to
http://www.fda.gov/MedicalDevices/Safety/ReportalProblem/default.htm for the CDRH's Office of Surveillance and Biometrics/Division of Postmarket Surveillance.
You may obtain other general information on your responsibilities under the Act from the Division of Small Manufacturers, International and Consumer Assistance at its toll-free number (800) 638-2041 or (301) 796-7100 or at its Internet address http://www.fda.gov/MedicalDevices/Resourcesfor You/Industry/default.htm.
Sincerely yours,
## Vincent 脚
for
Mark N. Melkerson Director Division of Orthopedic Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
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#### PRO-TOE® Hammertoe System
### Traditional 510(k)
## DEPARTMENT OF HEALTH AND HUMAN SERVICES Food and Drug Administration
## Indications for Use
510(k) Number (if known)
K140148
Device Name
PRO-TOE® Hammertoe Fixation System
### Indications for Use (Describe)
The PRO-TOE® Hammenoc Fixation Systems are indicated for the fixation of ostconstruction of the lesser toes following correction procedures for hammertoe, claw toe, and mallet toe.
Cannulated Implants in the PRO-TOE® Hammerton Fixation Systems can be used with K-wires for the delivery of implants of the temporary stabilization of outlying joints (c.g. MTP Joint).
The Implantable K-Wires are indicated for use in fixation of bone reconstructions, and as guide pins for inscrion of other implants. Additionally, Implantable K-Wires are indicated for the fixation of osteonomics and reconstruction of the lesser toc following correction procedures for hammerloe, claw toe, mallet toe, and metatarsophalangeal joint instability.
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)
## PLEASE DO NOT WRITE BELOW THIS LINE - CONTINUE ON A SEPARATE PAGE IF NEEDED.
FOR FDA USE ONLY Concurrence of Center for Devices and Radiological Health (CDRH) (Signature)
# Elizabeth L际rank -S
Division of Orthopedic Devices
FORM FDA 3881 (1/14)
Form Approved: OMB No. 0910-0120 Expiration Date: January 31, 2017 See PRA Statement on last page.
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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.
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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.
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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.