For wrist arthrodesis and for fractures of other small long bones such as the clavicle and olecranon. Specific indications include post-traumatic arthritis of the joints of the wrist; rheumatoid wrist deformities requiring restoration; complex carpal instability, post-septic arthritis of the wrist; severe unremitting wrist pain related to motion; brachial plexus nerve palsies; turnor resection; and spastic deformities. Single use device for cementless use only.
Device Story
Anatomically contoured bone fixation plate; used for wrist arthrodesis and small long bone fractures (clavicle, olecranon). Device features single row of screw holes; utilizes locking screws and press-fit intramedullary fixation for proximal stem. Operated by orthopedic surgeons in clinical/surgical settings. Provides rigid fixation to stabilize bone segments; facilitates fusion or fracture healing. Benefits patient through restoration of joint stability and pain relief.
Clinical Evidence
Bench testing only; no clinical data provided.
Technological Characteristics
Anatomically contoured plates; titanium (ASTM F-136) or stainless steel (ASTM F-138 or ASTM F-2229). Features 2.4mm, 2.7mm, and 3.2mm screw holes; 2.4mm locking screws (6mm-14mm). Includes press-fit intramedullary fixation. Single use; cementless.
Indications for Use
Indicated for patients requiring wrist arthrodesis or treatment of fractures of small long bones (clavicle, olecranon) due to post-traumatic arthritis, rheumatoid deformities, complex carpal instability, post-septic arthritis, severe motion-related wrist pain, brachial plexus nerve palsies, tumor resection, or spastic deformities. For single, cementless use.
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.
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K052754
OCT オデ 視聴
Image /page/0/Picture/2 description: The image shows the logo for DVO Extremity Solutions. The letters "DVO" are in large, bold, white font against a black background. Below the letters, the words "Extremity Solutions" are written in a smaller, bold, black font.
,
Solutions 720 E. Winona Ave., Warsaw, IN 46580 877-777-9DVO
## 510(k) Summary of Safety and Effectiveness
| SUMMARY PREPARED: | September 28, 2005 |
|----------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| 510(k) SPONSOR/APPLICANT: | DVO Extremity Solutions, LLC<br>720 E. Winona Ave., Warsaw, IN 46580 |
| 510(k) PREPARER and<br>CONTACT PERSON: | Dina L. Weissman, J.D.<br>P.O. Box 205, Derby CT 06418<br>Telephone: (203) 287-0485, Email: DLWeissman@aol.com |
| TRADE NAME: | Wrist Fusion Plate |
| COMMON NAME: | Plate, Fixation, Bone |
| CLASSIFICATION: | Class II per 21 CFR § 888.3030 Single/multiple component<br>metallic bone fixation appliances and accessories. |
| DEVICE PRODUCT CODE: | 87 LXT |
| PREDICATE DEVICES: | Synthes, Wrist Fusion Plates, K000558, cleared 14 April 2000 |
| DEVICE DESCRIPTION: | These anatomically contoured plates are offered in two lengths<br>(standard or short), manufactured from either titanium (ASTM<br>F-136) or stainless steel (ASTM F-138 or ASTM F-2229). |
| | The plate contains a single row of screw holes (2.4mm, 2.7mm<br>and 3.2mm in diameter) down its length. The locking screws are<br>2.4mm in diameter and vary in length from 6mm to 14mm. The<br>2.7mm and 3.2mm screws were previously cleared. |
| | In addition to the screws, the device utilizes a press fit<br>intramedullary fixation for the proximal stem. |
| INTENDED USE: | For wrist arthrodesis and for fractures of other small long bones<br>such as the clavicle and olecranon. Specific indications include<br>post-traumatic arthritis of the joints of the wrist; rheumatoid<br>wrist deformities requiring restoration; complex carpal<br>instability, post-septic arthritis of the wrist; severe unremitting<br>wrist pain related to motion; brachial plexus nerve palsies;<br>turnor resection; and spastic deformities. Single use device for<br>cementless use only. |
| COMPARISON TO PREDICATES: | The Wrist Fusion Plate is similar to the listed predicate device in<br>intended use, performance characteristics, materials of<br>construction, manufacturing methods and design.<br>Biomechanical comparisons confirm similar mechanical<br>properties. |
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Image /page/1/Picture/1 description: The image shows the logo for the U.S. Department of Health and Human Services. The logo features a stylized caduceus symbol, which is a staff with two snakes entwined around it. The caduceus is positioned to the right of the text, which reads "DEPARTMENT OF HEALTH AND HUMAN SERVICES, USA" in a circular arrangement around the symbol. The logo is simple and monochromatic.
Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850
DVO Extremity Solutions, LLC c/o Dina L. Weissman, J.D. P.O. Box 205 Derby, Connecticut 06418
OCT 2 7 2005
Re: K052754 Trade/Device Name: Wrist Fusion Plate Regulation Number: 21 CFR 888.3030 Regulation Name: Single/multiple component metallic bone fixation appliances and accessories Regulatory Class: II Product Code: LXT Dated: September 28, 2005 Received: September 30, 2005
Dear Ms. Weissman:
We have reviewed your Section 510(k) premarket notification of intent to market the device we nave reviewed 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 for tase stated in the energent date of the enactment date of the Medical Device Amendments, or 10 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). and cosmetic Fee , roo, warket the device, subject to the general controls provisions of the Act. The r ou may, atterest provisions of the Act include requirements for annual registration, listing of devices, good manufacturing practice, labeling, and prohibitions against misbranding and adulteration.
If your device is classified (see above) into either class II (Special Controls) or class III (PMA), it n your de roo such additional controls. Existing major regulations affecting your device can be found in the Codc 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 cquivalence 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 CHR Part 807); labeling (21 CFR Part 801); good manufacturing practice requirements as set 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.
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Page 2 - Dina L. Weissman, J.D.
This letter will allow you to begin marketing your device as described in your Section 510(k) This letter will and will and of substantial equivalence of your device to a legally marketed predicate device results in a classification for your device and thus, permits your device to proceed to the market.
If you desire specific advice for your device on our labeling regulation (21 CFR Part 801), please If you desire specific acrively of Compliance at (240) 276-0120. Also, please note the regulation entitled, Comace the Ories of Cremarket notification" (21CFR Part 807.97). You may obtain other general information on your responsibilities under the Act from the Division of Small other general informational and Consumer Assistance at its toll-free number (800) 638-2041 or (301) 443-6597 or at its Internet address http://www.fda.gov/cdrh/industry/support/index.html
Sincerely yours,
Signature
رسم Mark N. Melkerson Acting Director Division of General, Restorative and Neurological Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
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## Indications for Use
KOSZ754 510(k) Number (if known): ___
Device Name: Wrist Fusion Plate
Indications for Use:
For wrist arthrodesis and for fractures of other small long bones such as the clavicle and olecranon Specific indications include post-traumatic arthritis of the joints of the wrist, chevroatoid wrist deformities requiring restoration; complex carpal instability; post-septic arthritis of the wrist; severe unremitting wrist pain related to motion; brachial plexus nerve palsies; tumor resection; and spastic deformities.
This single use device is for cementless use only.
Prescription Use XXXXX (Part 21 CFR 801 Subpart D)
AND/OR
Over-The-Counter Use (21 CFR 801 Subpart C)
(PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE OF NEEDED)
Concurrence of CDRH, Office of Device Evaluation (ODE)
(Division Sign-Off) Division of General, Restorative, and Neurological Devices
Page 1 of 1
510(k) Number Foss 354
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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.