The Osteo 4.0mm Cannulated Screw System is indicated for the following: - Fractures of the olecranon, distal humerus . - Fractures of the ulna and radius . - . Patellar fractures - Distal tibia and pilon fractures . - Fractures of the tarsals and metatarsals ● - Tarso-metatarsal and metatarso-phalangeal arthrodeses . - Metatarsal and phalangeal osteotomies ● - Osteochrondritis dissecans . - Ligament fixation . - Fractures of the posterior wall of the acetabulum and other fractures of the pelvic ring . - Other small fragment, cancellous bone fractures .
Device Story
Osteo 4.0mm Cannulated Screw System consists of self-tapping cannulated screws and washers; used for bone fixation in orthopedic procedures. Device provides mechanical stabilization of bone fragments or ligaments. Operated by surgeons in clinical/OR settings. Output is physical fixation of bone/tissue. Benefits include stabilization of fractures and support for healing. System is purely mechanical; no electronic or software components.
Clinical Evidence
No clinical data. Bench testing only.
Technological Characteristics
Material: Titanium 6Al-4V ELI alloy. Design: Self-tapping cannulated screw (4.0mm thread diameter) and washer (7.0mm outer diameter, 4.0mm inner diameter). Mechanical fixation principle. Provided sterile and non-sterile.
Indications for Use
Indicated for patients requiring fixation of long and small bone fractures, osteochondritis dissecans, and ligament fixation. Specific applications include fractures of the olecranon, distal humerus, ulna, radius, patella, distal tibia, pilon, tarsals, metatarsals, and pelvic ring; also indicated for arthrodeses and osteotomies. Contraindicated for pedicular screw fixation/attachment to the cervical, thoracic, or lumbar vertebral column.
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.
Predicate Devices
Synthes 4.0mm Cannulated Screws in the Synthes 4.0mm Screw Set
ACE Medical 4.0mm Cannulated Screws in the ACE Titanium 3.5/4.0mm Small Fragment System
Richards 4.0mm Cannulated Screw
Submission Summary (Full Text)
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MAY 1 1 1998
# 510(k) PREMARKET NOTIFICATION SUMMARY OF SAFETY AND EFFECTIVENESS Osteo 4.0mm Cannulated Screw System
Submission Information
Name and Address of the Sponsor of the 510(k) Submission:
Contact Person:
Osteonics Corporation 59 Route 17 Allendale, NJ 07401-1677 201-825-4900
Kate Sutton Regulatory Affairs Specialist
Date Summary Prepared:
Device Identification
Proprietary Name:
Common Name:
Classification Name and Reference:
Osteo 4.0mm Cannulated Screw System
Cannulated Screws
March 27, 1998
Smooth or Threaded Metallic Bone Fixation Fastener 21 CFR 888.3040
### Predicate Device Identification
The subject components of the Osteo 4.0mm Cannulated Screw System are substantially equivalent to the components of the Synthes 4.0mm Cannulated Screws in the Synthes 4.0mm Screw Set, the ACE Medical 4.0mm Cannulated Screws in the ACE Titanium 3.5/4.0mm Small Fragment System, and the Richards 4.0mm Cannulated Screw.
### Device Description
The Osteo 4.0mm Cannulated Screw System consists of one self-tapping cannulated screw of various lengths, and one washer. All components of the system are provided both sterile and non-sterile. The screw and washer are manufactured from Titanium 6Al-4V ELI alloy. The screw thread diameter is 4.0mm. The washer has an outer diameter of 7.0mm and an inner diameter of 4.0mm.
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## Intended Use
The Osteo 4.0mm Cannulated Screw System is indicated for the following:
- Fractures of the olecranon, distal humerus .
- Fractures of the ulna and radius .
- . Patellar fractures
- Distal tibia and pilon fractures .
- Fractures of the tarsals and metatarsals ●
- Tarso-metatarsal and metatarso-phalangeal arthrodeses .
- Metatarsal and phalangeal osteotomies ●
- Osteochrondritis dissecans .
- Ligament fixation .
- Fractures of the posterior wall of the acetabulum and other fractures of the pelvic ring .
- Other small fragment, cancellous bone fractures .
# Statement of Technological Comparison
The subject Osteo 4.0mm Cannulated Screw System components are substantially equivalent in design and intended use to the predicate devices offered by Synthes, ACE Medical, and Richards.
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Image /page/2/Picture/12 description: The image shows the logo for the U.S. Department of Health & Human Services. The logo is a circular seal with the words "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" around the perimeter. Inside the circle is an abstract image of a stylized eagle or bird-like figure, composed of three curved lines that suggest the head, body, and tail feathers of the bird.
Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850
MAY 1 1 1998
Ms. Elizabeth A. Staub Director, Quality Assurance and Regulatory Affairs Osteonics Corporation 59 Route 17 07401-1677 Allendale, New Jersey
Re : K981259 Osteo 4.0mm Cannulated Screw System Regulatory Class: II Product Code: HWC Dated: April 2, 1998 Received: April 6, 1998
Dear Ms. Staub:
We have reviewed your Section 510(k) notification of intent to market the device referenced above and we have determined the device is substantially equivalent (for the indications for use stated in the enclosure) to 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). 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. Note that labeling or otherwise promoting a device for pedicular screw fixation/attachment would cause the device to be adulterated under 501(f)(1) of This device, if intended for use in pedicular screw the Act. fixation/attachment, would be found not substantially equivalent and would be a class III device under Section ---513 (f) of the Act. Class III devices are required to have an approved premarket approval (PMA) application prior to marketing. Accordingly:
- The package insert must prominently state that the device 1. is intended for the specific use(s) described in the enclosure only; and
- 2. You may not label or in any way promote this device for pedicular screw attachment to, or fixation of the cervical, thoracic or lumbar vertebral column. If this
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Page 2 - Ms. Elizabeth A. Staub
device is a screw with outer diameters of 3 mm - 10 mm and overall lengths of 10 mm - 75 mm inclusively, the package insert must include the following statement, This device is not approved for screw "WARNING: attachment or fixation to the posterior elements (pedicles) of the cervical, thoracic, or lumbar spine." Any pedicular screw fixation/attachment to the cervical, thoracic or lumbar vertebral column of this device is considered investigational and may only be investigated as a significant risk device in accordance with the investigational device exemption (IDE) regulations under 21 CFR, Part 812. All users of the device for pedicular screw fixation/attachment must receive approval from their respective institutional review boards (IRBs) and the Food and Drug Administration (FDA) prior to conduct of the investigation.
If your device is classified (see above) into either class II (Special Controls) or class III (Premarket Approval), it may be subject to such additional controls. Existing major. regulations affecting your device can be found in the Code of Federal Requlations, Title 21, Parts 800 to 895. A substantially equivalent determination assumes compliance with the current Good Manufacturing Practice requirement, as set forth in the Quality System Regulation (QS) for Medical General requlation (21 CFR Part 820) and that, Devices: through periodic (QS) inspections, the Food and Drug Administration (FDA) will verify such assumptions. Failure to comply with the GMP requlation may result in regulatory In addition, FDA may publish further announcements action. concerning your device in the Federal Register. Please note: this response to your premarket notification submission does not affect any obligation you might have under sections 531 through 542 of the Act for devices under the Electronic Product Radiation Control provisions, or other Federal Laws or Regulations.
This letter will allow you to begin marketing your device as described in your 510(k) premarket notification immediately. An FDA finding of substantial equivalence of your device to a legally marketed predicate device results in a classification for your device and permits your device to proceed to the market.
If you desire specific advice for your device on our labeling regulation (21 CFR Part 801 and additionally 809.10 for in vitro diagnostic devices), please contact the Office of Compliance at (301) 594-4659. Additionally, for questions on the promotion and advertising of your device, please contact the Office of Compliance at (301) 594-4639. Also, please note
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## Page 3 - Ms. Elizabeth A. Staub
the regulation entitled, "Misbranding by reference to enc regaracion" (21 CFR 807.97) . Other general premation on your responsibilities under the Act may be obtained from the Division of Small Manufacturers Assistance obtained from the bivibion of (800) 638-2041 or (301) 443-6597 or at at Its Coli Free namber (0:0)/www.fda.gov/cdrh/dsmamain.html".
Sincerely yours,
Celia M. Witten, Ph.D., M.D. Director Division of General and Restorative Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
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### 510(k) Number (if known): K98|259
### Device Name: Osteo 4.0mm Cannulated Screw System
### Indications For Use:
The indications for the use of these cannulated screws, in keeping with those of other legally marketed cannulated screws, are as follows.
The Osteo 4.0mm Cannulated Screw System is indicated for osteochrondritis dissecans, ligament fixation, and long and small bone fracture fixation, which may include the following:
- Fractures of the olecranon, distal humerus
- Fractures of the ulna and radius .
- Patellar fractures .
- Distal tibia and pilon fractures .
- Fractures of the tarsals and metatarsals .
- Tarso-metatarsal and metatarso-phalangeal arthrodeses .
- Metatarsal and phalangeal osteotomies .
- Fractures of the posterior wall of the acetabulum and other fractures of the pelvic ring
- Other small fragment, cancellous bone fractures
(PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE IF NEEDED)
Concurrence of CDRH, Office of Device Evaluation (ODE)
Prescription Use X
OR
Over-The-Counter Use
(Per 21 CFR 801:109)
(Optional Format 1-2-96)
toco Deyto
Sign-Off Division of General Restorative Devices 510(k) Number .
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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.
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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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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.
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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.