The Osteo Compression Hip Screw System is a proximal fracture fixation system, comprised of compression hip screw plates, lag screws, and a compression screw, which is intended to provide strong and stable internal fixation with minimal soft tissue irritation. It is a system which optimally engages the femoral head and permits impaction of bone fracture fragments. The Osteo I-C Humeral Nail System is intended for single use only. The Osteo Compression Hip Screw System is cleared for use via 510(k)s #K971654, #K971321 and #K920037 for the following indications: Intertrochanteric femoral fractures and intracapsular femoral neck fractures. The expanded indications for the Osteo Compression Hip Screw System include: extracapsular fractures of the proximal femur (basal neck fractures, trochanteric fractures, and subtrochanteric fractures).
Device Story
Proximal fracture fixation system; components include compression hip screw plates, lag screws, and compression screws; optional use of cortical bone screws. Device provides internal fixation for femoral fractures; engages femoral head; permits impaction of fracture fragments. Used by orthopedic surgeons in clinical/surgical settings. System aids healing; not a substitute for intact tissue. Design and materials identical to previously cleared versions (K971654, K971321, K920037).
Clinical Evidence
No clinical data provided. Substantial equivalence is based on design and material identity to previously cleared devices.
Technological Characteristics
Metallic bone fixation system consisting of compression hip screw plates, lag screws, and compression screws. Materials and design are identical to those cleared in K971654, K971321, and K920037. Mechanical fixation device; no energy source or software.
Indications for Use
Indicated for patients with proximal femoral fractures, including intracapsular femoral neck fractures, intertrochanteric fractures, and extracapsular fractures of the proximal femur (basal neck, trochanteric, and subtrochanteric fractures).
Regulatory Classification
Identification
Single/multiple component metallic bone fixation appliances and accessories are devices intended to be implanted consisting of one or more metallic components and their metallic fasteners. The devices contain a plate, a nail/plate combination, or a blade/plate combination that are made of alloys, such as cobalt-chromium-molybdenum, stainless steel, and titanium, that are intended to be held in position with fasteners, such as screws and nails, or bolts, nuts, and washers. These devices are used for fixation of fractures of the proximal or distal end of long bones, such as intracapsular, intertrochanteric, intercervical, supracondylar, or condylar fractures of the femur; for fusion of a joint; or for surgical procedures that involve cutting a bone. The devices may be implanted or attached through the skin so that a pulling force (traction) may be applied to the skeletal system.
Predicate Devices
Synthes DHS Dynamic Hip Screw System
Submission Summary (Full Text)
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SEP 2 2 1998
982553
Osteo Compression Hip Screw System - Expanded Indication
510(k) Premarket Notification
## 510(k) PREMARKET NOTIFICATION SUMMARY OF SAFETY AND EFFECTIVENESS OSTEO COMPRESSION HIP SCREW SYSTEM - EXPANDED INDICATION
### Submission Information
| Name and Address of the Sponsor of the 510(k) Submission: | Osteonics Corporation<br>59 Route 17<br>Allendale, NJ 07401-1677<br>201-825-4900 |
|-----------------------------------------------------------|----------------------------------------------------------------------------------|
| Contact Person: | Marybeth Naughton<br>Regulatory Affairs Team Member |
| Date Summary Prepared: | July 17, 1998 |
Device Identification
| Proprietary Name: | Osteo Compression Hip Screw System |
|------------------------------------|----------------------------------------------------------------------------------------------------|
| Common Name: | Compression Hip Screw Plate and Screw |
| Classification Name and Reference: | Single/Multiple Component Metallic Bone<br>Fixation Appliances and Accessories<br>21 CFR §888.3030 |
#### Predicate Device Identification
The expanded indication of the subject components of the Osteo Compression Hip Screw System, which is the subject of this premarket notification, are substantially equivalent to the indications of the components of the Synthes DHS® Dynamic Hip Screw System.
#### Device Description
The Osteo Compression Hip Screw System is a proximal fracture fixation system, comprised of compression hip screw plates, lag screws, and a compression screw, which is intended to provide strong and stable internal fixation with minimal soft tissue irritation. Osteo Cortical Bone Screws may be utilized with this system for additional compression and fixation. This system is utilized as an aid to healing, not as a substitute for normal intact tissues. The design and materials for the Osteo Compression Hip Screw System are determined to be substantially equivalent via 510(k)s #K971654, #K971321 and #K920037, and remain unchanged from these previous submissions.
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#### Intended Use
The Osteo Compression Hip Screw System is cleared for use via 510(k)s #K971654, #K971321 and #K920037 for the following indications: Intertrochanteric femoral fractures and intracapsular femoral neck fractures. The expanded indications for the Osteo Compression Hip Screw System include: extracapsular fractures of the proximal femur (basal neck fractures, trochanteric fractures, and subtrochanteric fractures).
## Statement of Technological Comparison
The subject Osteo Compression Hip Screw System components are substantially equivalent in intended use to the predicate devices offered by Synthes in their DHS® Dynamic Hip Screw System.
> (Divir ' Div ... . . . . 510(k) Number_
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Image /page/2/Picture/2 description: The image shows a logo for the Department of Health. The logo features a stylized human head in profile, with three wavy lines representing the hair and face. The words "DEPARTMENT OF HEALTH" are written vertically along the left side of the logo.
Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850
SEP 2 2 1998
Ms. Marybeth Naughton Regulatory Affairs Team Member Osteonics Corporation 59 Route 17 Allendale, New Jersey 07401-1677
Re : K982553 Trade Name: Osteo Compression Hip Screw System Regulatory Class: II Product Code: HRS, HWC Dated: July 21, 1998 Received: July 22, 1998
Dear Ms. Naughton:
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). F 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.
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 Devices: General regulation (21 CFR Part 820) and that, through periodic (QS) inspections, the Food and Drug Administration (FDA) will verify such assumptions. Failure to comply with the GMP regulation may result in regulatory action. In addition, FDA may publish further announcements 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.
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Page 2 - Ms. Marybeth Naughton
This letter will allow you to begin marketing your device as described in your 510(k) premarket notification. The FDA finding 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 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 the regulation entitled, "Misbranding by reference to
premarket notification" (21 CFR 807.97). Other general information on your responsibilities under the Act may be obtained from the Division of Small Manufacturers Assistance at its toll-free number (800) 638-2041 or at (301) 443-6597, or at its Internet address
"http://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): K971654, K971321, K920037
Device Name: Osteo Compression Hip Screw - Expanded Indication
### Indications For Use:
The Osteo Compression Hip Screw System is a proximal fracture fixation system, comprised of compression hip screw plates, lag screws, and a compression screw, which is intended to provide strong and stable internal fixation with minimal soft tissue irritation. It is a system which optimally engages the femoral head and permits impaction of bone fracture fragments. The Osteo I-C Humeral Nail System is intended for single use only.
## Indications:
>
Cleared via 510(k)s #K971654, #K971321, #K920037
- > Intracapsular fractures of the femoral neck
- ♪ Intertrochanteric fractures
Expanded Indication (the subject of this premarket notification)
- Extracapsular fractures of the proximal femur:
- ♪ basal neck fractures
- ♪ trochanteric fractures
- > subtrochanteric fractures
# (PLEASE DO NOT WRITE BFLOW THIS LINE-CONTINUE ON ANOTHER PAGE IF NEEDED
Concurrence of CDRH, Office of Device Evaluation (ODE)
| Prescription Use<br>(per 21 CFR 801.109( | <div style="text-align:center;">X</div> |
|------------------------------------------|-----------------------------------------|
| OR | |
| Over-The-Counter Use | |
| (Optional Format 1-2-96) | |
(Division Sign-Off)
Division of General Restorative Devices
| 510(k) Number | K982553 |
|---------------|---------|
|---------------|---------|
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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.
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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).
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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.
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Reading rule for every project: how many summaries do you read in full?
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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.
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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.
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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.
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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.