Prosthetic replacement of the femoral head associated with a hip prosthesis having a taper compatible with the head taper, and with a prosthetic acetabulum having an inside diameter compatible with that of the head. The alumina head can only be used with polyethylene inserts. This prothesis may be used for degenerative joint disease such as osteoarthritis and avascular necrosis, correction of functional deformity, rheumatoid arthritis, revision procedure where other devices or treatments have failed, congenital dislocation, femoral neck fractures, traumatic arthritis, fused hip, diastrophic variant, slipped capital femoral epiphysis, non-union.
Device Story
Alumina femoral heads serve as prosthetic replacements for the femoral head in hip arthroplasty. Fabricated from Biolox forte alumina, these heads feature a 12/14 cone taper and are available in 28mm and 32mm diameters with varying offsets (-3.5, 0, +3.5). The device is intended for use by orthopedic surgeons in clinical settings during hip replacement or revision surgeries. The head articulates with a compatible prosthetic acetabulum containing a polyethylene insert. By providing a durable, biocompatible bearing surface, the device restores hip joint function and mobility for patients suffering from degenerative or traumatic joint conditions.
Clinical Evidence
Bench testing only. No clinical data provided. Testing included fatigue testing and static compression testing to rupture, as well as static compression testing at 2000 N and measurement of head extraction force. All results met FDA requirements.
Technological Characteristics
Material: Biolox forte alumina (ASTM F 6474). Geometry: 12/14 cone taper, 28mm and 32mm diameters, offsets of -3.5, 0, +3.5. Energy source: None (mechanical). Connectivity: None. Sterilization: Not specified.
Indications for Use
Indicated for patients requiring prosthetic femoral head replacement due to degenerative joint disease (osteoarthritis, avascular necrosis), rheumatoid arthritis, congenital dislocation, femoral neck fractures, traumatic arthritis, fused hip, diastrophic variant, slipped capital femoral epiphysis, non-union, or revision procedures where prior treatments failed. For use with compatible hip prosthesis tapers and acetabular components with polyethylene inserts.
Regulatory Classification
Identification
A hip joint metal/ceramic/polymer semi-constrained cemented or nonporous uncemented prosthesis is a device intended to be implanted to replace a hip joint. This device limits translation and rotation in one or more planes via the geometry of its articulating surfaces. It has no linkage across-the-joint. The two-part femoral component consists of a femoral stem made of alloys to be fixed in the intramedullary canal of the femur by impaction with or without use of bone cement. The proximal end of the femoral stem is tapered with a surface that ensures positive locking with the spherical ceramic (aluminium oxide, A12 03 ) head of the femoral component. The acetabular component is made of ultra-high molecular weight polyethylene or ultra-high molecular weight polyethylene reinforced with nonporous metal alloys, and used with or without bone cement.
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Image /page/0/Picture/0 description: The image shows a logo with the letters 'FH' in a bold, sans-serif font stacked on top of each other. Below the letters, there are two lines of text that read 'FOURNITURES' and 'HOSPITALIERES'. There is a thin horizontal line separating the letters from the text. The logo appears to be for a company that provides hospital supplies.
NOV 1 7 2004
K042035 (pg 1 of 2)
S. rue Nobel ZI. DE KERNEVEZ 29000 QUIMPER FRANCE Tél : 02 98 55 68 95 Fax : 02 98 53 42 13
# 510 (K) SUMMARY OF SAFETY AND EFFECTIVENESS ALUMINA HEADS
### SPONSOR IDENTIFICATION:
Fournitures Hospitalières Industrie 6 Rue Nobel, Z.I. de Kernevez 29000 QUIMPER - FRANCE Tel: (33) 2.98.55.68.95 Fax: (33) 2.98.53.42.13
#### ESTABLISHMENT REGISTRATION NUMBER: 3003898228
OFFICIAL CONTACT PERSON: Christine QUENDEZ Regulatory Affairs Manager E-mail: fhi.rd@wanadoo.fr
DATE PREPARED:
JULY 10th, 2004
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DEVICE TRADE NAME: DEVICE COMMON NAME: CLASSIFICATION NAME:
ALUMINA HEADS
Ceramic Femoral Head
Hip joint metal/ceramic/polymer semi-constrained cemented or nonporous uncemented prosthesis
Image /page/0/Picture/15 description: The image shows a logo with the letters 'G' and 'MED' stacked on top of each other. The 'G' is larger and bolder than 'MED'. Below the logo, the text 'EN 46001' is displayed. The logo appears to be a certification mark or symbol related to medical devices or quality management systems.
Class II REGULATORY CLASS: DEVICE PRODUCT CODE: 87 LZO PANEL CODE: 21 CFR 888.3353
## DEVICE DESCRIPTION:
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Alumina heads are made of Biolox forte alumina (trademark of CERAMTEC) according to ASTM F 6474 standard.
Alumina heads have a 12/14 cone and are available in two diameters: 28mm and 32mm, with three offsets: -3.5; 0; +3.5.
## INDICATIONS FOR USE:
Prosthetic replacement of the femoral head associated with a hip prosthesis having a taper compatible with the head taper, and with a prosthetic acetabulum having an inside diameter compatible with that of the head.
S A S.AU CAPTAL DE 9 4 694, 0 € - Baques CRCA Quinper - R.C Quinper - R.C Quinper - R.C Quinper / S.B.R - SRET 303 S.O. 15 (1)trajonmprovation FR 7 00 33.9 250
{1}------------------------------------------------
$$
\begin{pmatrix}
\pi_1 \circ \pi_2 & \mathcal{O} \\
\pi_1 \circ \pi_2 & \mathcal{O}
\end{pmatrix}
\cong \mathcal{S} \circ \mathcal{O} \mathcal{L} \mathcal{O}
\mathcal{N}
$$
### PREDICATE DEVICES:
PREDICATE DEVICES:
Numerous alumina heads made of Biolox forte have been cleared three predicate devices based Numerous alumina neads made of Diolox Introl have selected three predicate devices based
by the Food and Drug Administration (FDA). We have second secures by the Food and Drug Administration (1 ce manufacturing and design features.
These predicate devices are:
- esc predicate de vices are:
Apex Modular Alumina Femoral Head (K012918), Apex Surgical -
- Apex Modular Alumina Femoral Head (1167877777777777777787777787), Smith & Nephew -
- Diolox Authma Coramic Head Prosthesis (K990261), Plus Orthopedics -
# COMPARISON OF TECHNOLOGICAL CHARACTERISTICS:
COMPARISON OF TECHNODOOTCAD Crand substantial similar indications for use as the Our alumina neads nave the same mended as and of the same material (Biolox forte), are available in similar diameters and lengths, with similar designs.
similar diameters and lengths, whill shinks accepts.
Performance tests were performed. Our proposed devices and the predicate devices were found to have results in compliance with the selected standard.
# MATERIAL CHARACTERISTICS:
We have followed the FDA's guideline: "Guidance document for the preparation of prematerial we have for ceramic ball hip systems" dated January 10, 1995 to compare it our material notifications for ceraint ban mp 35stems - attest remairements. Our alumina heads reach all the requirements set up in this guidance document.
#### PERFORMANCES:
PERFORMANCES:
To evaluate the safety and effectiveness of our Alumina heads, we have made two series of tests:
- Fatigue test and static compression test to rupture in the first series, and -
- Fallgue lest and static compression test at 2000 N and measurement of the head extraction a force in the second series.
All the results were in compliance with the requirements set forth by the FDA.
All the results were in comphance must the specified materials. Processing controls, quality NISK to nearth have bool addressed ation for a
### CONCLUSION:
CONCEON.
All these elements show the safety and effectiveness of our product. Our Alumina heads are All these elements show the selected predicate device in terms of intended use, material. safety and effectiveness.
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Image /page/2/Picture/1 description: The image shows the logo for the Department of Health & Human Services - USA. The logo is a circular seal with the words "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" written around the perimeter. Inside the circle is an image of an eagle with its wings spread.
Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850
NOV 17 2004
Ms. Christine Quendez Regulatory Affairs Manager Fournitures Hospitalieres Industries ZI de Kernevez 6 rue Nobel 29000 Quimper France
Received: November 1, 2004
Re: K042035
Trade/Device Name: Alumina heads Regulation Number: 21 CFR 888.3353 Regulation Name: Hip joint metal/polymer/metal semi-constrained porous-coated uncemented prosthesis. Regulatory Class: II Product Code: LZO Dated: November 1, 2004
Dear Quendez:
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.
If your device is classified (see above) into either class II (Special Controls) or class III (PMA), it may be subject to such 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 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 - Ms. Christine Quendez
This letter will allow you to begin marketing your device as described in your Section 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), please contact the Office of Compliance at (240) 276-0120. Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21CFR Part 807.97). 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) 443-6597 or at its Internet address http://www.fda.gov/cdrh/dsma/dsmamain.html
Sincerely yours,
L. Mark H. Milken
Celia M. Witten, Ph.D., M.D. 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
510(k) Number (if known):
Device Name:
Alumina Heads
Prosthetic replacement of the femoral head
associated with a hip prosthesis having a taper compatible with the head taper, and with a prosthetic acetabulum having an inside diameter
The alumina head can only be used with
This prothesis may be used for degenerative joint disease such as osteoarthritis and avascular necrosis, correction of functional deformity, rheumatoid arthritis, revision procedure where
congenital dislocation, femoral neck
trochanteric fractures, traumatic arthritis, fused
diastrophic variant, slipped
compatible with that of the head.
polvethylene inserts.
other devices or
epiphysis, non-union.
14042035
Indications for Use:
R. Mark A. Milkersen
Division Sign-Off
Division of General, Restorative, and Nearological Devices
**516(e) Number** K042035
X Prescription Use (Part 21 CFR 801 Subpart D) AND/OR
hip,
Over the counter Use (21 CFR 801 Subpart C)
treatments have failed,
and
capital
(PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE OF NEEDED)
Concurrence of CDRH, Office of Device Evaluation (ODE)
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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.