All Exactech Hip Systems are indicated for use in skeletally mature individuals undergoing primary surgery for hip replacement due to osteoarthritis, rheumatoid arthritis, osteonecrosis, post-traumatic degenerative problems of the hip, and for treatment of proximal femoral fractures where prosthetic replacement is determined by the surgeon as the preferred treatment. Components of Exactech Hip Systems are also potentially indicated for ankylosing spondylitis, congenital hip dysplasia, revision of failed previous reconstructions where sufficient bone stock is present, and to restore mobility resulting from previous fusion. Cemented femoral stems and cemented acetabular cups are intended for cemented fixation only. Press-fit femoral stems and acetabular cups are intended for press-fit fixation. Press-fit components without hydroxyapatite (HA) coating may also be used with bone cement at the discretion of the surgeon. Femoral heads and endoprostheses are intended for use in cemented and press-fit applications.
Device Story
Exactech BIOLOX Delta and BIOLOX Option femoral heads and adapters are orthopedic implants for hip arthroplasty. BIOLOX Delta heads are alumina/zirconia ceramic; BIOLOX Option adapters are titanium alloy. Devices mate with 12/14 femoral stems and acetabular liners to replace the femoral head in primary or revision hip surgery. Used in clinical settings by orthopedic surgeons. Implants provide a bearing surface for hip joint articulation; intended to restore joint function and mobility. Substantial equivalence established via engineering performance testing compared to predicate alumina heads.
Clinical Evidence
No clinical data provided. Substantial equivalence is supported by bench testing only, including burst strength, fatigue strength, post-fatigue strength, pull-off force, and torque testing conducted in accordance with ISO 7206-10 and FDA guidance for ceramic ball hip systems.
Technological Characteristics
Femoral heads: Alumina/zirconia ceramic (ISO 6474-2). Adapters: Titanium alloy (ISO 5832-3). Design: 12/14 taper bore geometry compatible with existing femoral stems. Offsets: -3.5mm, 0mm, +3.5mm, +7mm. Sterilization: Same as predicate.
Indications for Use
Indicated for skeletally mature individuals undergoing primary or revision hip replacement surgery due to osteoarthritis, rheumatoid arthritis, osteonecrosis, post-traumatic degenerative hip conditions, proximal femoral fractures, ankylosing spondylitis, congenital hip dysplasia, or to restore mobility after previous fusion.
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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K.10301d *"1/3
### BIOLOX® Delta and BIOLOX® Option Femoral Heads Special 510(k) - 510(k) Summary of Safety and Effectiveness
| Company: | Exactech, Inc.<br>2320 N.W. 66th Court<br>Gainesville, FL 32653 |
|-----------------|-----------------------------------------------------------------|
| | Phone: (352) 377-1140<br>Fax: (352) 378-2617 |
| Contact Person: | Lindy Knisely |
Date: November 10, 2010
#### II. Proprietary Name:
I.
Exactech BIOLOX®Delta Femoral Heads and BIOLOX® Option Femoral Heads and Adapters
## Common Name: Femoral Head
### Classification Name:
- Prosthesis, Hip, Semi-Constrained, Metal/Ceramic/Polymer, Cemented or Non-● Porous, Uncemented
### Legally Marketed Devices to Which Substantial Equivalence Is Claimed: III.
| 510(k) Number | Trade of Proprietary Model Name | Manufacturer |
|---------------|-------------------------------------------|---------------|
| K032964 | Exactech 12/14 Alumina Femoral Heads | Exactech, Inc |
| K051682 | Exactech 12/14 Alumina Femoral Heads 36mm | Exactech, Inc |
#### IV. Indications for Use:
All Exactech Hip Systems are indicated for use in skeletally mature individuals undergoing primary surgery for hip replacement due to osteoarthritis, rheumatoid arthritis, osteonecrosis, post-traumatic degenerative problems of the hip, and for treatment of proximal femoral fractures where prosthetic replacement is determined by the surgeon as the preferred treatment. Components of Exactech Hip Systems are also potentially indicated for ankylosing spondylitis, congenital hip dysplasia, revision of failed previous reconstructions where sufficient bone stock is present, and to restore mobility resulting from previous fusion.
- Cemented femoral stems and cemented acetabular cups are intended for cemented . fixation only.
- Press-fit femoral stems and acetabular cups are intended for press-fit fixation. Press-. fit components without hydroxyapatite (HA) coating may also be used with bone cement at the discretion of the surgeon.
NOV 1 0 2010
{1}------------------------------------------------
K10301d #2/3
## BIOLOX® Delta and BIOLOX® Option Femoral Heads Special 510(k) - 510(k) Summary of Safety and Effectiveness
- Femoral heads and endoprostheses are intended for use in cemented and press-fit . applications.
### V. Device Description
The proposed Exactech BIOLOXdelta femoral heads and Biolox Option femoral heads and adapters are modifications to the existing Exactech 12/14 Alumina heads previously cleared in K032964 and K051682. The proposed femoral heads and adapters have the same general design features as the predicate device. The proposed femoral heads are manufactured from an alumina/zirconia based ceramic material known as Delta per ISO 6474-2. The Biolox Option adapters are comprised of titanium alloy per ISO 5832-3 and are intended for use with the Biolox Option femoral heads for primary and revision applications in which the taper remains intact.
The proposed femoral heads mate with the following devices:
- . 12/14 Femoral Stems
- 0 Novation Press-Fit Femoral Stems (K042842)
- Novation Splined RDD Femoral Stem (K063279) o
- o Novation Element Press-Fit Femoral Stem (K080980)
- Novation Cemented Stems (K052787) O
- Novation Cemented Plus (K083392) O
- AcuMatch Press Fit Stems (K041906, K051335) 0
- AcuMatch Cemented Stems (K052787) ಂ
- AcuMatch M-Series (K032964, K051858) O
- Acetabular Liners .
- Novation Crown Cup Standard and GXL UHMWPE Liners (K070479, K100269) o
- Novation Crown Cup Constrained Liners (K071676) o
- AcuMatch A-Series Standard and GXL UHMWPE Liners (K993082, K000242, o K040613, K051556)
- AcuMatch Constrained Liners (K040601) o
The predicate and proposed devices have the same intended use and basic fundamental scientific technology and share the following similarities:
- . similar indications for use
- similar design features .
- . incorporate similar materials
- . the same shelf life
- are packaged and sterilized using the same materials and processes
### Summary of Non-Clinical Performance Data VI.
The following engineering evaluations were conducted to demonstrate substantial equivalence of the proposed devices to the predicate devices:
{2}------------------------------------------------
K10301d*#3)3
# BIOLOX® Delta and BIOLOX® Option Femoral Heads Special 510(k) - 510(k) Summary of Safety and Effectiveness
- . Burst strength (ISO-7206-10)
- . Fatigue strength (ISO-7206-10)
- Post fatigue strength(ISO-7206-10) .
- Pull off force and Torque (Ceramtec specifications and FDA Guidance Document . for the Preparation of Premarket Notifications for Ceramic Ball Hip Systems)
### VII. Substantial Equivalence Conclusion:
| Device Comparison | Predicate | Proposed |
|------------------------------|------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------|
| Femoral Head | 12/14 Alumina Femoral<br>Heads | Bioloxdelta Femoral Heads<br>Biolox Option Femoral Heads<br>and Adapters |
| Manufacturer | Exactech, Inc | |
| Intended Use | Primary Hip Arthroplasty | Bioloxdelta: Primary Hip<br>Athroplasty<br>Biolox Option: Primary or<br>Revision Hip Arthroplasty |
| Indications for Use | Similar indications for use | |
| Stem Compatibility | 12/14 Ti-6Al-4V or CoCr Tapers with geometry to accept<br>ceramic head | |
| Material Composition | Conforms to recognized industry standards and requirements | |
| Taper Bore Geometry | Similar geometry to be compatible with 12/14 trunnions | |
| Head OD Sizes | Same OD size range | |
| Head Offset Sizes | -3.5mm, +0mm, +3.5mm | -3.5mm, +0mm, +3.5mm,<br>+7mm |
| Sterile Barrier<br>Packaging | Same packaging materials | |
| Sterilization | Same sterilization method | |
Results of engineering analyses referenced in this 510(k) submission demonstrate that the proposed Bioloxdelta femoral heads and Biolox Option femoral heads and adapters are substantially equivalent to the cleared predicate devices.
{3}------------------------------------------------
Image /page/3/Picture/1 description: The image shows the logo for the U.S. Department of Health and Human Services. The logo features a stylized depiction of an eagle or bird-like figure with three curved lines representing its body and wings. The logo is encircled by the text "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" arranged in a circular fashion around the bird symbol.
Food and Drug Administration 10903 New Hampshire Avenue Document Control Room -WO66-G609 Silver Spring. MD 20993-0002
Exactech, Inc. % Ms. Lindy Knisely, R.N. Regulatory Affairs Specialist 2320 Northwest 66th Court Gainesville, Florida 32653
NOV 1 0 2010
Re: K103012 Trade/Device Name: BIOLOX® Delta Femoral Heads and BIOLOX® Option Femoral Heads and Adapters Regulation Number: 21 CFR 888.3353 Regulation Name: Hip joint metal/ceramic/polymer semi-constrained cemented or nonporous uncemented prosthesis Regulatory Class: Class II Product Code: LZO Dated: October 8, 2010 Received: October 12, 2010
Dear Ms. Knisely:
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.
{4}------------------------------------------------
Page 2 - Ms. Lindy Knisely
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); medical device reporting (reporting of medical device-related adverse events) (21 CFR 803); 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.
If you desire specific advice for your device on our labeling regulation (21 CFR Part 801), please go to http://www.fda.gov/AboutFDA/CentersOffices/CDRH/CDRHOffices/ucm115809.htm for the Center for Devices and Radiological Health's (CDRH's) Office of Compliance. 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/ReportaProblem/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,
Mark N. Melkerson
Mark N. Melkerson Director Division of Surgical, Orthopedic and Restorative Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
{5}------------------------------------------------
# BIOLOX® Delta and BIOLOX® Option Femoral Heads Special 510(k) - Indications for Use
KIDSOLA 510(k) Number:
NOV 1 0 2010
Device Name: BIOLOX® Delta Femoral Heads and BIOLOX® Option Femoral Heads and Adapters
### Indications:
All Exactech Hip Systems are indicated for use in skeletally mature individuals undergoing primary surgery for hip replacement due to osteoarthritis, rheumatoid arthritis, osteonecrosis, post-traumatic degenerative problems of the hip, and for treatment of proximal femoral fractures where prosthetic replacement is determined by the surgeon as the preferred treatment. Components of Exactech Hip Systems are also potentially indicated for ankylosing spondylitis, congenital hip dysplasia, revision of failed previous reconstructions where sufficient bone stock is present, and to restore mobility resulting from previous fusion.
- . Cemented femoral stems and cemented acetabular cups are intended for cemented fixation only.
- t Press-fit femoral stems and acetabular cups are intended for press-fit fixation. Press-fit components without hydroxyapatite (HA) coating may also be used with bone cement at the discretion of the surgeon
- . Femoral heads and endoprostheses are intended for use in cemented and press-fit applications.
| Prescription Use _X | and/or | Over-The-Counter Use_ |
|-----------------------------|--------|------------------------|
| (Part 21 CFR 801 Subpart D) | | (21 CFR 807 Subpart C) |
Please do not write below this line - use another page if needed.
Concurrence of CDRH, Office of Device Evaluation (ODE)
Janeta de der mxm
Division of Surgical and Restorative Devices
510(k) Number K103012
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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.