HEADLOC CERAMIC HEAD by ORTHO DEVELOPMENT CORP.

The Headloc™ Ceramic Femoral Head for the Primaloc™ Cemented Hip System is intended for single-use cemented implantation during primaryrevision surgery. The ceramic head allows for primary articulation between the acetabular cup and femoral stem to restore patient mobility. Indications for use are:

Osteoarthritis, rheumatoid arthritis, or other osteoarthroses;
Certain femoral neck fractures or dislocations;
Post-traumatic arthritis;
Idiopathic avascular necrosis of the femoral head;
Benign or malignant bone tumors where sufficient bone stock exists to seat the prosthesis;
Previous failed surgery;
Total hip replacement where the surgeon indicates a ceramic head

The Headloc™ Ceramic Head may be used with the Primaloc™ Cemeted Hip System which is cleared for use under Premarket Notification K962448.

Device Description

Headloc™ Zirconia Ceramic Heads

AI/ML Overview

I am sorry, but the provided text does not contain information regarding acceptance criteria, device performance results, study details (sample sizes, provenance, expert qualifications, adjudication methods, MRMC studies, standalone performance), or ground truth establishment relevant to an AI/ML device.

The document is a 1997 FDA 510(k) clearance letter for a medical device called "Headloc™ Zirconia Ceramic Heads" and outlines its intended use and regulatory classification. It does not describe any studies comparing its performance against specific acceptance criteria in the context of AI/ML or diagnostic accuracy.

Summary

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Image /page/0/Picture/1 description: The image is a circular seal for the Department of Health & Human Services USA. The seal features the department's name encircling an emblem. The emblem is a stylized image of an eagle.

Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850

Ms. Carol J. Freasier Regulatory Affairs/Quality Assurance Specialist Ortho Development Corporation 106 West Business Park Drive Draper, Utah 84020

K971426 Re : Headloc™ Zirconia Ceramic Heads Regulatory Class: II JUL - 9 1997 Product Code: LZO Dated: April 16, 1997 Received: April 18, 1997

Dear Ms. Freasier:

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 and the following limitation that the package insert must reflect that the zirconia Headlor™ Ceramic Femoral Heads are to be used only with CoCrMo or Ti6Al4V alloy hip stems with the CeramTec 2°52'30" Morse taper trunnions.

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.

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Page 2 - Ms. Carol J. Freasier

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 Regulations, 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 Requlations.

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 the regulation entitled, "Misbranding by reference to premarket notification" (21 CFR 807.97). Other general information on your responsibilities under the Act may be

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obtained from the Division of Small Manufacturers Assistance at its toll-free number (800) 638-2041 or (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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Ortho Development Corporation Premarket Notification for Headloc™ Ceramic Femoral Heads 510(k) Number (if known): K97 1435

Device Name: Headloc™Ceramic Femoral Head

Indications for Use

Osteoarthritis, rheumatoid arthritis, or other osteoarthroses;
Certain femoral neck fractures or dislocations;
Post-traumatic arthritis;
Idiopathic avascular necrosis of the femoral head;
Benign or malignant bone tumors where sufficient bone stock exists to seat the prosthesis;
Previous failed surgery;
Total hip replacement where the surgeon indicates a ceramic head

The Headloc™ Ceramic Head may be used with the Primaloc™ Cemeted Hip System which is cleared for use under Premarket Notification K962448.

(PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE IF NEEDED)

Concurrence of CDRH, Office of Device Evaluation (ODE)

(Division Sign-Off)
Division of General Restorative Devices
510(k) Number	K971426

Prescription Use	X
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Over-The-Counter Use
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(Optional Format 1-2-96)

Regulation Number and Section

N/A