ASCENSION PYROCARBON LUNATE

K080997 · Ascension Orthopedics, Inc. · KWN · Jun 17, 2008 · Orthopedic

Device Facts

Record IDK080997
Device NameASCENSION PYROCARBON LUNATE
ApplicantAscension Orthopedics, Inc.
Product CodeKWN · Orthopedic
Decision DateJun 17, 2008
DecisionSESE
Submission TypeTraditional
Regulation21 CFR 888.3750
Device ClassClass 2
AttributesTherapeutic

Intended Use

The Ascension® PyroCarbon Lunate is intended for replacement of the lunate bone in the proximal carpal row of the wrist in the presence of: - Avascular necrosis (Kienboch's disease) . - Localized osteoarthritic changes - Long-Standing dislocations .

Device Story

Anatomically shaped lunate bone replacement; acts as articulating spacer to maintain carpal bone relationship and wrist mobility after excision. Features exaggerated articular concavity for capitate stability; includes two suture holes for fixation to scaphoid and triquetrium to facilitate capsuloligamentous system formation. Constructed of On-X® PyroCarbon layer on tungsten-impregnated graphite substrate for radiopacity. Available in 5 sizes for left/right applications. Used by orthopedic surgeons in clinical settings. Provides structural support and mobility restoration for patients with lunate bone pathology.

Clinical Evidence

Bench testing only; no clinical data provided. Strength and endurance testing performed to demonstrate device safety.

Technological Characteristics

Material: On-X® PyroCarbon layer on tungsten-impregnated graphite substrate. Radiopaque. 5 sizes. Sterile. Mechanical articulating spacer.

Indications for Use

Indicated for replacement of the lunate bone in the proximal carpal row of the wrist in patients with avascular necrosis (Kienbock's disease), localized osteoarthritic changes, or long-standing dislocations.

Regulatory Classification

Identification

A wrist joint carpal lunate prosthesis is a one-piece device made of silicone elastomer intended to be implanted to replace the carpal lunate bone of the wrist.

Predicate Devices

Related Devices

Submission Summary (Full Text)

{0}------------------------------------------------ 1 of of | 6 | 510(k) Summary | K080997 pg 1 | |-----------------|---------------------------------------------------------------------------------|--------------| | SUBMITTER NAME: | Ascension Orthopedics, Inc.<br>8700 Cameron Road, #100<br>Austin, TX 78754-3832 | | | 510(k) CONTACT: | Debbie Stearns | JUN 17 2008 | - 510(k) CONTACT: Debbie Stearns Phone: (512) 836-5001 x1548 Ascension® PyroCarbon Lunate TRADE NAME: Prosthesis, Wrist Carpal Lunate COMMON NAME: CLASSIFICATION: 21 CFR 888.3750 PRODUCT CODE: KWN - Orthopedic PANEL: # PREDICATE DEVICES: K864491 - Swanson Titanium Carpal Lunate Implant K061451 - Ascension PyroCarbon CMC ## DEVICE DESCRIPTION: The Ascension® PyroCarbon Lunate is an anatomically designed lunate replacement with essentially the same shape as the native lunate bone. The Lunate implant acts as an articulating spacer to maintain the relationship of adjacent carpal bones after excision and to maintain mobility of the wrist. The articular concavity that captures the capitate is more exaggerated to enhance stability. The Lunate implant has two suture holes that allow fixation of the implant to the adjacent scaphoid and triquetrium bones to provide temporary postoperative stability while a capsuloligamentous system forms around the implant. The Ascension Pyrocarbon Lunate is constructed of a high strength On-X® PyroCarbon layer deposited on a graphite substrate. The graphite is impregnated with tungsten making the Lunate implant radiopaque. The Ascension Pyrocarbon Lunate is available in 5 sizes for use in left or right applications. Device components are provided sterile in individual packaging. # INTENDED USE: The Ascension® PyroCarbon Lunate is intended for replacement of the lunate bone in the proximal carpal row of the wrist in the presence of: - Avascular necrosis (Kienboch's disease) . - Localized osteoarthritic changes � - Long-Standing dislocations . {1}------------------------------------------------ 510(k) Premarket Notification Device: Ascension® Lunate K080947 pg 2 of 2 Page 13 of 141 ### BASIS OF SUBSTANTIAL EQUIVALENCE: A comparison of the Ascension Lunate and the Swanson Titanium Carpal Implant (K864491) show similar design features, surgical technique and indications. The Ascension Lunate and the Ascension CMC (K061451) are made of the same material and both are intended to articulate with carpal bone. Performance testing was performed on the Pyrocarbon Lunate These test results demonstrate that the Ascension Lunate's strength and endurance are adequate to ensure device safety. {2}------------------------------------------------ DEPARTMENT OF HEALTH & HUMAN SERVICES Image /page/2/Picture/1 description: The image shows the seal of the Department of Health & Human Services (USA). The seal features a stylized eagle with three stripes forming its wing. The text "DEPARTMENT OF HEALTH & HUMAN SERVICES (USA)" is arranged in a circular pattern around the eagle. Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850 JUN 1 7 2008 Director, Clinical Affairs 8700 Cameron Road, #100 Austin, Texas 78754-3832 Ascension Orthopedics, Inc. % Ms. Debbie Steams Re: K080997 Trade/Device Name: Ascension PyroCarbon Lunate Regulation Number: 21 CFR 888.3750 Regulation Name: Wrist joint carpal lunate polymer prosthesis Regulatory Class: Class II Product Code: KWN Dated: April 4, 2008 Received: April 16, 2008 Dear Ms. Stearns: 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. {3}------------------------------------------------ Page 2 – Ms. Debbie Stearns 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 Center for Devices and Radiological Health's (CDRH's) Office of Compliance at (240) 276-0120. Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21CFR Part 807.97). For questions regarding postmarket surveillance, please contact CDRH's Office of Surveillance and Biometric's (OSB's) Division of Postmarket Surveillance at (240) 276-3474. For questions regarding of device adverse events (Medical Device Reporting (MDR)), please contact the Division of Surveillance Systems at (240) 276-3464. You may obtain other general information on your responsibilities under the Act from the Division of Small Manufacturers, International and Consumer Assistance at toll-free number (800) 638-2041 or (240) 276-3150 or the Internet address http://www.fda.gov/cdrh/industry/support/index.html. Sincerely yours. Mark N. Milliman Mark N. Melkerson Director Division of General, Restorative and Neurological Devices Office of Device Evaluation Center for Devices and Radiological Health Enclosure {4}------------------------------------------------ ### 5 Indications for Use Statement KO80997 510(K) Number. Device Name: Ascension® PyroCarbon Lunate ### Indications for Use: The Ascension® PyroCarbon Lunate is intended for replacement of the lunate bone in the proximal carpal row of the wrist in the presence of: - Avascular necrosis (Kienboch's disease) - Localized osteoarthritic changes - Long-Standing dislocations OR Prescription Use × Over-The-Counter Use (Part 21 CFR 801Subpart B) (Part 21 CFR 801Subpart C) (PLEASE DO NOT WRITE BELOW THIS LINE - CONTINUE ON ANOTHER PAGE IF NECESSARY) ### Concurrence of CDRH, Office of Device Evaluation (ODE) Neil Re al for mkm Division Sig Division of General, Restorative, and Neurological Devices **510(k) Number** K080997
Innolitics

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