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MOTION FACILITATING TIBIAL COMPONENTS FOR A KNEE PROSTHESIS
专利权人:
Zimmer; Inc.
发明人:
Raymond C. Parisi,Katherine M. Rettig,Jeff Blaylock
申请号:
US16530423
公开号:
US20190350718A1
申请日:
2019.08.02
申请国别(地区):
US
年份:
2019
代理人:
摘要:
An orthopaedic tibial prosthesis includes a tibial baseplate sized and shaped to cover substantially all of a resected proximal tibial surface, and a tibial bearing component sized to leave a posteromedial portion of the tibial baseplate exposed when the tibial bearing component is mounted to the baseplate. The exposed posteromedial portion of the tibial baseplate includes a chamfered profile which cooperates with a correspondingly chamfered profile at a posteromedial edge of the tibial bearing component to create a substantially continuous chamfer extending from the resected tibial surface to the medial articular surface of the tibial bearing component. Advantageously, this chamfer leaves an absence of material (i.e., a relief or void) at the posteromedial edge of the tibial prosthesis, thereby enabling deep flexion of the prosthesis without impingement between the tibial prosthesis and adjacent anatomic tissues or prosthetic structures.
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/

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