Kevin L. Ohashi,Donald E. Running,Robert J. Ball,Randip R. Bindra,John J. Fernandez,Dale R. Peterson
申请号：
US13319068
公开号：
US20140074247A1
申请日:
2010.05.07
申请国别(地区):
US
年份:
2014
代理人:
摘要：
The implant (20) is shaped to generally mimic the form of the trapezium (12), or portions thereof. For example, the implant optionally defines a first metacarpal projection (32) and a second metacarpal projection (34) spaced from the first metacarpal projection to form a C-type, or cuff-type receptacle (36) for receiving the first metacarpal (15) such as the first and second metacarpal projections extend along either side of the first metacarpal. The receptacle optionally acts as a support surface (36A) for the first metacarpal during articulation thereof. In some embodiments, the first metacarpal projection is configured to extend adjacent the end portion of the first metacarpal that is adjacent the CMC joint (10) and the second metacarpal projection is configured to extend into the space (19) between the end portions of the first and second metacarpals (15, 18), thereby helping maintain the intermetacarpal spacing between the first and second metacarpals. The implant may comprise an inflatable cover for minimally invasive implantation.
