John Chernosky,Ray Zubok,Timothy A. Hoeman,Imants Liepins,Keith A. Roby,Greg Stebbins,Sara Savoia
申请号：
US15111505
公开号：
US20160338712A1
申请日:
2015.01.20
申请国别(地区):
US
年份:
2016
代理人:
摘要：
Punch instruments (5) are provided in some embodiments for cutting tissue in a resected proximal tibia. Such instruments can include an elongate handle (10) and a cutting head (20) disposed at the distal end of the elongate handle (10). The cutting head (20) can include a first annular blade member (25) with a first leading cutting edge (29) that extends generally transversely to a longitudinal axis of the elongate handle (10). The cutting head (20) can include a second annular blade member (26) that is situated inwardly of the first annular blade member (25) and which includes a second leading cutting edge (30) that extends generally transversely to the longitudinal axis of the elongate handle (10).
