Patent ID: 7247158

Claim:
An acetabular shell impactor for use in selectively engaging and impacting acetabular shells of different sizes, comprising: an elongated impactor body having impacting and attachment ends; a releasable connection for attaching an acetabular shell to said impactor at said attachment end, said releasable connection comprising an alignment dome portion having at least one locking finger thereon, and a releasable connection spring loaded piston member, said releasable connection spring loaded piston neither normally biasing said at least one locking finger into a retracted or unlocked position, said attachment end of said impactor body having an impactor body spring-loaded piston member, said impactor body spring-loaded piston member normally biased into an extended or locked position, said impactor body spring loaded piston member positioned to abut against said releasable connection spring-loaded piston member when said releasable connection is attached to said impactor body, said impactor body spring-loaded piston member having a force greater than that of said releasable connection spring-loaded piston member such that when said releasable connection is attached to said impactor body said impactor body spring-loaded piston member normally biases said at least one locking finger of said releasable connection into said extended or locked position, and said impactor body spring-loaded piston member selectively compressible from said impactor end via an actuator to thereby remotely release said at least one locking finger into the retracted or unlocked position, whereby the acetabular shell can be inserted onto or removed from said releasable connection.