Importance

Loading Importance Indicators...

Abstract

An orthopaedic implant assembly I including a securing member or screw 10 and sealing washer 20 assembled thereto. The assembly 1 further includes a base member 30 with a hole 31 therein for receiving the screw 10 and washer 20. The screw 10 includes an enlarged head 11 with an arcuate undersurface 14 with a groove surrounding head 11 for receiving the sealing washer 20 therein. The screw hole 31 includes a complementary arcuate surface to enable screw 10 to be inserted in a selectively variable angled orientation with respect to the screw hole 31 while the washer 20 provides a seal between the head 11 of screw 10 and the base member 30. The assembly 1 may further include an additional member 40 over the hole 31 and screw 10 and washer 20, such that this layer 40 generates wear debris. The sealing washer 20 provides a barrier to the advancement of the wear debris or particulate matter beyond the sealing washer 20.

Loading the Abstract Image...

First Claim