Patent ID: 9005300
Filing Date: 2015-04-14
Classification: A61F

Abstract:
1. A tibial implant comprising: a baseplate having a distally facing bone contacting surface and a proximally facing surface surrounded at least in part by a proximally extending wall, the wall having a ramp surface extending from the wall towards the baseplate proximally facing surface and a receptacle located distally of the ramp; a bearing insert mounted on the baseplate having a distally facing surface engaging the proximally facing surface of the baseplate, the bearing insert distally facing surface having a recess open to the bearing insert distally facing surface, the bearing insert having a side surface extending proximally away from the bearing insert distally facing surface and a passageway extending from the recess in the bearing insert distally facing surface to the bearing insert side surface; and a spring detent having a pin mounted in the passageway of the insert and a curved wire spring element mounted in the bearing insert recess, the wire spring element having an end engaging the pin and biasing the pin outwardly of the bearing insert side surface, the pin having a tip portion extending outwardly from the bearing insert side surface, the tip engaging the ramp as the bearing insert is mounted on the baseplate proximally facing surface.