Prosthetic implant locking assembly

A prosthetic implant assembly comprising

• a base component including means for securing the base component to a bone and a generally planar surface having a recessed portion formed therein,
• spring means situated in the recessed portion of the base component, the spring means including a tab extending away from the spring means, and
• a bearing component including means for slidably engaging the base component to couple the bearing component to the base component and means for receiving the tab of the spring means therein to lock the bearing component in a fixed position relative to the base component, wherein the recessed portion includes a first section having a predetermined, substantially uniform depth and a second section having a depth greater than the first depth of the section, and the spring means includes a spring clip having a thickness substantially equal to the predetermined depth of the first section, the spring clip being situated in the recessed portion to provide a cantilevered spring.

A prosthetic implant assembly comprising

• a base component including a generally planar surface having a recessed portion formed therein, the recessed portion including a first section having a predetermined, substantially uniform depth below the generally planar surface and a second section having a depth greater than the depth of the first section below the generally planar surface,
• a spring clip situated in the recessed portion of the base component, the spring clip including a body portion having a thickness substantially equal to the predetermined depth of the first section of the recessed portion to provide a cantilevered spring within the recessed portion, the spring clip having a tab extending away from the body portion in a direction opposite the recessed portion, and
• a bearing component including means for slidably engaging the base component and means for receiving the tab of the spring clip therein to lock the bearing component in a fixed position relative to the base component.

A prosthetic implant assembly comprising

• a base component having an anterior side and a posterior side, the base component including a generally planar surface, first and second spaced-apart slide members formed on the generally planar surface and extending from the anterior side to the posterior side, and a recessed portion formed in the generally planar surface between the first and second slide members, the recessed portion including a first section having a predetermined, substantially uniform depth below the generally planar surface and a second section having a depth greater than the depth of the first section below the generally planar surface,
• a spring clip situated in the recessed portion of the base component, the spring clip including a body portion having a thickness substantially equal to the predetermined depth of the first section of the recessed portion to provide a cantilevered spring within the recessed portion, the spring clip having a tab extending away from the body portion in a direction opposite the recessed portion, and
• a bearing component including means for slidably engaging the slide members of the base component for coupling the bearing component to the base component and means for receiving the tab of the spring clip therein to lock the bearing component in a fixed position relative to the base component.

A prosthetic implant assembly comprising

• a base component including means for securing the base component to a bone and a generally planar surface having a recessed portion formed therein,
• a flexible flat element situated in the recessed portion of the base component, the flexible flat element including a tab extending away from the flexible flat element, and
• a bearing component including means for slidably engaging the base component to couple the bearing component to the base component, the bearing element contacting the flexible flat element tab to bend the flexible flat element into an angled position as the bearing is slidingly engaging the base component and wherein the bearing component has means for receiving the tab of the spring means therein to lock the bearing component in a fixed position relative to the base component.

A prosthetic implant assembly comprising

• a base component including means for securing the base component to a bone and a generally planar surface having a recessed portion formed therein,
• spring means situated in the recessed portion of the base component, the spring means including a tab extending away from the spring means, and
• a bearing component including means for slidably engaging the base component to couple the bearing component to the base component, means for deflecting the tab, and means for receiving the tab of the spring means therein to lock the bearing component in a fixed position relative to the base component.

A prosthetic implant assembly comprising

• a base component including means for securing the base component to a bone and a generally planar surface having a recessed portion formed therein,
• spring means situated in the recessed portion of the base component, the spring means including a tab extending away from the spring means, and
• a bearing component including means for slidably engaging the base component to couple the bearing component to the base component such that the bearing is constrained to be fixed to the base while only permitting sliding movement relative thereto and means for receiving the tab of the spring means therein to lock the sliding movement of bearing component in a fixed position relative to the base component wherein it cannot slide relative thereto.

A prosthetic implant assembly comprising

• a base component including means for securing the base component to a bone and a generally planar surface having a recessed portion and a raised track portion formed therein,
• spring means situated in the recessed portion of the base component, the spring means including a tab extending away from the spring means, and
• a bearing component including a track engagement means for slidably engaging the base component to couple the bearing component to the base component and means on the bearing component for receiving the tab of the spring means therein to lock the sliding of the bearing component relative to the base component.