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US 2026/0102253 A1Published application
Mounting boss for attaching an intramedullary component to an artificial joint
AssigneeOrtho Development Corporation
InventorsMichael D. Ensign, Bao-Khang Ngoc Nguyen
Life of this patent
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Abstract
A mounting boss for attaching an intramedullary bone attachment component such as a sleeve or stem to an artificial joint component is provided. The mounting boss includes a mounting feature which deforms the mounting surface on the joint component to prevent undesired movement of the mounting boss after assembly to the joint component.
Claims25
A mounting system for mounting an intramedullary bone attachment component to an artificial joint component comprising:
- an artificial femoral joint component having a bone attachment surface and an articulation surface comprising a medial condyle and a lateral condyle;
- an intercondylar box comprising a medial side wall attached to the medial condyle, a lateral side wall attached to the lateral condyle, a medial mounting rail attached to a proximal side of the medial side wall, and a lateral mounting rail which is attached to a proximal side of the lateral side wall, wherein the medial mounting rail and the lateral mounting rail extend towards a center of the intercondylar box and define a proximal mounting surface;
- a mounting boss that is attachable to the medial mounting rail and the lateral mounting rail, wherein the mounting boss comprises a first distal mounting surface which is attachable to the proximal mounting surface of the femoral joint component, and wherein the mounting boss comprises a second mounting surface which is attachable to an intramedullary component to thereby attach the intramedullary component to the femoral joint component;
- wherein the mounting boss first distal mounting surface comprises a mounting feature that deforms the medial and lateral mounting rails when the mounting boss is attached to the medial and lateral mounting rails to thereby inhibit movement of the mounting boss along the medial and lateral mounting rails after attachment of the mounting boss to the medial and lateral mounting rails.
1 more element
A mounting system for mounting an intramedullary bone attachment component to an artificial joint component comprising:
- an artificial joint component having a first side with a bone attachment surface and a second side with an articulation surface;
- a first mounting rail attached to the first side of the artificial joint component, wherein the first mounting rail defines a joint component mounting surface;
- a mounting boss that is attachable to the first mounting rail, wherein the mounting boss comprises a first mounting surface which is attachable to the joint component mounting surface, and wherein the mounting boss comprises a second mounting surface which is attachable to an intramedullary bone attachment component to thereby attach the intramedullary bone attachment component to the artificial joint component;
- wherein the mounting boss first mounting surface is attached to the first mounting rail at a boss attachment joint that comprises a mounting feature that deforms the first mounting rail when the mounting boss is attached to the first mounting rail to thereby inhibit movement of the mounting boss relative to the first mounting rail.
1 more element
A mounting system for mounting an intramedullary bone attachment component to an artificial joint component comprising:
- an artificial joint component having a first side with a bone attachment surface and a second side with an articulation surface;
- a first mounting rail attached to the first side of the artificial joint component, wherein the first mounting rail defines a joint component mounting surface;
- a mounting boss that is attachable to the first mounting rail, wherein the mounting boss comprises a first mounting surface which is attachable to the joint component mounting surface, and wherein the mounting boss comprises a second mounting surface which is attachable to an intramedullary bone attachment component to thereby attach the intramedullary bone attachment component to the artificial joint component;
- a bolt comprising a threaded shank, a fastening head that does not engage a drive tool, and a drive head which is attached to the fastening head and which is formed with a drive surface that engages a drive tool, wherein the bolt passes through the mounting boss and attaches the mounting boss to the joint component, and wherein the drive head separates from the fastening head when a predetermined fastening torque is reached to inhibit removal of the bolt.
1 more element
Dependencies are inferred from the claim text.