Patent ID: 8979935
Filing Date: 2015-03-17
Classification: A61B,A61F

Abstract:
1. An interpositional prosthetic device for positioning between a first joint surface and a second joint surface of a joint, comprising: a first prosthetic component including a first external region and a first internal region, said first external region having a first bone securement feature, said first internal region having a first articulation surface, and said first prosthetic component being sized and shaped to be positioned over a first natural articular surface associated with the first joint surface; a second prosthetic component coupled to said first prosthetic component, said second prosthetic component including a second external region and a second internal region, said second external region having a second bone securement feature, said second internal region having a second articulation surface, and said second prosthetic component being sized and shaped to be positioned over a second natural articular surface associated with the second joint surface, wherein said first internal region and said second internal region cooperate to form an encapsulated body for containing debris produced from articulation between said first internal region and said second internal region; a first ring attached to said first prosthetic component; and a second ring attached to said second prosthetic component, said first ring rotatably contacting said second ring to rotatably couple said first prosthetic component and said second prosthetic component.