Patent ID: 9044332
Filing Date: 2015-06-02
Classification: A61F

Abstract:
1. An implantable device, comprising: (i) a metatarsal component configured to be surgically implanted into the distal end of a resected metatarsal bone, comprising: wherein the metatarsal component is configured such that when the articulation member and the base member are mechanically joined, the locking member is disposed within the cavity such that the second surface of the articulation member abuts the second end of the base member, and the end portion of the locking member is locked within the slot; and (ii) a phalanx component configured to be surgically implanted into the proximal end of a resected proximal phalanx bone, comprising: wherein the phalanx component is configured such that when the articulation member and the base member are mechanically joined, the locking member is disposed within the cavity such that the second surface of the articulation member abuts the second end of the base member, and the end portion of the locking member is locked within the slot; wherein the metatarsal component and the phalanx component are configured to cooperatively engage when implanted such that the metatarsal articulation member and the phalanx articulation member may move with respect to each other and collectively serve as a prosthetic metatarsophalangeal joint; wherein the base member of the metatarsal component, the base member of the phalanx component, or both comprise one or more peripherally positioned flanges running longitudinally along at least a portion of the base member, each flange configured to be received within a cavity of a resected bone, wherein the flanges are flexible spring members that, when inserted into the bone cavity, exert sufficient tension to fix the base member within the bone; wherein each of the flanges comprise: