Patent ID: 9095444
Filing Date: 2015-08-04
Classification: A61B,A61F

Abstract:
1. A medical device for treating a patient comprising: an implant having a maximum height defined by a distance between a superior surface and an inferior surface opposite the superior surface, and a length defined by a distance between first and second ends that extend between the superior and inferior surfaces, the height of the implant decreasing continuously from the first end to the second end; a solid, non-threaded passage that extends from the superior surface through the implant to the inferior surface, the passage having a length defined by a distance between a first end having a first diameter and a second end having a second diameter, the first diameter wider than the second diameter, the first end extending through the superior surface and the second end adjacent to the inferior surface, the passage having a first portion that includes the first end, and a first interference section having a constant diameter width of the second diameter and including the second end; a fastener with an elongated shape extending between a distal end and a proximal end, the fastener including an intermediate portion between the distal end and the proximal end, the proximal end and the intermediate portion each being free of threads, the distal end defining a second interference section extending along a length of the distal end and including a third diameter that is greater than the second diameter, the intermediate portion having a maximum diameter which is less than a maximum diameter of the distal end, the fastener comprising a helical thread extending continuously from a distal tip of the distal end to a proximal edge of the second interference section; one of the first and second interference sections constructed from a harder material and the other constructed from a softer material; a surface of the first interference section constructed from the softer material being modified by insertion of the fastener into the passage to create an interference fit between the implant and the fastener.