Patent ID: 6102950
Filing Date: 2000-08-15
Classification: A61F,Y10S

Abstract:
An intervertebral body fusion device comprising:a cage component includinga rigid upper member defining a bearing surface, an opposing interior surface and a through passage confined by said upper member;a rigid lower member defining a bearing surface, an opposing interior surface, and a through passage confined by said lower member;a resilient web bridging said upper member and said lower member and defining a living hinge, said web spacing said members from one another thereby defining a gap of a predetermined distance for receiving a wedge body between said members;a first spine having a free end and a depending end, said first spine having a tooth, said depending end depending from said upper member and disposing said tooth below said bearing surface, and said first spine further positioning said tooth in registry with said through passage of said upper member;a wedge body dimensioned and configured to be received and substantially housed in said gap, said wedge body having a predetermined diameter greater than the predetermined distance of said gap, whereby said upper and lower members become urged apart when said wedge body is inserted into said gap; anda contraction means for drawing said wedge body into said gap so as to nest within said cage component.