| 主权项 |
1. An implant for insertion between two regions of tissue, the implant comprising:
(a) a base having a first contact surface for contacting a first region of tissue, said base comprising a first portion in linearly sliding engagement with a second portion, said base having an initial length and being shortened towards a second length when relative displacement of said first portion and said second portion increases an extent of overlap between said first portion and said second portion; (b) a hinged element having a second contact surface for contacting a second region of tissue, said hinged element being interconnected with said first portion of said base at an effective hinge; and a linking segment hingedly connected to said second portion of said base so as to be pivotable about a first axis and further hingedly connected to said hinged element so as to be pivotable about a second axis,such that shortening of said base from said initial length towards said second length causes said linking segment to push a region of said hinged element away from said base, thereby changing an angle of said second contact surface relative to said first contact surface,wherein said second contact surface has a largest dimension referred to as a contact surface length, and wherein said linking segment has a dimension between said first axis and said second axis referred to as a linking segment length, said contact surface length being at least 40% longer than said linking segment length. |
