A - Human Necessities – 61 – B
Patent
A - Human Necessities
61
B
A61B 17/00 (2006.01) A61B 17/04 (2006.01) A61B 17/16 (2006.01) A61B 17/56 (2006.01) A61B 17/58 (2006.01) A61B 17/68 (2006.01) A61B 17/88 (2006.01) A61F 2/30 (2006.01) A61F 2/38 (2006.01) A61F 2/46 (2006.01) A61F 2/64 (2006.01) A61F 2/76 (2006.01)
Patent
CA 2407440
The present invention provides tools and mehods for mapping and measuring the articular surface of a joint (or of any bony surface) and for fabricating a prosthetic device based on this recorded data. In one embodiment, once the defect of the chondral surface has been identified, a guide pin (20) is inserted arthroscopically. A fixation screw (10) is driven into the subchondral bone in relation to a reference axis that is approximately central to the defect, the fixation device also serving to define a tangent point to the surrounding articular surface. A measuring tool (70) having a static post that establishes the axial location of origin is inserted on the reference axis. Data recorded during the mapping procedure is entered into parametric engineering design software of similar algorithm to define a three dimensional surface matched to the bearing surface geometry to be implanted and reproduce the anatomic contours mapped.
Publié sans précis
Ek Steven W.
Tallarida Steven J.
Arthrosurface Inc.
Gowling Lafleur Henderson Llp
Std Manufacturing Inc.
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