Modular prosthesis with offset attachment mechanism

Details Modular prosthesis with offset attachment mechanism Modular prosthesis with offset attachment mechanism

1994-02-22

1999-08-31

Yu, Mickey

Prosthesis (i.e., artificial body members), parts thereof, or ai

Implantable prosthesis

Bone

623 16, 623 18, 623 20, A61F 228, A61F 230, A61F 238

Patent

active

059447567

ABSTRACT:
A modular prosthesis attachment mechanism which uses a special bolt that provides an attachment position that is not directly over the hole or recess used to capture the head of the bolt. Thus, the attachment mechanism can be used with one location hole on a prosthesis and provide multiple augmentation locations just by offering multiple bolts with varying offsets. The use of a washer-like support may also be required to help redistribute the forces associated with the new attachment location. Thus, the invention is beneficial in knee replacement surgery requiring augmentation pieces. By providing the surgeon with a number of options to best place each piece, such as a stem, this mechanism can be helpful in meeting the needs of individual patients.

REFERENCES:
patent: 4822366 (1989-04-01), Bolesky
patent: 4950297 (1990-08-01), Elloy et al.
patent: 4985037 (1991-01-01), Petersen
patent: 5002581 (1991-03-01), Paxson et al.
patent: 5137535 (1992-08-01), Keller
patent: 5152796 (1992-10-01), Slamin
patent: 5326359 (1994-07-01), Oudard
patent: 5330534 (1994-07-01), Herrinton et al.

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