Implantation of magnets in bone to reduce contact pressure

Details Implantation of magnets in bone to reduce contact pressure Implantation of magnets in bone to reduce contact pressure

2002-09-25

2011-10-04

Sweet, Thomas J (Department: 3738)

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

Implantable prosthesis

Bone

Reexamination Certificate

active

08029570

ABSTRACT:
Permanent magnets are implanted in bone to unload compressive forces at joints using the repulsive force therebetween. A porous metal container is implanted first and becomes fixed in place by bone growth. The permanent magnet is then inserted in the container and retained in place. A magnet prescription system includes a display and input device which enables a user to alter parameters such as magnet size, strength and placement and calculate and display the repulsive force that will result.

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