Patent ID: 8029570
Filing Date: 2011-10-04
Classification: A61B,A61F,A61N

Abstract:
1. A magnet assembly for implantation in bone adjacent a joint, the assembly comprising: a container capable of being implanted in bone adjacent a joint, the container formed of a porous material and having a cavity therein for receiving a permanent magnet through an opening at one end of the container and wherein the other end of the container is closed and directed toward the joint; a permanent magnet having a width of at least 1.0 centimeter disposed in the cavity at the closed end of the container; and a cover which is fastened to the container for retaining the permanent magnet in the cavity, wherein the cover fits in the opening and wherein the cover is not attached to the permanent magnet; wherein bone grows into the porous material of the implanted container to rigidly retain the container in a fixed location in the bone; wherein the permanent magnet creates a repulsive force in order to provide a treatment in which the bone is urged away from the joint to reduce contact pressure between the bone and the joint.