Oscillating decortication burr assembly
OwnerDavid K. Boger, William Kraussinventors
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Abstract
An oscillating decorticating burr assembly for decortication of the articular surfaces of joints of the human body is disclosed. The oscillating decorticating burr assembly comprises a burr, a burr-support post, and a handle. Power is imparted to the assembly by way of a user input on the handle causing oscillation of the burr.
Claims20
An apparatus for removing at least one of articular cartilage or subchondral bone by way of oscillating decortication, the apparatus comprising:
- a burr comprising a burr rim defining a boundary of a burr wall,
- wherein the burr rim is circular or oval;
- and
- a burr support post, the burr support post comprising a first end and a second end, wherein the first end of the burr support post is integrally formed with the burr at a burr proximal end directly adjacent to the burr rim and the second end of the burr support post is configured to attach to an oscillating handle configured to provide oscillation to the burr,
- wherein the burr wall comprises a surface and a shape based upon a joint of a human hand or foot, the burr wall comprising a first radius configured to closely match said joint of the human hand or foot,
- wherein the burr wall has a generally flattened hemi-spherical shape, and the burr wall has a thickness of between one and ten millimeters, and
- wherein the surface is configured to remove the articular cartilage or the subchondral bone when oscillated against the articular cartilage or the subchondral bone.
An apparatus for removing articular cartilage or subchondral bone, the apparatus comprising:
- a burr comprising a burr rim defining a boundary of a burr wall,
- wherein the burr rim is circular or oval;
- and
- a burr support post;
- wherein the burr support post comprises a first end and a second end, wherein the first end is integrally formed with the burr as a single device at a burr proximal end directly adjacent the burr rim and the second end is attached or attachable to an oscillating handle configured to provide oscillation to the burr;
- wherein the burr wall comprises a shape based upon a joint of a human hand or foot, a convex side, and a concave side,
- wherein the burr wall has a generally flattened hemi-spherical shape, and the burr wall has a thickness of between one and ten millimeters, and
- wherein the burr is configured to fit into a joint space of the joint.
An apparatus for removing articular cartilage or subchondral bone, the apparatus comprising:
- a burr comprising a burr wall and a burr rim, wherein the burr rim defines a boundary for the burr wall, and the burr rim is circular or oval,
- wherein the burr is configured to impart an oscillating motion to remove the subchondral bone or the articular cartilage from a joint of a human hand or foot,
- wherein the burr is integrally formed with a burr support post as a single device at a first end of the burr support post and a proximal end of the burr directly adjacent the burr rim,
- wherein the burr support post is configured to be attached to an oscillating handle at a second end,
- wherein the burr wall comprises a shape based upon said joint of the human hand or foot, a convex side, and a concave side, and
- wherein the burr wall has a generally flattened hemi-spherical shape, and the burr wall has a thickness of between one and ten millimeters.
Dependencies are inferred from the claim text.