Adjustable orthopaedic instrument
AssigneeDePuy Products, Inc.
InventorThomas Scott Camino
Life of this patent
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Abstract
A tool (10) for preparation of a cavity (12) in a long bone (14) for receiving a joint prosthesis (16) for use in arthroplasty is provided. The tool (10) includes a body (20) having an outer periphery (22) of the body (20). The outer periphery (22) is adapted to have a first shape (24) and a second shape (26) thereof of the body (20). The second shape (26) has dimensions different than the first shape (24), whereby the tool (10), when in the first shape (24), is capable of forming a first cavity (30) in the long bone (14) and whereby the tool (10), when in the second shape (26), is capable of forming a second cavity (32) in the long bone (14). The second cavity (32) is different than the first cavity (30).
Claims19
A tool for preparation of a cavity in a long bone for receiving a joint prosthesis for use in arthroplasty, said tool comprising a body having an outer periphery thereof, the outer periphery adapted to have a first shape and a second shape thereof, the second shape having dimensions different than the first shape, whereby said tool, when in the first shape is capable of forming a first cavity in the long bone and whereby said tool when in the second shape is capable of forming a second cavity in the long bone, the second cavity being different than the first cavity in the distal portion of the second cavity and substantially the same in the proximal portion of the second cavity.
A broach for removal of bone for preparation of a cavity in a long bone for receiving a joint prosthesis for use in arthroplasty, the broach comprising a body having an outer periphery thereof, at least portion of said body being capable of being flexed so that the outer periphery has an expanded shape and a contracted shape thereof, the contracted shape having dimensions different than the expanded shape, whereby the tool when in the expanded shape is capable of forming a first cavity in the long bone and whereby the tool when in the contracted shape is capable of forming a second cavity in the long bone, the second cavity being different than the first cavity.
An instrument kit for use in total joint arthroplasty the kit comprising a broach for removal of bone for preparation of a cavity in a long bone for receiving a joint prosthesis, said broach including a body having an outer periphery thereof, at least portion of said body being capable of being flexed so that the outer periphery has an expanded shape and a contracted shape thereof, the contracted shape having dimensions different than the expanded shape, whereby said broach when in the expanded shape is capable of forming a first cavity in the long bone and whereby said broach when in the contracted shape is capable of forming a second cavity in the long bone, the second cavity being different than the first cavity.
Dependencies are inferred from the claim text.