Centralizing cement plug with countersink
AssigneeDePuy Products, Inc.
InventorEric Kolb
Life of this patent
Estimating the term…
Abstract
A prosthesis (10) including a stem (12) for implantation at least partially within the medullary canal (14) of a long bone (16). The prosthesis (10) further includes a rod (20) operably associated with the stem (12) and a centralizer (22) having an opening (24) for receiving at least a portion of the rod (20). The centralizer (22) has a surface (26) for guiding the rod (20) into the opening (24).
Claims27
A prosthesis comprising:
- a stem for implantation at least partially within the medullary canal of a long bone;
- a rod operably associated with said stem;
- and
- a centralizer defining a aperture therein for receiving at least a portion of said rod, said centralizer including a surface thereof for guiding said rod into the aperture.
A prosthesis comprising:
- a stem for implantation at least partially within the medullary canal of a long bone, said stem having a first portion and a second portion, said first portion defining an cavity therein;
- a rod at least partially fittable within the cavity of the first portion of said stem, said rod defining a longitudinal axis thereof, said rod being removable from the stem a first direction along the axis and said rod being restrained within said stem a second direction opposed to the first direction along the axis;
- and
- a centralizer operably associated with said rod.
A centralizing assembly for use with a stem for implantation at least partially within the medullary canal of a long bone comprising:
- a rod;
- and
- a centralizer defining a aperture therein for receiving at least a portion of said rod, said centralizer including a surface thereof for guiding said rod into the aperture.
A rod for use to connect a prosthetic stem with a centralizer for implantation at least partially within the medullary canal of a long bone comprising a rod adapted to be operably associated with the stem, a portion of said rod comprising a resorbable material.
A stem for use with a centralizing assembly, the stem for implantation at least partially within the medullary canal of a long bone, the stem having a first portion and a second portion, said first portion defining an cavity therein for cooperation with the centralizing assembly, the centralizing assembly being removable from the stem in a first direction and being restrained within said stem a second direction opposed to the first direction.
A method for providing total hip arthroplasty comprising:
- Resecting a long bone,
- opening a medullary canal of the long bone,
- placing a plug into the canal,
- inserting cement into the canal,
- providing a stem having a cavity on the distal end thereof,
- placing a rod into the cavity,
- implanting the first end of the stem at least partially within the medullary canal, and
- connecting the rod with the plug to centralize the stem.
Dependencies are inferred from the claim text.