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US 2004/0167528 A1Published application
Collapsible acetabular reamer
AssigneeZimmer, Inc.
InventorEric J. Schantz
Life of this patent
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Abstract
A method and apparatus for performing minimally invasive hip surgery to implant an acetabular shell into the acetabulum. A collapsible acetabular reamer is moveable between an expanded position and a collapsed position. In the expanded position, the reamer reams the acetabulum. In the collapsed position, the reamer can fit through a small minimally invasive incision.
Claims20
A method for using minimally invasive surgery to ream a natural acetabulum in a patient, comprising the steps of:
- incising a hip with a minimally invasive incision;
- providing an acetabular reamer attachable to a driving tool, the reamer having a body that is adjustable to a first position with a first shape and to a second position with a second shape different than the first shape;
- positioning the reamer to the second position and second shape;
- inserting the reamer through the minimally invasive incision while in the second position;
- positioning the reamer from the second position to the first position and first shape;
- reaming the natural acetabulum while the reamer is in the first position;
- positioning the reamer from the first position to the second position and second shape;
- removing the reamer from the minimally invasive incision while in the second position;
- and
- closing the incision.
7 more elements
An acetabular reamer adapted to ream an acetabulum, comprising:
- a body being moveable between a first position and a second position, wherein the body has a different shape in the first position than the second position.
An acetabular reamer, comprising:
- a body adapted to connect to a driving tool and ream a natural acetabulum, the body being adjustable to at least a first position and second position, wherein the body has a smaller size in the second position than in the first position.
Dependencies are inferred from the claim text.