Apparatus and method of cutting and suctioning the medullary canal of long bones prior to insertion of an endoprosthesis
OwnerByron L. Browninventor
Life of this patent
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Abstract
An apparatus and method for cutting and suctioning the medullary canal of long bones prior to insertion of an endoprosthesis. A cutter is aligned with the medullary canal and the canal is enlarged. Successively larger cutters are used in conjunction with a guide to center each cutter in the medullary canal. A suction is applied to removed bone cutting and other debris resulting from the procedure.
Claims20
An apparatus for enlarging the medullary canal prior to the insertion of a prosthetic device, comprising:
- a guide assembly for mounting on a femur, including a base plate adapted to be secured to the femur and a ceiling plate attached to said base plate;
- a gasket mounted between said base plate and said ceiling plate to form a seal therebetween;
- a bone cutter extending through the guide assembly;
- a suction housing attached to said bone cutter;
- a coupling shaft in said suction housing attached to said bone cutter allowing said cutter to rotate during bone removal;
- and
- a cylindrical plug through which said bone cutter extends.
An apparatus driven by a rotary power source for enlarging the medullary canal within a femur bone prior to the insertion of a prosthetic device, comprising:
- a guide assembly including an angled cylindrical plug for mounting on the femur, a base plate adapted to be secured to the femur, a ceiling plate attached to said base plate for mounting said cylindrical plug and a gasket mounted between said base plate and said ceiling plate to form a seal therebetween;
- a tubular bone cutter extending through the cylindrical plug in said guide assembly;
- a guide assembly for centering said tubular bone cutter in the medullary canal;
- a suction housing;
- and
- a coupling shaft mounted in said suction housing, turned by said rotary power source, said coupling housing attached to said bone cutter with a chuck for rotating said cutter during bone removal.
A method for enlarging the medullary canal in a femur bone prior to the insertion of a prosthetic device,-comprising the steps of:
- attaching a guide/sealing plate to a femur bone;
- inserting a hollow bone cutter through said guide/sealing plate;
- and
- applying a suction to said hollow bone cutter during cutting to remove bone fragments and other debris resulting from bone cutting.
Dependencies are inferred from the claim text.