Reciprocating rasps for use in an orthopaedic surgical procedure
AssigneeDePuy Synthes Products, Inc.
InventorsRyan C. Keefer, Sarah M. Anthony, Conrad L. Klotz, Kyle E. Lappin, Van A. Flamion, James A. Caywood, Francisco A. Amaral, Michael J. Fortin, Gabriel M. Surma, Joanna L. Surma
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Abstract
Reciprocating rasps for the surgical preparation of the bone prior to the implantation of a glenoid or acetabular component with complex geometry are disclosed. Surgical methods for the use of such reciprocating rasps are also disclosed.
Claims20
A reciprocating rasp surgical instrument for use in the surgical preparation of an acetabulum of a patient prior to implantation of a prosthetic acetabular component, the reciprocating rasp comprising:
- a shaft having a first end configured to be secured in a chuck of a reciprocating tool, and
- a cutting head secured to a second end of the shaft, the cutting head comprising (i) a cutting surface having a plurality of cutting teeth arranged in a geometry that corresponds with the geometry of the acetabular component, and (ii) an alignment guide that is devoid of cutting teeth and configured to cooperate with a complimentary alignment guide of an acetabular trial instrument.
A surgical instrument assembly for use in the surgical preparation of an acetabulum of a patient prior to implantation of an prosthetic acetabular component, the surgical instrument assembly comprising:
- a reciprocating surgical rasp having cutting head that comprises (i) a cutting surface having a plurality of cutting teeth arranged in a geometry that corresponds with the geometry of the acetabular component, and (ii) an alignment guide, and
- an acetabular trial instrument having an alignment guide that mates with the alignment guide of the cutting head of the surgical rasp to align the cutting surface of the cutting head with the acetabular trial instrument.
A method of surgically implanting an acetabular component into the acetabulum of a patient, comprising:
- inserting an acetabular trial instrument into the acetabulum of the patient,
- aligning a reciprocating surgical rasp with the acetabular trial instrument,
- reciprocating the surgical rasp, while the acetabular trial instrument is positioned in the acetabulum, so as to abrade bone tissue to form a cavity shaped to receive the acetabular component, and
- implanting the acetabular component in the cavity.
Dependencies are inferred from the claim text.