Surgical instrument and method of use
AssigneeDepuy Ireland Unlimited Company
InventorsJon M. Edwards, Daniel D. Auger
Life of this patent
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Abstract
A surgical instrument for use in an orthopaedic arthroplasty procedure includes a shaft having a first end, a second end, and a longitudinal axis extending through a center of the shaft between the first and second ends. The surgical instrument further includes a spine extending outwardly from the first end of the shaft in a direction perpendicular to the longitudinal axis, wherein the spine has a longitudinal extent that is parallel to the longitudinal axis. When the surgical instrument is in contact with a tibial implant component, the spine is adapted to be positioned within an intercondylar notch of a femoral component.
Claims18
A surgical instrument for use in an orthopaedic arthroplasty procedure, the surgical instrument comprising:
- a shaft having a first end, a second end, and a longitudinal axis extending through a center of the shaft between the first and second ends, and a rear surface extending along the longitudinal axis between the first end and the second end, the rear surface including a pair of curved surfaces adapted to contact corresponding medial and lateral condyles of a femoral component;
- a spine extending outwardly from the rear surface of the shaft between the pair of curved surfaces, the spine extending from the first end of the shaft in a direction perpendicular to the longitudinal axis having a longitudinal extent that is parallel to the longitudinal axis;
- wherein when the first end of the shaft of the surgical instrument is in contact with a tibial implant component, the spine is adapted to be positioned within an intercondylar notch of the femoral component.
An impactor for use in securing a tibial orthopaedic implant component within a bone surface, the impactor comprising:
- a shaft having a first end adapted to be impacted by a tool and a second end;
- and
- a head piece having
- a first end and a second end, the first end of the head piece being connected to the second end of the shaft and a second end of the head piece including an impaction surface, wherein the second end of the head piece further includes a pair of curved surfaces on a first surface of the head piece which is adapted to contact corresponding medial and lateral condyles of a femoral component,
- a spine extending outwardly from the first surface of the head piece between the pair of curved surfaces, the spine being adapted for insertion within an intercondylar notch of the femoral component, and
- a cavity disposed in a second surface of the head piece that is opposite the first surface, the cavity being adapted to accommodate a tibial spine extending outwardly from the tibial orthopaedic implant component,
- wherein the spine and the cavity are adapted for cooperation with the tibial orthopaedic implant component and a femoral component such that at least one of the spine and the cavity orients the head piece when the impaction surface is in contact with the tibial orthopaedic implant component.
Dependencies are inferred from the claim text.