Reusable orthopaedic instrument having drain holes
View Patent ↗A reusable orthopaedic instrument includes a reusable orthopedic trial having a first outer surface and a second outer surface that is opposite the first outer surface. The second outer surface includes a plurality of sidewalls extending outwardly therefrom to form a cavity. A drain hole is formed in the second outer surface at a location within the cavity. The drain hole extends through the reusable orthopaedic trial from the second outer surface to the first outer surface. Further, the second outer surface slopes downwardly from the plurality of sidewalls toward the drain hole.
1. A reusable orthopaedic instrument comprising:
a reusable orthopaedic femoral trial including a pair of spaced apart condyles, each condyle comprising:
a first outer surface configured to articulate on a corresponding bearing surface of a tibial insert trial, the first outer surface being a convex and curved surface,
a second outer surface that is opposite the first outer surface, the second outer surface being configured to be engaged with a surgically-prepared distal end of a patient's femur, and
a plurality of drainage surfaces positioned opposite the first outer surface, wherein:
(i) each drainage surface has a plurality of sidewalls extending outwardly therefrom to form a cavity in the second outer surface,
(ii) a drain hole is formed in each drainage surface at a location within the cavity, the drain hole extending through the orthopaedic femoral trial to the first outer surface, and
(iii) each drainage surface includes a section that slopes downwardly from the plurality of sidewalls toward the drain hole formed therein.
2. The reusable orthopaedic instrument of claim 1 , wherein the reusable orthopaedic femoral trial is made from a polymer material.
3. The reusable orthopaedic instrument of claim 2 , wherein the reusable orthopaedic femoral trial is made from an injection molded polymer material.
4. The reusable orthopaedic instrument of claim 1 , wherein the plurality of sidewalls are positioned around the entire periphery of the cavity.
5. The reusable orthopaedic instrument of claim 1 , wherein the orthopaedic instrument is configured to be used in an orthopaedic surgical procedure, sterilized, and reused in a subsequent orthopaedic surgical procedure.
6. The reusable orthopaedic instrument of claim 1 , wherein the plurality of sidewalls are coupled to each other.
7. The reusable orthopaedic instrument of claim 1 , wherein the drain hole is generally equidistant from each of the plurality of sidewalls.
8. The reusable orthopaedic instrument of claim 1 , wherein the plurality of sidewalls includes a curved sidewall portion.
9. A reusable orthopaedic instrument comprising:
a reusable orthopaedic femoral trial including a pair of spaced apart condyles, the femoral trial comprising:
a convex and curved articular surface configured to articulate on a corresponding bearing surface of a tibial insert trial, and
a bone-facing surface positioned opposite the articular surface, the bone-facing surface being configured to be coupled to a surgically-prepared distal end of a patient's femur, wherein:
(i) the bone-facing surface has a plurality of openings defined therein, wherein:
(ii) a plurality of sidewalls extend inwardly from each opening to a drainage surface positioned between the bone-facing surface and the articular surface,
(iii) the sidewalls and the drainage surfaces define a plurality of cavities in the bone-facing surface,
(iv) a drain hole is defined in each drainage surface, the drain hole extending through the femoral trial to the articular surface, and
(v) each drainage surface includes a funnel-shaped section that slopes downwardly from the plurality of sidewalls toward the drain hole defined therein.