Claims
- 1. An orthopaedic saw guide for confining a blade of a surgical saw to movement in a single plane, while allowing translational and rotational movement of the blade within the plane, said saw guide comprising a pair of curved elongated guide plates having outer surfaces and opposing inner surfaces, securing means for securing said plates together such that said inner surfaces and securing means define a guide space, and means for adjusting the distance between said inner surfaces, whereby the saw guide may be positioned adjacent a bone such that said guide space corresponds to a cut plane, and the blade can then be inserted in said guide space and constrained in the cut plane.
- 2. A saw guide as claimed in claim 1, wherein said inner surfaces of said guide plates include guide liners that are comprised of a low-friction material.
- 3. A saw guide as claimed in claim 2, wherein said guide plates are semicircular in the plane of said guide surfaces, whereby the saw guide can be placed close to the bone to be cut.
- 4. A saw guide as claimed in claim 2, wherein said guide liner includes attachment means for removably attaching said liner to said guide plate.
- 5. A saw guide as claimed in claim 4, wherein said guide plates are semicircular in the plane of said guide surfaces, whereby the saw guide can be placed close to the end of the bone to be cut.
- 6. A saw guide as claimed in claim 1, further comprising mounting means for rigidly securing said saw guide relative to a reference structure.
- 7. A saw guide as claimed in claim 6, used in a system including rigid devices that are secured relative to the reference structure, wherein said mounting means includes stabilizing means for attaching said saw guide to the rigid devices.
Parent Case Info
This is a divisional of prior application Ser. No. 08/338,422, filed on Nov. 14, 1994, which in turn is a divisional of prior application Ser. No. 08/072,466, filed on Jun. 4, 1993, now U.S. Pat. No. 5,403,319, which in turn is a divisional of application Ser. No. 07,934,713, filed on Aug. 24, 1992, now U.S. Pat. No. 5,236,432, which in turn is a divisional of application Ser. No. 07/606,521, filed on Oct. 31, 1990, now U.S. Pat. No. 5,154,717, which in turn is a divisional of application Ser. No. 07/186,345 filed on Apr. 26, 1988, now U.S. Pat. No. 4,979,949, the benefit of the filing dates of which are hereby claimed under 35 U.S.C. .sctn. 120.
US Referenced Citations (25)
Foreign Referenced Citations (5)
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Sep 1987 |
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Non-Patent Literature Citations (4)
Entry |
Garbini et al., "Robotic Instrumentation in Total Knee Arthroplasty," 33rd Annual Meeting of the Orthopaedic Research Society, Jan. 22, 1987. |
Kaiura, "Robot-Assisted Total Knee Arthroplasty: Investigation of the Feasibility and Accuracy of the Robotic Process," Master's Thesis, University of Washington, Seattle, Washington, 1986. |
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Divisions (5)
|
Number |
Date |
Country |
Parent |
338422 |
Nov 1994 |
|
Parent |
72466 |
Jun 1993 |
|
Parent |
934713 |
Aug 1992 |
|
Parent |
606521 |
Oct 1990 |
|
Parent |
186345 |
Apr 1988 |
|