Precision bone cutting guide

• US 5,042,983 A
• Filed: 10/30/1989
• Issued: 08/27/1991
• Est. Priority Date: 10/30/1989
• Status: Expired due to Term

• Current Assignee: Wright Medical Technology Incorporated (Stryker Corporation)
• Original Assignee: John M. Rayhack
• Inventors: Rayhack, John M.
• Primary Examiner(s): Yu, Mickey
• Assistant Examiner(s): NOT, DEFINED
• Application Number:
  US07/428,831
• Time in Patent Office: 666 Days
• Field of Search: 606/79, 606/80, 606/82, 606/87-89, 606/96-98, 606/176-179, 606/53
• US Class Current: 606/87
• CPC Class Codes: A61B 17/15 Guides therefor arrangements for guiding straight saw blades in general B23D51/025

Abstract

The bone saw guide of this invention allows precise perpendicular or angular cutting of a bone with a conventional bone saw. An inverted U-shaped blade guide portion positions the blade and an upstanding saw guide portion guides the neck of the saw. A plate connects the two portions. The invention allows a bone segment to be removed and the cut ends to be compressed together to shorten the bone.

Claims

1. A bone saw guide for guiding a blade operatively connected to a neck of a bone saw to cut a bone, comprising in combination:

an elongated plate;

means for affixing said elongated plate to the bone;

a substantially U-shaped blade guide portion having a horizontal portion and a pair of legs depending therefrom, said horizontal portion and said legs including at least one blade slot for receiving and guiding the blade;

means for affixing said horizontal portion transverse to said elongated plate;

a saw guide portion having at least one upstanding arm for guiding the neck of the bone saw; and

means for affixing said saw guide portion relative to said elongated plate to extend upwardly therefrom.

2. The bone saw guide as set forth, in claim 1, wherein said elongated plate comprises a middle portion, a forward portion, and a rearward portion, said saw guide portion being positioned at said middle portion.

3. The bone saw guide as set forth in claim 1, wherein said affixing means comprises holes positioned in said elongated plate allowing bone threaded fasteners to be positioned therethrough into the bone.

4. The bone saw guide as set forth in claim 1, wherein said blade guide portion includes a plurality of said blade slots positioned parallel to each other.

5. The bone saw guide as set forth in claim 1, wherein said blade slot is perpendicularly positioned relative to said elongated plate.

6. The bone saw guide as set forth in claim 1, wherein said blade slot is angularly positioned relative to said elongated plate.

7. The bone saw guide as set forth in claim 1, wherein said upstanding arm includes a surface positioned parallel to said blade slot allowing a transverse face of the bone saw to rest against said surface to position the blade in alignment with said blade slot.

8. The bone saw guide as set forth in claim 4, wherein said upstanding arm includes a surface positioned parallel to said blade slot allowing a transverse face of the bone saw to rest against said surface to position the blade in alignment with said blade slot.

9. The bone saw guide as set forth in claim 8, further including a shim for positioning against said surface to position the blade in alignment with the desired blade slot.

10. A bone saw guide for guiding a blade operatively connected to a neck of a bone saw to cut a bone, comprising in combination:

an elongated plate;

means for affixing said elongated plate to the bone;

a saw guide portion;

a substantially U-shaped blade guide portion having a horizontal portion and a pair of legs depending therefrom, said horizontal portion and said legs including at least one blade slot for receiving and guiding the blade;

means for affixing said horizontal portion transverse to said elongated plate; and

means for affixing said saw guide portion relative to said elongated plate to extend upwardly therefrom.

11. The bone saw guide as set forth in claim 10, wherein said saw guide portion comprises at least one upstanding arm for guiding the neck of the bone saw.

12. The bone saw guide as set forth in claim 10, wherein said elongated plate comprises a middle portion, a forward portion, and a rearward portion, said saw guide portion being positioned at said middle portion.

13. The bone saw guide as set forth in claim 10, wherein said affixing means comprises holes positioned in said elongated plate allowing bone threaded fasteners to be positioned therethrough into the bone.

14. The bone saw guide as set forth in claim 10, wherein said blade guide portion includes a plurality of said blade slots positioned parallel to each other.

15. The bone saw guide as set forth in claim 10, wherein said blade slot is perpendicularly positioned relative to said elongated plate.

16. The bone saw guide as set forth in claim 10, wherein said blade slot is angularly positioned relative to said elongated plate.

17. The bone saw guide as set forth in claim 11, wherein said upstanding arm includes a surface positioned parallel to said blade slot allowing a transverse face of the bone saw to rest against said surface to position the blade in alignment with said blade slot.

18. The bone saw guide as set forth in claim 11, wherein said upstanding arm includes a surface positioned parallel to said blade slot allowing a transverse face of the bone saw to rest against said surface to position the blade in alignment with said blade slot.

19. The bone saw guide as set forth in claim 18, further including a shim for positioning against said surface to position the blade in alignment with said blade slot.