Rotating track cutting guide system

• US 6,858,032 B2
• Filed: 04/12/2002
• Issued: 02/22/2005
• Est. Priority Date: 08/23/2001
• Status: Active Grant

• Current Assignee: Midwest Orthopedic Research Foundation
• Original Assignee: Midwest Orthopedic Research Foundation
• Inventors: Gustilo, Ramon B., Chow, Steven, Lew, William D.
• Primary Examiner(s): Philogene, Pedro
• Application Number:
  US10/121,461
• Publication Number:
  US 20030045883A1
• Time in Patent Office: 1,047 Days
• Field of Search: 606/80, 606/88, 606/102, 606/86, 606/87, 606/89, 606/79, 606/96
• US Class Current: 606/80
• CPC Class Codes: A61B 17/15 Guides therefor arrangements for guiding straight saw blades in general B23D51/025
• CPC Class Codes: A61B 17/155 Cutting femur

Abstract

The present invention is a rotating track cutting guide system that maintains precise alignment of a bone saw with bone tissue. The rotating track cutting guide generally includes a track subassembly and cutting guide subassemblies attachable to the bone that is to be cut. The track subassembly supports an oscillating surgical saw driver. The track subassembly is removably securable to cutting guide subassemblies which are attachable to the desired bone to facilitate a series of controlled cuts. The design of the track subassembly stabilizes the oscillating saw driver and enables it to both rotate in the plane of the saw blade and move linearly along the track.

Claims

1. An orthopedic cutting guide system for precise planar cutting of bony tissue in association with orthopedic surgical procedures, the system comprising:

an alignment device adapted to support a surgical bone cutting saw driver, said saw driver driving a generally planar saw blade, said saw driver being supported by said alignment device such that movement of said blade is substantially fixed in a plane coplanar with the plane of said blade relative to said alignment device but the saw driver is free to move both translationally and rotationally relative to said alignment device, said alignment device further being oriented so that a long axis thereof extends generally outward and away from said bony tissue; and

a cutting guide adapted to be removably attached to a bone and further adapted to releasably receive said alignment device in at least one nonajustable, substantially fixed position, said fixed position being precisely angularly oriented relative to said cutting guide and wherein said saw blade is passable throgh an aperture closely approximating a least dimension of said saw blade.

2. The orthopedic cutting guide system as claimed in claim 1, further comprising a carriage adapted to support said surgical bone cutting saw driver while allowing said saw blade driver to translate along and rotate relative to said alignment device.

3. The orthopedic cutting guide system as claimed in claim 1, in which said bone comprises a long bone having a longitudinal mechanical axis, said cutting guide comprising an attachment member adapted such that said alignment device is engaged to said bone such that said saw blade cuts a planar surface generally orthogonal to said longitudinal mechanical axis.

4. The orthopedic cutting guide system as claimed in claim 1, in which said bone comprises a long bone having a long axis, said cutting guide comprising an attachment member adapted such that said alignment device is engaged to said bone such that said saw blade cuts a planar surface generally oblique to said longitudinal mechanical axis.

5. The orthopedic cutting guide system as claimed in claim 1, in which said bone comprises a long bone having a longitudinal mechanical axis, cutting guide comprising an attachment member adapted such that said alignment device is aged to said bone engaged such that said saw blade cuts a planar surface generally parallel to said longitudinal mechanical axis.

6. The orthopedic cutting guide system as claimed in claim 1, in which said cutting guide is removably attached to said bone by a means selected from a consisting of clamps, screws, pins, adhesives and drill bits.

7. The orthopedic cutting guide system as claimed in claim 1, in which said alignment device is releasably secured to said cutting guide by at least one attachment member.

8. The orthopedic cutting guide system as claimed in claim 1, said cutting guide further defining alignment member receivers and said alignment device further comprising alignment members whereby said alignment device is precisely aligned with and releasably attached to said cutting guide.

9. The orthopedic cutting guide system as claimed in claim 1, which said aperture is defined by said cutting guide.

10. The orthopedic cutting guide system as claimed in claim 1, which said aperture is defined by said alignment device.

11. The orthopedic cutting guide system as claimed in claim 1, which said aperture is defined in part by said cutting guide and in part by said alignment device.

12. The orthopedic cutting guide system as claimed in claim 1, further comprising a selectively attachable femoral reference to aid locating said cutting guide.

13. The orthopedic cutting guide system as claimed in claim 1, in which said alignment device and said cutting guide are an integral unit.

14. The orthopedic cutting guide system as claimed in claim 2, in which said carriage movably engages with said alignment device via a mechanism selected from a group consisting of bushings, roller bearings, ball bearings and sliding bearings.

15. The orthopedic cutting guide system as claimed in claim 1, which said alignment device is releasably secured to said cutting guide via a mechanism selected from a group consisting of pegs, clips, screws, pins, bayonet fit and friction fit.

16. The orthopedic cutting guide system as claimed in claim 2, in which said carriage is secured to said surgical bone cutting saw driver by a means selected from a group consisting of screws, adhesives, clamping, pegs, clip, screws, pins, bayonet fit and a friction fit.

17. A method for precise planar cutting of bony tissue in association with orthopedic surgical procedures, the method comprising the steps of:

removably attaching a cutting guide to a bone;

removably securing an alignment device adapted to support a surgical bone cutting saw driver, said saw driver having a generally planar saw blade, said alignment device supporting said saw driver such that said blade is substantially fixed in a plane generally coplanar with the plane of said blade relative to said alignment device but the saw driver is free to move translationally and rotationally relative to said alignment device;

advancing said saw driver axially along said alignment device and manipulating said saw driver rotationally so as to cut said bone to create a desired first planar cut bone surface.

18. The method as claimed in claim 17, further comprising the step of relocating said cutting guide to a second location secured to said bone, said second location being chosen so as to allow the making of a second and additional planar surfaces precisely aligned relative to said first planar cut bone surface.

19. The method us claimed in claim 17, further comprising the step of utilizing a selectively attachable femoral reference to aid locating said cutting guide for creating said second and additional planar surfaces.

20. An orthopedic cutting guide system for precise planar cutting of bony tissue in association with orthopedic surgical procedures, the system comprising:

means for supporting a surgical saw driver having a generally planar saw blade such that said saw blade is substantially fixed in a pitch axis and a roll axis but the saw driver is free to move in a yaw axis and to translate axially relative to said supporting means;

means for guiding said saw blade, said guiding means adapted to be removably secured to a bone, said guiding means comprising means for removably, substantially rigidly receiving said supporting means whereby said surgical saw driver can be translated and yawed in order to prepare a precision cut substantially planar bone surface.

21. The orthopedic cutting guide system as claim in claim 20, further comprising a carriage adapted to support said surgical bone cutting sa driver while allowing said saw driver to translate along and rotate relative to said supporting means.

22. The orthopedic cutting guide system as claimed in claim 20, in which said bony tissue comprises a long bone having a longitudinal mechanical axis, said guiding means comprising an attachment member adapted inch that said supporting means is engaged to said bone such that said saw blade cuts a planar surface generally orthogonal to said longitudinal mechanical axis.

23. The orthopedic cutting guide system as claimed in claim 20, in which said bony tissue comprises a long bone having a longitudinal mechanical axis, said guiding means comprising an attachment member adapted such that said alignment device is engaged to said bone such that said saw blade cuts a planar surface generally oblique to said longitudinal mechanical axis.

24. The orthopedic cutting guide system as claimed in claim 20, in which said bony tissue comprises a long bone having a longitudinal mechanical axis, said guiding means comprising an attachment member adapted such that said alignment device is engaged to said bone engaged such that said saw blade cuts a planar surface gen eraly parallel to said long axis.

26. The orthopedic cutting guide system s claimed in claim 20, in which said alignment device is releasably secured to said guiding means by at least one attachment member.

27. The orthopedic cutting guide system as claimed in claim 20, said guiding means further defining alignment member receivers and said alignment device further comprising alignment members whereby said alignment device is precisely aligned and releasably attached to said cutting guide.

28. The orthopedic cutting guide system as claimed in claim 20, in which an aperture closely approximating a least dimension of said saw blade is defined said guiding means.

29. The orthopedic cutting guide system as claimed in claim 20, in which an aperture closely approximating a least dimension of said saw blade is defined by said alignment device.

30. The orthopedic cutting guide system as claimed in claim 20, in which an aperture closely approximating a least dimension of said saw blade is defined part by said guiding means and in part by said alignment device.

31. The orthopedic cutting guide system as claimed in claim 20, further comprising a selectively attachable femoral reference to aid locating said guiding means.

32. The orthopedic cutting guide system as claimed in claim 20, further comprising a femoral reference to aid locating said guiding means.

25. The orthopedic cutting guide system as claimed in clam 20, in which said guiding means is removably fixated to said bone by a means selected from a group consisting of clamps, screws, pins and drill bit.

33. An orthopedic cutting guide system for precise cutting of bony tissue in association with orthopedic surgical procedures, the system comprising:

a curved alignment device adapted to support a surgical bone cutting saw driver, said saw blade being supported such that movement of said saw driver is substantially fixed in parallel relationship relative to said alignment device but the saw driver is free to move translationally and rotationally relative to said alignment device, said alignment device further being oriented so that a path of travel of said saw driver along said alignment device extends generally across said bony tissue; and

a cutting guide adapted to be removably fixated directly to a bone.

34. The orthopedic cutting guide system as claim in claim 33, further comprising a carriage adapted to support said surgical bone cutting saw driver while allowing said saw driver to move in a parallel fashion relative to said alignment device.

35. The orthopedic cutting guide system as claimed in claim 33, in which said cutting guide is removably fixated to said by bone a means selected from a group consisting of clamps, screws, pins, adhesives and drill bits.

36. The orthopedic cutting guide is system as claimed in claim 33, in which said aligment device is releasably secured to said cutting guide by at least one attachment member.

37. The orthopedic cutting guide system as claimed in claim 33, said cutting guide further defining alignment member receivers and said alignment device further comprising alignment members whereby said alignment device is precisely aligned and releasably attached to said cutting guide.

38. The orthopedic cutting guide system as claimed in claim 33, further comprising a selectively attachable femoral reference to aid locating said cutting guide.

39. The orthopedic cutting guide system as claimed in claim 33, in which said alignment device and said cutting guide are an integral unit.

40. The orthopedic cutting guide system as claimed in claim 33, in which said alignment device is releasably secured to said cutting guide via a mechanism selected from a group consisting of pegs, clips, screws, pins, bayonet fit and friction fit.

41. The orthopedic cutting guide system as claimed in claim 34, which said carriage movably engages with said alignment device via a mechanism selected from a group consisting of bushings, roller bearings, ball bearings and sliding bearings.

42. The orthopedic cutting guide system as claimed in claim 34, in which said carriage is secured to said surgical bone cutting saw driver by a means selected from a group consisting of screws, adhesives, clamping, pegs, clips, screws, pins, bayonet fit and friction fit.

43. An orthopedic cutting guide system for precise planar cutting of bony tissue in association with orthopedic surgical procedures, the system comprising:

an alignment device cutting guide comprising an alignment device portion and a cutting guide portion;

the alignment device portion adapted to support a surgical bone cutting saw driver, said saw driver having a generally planar saw blade, said saw driver being supported by said alignment device such that movement of said blade is substantially fixed in a plane coplanar with the plane of said blade relative to said alignment device portion but the saw driver is free to move translationally ad rotationally lative to said alignment device portion, said alignment device portion further being oriented so that a long axis thereof extends generally outward and away from said bony tissue; and

the cutting guide portion adapted to be removably attached to a bone and further adapted to support said alignment device portion in a nonadjustable, substantially fixed position, said fixed position being precisely angularly oriented relative to said cutting guide and wherein said saw blade is passable through an aperture closely approximating a least dimension of said saw blade.

44. The orthopedic cutting guide system as claimed in claim 43, further comprising a carnage adapted to support said surgical bone cutting saw driver while allowing said saw driver to translate along and rotate relative to said alignment device portion.

45. The orthopedic cutting guide system as claimed in claim 43, in which said bone comprises a long bone having a longitudinal mechanical axis, said cutting guide comprising an attachment member adapted such that said alignment device portion is engaged to said bone such that said saw blade cuts a planar surface generally orthogonal to said longitudinal mechanical axis.

46. The orthopedic cutting guide system as claimed in claim 43, in which said bone comprises a long bone having a long axis, said cutting guide comprising an attachment member adapted such that said alignment device portion is engaged to said bone such that said saw blade cuts a planar surface generally oblique to said longitudinal mechanical axis.

47. The orthopedic cutting guide system as claimed in claim 43, in which said bone comprises a long bone having a longitudinal mechanical axis, said cutting guide comprising an attachment member adapted such that said alignment device portion is engaged to said bone engaged such that said saw blade cuts a planar surface generally parallel to said longitudinal mechanical axis.

48. The orthopedic cutting guide system as claimed in claim 43, in which said cutting guide portion is removably attached to said bone by a means selected from a group consisting of clamps, screws, pins, adhesives and drill bits.

49. The orthopedic cutting guide system as claimed in claim 43, which said alignment device portion is releasably secured to said cutting guide by at least means attachment member.

50. The orthopedic cutting guide system as claimed in claim 43, in which said aperture is defined by said cutting guide portion.

51. The orthopedic cutting guide system as claimed in claim 43, in which said aperture is defined by said alignment device portion.

52. The orthopedic cutting guide system as claimed in claim 43, in which said aperture is defined in part by said cutting guide and in part by said alignment device.

54. The orthopedic cutting guide system as claimed in claim 44, in which said carriage movably engages with said alignment device via a mechanism selected from a group consisting of bushings, roller bearings, ball bearings and sliding bearings.

55. The orthopedic cutting guide system as claimed in claim 43, in which said alignment device is releasably secured to said cutting guide via a mechanism selected from a group consisting of pegs, clip, screws, pins, bayonet fit and friction fit.

56. The orthopedic cutting guide system as claimed in claim 43, in which said carriage is secured to said surgical bone cutting saw driver by a means selected from a group consisting or screws, adhesives, clamping, pegs, clips, screws, pins, bayonet fit and a friction fit.

53. The orthopedic cutting guide system as claimed 43, further comprising a femoral reference to aid locating said cutting guide portion.