Instrumentation for knee resection

• US 20050149042A1
• Filed: 02/15/2005
• Published: 07/07/2005
• Est. Priority Date: 01/15/2003
• Status: Active Grant

• Current Assignee: Biomet Manufacturing, LLC (Zimmer Biomet Holdings, Inc.)
• Original Assignee: Biomet Manufacturing, LLC (Zimmer Biomet Holdings, Inc.)
• Inventors: Metzger, Robert
• Granted Patent: US 7,789,885 B2
• Time in Patent Office: Days
• US Class Current: 606/88
• CPC Class Codes: A61B 17/02 for holding wounds open; Tractors specula A61B1/32 ; drainage appliances for wounds A61M27/00
• CPC Class Codes: A61B 17/14 Surgical saws A61B17/1637 takes precedence; tooth saws A61C3/12 ; Accessories therefor
• CPC Class Codes: A61B 17/142 with reciprocating saw blades, e.g. with cutting edges at the distal end of the saw blades
• CPC Class Codes: A61B 17/144 with cutting edges at the side of the saw blades
• CPC Class Codes: A61B 17/155 Cutting femur
• CPC Class Codes: A61B 17/157 Cutting tibia
• CPC Class Codes: A61B 2090/061 for measuring dimensions, e.g. length

Abstract

A modular sizing device for a bone. The sizing device includes a sizer base positionable relative to the bone, a stylus, and a coupler operable to magnetically couple the base to the stylus for measuring a size of the bone.

Claims

1. A modular sizing device for a bone comprising:

a sizer base positionable relative to the bone;

a stylus; and

a coupler operable to magnetically couple the base to the stylus for measuring a size of the bone.

2. The modular sizing device of claim 1, further comprising a quick release mechanism for positioning the sizer base relative to the bone.

3. The modular sizing device of claim 1, wherein the coupler includes a leg for rotatable coupling to the sizer base and an arm for engaging the stylus.

4. The modular sizing device of claim 3, wherein the leg is received in a bore defined in the sizer base.

5. The modular sizing device of claim 3, further comprising a magnet received in a cavity defined in the arm.

6. The modular sizing device of claim 2, wherein the quick release mechanism includes a spring-loaded handle for gripping a post on the sizer base.

7. The modular sizing device of claim 2, wherein the quick release mechanism includes a spring-loaded handle having a plunger for engaging an aperture on the sizer base.

8. The modular sizing device of claim 3, wherein the leg is modularly connected to the arm.

9. The modular sizing device of claim 3, wherein the coupler is substantially T-shaped or L-shaped.

10. The modular sizing device of claim 3, wherein the coupler is integrally formed.

11. The modular sizing device of claim 1, further comprising a drilling guide.

12. The modular sizing device of claim 1, further comprising a foot component.

13. The modular sizing device of claim 12, wherein the foot component is modularly connected to the sizer base.

14. A modular cutting device for a bone, the cutting device comprising:

a cutting block having a cutting slot;

an alignment guide removably couplable to the cutting block; and

a drill guide slidably couplable to the cutting block.

15. The cutting device of claim 14, wherein the drill guide and the cutting block are coupled with a T-slot connection.

16. The cutting device of claim 14, further including a quick release mechanism for attaching the alignment guide to the cutting block.

17. The cutting device of claim 14, wherein the alignment guide includes a pair of feet for engaging a surface of the bone.

18. The cutting device of claim 17, wherein the bone is a distal femur.

19. The cutting device of claim 16, wherein the quick release mechanism includes a spring-loaded handle for engaging a post defined on the alignment guide.

20. The cutting device of claim 14, wherein the alignment guide includes a flange for engaging the slot of the cutting block.

21. The cutting device of claim 14, further comprising at least one soft tissue retractor coupled to cutting block.

22. The cutting device of claim 21, wherein the retractor is movable between a deployed position and a storage position.

23. The cutting device of claim 22, wherein the retractor is biased in the deployed position.

24. The cutting device of claim 22, further comprising a retainer for holding the retractor in the storage position.

25. A kit of surgical components for femoral sizing, the kit comprising:

a stylus;

a sizer base;

a coupler for coupling the sizer base to the stylus;

a magnet receivable in a cavity of the coupler for magnetic attachment to the stylus; and

a spring-loaded handle for quick-release coupling with the sizer base.

26. The kit of claim 25, further comprising:

at least one cutting block;

at least one drill guide configured for slidable coupling with the cutting block; and

at least one alignment guide configured for removable coupling with the cutting block.

27. The kit of claim 26, further comprising:

at least one stand-alone drill guide; and

at least one alignment guide for removable coupling with the stand-alone drill guide.

28. The kit of claim 26, wherein the alignment guide includes a flange receivable in a cutting slot of the cutting block.

29. The kit of claim 26, wherein the alignment guide includes a pair of feet configured to be positioned adjacent posterior condyles of a femur.

30. The kit of claim 25, further comprising a foot component for removable coupling with the sizer base.

31. The kit of claim 25, wherein the sizer base includes a drill guide coupled thereto.

32. The kit of claim 26, further comprising at least one soft tissue retractor couplable to the cutting block.

33. A device for use in orthopedic surgery, the device comprising:

a surgical instrument; and

a soft tissue retractor movably coupled to the surgical instrument.

34. The device of claim 33, wherein the surgical instrument is a cutting guide.

35. The device of claim 33, wherein the retractor is movable between a deployed position and a storage position.

36. The device of claim 35, wherein the retractor is biased in the deployed position.

37. The device of claim 35, further comprising a retainer for holding the retractor in the storage position.

38. A modular cutting device for a bone, the cutting device comprising:

a cutting block defining a cutting slot; and

a rail for attachment to the bone, the rail removably and slidably couplable to the cutting block.

39. The modular cutting device of claim 38, wherein the cutting block defines a groove engaging the rail.

40. A method for attaching a cutting device to a bone, the method comprising:

attaching a rail to a bone; and

slidably coupling the cutting device to the rail.

41. The method of claim 40, wherein slidably coupling comprises engaging a groove of the cutting block with the rail.