IP Library Granted Patent US 9,138,237
Granted Patent B2
US 9,138,237 · App. 13/650,720 · Granted Sep 22, 2015

Total joint instrumentation and method for use

Inventors: Thomas Daniel Meade (Allentown, PA); Michael James Joyce (Emmaus, PA); Gary Scott Sherman (Naples, FL)
Assignee: Arthrex, Inc.
A61B17/154A61B17/15A61B17/155A61B17/157A61B17/17A61B17/1764
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Quick Facts
Patent No.
US 9,138,237
App. No.
13/650,720
Granted
Sep 22, 2015
Kind
B2
Abstract

A total joint instrument set according to an exemplary aspect of the present disclosure includes, among other things, a guide assembly that orients a cut in a first bone and a linkage guide that orients a cut in a second bone. A positioning of the linkage guide is mechanically linked to at least a portion of the guide assembly.

Claims (41)

1. A total joint instrument set, comprising:

a guide assembly that orients a cut in a first bone, said guide assembly including a femoral alignment guide, a cutting block removably received by said femoral alignment guide and a varus/valgus alignment guide removably connected to said cutting block, and said varus/valgus alignment guide includes a connecting surface that is magnetically connectable to a cutting surface of said cutting block; and

a linkage guide that orients a cut in a second bone, wherein a positioning of said linkage guide is mechanically linked to at least a portion of said guide assembly.

2. The total joint instrument set as recited in claim 1 , wherein said cutting block is rotatable about a connecting rod of said femoral alignment guide.

3. The total joint instrument set as recited in claim 1 , wherein said linkage guide includes a yoke and a linkage bar received by said yoke.

4. The total join instrument set as recited in claim 1 , wherein said linkage guide includes a cutting block and a linkage bar received by said cutting block.

5. The total joint instrument set as recited in claim 1 , comprising a marking template that aligns said cut in said first bone with said cut in said second bone.

6. The total joint instrument set as recited in claim 1 , wherein said linkage guide is mechanically linked to at least one guide pin of said guide assembly.

7. The total joint instrument set as recited in claim 6 , wherein said cutting block is removed from said guide assembly prior to mechanically linking said linkage guide.

8. The total joint instrument set as recited in claim 1 , wherein said femoral alignment guide includes a connecting rod and an alignment bar that extends from said connecting rod.

9. The total joint instrument set as recited in claim 8 , wherein said cutting block is receivable over said connecting rod and is rotatable in a varus/valgus direction about said connecting rod.

10. The total joint instrument set as recited in claim 1 , wherein said cutting block includes a plurality of pin holes configured to receive guide pins of said guide assembly.

11. The total joint instrument set as recited in claim 1 , wherein said varus/valgus alignment guide includes a guide portion that houses at least one alignment cylinder adjustable to achieve a desired positioning relative to said first bone.

12. The total joint instrument set as recited in claim 11 , wherein said at least one alignment cylinder includes a threaded middle section.

13. A total joint instrument set, comprising:

a guide assembly that orients a cut in a first bone;

a linkage guide that orients a cut in a second bone, wherein a positioning of said linkage guide is mechanically linked to at least a portion of said guide assembly;

said linkage guide including a cutting block and a linkage bar received by said cutting block; and

said cutting block including a slot and a spring mounted within a recess of said slot that removably retains said linkage bar within said slot of said cutting block.

14. A total joint instrument set, comprising:

a guide assembly that orients a cut in a first bone;

a linkage guide that orients a cut in a second bone, wherein a positioning of said linkage guide is mechanically linked to at least a portion of said guide assembly;

said linkage guide including a cutting block and a linkage bar received by said cutting block; and

a slope indicator removably connected to said cutting block to adjust an anterior/posterior slope alignment in said second bone.

15. A total joint instrument set, comprising:

a guide assembly that orients a cut in a first bone, said guide assembly including a femoral alignment guide, a cutting block removably received by said femoral alignment guide and a varus/valgus alignment guide removably connected to said cutting block;

a linkage guide that orients a cut in a second bone, wherein a positioning of said linkage guide is mechanically linked to at least a portion of said guide assembly;

said femoral alignment guide includes a connecting rod and an alignment bar that extends from said connecting rod; and

said alignment bar is sized and shaped to extend along a shaft of said first bone and extends transversely from said connecting rod.

16. A total joint instrument set, comprising:

a guide assembly that orients a cut in a first bone, said guide assembly including a femoral alignment guide, a cutting block removably received by said femoral alignment guide and a varus/valgus alignment guide removably connected to said cutting block;

a linkage guide that orients a cut in a second bone, wherein a positioning of said linkage guide is mechanically linked to at least a portion of said guide assembly; and

said cutting block includes a cutting surface having one of a bore and a protrusion and said varus/valgus alignment guide includes the other of said bore and said protrusion for connecting said varus/valgus alignment guide to said cutting block.

17. A total joint instrument set, comprising:

a guide assembly that orients a cut in a first bone, said guide assembly including a femoral alignment guide, a cutting block removably received by said femoral alignment guide and a varus/valgus alignment guide removably connected to said cutting block;

a linkage guide that orients a cut in a second bone, wherein a positioning of said linkage guide is mechanically linked to at least a portion of said guide assembly;

said varus/valgus alignment guide includes a guide portion that houses at least one alignment cylinder adjustable to achieve a desired positioning relative to said first bone; and

said guide portion houses at least two alignment cylinders that are independently turnable to adjust said at least two alignment cylinders in the anterior/posterior directions.

18. A total joint instrument, comprising:

a guide assembly that orients a cut in a femur, said guide assembly including a cutting block having a cutting surface, a varus/valgus alignment guide magnetically connectable to said cutting surface, and at least one guide pin that extends through said cutting block and into said femur; and

a linkage guide that orients a cut in a tibia, said linkage guide connectable to said at least one guide pin after removing said cutting block.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 16, 2012
From: MEADE, THOMAS DANIEL; JOYCE, MICHAEL JAMES; SHERMAN, GARY SCOTT
To: ARTHREX, INC.
Reel/Frame 029133/0545 →
Continuity (2)
Provisional Application 61546731 · Oct 13, 2011
Related Publication 20130096563A1 · Apr 18, 2013