System and method for repairing articular surfaces

Patent metadata

Field	Value
Publication number	US-11766334-B2
Application number	US-202016854270-A
Country	US
Kind code	B2
Filing date	Apr 21, 2020
Priority date	Mar 7, 2014
Publication date	Sep 26, 2023
Grant date	Sep 26, 2023

Abstract

A total joint replacement system comprising a first and a second implant system. The first implant system includes a first implant having a first load bearing surface based on a first removed portion of an articular surface of a patient's first bone, and a first anchor having a first threaded region configured to be secured into the first bone, wherein the first anchor is configured to be secured to the first implant. The second implant system includes a second implant having a second load bearing surface based on a second removed portion of an articular surface of a patient's second bone, and a second anchor having a second threaded region configured to be secured into the second bone, wherein the second anchor is configured to be secured to the second implant.

First claim

What is claimed is:

1. A joint replacement system for repairing a first articular surface and a second articular surface corresponding to a humerus and a oppositely arranged glenoid cavity, respectively, said system comprising:
a humerus implant system comprising:
a first implant having a first load bearing surface; and
a first anchor having a first threaded region configured to be secured into said humerus, wherein said first anchor is configured to be secured to said first implant; and

a glenoid cavity implant system comprising:
a second implant having a hemispherical load bearing surface configured to articulate against said first load bearing surface; and
a second anchor having a second threaded region configured to be secured into said glenoid cavity, wherein said second anchor is configured to be secured to said second implant; and

a support plate, said support plate configured to be secured to said second anchor and further configured to be secured to said second implant.

2. The joint replacement system of claim 1 , wherein said second implant and said second anchor include a first and a second fixation element, respectively.

3. The joint replacement system of claim 2 , wherein said first and said second fixation elements are configured to form tapered connection therebetween.

4. The joint replacement system of claim 3 , wherein said first and said second fixation elements comprise a tapered cavity and a tapered protrusion configured to form a tapered connection therebetween.

5. The joint replacement system of claim 2 , wherein said second anchor includes a longitudinal passageway.

6. The joint replacement system of claim 5 , further comprising a guide wire configured to be at least partially received within said longitudinal passageway of said second anchor.

7. The joint replacement system of claim 2 , wherein said first and said second fixation elements are configured to form a snap-fit connection therebetween.

8. The joint replacement system of claim 7 , wherein said second anchor defines an implant cavity configured to receive at least a portion of a bone facing surface of said second implant.

9. The joint replacement system of claim 8 , wherein at least a portion of a periphery of said cavity includes said second fixation element and wherein at least a portion of said bone facing surface includes said first fixation element.

10. The joint replacement system of claim 1 , wherein said first load bearing surface is configured to replace substantially the entire first articular surface.

11. The joint replacement system of claim 1 , wherein said second load bearing surface is configured to replace a portion of said second articular surface.

12. The joint replacement system of claim 1 , wherein said first load bearing surface has a contour based on a plurality of overlapping excision sites.

13. The joint replacement system of claim 1 , wherein said first load bearing surface has a contour defining a socket.

14. The joint replacement system of claim 1 , wherein said support plate includes a first fixation element configured to be coupled to a second fixation element of said first anchor.

15. The joint replacement system of claim 14 , wherein said first and said second fixation elements are configured to form tapered connection therebetween.

16. The joint replacement system of claim 14 , wherein said first and said second fixation elements are configured to form a snap-fit connection therebetween.

17. The joint replacement system of claim 1 , wherein said support plate includes a first fixation element configured to be coupled to a second fixation element of said second implant.

18. The joint replacement system of claim 17 , wherein said first and said second fixation elements are configured to form tapered connection therebetween.

19. The joint replacement system of claim 17 , wherein said first and said second fixation elements are configured to form a snap-fit connection therebetween.

20. The joint replacement system of claim 1 , wherein said support plate further includes at least one aperture configured to receive a fastener configured to secure said support plate into said humerus.

21. The joint replacement system of claim 1 , wherein said second load bearing surface has a contour based on a portion of said second articular surface.

Assignees

• Arthrosurface Inc

Inventors

• Ek Steven W
• Ek Steven E
• Jawrani Nikhil T

Classifications

• A61F2/40 Primary

  for shoulders · CPC title

• A61B17/0642

  for bones, e.g. for osteosynthesis or connecting tendon to bone · CPC title

• A61F2/28

  Bones · CPC title

• A61F2/30

  Joints · CPC title

• A61F2/30756 Primary

  Cartilage endoprostheses (A61F2/3603 takes precedence) · CPC title