System and method for repairing articular surfaces

Patent metadata

Field	Value
Publication number	US-9962265-B2
Application number	US-201514640774-A
Country	US
Kind code	B2
Filing date	Mar 6, 2015
Priority date	Mar 7, 2014
Publication date	May 8, 2018
Grant date	May 8, 2018

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 and a second articular surface corresponding to a first and a second oppositely arranged bone, respectively, said system comprising:
a first implant system comprising:
a first implant comprising:
a first implant body including a first load bearing surface having a contour defining a generally hemispherical ball; and
a support plate configured to be secured to said first implant body using a first tapered connection therebetween; and

a first anchor configured to be secured into said first bone, wherein said first anchor is configured to be secured to said first implant body using a second tapered connection therebetween; and

a second implant system comprising:
a second implant including a second load bearing surface having a contour defining a socket configured to articulate against said first load bearing surface; and
a second anchor configured to be secured into said second bone, wherein said second anchor is configured to be secured to said second implant.

2. The joint replacement system of claim 1 , wherein said first tapered connection comprise a tapered cavity and a tapered protrusion configured to form said first tapered connection therebetween.

3. The joint replacement system of claim 1 , wherein said first anchor includes a longitudinal passageway having a first and a second oppositely disposed opening.

4. The joint replacement system of claim 3 , further comprising a guide wire configured to be at least partially received through said first and said second opposite openings of said longitudinal passageway of said first anchor.

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

6. The joint replacement system of claim 5 , wherein said second load bearing surface is configured to replace substantially the entire second articular surface.

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

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

9. 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 first bone.

10. The joint replacement system of claim 9 , further comprising said fastener.

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

12. The joint replacement system of claim 1 , wherein at least one of said first or said second anchors includes a threaded region configured to be secured into said first or said second bones, respectively.

13. The joint replacement system of claim 1 , said first anchor includes a threaded region configured to adjust a height of said first anchor relative to said first articular surface of said first bone such that said first load bearing surface of said first implant system, when secured to said first anchor, is substantially flush with a surrounding articular surface of said first bone.

14. The joint replacement system of claim 1 , wherein second anchor of said second implant system includes a threaded region configured to be secured into said second bone.

15. A joint replacement system for repairing a first and a second articular surface corresponding to a first and a second oppositely arranged bone, respectively, said system comprising:
a first and a second implant system configured to be secured to said first and said second bone, respectively, said first and said second implant systems each comprising:
an implant having a load bearing surface, wherein said load bearing surface of said first and said second implant system are configured to directly articulate against each other; and
an anchor configured to be independently secured to said a respective one of said first or said second implants, said anchor configured to be threadably secured into a respective one of said first or said second bones to adjust a height of said anchor relative to said articular surface such that said load bearing surface of said implant, when secured to said anchor, is substantially flush with a surrounding articular surface of a respective one of said first or said second bones;
wherein said first implant system further includes a support plate including a first tapered surface configured to be secured to a first corresponding tapered surface of said implant of said first implant system to form a first tapered connection therebetween; and
wherein said anchor of said first implant system further includes a second tapered surface configured to be secured to a second corresponding tapered surface of said implant of said first implant system using to form a second tapered connection therebetween.

16. The joint replacement system of claim 15 , wherein said implant and said anchor of said second implant system include a first and a second fixation element, respectively.

17. The joint replacement system of claim 16 , wherein said first and said second fixation element of said of said second implant system are configured to form tapered connection therebetween.

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

19. The joint replacement system of claim 18 , wherein said anchor of said of said second implant system defines an implant cavity configured to receive at least a portion of a bone facing surface of said implant of said of said first implant system.

20. The joint replacement system of claim 15 , wherein said load bearing surface of said of said second implant system has a contour defining a socket and wherein said load bearing surface of said first implant system has a contour defining a generally hemispherical ball configured to articulate, at least in part, in said socket.

21. The joint replacement system of claim 15 , wherein said support plate further includes at least one aperture configured to receive a fastener configured to secure said support plate into said first bone.

22. The joint replacement system of claim 21 , further comprising said fastener.

23. A joint replacement system for repairing a first and a second articular surface corresponding to an articulating glenoid bone and a humerus bone, respectively, said system comprising:
a first implant system comprising:
a first socket implant having a socket-shaped load bearing surface;
a first ball implant having a generally hemispherical ball-shaped load bearing surface;
a support plate; and
a first anchor configured to be secured into said glenoid bone; and

a second implant system comprising:
a second socket implant having a socket-shaped load bearing surface configured to articulate against said generally hemispherical ball-shaped load bearing surface of said first ball implant;
a second ball implant having a generally hemispherical ball-shaped load bearing surface configured to articulate against said socket-shaped load bearing surface of said first socket implant; and
a second anchor configured to be secured into said humerus bone;

wherein said first anchor is configured to be secured to said fi

Assignees

• Arthrosurface Inc

Inventors

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

Classifications

• A61F2002/30331

  made by longitudinally pushing a protrusion into a complementarily-shaped recess, e.g. held by friction fit · CPC title

• A61F2/40 Primary

  for shoulders · CPC title

• A61F2/4606

  of wrists or ankles; of hands, e.g. fingers; of feet, e.g. toes · CPC title

• A61F2002/30462

  retained or tied with a rope, string, thread, wire or cable · CPC title

• A61B17/0642

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