System and method for repairing articular surfaces

• US 9,962,265 B2
• Filed: 03/06/2015
• Issued: 05/08/2018
• Est. Priority Date: 03/07/2014
• Status: Active Grant

• Current Assignee: Arthrosurface, Inc (Anika Therapeutics Incorporated)
• Original Assignee: Arthrosurface, Inc (Anika Therapeutics Incorporated)
• Inventors: Ek, Steven W., Ek, Steven E., Jawrani, Nikhil T.
• Primary Examiner(s): Stewart, Jason-Dennis
• Application Number:
  US14/640,774
• Publication Number:
  US 20150250594A1
• Time in Patent Office: 1,159 Days
• CPC Class Codes: A61B 17/0642 for bones, e.g. for osteosynthesis or connecting tendon to bone
• CPC Class Codes: A61B 2017/0409 Instruments for applying suture anchors
• CPC Class Codes: A61B 2017/044 with a threaded shaft, e.g. screws
• CPC Class Codes: A61B 2017/0648 threaded, e.g. tacks with a screw thread
• CPC Class Codes: A61F 2/28 Bones joints A61F2/30
• CPC Class Codes: A61F 2/30 Joints
• CPC Class Codes: A61F 2/30756 Cartilage endoprostheses A61F2/3603 takes precedence
• CPC Class Codes: A61F 2/40 for shoulders
• CPC Class Codes: A61F 2/4081 Glenoid components, e.g. cups
• CPC Class Codes: A61F 2/4606 of wrists or ankles; of hands, e.g. fingers; of feet, e.g. toes
• CPC Class Codes: A61F 2/4618 of cartilage
• CPC Class Codes: A61F 2/4637 for connecting or disconnecting two parts of a prosthesis
• CPC Class Codes: A61F 2002/30331 made by longitudinally pushing a protrusion into a complementarily-shaped recess, e.g. held by friction fit
• CPC Class Codes: A61F 2002/30364 Rotation about the common longitudinal axis
• CPC Class Codes: A61F 2002/30405 made by screwing complementary threads machined on the parts themselves
• CPC Class Codes: A61F 2002/30462 retained or tied with a rope, string, thread, wire or cable
• CPC Class Codes: A61F 2002/305 Snap connection
• CPC Class Codes: A61F 2002/30649 Ball-and-socket joints
• CPC Class Codes: A61F 2002/3085 with a threaded, e.g. self-tapping, bone-engaging surface, e.g. external surface
• CPC Class Codes: A61F 2002/4627 with linear motion along or rotating motion about the instrument axis or the implantation direction, e.g. telescopic, along a guiding rod, screwing inside the instrument
• CPC Class Codes: A61F 2002/4628 : with linear motion along or rotating motion about an axis transverse to the instrument axis or to the implantation direction, e.g. clamping
• CPC Class Codes: A61F 2310/00011 : Metals or alloys

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.

Claims

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 first socket implant and said second anchor is configured to be secured to said second ball implant to form a total shoulder joint replacement; and

wherein said first socket implant and said second ball implant are configured to be removed from said first and said second anchors, and said first anchor is configured to be subsequently secured to said support plate using a first tapered connection therebetween and said first ball implant is configured to be subsequently secured to support plate using a second tapered connection therebetween, and said second anchor is configured to be subsequently secured to said second socket implant to form a reverse shoulder replacement.

24. The joint replacement system of claim 23, wherein said support plate further includes at least one aperture configured to receive a fastener configured to secure said support plate into said glenoid bone.

25. The joint replacement system of claim 24, further comprising said fastener.

26. The joint replacement system of claim 23, wherein at least one of said first or said second anchors includes a threaded region configured to be secured into said glenoid bone or said humerus bone, respectively.

27. The joint replacement system of claim 23, said first anchor includes a threaded region configured to adjust a height of said first anchor relative to said first articular surface of said glenoid bone such that said socket-shaped load bearing surface of said first socket implant, when secured to said first anchor, is substantially flush with a surrounding articular surface of said glenoid bone.

28. The joint replacement system of claim 23, wherein second anchor of said second implant system includes a threaded region configured to be secured into said humerus bone.

29. The joint replacement system of claim 23, said second anchor includes a threaded region configured to adjust a height of said second anchor relative to said second articular surface of said humerus bone such that said generally hemispheric ball-shaped load bearing surface of said second socket implant, when secured to said second anchor, is substantially flush with a surrounding articular surface of said humerus bone.