Bone implants with integrated line locks

• US 20060276896A1
• Filed: 06/02/2005
• Published: 12/07/2006
• Est. Priority Date: 06/02/2005
• Status: Abandoned Application

• Current Assignee: Medicinelodge, Inc (Nelso Antolotti)
• Original Assignee: Medicinelodge, Inc (Nelso Antolotti)
• Inventors: Sinnott, M. Mary, Fallin, T. Wade
• Application Number:
  US11/142,933
• Publication Number:
  US 20060276896A1
• Time in Patent Office: Days
• US Class Current: 623/16.110
• CPC Class Codes: A61B 17/06166 Sutures suture materials A61L17/00; manufacture of artificial threads D01D; treatment of threads D06M
• CPC Class Codes: A61B 17/80 Cortical plates , i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
• CPC Class Codes: A61B 17/82 for bone cerclage apparatus for manipulating wires or straps A61B17/8861; wires, bands or straps other than cerclage A61B17/842
• CPC Class Codes: A61B 17/842 Flexible wires, bands or straps A61B17/72, A61B17/82, A61B17/86 take precedence
• CPC Class Codes: A61F 2/30739 Devices connected to the proximal part of an endoprosthetic femoral shaft for reinforcing or replacing the trochanters, e.g. the greater trochanter proximal parts of endoprosthetic femoral shafts A61F2/367; non-prosthetic trochanteric devices A61B17/74
• CPC Class Codes: A61F 2/34 Acetabular cups
• CPC Class Codes: A61F 2/36 Femoral heads ; Femoral endoprostheses
• CPC Class Codes: A61F 2/3859 Femoral components
• CPC Class Codes: A61F 2/389 Tibial components A61F2/3868 takes precedence
• CPC Class Codes: A61F 2/40 for shoulders
• CPC Class Codes: A61F 2/4059 Humeral shafts
• CPC Class Codes: A61F 2/4081 Glenoid components, e.g. cups
• CPC Class Codes: A61F 2/4261 for wrists
• CPC Class Codes: A61F 2/4405 for apophyseal or facet joints, i.e. between adjacent spinous or transverse processes devices implanted between spinous or transverse processes A61B17/7062
• CPC Class Codes: A61F 2/442 Intervertebral or spinal discs, e.g. resilient non-disc-shaped intervertebral inflatable pockets A61F2/441; non-disc-shaped intervertebral fusion implants A61F2/4455
• CPC Class Codes: A61F 2002/30461 sutured, ligatured or stitched
• CPC Class Codes: A61F 2002/30462 retained or tied with a rope, string, thread, wire or cable
• CPC Class Codes: A61F 2002/30777 Oblong apertures
• CPC Class Codes: A61F 2002/30785 parallel
• CPC Class Codes: A61F 2002/3083 inclined obliquely with respect to each other
• CPC Class Codes: A61F 2002/30884 : Fins or wings, e.g. longitudinal wings for preventing rotation within the bone cavity
• CPC Class Codes: A61F 2002/30902 : laterally or radially
• CPC Class Codes: A61F 2002/3822 : Humeral components
• CPC Class Codes: A61F 2002/3831 : Ulnar components
• CPC Class Codes: A61F 2002/4018 : Heads or epiphyseal parts of humerus
• CPC Class Codes: A61F 2002/4029 : Necks
• CPC Class Codes: A61F 2002/4066 : for replacement or reinforcement of the greater tubercle
• CPC Class Codes: A61F 2002/4205 : Tibial components
• CPC Class Codes: A61F 2002/4212 : Tarsal bones
• CPC Class Codes: A61F 2002/4271 : Carpal bones
• CPC Class Codes: A61F 2220/0075 : sutured, ligatured or stitched, retained or tied with a rope, string, thread, wire or cable

Abstract

A bone plate has a plurality of line locks arranged along its length. Each of the line locks has a plurality of passageways designed to receive the ends of a flexible line such that one or both of the ends can be drawn through the line lock along only one direction. The lines may encircle the bone fragments to be set to keep them in place. The line locks enable the lines to be easily tightened and re-tightened as needed. A bone prosthesis has a line lock having a plurality of passageways designed to receive one or both ends of a flexible line such that one or both ends can be drawn through the line along only one direction. The line can then be used to secure the bone prosthesis to one or more bones. The bone prosthesis may be a joint prosthesis or the like.

Claims

1. A system for securing a bone and a tissue together, the system comprising:

an implant selected from the group consisting of a bone prosthesis and a bone plate, the implant comprising;

a bone engagement portion comprising a surface shaped to abut the bone; and

a first line lock portion comprising a plurality of passageways arranged to receive a first locking portion of a first flexible member such that the first locking portion is able to be drawn through the first line lock portion substantially only along a first direction.

2. The system of claim 1, wherein the tissue is selected from the group consisting of a tendon, a ligament, and a second bone.

3. The system of claim 1, wherein the implant is selected form the group consisting of a bone plate, a femoral component of a hip prosthesis, an acetabular component of a hip prosthesis, a femoral component of a knee prosthesis, a tibial component of a knee prosthesis, a humeral component of a shoulder prosthesis, a glenoid component of a shoulder prosthesis, a humeral component of an elbow prosthesis, an ulnar component of an elbow prosthesis, a radial component of a wrist prosthesis, a carpal component of a wrist prosthesis, a tibial component of an ankle prosthesis, a tarsal component of an ankle prosthesis, a total disc replacement, and a facet joint replacement.

4. The system of claim 1, wherein the implant further comprises a tissue engagement portion shaped to abut the tissue.

5. The system of claim 1, further comprising the flexible member, the flexible member comprising a cable formed of metal.

6. The system of claim 1, further comprising the flexible member, the flexible member formed of polymer.

7. The system of claim 1, wherein the first line lock portion is further configured to receive a second locking portion of the first flexible member such that the second locking portion is able to be drawn through the first line lock portion substantially only along a second direction.

8. The system of claim 7, wherein the first line lock portion comprises first, second, and third substantially bounded passageways, wherein the second substantially bounded passageway is between the first and third substantially bounded passageways and is shaped to receive both the first locking portion and the second locking portion.

9. The system of claim 1, wherein the implant further comprises a second line lock portion configured to receive a second locking portion of a second flexible member such that the second locking portion is able to be drawn through the second line lock portion substantially only along a second direction, wherein the second line lock portion is spaced apart from the first line lock portion.

10. The system of claim 1, wherein the plurality of passageways comprises two substantially bounded passageways arranged to receive the first locking portion such that, in response to tension tending to draw the first locking portion against the first direction, a compression section of the first locking portion presses a compressed section of the first locking portion against the first line lock portion.

11. The system of claim 1, wherein the first line lock portion is configured to lock a position of the first locking portion with respect to the first line lock portion independently of motion of any component, aside from the first flexible member, with respect to the first line lock portion.

12. The system of claim 1, wherein the bone engagement portion is shaped to abut an exterior surface of the bone.

13. The system of claim 1, wherein the bone engagement portion is shaped to be embedded within the bone to abut an interior surface of the bone.

14. A system for securing a bone and a tissue together, the system comprising:

an implant selected from the group consisting of a bone prosthesis and a bone plate, the implant comprising;

a bone engagement portion comprising a surface shaped to abut the bone; and

a first line lock portion comprising at least two substantially bounded passageways that cooperate to define a first pathway shaped such that a first locking portion of a flexible member extending along the first pathway will have a compression section and a compressed section, the compressed section extending between the compression section and the first line lock portion such that, in response to tension in the first locking portion, the compressed section will be pressed against the first line lock portion by the compression section.

15. The system of claim 14, wherein the tissue is selected from the group consisting of a tendon, a ligament, and a second bone, wherein the implant is selected form the group consisting of a bone plate, a femoral component of a hip prosthesis, an acetabular component of a hip prosthesis, a femoral component of a knee prosthesis, a tibial component of a knee prosthesis, a humeral component of a shoulder prosthesis, a glenoid component of a shoulder prosthesis, a humeral component of an elbow prosthesis, an ulnar component of an elbow prosthesis, a radial component of a wrist prosthesis, a carpal component of a wrist prosthesis, a tibial component of an ankle prosthesis, a tarsal component of an ankle prosthesis, a total disc replacement, and a facet joint replacement.

16. The system of claim 14, wherein the first line lock portion is further configured to receive a second locking portion of the first flexible member such that the second locking portion is able to be drawn through the first line lock portion substantially only along a second direction, wherein the first line lock portion comprises first, second, and third substantially bounded passageways, wherein the second substantially bounded passageway is between the first and third substantially bounded passageways and is shaped to receive both the first locking portion and the second locking portion.

17. The system of claim 14, wherein the implant further comprises a second line lock portion configured to receive a second locking portion of a second flexible member such that the second locking portion is able to be drawn through the second line lock portion substantially only along a second direction, wherein the second line lock portion is spaced apart from the first line lock portion.

18. A method for securing a bone and tissue together, the method comprising:

abutting the bone with a bone engagement portion of an implant selected from the group consisting of a bone prosthesis and a bone plate;

positioning a first flexible member to secure the tissue to the implant; and

locking a position of a first locking portion of the first flexible member with respect to a first line lock portion of the implant in response to routing the first locking portion through a plurality of passageways of the first line lock portion.

19. The method of claim 18, further comprising routing the first locking portion through the plurality of passageways.

20. The method of claim 18, further comprising abutting the tissue with a tissue engagement portion of the implant.

21. The method of claim 18, further comprising locking a position of a second locking portion of the first flexible member with respect to the first line lock portion in response to routing the second locking portion through the plurality of passageways of the first line lock portion.

22. The method of claim 18, further comprising locking a position of a second locking portion of a second flexible member with respect to a second line lock portion of the implant in response to routing the second locking portion through a plurality of passageways of the second line lock portion, wherein the second line lock portion is spaced apart from the first line lock portion.

23. The method of claim 18, wherein locking the position of the first locking portion with respect to the first line lock portion comprises pressing a compressed section of the first locking portion against the first line lock portion with a compression section of the first locking portion.

24. The method of claim 18, wherein abutting the bone with the bone engagement portion comprises abutting an exterior surface of the bone with the bone engagement portion.

25. The method of claim 18, abutting the bone with the bone engagement portion comprises embedding the bone engagement portion within the bone to abut an interior surface of the bone.