Orthopedic connector system

• US 7,955,388 B2
• Filed: 10/30/2007
• Issued: 06/07/2011
• Est. Priority Date: 11/01/2006
• Status: Expired due to Fees

• Current Assignee: Acumed Llc (Berkshire Hathaway Incorporated)
• Original Assignee: Acumed Llc (Berkshire Hathaway Incorporated)
• Inventors: Jensen, David G., Horst, Steven P.
• Primary Examiner(s): Isabella; David
• Assistant Examiner(s): Hoffman; Marcia
• Application Number:
  US11/929,026
• Publication Number:
  US 20080177291A1
• Time in Patent Office: 1,316 Days
• Field of Search: 623/13.11, 623/13.13, 623 1315- 1316, 623/21.11, 623/21.14, 606/323, 606/300, 606/304, 606/301, 403/298, 403/303, 403/309, 403/314, 4033741-3744
• US Class Current: 623/13.14
• CPC Class Codes: A61B 17/68 Internal fixation devices , including fasteners and spinal fixators, even if a part thereof projects from the skin bone staples A61B17/0642
• CPC Class Codes: A61B 17/683 comprising bone transfixation elements, e.g. bolt with a distal cooperating element such as a nut
• CPC Class Codes: A61B 17/8685 comprising multiple separate parts

Abstract

System, including methods, apparatus and components thereof, and kits, for connecting to bone using an anchor element configured to be anchored in bone and having a selectively bendable hinge region. In some embodiments, the system may connect the anchor element to connective tissue, a bridge member, and/or to another anchor element by bending the hinge region while the anchor element is disposed in bone, thereby connecting bone to the connective tissue or bridge member, and/or connecting bone members.

Claims

1. An implantable orthopedic connector device, comprising:

an anchor element including an external thread adapted to be disposed in threaded engagement with bone by rotation of the anchor element about an axis and also including jaws, expansion members, and a hinge region, with the hinge region disposed at a position along the axis that is intermediate the expansion members and the jaws;

an actuation element; and

a bridge member,

wherein, with at least a section of the bridge member disposed between the jaws, the actuation element received by the anchor element urges the expansion members apart to bend the anchor element at the hinge region and urging the jaws toward one another and into gripping engagement with the bridge member, thereby fastening the anchor element to the bridge member.

2. The orthopedic connector device of claim 1, wherein the anchor element includes an internal thread, and wherein the actuation element includes an external thread configured to be disposed in threaded engagement with the internal thread of the anchor element.

3. The orthopedic connector device of claim 1, wherein the bridge member includes a rod sized to be received between the jaws.

4. The orthopedic connector device of claim 1, wherein the bridge member includes a wire sized to be received between the jaws.

5. The orthopedic connector device of claim 1, wherein the anchor element is a first anchor element, further comprising a second anchor element including bone-engaging structure and configured to be connected to the first anchor element via the bridge member.

6. The orthopedic connector device of claim 5, wherein the bridge member defines a long axis, and wherein the second anchor element is pivotable relative to the bridge member about the long axis when the anchor elements are connected via the bridge member.

7. The orthopedic connector device of claim 5, wherein the bone-engaging structure of the second anchor element includes an external thread.

8. The orthopedic connector device of claim 1, wherein the jaws, the hinge region, and the expansion members are formed by a same monolithic structure.

9. The orthopedic connector device of claim 1, wherein the anchor element becomes wider when the expansion members are urged apart.

10. The orthopedic connector device of claim 1, wherein the jaws, the hinge region, and the expansion members are formed by a same continuous structure.

11. The orthopedic connector device of claim 1, wherein the hinge region is configured to be deformed when the expansion members are urged apart.

12. An implantable orthopedic connector device, comprising:

a first anchor element and a second anchor element each including bone-engaging structure, the first anchor element defining an axis along which the first anchor element is configured to be advanced into bone and including jaws, expansion members, and a hinge region, with the hinge region disposed at a position along the axis that is intermediate the expansion members and the jaws;

an actuation element; and

a bridge member coupled to the second anchor element,

wherein, with at least a section of the bridge member disposed between the jaws, the actuation element received by the first anchor element urges the expansion members apart to bend the first anchor element at the hinge region and urging the jaws toward one another and into gripping engagement with the bridge member, thereby fastening the first anchor element to the bridge member and connecting the first and second anchor elements to one another via the bridge member.

13. The orthopedic connector device of claim 12, wherein the bridge member is connected pivotably to the second anchor element.

14. The orthopedic connector device of claim 12, wherein the second anchor element defines a passage that extends lengthwise through the second anchor element, and wherein the bridge member extends through the passage and is pivotable with respect to the second anchor element about a long axis defined by the passage.

15. The orthopedic connector device of claim 14, wherein the bridge member includes a stem and a head attached to the stem, and wherein the head is sized to block travel of the head through the passage.

16. The orthopedic connector device of claim 12, wherein the bridge member and the second anchor element are fixed relative to each other.

17. The orthopedic connector device of claim 12, wherein the bone-engaging structure of the second anchor element includes an external thread for threaded engagement with bone.

18. The orthopedic connector device of claim 17, wherein the bone-engaging structure of the first anchor element includes an external thread for threaded engagement with bone.

19. The orthopedic connector device of claim 18, wherein a portion of the external thread of the first anchor element is disposed on each expansion member.