Wire clamp assembly

• US 6,120,505 A
• Filed: 09/21/1998
• Issued: 09/19/2000
• Est. Priority Date: 06/01/1995
• Status: Expired due to Term

• Current Assignee: Acumed Llc (Berkshire Hathaway Incorporated)
• Original Assignee: Acumed Llc (Berkshire Hathaway Incorporated)
• Inventors: Huebner, Randall J.
• Primary Examiner(s): Buiz, Michael
• Assistant Examiner(s): Woo, Julian W.
• Application Number:
  US09/157,783
• Time in Patent Office: 729 Days
• Field of Search: 606/69, 606/70, 606/71, 606/72, 606/74, 606/75, 606/103, 24/129 W
• US Class Current: 606/74
• 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

Abstract

A wire locking sleeve and a wire. The sleeve has a bore and a deformation recess adjacent the bore. The sleeve around the bore is deformable toward the recess into a serpentine configuration for interlockingly engaging a portion of the wire disposed therein. Deformation of the sleeve around the bore is achieved by applying a transverse compressive force to the sleeve.

Claims

1. A system for securing a wire comprising a monolithic securing member having a first bore formed therein with a portion of the wire being disposed in the first bore and a second bore formed therein with a second portion of the wire being disposed in the second bore, the monolithic securing member further having a deformation recess disposed proximal to the first bore in a crimp zone, the wire and first bore being locally deformed transverse to a first elongate axis of the wire in a sinuous shape toward the deformation recess in the crimp zone to interlock the wire in the first bore.

2. The system of claim 1, wherein the deformation recess has an oblong shape.

3. The system of claim 2, wherein the deformation recess is centrally located in the securing member and extends more than half the length of the of the securing member.

4. The system of claim 1, wherein the deformation recess is a round opening, locally deformed in a region proximate the first bore.

5. The system of claim 1, wherein the deformation recess extends completely through the securing member to each of two opposing sides of the securing member.

6. The system of claim 1, wherein the securing member has at least two substantially parallel sides, each side being locally deformed in a respective region proximate the first bore.

7. The system of claim 1, wherein the securing member is a cylinder locally deformed in a region proximate the first bore.

8. The system of claim 1, wherein the wire is monofilament.

9. The system of claim 1, wherein the wire has a generally circular cross-section and the cross-section of the wire is relatively undisturbed in the crimp zone.

10. The system of claim 1, wherein the wire is stainless steel.

11. The system of claim 1, wherein the wire is work-hardened from being locally deformed.

12. The system of claim 1, the second portion of wire and second bore being locally deformed transverse to a second elongate axis of the wire in a sinuous shape toward the recess in the crimp zone to interlock the second portion of wire in the second bore.

13. The system of claim 12, wherein the deformation recess is located intermediate the first bore and the second bore.

14. The system of claim 12, wherein the first bore and the second bore are substantially parallel and each of the first bore and second bore is locally deformed towards the deformation recess.

15. The system of claim 12, wherein the securing member further includes a third bore for securing a central portion of the wire.

16. The system of claim 15, wherein the central portion of the wire is undeformed in the third bore.

17. The system of claim 15, wherein the third bore extends transverse to the first and second bore.

18. The system of claim 17, wherein the deformation extends through the securing member intermediate the first bore and the second bore, and bisects the third bore.

19. The system of claim 17, wherein the securing member is cylindrical and includes two opposing sides that are substantially parallel, each side being locally deformed in a respective region proximate the first bore or the second bore, and where the third bore extends between the two parallel opposing sides, and each of the first bore and the second bore extends between corresponding regions on a curved outer surface of the cylinder.

20. A system for securing a wire with a crimping tool, the system comprising:

a crimping sleeve including first and second wire-receiving bores extending at least partially into the crimping sleeve, a third wire-receiving bore extending through the crimping sleeve, and a deformation recess intermediate the first and second wire-receiving bores, the deformation recess being configured to at least partially collapse to facilitate deformation of the crimping sleeve; and

a wire including a central portion received by the third wire-receiving bore and a pair of end portions, each of the end portions being received by a respective one of the first and second wire-receiving bores;

wherein a portion of the crimping sleeve and the end portions of the wire received in the first and second wire-receiving bores each are configured to deform toward the deformation recess and interlock to secure the end portions in the crimping sleeve upon application of force to the crimping sleeve.

21. The system of claim 20 wherein the crimping sleeve further includes a crimp hole adjacent the first wire-receiving bore, the crimp hole being configured to receive a tip of a crimping tool, where a portion of the crimping sleeve is configured to deform into the deformation recess when force is applied through the crimping tool to the crimp hole.

22. The system of claim 21, wherein the crimp hole is a first crimp hole, and the crimping sleeve further includes a second crimp hole, located opposite the first crimp hole, and proximate the second wire-receiving bore, the second crimp hole being configured to receive a second tip of the crimping tool.

23. The system of claim 22, wherein the crimping sleeve is cylindrical.

24. The system of claim 23, wherein the third wire-receiving bore extends between two parallel surfaces of the cylinder.

25. The system of claim 24, wherein each of the first crimp hole and the second crimp hole is located on a respective one of the two parallel surfaces of the cylinder.

26. The system of claim 25, wherein each of the first wire-receiving bore and the second wire-receiving bore is located intermediate the first crimp hole and the second crimp hole, and extends through the sleeve in a direction transverse to a cylindrical axis of the crimping sleeve.

27. The system of claim 24, wherein the deformation recess extends through the crimping sleeve, transverse to the third wire-receiving bore and transverse to each of the first wire-receiving bore and the second wire-receiving bore.

28. The system of claim 21, wherein the first wire-receiving bore and second wire-receiving bore are located in parallel planes.

29. The system of claim 28, wherein the first wire-receiving bore and the second wire-receiving bore are parallel.

30. The system of claim 22, wherein each of the first wire-receiving bore and second wire-receiving bore is configured transverse to the third wire-receiving bore.

31. A device for securing a wire around a fractured bone with a jaw of a crimping tool, the device comprising:

a monolithic body including an outer surface, the body being formed of a bio-compatible material;

a first bore in the body, the first bore being configured to at least partially surround a first portion of the wire;

a second bore in the body, the second bore being configured to at least partially surround a second portion of the wire; and

an opening located proximate the first bore;

wherein, when the body is squeezed by the crimping tool, the opening is configured to at least partially collapse, a first portion of the body proximate the first bore is configured to deform into the opening, and the first bore is configured to form a concavity with the wire, thereby securing the wire within the first bore of the device.

32. The device of claim 31 further comprising:

a region of the outer surface defining a hole extending at least partially into the body, the hole being configured to receive a jaw of the crimping tool such that the crimping tool can deform the bore and the wire contained therein to secure the wire in the bore.

33. The device of claim 31, further comprising:

a region of the outer surface defining a hole that connects the outer surface to the bore and exposes the wire in the bore, the hole being configured to receive a jaw of the crimping tool such that the crimping tool can directly contact and deform the wire within the bore to secure the wire.

34. The device of claim 33, wherein a region of the body surrounding the first bore has a thickness of less than the diameter of the first bore.

35. The device of claim 33, wherein the opening extends at least across one-third the width of a top surface of the body.

36. The device of claim 33, wherein:

the bore is a first bore;

the portion of wire is a first portion of wire; and

the device further comprises a second bore spaced apart from the first bore, the second bore being configured to at least partially surround a second portion of wire;

wherein the opening lies intermediate the first bore and the second bore; and

wherein, upon deformation of the first portion of the body into the opening by the jaw of the crimping tool, a second portion of the body proximate the second bore is configured to deform into the opening and form a concavity with the second portion of wire, thereby securing the second portion of wire within the bore of the device.