Placement of fasteners into bone

• US 7,578,825 B2
• Filed: 04/19/2005
• Issued: 08/25/2009
• Est. Priority Date: 04/19/2004
• Status: Active Grant

• Current Assignee: Acumed Llc (Berkshire Hathaway Incorporated)
• Original Assignee: Acumed Llc (Berkshire Hathaway Incorporated)
• Inventors: Huebner, Randall J.
• Primary Examiner(s): Barrett; Thomas C
• Assistant Examiner(s): Yang; Andrew
• Application Number:
  US11/109,984
• Publication Number:
  US 20050234472A1
• Time in Patent Office: 1,589 Days
• Field of Search: 606/61, 606 69- 71, 606280-299
• US Class Current: 606/104
• 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 17/80 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 17/8057 the interlocking form comprising a thread
• CPC Class Codes: A61B 17/8061 specially adapted for particular bones A61B17/70 and A61B17/74 take precedence

Abstract

System, including methods, apparatus, and kits, for retrograde placement of fasteners into bone.

Claims

1. A method of coupling a fastener to a bone plate defining a plurality of openings, comprising:

attaching the bone plate to a bone;

forming a guide path by placing a wire through the bone from an opening of the attached bone plate;

placing the fastener along the guide path in an opposing direction relative to the step of forming a guide path; and

locking a leading region of the fastener to the attached bone plate at the opening,

wherein the fastener has a stop structure formed proximal to the leading region, and wherein the step of locking a leading region of the fastener includes a step of advancing the leading region into the opening of the bone plate until the stop structure engages the bone plate and restricts further advancement of the fastener.

2. The method of claim 1, wherein the step of attaching the bone plate includes a step of attaching the bone plate to the bone with one or more threaded fasteners.

3. The method of claim 1, wherein the step of attaching the bone plate includes a step of attaching the bone plate to a radius bone.

4. The method of claim 3, wherein the step of placing the fastener includes a step of placing the fastener through a styloid fragment of the radius bone.

5. The method of claim 1, wherein the opening includes an internal thread, and wherein the step of locking disposes the leading region of the fastener in threaded engagement with the internal thread.

6. The method of claim 1, the guide path having a length through the bone, the method further comprising:

determining the length of the guide path; and

selecting the fastener based on the length for use in the step of placing the fastener.

7. The method of claim 1, wherein the step of attaching the bone plate includes a step of placing one or more bone screws into the bone from one or more of the openings.

8. The method of claim 1, further comprising a step of forming a hole in the bone in the opposing direction using the wire as a guide, wherein the step of placing the fastener along the guide path includes a step of placing the fastener into the hole.

9. A method of directing a fastener to a bone plate defining a plurality of openings, comprising:

attaching the bone plate to a bone;

forming a guide path by placing a wire through the bone from an opening of the attached bone plate;

forming a hole in the bone along the wire in an opposing direction relative to the step of forming a guide path;

placing the fastener into the hole in the opposing direction; and

coupling a leading region of the fastener to the attached bone plate by engagement of the fastener with the bone plate at the opening,

wherein the fastener has a stop structure formed proximal to the leading region, and wherein the step of coupling a leading region of the fastener includes a step of advancing the leading region into the opening of the bone plate until the stop structure engages the bone plate and restricts further advancement of the fastener.

10. The method of claim 9, wherein the stop structure is a shoulder.

11. The method of claim 9, wherein the step of attaching the bone plate includes a step of attaching the bone plate to a radius bone adjacent a distal volar surface region of the radius bone.

12. The method of claim 9, wherein the opening includes an internal thread, and wherein the step of coupling a leading region of the fastener disposes the leading region in threaded engagement with the internal thread.

13. The method of claim 9, wherein the guide path has a length through the bone, the method further comprising:

determining the length of the guide path; and

selecting the fastener based on the length.

14. The method of claim 9, wherein the step of attaching the bone plate includes a step of placing one or more bone screws into the bone from one or more of the openings.

15. A method of coupling a fastener to a bone plate defining a plurality of openings, comprising:

attaching the bone plate to a radius bone adjacent a volar surface region of the radius bone;

placing a wire through the radius bone from an opening of the attached bone plate, to define an axis;

placing the fastener along the axis in an opposing direction relative to the step of placing a wire; and

locking a leading region of the fastener to the attached bone plate at the opening,

wherein the fastener has a stop structure formed proximal to the leading region, and wherein the step of locking a leading region of the fastener includes a step of advancing the leading region into the opening of the bone plate until the stop structure engages the bone plate and restricts further advancement of the fastener.

16. The method of claim 15, wherein the step of attaching the bone plate includes a step of attaching the bone plate to the radius bone with one or more bone screws.

17. The method of claim 15, wherein the step of placing a wire includes a step of placing the wire into the radius bone from a volar surface position of the radius bone such that the wire exits the radius bone at a dorsal surface position of the radius bone.

18. The method of claim 15, wherein the step of placing the fastener includes a step of placing the fastener through a styloid fragment of the radius bone.

19. The method of claim 15, wherein the step of placing the fastener includes a step of placing the fastener into a hole formed in the opposing direction along the wire.

20. The method of claim 15, wherein the step of attaching the bone plate includes a step of placing one or more bone screws into the radius bone from one or more of the openings.