Fracture fixation system and method

Patent metadata

Field	Value
Publication number	US-11857232-B2
Application number	US-202117180019-A
Country	US
Kind code	B2
Filing date	Feb 19, 2021
Priority date	Jun 24, 2019
Publication date	Jan 2, 2024
Grant date	Jan 2, 2024

Abstract

A fracture fixation system includes a plate having a laterally extending bore passing therethrough and configured to receive a first wire when the plate is placed in contact with a bone. The plate has a recess for receiving and securing a first end of a first wire, and includes an entry hole and an exit hole to at opposite ends of a first bore to allow the first wire to pass through the plate. A screw is configured to capture said the wire in the first bore to maintain a desired tension on the first wire.

First claim

What is claimed is:

1. A fracture fixation system comprising:
a plate having a laterally extending bore passing therethrough, the laterally extending bore configured to receive a first wire when the plate is placed in contact with a bone;
said plate having a recess for receiving and securing a first end of said first wire;
said plate comprising an entry hole and an exit hole to at opposite ends of a first bore to allow said first wire to pass through said plate; and
a screw to capture said first wire in said first bore to maintain a desired tension on said first wire,
a tightener configured to provide tension to the first wire, said tightener comprising a post configured to be received in a post hole of said plate and a cross bore configured to allow the first wire to pass therethrough such that the tightener may be rotated in the post hole to tighten the first wire around the tightener.

2. The system of claim 1 wherein said first bore is a first bore of a plurality of laterally extending bores passing through said plate and said first wire is a first wire of plurality of a wires passing through said plurality of bores to connect said plate to the bone to hold the bone.

3. The system of claim 1 further comprising a second plate located on an opposite side of the bone and having a second bore configured to allow the first wire to pass therethrough to secure the first plate and the second plate to the bone when the wire is tightened.

4. The system of claim 1 wherein said tightener comprises a lower end and a driving end threadingly engageable with each other such that said driving end is threaded into a cavity of said lower end.

5. The system of claim 4 wherein said lower end comprises a bore entry and a bore exit bounding said cross bore.

6. The system of claim 5 further comprising a bushing between said lower end and said driving end to hold said first wire in said cross bore and to inhibit movement of said first wire in said cross bore.

7. The system of claim 6 wherein said bushing imparts a clamping linear force on said first wire when said lower end threadingly engages said driving end.

8. The system of claim 1 wherein said plate comprises a first portion comprising said plurality of laterally extending bores and a second portion comprising a plurality of openings receiving a plurality of screws to connect said plate to the bone.

9. A method of cerclage fixation comprising:
aligning opposing portions of a fractured bone to set the bone;
placing a plate on the fractured bone;
attaching a first end of a wire to the plate and passing the wire around the bone;
passing the wire through a bore of the plate from an entry hole to an exit hole;
tightening the wire to apply tension to the bone; and
securing a second end of the wire to the plate;
wherein the tightening comprises passing said wire through a cross bore of a tightener having an end received in a post hole of said plate and rotating said tightener to provide a tension to said wire.

10. The method of claim 9 wherein said bore is a first bore of a plurality of laterally extending bores passing through said plate and further comprising connecting ends of a plurality of other wires to said plate, passing said other wires through said plurality of laterally extending bores and connecting opposite ends of said plurality of other wires to said plate to secure the bone.

11. The method of claim 9 wherein attaching said first ends of said wire comprises inserting said first wire in a recess of said plate and connecting said second end comprises connecting said second end to said plate using a screw.

12. The method of claim 9 wherein said tightener comprises comprises a lower end and a driving end threadingly engageable with each other such that said driving end is threaded into a cavity of said lower end.

13. The method of claim 12 wherein said tightener comprise a a bushing between said lower end and said driving end, and further comprising engaging said driving end to said lower end to hold said wire in a bushing between said lower end and said driving end to movement of said first wire in said cross bore.

14. The method of claim 1 wherein the passing the wire around the bone comprises passing the wire through a second bore of a second plate on an opposite side of the bone relative to the plate.

15. The method of claim 1 further comprising securing the plate to the bone by a screw through an opening in said plate.

Assignees

• Nextremity Solutions Inc
• Medartis Ag

Inventors

• Weiner Lon S
• Pepper John R
• Katchis Stuart D
• Schlotterback Ryan

Classifications

• A61B17/82 Primary

  for bone cerclage {(apparatus for manipulating wires or straps A61B17/8861; wires, bands or straps other than cerclage A61B17/842)} · CPC title

• A61B17/80 Primary

  Cortical plates {, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates} · CPC title

• A61B17/808

  Instruments for holding or positioning bone plates, or for adjusting screw-to-plate locking mechanisms · CPC title

• A61B17/8061

  specially adapted for particular bones (A61B17/70 and A61B17/74 take precedence) · CPC title

• A61B17/842

  Flexible wires, bands or straps (A61B17/72, A61B17/82, A61B17/86 take precedence) · CPC title