Orthognathic bending pliers

Patent metadata

Field	Value
Publication number	US-9603647-B2
Application number	US-201614989598-A
Country	US
Kind code	B2
Filing date	Jan 6, 2016
Priority date	Oct 4, 2012
Publication date	Mar 28, 2017
Grant date	Mar 28, 2017

Abstract

A bending tool can be configured to bend an orthopedic implant and includes a first jaw assembly and a second jaw assembly. The first jaw assembly includes a first base and a first adjustment member that is movably coupled to the first base. The second jaw assembly is movably coupled to the second jaw assembly. The second jaw assembly includes a second base and a second adjustment member that is movably coupled to the second base.

First claim

What is claimed:

1. A bending tool that is configured to bend an orthopedic implant that includes a first implant portion and a second implant portion, the bending tool comprising:
a first jaw;
a second jaw spaced from the first jaw along a longitudinal direction, the second jaw being movably coupled to the first jaw such that the first and second jaws are movable with respect to each other along the longitudinal direction, wherein a gap is defined between the first and second jaws, the second jaw includes a first side and a second side that is spaced from the first side along a lateral direction that is substantially perpendicular to the longitudinal direction, the first side defines a first side surface, the second side defines a first lateral wall and a second lateral wall that is spaced from the first lateral wall along the lateral direction and a transverse direction that is substantially perpendicular to the longitudinal and lateral directions, a first distance is defined from the first side surface to the first lateral wall along the lateral direction, and a second distance is defined from the first side surface to the second lateral wall along the lateral direction; and
a roller that is configured to move along the first and second lateral walls along the longitudinal direction so as to apply a force to a portion of the orthopedic implant that is disposed outside the gap, thereby bending the orthopedic implant such that the first implant portion is offset relative to the second implant portion by an offset distance, the offset distance is substantially defined by the first distance when a portion of the orthopedic implant that is disposed in the gap is substantially aligned with the first lateral wall along the transverse direction or by the second distance when the portion of the orthopedic implant that is disposed in the gap is substantially aligned with the second lateral wall along the transverse direction.

2. The bending tool according to claim 1 , wherein the roller includes a first roller portion and a second roller portion that is coupled to and spaced from the first roller portion, the first roller portion defines a first cross-sectional dimension, the second roller portion defines a second cross-sectional dimension, and the first cross-sectional dimension is different from the second cross-sectional dimension.

3. The bending tool according to claim 2 , wherein the first roller portion is configured to move along the first lateral wall so as to apply the force to the portion of the orthopedic implant that is disposed outside the gap.

4. The bending tool according to claim 1 , wherein the roller is a first roller, and the bending tool further comprises a second roller that is configured to move along the first side surface so as to apply a force to another portion of the orthopedic implant that is disposed outside the gap.

5. The bending tool according to claim 4 , further comprising an actuation mechanism that is configured to drive to first roller and the second roller simultaneously along the first jaw and the second jaw along the longitudinal direction.

6. The bending tool according to claim 5 , wherein the actuation mechanism includes a first drive member that is coupled to the first roller, a second drive member that is coupled to the second roller, and a third drive member connected between the first and second drive members, and rotation of the third drive member about a rotation axis causes the first and second drive members to move simultaneously in opposite directions.

7. The bending tool according to claim 4 , wherein the first side surface is substantially planar, and the second roller defines a substantially constant cross-section.

8. The bending tool according to claim 1 , wherein the first and second jaws are configured to move relative to each other to apply a force to the portion of the orthopedic implant that is disposed in the gap, thereby holding the orthopedic implant with respect to the first and second jaws.

9. The bending tool according to claim 8 , wherein the second jaw is configured to move relative to the first jaw while the first jaw remains stationary.

10. The bending tool according to claim 9 , further comprising a tool body and an actuator movably coupled to the tool body, wherein the actuator is coupled to the second jaw such that moving the actuator relative to the tool body causes the second jaw to move relative to the first jaw.

11. The bending tool according to claim 1 , wherein the second jaw defines a plurality of stepped portions offset from each other along the transverse direction.

12. A method of bending an orthopedic implant with a bending tool, the method comprising:
positioning a portion of the orthopedic implant in an implant receiving gap that is defined between first and second jaws supported by a tool body of the bending tool, the first jaw being spaced from the second jaw along a longitudinal direction, the first jaw including at least one wall having a first side and a second side spaced from the first side by a first distance along a lateral direction that is substantially perpendicular to the longitudinal direction;
moving the first and second jaws relative to each other along the longitudinal direction from an open position to a closed position, such that the implant receiving gap defines 1) a first distance along the longitudinal direction in the open position, and 2) a second distance along the longitudinal direction in the closed position, wherein the second distance is less than the first distance along the longitudinal direction; and
moving a roller onto the orthopedic implant so as to urge the orthopedic implant against the second side, thereby causing a first portion of the orthopedic implant to be offset from a second portion of the orthopedic implant by an offset distance that is equal to or greater than the first distance along the lateral direction.

13. The method of claim 12 , wherein the roller is a first roller carried by the tool body, the method further comprises moving a second roller along the first side, and the second roller is carried by the tool body.

14. The method of claim 12 , wherein the at least one wall comprises a first wall, a second wall, and a third wall, wherein each of the first, second and third walls defines respective first and second sides and respective bending distances defined from the respective first side to the respective second side of the first, second, and third walls.

15. The method of claim 14 , wherein the first roller includes a first roller portion, a second roller portion, and a third roller portion that are spaced from one another along a transverse direction that is substantially perpendicular to the lateral and longitudinal directions, wherein the first roller portion defines a first cross-sectional dimension, the second roller portion defines a second cross-sectional dimension that is greater than the first cross-sectional dimension, and the third roller portion defines a third cross-sectional dimension that is greater than the first and second cross-sectional dimensions.

16. The method of claim 15 , wherein moving the first roller further comprises
rolling the first roller portion along the second side of the first wall;
rolling the second roller portion along the second side of the second wall; and
rolling the third roller portion along the second side of the third wall.

17. The method of claim 12 , wherein the first jaw further defines a plurality of stepped portions offset from each other along a transverse direction that is perpendicular to the longitudi

Assignees

• Depuy Synthes Products Inc

Inventors

• Koch Roger
• Schoutens Robert J

Classifications

• A61B17/8861

  Apparatus for manipulating flexible wires or straps (devices for inserting Kirschner wires A61B17/1697) · CPC title

• A61B17/8071

  for the jaw · CPC title

• A61B17/8863 Primary

  Apparatus for shaping or cutting osteosynthesis equipment by medical personnel · CPC title

• A61B17/8085

  with pliable or malleable elements or having a mesh-like structure, e.g. small strips (A61B17/8071, A61B17/8076 take precedence) · CPC title