Surgical rod bender

Patent metadata

Field	Value
Publication number	US-11642157-B2
Application number	US-202117370520-A
Country	US
Kind code	B2
Filing date	Jul 8, 2021
Priority date	Apr 12, 2016
Publication date	May 9, 2023
Grant date	May 9, 2023

Abstract

An instrument for bending a surgical rod includes first and second arm assemblies. The first arm assembly includes first and second arms having respective first and second receiving portions configured to receive the surgical rod therein. The second arm assembly includes third and fourth arms having respective third and fourth receiving portions configured to receive the surgical rod therein. The instrument is reconfigurable from an initial configuration in which the first and third receiving portions of the respective first and third arms engage the surgical rod such that spreading of the first and third receiving portions in a first direction bends the surgical rod in a first orientation and spreading of the first and third receiving portions in a second direction bends the surgical rod in a second orientation opposite to the first orientation.

First claim

What is claimed is:

1. A method of use, comprising:
providing an instrument for bending a surgical rod including:
a first arm assembly including a first handle and a first arm extending from the first handle, the first arm having a first receiving portion, a first bend and a first plurality of teeth along the first bend; and
a second arm assembly including a second handle and a second arm extending from the second handle, the second arm having a second receiving portion, a second bend and a second plurality of teeth along the second bend, the first bend and second bend being detachably associated with each other;

engaging the first receiving portion of the first arm and the second receiving portion of the second arm with the surgical rod; and
bending the surgical rod through the engagement of the first plurality of teeth with the second plurality of teeth such that approximating the first and second handles in a first direction bends the surgical rod in a first orientation and approximating the first and second handles in a second direction different from the first direction bends the surgical rod in a second orientation different to the first orientation.

2. The method according to claim 1 , wherein bending the surgical rod includes approximating the first and second handles towards each other to create a convex profile in the surgical rod.

3. The method according to claim 1 , wherein bending the surgical rod includes approximating the first and second handles away from each other to create a concave profile in the surgical rod.

4. The method according to claim 1 , wherein engaging the first and second receiving portions of the respective first and second arms with the surgical rod includes placing the first and second receiving portions of the respective first and second arm assemblies in planar contact.

5. The method according to claim 1 , wherein bending the surgical rod includes approximating the first handle in a third direction relative to the second handle and approximating the first receiving portion in a fourth direction relative to the second receiving portion, the first direction being opposite the second direction.

6. The method according to claim 1 , further comprising engaging a third arm to the first arm assembly and a fourth arm to the second arm assembly, the third arm having a third receiving portion at a first end of the third arm and the fourth arm having a fourth receiving portion at a first end of the fourth arm.

7. The method according to claim 6 , wherein the third arm is engaged to the first arm assembly and the fourth arm is engaged to the second arm assembly such that the third arm is at least partially received within the fourth arm.

8. The method according to claim 6 , wherein bending the surgical rod includes rotating the third arm relative to the fourth arm.

9. The method according to claim 6 , wherein engaging the third arm to the first arm assembly and the fourth arm to the second arm assembly includes engaging a connecting portion of the third arm to a hinge portion of the first arm assembly and a connecting portion of the fourth arm to a hinge portion of the second arm assembly, the connecting portions of the third arm and fourth arm being opposite the respective first ends.

10. The method according to claim 9 , wherein engaging the connecting portion of the third arm to the hinge portion of the first arm assembly includes engaging the connecting portion of the third arm to lie substantially along a same direction as the first handle of the first arm, and engaging the connecting portion of the fourth arm to the hinge portion of the second arm assembly includes engaging the connecting portion of the fourth arm to lie substantially along a same direction as the second handle of the second arm.

11. A method of use, comprising:
engaging a first receiving portion of a first arm of a first arm assembly of a surgical instrument with a surgical rod;
engaging a second receiving portion of a second arm of a second arm assembly of the surgical instrument with the surgical rod;
approximating the surgical instrument to bend the surgical rod by engaging a first plurality of teeth of a first bend of the first arm and a second plurality of teeth of a second bend of the second arm to bend the surgical rod such that approximating a first handle of the first arm and a second handle of the second arm in a first direction bends the surgical rod in a first orientation, and approximating the first handle and the second handle in a second direction different than the first direction bends the surgical rod in a second orientation different than the first orientation, the first bend and the second bend being detachably associated with each other.

12. The method according to claim 11 , wherein approximating the surgical instrument includes approximating the first and second handles towards each other to create a convex profile in the surgical rod.

13. The method according to claim 11 , wherein approximating the surgical instrument includes approximating the first and second handles away from each other to create a concave profile in the surgical rod.

14. The method according to claim 11 , wherein engaging the first and second receiving portions of the respective first and second arms with the surgical rod includes placing the first and second receiving portions of the respective first and second arm assemblies in planar contact.

15. The method according to claim 11 , wherein approximating the surgical rod includes approximating the first handle in a third direction relative to the second handle and approximating the first receiving portion in a fourth direction relative to the second receiving portion, the first direction being opposite the second direction.

16. The method according to claim 11 , further comprising engaging a third receiving portion at a first end of a third arm to the first arm assembly and a fourth receiving portion at a first end of a fourth arm to the second arm assembly.

17. The method according to claim 16 , wherein the third arm is engaged to the first arm assembly and the fourth arm is engaged to the second arm assembly such that the third arm is at least partially received within the fourth arm.

18. The method according to claim 16 , wherein approximating the surgical instrument includes moving the third arm within the fourth arm.

19. The method according to claim 16 , wherein engaging the third arm to the first arm assembly and the fourth arm to the second arm assembly includes engaging a connecting portion of the third arm to a hinge portion of the first arm assembly and a connecting portion of the fourth arm to a hinge portion of the second arm assembly, the connecting portions of the third arm and fourth arm being opposite the respective first ends.

20. A method comprising:
placing a first portion of a rod in a first receiving portion of a first arm assembly;
placing a second portion of the rod in a second receiving portion of a second arm assembly;
grasping a first handle of the first arm assembly;
grasping a second handle of the second arm assembly;
engaging a first plurality of teeth of a first bend of the first arm assembly with a second plurality of teeth of a second bend of the second arm assembly;
moving the first and second handles to bend the rod, wherein moving the handles in a first direction bends the surgical rod in a first orientation and moving the handles in a second direction different from the first direction bends the surgical rod in a second orientation diff

Assignees

• K2M Inc

Inventors

• Schwab Frank
• Choi Theo
• Ark Timmon

Classifications

• A61B17/7001

  Screws or hooks combined with longitudinal elements which do not contact vertebrae (A61B17/7058 takes precedence) · CPC title

• B21F1/002

  by means of manually operated devices, e.g. pliers · CPC title

• B21F45/008

  of medical instruments, e.g. stents or corneal rings · CPC title

• A61B17/8863 Primary

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

• A61B17/7011 Primary

  Longitudinal element being non-straight, e.g. curved, angled or branched (adjustable length longitudinal elements A61B17/7014; A61B17/7019 takes precedence, e.g. coil springs) · CPC title