Surgical rod scorer and method of use of the same

Patent metadata

Field	Value
Publication number	US-10675077-B2
Application number	US-201815910468-A
Country	US
Kind code	B2
Filing date	Mar 2, 2018
Priority date	Oct 14, 2009
Publication date	Jun 9, 2020
Grant date	Jun 9, 2020

Abstract

A surgical rod scorer is provided. The surgical rod scorer includes a pair of elongated shaft members that are pivotably coupled to one another and movable from a spaced-apart configuration to an approximated configuration. Each of the shaft members includes a handle member that is configured for gripping by a user and jaw member that is configured to support respective first and second cutting assemblies thereon. The first and second cutting assemblies each include one or more cutting elements thereon configured and dimensioned to score surgical rod when the jaw members are in the approximated configuration and rotated about the surgical rod.

First claim

The invention claimed is:

1. A surgical rod scorer, comprising:
a handle having a shaft extending therefrom and defining a longitudinal axis;
a knob supported on a proximal end of the handle and rotatable about the longitudinal axis;

an operable head removably coupled to a distal end of the shaft configured to support a first cutting assembly thereon, the operable head having an opening configured for receiving a surgical rod therethrough;
a reciprocating member operably disposed and axially translatable within the handle, the reciprocating member including a proximal end operably coupled with the knob and a distal end supporting a second cutting assembly thereon; and
a drive member operably coupling the proximal end of the reciprocating member to the knob, wherein rotation of the knob about the longitudinal axis translates the reciprocating member between a retracted position and an extended position, the second cutting assembly configured for scoring a surgical rod positioned in the opening with the reciprocating member in the extended position.

2. The surgical rod scorer of claim 1 , wherein the first and second cutting assemblies are oriented in a common plane along a centerline of the surgical rod scorer.

3. The surgical rod scorer of claim 1 , wherein a guide member is disposed on an interior surface of the handle and is configured to couple to a slot disposed on the reciprocating member, the guide member movable within the slot to align the reciprocating member with respect to the handle.

4. The surgical rod scorer according to claim 1 wherein a rod extends from the knob and is operably coupled to the drive member such that the knob is axially stationary with respect to the longitudinal axis.

5. The surgical rod scorer according to claim 4 , wherein a portion of the rod is threaded.

6. The surgical rod scorer of claim 5 , wherein the proximal ends of the reciprocating member and the handle include openings for receiving the rod therethrough.

7. The surgical rod scorer of claim 6 , wherein the rod includes an annular flange disposed thereon, the annular flange positioned in a cavity between the opening and the proximal end of the reciprocating member and the opening at the proximal end of the handle, the annular flange maintaining the knob in a fixed position along the longitudinal axis.

8. The surgical rod scorer of claim 1 , wherein each of the first and second cutting assemblies includes a plurality of cutting wheels rotatably seated within a corresponding plurality of bushings, the plurality of bushings facilitating rotation of the plurality of cutting wheels during rotation of the surgical rod scorer about a surgical rod.

9. The surgical rod scorer according to claim 1 , wherein the first cutting assembly includes a first cutting wheel, and the second cutting assembly includes a second cutting wheel.

10. The surgical rod scorer according to claim 1 , wherein the operable head is locked to the handle when the reciprocating member is translated from the retracted position towards the extended position.

Assignees

• K2M Inc

Inventors

• Mcclintock Larry
• Strauss Kevin R
• Sandhu Faheem

Classifications

• A61B90/03

  Automatic limiting or abutting means, e.g. for safety · CPC title

• B26D3/08

  Making a superficial cut in the surface of the work without removal of material, e.g. scoring, incising · CPC title

• A61B17/8863 Primary

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

• B26B25/005

  Manually operated, e.g. pizza cutters · CPC title

• B26F3/002

  Precutting and tensioning or breaking · CPC title