IP Library › Granted Patent US 10,076,345
Granted Patent B2
US 10,076,345 · App. 15/683,433 · Granted Sep 18, 2018

Patellar clamping instrument

Inventors: Brian R. Harris (Cordova, TN); Rick W. Wright (St. Louis, MO)
A61B17/1767A61F2/461A61F2002/4622
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Quick Facts
Patent No.
US 10,076,345
App. No.
15/683,433
Granted
Sep 18, 2018
Kind
B2
Abstract

A patellar clamp and associated system and method for using the clamp are provided. A patellar clamp includes a pair of handles movably coupled together, a patella support portion connected to the pair of handles and configured to engage a first side of a patella, and a reamer guide configured to engage a second side of the patella. The patella support portion and the reamer guide each include a first pair of flanges configured to engage a first and second tendon associated with the patella. The reamer guide is configured to allow reaming and resurfacing the entire desired posterior articular surface of the patella in a single operation without readjusting the position of the reamer guide.

Claims (22)

1. A clamping instrument configured to engage a first and a second tendon associated with a patella of a patient comprising:

a pair of handles movably coupled together;

a patella support portion operatively connected to the pair of handles via a bottom clamping arm and configured to engage said patella, the patella support portion including a first pair of flanges each configured to engage said first and said second tendon associated with said patella; and

a reamer guide configured to engage a side of said patella, the reamer guide including a second pair of flanges each configured to engage said first and second tendons associated with said patella;

wherein the clamping instrument is configured to operably engage said first and second tendons associated with said patella between the first and second pairs of flanges by application of a squeezing motion to the pair of handles to bring each handle toward the other.

2. The clamping instrument of claim 1 , wherein the patella support portion includes a concave-shaped gripping region configured to engage a convex portion of said patella.

3. The clamping instrument of claim 2 , wherein the gripping region includes a textured surface treatment configured to grip said patella.

4. The clamping instrument of claim 1 , wherein the tendons are the quadriceps and patellar tendons.

5. The clamping instrument of claim 1 , wherein the reamer guide is detachably connected to the clamping instrument.

6. The clamping instrument of claim 1 , wherein said pair of handles are biased apart by a compression leaf spring.

7. The clamping instrument of claim 1 , further comprising a sliding top clamp arm which is slidable up and down on a reamer support column of said bottom clamping arm.

8. The clamping instrument of claim 7 , wherein said sliding top clamp arm is pivotably coupled to a lower handle of said pair of handles.

9. A system for clamping a first and a second tendon associated with a patella of a patient, comprising:

a patellar clamp, comprising:

a pair of handles movably coupled together; a patella support portion operatively connected to the pair of handles via a bottom clamping arm and configured to engage of said patella, the patella support portion including a first pair of flanges each configured to engage said first and said second tendon associated with said patella; and

a plurality of reamer guides, each reamer guide of said plurality having a different diameter than each other reamer guide of said plurality, wherein each reamer guide is configured to engage a second side of said patella, each reamer guide including a second pair of flanges configured to engage said first and second tendons associated with said patella.

10. The system of claim 9 , wherein each reamer guide of said plurality of reamer guides is detachably connectable to said patellar clamp via a reamer guide mounting bracket.

11. The system of claim 10 wherein said reamer guide mounting bracket comprises: a frontal opening communicating with an internal cavity configured to receive a portion of a reamer guide mounting stem; and a spring-loaded plunger assembly having an elongated plunger with an operating button and spring.

12. The system of claim 9 , said patellar clamp further comprising a sliding top clamp arm which is slidable up and down on a reamer support column of said bottom clamping arm.

13. The system of claim 12 wherein said sliding top clamp arm is pivotably coupled to a lower handle of said pair of handles.

14. The system of claim 13 wherein the patella support portion includes a concave-shaped gripping region configured to engage a convex portion of said patella.

15. The system of claim 14 wherein the gripping region includes a textured surface treatment configured to enhance gripping said patella.

Continuity (4)
Continuation 15180047 · Jun 12, 2016
Division 13918429 · Jun 14, 2013
Provisional Application 61660250 · Jun 15, 2012
Related Publication 20170348012A1 · Dec 7, 2017
Cited By (1)
US 12,274,457