Targeting guide assembly

Patent metadata

Field	Value
Publication number	US-2016367270-A1
Application number	US-201514740631-A
Country	US
Kind code	A1
Filing date	Jun 16, 2015
Priority date	Jun 16, 2015
Publication date	Dec 22, 2016
Grant date	—

Abstract

This disclosure relates to a targeting guide assembly for positioning a surgical instrument. The targeting guide assembly is used to accurately place a surgical instrument for establishing a precise path for subsequent screw placement, retrograde drilling, etc. A targeting guide assembly according to an exemplary aspect of the present disclosure includes, among other things, a first bracket, a second bracket rotatable relative to the first bracket and a cannula guide body movable within a slot of the first bracket.

First claim

What is claimed is:

1 . A targeting guide assembly, comprising:
a first bracket; a second bracket rotatable relative to said first bracket; and a cannula guide body movable within a slot said first bracket.

2 . The assembly as recited in claim 1 , comprising a knob that rotatably connects said second bracket to said first bracket.

3 . The assembly as recited in claim 1 , wherein said first bracket includes a first arm and a second arm spaced from said first arm, and said slot extends between said first arm and said second arm.

4 . The assembly as recited in claim 3 , wherein said first arm includes a track configured to guide movement of said cannula guide body.

5 . The assembly as recited in claim 4 , wherein said cannula guide body includes a boss that extends into said track.

6 . The assembly as recited in claim 1 , wherein said cannula guide body is movable along a curvilinear path within said slot.

7 . The assembly as recited in claim 1 , comprising a knob mounted to said cannula guide body, said knob protruding outwardly from said slot.

8 . The assembly as recited in claim 1 , comprising a cannula received within a bore of said cannula guide body.

9 . The assembly as recited in claim 8 , comprising a cannula sleeve received within said cannula.

10 . The assembly as recited in claim 9 , comprising a guidewire received through said cannula sleeve.

11 . The assembly as recited in claim 1 , comprising a ratchet received within a recessed opening of said cannula guide body.

12 . The assembly as recited in claim 11 , wherein said ratchet includes a first engagement feature adapted to engage a second engagement feature of a cannula received within said cannula guide body.

13 . The assembly as recited in claim 12 , wherein one of said first engagement feature and said second engagement feature is a recess and the other of said first engagement feature and said second engagement feature is a tooth.

14 . The assembly as recited in claim 1 , comprising an indicator probe received through a bore of said second bracket.

15 . The assembly as recited in claim 14 , comprising a knob configured to lock a positioning of said indicator probe within said bore.

16 . A surgical method, comprising:
positioning an indicator probe of a targeting guide assembly at a first location of a joint; positioning a cannula of the targeting guide assembly at a second location relative to the joint such that the cannula is aligned to establish a desired trajectory toward the indicator probe, the step of positioning the cannula including moving a cannula guide body in a slot of the targeting guide assembly; and inserting a surgical instrument through the cannula along the desired trajectory.

17 . The method as recited in claim 16 , wherein the step of moving includes sliding the cannula guide body along a curvilinear path established by the slot.

18 . The method as recited in claim 16 , wherein the step of positioning the indicator probe includes moving a second bracket of the targeting guide assembly relative to a first bracket.

19 . The method as recited in claim 16 , wherein the step of positioning the cannula includes ratcheting the cannula up or down relative to the cannula guide body.

20 . The method as recited in claim 16 , wherein the surgical instrument is a guidewire and the inserting step includes moving the guidewire along the desired trajectory until it contacts a tip of the indicator probe.

Assignees

• Arthrex Inc

Inventors

• Garlock Adam
• Choinski Ronald J
• Gulvas Jerome
• Day Zachary

Classifications

• A61B17/88

  Osteosynthesis instruments;} Methods or means for implanting or extracting internal {or external} fixation devices {(A61B17/7074 takes precedence) · CPC title

• A61B17/1739 Primary

  specially adapted for particular parts of the body · CPC title

• A61B2017/1775

  Human Necessities · mapped topic

• A61B2017/90

  Human Necessities · mapped topic

• A61B17/90

  Guides therefor · CPC title