Humeral fixation plate guides

Patent metadata

Field	Value
Publication number	US-2020237418-A1
Application number	US-201816649956-A
Country	US
Kind code	A1
Filing date	Oct 10, 2018
Priority date	Oct 11, 2017
Publication date	Jul 30, 2020
Grant date	—

Abstract

An anchor trajectory guide and methods of use thereof are provided. The guide includes a body that has a medial side. The medial side can be placed over a lateral side of a fixation plate. The anchor trajectory guide also includes a locator and a plurality of guide apertures. The locator is disposed on or through the medial side of the body. The locator can be mated with the fixation plate. The guide apertures are disposed through the body at positions corresponding to define anchor locations and orientations to provide good purchase adjacent to or in cortical bone around a medial side of a humerus.

First claim

1 . A bone anchor trajectory guide, comprising:
a body comprising a medial side configured to be placed over a lateral side of a fixation plate, the body comprising a distal portion and a proximal portion, the proximal portion having a reduced thickness compared to the distal portion; a locator disposed on or through the medial side of the body, the locator configured to mate with the fixation plate; and a plurality of guide apertures disposed through the body at positions corresponding to defined anchor locations and non-aligned orientations to provide good fixation in bone around a medial portion of a humerus.

2 . The bone anchor trajectory guide of claim 1 , wherein the defined anchor locations and orientations are pre-defined for a left or right side humerus.

3 . The bone anchor trajectory guide of claim 1 , wherein the defined anchor locations and orientations are for a pre-defined size of a humerus.

4 . The bone anchor trajectory guide of claim 1 , wherein the defined anchor locations and orientations are positioned at patient specific locations based on pre-operative imaging.

5 . The bone anchor trajectory guide of claim 1 , wherein the plurality of guide apertures comprises at least one anterior guide aperture with an anterior anchor trajectory and at least one posterior guide aperture with a posterior anchor trajectory, the anterior and posterior anchor trajectories diverging from each other along longitudinal axes thereof in a medial direction.

6 . The bone anchor trajectory guide of claim 1 , wherein trajectories of the plurality of guide apertures comprise splayed anchor trajectories.

7 . The bone anchor trajectory guide of claim 1 , further comprising a superior array of guide apertures, an inferior array of guide apertures, and central array of guide apertures.

8 . The bone anchor trajectory guide of claim 1 , further comprising a pin aperture oriented along a longitudinal axis disposed non-parallel to a longitudinal axis of the locator.

9 . The bone anchor trajectory guide of claim 1 , further comprising a pin aperture configured to receive a K-wire, the pin aperture oriented at an acute angle to the lateral side of the guide.

10 . (canceled)

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17 . (canceled)

18 . (canceled)

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20 . (canceled)

21 . The bone anchor trajectory guide of claim 1 , wherein at least one of the guide apertures comprises an internal thread.

22 .- 53 . (canceled)

54 . A bone anchor trajectory guide, comprising:
a body comprising a medial side configured to be placed over a lateral side of a fixation plate; a locator disposed on or through the medial side of the body, the locator configured to mate with the fixation plate; a plurality of guide apertures disposed through the body at positions corresponding to defined anchor locations and non-aligned orientations to provide good fixation in bone around a medial portion of a humerus; and a plurality of suture slots disposed along a side of the body to allow suture anchoring to the fixation plate.

55 . The bone anchor trajectory guide of claim 54 , wherein the defined anchor locations and orientations are pre-defined for a left or right side humerus.

56 . The bone anchor trajectory guide of claim 54 , wherein the defined anchor locations and orientations are for a pre-defined size of a humerus.

57 . The bone anchor trajectory guide of claim 54 , wherein the defined anchor locations and orientations are positioned at patient specific locations based on pre-operative imaging.

58 . The bone anchor trajectory guide of claim 54 , wherein the plurality of guide apertures comprises at least one anterior guide aperture with an anterior anchor trajectory and at least one posterior guide aperture with a posterior anchor trajectory, the anterior and posterior anchor trajectories diverging from each other along longitudinal axes thereof in a medial direction.

59 . The bone anchor trajectory guide of claim 54 , wherein trajectories of the plurality of guide apertures comprise splayed anchor trajectories.

60 . The bone anchor trajectory guide of claim 54 , further comprising a superior array of guide apertures, an inferior array of guide apertures, and central array of guide apertures.

61 . The bone anchor trajectory guide of claim 54 , further comprising a pin aperture oriented along a longitudinal axis disposed non-parallel to a longitudinal axis of the locator.

62 . The bone anchor trajectory guide of claim 54 , further comprising a pin aperture configured to receive a K-wire, the pin aperture oriented at an acute angle to the lateral side of the guide.

63 . The bone anchor trajectory guide of claim 54 , wherein at least one of the guide apertures comprises an internal thread.

Assignees

• Tornier Inc

Inventors

• Courtney Jr Robert
• Kuester William Matthew
• Rice Robert Benjamin

Classifications

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