Surgical instrumentation and methods of use for implanting a prosthesis

Patent metadata

Field	Value
Publication number	US-9993254-B2
Application number	US-201615004469-A
Country	US
Kind code	B2
Filing date	Jan 22, 2016
Priority date	Jun 25, 2008
Publication date	Jun 12, 2018
Grant date	Jun 12, 2018

Abstract

One aspect of the present invention relates to a tissue resection guide that includes a central body, a first flange and a second flange, the flanges having first and second guide surfaces, respectively, suitable for use in tissue resection. Each guide surface lies on a cutting plane, both planes intersecting interior to the flanges. In the embodiments described, the availability of two cutting planes ensures resections in more than one plane are possible. As a result, bone segments can be removed via a cut on two planes without the need to cut across an entire section of bone on one plane. In some embodiments, an opening exists between the first flange and the second flange to ensure that each resection overlaps. In other aspects of the invention, systems and methods of use for the tissue resection guide are described.

First claim

The invention claimed is:

1. A tissue resection guide comprising:
a central body portion having a first end and a second end;
a bottom surface of the central body portion defining a first guide surface;
a first flange extending from the central body portion, the first flange defining a second guide surface, the first and second guide surfaces being parallel;
a second flange extending from the central body portion, the second flange defining a third guide surface;
a cutting slot defined by an opening between the central body portion and the first flange, the cutting slot having a length extending from a first location adjacent to the first end to a second location on the third guide surface, wherein the cutting slot is shaped such that a first cutting plane runs therethrough; and
a cutting surface defined by the third guide surface, wherein the cutting surface is also a second cutting plane,
wherein the first cutting plane intersects the second cutting plane at the second location,
wherein at least one of the first flange and the second flange includes a free end remote from the central body portion such that a position of the first flange relative to the second flange is maintained through a connection of each of the first flange and the second flange to the central body portion, and
wherein the third guide surface of the second flange is at an obtuse angle relative to the first guide surface.

2. The tissue resection guide of claim 1 , further comprising an opening between the first flange and the second flange such that there is no direct contact between the first flange and the second flange.

3. The tissue resection guide of claim 1 , further comprising a first aperture at the first location of the cutting slot and a second aperture adjacent to the second location of the cutting slot, the first and second apertures adapted to receive pins.

4. The tissue resection guide of claim 3 , wherein the first aperture is defined by a curved portion of the second guide surface at the first location and the second aperture is defined by a curved portion of the second guide surface at an end of the first flange closest to the second location and a curved portion of the third guide surface adjacent to the second location of the cutting slot.

5. The tissue resection guide of claim 3 , wherein the first aperture is defined by a concave shaped portion of the second guide surface at the first location and the second aperture is defined by a notch on the second guide surface at an end of the first flange closest to the second location and a concave shaped portion of the third guide surface adjacent to the second location of the cutting slot.

6. The tissue resection guide of claim 1 , wherein the first flange includes a length having a first portion and a second portion, the first portion extending from the central body portion in a direction substantially perpendicular to the first guide surface and the second portion extending from an end of the first portion distal to the central body portion toward the second location of the cutting slot such that the second portion is substantially parallel to the first guide surface.

7. The tissue resection guide of claim 6 further comprising a first and second aperture, wherein the first aperture is defined by a concave shaped portion of the second guide surface at the first location and the second aperture is defined by a notch on the second guide surface at an end of the first flange closest to the second location and a concave shaped portion of the third guide surface adjacent to the second location of the cutting slot.

8. The tissue resection guide of claim 1 , wherein the second flange further comprises two portions wherein a second cutting slot is defined by an opening between the two portions.

9. The tissue resection guide of claim 1 , wherein the first cutting plane through the cutting slot is configured to be positionable at an angle between approximately 85 degrees and approximately 95 degrees relative to a longitudinal axis of a bone to be resected.

10. A tissue resection guide comprising:
a central body portion having a first end and a second end;
a first flange attached to the central body portion at the first end of the central body portion;
a second flange attached to the central body portion at the second end of the central body portion, wherein the first flange and the second flange are attached on a common surface of the central body portion;
a cutting slot defined by an opening between the central body portion and the first flange, the cutting slot having a length extending from a first location adjacent to the first end to a second location on the second flange, wherein the cutting slot is shaped such that a first cutting plane runs therethrough; and
a cutting surface defined by a surface of the second flange, wherein the cutting surface is also a second cutting plane,
wherein the first cutting plane intersects the second cutting plane at the second location, and
wherein the first flange and the second flange each include a free end remote from the central body portion such that a position of the first flange relative to the second flange is maintained through attachment of each of the first flange and the second flange to the central body portion, and
wherein the first cutting plane is transverse to the second cutting plane.

11. The tissue resection guide of claim 10 , further comprising an opening between the first flange and the second flange such that there is no direct contact between the first flange and the second flange.

12. The tissue resection guide of claim 10 , wherein the first flange is entirely on a first side of the second cutting plane and the second flange is entirely on a second side of the second cutting plane.

13. The tissue resection guide of claim 10 , further comprising a first aperture at the first location of the cutting slot and a second aperture adjacent to the second location of the cutting slot, the first and second apertures adapted to receive pins.

14. The tissue resection guide of claim 13 , wherein the first aperture is defined by a curved portion of an inner surface on the first flange at the first location and the second aperture is defined by a curved portion of the inner surface at an end of the first flange closest to the second location and a curved portion of the cutting surface of the second flange adjacent to the second location.

15. The tissue resection guide of claim 10 , wherein the first flange includes a length having a first portion and a second portion, the first portion extending from the central body portion in a direction substantially perpendicular to the first cutting plane and the second portion extending from an end of the first portion distal to the central body portion toward the second location of the cutting slot such that the second portion is substantially parallel to the first cutting plane.

16. The tissue resection guide of claim 15 further comprising a first and second aperture, wherein the first aperture is defined by a concave shaped portion of an inner surface on the first flange at the first location and the second aperture is defined by a notch on the inner surface at an end of the first flange closest to the second location and a concave shaped portion of the cutting surface of the second flange adjacent to the second location.

17. The tissue resection guide of claim 10 , wherein the second flange further comprises two portions wherein a second cutting slot is defined by an opening between the two portions.

18. The tissue resection guid

Assignees

• Stryker European Holdings I Llc

Inventors

• Loring Thomas
• Gilbert Stephen G
• Chan Victor

Classifications

• A61F2/4202

  for ankles · CPC title

• A61B17/15 Primary

  Guides therefor · CPC title

• A61B17/1775

  for the foot or ankle · CPC title

• A61B17/025

  Joint distractors · CPC title

• A61B17/1682

  for the foot or ankle · CPC title