Surgical guide with cut resistant inserts

Patent metadata

Field	Value
Publication number	US-9317631-B2
Application number	US-201313792849-A
Country	US
Kind code	B2
Filing date	Mar 11, 2013
Priority date	May 3, 2012
Publication date	Apr 19, 2016
Grant date	Apr 19, 2016

Abstract

A resection guide can be configured to guide a resection tool toward a graft source, and can include a resection guide body made from a first material, and a guide member made from a second material. The second material is harder than the first material.

First claim

What is claimed:

1. A resection guide configured to guide a resection tool toward a graft source, the resection guide comprising:
a resection guide body defining:
an external, outer body surface;
an inner body surface opposite the outer body surface and elongate along a longitudinal direction, the inner body surface having a first terminal edge and a second terminal edge offset from the first terminal edge by a first dimension along a select direction that is perpendicular to the longitudinal direction, and the inner body surface being concave from the first terminal edge to the second terminal edge; and
first and second resection guide openings that extend from the inner body surface through the outer body surface, wherein the first and second resection guide openings define respective first and second graft resection axes that are configured to receive a portion of the resection tool and guide the resection tool along the respective first and second resection guide openings so as to resect a graft portion from the graft source, the resection guide body defining, for each one of the first and second resection guide openings, first and second inner surfaces that at least partially define the one of the first and second resection guide openings, wherein the second inner surface is spaced from the first inner surface along a respective one of the first and second graft resection axes, and the second inner surface is offset from the first inner surface by a minimum dimension with respect to the select direction, the minimum dimension being greater than the first dimension.

2. The resection guide according to claim 1 , wherein the resection guide body defines, for each of the first and second resection guide openings, third and fourth opposed inner surfaces that at least partially define the respective one of the first and second resection guide openings and are configured to contact the resection tool as the resection tool is guided along the respective first and second graft resection axes.

3. The resection guide according to claim 1 , wherein the first and second resection guide openings are devoid of inserts that are discrete with the resection guide body.

4. The resection guide according to claim 1 , wherein the resection guide body is laser-sintered.

5. The resection guide according to claim 1 , wherein the first and second graft resection axes are angularly offset with respect to each other.

6. The resection guide according to claim 1 , wherein the resection guide body is made from a metallic material that has a Brinell hardness ranging between about 10 HB and about 200 HB.

7. The resection guide according to claim 1 , wherein the resection guide body is made from a metallic material that has a Brinell hardness of about 120 HB.

8. The resection guide of claim 1 , wherein the first resection guide opening is spaced from the second resection guide opening.

9. The resection guide of claim 8 , further comprising a third resection guide opening that extends from the inner body surface through the outer body surface, the third resection guide opening intersecting one of the first and second resection guide openings.

10. The resection guide of claim 1 , wherein the first resection guide opening intersects the second resection guide opening.

11. The resection guide of claim 2 , wherein the resection guide body is elongate along a central axis that extends in the longitudinal direction, and the first and second inner surfaces are spaced further from the central axis along the select direction than the first and second terminal edges.

12. The resection guide of claim 1 , wherein the resection guide body is elongate along a central axis that extends in the longitudinal direction, and the first and second inner surfaces are spaced further from the central axis along the select direction than the first and second terminal edges.

13. The resection guide of claim 1 , wherein the resection guide body defines, for each of the first and second resection guide openings, third and fourth inner surfaces that extend between the first and second inner surfaces so as to at least partially define the respective one of the first and second resection guide openings, wherein the first inner surface faces the second inner surface and the third inner surface faces the fourth inner surface.

14. The resection guide of claim 1 , wherein the resection guide body comprises:
first and second support members defining the first and second resection guide openings, respectively; and
a connecting member connecting the first support member to the second support member, wherein each of the first and second support members have a length in a direction that is greater than a length of the connecting member in the direction.

15. The resection guide of claim 1 , wherein, for each of the first and second resection guide openings, an inner surface of the resection guide body defines a closed shape around the respective one of the first and second resection guide openings, the closed shape lying in a single plane.

16. The resection guide of claim 1 , wherein the resection guide body is elongate along a longitudinal direction, and at least one of the first and second resection guide openings is elongate in a direction perpendicular to the longitudinal direction.

17. A resection guide configured to guide a resection tool toward a graft source, the resection guide comprising:
a resection guide body defining:
an external, outer body surface;
an inner body surface opposite the outer body surface and elongate along a longitudinal direction, the inner body surface having a first terminal edge and a second terminal edge spaced from the first terminal edge along a select direction that is perpendicular to the longitudinal direction, and the inner body surface being concave from the first terminal edge to the second terminal edge; and
first and second resection guide openings that extend from the inner body surface through the outer body surface, and that intersect one another and at least one of the first and second terminal edges, wherein the first and second resection guide openings define respective first and second graft resection axes that are configured to receive a portion of the resection tool and guide the resection tool along the respective first and second resection guide openings so as to resect a graft portion from the graft source.

18. The resection guide according to claim 17 , wherein the resection guide body defines, for each of the first and second resection guide openings, first and second opposed inner surfaces that at least partially define the respective one of the first and second resection guide openings and are configured to contact the resection tool as the resection tool is guided along the respective first and second graft resection axes.

19. The resection guide of claim 18 , wherein the resection guide body defines, for each of the first and second resection guide openings, third and fourth opposed inner surfaces that extend between the first and second opposed inner surfaces and at least partially define the respective one of the first and second resection guide openings, wherein the first and second terminal edges of the inner body surface are spaced between the third and fourth inner surfaces.

20. The resection guide of claim 17 , wherein the resection guide body defines, for each of the first and second resection guide openings, a first inner surface and a second inner surface spaced from the first inner surface so as to at least partially d

Assignees

• Depuy Synthes Products Inc

Inventors

• Davison Andrew Charles
• Barthold Michael

Classifications

• A61B17/1739

  specially adapted for particular parts of the body · CPC title

• A61B2034/108

  Computer aided selection or customisation of medical implants or cutting guides · CPC title

• A61F2002/4649

  Bone graft or bone dowel harvest sites · CPC title

• A61B2034/105

  Modelling of the patient, e.g. for ligaments or bones · CPC title

• A61B17/1728

  for holes for bone plates or plate screws · CPC title