Device and method for allografting

Patent metadata

Field	Value
Publication number	US-10905437-B2
Application number	US-201515124647-A
Country	US
Kind code	B2
Filing date	Mar 12, 2015
Priority date	Mar 13, 2014
Publication date	Feb 2, 2021
Grant date	Feb 2, 2021

Abstract

In one embodiment, a cutting guide is disclosed for use in a surgical procedure to removed damaged tissue from a patient and form a recipient site configured and dimensioned to receive a donor graft. The cutting guide includes a first arm that abuts a section of the damaged tissue to be removed, and a second arm including a hole and a slot that receives a cutting implement, the first arm and the slot defining a distance therebetween corresponding to a desired dimension of the recipient site. In another embodiment, a cutting guide is disclosed for use in forming a donor graft from donor tissue. The cutting guide includes a body that receives the donor tissue, and a shaping member that is rotatably secured to the body. The shaping member includes at least one vane that shapes the donor tissue so as to form the donor graft.

First claim

The invention claimed is:

1. A surgical cutting guide for use in forming a donor cartilage graft from donor cartilage tissue, the cutting guide comprising:
a body defining a channel extending along a first axis, said channel located below a topmost surface of the body, the channel being configured and dimensioned to receive the donor tissue; and
a shaping member secured to the body such that the shaping member is rotatable in relation to the body about a second axis, the shaping member including at least one vane extending into the channel such that as the donor tissue is advanced through the channel, the at least one vane shapes the donor tissue so as to form the donor graft.

2. The cutting guide of claim 1 , wherein the shaping member is secured to the body of the cutting guide such that the second axis is transverse in relation to the first axis.

3. The cutting guide of claim 2 , wherein the shaping member is secured to the body of the cutting guide such that the second axis is orthogonal in relation to the first axis.

4. The cutting guide of claim 1 , wherein the body of the cutting guide defines an upper shelf and a lower shelf positioned on opposite sides of the shaping member.

5. The cutting guide of claim 1 , wherein the at least one vane includes a linear portion and a non-linear portion.

6. The cutting guide of claim 5 , wherein the linear portion and the non-linear portion of the at least one vane are configured and dimensioned such that the donor cartilage graft defines a planar section, and a tongue member extending outwardly in relation to the planar section.

7. The cutting guide of claim 6 , wherein the non-linear portion of the at least one vane defines at least one recess.

8. The cutting guide of claim 1 further including a sled movable in relation to the body of the cutting guide to urge the donor cartilage tissue through the channel.

9. The cutting guide of claim 8 , wherein the sled includes a textured surface to increase friction between the sled and the donor cartilage tissue during movement of the donor cartilage tissue through the channel.

Assignees

• Univ Missouri

Inventors

• Pfeiffer Ferris M
• Cook James L
• Stannard James P

Classifications

• A61B17/157 Primary

  Cutting tibia · CPC title

• A61F2/4644

  Preparation of bone graft, bone plugs or bone dowels, e.g. grinding or milling bone material (bone material A61F2/28; disintegrating or milling devices B02C) · CPC title

• A61F2002/4649

  Bone graft or bone dowel harvest sites · CPC title

• A61F2/3872

  Meniscus for implantation between the natural bone surfaces · CPC title

• A61B17/56

  Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor · CPC title