Devices for generating skin grafts

Patent metadata

Field	Value
Publication number	US-9848908-B2
Application number	US-201514657964-A
Country	US
Kind code	B2
Filing date	Mar 13, 2015
Priority date	Dec 7, 2011
Publication date	Dec 26, 2017
Grant date	Dec 26, 2017

Abstract

The invention generally relates to methods for manufacturing components for use in a device for generating substantially planar micrografts. The methods of the invention provide for the manufacture of substantially uniform components for a cutter contained within the device, the cutter configured to cut a blister in order to produce a substantially planar graft.

First claim

What is claimed is:

1. A device for generating a skin graft, the device comprising:
a hollow body, wherein a bottom surface of said hollow body comprises a plurality of openings and is configured for placement on a skin,
a cutter plate positioned within said hollow body and having a plurality of openings, said cutter plate being assembled within said hollow body such that said plurality of openings of the cutter plate are aligned relative to the plurality of openings of said bottom surface,
a mechanism for simultaneously raising a plurality of blisters through said plurality of openings of said bottom surface and said plurality of openings of said cutter plate such that the plurality of blisters protrude at least partially into said hollow body, and
a strap for coupling the device to a skin surface so as to securely place said bottom surface in contact with the skin before the raising of said blisters.

2. The device of claim 1 , wherein the strap is adjustable in size.

3. The device of claim 1 , wherein said strap comprises a belt/loop fastener.

4. The device of claim 1 , wherein said strap comprises any of a metal cuff and a plastic cuff.

5. The device of claim 1 , wherein said mechanism for raising a plurality of blisters comprises any of a vacuum source, a heat source, and a combination thereof.

6. The device of claim 1 , wherein said cutter plate is movable relative to said bottom surface and wherein said openings of said cutter plate comprise cutting edges configured to cut said one or more blisters protruding into the hollow body upon movement of the cutter plate relative to said bottom surface.

7. A device for generating a skin graft, the device comprising:
a hollow body, wherein a bottom surface of said hollow body comprises a plurality of openings and is configured for placement on a skin;
a vacuum mechanism for raising a plurality of blisters through said openings such that the plurality of blisters protrude at least partially into said hollow body;
a cutter disposed in said hollow body configured to cut said plurality of blisters protruding into the hollow body, said cutter having a plurality of openings and being assembled within said hollow body such that said plurality of openings of the cutter are aligned relative to the plurality of openings of the bottom surface, each of said plurality of openings of cutter having a cutting edge configured to cut a blister of the plurality of blisters that at least partially protrudes therethrough; and
a strap for coupling the device to a skin surface so as to securely place said bottom surface in contact with the skin.

Assignees

• Momelan Tech Inc
• Kci Licensing Inc

Inventors

• Sabir Sameer Ahmed
• Cerier Jeffrey
• Ziegler Andrew

Classifications

• A61B2017/00526

  Methods of manufacturing · CPC title

• A61B2090/0814

  Preventing re-use · CPC title

• A61B90/03

  Automatic limiting or abutting means, e.g. for safety · CPC title

• Y10T156/10

  Methods of surface bonding and/or assembly therefor · CPC title

• Y10T29/49826

  Assembling or joining · CPC title