IP Library Granted Patent US 10,154,855
Granted Patent B2
US 10,154,855 · App. 15/270,978 · Granted Dec 18, 2018

Skin graft devices and methods

Inventors: Colin John Hall (Poole, GB); Anissa Lloyd (San Antonio, TX); Christopher Brian Locke (Bournemouth, GB); Paul S. Slack (San Jose, CA)
Assignee: KCI Licensing, Inc.
A61B17/322A61B17/32053A61B10/0233A61B2017/00561A61B2017/00734A61B2017/306
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Quick Facts
Patent No.
US 10,154,855
App. No.
15/270,978
Granted
Dec 18, 2018
Kind
B2
Abstract

Devices and methods for obtaining a plurality of skin tissue particles for use in skin grafting.

Claims (11)

1. A device for obtaining a plurality of skin tissue particles, the device comprising:

a first portion having a conical end and a cylindrical end coupled to a base of the conical end and an aperture in an apex of the conical end, the first portion having a flow path through the first portion from the aperture to the cylindrical end, the aperture configured to be coupled to a low pressure source;

a second portion having a first end configured to be coupled to the cylindrical end of the first portion to form a cavity, the second portion being cylindrical and having a second end that is closed, the second portion being separable from the first portion;

a plurality of needles coupled to the second end of the second portion, each of the plurality of needles being hollow and in fluid communication with the aperture when the second portion is coupled to the first portion; and

a dressing configured to be disposed in the cavity and in fluid communication with the aperture and the plurality of needles.

2. The device of claim 1 , wherein each of the plurality of needles is tapered, an end of each needle proximate to the second end of the second portion being larger than a distal end.

3. The device of claim 1 , further comprising a seal coupled to the second portion, the seal surrounding the plurality of needles.

4. The device of claim 1 , wherein the first portion further comprises a surface extending across the cylindrical end, the surface having a plurality of apertures.

5. The device of claim 4 , wherein the cavity is formed between the surface extending across the cylindrical end of the first portion and the second end of the second portion.

6. The device of claim 1 , wherein the cylindrical end of the first portion has an outer diameter, the second portion has an outer diameter, and the outer diameter of the first portion is substantially the same as the outer diameter of the second portion.

7. The device of claim 6 , wherein the second portion further comprises an annular tab having an outer diameter less than the outer diameter of the second portion to form an annular shoulder, the annular shoulder configured to receive the cylindrical end of the first portion.

Assignments (6)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 1, 2024
From: 3M INNOVATIVE PROPERTIES COMPANY
To: SOLVENTUM INTELLECTUAL PROPERTIES COMPANY
Reel/Frame 066443/0513 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 31, 2023
From: KCI LICENSING, INC.
To: 3M INNOVATIVE PROPERTIES COMPANY
Reel/Frame 064790/0085 →
RELEASE OF SECURITY INTEREST IN PATENTS Recorded Nov 7, 2019
From: WILMINGTON TRUST, NATIONAL ASSOCIATION
To: KCI USA, INC.; KCI LICENSING, INC.
Reel/Frame 050966/0547 →
RELEASE OF SECURITY INTEREST REEL/FRAME 040098/0268 Recorded Feb 8, 2017
From: WILMINGTON TRUST
To: KCI USA, INC.
Reel/Frame 041666/0320 →
LIMITED THIRD LIEN INTELLECTUAL PROPERTY SECURITY AGREEMENT Recorded Oct 7, 2016
From: KCI USA, INC.; LIFECELL CORPORATION; KCI LICENSING, INC.
To: WILMINGTON TRUST, NATIONAL ASSOCIATION, AS COLLATERAL AGENT
Reel/Frame 040291/0237 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 21, 2016
From: HALL, COLIN JOHN; LLOYD, ANISSA; LOCKE, CHRISTOPHER BRIAN; SLACK, PAUL
To: KCI LICENSING, INC.
Reel/Frame 039815/0270 →
Continuity (3)
Continuation 13451174 · Apr 19, 2012
Provisional Application 61477485 · Apr 20, 2011
Related Publication 20170042561A1 · Feb 16, 2017