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Title: Hemorrhage management system

Patent ·
OSTI ID:1824006
; ; ; ;

An embodiment includes a wound dressing comprising: a shape memory polymer (SMP) foam, including open cells, having first and second states; and a hydrogel (HG) included within the cells; wherein (a) in a first position a composite, including the SMP foam and the HG, is configured to be located proximate a hemorrhagic tissue with the SMP foam in the first state; (b) in a second position the composite is configured to be expanded to the second state against the hemorrhagic tissue when the SMP foam is plasticized at 37° C. depressing a glass transition temperature (Tg) of the SMP foam to below 25° C. Other embodiments are described herein.

Research Organization:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC52-07NA27344
Assignee:
Lawrence Livermore National Security, LLC (Livermore, CA); THE BOARD OF REGENTS OF THE UNIVERSITY OF TEXAS SYSTEM (College Station, TX)
Patent Number(s):
11,020,507
Application Number:
16/353,793
OSTI ID:
1824006
Resource Relation:
Patent File Date: 03/14/2019
Country of Publication:
United States
Language:
English

References (18)

Introducer for Use in Inserting a Medical Device into a Body Vessel and Method for Same patent-application March 2010
Self-Expanding Wound Dressing patent-application May 2014
Absorbable tissue dressing assemblies, systems, and methods formed from hydrophilic polymer sponge structures such as chitosan patent September 2012
Hemorrhage management system patent April 2019
Shape memory polymers patent-application February 2006
Devices and bandages for the treatment or prevention of scars and/or keloids and methods and kits therefor patent-application February 2008
Device for inserting implants patent-application February 2003
Shape memory polymer orthodontic appliances, and methods of making and using the same patent-application July 2006
Use of pvp-iodine liposomes for treatment of acne patent-application December 2006
Shape Memory Polymer patent-application May 2014
Medical Device for Wound Closure and Method of Use patent-application February 2010
Shape-memory structures patent December 2014
System and method for healing a wound at a tissue site patent May 2013
Shape Memory Polymers patent-application February 2011
Hydrophilic polyurethane foams patent March 2000
Stent With Expandable Foam patent-application September 2013
Foams having shape memory patent June 2003
Hemostatic compositions, assemblies, systems, and methods employing particulate hemostatic agents formed from hydrophilic polymer foam such as Chitosan patent June 2014

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