18586901. HEMORRHAGE MANAGEMENT SYSTEM simplified abstract (LAWRENCE LIVERMORE NATIONAL SECURITY, LLC)

HEMORRHAGE MANAGEMENT SYSTEM

Organization Name

LAWRENCE LIVERMORE NATIONAL SECURITY, LLC

Inventor(s)

Duncan J. Maitland of College Station TX (US)

Todd Lawrence Landsman of Ojai CA (US)

Tyler Joseph Touchet of Cypress TX (US)

Elizabeth L. Cosgriff-hernandez of College Station TX (US)

Thomas S. Wilson of San Leandro CA (US)

HEMORRHAGE MANAGEMENT SYSTEM - A simplified explanation of the abstract

This abstract first appeared for US patent application 18586901 titled 'HEMORRHAGE MANAGEMENT SYSTEM

The abstract describes a wound dressing made of a shape memory polymer (SMP) foam with open cells in two states, and a hydrogel within the cells. The dressing can be positioned near hemorrhagic tissue with the SMP foam in its first state, and then expanded to its second state against the tissue when the foam is plasticized at 37°C.

• Shape memory polymer (SMP) foam with open cells
• Hydrogel included within the cells
• Dressing can be positioned near hemorrhagic tissue in first state, then expanded to second state against tissue
• SMP foam plasticized at 37°C to change states
• Glass transition temperature (T) of SMP foam depressed to below 25°C

Potential Applications: - Medical field for wound care and hemorrhage control

Problems Solved: - Efficient wound dressing for hemorrhagic tissue - Controlled expansion and contraction for optimal wound coverage

Benefits: - Improved wound healing process - Enhanced hemorrhage control - Customizable fit for different wound sizes

Commercial Applications: - Medical device industry for wound care products - Hospitals and healthcare facilities for emergency wound treatment

Questions about the technology: 1. How does the shape memory polymer foam change states to expand against the hemorrhagic tissue? 2. What are the advantages of using a hydrogel within the cells of the wound dressing?

Frequently Updated Research: - Ongoing studies on the effectiveness of shape memory polymer foam in wound healing and hemorrhage control.

Original Abstract Submitted

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 (T) of the SMP foam to below 25° C. Other embodiments are described herein.