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US 2020/0017625 A1Published application
Chemically modified shape memory polymer embolic foams with increased x-ray visualization
AssigneeThe Texas A&M University System
InventorsLandon D. Nash, Kendal P. Ezell
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Abstract
An embodiment includes a system comprising: an iodine containing thermoset open-cell shape memory polymer (SMP) foam that is x-ray visible; wherein (a) the SMP foam is configured to expand from a compressed secondary state to an expanded primary state in response to thermal stimulus, (b) the SMP foam is a poly(urethane-urea-amide). Other embodiments are described herein.
Claims25
A system comprising:
- a thermoset shape memory polymer (SMP) foam that is covalently bonded to iodine;
- wherein (a) the SMP foam is configured to expand from a compressed secondary state to an expanded primary state in response to thermal stimulus, and (b) the SMP foam is a poly(urethane-urea-amide).
A method comprising:
- providing a triiodobenzene monomer;
- providing an aliphatic monomer comprising at least one of (a)(i) multiple amine functional groups, (a)(ii) multiple alcohol functional groups, (a)(iii) multiple carboxylic acid functional groups, or (a)(iv) combinations thereof;
- providing a diisocyanate;
- mixing the triiodobenzene monomer, the aliphatic monomer, and the diisocyanate into a solution;
- forming a thermoset shape memory polymer (SMP) foam from the solution.
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A system comprising:
- an iodine containing thermoset open-cell shape memory polymer (SMP) foam that is x-ray visible;
- wherein (a) the SMP foam is configured to expand from a compressed secondary state to an expanded primary state in response to thermal stimulus, (b) the SMP foam is a poly(urethane-urea-amide).
Dependencies are inferred from the claim text.