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US 12,630,664 B2Granted
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.
Claims18
A system comprising:
- a radiopaque thermoset shape memory polymer (SMP) foam that is 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, (b) the SMP foam is a poly(urethane-urea-amide), (c) the iodine is included in a triiodobenzene functional group, and (d) the SMP foam does not include a tertiary amine;
- wherein the SMP foam comprises polycaprolactone (PCL).
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), (c) the iodine is included in a triiodobenzene functional group, and (d) the SMP foam does not include a tertiary amine;
- wherein the SMP foam comprises polycaprolactone (PCL).
Dependencies are inferred from the claim text.