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Solvent depression of transition temperature to selectively stimulate actuation of shape memory polymer foams
(United States. Patent and Trademark Office, 2021-09-07)
An embodiment of the invention is a shape memory polymer (SMP) foam designed to recover its original shape through exposure to a solvent. Thermo-responsive SMPs are polymers designed to maintain a programmed secondary shape ...
Vascular prosthesis for leak prevention during endovascular aneurysm repair
(United States. Patent and Trademark Office, 2019-11-26)
An embodiment includes a process for treating an abdominal aortic aneurysm (AAA) endoleak with a shape memory polymer (SMP) foam device. First, a bifurcated stent graft is placed within the aneurysm while a micro guidewire ...
Medical devices coated with shape memory polymer foams
(United States. Patent and Trademark Office, 2020-02-18)
An embodiment includes a system comprising: a substrate of a medical device; an un-foamed polyurethane coating directly contacting the substrate and fixedly attached to the substrate; a thermoset polyurethane shape memory ...
Mechanical reticulation of polymeric-based closed cell foams
(United States. Patent and Trademark Office, 2020-05-12)
Polymeric based closed cell foams, such as shape memory polymer foams, contain bubbles. Making these bubbles continuous is called reticulation. Disclosed are embodiments of a device and method to controllably reticulate ...
Antimicrobial shape memory polymers
(United States. Patent and Trademark Office, 2021-08-17)
An embodiment includes a system comprising a thermoset polyurethane shape memory polymer (SMP) foam that includes at least one antimicrobial agent. The antimicrobial agent may include at least one phenolic acid that is a ...