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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 ...
Hemorrhage management system
(United States. Patent and Trademark Office, 2021-06-01)
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 ...
Shape-memory polymer foam device for treating aneurysms
(United States. Patent and Trademark Office, 2021-10-12)
A system for treating an aneurysm in a blood vessel or vein, wherein the aneurysm has a dome, an interior, and a neck. The system includes a shape memory polymer foam in the interior of the aneurysm between the dome and ...
Surface modification of polymer foams using plasma
(United States. Patent and Trademark Office, 2020-09-22)
An embodiment includes a system comprising: a monolithic shape memory polymer (SMP) foam having first and second states; wherein the SMP foam includes: (a) polyurethane, (b) an inner half portion having inner reticulated ...
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 ...
Shape memory polymer vessel occlusion device
(United States. Patent and Trademark Office, 2020-09-29)
An embodiment includes a system comprising: an outer conduit; a shape memory polymer (SMP) foam; a metal backbone including: (a)(i) a first portion that extends from the SMP foam proximal end to the SMP foam distal end and ...
Expandable implant and implant system
(United States. Patent and Trademark Office, 2021-01-26)
An embodiment of the invention includes an expandable implant to endovascularly embolize an anatomical void or malformation, such as an aneurysm. An embodiment is comprised of a chain or linked sequence of expandable polymer ...
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 ...
Processable, tunable thio-ene crosslinked polyurethane shape memory polymers
(United States. Patent and Trademark Office, 2020-08-04)
An embodiment includes a platform shape memory polymer system. Such an embodiment exhibits a blend of tunable, high performance mechanical attributes in combination with advanced processing capabilities and good biocompatibility. ...
Shape memory polymer nonocomposites and uses thereof
(United States. Patent and Trademark Office, 2020-08-25)
The invention relates to radiopaque shape memory foam compositions and methods of using the compositions. In certain embodiments, the compositions are used in neurovascular occlusion applications.