Patent ID: 11864989
Assignee: LAWRENCE LIVERMORE NATIONAL SECURITY, LLC
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 5:
6. A system comprising:
first and second shape memory polymers (SMPs);
wherein the first SMP: (a) is a cross-linked, biodegradable, open cell foam that includes a first channel, (b) is in a first state and is configured to expand to a second state, radially outward from the second SMP, in response to thermal stimulus, (c) has a glass transition temperature (Tg) between 30° C. and 86° C.; and (d) is configured to have hysteresis corresponding to the Tg;
wherein the second SMP: (a) is a frame having a first strut that includes the second SMP and a second strut that includes the second SMP, and (b) is included in the first channel;
wherein the first and second SMPs are coupled to a wire;
wherein the foam adheres to the second SMP via a polyurethane-based adhesive.