Treating aneurysms with expanding foam
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It is possible to create foam that could help protect the brain from vascular aneurysms with less risks than current methods.
The foam is biocompatible polyurethane-based shape memory polymer foam. The foam can be made into a primary shape, and then transformed into a new shape when subjected to an increase in temperature. This allows the foam to be inserted into the aneurysm site in a smaller, crimped shape, where it can be triggered to expand with a shot of laser light from an optical fiber. As the foam expands, it fills the aneurysm and forms a clot to help promote the growth of healing cells.