Geometrically shaped coupling hydrogel standoffs for high intensity focused ultrasound

摘要

An in vivo biocompatible hydrogel acoustic coupling standoff for transfer of high intensity ultrasound to achieve hemostasis and ablation during surgery. More specifically, a group of hydrogels, based on hydrophilic block co-polymers, can form rigid, low acoustic attenuation coupling members that are in vivo biocompatible.