Examination of Mechanical Properties and Photoelastic Properties of Gel Material for Blood Vesssel Mimics
Abstract Catheter surgery is a minimally invasive treatment in which visual information is limited to a two-dimensional image generated by an X-ray camera. This results in the possibility that stress applied by the catheter onto a blood vessel wall damages the vessel. Doctors must therefore be skillful at catheter surgery. We proposed a catheter surgery simulator that visualizes the stress applied to the blood vessel wall using photoelasticity. The manufacture of this simulator requires creating blood vessel mimics that reproduce the physical properties of blood vessel tissue using photoelasticity. This study investigated the mechanical and photoelastic properties of gel materials and selected a gel composition suitable for making blood vessel mimics. We showed that by changing the compositions of polyvinyl alcohol (PVA) hydrogel and double network (DN) gel we could reproduce various blood vessel tissue properties.