Dissection capability effect of bubble type LILJ in biomedical tissue

Abstract

Laser-Induced Liquid Jet (LILJ) has been developed as a dual functional therapeutic device which accomplish tumor dissection and preservation of fine blood vessels and nerve. Along the way, LILJ has been worked on crushing pituitary tumor in brain nerve surgery field. We have focused on the effect of bubble jet as a method of improving dissection capability. The objectives of this study is to develop a new bubble jet type LILJ that efficiently mixed minute bubbles into the jet.To validate the both mechanisms of bubble type jet for preserving micro vessels or nerves and crushing weak tissues, we developed image based analysis system using high speed video camera (Fastcam-max). We observed the liquid sphere phenomenon which were formed when the jet were shot in soft phantom, and analyzed the generation and formation of liquid sphere using the analysis system.