Local Ablation by a Microelectric Knife: Enucleation of an Oocyte

The electric knife is one of the indispensable surgical devices widely used in surgical operation. However, it has not been remarkably improved since its invention several decades ago. For example, thermal damage of the current radiofrequency electric knife, which is one of the most nonintrusive type of electric knives, is more than several hundred micrometers. A laser device, which was invented approximately 70 years ago, has been developed remarkably, and various research report the interaction between the cells and laser to fulfill the cellular-order ablation [1], [2].