Cutting performance by surgical scissors of tubular soft tissues such as blood vessels

Abstract

Current surgical scissors globally and significantly deform blood vessels when cutting them because of the softness and tubular shape of the vessels, which damages the cut site. In this study, cutting experiments were performed on tubular tissue phantoms, and finite element analysis was conducted to clarify the influence of the scissors configuration on the cutting characteristics. Based on the findings, a new scissors model with a four-bar linkage mechanism is proposed. Cutting experiments showed that the developed scissors significantly suppresses global deformation during cutting.