Design and evaluation of a new ergonomic handle for instruments in minimally invasive surgery

摘要: Abstract Background Laparoscopic surgery techniques have been demonstrated to provide massive benefits patients. However, surgeons are subjected hardworking conditions because of the poor ergonomic design instruments. In this article, a new handle is presented. This designed using principles, trying both more intuitive manipulation instrument and shape that reduces high-pressure zones in contact with surgeon's hand. Materials methods The characteristics were evaluated objective subjective studies. experimental evaluation was performed 28 volunteers by means comparison ring-handle (RH) concept an available on market. volunteers' muscle activation motions hand, wrist, arm studied while they different tasks. data measured experiment include electromyography goniometry values. Results results obtained from analysis reveal most (64%) preferred prototype RH, reporting less pain difficulty complete study hyperflexion wrist required for strongly reduced. Conclusions not only provides important advantages but also improves efficiency when completing Compared RH instruments, reduced areas extreme wrist.