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Development and evaluation of a master-slave robot system for SILS

  The laparoscopic surgery is performed with slender surgical instruments and a laparoscope, which are inserted through multiple incisions in the abdomen. As this method is less invasive than conventional open surgery, the patient's damage is lesser, thus bringing a high QOL (Quality Of Life) for the patients. Recently, a new method, called single-incision laparoscopic surgery (SILS), has been used in several operations with the advances of less invasive surgery. Single-incision laparoscopic surgery has a cosmetic advantage that the scar is concealed within the umbilicus because the laparoscope and surgical instruments are set into a single incision.

  However, besides a difficulty which is also found in the conventional laparoscopic surgery, the difference between the viewing spot and the operating spot, it has other problems: the narrowness of surgeon hands' operating range, the interference between the laparoscope and surgical instruments, and the visual defect of surgical site caused by the surgical instruments, thus increasing surgeons' burden.

  To reduce their burden, in this study, we propose and develop a master-slave robot system that can perform single-incision laparoscopic surgery as if a surgeon operates a conventional laparoscopic surgery.

  Also we study along with surgeons in Osaka University (Department of Gastroenterological Surgery, Graduate School of Medicine) and hear from them about SILS.

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