OneShot™ The Aragon Surgical OneShot™ Electrosurgical System is currently under development and was designed with gynecologists for use in abdominal (“open”) hysterectomy. Utilizing Aragon Surgical’s novel TissueSense ™ Technology, the OneShot™ allows gynecologic surgeons to rapidly seal and divide the parametrial tissue sheets supporting the uterus with fewer device applications than are required with other technologies.