Laparoscopic ultrasound manipulator with a spring-based elastic mechanism. - Jumpei Arata; Kazunari Fukami; Susumu Oguri; Shinya Onogi; Tetsuo Ikeda; Ryu Nakadate; Masamichi Sakaguchi; Tomohiko Akahoshi; Kanako Harada; Mamoru Mitsuishi; Makoto Hashizume (Int. J. Comput. Assist. Radiol. Surg., 2018)