Medical resection instrument

Abstract

Abstract A medical resection instrument uses ultrasonic vibrations for resectioning tissue from a living organism while the body cavity concerned is observed by an optical observation pipe (8). The resection instrument (2) has an ultrasonic vibrator (14) for generating ultrasound waves, a conical horn (18) connected to the vibrator (14) and a probe (12) connected to the front horn section for transmission of the ultrasonic vibrations. The probe is formed with a rod-shaped shaft (12a) and a distal terminal section with a resection knife (13), an electrical supply unit (11) supplies a control voltage to the vibrator (14) and the optical observation pipe (8) has a guide hole (6) in which the shaft (12a) of the probe (12) is inserted. <IMAGE>

Inventors

• 👤 Tetsumaru Kubota
• 👤 Tatsuo Nagasaki
• 👤 Koji Taguchi
• 👤 Hiroyoshi Fujimori
• 👤 Akio Nakada
• 👤 Syuichi Takayama
• 👤 Daisaku Negoro
• 👤 Toshiki Terayama
• 👤 Hiroyuki Kusunoki
• 👤 Shinji Hatta
• 👤 Hitoshi Karasawa
• 👤 Masaaki Hayashi
• 👤 Tadao Hagino
• 👤 Akihiro Taguchi

Bibliographic Details