Olympus Optical Company, Ltd.

Kiyotoshi Sakashita

Kenichi Kimura

Eiji Murakami

Katsumi Sasaki

Shinichi Nishigaki

Toshihiko Hashiguchi

Shiro Bito

Toshiya Sugai

Yasuhiko Kikuchi

Ichiro Kagawa

Toru Shimizu

A medical instrument for use in combination with an endoscope having an operating shaft and a pair of tongs. The instrument has a drive mechanism provided between the operating shaft and the tongs, for opening and closing the tongs. The drive mechanism can apply an additional force to the tongs even after the tongs have closed completely.

Medical instrument for use in combination with endoscopes

A fixed operation handle is provided at the proximal end portion of a sheath and a movable operation handle is rotatably connected to the fixed operation handle. A coupling rod engages with the movable operation handle so as to freely move the rod back and forth. An operation shaft is threadably coupled to the coupling rod and a forceps is connected to the distal end of the operation shaft. At the areas of the coupling rod and fixed operation handle through which the coupling rod is inserted, first and second stopper units are provided for adjustably restricting an end-of-forward and end-of-backward movement of the coupling rod, thereby serving as a stopper for opening and closing the movable operation handle.

Grasping forceps for medical treatment

A medical instrument comprises an operating section and an insertion section connected to the operating section and adapted to be inserted into a living body, the insertion section including a tubular member formed of a liquid crystal polymer. The tubular member constituting the insertion section of the medical instrument or a channel tube disposed in the insertion section is formed thin-walled by using the liquid crystal polymer.

Medical instrument

The resectoscope apparatus of this invention is provided with an electrode resecting or coagulating tissues within a body cavity by using a high frequency curent, a sheath in which at least a part of a hollow tube part inserting the electrode is formed of an electric insulating material, an operating part making the electrode operatable from outside the body, enclosing the electrode together with the sheath and formed of an electric insulating material and an endoscope inserted through the sheath to be able to observe the body cavity interior.

Resectoscope apparatus

Growing community of inventors

Hachioji, Japan

Kiyotoshi Sakashita