Olympus Optical Company, Ltd.

Toshihiko Suzuta

Minoru Tsuruta

Shiro Bito

Yuichi Ikeda

Tomohisa Sakurai

Hitoshi Karasawa

Tetsumaru Kubota

Mitsumasa Okada

Kazuya Hijii

Tadao Hagino

Hiroaki Kagawa

Tatsuya Kubota

Seiji Kuramoto

Kenji Yoshino

Shuichi Kimura

Tsuyoshi Tsukagoshi

Masahiro Kudo

Akito Mukaizawa

Hideo Nagazumi

Akio Nakada

Kazuhiko Oozeki

Isami Hirao

Naoki Uchiyama

Yoshinao Oaki

Norikiyo Shibata

Akio Nakata

Kunihide Kaji

Hiroki Hibino

Keisuke Saito

Takahiro Kogasaka

Masakazu Gotanda

Shuichi Takayama

Shinichi Nishigaki

Akihiro Taguchi

Toshiya Sugai

Eiichi Fuse

Makoto Miyawaki

Yoshihito Shimizu

Hitoshi Mizno

Hiroyuki Nagamizu

A surgical operation apparatus according to the present invention comprises an insert section, a first jaw that has a first grip section, and that turns about a first pivot provided at the insert section, a second jaw that has a second grip section, and that turns about a second pivot provided at the first jaw, the second grip section forming a contacted/spaced face to be contacted or spaced relevant to a grip object in collaboration with the first grip section, a first driving rod connected to a first jaw, a second driving rod connected to a second jaw, and a driving mechanism, the driving mechanism being adopted to drive the first and second driving rods to be advanced or retracted.

Surgical operation apparatus

A medical treatment instrument is provided with a treatment section for treating issue, an insertion section which has at one end the treatment section, and an operating section which is provided at the other end of the insertion section, operates the treatment section, and has a fixed portion and a movable portion. The treatment section is actuated by pivoting the movable portion with respect to the fixed portion. The medical treatment instrument is further provided with an actuating main body and a cover. The cover is displaceable between a first position in which the medical treatment instrument is used and a second position in which the inside of the operating section is uncovered.

Medical treatment instrument

An ultrasonic surgical apparatus of the present invention includes a vibration transmitting member for transmitting an ultrasonic vibration, a probe provided at a far end of the vibration transmitting member, a jaw adapted to grasp a tissue of interest relative to the probe, a jaw holding member movably supporting the jaw, an operation drive rod connected to the jaw, and an operation unit for operating the operation drive rod. A stopper tube is provided on the operation drive rod conductive to the opening/closing operation of the jaw and an opening/closing terminal position of the jaw relative to the probe is restricted by abutting the stopper tube against the jaw holding member.

Ultrasonic surgical apparatus

A surgical instrument for fastening together opposing portions of a body organ. The instrument comprises a first support for supporting the first opposing portion of the body organ, a second support opposing the first support, for supporting the second opposing portion of the body organ, and a displacement-preventing member connected to the first or second support for preventing the supports from displacing relative to each other. The member comprises a pin protruding from one of the supports and a hole formed in the other of the supports. The pin is made of thermoplastic resin. When heated, the pin is softened and deformed, whereby the first and second supports are secured to each other, fastening together the opposing portions of the body organ.

Tissue-fixing surgical instrument, tissue-fixing device, and method of

An ultrasonic treatment apparatus comprises at least one hand piece, a plurality of probes, and an ultrasonic drive device. The hand piece has an ultrasonic oscillation device for generating ultrasonic vibration. Each probe is adapted to be attached to the hand piece and designed to transmit the ultrasonic vibration generated by the hand piece. The ultrasonic drive device is connected to the hand piece, for driving the ultrasonic oscillation device.

Ultrasonic treatment apparatus

A surgical instrument for fastening together opposing portions of a body organ. The instrument comprises a first support for supporting the first opposing portion of the body organ, a second support opposing the first support, for supporting the second opposing portion of the body organ, and a displacement-preventing member connected to the first or second support for preventing the supports from displacing relative to each other. The member comprises a pin protruding from one of the supports and a hole formed in the other of the supports. The pin is made of thermoplastic resin. When heated, the pins is softened and deformed, whereby the first and second supports are secured to each other, fastening together the opposing portions of the body organ.

Tissue fixing surgical instrument, tissue-fixing device, and method of

Tissue-fixing surgical device, and method of fixing tissues

A medical instrument performs at least one of suture and ligation to form a suitable knot in a piece of suture within a body cavity. This medical instrument includes a suture having a first end portion, a second end portion, and at least one loop formed in advance at an intermediate portion between the first and second end portions to have a predetermined size, and a suture suitable for application to a body tissue, and a cylindrical body for holding the loop to almost maintain the size thereof. The body has a fastening portion for fastening at least one portion of the suture. The medical instrument further includes an inserting instrument which is to be inserted into the body cavity, which has a distal end portion that can be arranged in the body cavity, and an operating portion, arranged outside the body, for operating the distal end portion thereof, and on which a holding member having the suture wound thereon is mounted. The distal end portion of the inserting instrument projects beyond the loop held by the holding member, and has a gripping member capable of gripping the suture. This inserting instrument causes the first end portion of the suture gripped near an insertion port to the body cavity and in the body cavity to pass through the loop, thereby forming a knot.

Suturing instrument

A surgical device for stapling and fastening body tissues, comprises an insertion section extending from an operation section for insertion into a body cavity, stapling member connected to a distal end of the insertion section, for treating body tissues with a high-frequency current within a body cavity. The stapling member includes an anvil and a cartridge between which the tissues are sandwiched, and a cutter. Staples are applied to the anvil from the cartridge for stapling the tissues and the cutter cuts the tissue while it applies a high-frequency current thereto.

Surgical device for stapling and/or fastening body tissues

Disclosed herein is a surgical device for applying surgical fasteners to body tissues in order to fasten the body tissues together. The device comprises an operation section having a housing having an inner space completely sealed from the outside, drive elements electrically driven and arranged in the inner space of the operation section, an insertion section including a housing which has a first end portion containing the fasteners and having an opening through which the fasteners are to be applied, and a second end portion removably coupled to the housing of the operation section, fastener-applying elements located in the housing of the insertion section, for applying the fasteners from the opening to body tissues, and force-transmitting elements for transmitting drive force from the drive elements to the fastener-applying elements.

Surgical device for stapling and fastening body tissues

An ultrasonic treatment apparatus comprises a hand piece, and an RF power supply unit. The hand piece includes vibrator cover, a sheath connected thereto, a hollow cylindrical member, an ultrasonic vibrator in the cover for generating ultrasonic vibrations, a probe arranged in the sheath, for externally transmitting ultrasonic vibrations generated by the vibrator, and a cord for transmitting a high-frequency current from the RF power supply unit to the probe. The cover and sheath are composed of an insulating member, for preventing the high-frequency current transmitted by the probe from being externally leaked.

Growing community of inventors

Hachioji, Japan

Toshihiko Suzuta