Patents by Inventor Toshihiko Suzuta

Toshihiko Suzuta has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20200266009
    Abstract: An operation switch includes a concave portion in which an inner peripheral surface is constituted by a first inclined surface that is reduced in diameter toward a bottom portion from an external surface of a frame and a cylindrical portion that is formed in a pressing type operation button mounted on the concave portion and in which an outer peripheral surface is constituted by a second inclined surface that has a gradient larger than a gradient of the first inclined surface and faces the inner peripheral surface of the concave portion.
    Type: Application
    Filed: May 5, 2020
    Publication date: August 20, 2020
    Applicant: OLYMPUS CORPORATION
    Inventors: Masami SHIMIZU, Shigeyasu KISHIOKA, Yoki ONISHI, Toshihiko SUZUTA
  • Patent number: 6592572
    Abstract: 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.
    Type: Grant
    Filed: November 20, 2000
    Date of Patent: July 15, 2003
    Assignee: Olympus Optical Co., Ltd.
    Inventor: Toshihiko Suzuta
  • Patent number: 6099537
    Abstract: 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.
    Type: Grant
    Filed: February 25, 1997
    Date of Patent: August 8, 2000
    Assignee: Olympus Optical Co., Ltd.
    Inventors: Toshiya Sugai, Hiroyuki Nagamizu, Minoru Tsuruta, Yoshihito Shimizu, Toshihiko Suzuta, Norikiyo Shibata, Shinichi Nishigaki, Naoki Uchiyama, Yoshinao Oaki
  • Patent number: 6066151
    Abstract: 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.
    Type: Grant
    Filed: December 8, 1998
    Date of Patent: May 23, 2000
    Assignee: Olympus Optical Co., Ltd.
    Inventors: Makoto Miyawaki, Mitsumasa Okada, Toshihiko Suzuta
  • Patent number: 5906625
    Abstract: 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.
    Type: Grant
    Filed: February 28, 1997
    Date of Patent: May 25, 1999
    Assignee: Olympus Optical Co., Ltd.
    Inventors: Shiro Bito, Isami Hirao, Kazuhiko Oozeki, Minoru Tsuruta, Akito Mukaizawa, Akio Nakada, Tsuyoshi Tsukagoshi, Toshihiko Suzuta, Shuichi Kimura, Seiji Kuramoto, Naoki Uchiyama, Norikiyo Shibata
  • Patent number: 5836897
    Abstract: 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.
    Type: Grant
    Filed: August 14, 1997
    Date of Patent: November 17, 1998
    Assignee: Olympus Optical Co., Ltd.
    Inventors: Tomohisa Sakurai, Hideo Nagazumi, Kazuya Hijii, Toshihiko Suzuta, Masahiro Kudo, Kenji Yoshino, Tetsumaru Kubota, Tatsuya Kubota, Hiroaki Kagawa, Yuichi Ikeda, Mitsumasa Okada, Hitoshi Karasawa, Tadao Hagino
  • Patent number: 5797931
    Abstract: 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.
    Type: Grant
    Filed: March 22, 1996
    Date of Patent: August 25, 1998
    Assignee: Olympus Optical Co., Ltd.
    Inventors: Shiro Bito, Isami Hirao, Kazuhiko Oozeki, Minoru Tsuruta, Akito Mukaizawa, Akio Nakada, Tsuyoshi Tsukagoshi, Shuichi Kimura, Toshihiko Suzuta, Seiji Kuramoto, Naoki Uchiyama
  • Patent number: 5688235
    Abstract: 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.
    Type: Grant
    Filed: August 27, 1996
    Date of Patent: November 18, 1997
    Assignee: Olympus Optical Co., Ltd.
    Inventors: Tomohisa Sakurai, Hideo Nagazumi, Kazuya Hijii, Toshihiko Suzuta, Masahiro Kudo, Kenji Yoshino, Tetsumaru Kubota, Tatsuya Kubota, Hiroaki Kagawa, Yuichi Ikeda, Mitsumasa Okada, Hitoshi Karasawa, Tadao Hagino
  • Patent number: 5658300
    Abstract: 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.
    Type: Grant
    Filed: February 3, 1995
    Date of Patent: August 19, 1997
    Assignee: Olympus Optical Co., Ltd.
    Inventors: Shiro Bito, Isami Hirao, Kazuhiko Oozeki, Minoru Tsuruta, Akito Mukaizawa, Akio Nakada, Tsuyoshi Tsukagoshi, Shuichi Kimura, Toshihiko Suzuta, Seiji Kuramoto
  • Patent number: 5649937
    Abstract: 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.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: July 22, 1997
    Assignee: Olympus Optical Co., Ltd.
    Inventors: Shiro Bito, Isami Hirao, Kazuhiko Oozeki, Minoru Tsuruta, Akito Mukaizawa, Akio Nakada, Tsuyoshi Tsukagoshi, Shuichi Kimura, Toshihiko Suzuta, Seiji Kuramoto
  • Patent number: 5643293
    Abstract: 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.
    Type: Grant
    Filed: December 21, 1994
    Date of Patent: July 1, 1997
    Assignee: Olympus Optical Co., Ltd.
    Inventors: Takahiro Kogasaka, Toshihiko Suzuta, Shiro Bito, Minoru Tsuruta, Naoki Uchiyama, Kunihide Kaji
  • Patent number: 5582611
    Abstract: 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.
    Type: Grant
    Filed: November 14, 1994
    Date of Patent: December 10, 1996
    Assignee: Olympus Optical Co., Ltd.
    Inventors: Minoru Tsuruta, Shiro Bito, Shuichi Kimura, Seiji Kuramoto, Tsuyoshi Tsukagoshi, Akio Nakata, Toshihiko Suzuta
  • Patent number: 5467911
    Abstract: 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.
    Type: Grant
    Filed: April 22, 1994
    Date of Patent: November 21, 1995
    Assignee: Olympus Optical Co., Ltd.
    Inventors: Minoru Tsuruta, Toshihiko Suzuta, Akio Nakada, Seiji Kuramoto, Hiroki Hibino, Shiro Bito, Akito Mukaizawa
  • Patent number: 5391144
    Abstract: 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.
    Type: Grant
    Filed: July 20, 1993
    Date of Patent: February 21, 1995
    Assignee: Olympus Optical Co., Ltd.
    Inventors: Tomohisa Sakurai, Hideo Nagazumi, Kazuya Hijii, Toshihiko Suzuta, Masahiro Kudo, Kenji Yoshino, Tetsumaru Kubota, Tatsuya Kubota, Hiroaki Kagawa, Yuichi Ikeda, Mitsumasa Okada, Hitoshi Karasawa, Tadao Hagino
  • Patent number: 5389098
    Abstract: 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.
    Type: Grant
    Filed: May 14, 1993
    Date of Patent: February 14, 1995
    Assignee: Olympus Optical Co., Ltd.
    Inventors: Minoru Tsuruta, Shiro Bito, Shuichi Kimura, Akito Mukaizawa, Seiji Kuramoto, Tsuyoshi Tsukagoshi, Akio Nakata, Akihiro Taguchi, Kazuhiko Oozeki, Hitoshi Mizno, Shuichi Takayama, Yoshinao Oaki, Keisuke Saito, Toshihiko Suzuta
  • Patent number: 5211625
    Abstract: 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.
    Type: Grant
    Filed: March 15, 1991
    Date of Patent: May 18, 1993
    Assignee: Olympus Optical Co., Ltd.
    Inventors: Tomohisa Sakurai, Tetsumaru Kubota, Tatsuya Kubota, Hiroaki Kagawa, Yuichi Ikeda, Mitsumasa Okada, Hitoshi Karasawa, Hideo Nagazumi, Kazuya Hijii, Toshihiko Suzuta, Masahiro Kudo, Kenji Yoshino, Tadao Hagino
  • Patent number: 5198713
    Abstract: In an ultrasonic transducer apparatus, one of ultrasonic transducer probes of a plurality of types is selectively connected to a driving unit. The ultrasonic probe includes an ultrasonic transducer having a series connection of an inductor, a resistor, and a capacitor, and a dumping capacitor connected in parallel with the series connection. The driving unit includes a driving circuit for supplying to the ultrasonic transducer a driving signal having a frequency where a phase difference between a voltage applied to the ultrasonic transducer and a current supplied to the ultrasonic transducer is substantially set to be zero, and an inductor connected to an output terminal of the driving circuit to be connected in parallel with the ultrasonic transducer. The inductor includes a plurality of intermediate taps having a different inductances, and each tap is connected to a connection terminal of the probe.
    Type: Grant
    Filed: July 12, 1991
    Date of Patent: March 30, 1993
    Assignee: Olympus Optical Co., Ltd.
    Inventor: Toshihiko Suzuta
  • Patent number: 5163433
    Abstract: An ultrasound type treatment apparatus includes an inner sheath covering an ultrasonic transmission member having a first suction passage and defining a space relative to the ultrasound transmission member and an outer sheath covering the inner sheath and defining a space relative to the inner sheath. In the treatment apparatus, a liquid medium supply passage is provided at one of the space between the ultrasound transmission member and the inner sheath and space between the inner sheet and the outer sheet to supply a liquid medium to the distal end of the ultrasound transmission member. A second suction passage is formed at the other of the space between the ultrasound transmission means and the inner sheath and space between the inner sheath and the outer sheath. The first suction passage is connected by a suction tube to the second suction passage.
    Type: Grant
    Filed: October 21, 1991
    Date of Patent: November 17, 1992
    Assignee: Olympus Optical Co., Ltd.
    Inventors: Hiroaki Kagawa, Tomohisa Sakurai, Tetsumaru Kubota, Hitoshi Karasawa, Tatsuya Kubota, Yuichi Ikeda, Mitsumasa Okada, Toshihiko Suzuta, Hideo Nagazumi, Kazuya Hijii, Masahiro Kudo, Kenji Yoshino, Tadao Hagino
  • Patent number: 5087850
    Abstract: In an ultrasonic transducer apparatus, one of ultrasonic transducer probes of a plurality of types is selectively connected to a driving unit. The ultrasonic probe includes an ultrasonic transducer having a series connection of an inductor, a resistor, and a capacitor, and a dumping capacitor connected in parallel with the series connection. The driving unit includes a driving circuit for supplying to the ultrasonic transducer a driving signal having a frequency where a phase difference between a voltage applied to the ultrasonic transducer and a current supplied to the ultrasonic transducer is substantially set to be zero, and an inductor connected to an output terminal of the driving circuit to be connected in parallel with the ultrasonic transducer. The inductor includes a plurality of intermediate taps having a different inductances, and each tap is connected to a connection terminal of the probe.
    Type: Grant
    Filed: January 9, 1990
    Date of Patent: February 11, 1992
    Assignee: Olympus Optical Co., Ltd.
    Inventor: Toshihiko Suzuta
  • Patent number: 5076276
    Abstract: An ultrasound type treatment apparatus includes an ultrasonic oscillation device for outputting an ultrasonic oscillation wave, a drive circuit for driving the ultrasonic oscillation device, a probe connected to the ultrasonic oscillation device to transmit that ultrasonic oscillation wave to an affected region of interest of a human being, a sheath formed around the probe, through which cooling medium is passed and a supply tank for supplying cooling medium to the sheath. In this treatment apparatus, an arithmetic operation circuit monitors a drive state of the ultrasonic oscillation device, a comparator is provided for receiving monitor information from the arithmetic operation circuit and for determining whether or not the supply of cooling medium to the sheath is normal and a controller is provided for stopping a drive of the ultrasonic oscillation device when the supply of the cooling medium is determined by the comparator as being not normal.
    Type: Grant
    Filed: August 24, 1990
    Date of Patent: December 31, 1991
    Assignee: Olympus Optical Co., Ltd.
    Inventors: Tomohisa Sakurai, Tetsumaru Kubota, Hitoshi Karasawa, Tatsuya Kubota, Yuichi Ikeda, Mitsumasa Okada, Toshihiko Suzuta, Hideo Nagazumi, Kazuya Hijii, Masahiro Kudo, Hiroaki Kagawa, Kenji Yoshino, Tadao Hagino