Patents by Inventor Tomohisa Sakurai

Tomohisa Sakurai 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).

  • Patent number: 8672935
    Abstract: An ultrasound treatment system comprises an ultrasonic transducer, a handpiece, a probe, a sheath, a clamping member, an operation unit, an operating member, a suction base, and a perfusion base. The ultrasonic transducer generates ultrasonic vibrations. The handpiece has the ultrasonic transducer incorporated therein. The probe is connected to the ultrasonic transducer for transmitting ultrasonic vibrations to a distal member realizing a stationary portion that is a treatment portion for treating a living tissue. The sheath serves as a protecting member for shielding the probe. The clamping member is opposed to the distal member at the distal end of the sheath for clamping a living tissue in cooperation with the distal member. The operation unit is manipulated for clamping a living tissue with the clamping member and distal member or freeing the living tissue therefrom.
    Type: Grant
    Filed: June 30, 2010
    Date of Patent: March 18, 2014
    Assignee: Olympus Corporation
    Inventors: Mitsumasa Okada, Toshiya Sugai, Yoshitaka Honda, Manabu Ishikawa, Tomohisa Sakurai
  • Patent number: 8574228
    Abstract: An ultrasound treatment system comprises an ultrasonic transducer, a handpiece, a probe, a sheath, a clamping member, an operation unit, an operating member, a suction base, and a perfusion base. The ultrasonic transducer generates ultrasonic vibrations. The handpiece has the ultrasonic transducer incorporated therein. The probe is connected to the ultrasonic transducer for transmitting ultrasonic vibrations to a distal member realizing a stationary portion that is a treatment portion for treating a living tissue. The sheath serves as a protecting member for shielding the probe. The clamping member is opposed to the distal member at the distal end of the sheath for clamping a living tissue in cooperation with the distal member. The operation unit is manipulated for clamping a living tissue with the clamping member and distal member or freeing the living tissue therefrom.
    Type: Grant
    Filed: June 30, 2010
    Date of Patent: November 5, 2013
    Assignee: Olympus Corporation
    Inventors: Mitsumasa Okada, Toshiya Sugai, Yoshitaka Honda, Manabu Ishikawa, Tomohisa Sakurai
  • Patent number: 7938779
    Abstract: In a treating apparatus, a forceps body as a treating device is connected to a generator as a control device. The forceps body mainly includes a pair of handle portions, which are used for manipulation by being held by an operator, a pair of jaws provided between the handle portion and the pair of jaws, which are used to coagulate/resect by grasping living-body tissue to be treated and a pair of scissors component members. A heating member, which is a heat generating source as a heat generating portion for applying heat energy to living-body tissue, is embedded at least one of the jaws. A pair of electrode portions, which is a treating energy generator, is provided to the pair of jaws. By supplying bipolar electric surgical knife current between the pair of electrode portions, high frequency current as treating energy is applied to the grasped living-body tissue.
    Type: Grant
    Filed: December 14, 2004
    Date of Patent: May 10, 2011
    Assignee: Olympus Corporation
    Inventors: Tomohisa Sakurai, Koji Iida, Hiroyuki Takahashi, Eiji Murakami, Akihisa Ogawa, Kenji Noda, Seiichi Hosoda, Takeaki Nakamura
  • Publication number: 20110004127
    Abstract: An ultrasound treatment system comprises an ultrasonic transducer, a handpiece, a probe, a sheath, a clamping member, an operation unit, an operating member, a suction base, and a perfusion base. The ultrasonic transducer generates ultrasonic vibrations. The handpiece has the ultrasonic transducer incorporated therein. The probe is connected to the ultrasonic transducer for transmitting ultrasonic vibrations to a distal member realizing a stationary portion that is a treatment portion for treating a living tissue. The sheath serves as a protecting member for shielding the probe. The clamping member is opposed to the distal member at the distal end of the sheath for clamping a living tissue in cooperation with the distal member. The operation unit is manipulated for clamping a living tissue with the clamping member and distal member or freeing the living tissue therefrom.
    Type: Application
    Filed: June 30, 2010
    Publication date: January 6, 2011
    Applicant: OLYMPUS CORPORATION
    Inventors: Mitsumasa Okada, Toshiya Sugai, Yoshitaka Honda, Manabu Ishikawa, Tomohisa Sakurai
  • Publication number: 20100324458
    Abstract: An ultrasound treatment system comprises an ultrasonic transducer, a handpiece, a probe, a sheath, a clamping member, an operation unit, an operating member, a suction base, and a perfusion base. The ultrasonic transducer generates ultrasonic vibrations. The handpiece has the ultrasonic transducer incorporated therein. The probe is connected to the ultrasonic transducer for transmitting ultrasonic vibrations to a distal member realizing a stationary portion that is a treatment portion for treating a living tissue. The sheath serves as a protecting member for shielding the probe. The clamping member is opposed to the distal member at the distal end of the sheath for clamping a living tissue in cooperation with the distal member. The operation unit is manipulated for clamping a living tissue with the clamping member and distal member or freeing the living tissue therefrom.
    Type: Application
    Filed: June 30, 2010
    Publication date: December 23, 2010
    Applicant: OLYMPUS CORPORATION
    Inventors: Mitsumasa Okada, Toshiya Sugai, Yoshitaka Honda, Manabu Ishikawa, Tomohisa Sakurai
  • Patent number: 7780659
    Abstract: An ultrasound treatment system in accordance with the present invention comprises an ultrasonic transducer, a handpiece, a probe, a sheath, a clamping member, an operation unit, an operating member, a suction base, and a perfusion base. The ultrasonic transducer generates ultrasonic vibrations. The handpiece has the ultrasonic transducer incorporated therein and serves as an operation unit. The probe is connected to the ultrasonic transducer, and serves as a vibration transmitting member for transmitting ultrasonic vibrations to a distal member realizing a stationary portion that is a treatment portion for treating a living tissue. The sheath serves as a protecting member for shielding the probe. The clamping member is opposed to the distal member at the distal end of the sheath, and realizes a movable portion that is another treatment portion for clamping a living tissue in cooperation with the distal member.
    Type: Grant
    Filed: August 29, 2003
    Date of Patent: August 24, 2010
    Assignee: Olympus Corporation
    Inventors: Mitsumasa Okada, Toshiya Sugai, Yoshitaka Honda, Manabu Ishikawa, Tomohisa Sakurai
  • Patent number: 7731677
    Abstract: An ultrasonic surgical system enables connection of a hand switch as well as a foot switch, which is used to operate a driving signal generator, without the necessity of retrofitting a main unit including the driving signal generator used to drive an ultrasonic transducer incorporated in a connected handpiece. An extension unit is included for connecting the foot switch and hand switch to the main unit. The foot switch and hand switch are connected to the main unit via the extension unit.
    Type: Grant
    Filed: May 19, 2004
    Date of Patent: June 8, 2010
    Assignee: Olympus Corporation
    Inventor: Tomohisa Sakurai
  • Patent number: 7682366
    Abstract: An ultrasonic lithotripter comprising a first transmission probe which has a hollow portion in the form of a through hole and transmits ultrasonic vibration and a superfine second transmission probe which can be passed through the hollow portion of the first transmission probe. An object of manipulation is held by means of the second transmission probe as it is manipulated by means of the first transmission probe.
    Type: Grant
    Filed: October 14, 2003
    Date of Patent: March 23, 2010
    Assignee: Olympus Corporation
    Inventors: Tomohisa Sakurai, Koji Shimomura, Shinji Hatta, Naomi Sekino, Hiroshi Okabe, Hiroo Ono, Tsuruo Hatori, Takeaki Nakamura
  • Patent number: 7645245
    Abstract: An endoscopic lithotripsy probe apparatus includes a probe, ultrasonic-vibration source, mechanical shock generation source, and switch-mechanism. The ultrasonic-vibration source is detachably attached to the probe to transmit an ultrasonic-vibration to the probe in a state in which the proximal end of the probe is connected to the ultrasonic-vibration source. The mechanical shock generation source, which is disposed on the side of the proximal end of the probe, applies a force to the ultrasonic-vibration source in a state in which the ultrasonic-vibration source is detached from the proximal end of the probe, and allows the ultrasonic-vibration source to collide with the proximal end of the probe so that a mechanical shock is applied to the probe. The switch-mechanism switches a state in which the ultrasonic-vibration from the ultrasonic-vibration source is transmitted to the probe and a state in which the mechanical shock from the mechanical shock generation source is transmitted.
    Type: Grant
    Filed: December 4, 2003
    Date of Patent: January 12, 2010
    Assignee: Olympus Corporation
    Inventors: Naomi Sekino, Tsuruo Hatori, Koji Shimomura, Hiroshi Okabe, Shinji Hatta, Hiroo Ono, Tomohisa Sakurai, Takeaki Nakamura
  • Publication number: 20090264881
    Abstract: An ultrasonic surgical system enables connection of a hand switch as well as a foot switch, which is used to operate a driving signal generator, without the necessity of retrofitting a main unit including the driving signal generator used to drive an ultrasonic transducer incorporated in a connected handpiece. An extension unit is included for connecting_the foot switch and hand switch to the main unit. The foot switch and hand switch are connected to the main unit via the extension unit.
    Type: Application
    Filed: June 29, 2009
    Publication date: October 22, 2009
    Applicant: OLYMPUS CORPORATION
    Inventor: Tomohisa SAKURAI
  • Patent number: 7270646
    Abstract: An ultrasonic driving apparatus consists mainly of a digital oscillatory circuit, an amplifier, a detection circuit, a phase difference detection circuit, a register, a data transfer circuit, and a switching circuit. The digital oscillatory circuit is used to drive an ultrasonic transducer at the resonance frequency of the ultrasonic transducer. The amplifier amplifies a driving signal output from the digital oscillatory circuit. The detection circuit detects the phase ?v of an applied voltage and the phase ?i of an induced current from the driving signal applied to the ultrasonic transducer via the amplifier. The phase difference detection circuit detects a difference between the phases ?v and ?i. The register holds digital frequency data with which a frequency at which the digital oscillatory circuit is oscillated is determined, and changes the digital frequency data. The data transfer circuit transfers the digital frequency data to the register.
    Type: Grant
    Filed: February 9, 2004
    Date of Patent: September 18, 2007
    Assignee: Olympus Corporation
    Inventors: Tomohisa Sakurai, Yoshitaka Honda, Kazue Tanaka, Hiroo Ono, Hiroyuki Takahashi
  • Patent number: 7229455
    Abstract: An ultrasonic calculus treatment apparatus includes a longitudinal-vibration piezoelectric oscillator for vibrating in the axial direction of an ultrasonic transmitting member and a torsional-vibration piezoelectric oscillator for vibrating about the axial direction, and further includes driving circuits for driving the piezoelectric oscillators at respective resonance frequencies and a mode selection switch for permitting the oscillators to vibrate independently or in combination, so that lithotripsy can be performed effectively in accordance with the size of a calculus or a function of an operating tool.
    Type: Grant
    Filed: August 20, 2002
    Date of Patent: June 12, 2007
    Assignee: Olympus Corporation
    Inventors: Tomohisa Sakurai, Ryoji Masubuchi, Yoshitaka Honda, Hiroo Ono
  • Publication number: 20070038160
    Abstract: This is a calculus breaking device comprising a first shock type probe for generating a first shock wave for breaking a calculus, a second shock type probe for generating a second shock wave different from the first shock wave and a control unit for switching between the first and second shock type probes to control and drive them.
    Type: Application
    Filed: August 23, 2006
    Publication date: February 15, 2007
    Inventors: Kazue Tanaka, Tomohisa Sakurai, Sumihito Konishi
  • Publication number: 20070016235
    Abstract: An ultrasonic surgical apparatus comprises an ultrasonic transducer for generating vibration in response to a drive signal to be given, and a treatment device having a probe to which the vibration is transferred from the ultrasonic transducer to effect treatment with the vibration. This device further comprises a signal generator for generating an AC signal for driving the ultrasonic transducer, and a modulator for modulating the AC signal generated by the signal generator to produce a drive signal to be given to the ultrasonic transducer.
    Type: Application
    Filed: December 2, 2005
    Publication date: January 18, 2007
    Inventors: Kazue Tanaka, Sumihito Konishi, Tatsuya Kubota, Tomohisa Sakurai, Shinji Hatta, Hiroo Ono, Hubert Baltes
  • Patent number: 7063692
    Abstract: A plurality of handpieces used to perform an operation is connected to a main operation apparatus, which generates a driving signal, through connectors formed on the main apparatus. When an operator holds a handpiece he/she wants to use, an output line over which the driving signal is transmitted is routed to the held handpiece owing to an output of a sensor that detects a change in capacitance stemming from the hold. The operator therefore need not manually set a mode in which the driving signal is applied to the handpiece he/she wants to use. Moreover, a port number assigned to a port to which the output line is routed is indicated on a display device. The operator can readily identify the usable handpiece.
    Type: Grant
    Filed: July 28, 2003
    Date of Patent: June 20, 2006
    Assignee: Olympus Corporation
    Inventors: Tomohisa Sakurai, Hiroyuki Takahashi, Masaru Sudo, Takeaki Nakamura, Keiji Shioda, Takashi Ozaki, Makoto Miyawaki
  • Publication number: 20050101945
    Abstract: In a treating apparatus, a forceps body as a treating device is connected to a generator as a control device. The forceps body mainly includes a pair of handle portions, which are used for manipulation by being held by an operator, a pair of jaws provided between the handle portion and the pair of jaws, which are used to coagulate/resect by grasping living-body tissue to be treated and a pair of scissors component members. A heating member, which is a heat generating source as a heat generating portion for applying heat energy to living-body tissue, is embedded at least one of the jaws. A pair of electrode portions, which is a treating energy generator, is provided to the pair of jaws. By supplying bipolar electric surgical knife current between the pair of electrode portions, high frequency current as treating energy is applied to the grasped living-body tissue.
    Type: Application
    Filed: December 14, 2004
    Publication date: May 12, 2005
    Applicant: OLYMPUS CORPORATION
    Inventors: Tomohisa Sakurai, Koji Iida, Hiroyuki Takahashi, Eiji Murakami, Akihisa Ogawa, Kenji Noda, Seiichi Hosoda, Takeaki Nakamura
  • Publication number: 20050033314
    Abstract: An ultrasonic lithotripter comprising a first transmission probe which has a hollow portion in the form of a through hole and transmits ultrasonic vibration and a superfine second transmission probe which can be passed through the hollow portion of the first transmission probe. An object of manipulation is held by means of the second transmission probe as it is manipulated by means of the first transmission probe.
    Type: Application
    Filed: October 14, 2003
    Publication date: February 10, 2005
    Inventors: Tomohisa Sakurai, Koji Shimomura, Shinji Hatta, Naomi Sekino, Hiroshi Okabe, Hiroo Ono, Tsuruo Hatori, Takeaki Nakamura
  • Publication number: 20050004589
    Abstract: An ultrasound treatment system in accordance with the present invention comprises an ultrasonic transducer, a handpiece, a probe, a sheath, a clamping member, an operation unit, an operating member, a suction base, and a perfusion base. The ultrasonic transducer generates ultrasonic vibrations. The handpiece has the ultrasonic transducer incorporated therein and serves as an operation unit. The probe is connected to the ultrasonic transducer, and serves as a vibration transmitting member for transmitting ultrasonic vibrations to a distal member realizing a stationary portion that is a treatment portion for treating a living tissue. The sheath serves as a protecting member for shielding the probe. The clamping member is opposed to the distal member at the distal end of the sheath, and realizes a movable portion that is another treatment portion for clamping a living tissue in cooperation with the distal member.
    Type: Application
    Filed: August 29, 2003
    Publication date: January 6, 2005
    Applicant: OLYMPUS OPTICAL CO., LD.
    Inventors: Mitsumasa Okada, Toshiya Sugai, Yoshitaka Honda, Manabu Ishikawa, Tomohisa Sakurai
  • Publication number: 20040236361
    Abstract: An ultrasonic surgical system enables connection of a hand switch as well as a foot switch, which is used to operate a driving signal generator, without the necessity of retrofitting a main unit including the driving signal generator used to drive an ultrasonic transducer incorporated in a connected handpiece. An extension unit is included for connecting the foot switch and hand switch to the main unit. The foot switch and hand switch are connected to the main unit via the extension unit.
    Type: Application
    Filed: June 22, 2004
    Publication date: November 25, 2004
    Applicant: Olympus Optical Co., Inc.
    Inventor: Tomohisa Sakurai
  • Publication number: 20040215131
    Abstract: An ultrasonic surgical system enables connection of a hand switch as well as a foot switch, which is used to operate a driving signal generator, without the necessity of retrofitting a main unit including the driving signal generator used to drive an ultrasonic transducer incorporated in a connected handpiece. An extension unit is included for connecting the foot switch and hand switch to the main unit. The foot switch and hand switch are connected to the main unit via the extension unit.
    Type: Application
    Filed: May 19, 2004
    Publication date: October 28, 2004
    Applicant: Olympus Optical Co., Inc.
    Inventor: Tomohisa Sakurai