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).
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Publication number: 20040162509Abstract: 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 &thgr;v of an applied voltage and the phase &thgr;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 &thgr;v and &thgr;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: ApplicationFiled: February 9, 2004Publication date: August 19, 2004Applicant: OLYMPUS CORPORATIONInventors: Tomohisa Sakurai, Yoshitaka Honda, Kazue Tanaka, Hiroo Ono, Hiroyuki Takahashi
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Publication number: 20040138594Abstract: 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: ApplicationFiled: December 4, 2003Publication date: July 15, 2004Inventors: Naomi Sekino, Tsuruo Hatori, Koji Shimomura, Hiroshi Okabe, Shinji Hatta, Hiroo Ono, Tomohisa Sakurai, Takeaki Nakamura
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Patent number: 6761698Abstract: An ultrasonic operation system includes: a transmission cable that is connected detachably, through a connector, to a connector receptacle in a main apparatus unit; plural types of transducers provided with a connector receptacle each capable of detachably connecting the connector of the transmission cable, an identification element for outputting its own identification signal, and a ultrasonic vibrator, correspondingly; and a main apparatus unit for receiving the identification signals in an identification circuit, automatically controlling drive signals that a control circuit causes a drive signal generator unit to generate, and automatically displaying the identified instrument on a control-display unit.Type: GrantFiled: July 27, 2001Date of Patent: July 13, 2004Assignee: Olympus CorporationInventors: Norikiyo Shibata, Mitsumasa Okada, Manabu Ishikawa, Tomohisa Sakurai, Hitoshi Karasawa
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Patent number: 6761690Abstract: An ultrasonic operation system includes a handpiece having an ultrasonic transducer, which treats a living tissue using ultrasonic oscillations. The system includes a driving signal oscillator for producing a driving signal for driving the ultrasonic transducer and supplying the driving signal to the handpiece; a sweep circuit for sweeping a frequency of the driving signal; a data transfer circuit for transferring start frequency data to the sweep circuit to start sweeping the frequency of the driving signal; a detection circuit for detecting a resonance frequency of the handpiece based on the driving signal of which the frequency has been swept by the sweep circuit; and a chase lock loop (PLL) circuit for locking the frequency of an output current onto the resonance frequency; and, a switch for switching between the PLL circuit and the sweep circuit according to a detection result from the detection circuit.Type: GrantFiled: April 16, 2003Date of Patent: July 13, 2004Assignee: Olympus CorporationInventors: Tomohisa Sakurai, Yoshitaka Honda, Kazue Tanaka, Hiroo Ono, Hiroyuki Takahashi
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Publication number: 20040133189Abstract: A surgical operation apparatus includes a surgical instrument; a drive device that generates an energy with which the surgical instrument works; and an energy transmission cable. The surgical operation apparatus also includes a first connector provided on one end of the cable; an energy release unit that releases the energy out of the first connector; a second connector that is detachable from the first connector; an energy receiving unit that receives the energy released from the energy release unit, and an operation functioning unit that functions based on the energy received.Type: ApplicationFiled: December 22, 2003Publication date: July 8, 2004Applicant: OLYMPUS CORPORATIONInventor: Tomohisa Sakurai
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Publication number: 20040116952Abstract: A surgical instrument can be disinfected or sterilized, and has a rechargeable secondary battery incorporated therein. A distal treatment section of the surgical instrument is ultrasonically oscillated using the secondary battery as a driving power source and used to perform surgery on a living tissue. Electromagnetic energy generated by an energy generation unit located outside the surgical instrument is received by a reception coil incorporated in the surgical instrument with the surgical instrument held in noncontact with the energy generation unit. The electromagnetic energy is then converted into charging power with which the secondary battery is recharged. Thus, the surgical instrument can be readily recharged while left clean.Type: ApplicationFiled: December 3, 2003Publication date: June 17, 2004Applicant: Olympus Optical Co., Ltd.Inventors: Tomohisa Sakurai, Shinji Hatta, Akira Shiga, Tsuyoshi Tsukagoshi, Koji Yasunaga, Masaru Karasawa, Hiroyuki Sangu, Takeaki Nakamura
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Publication number: 20040019347Abstract: 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: ApplicationFiled: July 28, 2003Publication date: January 29, 2004Applicant: OLYMPUS OPTICAL CO., LTD.Inventors: Tomohisa Sakurai, Hiroyuki Takahashi, Masaru Sudo, Takeaki Nakamura, Keiji Shioda, Takashi Ozaki, Makoto Miyawaki
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Patent number: 6679875Abstract: A medical treatment system has medical treatment equipment and a control device that controls the operation of this medical treatment equipment. The medical treatment equipment has an operation control section that controls operation of a therapeutic instrument connected to the medical treatment equipment with respect to a selected single function thereof. The control device is constructed including a hand switch and foot switch. This hand switch and foot switch are provided with mode input sections. Also, the foot switch has an operating switch.Type: GrantFiled: February 12, 2002Date of Patent: January 20, 2004Assignee: Olympus CorporationInventors: Yoshitaka Honda, Tomohisa Sakurai, Kazue Tanaka, Taro Miyazawa
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Publication number: 20040010267Abstract: A calculus treatment apparatus includes first and second probe which transmit first and second mechanical energy to a distal end side thereof and pulverize a calculus by the first and second mechanical energy, and first and second mechanical energy generating devices which are arranged on a proximal end side of the first and second probes and generate the first and second mechanical energy. A probe arrangement structure is provided in which the first probe and the second probe are arranged substantially coaxially or concentrically.Type: ApplicationFiled: July 10, 2003Publication date: January 15, 2004Applicant: OLYMPUS OPTICAL CO., LTD.Inventors: Takeaki Nakamura, Tsuruo Hatori, Tomohisa Sakurai, Koji Shimomura, Hiroo Ono, Shinji Hatta, Naomi Sekino, Hiroshi Okabe
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Patent number: 6669690Abstract: 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: GrantFiled: July 15, 1999Date of Patent: December 30, 2003Assignee: Olympus Optical Co., Ltd.Inventors: Mitsumasa Okada, Toshiya Sugai, Yoshitaka Honda, Manabu Ishikawa, Tomohisa Sakurai
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Patent number: 6666875Abstract: A surgical instrument can be disinfected or sterilized, and has a rechargeable secondary battery incorporated therein. A distal treatment section of the surgical instrument is ultrasonically oscillated or otherwise activated using the secondary battery as a driving power source to perform surgery on a living tissue. Electromagnetic energy generated by an energy generation unit located outside the surgical instrument is received by a reception coil incorporated in the surgical instrument with the surgical instrument by induction from the energy generation unit. The electromagnetic energy is then converted into charging power with which the secondary battery is recharged. Thus, the surgical instrument can be readily recharged without compromising sterility.Type: GrantFiled: January 27, 2000Date of Patent: December 23, 2003Assignee: Olympus Optical Co., Ltd.Inventors: Tomohisa Sakurai, Shinji Hatta, Akira Shiga, Tsuyoshi Tsukagoshi, Koji Yasunaga, Masaru Karasawa, Hiroyuki Sangu, Takeaki Nakamura
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Publication number: 20030199793Abstract: 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 &thgr;v of an applied voltage and the phase &thgr;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 &thgr;v and &thgr;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: ApplicationFiled: April 16, 2003Publication date: October 23, 2003Applicant: OLYMPUS OPTICAL CO., LTD.Inventors: Tomohisa Sakurai, Yoshitaka Honda, Kazue Tanaka, Hiroo Ono, Hiroyuki Takahashi
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Publication number: 20030199794Abstract: In an ultrasonic operating apparatus, a storage medium which stores characteristic information on an ultrasonic probe is provided in the probe side (in the probe itself or in a dedicated transducer of the probe), and management of driving conditions for the probe and/or the use history of the probe is performed by using the characteristic information. Examples of the characteristic information are identification information and use history information as to the probe. For example, in the case where identification information on a probe is recorded on a recording medium, a control device for driving and controlling the probe determines driving conditions suitable for the probe by using the identification information, and drives an ultrasonic vibrator under the driving conditions. In the case where the use history of the probe is recorded on the recording medium, the control device updates the use history information.Type: ApplicationFiled: April 16, 2003Publication date: October 23, 2003Applicant: OLYMPUS OPTICAL CO., LTD.Inventors: Tomohisa Sakurai, Hiroyuki Takahashi
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Patent number: 6623423Abstract: 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: GrantFiled: February 27, 2001Date of Patent: September 23, 2003Assignee: Olympus Optical Co., Ltd.Inventors: Tomohisa Sakurai, Hiroyuki Takahashi, Masaru Sudo, Takeaki Nakamura, Keiji Shioda, Takashi Ozaki, Makoto Miyawaki
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Patent number: 6569109Abstract: 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 &thgr;v of an applied voltage and the phase &thgr;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 &thgr;v and &thgr;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: GrantFiled: January 31, 2001Date of Patent: May 27, 2003Assignee: Olympus Optical Co., Ltd.Inventors: Tomohisa Sakurai, Yoshitaka Honda, Kazue Tanaka, Hiroo Ono, Hiroyuki Takahashi
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Publication number: 20030073987Abstract: 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: ApplicationFiled: October 16, 2002Publication date: April 17, 2003Applicant: OLYMPUS OPTICAL CO., LTD.Inventors: Tomohisa Sakurai, Koji Iida, Hiroyuki Takahashi, Eiji Murakami, Akihisa Ogawa, Kenji Noda, Seiichi Hosoda, Takeaki Nakamura
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Publication number: 20030045887Abstract: 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: ApplicationFiled: August 20, 2002Publication date: March 6, 2003Applicant: OLYMPUS OPTICAL CO., LTD.Inventors: Tomohisa Sakurai, Ryoji Masubuchi, Yoshitaka Honda, Hiroo Ono
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Publication number: 20020156466Abstract: A surgical system is capable of easily selecting one of treating tools used in surgical treatment by operating a push button switch provided on a remote controller disposed near a corresponding treating tool. When a remote controller is operated, an ID signal uniquely assigned to the remote controller is transmitted using a radio wave to a foot switch controller. An ID discriminator discriminates the ID transmitted from the remote controller thereby determining which remote controller has been selected. A selection acknowledgement signal is returned to the operated remote controller. In response, an LED disposed on the operated remote controller is lit so that a human operator can easily recognize that the remote controller has been selected.Type: ApplicationFiled: April 16, 2002Publication date: October 24, 2002Applicant: OLYMPUS OPTICAL CO., LTD.Inventors: Tomohisa Sakurai, Yoshitaka Honda, Kazue Tanaka
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Publication number: 20020115917Abstract: A medical treatment system has medical treatment equipment and a control device that controls the operation of this medical treatment equipment. The medical treatment equipment has an operation control section that controls operation of a therapeutic instrument connected to the medical treatment equipment with respect to a selected single function thereof. The control device is constructed including a hand switch and foot switch. This hand switch and foot switch are provided with mode input sections. Also, the foot switch has an operating switch.Type: ApplicationFiled: February 12, 2002Publication date: August 22, 2002Applicant: OLYMPUS OPTICAL CO., LTD.Inventors: Yoshitaka Honda, Tomohisa Sakurai, Kazue Tanaka, Taro Miyazawa
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Publication number: 20020107538Abstract: An ultrasonic operation system comprises: a transmission cable that is connected detachably, through a connector, to a connector receptacle in a main apparatus unit; plural types of transducers provided with a connector receptacle each capable of detachably connecting the connector of the transmission cable, an identification element for outputting its own identification signal, and a ultrasonic vibrator, correspondingly; and a main apparatus unit for receiving the identification signals in an identification circuit, automatically controlling drive signals that a control circuit causes a drive signal generator unit to generate, and automatically displaying the identified instrument on a control-display unit.Type: ApplicationFiled: July 27, 2001Publication date: August 8, 2002Inventors: Norikiyo Shibata, Mitsumasa Okada, Manabu Ishikawa, Tomohisa Sakurai, Hitoshi Karasawa