Patents by Inventor Yukihiko Sawada
Yukihiko Sawada 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: 20240285302Abstract: An ultrasound treatment tool includes: an ultrasound transducer configured to generate ultrasound vibration; a vibration transmission portion configured to transmit the ultrasound vibration; and a fastener that includes a first fastening portion screwed with the ultrasound transducer and a second fastening portion screwed with the vibration transmission portion, the fastener being configure to connect the ultrasound transducer and the vibration transmission portion. The fastener is configured with a material that has a higher strength than a proximal end portion of the vibration transmission portion, the proximal end portion being screwed with the second fastening portion.Type: ApplicationFiled: May 6, 2024Publication date: August 29, 2024Inventors: Yasuhiro MAEDA, Minoru KATSUMATA, Yukihiko SAWADA, Hideto YOSHIMINE, Hiroshi ASHIBA, Satoshi SHIMABUKURO, Shunsuke MATSUI
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Publication number: 20240288020Abstract: A fastener includes: a main body including a first fastening portion configured to be screwed together with a ultrasound transducer configured to generate ultrasound vibration, and a second fastening portion configured to be screwed together with a vibration transmission portion configured to transmit the ultrasound vibration, the main body being configure to connect the ultrasound transducer and the vibration transmission portion; and a rupture portion configured to be ruptured as a result of a specific torque being applied when the first fastening portion is screwed together with the ultrasound transducer or when the second fastening portion is screwed together with the vibration transmission portion.Type: ApplicationFiled: May 8, 2024Publication date: August 29, 2024Inventors: Yasuhiro MAEDA, Yukihiko SAWADA, Hideto YOSHIMINE, Minoru KATSUMATA, Hiroshi ASHIBA, Shunsuke MATSUI
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Patent number: 10786276Abstract: A medical device includes, a vibration transmitting member configured to be capable of transmitting vibration for use in a treatment; a jaw configured to move between an abutted position where the jaw abuts on the vibration transmitting member, and a spaced position where the jaw is spaced apart from the vibration transmitting member; and a cover provided in such a position that the vibration transmitting member is interposed between the cover and the jaw, and configured such that a first distal portion, which is located at a distal end of the cover, comes in contact with the vibration transmitting member, when the jaw is located in the abutted position.Type: GrantFiled: October 10, 2017Date of Patent: September 29, 2020Assignee: OLYMPUS CORPORATIONInventors: Yuji Hirai, Yukihiko Sawada, Tsunetaka Akagane
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Publication number: 20180042638Abstract: A medical device includes, a vibration transmitting member configured to be capable of transmitting vibration for use in a treatment; a jaw configured to move between an abutted position where the jaw abuts on the vibration transmitting member, and a spaced position where the jaw is spaced apart from the vibration transmitting member; and a cover provided in such a position that the vibration transmitting member is interposed between the cover and the jaw, and configured such that a first distal portion, which is located at a distal end of the cover, comes in contact with the vibration transmitting member, when the jaw is located in the abutted position.Type: ApplicationFiled: October 10, 2017Publication date: February 15, 2018Applicant: OLYMPUS CORPORATIONInventors: Yuji HIRAI, Yukihiko SAWADA, Tsunetaka AKAGANE
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Patent number: 9839796Abstract: An ultrasonic treatment device includes a connecting unit. The connecting unit including a first engagement portion which engages with a first screw portion and a second engagement portion which engages with a second screw portion, the connecting unit connecting a probe and a vibration generating unit to transmit the ultrasonic vibrations to the probe by rotation relative to the vibration generating unit and a treatment unit in a first direction around a longitudinal axis, and disconnecting the probe and the vibration generating unit from each other by rotation in a second direction opposite to the first direction.Type: GrantFiled: May 19, 2016Date of Patent: December 12, 2017Assignee: OLYMPUS CORPORATIONInventor: Yukihiko Sawada
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Publication number: 20160263403Abstract: An ultrasonic treatment device includes a connecting unit. The connecting unit including a first engagement portion which engages with a first screw portion and a second engagement portion which engages with a second screw portion, the connecting unit connecting a probe and a vibration generating unit to transmit the ultrasonic vibrations to the probe by rotation relative to the vibration generating unit and a treatment unit in a first direction around a longitudinal axis, and disconnecting the probe and the vibration generating unit from each other by rotation in a second direction opposite to the first direction.Type: ApplicationFiled: May 19, 2016Publication date: September 15, 2016Applicant: OLYMPUS CORPORATIONInventor: Yukihiko SAWADA
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Patent number: 9149292Abstract: A probe which is configured for a treatment device which is configured to treat a body tissue using ultrasonic vibration, includes a base member which includes a base surface defined by a longitudinal direction and a width direction shorter than the longitudinal direction and which is a vibration-retardation member configured to hardly transmit the ultrasonic vibration, a waveguide main body which has a width smaller than a width of the base surface in a width direction, protrudes with respect to the base surface, and is extended along the longitudinal direction of the base surface, and an end effecter which is provided at a tip end portion of the waveguide main body and which is configured to treat the body tissue by the ultrasonic vibration transmitted through the waveguide main body.Type: GrantFiled: June 25, 2012Date of Patent: October 6, 2015Assignee: OLYMPUS CORPORATIONInventors: Yukihiko Sawada, Norihiro Yamada
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Publication number: 20150025517Abstract: A probe treating a living tissue in cooperation with a jaw pivoting on a supporting point includes a treatment portion including a proximal end to which ultrasonic vibration generated from an ultrasonic transducer unit is transmitted; a distal end to which the ultrasonic vibration is transmitted from the proximal end; a holding surface holding the living tissue between the holding surface and the jaw; a back surface serving as a rear surface of the holding surface; a side surface extending from the proximal end to the distal end and being different from the holding surface; and a stress release portion provided between the distal end and the proximal end and on the side surface and releasing stress to stop development of a crack when the crack is produced in the holding surface or the back surface by external forces applied during the treatment of the living tissue.Type: ApplicationFiled: July 14, 2014Publication date: January 22, 2015Inventor: Yukihiko SAWADA
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Patent number: 8858439Abstract: An ultrasound operation apparatus includes an ultrasound transducer; a drive section that drives the ultrasound transducer using a drive signal; a probe that has a proximal end section in which the ultrasound transducer is provided and a distal end section to which ultrasound vibrations are transmitted, and that performs treatment for living tissue by using ultrasound vibrations at the distal end section; a resonance frequency tracking section that drives so as to cause ultrasound vibrations to be generated at a resonance frequency; a detection section that detects a frequency component signal of a frequency component other than a resonance frequency of the drive signal; and a cavitation suppression control section that controls so as to suppress or eliminate cavitations according to the detection result.Type: GrantFiled: June 3, 2009Date of Patent: October 14, 2014Assignee: Olympus Medical Systems Corp.Inventors: Kazue Tanaka, Yukihiko Sawada, Satoshi Honma
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Patent number: 8845537Abstract: An ultrasound operation apparatus includes an ultrasound transducer; a drive section that drives the ultrasound transducer by means of a drive signal; a probe that has a proximal end section in which the ultrasound transducer is provided and a distal end section to which ultrasound vibrations are transmitted, and that performs treatment for living tissue by using ultrasound vibrations at the distal end section; a detection section that detects from the drive signal a physical quantity that changes due to cavitations generated by ultrasound vibrations of the distal end section and an output control section that controls the output of the drive section so as to generate cavitations or to increase or maintain a generation amount in accordance with the detected physical quantity.Type: GrantFiled: June 3, 2009Date of Patent: September 30, 2014Assignee: Olympus Medical Systems Corp.Inventors: Kazue Tanaka, Yukihiko Sawada, Satoshi Honma
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Patent number: 8740821Abstract: A treatment apparatus includes an ultrasonic vibration source, an ultrasonic treatment portion which is configured to treat living tissue by ultrasonic vibration transmitted from the ultrasonic vibration source, and a micrograin feeder which is configured to supply liquid containing micrograins to between the ultrasonic treatment portion and the living tissue. Whole micrograins within the micrograin-containing solution has a grain size equal to or smaller than an amplitude of the ultrasonic vibration.Type: GrantFiled: July 27, 2012Date of Patent: June 3, 2014Assignee: Olympus Medical Systems Corp.Inventors: Norihiro Yamada, Yukihiko Sawada, Tamaki Watanabe
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Patent number: 8398551Abstract: It becomes possible to obtain high sound pressure in a high frequency domain by a capacitive ultrasonic transducer which comprises a membrane on which one electrode is formed, a cavity constructed in its backface, and a substrate on which these are mounted and supported and on whose surface an electrode is provided, on a surface in an ultrasonic transmission and reception side, characterized in that the membrane comprises tow or more layers, and at least one layer of them comprises a high dielectric constant film.Type: GrantFiled: February 6, 2008Date of Patent: March 19, 2013Assignee: Olympus CorporationInventors: Hideo Adachi, Yukihiko Sawada, Katsuhiro Wakabayashi, Akiko Mizunuma, Takuya Imahashi, Etsuko Omura, Yoshiyuki Okuno, Shuji Otani, Miyuki Murakami, Kiyoshi Nemoto, Kozaburo Suzuki, Naomi Shimoda
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Publication number: 20130060169Abstract: A treatment apparatus includes an ultrasonic vibration source, an ultrasonic treatment portion which is configured to treat living tissue by ultrasonic vibration transmitted from the ultrasonic vibration source, and a micrograin feeder which is configured to supply liquid containing micrograins to between the ultrasonic treatment portion and the living tissue. Whole micrograins within the micrograin-containing solution has a grain size equal to or smaller than an amplitude of the ultrasonic vibration.Type: ApplicationFiled: July 27, 2012Publication date: March 7, 2013Inventors: Norihiro YAMADA, Yukihiko SAWADA, Tamaki WATANABE
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Publication number: 20120330195Abstract: A probe which is configured for a treatment device which is configured to treat a body tissue using ultrasonic vibration, includes a base member which includes a base surface defined by a longitudinal direction and a width direction shorter than the longitudinal direction and which is a vibration-retardation member configured to hardly transmit the ultrasonic vibration, a waveguide main body which has a width smaller than a width of the base surface in a width direction, protrudes with respect to the base surface, and is extended along the longitudinal direction of the base surface, and an end effecter which is provided at a tip end portion of the waveguide main body and which is configured to treat the body tissue by the ultrasonic vibration transmitted through the waveguide main body.Type: ApplicationFiled: June 25, 2012Publication date: December 27, 2012Inventors: Yukihiko SAWADA, Norihiro YAMADA
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Patent number: 8303508Abstract: An ultrasound endoscope has an ultrasound probe which is disposed at a distal end side of a distal end rigid portion configuring a distal end portion out of a flexible tube portion, a bending portion and the distal end rigid portion configuring an insertion portion, and forms an ultrasound scanning surface having a normal line in a direction orthogonal to an endoscope insertion axis L1, and a treatment instrument outlet of a treatment hole in the distal end rigid portion. The ultrasound probe is configured by a plurality of ultrasound transducers arranged in a convex circular arc shape, and a center of curvature of the plurality of ultrasound transducers is disposed at a proximal end side from the treatment instrument outlet.Type: GrantFiled: September 3, 2008Date of Patent: November 6, 2012Assignee: Olympus Medical Systems Corp.Inventors: Katsuhiro Wakabayashi, Hideo Adachi, Takanao Fujimura, Yukihiko Sawada, Akiko Mizunuma, Takuya Imahashi, Sunao Sato
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Publication number: 20120136279Abstract: An ultrasound surgical apparatus includes: an ultrasound transducer that generates ultrasound vibrations; a driving portion that supplies a driving signal to the ultrasound transducer; a distal end portion that is mechanically coupled with the ultrasound transducer and treats a living tissue through a liquid; a detecting portion that detects a cavitation level signal corresponding to a state of cavitation generated in the liquid by ultrasound vibrations of the distal end portion; and an information acquiring portion that acquires information of the living tissue on the basis of the cavitation level signal.Type: ApplicationFiled: November 30, 2011Publication date: May 31, 2012Applicant: OLYMPUS MEDICAL SYSTEMS CORP.Inventors: Kazue TANAKA, Yukihiko SAWADA, Norihiro YAMADA, Takashi MIHORI
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Publication number: 20120116222Abstract: An ultrasound treatment system applies an ultrasound driving signal generated by an ultrasound driving signal generating section on an ultrasound treatment section, treats a treatment target living tissue with ultrasound vibration under observation by an observing section, and acquires, with an image acquiring section, an observed image of the living tissue being treated. A control section controls, for example, output of the ultrasound driving signal on the basis of a comparison result of the observed image and a reference image of the living tissue in a state in which mist does not occur.Type: ApplicationFiled: November 1, 2011Publication date: May 10, 2012Applicant: OLYMPUS MEDICAL SYSTEMS CORP.Inventors: Yukihiko SAWADA, Norihiro YAMADA, Shusaku TSUKIYAMA
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Publication number: 20120078094Abstract: An ultrasound-guided ablation method captures an objective area to be ablated in an ultrasound scan area of an ultrasound transducer and delineates the objective area on an ultrasound image; specifies an ablation target area to display the ablation target area with a margin necessary for ablating the objective area on the ultrasound image processed by an ultrasound observation device and displayed on a display device; ablates, by an ablation device, the ablation target area displayed on the ultrasound image; and checks, on the ultrasound image, that an ablated area ablated by the ablation device has reached the ablation target area displayed on the ultrasound image.Type: ApplicationFiled: December 9, 2011Publication date: March 29, 2012Applicant: OLYMPUS MEDICAL SYSTEMS CORP.Inventors: Kenichi NISHINA, Takeharu NAKAZATO, Hideyuki KASAHARA, Norihiro YAMADA, Yukihiko SAWADA, Shuji OTANI, Takahiro ECHIZENYA
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Patent number: 8134280Abstract: An electronic radial ultrasonic probe comprising an electronic radial array which comprises a plurality of ultrasonic transducers being continuously arrayed circularly around an insertion axis as center and also for which a transmission/reception of an ultrasonic wave is controlled by electronically selecting the plurality of ultrasonic transducer, comprises: a support member equipped on the electronic radial array; a lock member featured with a cavity in which the support member is inserted and with a lock groove for locking a balloon which is mounted in a manner to cover the electronic radial array and in which an ultrasonic medium is filled; and a filler member which is constituted by an adhesive material converting from a fluid state to a solid state, and is filled in the cavity.Type: GrantFiled: October 29, 2009Date of Patent: March 13, 2012Assignees: Olympus Medical Systems Corp., Olympus CorporationInventors: Yukihiko Sawada, Akiko Mizunuma, Katsuhiro Wakabayashi, Takuya Imahashi, Sunao Sato
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Patent number: 8076824Abstract: An electronic radial ultrasonic probe comprising an electronic radial array which comprises a plurality of ultrasonic transducers being continuously arrayed circularly around an insertion axis as center and also for which a transmission/reception of an ultrasonic wave is controlled by electronically selecting the plurality of ultrasonic transducer, comprises: a support member equipped on the electronic radial array; a lock member featured with a cavity in which the support member is inserted and with a lock groove for locking a balloon which is mounted in a manner to cover the electronic radial array and in which an ultrasonic medium is filled; and a filler member which is constituted by an adhesive material converting from a fluid state to a solid state, and is filled in the cavity.Type: GrantFiled: May 18, 2011Date of Patent: December 13, 2011Assignee: Olympus Medical Systems Corp.Inventors: Yukihiko Sawada, Akiko Mizunuma, Katsuhiro Wakabayashi, Takuya Imahashi, Sunao Sato