Olympus Corporation

Olympus Medical Systems Corporation

Olympus Optical Company, Ltd.

Yukihiko Sawada

Katsuhiro Wakabayashi

Akiko Mizunuma

Takuya Imahashi

Sunao Sato

Hideo Adachi

Takanao Fujimura

Tomoki Funakubo

Miyuki Murakami

Kiyoshi Nemoto

Shuji Otani

Kozaburo Suzuki

Naomi Shimoda

Kazue Tanaka

Norihiro Yamada

Masayoshi Omura

Satoshi Honma

Yoshihisa Taniguchi

Etsuko Omura, Legal Representative

Sayuri Sato

Etsuko Omura

Ki Doh

Takeaki Nakamura

Tsunetaka Akagane

Masaaki Hayashi

Yuji Hirai

Masayoshi Esashi

Takashi Tsukaya

Shuichi Takayama

Kuniaki Kami

Masanori Hamazaki

Yoshiyuki Okuno

Hiroyuki Imabayashi

Masao Izawa

Takashi Ouchi

Yoshiro Nishimura

Masashi Abe

Kei Irie

Takeharu Nakazato

Hidemichi Aoki

Takahiro Echizenya

Fukashi Yoshizawa

Toshiharu Tsubata

Yougo Imai

Yoshiyjki Okuno

Shinan Wang

Tamaki Watanabe

Hironobu Aoki

Hiroshi Suzushima

Katsuhiko Wakabayashi

Shusaku Tsukiyama

Kozue Kurihara

Mizunuma Akiko

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.

Medical device

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.

Ultrasonic treatment device and probe

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.

Probe adapted to treat living tissue and actuation method of device

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.

Ultrasound operation apparatus, ultrasound operation system, and cavitation suppression method

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.

Ultrasound operation apparatus, ultrasound operation system, and cavitation utilization method

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.

Medical apparatus

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.

Capacitive ultrasonic transducer, production method thereof, and capacitive ultrasonic probe

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 L, 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.

Ultrasound endoscope

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.

Ultrasonic probe

The present invention provides an ultrasonic endoscope, comprising: an ultrasonic transducer in a cylindrical shape including a plurality of piezoelectric devices, an acoustic matching layer stacked on a principal plane on a sound emitting plane side, an acoustic lens on a plane of the acoustic matching layer opposite to a plane facing the piezoelectric devices, and a backing material stacked on another principal planes of the piezoelectric devices; an endoscopic observation and endo-therapy unit provided, for performing endoscopic image observation, at a proximal end side of the ultrasonic transducer; a cable assembly including a plurality of cables for transmitting signals to and from the ultrasonic transducer. In the above configuration, the cable assembly is arranged in such a manner that the cable assembly passes through an inside portion of the ultrasonic transducer, and is connected to the ultrasonic transducer at a distal end side of the ultrasonic transducer. Thereby, an ultrasonic endoscope is provided that has an ultrasonic transducer in which the ultrasonic transducer and coaxial cables will not be disconnected even under thermal or mechanical loads.

Ultrasonic endoscope

An ultrasonic transducer arraying at even intervals ultrasonic transducers for transmitting and receiving ultrasonic waves and layering a plurality of acoustic matching layers on them, comprising an transducer shape forming member made of a fiber-reinforced thermosetting PPE for filling a gap formed on the side face of the ultrasonic transducer with the same material as that of the acoustic matching layer, mixing a colorant in a division member adjacent to a predefined ultrasonic transducer from among a plurality of ultrasonic transducers, and arraying the plurality thereof.

Ultrasonic transducer, ultrasonic transducer array and ultrasound endoscope apparatus

An ultrasound transducer manufactured by using a micromachining process comprises: a first electrode into which a control signal for transmitting ultrasound is input; a substrate on which the first electrode is formed; a second electrode that is a ground electrode facing the first electrode with a prescribed space between the first and second electrodes; a membrane on which the second electrode is formed and which vibrates and generates the ultrasound when a voltage is applied between the first and second electrodes; a piezoelectric film contacting the membrane; and a third electrode electrically continuous to the piezoelectric film.

Ultrasound transducer manufactured by using micromachining process, its device, endoscopic ultrasound diagnosis system thereof, and method for controlling the same

Within the tip portion of a cylindrical shaped sheath a capacitive ultrasonic transducer which is an array type two-dimensionally arrayed on the outer surface of the cylindrical face is disposed. Capacitive ultrasonic transducer units employ m capacitive ultrasonic transducer elements arrayed in the longitudinal direction of the cylindrical face as a division unit, thereby providing an arrangement wherein the respective capacitive ultrasonic transducer units are readily disposed in the circumferential direction, whereby radial scanning or the like can be performed within a body cavity.

Capacitive ultrasonic probe device

An ultrasonic probe apparatus which applies a RF pulse signal with a DC bias signal superimposed thereon to c-MUTs and transmits/receives an ultrasound wave is configured such that a transmission control system includes bias regulators which regulate the voltage value of the DC bias signal, a reception control system has a plurality of different frequency band pass filtering characteristics including at least those for a low pass and high pass and a frequency band pass filtering processing section which can select at least one frequency band pass filtering characteristic from those frequency band pass filtering characteristics. The apparatus controls voltage settings of the bias regulators in conjunction with the selection of frequency band pass filtering characteristics of the frequency band pass filtering processing section.

Ultrasonic probe apparatus and ultrasonic diagnostic apparatus

Growing community of inventors

Yoshikawa, Japan

Yukihiko Sawada