Olympus Corporation

Olympus Medical Systems Corporation

Hideo Sanai

Tatsuya Suzuki

Kenichi Kimura

Masashi Yamada

Kazue Tanaka

Satoshi Honda

Shunsuke Matsui

Masami Oshida

Hiroshi Minami

Yuki Amano

Yuki Kawaguchi

Yuji Hirai

Mitsumasa Okada

Shinya Masuda

Masaya Ota

Norikiyo Shibata

Ryu Onuma

Takeshi Onaga

Yoshitaka Fujii

Kirara Kono

A surgical tool including a housing having a proximal end and a distal end, a yoke disposed within the housing between the proximal end and the distal end, a handle pivotally coupled to the housing, and a pivot assembly coupling the yoke to the housing. The pivot assembly includes a first link having a first end and a second end. The first end of the first link is rotatably coupled to the housing and the second end of the first link rotatably coupled to a second link at a first end of the second link. The second link has a second end rotatably coupled to the yoke. The handle is coupled to the pivot assembly such that movement of the handle causes movement of the yoke.

Surgical tool with reduced actuation force

A medical apparatus remanufacturing method includes: disassembling a housing including a first housing and a second housing. The first housing can include a boss that is press-fitted to a boss hole of a press-fitted portion of a second housing to form an assembled state in which the first housing and the second housing are assembled to each other. The housing is disassembled by changing a temperature of at least one of the boss or the press-fitted portion to decrease a contact surface pressure between the boss and the boss hole, and removing the boss from the boss hole to release the assembled state.

Medical apparatus remanufacturing method

A surgical tool including a housing having a proximal end and a distal end the housing including a guide rail. The tool also includes a yoke slidably coupled to the housing, a handle pivotally coupled to the housing, and a link coupling the handle to the housing, the link having a first end and a second end, the first end of the link rotatably coupled to the handle and the second end of the link rotatably coupled to the yoke and slidable within the guide rail. The tool further includes a yoke pivot pin pivotably coupling the second end of the link to the yoke and a handle pivot pin coupling the link to the handle, wherein the handle pivot pin is disposed proximal compared to the yoke pivot pin.

A treatment system can include a treatment instrument with an operation input element that has a magnet; and a sensor that detects a parameter that changes with a movement of the magnet together with the operation input element based on an operation of the operation input element. The treatment system can also include a control apparatus that can control the supply of electrical energy to the treatment instrument for operation of the treatment instrument. The control apparatus includes a processor that can determine a relationship between a change in a distance between the sensor and the magnet and a change in the parameter, and to set, based on the relationship, a threshold for switching between an ON state and an OFF state of the supply of the electrical energy to the treatment instrument.

Treatment system

A treatment device includes a vibrator capable of ultrasonically vibrating, a front mass portion having a first resonance frequency and connected to the vibrator in a manner capable of transmitting ultrasonic vibration, a treatment probe configured to treat a subject and having a second resonance frequency that is higher than the first resonance frequency of the front mass portion, and a connection portion connecting a distal end surface of the front mass portion and a proximal end surface of the treatment probe by a pressing force, and serving as an antinode position when vibrating at the first resonance frequency.

Treatment device

An ultrasonic treatment device includes a first vibration transmitting member and a second vibration transmitting member and being configured to treat a biological tissue by means of vibration transmitted by the first vibration transmitting member and the second vibration transmitting member. At a boundary position between the first vibration transmitting member and the second vibration transmitting member, the first vibration transmitting member has a boundary face including a contacting area that is in contact with the second vibration transmitting member at the face, and a non-contacting area that is not in contact with the second vibration transmitting member.

Ultrasonic treatment device

A surgical treatment apparatus includes a treatment portion unit; at least one operation portion provided in the treatment portion unit that is movable in response to an operation of an operator; a detection subject portion provided in the operation portion; a gripping portion that is detachable and attachable relative to the treatment portion unit; a non-contact type detection portion that is provided in the gripping portion separately from the operation portion and is capable of detecting an operation of the detection subject portion in accordance with the operation of the operation portion; an energy supply portion provided within the gripping portion, that supplies energy to the treatment portion; and a driving device connected to the gripping portion, that supplies energy to the energy supply portion in accordance with a detection result of the detection portion.

Surgical treatment apparatus

A switch board of a board unit includes a switch board including an exposed portion exposed to an outside, a non-exposed portion not exposed to the outside, and a switch provided in the non-exposed portion. The non-exposed portion of the switch board is covered with the cover portion. The cover portion is formed as one piece with the switch board in the state in which liquid-tightness is kept between the cover portion and the non-exposed portion, and liquid is prevented from flowing from the outside of the board unit into the non-exposed portion.

Board unit, operation input unit, energy treatment instrument, and manufacturing method of board unit

A treatment instrument includes: a proximal side probe transmits ultrasonic vibration from its proximal end to its distal end; a distal side probe configured to transmit the ultrasonic vibration from its proximal end to a treatment portion at its distal end; and a holding portion which holds a state where the proximal end of the distal side probe is into collision with the distal end of the proximal side probe, and a state where vibration is transmittable from the proximal end of the proximal side probe to the distal end of the distal side probe.

Treatment instrument, distal side probe unit, and proximal side probe unit

A treatment assembly includes: a probe which includes a treatment section at a distal end portion thereof; an inner tube which includes a distal end and into which the probe is inserted in a state that the treatment section of the probe protrudes toward a distal end side with respect to the distal end; an opening which is provided in a side surface of the inner tube and which allows an inner side of the inner tube to communicate with an outer side of the inner tube; a support section which is arranged on the inner side of the inner tube from the outer side of the inner tube through the opening and which is configured to support the probe with respect to the inner tube; and an outer tube which covers the outer side of the inner tube and which is configured to fix the support section.

Treatment assembly, treatment device and manufacturing method of treatment device

A treatment device is constituted of: an ultrasonic vibration element unit; a probe unit that can be attached or detached by rotating the ultrasonic vibration element unit, transmits ultrasonic vibration generated by the ultrasonic vibration element unit to a distal end side, and gives a treatment; a handle unit that has the probe unit penetrating therethrough and is configured to hold the probe unit so that its distal end extends; and a protruding portion provided to prevent the probe unit and the handle unit from relatively revolving around an axis of the probe, the handle unit including the probe unit that transmits the ultrasonic vibration and being attachable to/detachable from the ultrasonic vibration element unit.

Ultrasonic vibration treatment device

A surgical apparatus includes: a treatment section treating a living tissue; an energy generation section providing high-frequency current to the treatment section; a liquid feeding conduit feeding a liquid to the living tissue; a suction conduit suctioning the liquid; an energy control section that outputs a high-frequency output control signal for controlling the energy generation section; a first pump drive section that feeds the liquid from the liquid feeding conduit while the high-frequency current is output, according to a command of the high-frequency output control signal, and stops feeding of the liquid, according to a command of the high-frequency output control signal; and a second pump drive section that suctions the liquid from the suction conduit for a predetermined period of time or in a predetermined amount, according to a command for stopping the high-frequency output control signal, and stops suction of the liquid after the suction.

Surgical device

In a treatment instrument, a load force center of a load force, which is a sum of gravity acting on the treatment instrument and an external force caused by a connected cable, is positioned between two support members of a handle section, and a location of introduction of the cable is disposed in a manner to extend therebetween. In the treatment instrument, an ultrasonic vibration element unit is attached and rotatably coupled to a handle unit, a power receiving section or a power supply section at the coupling constitutes a rotary electrode structure by a cylindrical electrode and a terminal electrode, and power from an outside is received and transmitted between the handle unit and the ultrasonic vibration element unit.

Ultrasonic treatment instrument using ultrasonic vibrations

An energy treatment instrument includes an electrically conductive probe having a first electrode in a distal end portion and adapted to transmit high-frequency electric current and ultrasound vibration to the first electrode, an electrode member installed on both sides of a longitudinal axis of the first electrode separately from the electrically conductive probe and provided with a second electrode, and a movable member. The movable member is installed at a distal end of the sheath member and configured to be openable and closable with respect to the second electrode. The movable member is placed at a position facing the first electrode installed at the distal end of the probe and the second electrode and includes a third electrode provided with an electrode surface configured to be able to conduct high-frequency electric current between the third electrode and the first and second electrodes.

Energy treatment instrument

A surgical system includes a surgical instrument including a conducting section transmitting ultrasound vibration generated by an ultrasound transducer to a distal end portion and transmitting a high-frequency output signal to the distal end portion, an ultrasound drive section outputting an ultrasound drive signal to the ultrasound transducer, a high-frequency output section outputting a high-frequency output signal to the conducting section, a detection section detecting an ultrasound impedance of a surgical site to which ultrasound energy and high-frequency energy are provided from the distal end portion by outputting both signals simultaneously to the surgical instrument, a determination section determining whether the detected ultrasound impedance is in a predetermined range, and a control section performing control to increase a high-frequency output value by a first predetermined amount or decrease the high-frequency output value by a second predetermined amount when the detected ultrasound impedance is out of the predetermined range.

Growing community of inventors

Hachioji, Japan

Hideo Sanai