Olympus Medical Systems Corporation

Olympus Corporation

Olympus Optical Company, Ltd.

Seiji Iwasaki

Hiroshi Ishii

Hiroaki Kagawa

Seiji Sakai

Naomi Sekino

Naoki Uchiyama

Masahiro Kawauchi

Yuuya Ishida

Shinichi Nakamura

Hideyasu Takato

Yuji Sakai

Koji Yamaya

Susumu Takahashi

Kenji Noda

Shuichi Takayama

Koji Takamura

Tomohisa Takahashi

Tsuyoshi Tsukagoshi

Soichi Ikuma

Takehiko Iguchi

Hiroyuki Nagamizu

Tsutomu Sasamoto

Yoshino Nagasuka

Miho Naka

Azusa Noguchi

Jun Hiroya

Tomoaki Yamashita

Koji Fujio

Aya Mori

Hideaki Ishihara

Koji Koda

Koichiro Ishiwara

Toru Kuchimaru

Nao Tsuruta

Takahiko Mitani

Hiroshi Unsai

Takayuki Tsukagoshi

Nariaki Saito

An insertion device comprises an insertion section, the insertion section including a distal portion, an operation section located on a proximal end side of the insertion section, a channel located in the insertion section and communicating with the distal portion, the channel including a transformable member on a distal end side of the channel, and a transformation unit, wherein a shape of the transformable member is changeable by operation of the operation section.

Insertion device

An endoscope comprising an insertion section including a distal end portion, a distal end opening in a distal end surface of a distal end portion, a side opening in a side surface of the distal end portion, a suction channel located in the insertion section and extending proximally from the distal end portion, and a valve switchable between an open state and a closed state. When a first suctioning flow through the distal end opening is less than a minimum suctioning flow, the valve is in the open state and a second suctioning flow through the side opening is present, and when the first suctioning flow is more than the minimum suctioning flow, the valve is in the closed state and the second suctioning flow is absent.

Endoscope and endoscope system

Bipolar cutting electrode

An image pickup apparatus includes: a lens frame internally holding a movable lens, and including a magnet provided on an outer circumferential surface; a holding frame; and a magnetic member, in which the magnet includes a plurality of magnet pairs provided at uniform angles in a circumferential direction of the lens frame, each of the magnet pairs including magnets that are respectively disposed on distal end side and proximal end side along the optical axis direction of the movable lens, the magnet disposed on the distal end side has a polarity opposite in the radial direction to a polarity of the magnet disposed on the proximal end side, and the magnetic member is provided to face the magnets that configure one of the plurality of magnet pairs.

Image pickup apparatus with magnetically movable lens

An image pickup apparatus for an endoscope includes: an image pickup device unit including an image pickup device; a lens unit including a moving lens; an actuator apparatus for an endoscope, the actuator apparatus including a first elastic member having an urging force that makes a moving lens frame be arranged at a first observation position, a second elastic member making the moving lens frame be arranged at a second observation position, and a shape memory alloy wire having a property of extending/contracting due to an applied current; a driving force transmitting wire arranged on a distal end side of the shape memory alloy wire; a pressing member, upon receipt of an elastic force from the second elastic member, pressing the moving lens frame to the second observation position; and a fixing portion that fixes the driving force transmitting wire and the shape memory alloy.

Image pickup apparatus for endoscope

An actuator has a magnet moved together with a moving lens frame, an SMA wire capable of extending and contracting in a moving direction I of the moving lens frame with execution or non-execution of energization thereof, a fixing member made of a magnetic material attached to a distal end of the SMA wire, a pressing spring which urges the fixing member toward the magnet along the moving direction I, and a stopper member and a stopper portion which limits the movement of the magnet along the moving direction I at a first position or a second position.

Image pickup apparatus

An endoscope system has a light source apparatus and an endoscope including an illumination optical system and an objective optical system. At least the objective optical system of the endoscope is provided with an adjustable diaphragm, and in a light path in one of the light source apparatus, the illumination optical system, and the objective optical system, an insertable/retractable filter for observation for special light is provided. The adjustable diaphragm performs a closing operation or an opening operation only when the filter for observation for special light is inserted into the light path.

Endoscope system and lens unit

An image pickup apparatus of the present invention varies optical properties by moving a part of lenses of an objective lens, and includes a solid-state image pickup device unit that is disposed at a rear-end section and that subjects a subject image to photoelectric conversion, a fixed lens frame that retains the objective lens that is disposed in front of the solid-state image pickup device unit, a movable lens frame that retains the part of lenses that moves along a photographing optical axis O inside the lens frame, and an actuator having one end connected to the movable lens frame and that moves the movable lens frame forward and backward. The actuator includes a rigid member provided so as to extend to the vicinity of the rear end at which the solid-state image pickup device unit is disposed and a shape memory alloy that is coupled to the rigid member.

Image pickup apparatus, electronic endoscope, and lens unit

Actuator and image pickup apparatus

An endoscope in accordance with the present invention provides an endoscope having an image pickup apparatus and including a first connection portion provided on one side surface of a first solid-state image pickup device to connect the first solid-state image pickup device to a first circuit board, and a second connection portion provided on one side surface of a second solid-state image pickup device to connect the second solid-state image pickup device to a second circuit board, the first solid-state image pickup device and the second solid-state image pickup device being arranged in proximity to each other so that a side surface of the first solid-state image pickup device which does not have the first connection portion lies opposite to a side surface of the second solid-state image pickup device which does not have the second connection portion.

Endoscope and endoscope apparatus

An image pickup apparatus having a lens unit configured to include a plurality of lenses and a variable aperture mechanism capable of varying an aperture opening diameter, the image pickup apparatus including: in the lens unit, a variable aperture unit configured by integrating the variable aperture mechanism and the single lenses of the lens unit using a fixing portion.

An actuator apparatus of the present invention includes a movable body that is arranged so as to be movable forward or rearward, and a shape memory alloy wire that is provided directly or indirectly to the movable body so as to enter a non-tension state at an ordinary temperature. The shape memory alloy wire is subjected to expansion/contraction control in which an electric current is applied thereto from a power supply portion of an external control circuit portion to change a temperature thereof to a predetermined temperature.

Actuator apparatus and image pickup unit

An endoscopic apparatus comprising a solid-state image pickup device installed in an insert assembly, a signal transmission member for conducting the electric signal into which the solid-state image pickup device photoelectrically converts an optical image, and a flexible tube-like metal member that makes up part of the cover of the insert assembly and/or a flexible tube-like metal member that constitutes part of the universal cord, whereby the signal transmission member is inserted through the insert assembly member and the universal cord, the shield member that covers the signal transmission member is disposed at least in part of the insert assembly and/or part of the universal cord assembly, and the shield member and the metal members are set to be equipotential to each other.

Endoscopic apparatus for reducing unwanted noise radiated from an

In the method and dissolving therapeutic apparatus for dissolving a coagulation within a living body, a medicinal liquid for dissolving the coagulation within the living body is injected into the living body, the injected medicinal liquid is left within the living body for a predetermined time and the fluid within the living body containing the coagulation dissolved by the medicinal liquid and the medicinal liquid is substantially all discharged out of the living body. A series of steps including at least respective injecting, leaving and discharging steps is repeated. Preferably, vibrating waves are radiated toward the coagulation during the leaving step.

Method for dissolving a thickened mass within a living body and

An ultrasonic wave curing device according to the present invention, can set the optimum ultrasonic wave focusing condition for curing, by using at least one of an ultrasonic wave oscillator, a conical reflector having a conical reflecting surface to reflect an ultrasonic wave, which comes from the ultrasonic wave oscillator, and a reflecting case having a concave, reflecting surface to focus to a position to be cured, an ultrasonic wave which is reflected, again, by the reflecting surface, after it is reflected by conical reflecting surfaces that are arranged around the periphery of the conical reflector.

Ultrasonic wave therapeutic device

Growing community of inventors

Hachioji, Japan

Seiji Iwasaki