Olympus Corporation

Olympus Optical Company, Ltd.

Itaru Osaki

Katsushi Watanabe

Takeaki Nakamura

Masakazu Gotanda

Seiichi Hosoda

Hiroshi Takahashi

Akira Shiga

Shinji Hatta

Koji Yasunaga

Masahide Yamaki

Kazutaka Matsumoto

Hiroyuki Sangu

Masaru Karasawa

A brake adjustment body is disposed in a direction orthogonal to turning shafts between a bending drive shaft and a lock operation shaft. The brake adjustment body is configured by including an intermediate member that abuts a cam portion of the lock operation shaft, and a brake member that applies to the bending drive shaft a pressure according to displacement of the intermediate member. The intermediate member has a shaft body portion and a cylindrical sliding portion screwed together, and by rotating the sliding portion in a state where the shaft body portion and the sliding portion are screwed together, the distance between a proximal end portion and a distal end portion of the intermediate member may be adjusted, and when fixing force on the bending drive shaft is reduced, the distance may be re-adjusted to restore the fixing force.

Bending operation apparatus of endoscope, and endoscope

A battery-powered light source devicehas an DC/DC converterthat boosts the supply voltage of a batteryand supplies electrical power to a lamp, and, inside this DC/DC converter, are provided a comparatorthat compares a specific reference voltage to the output voltage of a DC/DC converter, and a control componentthat keeps the output voltage from the DC/DC converterat a specific lamp voltage on the basis of the comparison result of this comparator, whereby the supply voltage of the batteryis boosted and the optimal lamp voltage is obtained. Consequently, the battery-powered light source deviceallows the brightness of the lamp to be adjusted and a high step-up efficiency to be obtained, and the battery can therefore be used more efficiently, and a more convenient use of the endoscope is possible.

Battery-powered light source device for endoscope

A battery-powered light source in which the relative position to a control section of an endoscope is changed to switch an illumination lamp to an ON state or OFF state includes a light source main body containing a battery for supplying electric power for turning on the illumination lamp, a plurality of switch positions provided in a range in which the relative position between the light source main body and the control section of the endoscope is changed, and a click mechanical portion provided at at least one of the switch positions, for maintaining the relative position between the light source main body and the control section of the endoscope in a predetermined state and switching the illumination lamp to a predetermined state while maintaining the state of the relative position.

ENDOSCOPIC BATTERY-POWERED LIGHT SOURCE HAVING ROTATIONALLY-CHANGING RELATIVE POSITIONAL RELATIONSHIP WITH CONTROL SECTION OF ENDOSCOPE AND ENDOSCOPE APPARATUS COMPRISING THE ENDOSCOPIC BATTERY-POWERED LIGHT SOURCE

An endoscope apparatus capable of preventing occurrence of problems trouble attributable to exhaustion of a battery has an endoscope and a battery-powered light source. The endoscope has a light guide fiber bundle over which illumination light is propagated. The battery-powered light source is freely detachably attached to the endoscope, and includes an illumination lamp and a battery. The illumination lamp supplies illumination light to the incidence end of the light guide fiber bundle on which illumination light falls. The battery serves as a power supply causing the illumination lamp to light. At least one of the endoscope and battery-powered light source has an indication unit for notifying a user of the amount of electrical energy contained in the battery.

Endoscope device and operation apparatus

Growing community of inventors

Hachioji, Japan

Itaru Osaki