Fujinon Corporation

Fujifilm Corporation

Kojima Chemicals Co., Ltd.

Masayuki Yamazaki

Koji Nishiyama

Youtaro Arai

Takeshi Tsukuda

An operating wire is inserted in a close-contact coil in a bendable tube portion through a flexible tube portion. The close-contact coil is such that a fixed portion is provided at the position of a bending piece which is placed at the most base end of the bendable tube portion, and that a close-contact coil extension portion having been put in a non-fixed state extends from the fixed portion in the bendable tube portion. A part between a fixed portion and the fixed portion of the close-contact coil is a remote control cable for transmitting an amount of pushing and pulling an operating wire when operating an operating wire. A close-contact coil extension portion extended from the fixed portion at the side of a tip end of the close-contact coil functions as a positioning guide section for holding the operating wire so as to prevent the operating wire from being displaced in a circumferential direction.

Bending device for endoscope

An endoscope includes a manipulation unit, and an insertion unit which is disposed in continuation to the manipulation unit. The insertion unit contains a bending portion which has a plurality of articulation wheels coupled in succession, two adjacent ones of the articulation wheels being coupled by a shaft member so as to be relatively turnable around the shaft member which crosses the center axis of the bending portion, the bending portion being bent in such a way that a wire which leads to the manipulation unit via the plurality of articulation wheels is tractively manipulated. The shaft member has a guide part formed with an insertional hole through which the wire is inserted, and at least the guide part of the shaft member is turnable around the center axis of the shaft member, to both the two articulation wheels coupled by the shaft member.

Endoscope

A cleaning adapter unit for connecting a cleaning fluid supply device to different type endoscopes comprises adapter valve assemblies which correspond to the different endoscopes, respectively. Each adapter valve assembly comprises a valve sleeve detachably connectable to the cleaning fluid supply device and a valve body received in the valve sleeve for slide movement and forming a valve chamber leading to the passage in the valve sleeve. The valve sleeve has a passage and is provided with a first fitting at one end thereof which is formed so as to be hermetically received in a valve casing of one of the different endoscopes, and the valve body is provided with first and second passages formed separately therein and opens at opposite ends, respectively, and with a second fitting at one ends thereof opposite to the one end of the valve sleeve at which the first fitting is formed so as to be hermetically received in the valve casing of the other different endoscope. The valve body brings the passage into communication with the first passage through the valve chamber when the cleaning adapter unit is attached to the one different endoscope by fitting the first fitting in the valve casing of the endoscope and with the second passage through the valve chamber when attached to the other endoscope by fitting the second fitting in the valve casing of the endoscope.

Adapter unit for connecting cleaning fluid supply device to endoscopes

An electroless gold plating solution containing 0.1 to 10 ml/l of ethyleneamines and 0.1 to 10 g/l of hexamethylenetetramine as complexing agents in addition to the solution comprising water-soluble gold salts, pH controlling agents, catalysts, alkylamine boranes, alkali cyanides and ethylendiamine tetraacetic acid. According to the present invention, thick coating of a gold plating film having high quality and gloss is possible and the plating time becomes very short.

Growing community of inventors

Saitama, Japan

Masayuki Yamazaki