Fujinon Corporation

Fujifilm Corporation

Srj Corporation

Hiromu Itoi

Toshiaki Kuniyasu

Toshizumi Tanaka

An ultrasonic control apparatus has a connector and a connector cover. The connector cover is attached to be slidable between a close position where the connector is covered and an open position where the connector is exposed, and has a press projection. When the connector is set on the press projection and then pressed down together with the connector cover, the connector is exposed and opposed to the connector, and the connectors can be connected with each other.

Slidable cover for endoscope control apparatus

The endoscope applicator according to the present invention allows lubricant to be supplied uniformly to the entire inner surface of the endoscope applicator without increasing the diameter of the endoscope applicator because the lubricant supply path is laid on the outer surface of the endoscope applicator extending from the base end portion to the tip portion of the endoscope applicator and a plurality of openings are formed in the lubricant supply path and endoscope applicator at predetermined intervals in such a way that their opening areas of the opening increase from the base end portion to the tip portion. Moreover, the endoscope apparatus according to the present invention can improve the maneuverability of the insert portion and applicator during pull-in operation. Furthermore, the endoscope apparatus according to the present invention makes it possible to determine pull-out force quantitatively.

Endoscope applicator and endoscope apparatus

A distal hard part in an insertion portion is provided with an ultrasonic transducer in which a large number of ultrasonic vibrators are arranged in the circumferential direction. The ultrasonic transducer is shaped like a cylinder. Each member that constitutes an endoscopic observation section is passed through this tunnel-like passage. Each ultrasonic vibrator is provided with a single common electrode and individual electrodes the number of which corresponds to the number of the ultrasonic vibrators. Flexible boards and are provided on the proximal and distal end sides of the ultrasonic transducer. Wires are connected to these flexible boards. The wires from the flexible board are extended without changes, whereas the wires from the flexible board are reversely turned from the distal end side, are then passed through the tunnel-like passage, and are extended in the direction of an angle part.

Ultrasonic endoscope

According to the endoscope system of the present invention, when the image pickup device of the first endoscope device detects illumination light irradiated from the illumination device of the second endoscope device, the control device performs control so as to reduce light quantity of the illumination device of the second endoscope device based on the level of luminance signal outputted from the solid state image pickup element of the image pickup device, and when the image pickup device of the second endoscope device detects illumination light irradiated from the illumination device of the first endoscope device, the control device performs control so as to reduce light quantity of the illumination device of the first endoscope device based on the level of luminance signal outputted from the solid state image pickup element of the image pickup device.

Endoscope system and operation method for endoscope

An ultrasonic endoscope comprises an insertion portion comprising a distal hard portion which has: an endoscopic observation unit; and an ultrasonic observation unit having ultrasonic transducers arranged circumferentially on an outer circumferential section of the distal hard portion, wherein the ultrasonic observation unit comprises an ultrasonic-wave transmission/reception unit having an tunnel-shaped path which has an inner circumferential surface formed as a backing layer; a distal block is arranged on a distal side in an axial direction of the distal hard portion with respect to a location where the ultrasonic-wave transmission/reception unit is arranged, and distal ends of respective members constituting the endoscopic observation unit are fixed to the distal block; and part of the members which constitute the endoscopic observation unit are fitted so as to be partially protruded from an inside diameter of the tunnel-shaped path toward an outer circumferential side thereof.

Growing community of inventors

Saitama, Japan

Hiromu Itoi