Asahi Kogaku Kogyo Kabushiki Kaisha

Pentax Corporation

Ichiro Ninomiya

Hiroshi Sano

Akira Sugiyama

Hirohisa Ueda

Kunitoshi Ikeda

Kenichi Ohara

Keiji Kunii

Masahiro Takano

Noboru Ujiie

Tadasu Kobayashi

A forceps of endoscope comprises a clip that is provided with at least three arms and a base end portion. The arms are connected to the base end portion. Each of the arms has an open-close deforming portion located close to the base end portion. A core member is provided inside the clip to be in contact with an inner surface of the open-close deforming portion at least when the arms are open. A clip open-close ring is operated by remote control performed from the base end of the sheath. The clip open-close member is engaged with the open-close deforming portion to open and close the arms with a substantially equivalent angular interval and so as to prevent each of the arms from crossing each other.

Clip device of endoscope

A fluorescent diagnosing apparatus includes a normal image television camera which picks up a normal observation image that is transmitted through an ocular portion of an endoscope and a fluorescent image television camera which intensifies and picks up a fluorescent image transmitted through the ocular portion. An optical path switching member which selectively guides light along an optical path extending from the ocular portion to one of the normal image television camera and the fluorescent image television camera is provided together with a light interrupting member which is positioned between the optical path switching member and the fluorescent image television camera when the optical path switching member is in a normal observation status in which the optical path switching member guides the light along the optical path from the ocular portion to the normal television camera. In addition, a support frame which defines at least two stationary planes extending in different directions is provided together with at least one elastic pressing mechanism which elastically presses the switching member against the stationary planes while permitting the switching member to slide along the stationary planes.

Fluorescent diagnosing apparatus including optical path switching member

A bendable portion which is provided at the distal end of an insert part of an endoscope and bent by remote control. The bendable portion includes an elastic and flexible double walled tube comprising a pair of inner and outer tubes for covering the bendable portion. A device for preventing enlargement of the diameter of the inner tube is sandwiched between the inner and outer tubes.

Bendable portion of endoscope

Growing community of inventors

Saitama, Japan

Ichiro Ninomiya