Sumitomo Bakelite Company Limited

Tokyo Medical and Dental University

Shinetsu Harata

Kenichi Kanemasa

Yoshiki Toyota

Yutaka Suzuki

Masao Ikeda

Etsuro Yamabe

Hideaki Asai

Akira Kawamata

Yasunori Kojo

Hirokuni Arai

Hayao Tanaka

Kiyotaka Arikawa

Keiji Kamada

Wataru Otsuka

Toshifumi Sakate

Yoshihiro Abe

Kazuki Okada

Hiroaki Hashido

The present invention provides a coronary artery bypass surgery treatment tool or the like including a flexible tube, a suction cup in which an opening portion is formed to communicate with the flexible tube and which is provided at a distal end of the flexible tube, a joint portion which has a suction path, a male connector which is provided in one of a proximal end of the flexible tube and a distal end of the suction path of the joint portion, and a female connector which is provided in the other thereof and is detachably connected to the male connector.

Coronary artery bypass surgery treatment tool, treatment tool part, medical connector, and medical device

The present disclosure provides a medical instrument, including a tubular main body; a plurality of operating lines; an operating part main body provided on the base end portion of the tubular main body; a bending operating part which is configured to bend a distal portion of the tubular main body; a path defining part which is configured to define a path of the operating line in the bending operating part; and a deviation preventive member which is configured to prevent the operating line from deviating from a path defined by the path defining part; wherein the operating line becomes in a relaxed state when the bending operating part is in a fixation position, while the operating line becomes in a strained state when the bending operating part is in an operation position.

Medical instrument

A medical device is provided, including: a sheath portion (); a pair of operation wires (); and a turning operation portion () in which the sheath portion () is bent in a direction corresponding to the pulled one operation wire () through a turning operation. The turning operation portion () includes a wire fixation panel () around which the operation wires () are wound on a side peripheral surface; and a penetration portion () and a closing portion () which are provided further radially outwards than the side peripheral surface of the wire fixation panel () and at a position facing the side peripheral surface, so as to be integrated with the wire fixation panel ().

Medical device

An anti-leak valve unit is removably attached to a base end portion of an overtube through which an endoscope is removably insertable. The anti-leak valve unit includes a frame portion attachable to the overtube, a fitting device on the frame portion that is removably engageable with the base end portion, and a valve element provided inside the frame portion. The frame portion and the fitting device can be embodied as first through third interconnected covers and first and second members attached to the first cover at edges thereof. The valve element can be embodied as a flexible member with an annular endoscope insertion port in a flexible elastic portion thereof.

Anti-leak valve unit for overtube

A catheter of the invention includes an elongated flexible tubular main body; a plurality of manipulation wires inserted through the tubular main body and having tips connected to a distal part of the tubular main body; a manipulation-part main body provided at a base end of the tubular main body; and a bending manipulation part. The bending manipulation part has an engagement part engaging with base ends of the manipulation wires, and individually applies pulling force to the plurality of manipulation wires through pulling operations so as to bend the distal part of the tubular main body. The bending manipulation part is provided so as to be movable with respect to the manipulation-part main body. The path lengths of the plurality of manipulation wires from the tips thereof to the engagement part are simultaneously increased or decreased when the bending manipulation part and the manipulation-part main body move relative to each other.

Catheter, catheter manipulation part, and catheter manufacturing method

There is provided a repeated type organ fixing instrument having a plurality of suturing tools. The organ fixing instrument includes a rod-shaped engaging portion, a suture fixed to the engaging portion, a puncture needle for housing a plurality of the engaging portions. A plurality of the engaging portions are extruded one by one from the puncture needle by the operation of a operation unit main body. The suture fixed to at least one of the plurality of engaging portions is inserted within the inside of the puncture needle and wherein the other suture is derived from the inside to the outside of the puncture needle.

Repeating-type organ-fastening tool

The high-frequency treatment tool includes a flexible tube inserted into a body cavity; an operating wire inserted through the flexible tube to be movable back and forth; a treatment part arranged on a distal end of the operating wire and treats biological tissue by applying a high-frequency current; a main body that fixes a base end of the flexible tube; a slider-fixing part that fixes a base end of the operating wire guided from the base end of the flexible tube and slides the operating wire in an axis direction with respect to the main body; and a slider-zipping part provided to encircle at least a portion of an outer peripheral surface of the slider-fixing part and slides the slider-fixing part by the operation of a user. The slider-fixing part is unrotatably coupled to the main body and the slider-gripping part is rotatably coupled to the slider-fixing part.

High-frequency treatment tool

An endoscope hood () has a cylindrical shape with both ends opened and is mounted on a tip end portion () in a longitudinal axis direction of an endoscope () provided with an optical system at least including an observation system () and a treatment system to be used. The endoscope hood () is provided with an endoscope mounting unit () having a base end side opening () configured to be mounted on the tip end portion () of the endoscope () and a hood main body () having a tip end side opening () of which outer diameter perpendicular to the longitudinal axis direction is smaller than the outer diameter of the base end side opening (), wherein, in a state in which the base end side opening () is mounted on the tip end portion () and the tip end portion () is seen in the longitudinal axis direction, the optical system and the treatment system are located on the inside of the tip end side opening ().

Growing community of inventors

Akita, Japan

Shinetsu Harata