Sumitomo Bakelite Company Limited

Tokyo Medical and Dental University

Akira Kawamata

Hirokuni Arai

Hideaki Asai

Shinetsu Harata

Haruhiko Masuda

Toshifumi Sakate

Keitaro Sugita

Keiji Oi

Takashi Sato

Kei Hyugaji

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

According to the present invention, there is provided an artificial tendon-forming auxiliary instrument in which a valve cusp of a cardiac valve and a papillary muscle can be joined together with an artificial tendon through an easy procedure and the artificial tendon can be finished so as to have a desired length. According to an aspect of the present invention, an auxiliary instrument () is used for joining a valve cusp () of the cardiac valve and a papillary muscle () with an artificial tendon (). A pair of end-portion support portions () and () respectively supporting the valve cusp () and the papillary muscle () is provided at both ends in a longitudinal direction. The auxiliary instrument () includes first and second tendon insertion ports through which the artificial tendon () is inserted, a tendon guide portion (), and an instrument holding portion (). The first and second tendon insertion ports are respectively formed in the pair of end-portion support portions () and () and have diameters greater than a diameter of the artificial tendon (). The tendon guide portion () is formed so as to extend in the longitudinal direction across the first and second tendon insertion ports. The instrument holding portion () is formed in an intermediate portion of the tendon guide portion () in the longitudinal direction.

Artificial tendon-forming auxiliary instrument, somatometry instrument, and auxiliary instrument set

A coronary artery bypass grafting device includes a plurality of attachment members each having: a flexible tube (); a suction cup portion () provided in a tip end side of the flexible tube (); a three-way cock () provided in the flexible tube (); and a holding member () that holds the flexible tube (). At least one of the attachment members further includes a duckbill valve () provided in the flexible tube ().

Coronary artery bypass grafting device

An instrument for coronary artery bypass graft surgery has at least three sets of suction units, respectively provided with a flexible tube; a suction head disposed at an end portion of the flexible tube; a three-way cock mounted on the flexible tube; and a retainer which retains the flexible tube.

Instrument for coronary artery bypass graft surgery

Growing community of inventors

Akita, Japan

Akira Kawamata