Machida Endoscope Co., Ltd.

Tsuneyuki Nagae

Atsushi Utsumi

Yuichi Komachi

Shin Ishimaru

Katsuo Aizawa

An endoscope apparatus has a side view endoscope for side viewing an object in a radial direction of a distal end constitutional portion and a balloon catheter . With an insert portion of a side view endoscope inserted in an insert tube of the balloon catheter , the balloon catheter is inserted into a blood vessel B. The insert tube is provided at its distal end with a transparent balloon . This balloon encloses the distal end constitutional portion . By feeding air (fluid) to this balloon , the balloon is expanded so as to be urged against an inside wall of the blood vessel B. This causes the blood to be discharged between the inside wall of the blood vessel B and the balloon , thus enabling to observe the inside wall of the blood vessel B through the side view endoscope

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Tokyo, Japan

Tsuneyuki Nagae