Olympus Corporation

Nozomu Kotake

Tomohiko Mamiya

Toshihiro Yamagata

Kazuhiro Noda

Yuko Kirino

Ryosuke Sakai

A medical stent including: a tubular main body made of resin that extends along an axis; a first locking member including a first fixed end fixed to the distal end side of the main body, and a first free end positioned radially outward of the main body; a second locking member including a second fixed end fixed to the proximal end side of the main body, and a second free end positioned radially outward of the main body; and a spiral reinforcing material made of metal which is embedded between the inner and outer circumferential surfaces of the main body. The reinforcing material includes a first portion spirally wound between the first and second fixed ends, a second portion spirally wound at a pitch greater than that of the first portion, and a third portion spirally wound at a pitch greater than that of the second portion.

Medical stent and stent delivery device

A biopsy system includes an endoscope which includes an insertion portion having a channel, and a bendable portion provided in a distal end portion of the insertion portion; a needle tube which includes a distal end region, and a proximal end region having a higher bending rigidity than that of the distal end region; a sheath which can be inserted into the channel and inserted through by the needle tube; an attachment adapter which is provided on a proximal end side of the sheath and is capable of being mounted at the endoscope; and a connection member which connects the distal end region and the proximal end region, wherein the connection member can move within only a range of the insertion portion more proximal than a proximal end of the bendable portion and more distal than a proximal end of a follow-bending region.

Growing community of inventors

Tokyo, Japan

Nozomu Kotake