Covidien LP

Covidien Ag

Toshinobu Hayakawa

Kazuhiro Abe

Nobuatsu Kanie

Yuya Hoshinouchi

A dialysis catheter is provided which makes it possible to improve patency without reducing the ease of insertion, while also making it possible to effectively suppress the 'clinging phenomenon'. The dialysis catheter has a first portion provided with a thickened part which increases the thickness of the peripheral wall of a blood feed lumen on the blood removal lumen side thereof, and the cross-sectional area of the first portion is smaller than the cross-sectional area of a second portion.

Dialysis catheter

A triple lumen catheter comprises a transfusion lumen (), a blood feeding lumen () and a blood removing lumen (). The transfusion lumen () has a distal end and a leading end portion (A), the leading end portion progressively reducing in diameter to a proximal end. A transfusion port () is formed in the proximal end of the transfusion lumen. The blood feeding lumen () has a blood feeding port () in a region of the proximal end of the leading end portion, the blood feeding port opening at least partially in an axial direction of the leading end portion. The blood removing lumen () includes a pair of blood removing ports () provided in opposite side walls of the catheter, the blood removing lumen extending from a distal end at least to the blood removing ports.

Growing community of inventors

Fukuroi, Japan

Toshinobu Hayakawa