Terumo Kabushiki Kaisha

Hideaki Kitou

Kenji Ishikawa

Kenichi Shimura

Naoki Ishii

Yasunobu Zushi

Takayasu Shimazaki

Yoshihide Toyokawa

Taku Aoike

An indwelling catheter is made of a polyurethane resin having a Shore hardness of 60D or more. The soft segment of the polyurethane resin is constituted by polycaprolactone. The indwelling catheter has a kinking resistance of 10 mm or more when measured at 37.degree. C. in wet state. The Young's modulus is at first 20 kgf/mm.sup.2 or more when measure at 25.degree. C. in dry state, and reduces to 15 kgf/mm.sup.2 or less by soaking it in water of 37.degree. C. for 5 minutes or less.

Indwelling catheter with improved kinking resistance

This invention provides a medical device in which its lubricity is continually maintained and its safety is guaranteed. Particularly, it provides a medical device in which lubricity is generated on at least a portion of its surface when the device is contacted with body fluids or exposed to physiological aqueous conditions, wherein the lubricity-generating portion is formed by thermoforming.

Thermoformed medical device with lubricious modified polyethylene oxide

Growing community of inventors

Kanagawa-ken, Japan

Hideaki Kitou