Terumo Kabushiki Kaisha

Kyushu University

Japan Vilene Company, Ltd.

Fukuoka Prefectural Government

Tetsu Yamaguchi

Masaaki Kawabe

Hiroyuki Yagami

Takashi Tarao

Yasukazu Harada

Rie Watanabe

Koei Kawakami

Shinji Sakai

An inorganic fiber structure comprising inorganic nanofibers having an average fiber diameter of 3 &#x3bc;m or less, in which an entirety including the inside thereof is adhered with an inorganic adhesive, and the porosity thereof is 90% or more, is disclosed. Furthermore, a process for producing an inorganic fiber structure is disclosed, which includes (i) a step of spinning inorganic fibers by an electrospinning method, from a spinning inorganic sol solution containing a compound mainly composed of an inorganic component; (ii) a step of forming an inorganic fiber aggregate by irradiating the inorganic fibers with ions having a polarity opposite to that of the inorganic fibers to accumulate the inorganic fibers; and (iii) a step of forming an inorganic fiber structure adhering to the inorganic fiber aggregate with an inorganic adhesive in an entirety including the inside thereof, in which an adhering inorganic sol solution containing a compound mainly composed of an inorganic component is imparted to an entirety including the inside of the inorganic fiber aggregate, and an excess adhering inorganic sol solution is removed by gas-through.

Inorganic fiber structure and process for producing same

An ultrasound catheter includes a transducer unit used for observation of the inside of an organism, observation lumens in which the transducer unit is disposed and which extend in the direction of insertion into the organism, a first guide wire lumen provided substantially in parallel to the observation lumens and on the distal end side in the insertion direction in relation to the transducer unit and through which a guide wire preliminarily brought to the inside of the organism is passed, and a second guide wire lumen provided on an extension line of the first guide wire lumen and on the proximal end side in the insertion direction in relation to the transducer unit and through which the guide wire is passed.

Catheter

Growing community of inventors

Tokyo, Japan

Tetsu Yamaguchi