Terumo Kabushiki Kaisha

Seiren Company, Ltd

Janome Sewing Machine Company Limited

Terumo Corporation

Takeo Katakura

Yuichi Mori

Ken Tatebe

Sobei Wakabayashi

Jun Konishi

Mikio Koide

Tomoko Hashimukai

Kaori Oyamada

Ken-ichi Ohsaki

Takaaki Ohsawa

Kazuyoshi Azeyanagi

Yoshihito Takano

Noboru Matsunaga

Yoshihisa Ueda

Ichirou Sogaishi

An artificial blood vessel is formed of a tubular body of composite fibers. The composite fibers are composed of a polyethylene terephthalate and a polyester elastic body which are materials familiar with the tissue of an organism. The tubular body is produced by weaving, knitting or assembling processing, or the combined processing thereof, of the composite fibers.

Artificial blood vessel

A vascular prosthesis is disclosed which excels in expansibility and allows satisfactory attachment thereto of cells and tissues. This vascular prosthesis is obtained by air-jet entangling a mass of yarns containing in at least a part thereof an elastic bulked yarn in order to get an entangled yarn furnished with fine crimps formed in fiber thereof, and fabricating a tubular fabric of the entangled fiber by one treatment selected from among weaving, knitting, and braiding treatments.

Vascular prostheses

Cell-penetrable medical material made of denatured collagen which is prepared by heating, in the presence of water is disclosed, the collagen having cross-linking structure. Artificial skin prepared by using this medical material as a wound-contacting layer (2) is also disclosed.

Cell-penetrable medical material and artificial skin

A slurry compound prepared by a sintering powdery material and a binder is press-molded to obtain a contour for the final product applicable to a bone-implant such as hip prosthesis. The molded body is given a programmed movement of rotation and/or swinging to impart a centrifugal force to the sintering particles which direct toward the inner wall of the mold cavity. The final product obtained after sintering has a hollow interior having no communication to the outside. Imparting conditions of rotating/swinging movement may be changed or programmed in order to achieve a desired structure or constitution of the final product. By way of example, larger particles concentrate near the inner wall of the mold to provide a rough, porous surface of the body, whereas it has a dense core consisting mainly of sintered fine particles. A hip prosthesis having a ceramic-rich femoral head and a metal-rich stem may also be produced by so programming the movement imparting conditions.

Method of making bone-implants

Medical material and prosthetic skin in which cells can invade

Growing community of inventors

Kanagawa, Japan

Takeo Katakura