Terumo Kabushiki Kaisha

Janome Sewing Machine Company Limited

Terumo Corporation

Takaaki Ohsawa

Tatsuya Fujii

Takeo Katakura

Kazuyoshi Azeyanagi

Takanori Ijitsu

Noboru Matsunaga

Yoshihisa Ueda

Ichirou Sogaishi

An injector includes a support tube having one end surface to be brought into contact with skin, a movable tube advanceable in the support tube in the direction of the skin, an injection needle communicating with the movable tube, a plunger advanceable in the movable tube in the direction of the skin to introduce medicinal liquid filled in the movable tube to the injection needle, and a sealing material provided at the tip of the support tube and penetratable by the injection needle to penetrate the sealing material. In an initial state, the tip of the injection needle is sealed by the sealing material.

Injector

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

Blood component separation apparatus

Growing community of inventors

Kanagawa, Japan

Takaaki Ohsawa