Terumo Kabushiki Kaisha

Hiromitsu Okabe

Shingo Koyama

Kouichi Tachikawa

Masaomi Imai

Masafumi Takemoto

A drug solution injector comprises a needle tube having a sharp needlepoint, a bottomed outer cylinder arranged on the base end side of the needle tube and having an inside space communicable with the inside of the needle tube, a gasket slidable within the outer cylinder, a drug solution in the space formed by the outer cylinder and the gasket, a support member supporting the needle tube and having a flow channel communicating with the inside of the needle tube, an operation mechanism permitting selection between a communicated state wherein the inside of the needle tube and the inside of the outer cylinder communicate with each other through the flow channel and a blocked state wherein the communication is blocked by rotating the support member, and an exposure preventer for preventing exposure of the needlepoint.

Drug solution injector

A medical apparatus includes: a first vessel for supplying a first liquid; a second vessel for supplying a second liquid; a mixing vessel for mixing the first and second liquids; a connector including a first flow passage connected to the first vessel, a second flow passage connected to the second vessel, a third flow passage connected to the mixing vessel and joined to the first flow passage and the second flow passage, and a discharge port which communicates with the third flow passage; and a flow passage opening/closing device provided in the third flow passage at a joint part where the first flow passage and the second flow passage join the third flow passage or at a part on a discharge port side relative to the joint part and which is operative to open/close the third flow passage.

Medical apparatus

A syringe with which an accurate amount of a liquid can be discharged by a simple operation. The syringeincludes an outer tube, a gasketslidable in the outer tube, a pusheroperable for moving the gasket, and a stopperdisposed to be slidable along the longitudinal direction of the pusher. The stopperis fixed relative to the pusherby the engagement of engaging portions, provided therein, with racksformed on the pusher. When an operating portionis depressed, the fixation condition is released, permitting regulation of the position of the stopperon the pusher. When the depression on the operating portionis canceled, the fixation condition is retained. When the pusheris pressed in the tip end direction, a tip end faceof the stoppercomes into contact with a base end portionof the outer tube, whereby the depth of insertion of the pusherinto the outer tubeis restricted, and a set amount of a chemicalis discharged through a diameter-reduced portion

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Tokyo, Japan

Hiromitsu Okabe