The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Aug. 28, 2007

Filed:

Dec. 26, 2002
Applicants:

Kouichi Tachikawa, Yamanashi, JP;

Shingo Koyama, Kanagawa, JP;

Hiromitsu Okabe, Tokyo, JP;

Inventors:

Kouichi Tachikawa, Yamanashi, JP;

Shingo Koyama, Kanagawa, JP;

Hiromitsu Okabe, Tokyo, JP;

Assignee:

Terumo Kabushiki Kaisha, Shibuya-Ku, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61M 5/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

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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