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.
Patent No.:
Date of Patent:
Nov. 05, 1991
Filed:
Feb. 20, 1990
Applicant:
Inventor:
Tatsuharu Ito, Tokyo, JP;
Assignee:
Ito Corporation, Shizuoka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01L / ; G01N / ; A61M / ;
U.S. Cl.
CPC ...
422100 ; 604218 ; 7386416 ;
Abstract
An analytical microsyringe includes a syringe body, an injection needle fixed to the inner surface at one end of the syringe body, a linear plunger formed of superelastic wire and a knob integrally fixed to the rear end of the linear plunger. The linear plunger has the front end thereof formed to have a diameter large enough to tightly and slidably contact the inner surface of the syringe body and a portion thereof other than the large-diameter front end formed to have a smaller diameter and keep clear of the inner surface of the syringe body.