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:
Feb. 04, 1986

Filed:

Apr. 18, 1985
Applicant:
Inventors:

Michihiro Nakamura, Soja, JP;

Makoto Yano, Kurashiki, JP;

Hidehiko Ikeya, Kurashiki, JP;

Hiroshi Tsurumi, Kurashiki, JP;

Osamu Kusudo, Kurashiki, JP;

Yoshito Hamamoto, Kurashiki, JP;

Assignee:

Kuraray Co., Ltd., Kurashiki, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ; G01N / ;
U.S. Cl.
CPC ...
204412 ; 128635 ; 204403 ; 204416 ; 204435 ; 357 25 ;
Abstract

An apparatus for measuring the quantities of chemical substances contained in a solution to be assayed by using a chemical-substance sensitive sensor consists of a potentiometric electrode which responds selectively to chemical substances, and a liquid-junction type reference electrode including a tube, a porous thread member housed in the front end opening of the tube and having a pore capacity of 0.2 cc/g or more and at least the surface of which is hydrophilic, a silver-silver chloride wire is provided and housed in the tube so that at one end of the wire is in contact with the thread member and the wire which extends along the tube. The wire is connected to a connector at the other end opening of the tube, an electrical insulating resin fills said tube, at least at the front end portion thereof, for fixing both the silver-silver chloride wire and the thread member by contact therewith and for stopping said tube. An internal solution is retained by suction in said porous thread member. This apparatus is advantageously used for monitoring the living body and may be thermally sterilized.


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