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:
Mar. 23, 2004
Filed:
Mar. 27, 2001
NEC Corporation, Tokyo, JP;
Abstract
A device and method are provided using a sensor containing an electrode with an enzyme layer to determine a component in a liquid sample. Inlet and outlet channels feed liquid sample to and from the sensor surface. The inlet channel is placed an angle of preferably 1 to 80 degrees to the sensor surface, and an inlet channel end opening is at a distance from the sensor surface of preferably two fold or less of an inlet channel inner diameter. The angle and distance provide good measurement accuracy, stable measurement sensitivity and rapid response. The sensor may be vertically sandwiched between upper and lower parts, and be removable from the upper part. Liquid sample is continuously moved from the inlet channel over the sensor surface and discharged through the outlet channel. Liquid sample speed over the sensor surface is adjusted to provide sensor output in proportion to concentration of the liquid.