Electrochemical biosensor and biosensor measuring device

• US 20080237062A1
• Filed: 05/14/2007
• Published: 10/02/2008
• Est. Priority Date: 03/28/2007
• Status: Active Grant

• Current Assignee: i-SENS, Inc.
• Original Assignee: i-SENS, Inc.
• Inventors: Cui, Gang, Kim, Moon Hwan, Nam, Hakhyun, Cha, Geun Sig, Yoo, Jae Hyun, Kim, Keun Ki
• Granted Patent: US 7,695,608 B2
• Time in Patent Office: Days
• US Class Current: 205/777.5
• CPC Class Codes: B01L 2300/0645 Electrodes
• CPC Class Codes: B01L 2300/0825 Test strips
• CPC Class Codes: B01L 2300/0887 Laminated structure
• CPC Class Codes: B01L 2400/0406 capillary forces
• CPC Class Codes: B01L 3/5027 by integrated microfluidic structures, i.e. dimensions of channels and chambers are such that surface tension forces are important, e.g. lab-on-a-chip B01L3/5023 takes precedence; micromixers B01F33/30; microreactors for synthesis B01J19/0093; microcapillary devices in general B81B1/00
• CPC Class Codes: B01L 3/545 for laboratory containers
• CPC Class Codes: G01N 2035/00772 mechanical or optical code other than bar code
• CPC Class Codes: G01N 2035/00851 process control parameters
• CPC Class Codes: G01N 27/3272 Test elements therefor, i.e. disposable laminated substrates with electrodes, reagent and channels optical biosensors G01N33/52
• CPC Class Codes: G01N 35/00732 Identification of carriers, materials or components in automatic analysers

Abstract

An electrochemical biosensor and a biosensor measuring device. The electrochemical biosensor includes a plurality of electrodes, capillary sample cell portions, reaction reagent layers, electrode connection portions, and a production lot information identification portion. The production lot information identification portion is configured such that the production lot information is recorded thereon has one or more infrared absorption/reflection marks, which indicate information about differences between production lots through the printing and/or attachment of colored or colorless materials, having differences in absorbency or reflectivity of infrared rays, in conformity of a predetermined pattern or through the attachment of transparent films. The electrochemical biosensor measuring device includes a plurality of integrated photo-reflector sensing devices that emit and receive infrared rays to identify the production lot information recorded on the production lot information identification portion of the biosensor.

Claims

1. An electrochemical biosensor prepared on at least two insulating plates, comprising:

a plurality of electrodes, capillary sample cell, reaction reagent layers, electrical connection portions; and

a production lot information identification portion configured such that production lot information is recorded on at least one insulating plate;

wherein the production lot information identification portion configured such that the production lot information is recorded thereon has infrared absorption/reflection marks, which indicate information about differences between production lots through printing of colored or colorless materials or attachment of transparent films, having differences in absorbency or reflectivity of infrared rays, in conformity of a predetermined pattern.

2. The electrochemical biosensor as set forth in claim 1, wherein the colored or colorless materials, or the transparent films, absorb light having a wavelength ranging from 700 to 1100 nm.

3. The electrochemical biosensor as set forth in claim 1, wherein a number of infrared absorption/reflection marks ranges 1 to 10.

4. An electrochemical biosensor measuring device quantitatively determining analytes using the electrochemical biosensor set forth in claim 3, wherein the electrochemical biosensor measuring device, comprising a plurality of integrated photo-reflector sensing devices that emit and receive reflected infrared rays in one component chip mounted on the same PCB of electrochemical measuring device to identify the infrared absorbing/reflecting production lot information recorded on the production lot information identification portion of the biosensor.

5. The electrochemical biosensor measuring device as set forth in claim 4, wherein a number of integrated photo-reflector sensing devices is identical to the number of infrared absorption/reflection marks that are printed on and/or attached to the biosensor.

6. The electrochemical biosensor measuring device as set forth in claim 4, wherein the plurality of integrated photo-reflector sensing devices comprise respective light-emitting units that simultaneously or sequentially emit the infrared rays.

7. The electrochemical biosensor measuring device as set forth in claim 4, wherein the received infrared rays for the production lot information is detected by respective light-receiving units of the photo-reflector sensing devices without using separate filters.

8. The electrochemical biosensor measuring device as set forth in claim 4, wherein the reflector sensing devices are used to identify the production lot information recorded in the biosensor, together with a electrical connector having a structure in which one or more infrared absorption or reflection path(s) of light-emitting unit/production lot information identification portion/light-receiving unit, can be provided.

9. The electrochemical biosensor measuring device as set forth in claim 8, wherein the photo-reflector sensing devices are provided such that the infrared absorption or reflection paths are provided in an upper or lower end portion of the connector, which is configured such that the biosensor is inserted thereinto and is electrically connected therewith.

10. The electrochemical biosensor measuring device as set forth in claim 8, wherein the photo-reflector sensing devices are integrated such that the infrared absorption or reflection paths are provided in the connector, which is configured such that the biosensor is inserted thereinto and is electrically connected therewith.

11. A measuring method using a biosensor measuring device, comprising:

a first step of inserting a biosensor, in which a production lot information identification portion on which production lot information is recorded is provided, and causing power to be activated;

a second step of identifying the production lot information of the biosensor, which is inserted at the first step, by detecting the production lot information identification portion provided in the biosensor while a plurality of photo-reflector sensing devices operates simultaneously or sequentially in the measuring device;

a third step of activating measurement and operation processes of the biosensor measuring device in conformity with the production lot information identified at the second step; and

a fourth step of injecting liquid sample, creating electrochemical quantitative information about the sample, a quantifying specific component of the liquid sample, and displaying quantified results.