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1. 发明申请

US20040200720A1 ELECTROCHEMICAL-SENSOR DESIGN 有权
标题翻译：电化学传感器设计
公开(公告)号：US20040200720A1
公开(公告)日：2004-10-14
申请号：US09861437
申请日：2001-05-21
申请人： Bayer Corporation
发明人： Matthew K. Musho , J. Oakey Noell , Andrew J. Edelbrock , Dijia Huang
IPC分类号： G01N027/327
CPC分类号： C12Q1/001 , G01N27/3274
摘要： Disclosed is an improved electrochemical sensor having a base bearing a working and counter electrode which provides a flow path for a fluid test sample. The working electrode has a reaction layer on its surface which contains an enzyme capable of reacting with an analyte to produce electrons which are received by the working electrode. The base is mated with a cover to form a capillary space into which the test fluid is drawn. The improvement involves configuring the working and counter electrodes so that a major portion of the counter electrode is located downstream on the flow path from the working electrode with the exception of a small sub-element of the counter electrode which is in electrical communication with the primary portion of the counter electrode and located upstream of the working electrode. This configuration provides the sensor with the capability of sending a greatly reduced electrical signal to the device's detecting element in the event that the capillary space is incompletely filled with test fluid. This reduced signal can be manipulated to produce an error signal which affirmatively apprises the device's user that such incomplete filling has occurred.
摘要翻译：公开了一种改进的电化学传感器，其具有承载工作和反电极的基座，其提供用于流体测试样品的流动路径。工作电极在其表面上具有含有能够与分析物反应以产生由工作电极接收的电子的酶的反应层。基座与盖子配合以形成毛细管空间，测试流体被拉入其中。改进之处在于配置工作电极和对电极，使得对电极的主要部分位于来自工作电极的流动路径的下游，除了与电极电连接的对电极的小子元件之外并且位于工作电极的上游。这种配置使得传感器能够在毛细管空间不完全填充测试流体的情况下将大大减小的电信号发送到装置的检测元件。该减小的信号可以被操纵以产生一个误差信号，该误差信号肯定地认识到设备的用户已经发生了这样的不完全填充。

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