Jonathan R. Coppeta,Robert Farra,Kenneth L. Hilts,Norman F. Sheppard, JR.
申请号：
US13818545
公开号：
US20130211219A1
申请日:
2011.08.12
申请国别(地区):
US
年份:
2013
代理人:
摘要：
Sensor devices and methods are provided for detecting the presence or concentration of an analyte in fluid. The device has a reservoir a working electrode located within the reservoir, a catalyst covering at least part of the working electrode an oxygen-generating auxiliary electrode in the reservoir and a reservoir cap to isolate the working and auxiliary electrodes within the reservoir. The device further includes means for selectively rupturing the cap to permit analyte from outside the reservoir to contact the catalyst. The methods may include in vivo glucose monitoring and may include implanting the device in a patient disintegrating a reservoir cap to permit glucose to enter the reservoir generating oxygen using the oxygen-generating auxiliary electrode and using a working electrode to oxidize hydrogen peroxide produced by the reaction of the oxygen with glucose in the presence of glucose oxidase, and thereby detecting endogenous glucose in the patient.
