D.C. biopotential sensing electrode and electroconductive medium for use therein,申请号US19950508206-传众专利搜索

D.C. biopotential sensing electrode and electroconductive medium for use therein

申请公布号：US5823957(A)

申请号：US19950508206

申请日期：1995.07.27

申请公布日期：1998.10.20

申请人：

BIOFIELD CORP

发明人：FAUPEL, MARK L.;BARRETT, BURKE T.;STEPHENS, JOHN D.;NATHANSON, SETH D.

分类号：A61B5/0408;A61B5/05;A61B5/053;(IPC1-7):A61B5/040

主分类号：A61B5/0408

摘要：A DC biopotential sensing electrode assembly is provided for an apparatus for sensing DC biopotentials present at the skin of a subject. An electroconductive medium for transmitting ions from the skin which has a chloride ion content within a range of from 6-15 grams per hundred grams of such medium is formulated for use with the electrode. To reduce the corrosive effect of this electroconductive medium, each electrode includes only one metallic component, and to provide an electrode with a low AC impedance, this metal is uniformly coated upon nonmetallic sensor and terminal bodies with a coating thickness within a range of from 0.5 to 1.5 mil. To insure a complete electrical path through both the sensor and the terminal bodies, the nonmetallic portions are formed of conductive plastic.