1983-06-29
1986-03-18
Cohen, Lee S.
Surgery
Truss
Pad
128642, 128784, A61B 504
Patent
active
045761744
ABSTRACT:
An improved micro electrode and in its production method is disclosed. The electrode includes a tapering capillary tube of which the thicker end is 2 mm or smaller in the outside diameter, a conductive filament of 50 .mu.m or smaller in the outside diameter, an outer lead wire and a filler which is packed in the cavity of the capillary tube. The improvement comprising a direct connection of the conductive filament with the outer lead wire in the cavity of the capillary tube and the use of an insulating resin as the filler. The production method comprises a step of threading the conductive filament into the tapering capillary tube to make the tip of the filament project from the needle end of the capillary tube. The method is improved by filling at least part of the cavity of the capillary tube with a volatile solvent to facilitate the threading.
REFERENCES:
patent: 4417581 (1983-11-01), Dawson
patent: 4461304 (1984-07-01), Kuperstein
Armstrong-James et al., "Carbon Fibre Microelectrodes"; J. of Neuroscience Methods, 1, No. 3; 10-1979, pp. 279-287.
Alferdinck et al.; "Two Types of Bipolar Microelectrodes for Intraretinal Use"; J. of Neuroscience Methods; 3, No. 4; 4-1981, pp. 397-404.
DeLuca et al.; "An Electrode for Recording Single Motor Unit Activity During Strong Muscle Contractions", IEEE Trans. on Biomed. Engr., vol. BME-19, No. 5, 9-1972, pp. 367-372.
Starrenburg et al.; "Carbon Fiber as an Electrode Material"; IEEE Trans. on Biomed. Engr., vol. BME-29, No. 5; 5-1982, pp. 352-355.
Analytical Chemistry, vol. 51, No. 9, pp. 1483-1486 (1979).
Ikeda Masato
Miyazaki Hiroshi
Cohen Lee S.
Shionogi & Company, Ltd.
Sykes Angela D.
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