Electrode for living bodies
First Claim
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1. A fine wire electrode for measuring gas concentration in living bodies comprising an electrically conductive metal, a high molecular porous membrane of a thickness ranging from 10 to 200 μ
- m directly coated on at least a portion of a surface of said electrically conductive metal, said membrane comprising a surface layer having fine pores of an average pore diameter greater 0.01 μ
m and smaller than 0.7 μ
m and an inner layer which is contiguous with the surface layer having pores of an average diameter greater than that of the surface layer, and an insulating material sheathing the remaining surface of said conductive metal.
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Abstract
An electrode for living bodies consisting of a fine metal wire at least part of the surface of which is directly coated with a porous membrane having fine pores of an average pore diameter of greater than 0.01 μm. The electrode makes it possible to measure the oxygen concentration in the blood vessels and in the living tissues with increased stability and improved response characteristics. Particularly good results are obtained when the porous membrane is a non-homogeneous structure using a cellulose acetate.
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6 Claims
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1. A fine wire electrode for measuring gas concentration in living bodies comprising an electrically conductive metal, a high molecular porous membrane of a thickness ranging from 10 to 200 μ
- m directly coated on at least a portion of a surface of said electrically conductive metal, said membrane comprising a surface layer having fine pores of an average pore diameter greater 0.01 μ
m and smaller than 0.7 μ
m and an inner layer which is contiguous with the surface layer having pores of an average diameter greater than that of the surface layer, and an insulating material sheathing the remaining surface of said conductive metal. - View Dependent Claims (2, 3, 4, 5, 6)
- m directly coated on at least a portion of a surface of said electrically conductive metal, said membrane comprising a surface layer having fine pores of an average pore diameter greater 0.01 μ
Specification