Chemistry: electrical and wave energy – Apparatus – Coating – forming or etching by sputtering
Patent
1975-01-29
1976-11-30
Prescott, Arthur C.
Chemistry: electrical and wave energy
Apparatus
Coating, forming or etching by sputtering
3 11, 128214B, 204263, 204271, 204DIG3, 204DIG4, 210321A, 210321B, B01D 1302
Patent
active
039947998
ABSTRACT:
Method and apparatus for blood and tissue detoxification by oxidation of excess undesirable or toxic substances such as ammonia, urea, creatinine, alanine, carbon monoxide, drug overdoses, uric acid, actone, aceto acetate and ethanol in an electrochemical cell which may be implanted or used in an extracorporeal shunt system. The cell may be hybridized with a battery to drive the cell under certain conditions, and the cell may be employed as part of a blood toxic substance level monitoring system. The invention is typified by the case where electrochemical cells convert oxygen and the enumerated toxic substances in the body fluids to harmless products such as CO.sub.2, water and nitrogen which are easily dissipated. The cells have hydrophobic cathodes having a membrane thereover of silicone rubber, polyfluorocarbon, polycarbonate, and copolymers thereof which permit diffusion of oxygen therethrough. The anodes may be either hydrophilic or hydrophobic, the former employing a membrane thereover of cellulose or a cation resin and the latter a silicone rubber toxic substance- diffusible membrane. The electrodes are separated by an anion exchange membrane, or inorganic matrix edge-impregnated with a cation exchange membrane. The cells are simple of construction, and typically thin, wafer-like in form which permits ease of implantation at any desired location in the body. In its broadest aspect, the invention involves the use of electromechanical cells in the manner of artificial organs to remove toxic substances the body is unable to metabolize.
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patent: 3829370 (1974-08-01), Bourat
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Wolfson Sidney K.
Yao Shang J.
Dulin Jacques M.
Prescott Arthur C.
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