Bacterial barrier for indwelling catheters and other medical devices
First Claim
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1. A bacterial barrier for medical devices comprising:
- a thin, flexible nonconductive substrate;
an electric power cell;
a continuous strip of an oligodynamic metal on the substrate;
a conductive material on the substrate separated from the oligodynamic metal;
the oligodynamic metal and conductive material being connected to oxidizing and reducing poles respectively of the electric power cell such that an open circuit is formed which circuit is closed by body fluids when the medical device with bacterial barrier is installed in a patient and such that the oligodynamic metal is oxidized forming ions of the oligodynamic metal.
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Abstract
A novel bacterial barrier for medical devices is disclosed comprising a strip or band of oligodynamic metal connected to another conductor generally connected in open circuit to a power cell and producing a strategic circumferential zone of bacterial inhibition when the medical device is installed.
112 Citations
15 Claims
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1. A bacterial barrier for medical devices comprising:
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a thin, flexible nonconductive substrate; an electric power cell; a continuous strip of an oligodynamic metal on the substrate; a conductive material on the substrate separated from the oligodynamic metal; the oligodynamic metal and conductive material being connected to oxidizing and reducing poles respectively of the electric power cell such that an open circuit is formed which circuit is closed by body fluids when the medical device with bacterial barrier is installed in a patient and such that the oligodynamic metal is oxidized forming ions of the oligodynamic metal. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An improved medical device for shunting body fluids having a bacterial barrier around the outside circumference thereof comprising:
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a nonconductive substrate; at least one band of an oligodynamic metal on the substrate; an electric power cell; a conductive material on the substrate separated from the oligodynamic metal; the oligodynamic metal and conductive material being connected to oxidizing and reducing poles respectively of the electric power cell such that an open circuit is formed which circuit is closed by body fluids when the medical device with bacterial barrier is installed in a patient and such that the oligodynamic metal band is oxidized forming ions of the oligodynamic metal. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15)
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Specification