Electrochemical sensor with multiple zones on a disc and its application to the quantitative analysis of glucose
First Claim
1. A disposable electrochemical sensor having multiple measuring zones that are sequentially separable, and using a single sensor which is introduced into a measuring apparatus for carrying out several successive measurements of the same physico-chemical characteristic or of a concentration of the same component present in a solution, an effluent or a fluid, said sensor comprising:
- a thin, insulating rigid support in the shape of a disc;
at least two current collectors of identical or different conducting materials arranged on the disc to be insulated from each other and each having portions or extensions situated in a peripheral border adjacent to the periphery of the disc, said portions or extensions forming electrodes in the measuring zones connected to each other by a corresponding one of said current collectors, and each of said current collectors extending up to a zone close to the center of the disc where said current collector has a terminal part shaped to provide a contact zone;
drive means for rotating the disc; and
guide means for positioning the measuring zones in the measuring apparatus and for isolating a used measuring zone from the other, still unused, measuring zones.
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Accused Products
Abstract
An electrochemical sensor having multiple measuring zones (34) that are sequentially insulatable, disposed on the circumference of an insulating disc (1) and associated with each other by peripheral current collectors (16, 17) which extend radially inward up to central zones where they form contacts (23, 24) for a measuring apparatus. The disc-sensor also has a device (6) for rotating the disc, and guide marks for positioning (11) and for isolating (7) the measuring zones (34), and may be contained in a housing (40). The invention is useful in the quantitative analysis of glucose.
310 Citations
20 Claims
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1. A disposable electrochemical sensor having multiple measuring zones that are sequentially separable, and using a single sensor which is introduced into a measuring apparatus for carrying out several successive measurements of the same physico-chemical characteristic or of a concentration of the same component present in a solution, an effluent or a fluid, said sensor comprising:
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a thin, insulating rigid support in the shape of a disc; at least two current collectors of identical or different conducting materials arranged on the disc to be insulated from each other and each having portions or extensions situated in a peripheral border adjacent to the periphery of the disc, said portions or extensions forming electrodes in the measuring zones connected to each other by a corresponding one of said current collectors, and each of said current collectors extending up to a zone close to the center of the disc where said current collector has a terminal part shaped to provide a contact zone; drive means for rotating the disc; and guide means for positioning the measuring zones in the measuring apparatus and for isolating a used measuring zone from the other, still unused, measuring zones. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification