System and method for coding information on a biosensor test strip
First Claim
1. An electrochemical test strip for measuring a concentration of an analyte of interest in a biological fluid, the test strip comprising:
- a substrate;
a plurality of data encoded on the test strip;
a measurement electrode formed on the substrate;
a first trace loop formed on the substrate, the first trace loop having a first associated resistance;
a second trace loop formed on the substrate, the second trace loop having a second associated resistance, wherein the first and second resistances define a first resistance ratio corresponding to at least one of the plurality of data encoded on the test strip; and
at least a third trace loop formed on the substrate, the identity of which of the plurality of encoded data corresponds to the first resistance ratio being indicated by at least one of the following;
a. connection or lack of connection between the third trace loop and another trace loop,b. the resistance associated with the third trace loop, andc. the ratio of the resistance of the third trace loop with the resistance of another trace loop.
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Accused Products
Abstract
The present invention provides a test strip for measuring a concentration of an analyte of interest in a biological fluid, wherein the test strip may be encoded with information that can be read by a test meter into which the test strip is inserted. In one embodiment, a first test strip comprises: a first measurement electrode connectable to a test meter; a first trace loop with a first associated resistance, where the first trace loop is connectable to the test meter; and a second trace loop with a second associated resistance, where the second trace loop is connectable to the test meter. The test meter is adapted to: receive the first test strip; connect to the first measurement electrode, the first trace loop, and the second trace loop; and obtain a first resistance ratio by comparing the first and second associated resistances.
4 Citations
15 Claims
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1. An electrochemical test strip for measuring a concentration of an analyte of interest in a biological fluid, the test strip comprising:
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a substrate; a plurality of data encoded on the test strip; a measurement electrode formed on the substrate; a first trace loop formed on the substrate, the first trace loop having a first associated resistance; a second trace loop formed on the substrate, the second trace loop having a second associated resistance, wherein the first and second resistances define a first resistance ratio corresponding to at least one of the plurality of data encoded on the test strip; and at least a third trace loop formed on the substrate, the identity of which of the plurality of encoded data corresponds to the first resistance ratio being indicated by at least one of the following; a. connection or lack of connection between the third trace loop and another trace loop, b. the resistance associated with the third trace loop, and c. the ratio of the resistance of the third trace loop with the resistance of another trace loop. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification