Method Of Manufacturing An Auto-Calibrating Sensor
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Accused Products
Abstract
The invention concerns a sensor that, when exposed to a fluid, develops a measurable characteristic that is a function of the level of an analyte in the fluid and of a calibration quantity of the sensor. A calibration quantity is some physical, chemical or other inherent property that the sensor possesses that affects its response to the analyte. The sensor includes an RFID tag that receives, stores and conveys information representing the calibration quantity. The wireless device is incorporated into or attached to the sensor during the manufacturing process and before the sensor is calibrated. The wireless device can be written wirelessly once the calibration has been done. This does not involve any additional handling of the sensor and can be done once the sensor has been placed into a protective enclosure. Because of this, the process of wirelessly transmitting the calibration information to the wireless device does not alter any pre-existing calibration quantities and neither does it introduce any new calibration quantities, thus preserving the calibration of the sensor even though the sensor has been wirelessly modified to carry information representing its calibration quantity.
363 Citations
74 Claims
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1-52. -52. (canceled)
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53. A method of making an analyte sensor, the method comprising:
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providing a batch of analyte sensors; affixing an RFID tag to each of the batch of sensors; determining a calibration quantity for the batch of sensors; and writing the calibration quantity specific to the batch of sensor to each of the RFID tag. - View Dependent Claims (54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 70, 71)
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69. A method of manufacturing an analyte sensor, the method comprising:
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providing a continuous web substrate having a plurality of arrays on the substrate; forming at least a conductive layer in each of the array, the at least one conductive layer including an antenna; depositing reagent on each of the arrays of the substrate; determining a calibration quantity of a sample of the plurality of arrays; connecting a wireless transponder free of a power source to the conductive layer of each of the arrays of the substrate; writing the calibration data to each wireless transponder of the plurality of arrays; and forming an insulation layer over each of the arrays.
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72. A method of using an analyte sensor, the method comprising:
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affixing a wireless transponder free of a power source to the analyte test sensor; writing data specific to the analyte test sensor to the wireless transponder; energizing the wireless transponder via a remote transceiver; and transferring the data from the wireless transponder to the remote transceiver. - View Dependent Claims (73, 74)
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Specification