Wearable Sensor Device and System
4 Assignments
0 Petitions
Accused Products
Abstract
A system for determining the level of an analyte in a physiological fluid of a live individual is described. A wearable sensor periodically obtains data representative of the level of the analyte and has a passive RFID tag that stores the data. A receiver wirelessly interrogates the sensor with an RF interrogation signal. The RFID tag modulates or otherwise modifies the wireless interrogation signal using the data and the receiver receives back the modulated or otherwise modified interrogation signal and extracts the data from it. The receiver then determines, from the data, the level of the analyte in the fluid. The sensor may be a photometric or colorimetric sensor or an electrochemical sensor. The receiver may be, or be incorporated into, a hand-held device, a portable device, a PDA, a mobile telephone, or a laptop computer. The resulting system is more versatile and consumes less power than conventional systems.
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Citations
97 Claims
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1-48. -48. (canceled)
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49. A system for determining the level of an analyte in a physiological fluid of a user, comprising:
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a sensor configured to be attached to a skin of the user to obtain data representative of a level of at least an analyte in the fluid of the user;
an RFID tag in communication with the sensor to receive the data; and
a remote controller configured to interrogate the RFID tag and receive the data from the RFID tag. - View Dependent Claims (50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 88, 89, 90, 91, 92)
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73. A sensor for use in determining the level of an analyte in a physiological fluid of a user, the sensor comprising:
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a test module having a portion attached to the skin of the user to sample the fluid to determined an analyte level in the fluid; and
an RFID tag configured to convey data representing the analyte level when wirelessly interrogated by a receiver. - View Dependent Claims (74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 93)
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94. A method of transferring data between a sensor attached to a skin surface of a user and a remote receiver, the method comprising:
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attaching a sensor to a skin of a user;
testing a fluid sample of the user;
transferring data representing the level of analyte in the fluid sample to a RFID tag; and
transmitting the data from the RFID tag to the remote receiver upon a query by the receiver. - View Dependent Claims (95, 96, 97)
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Specification