Analyte monitoring device and methods of use
First Claim
1. An in vivo glucose monitoring system comprising:
- two in vivo working electrodes; and
a receiver unit external to a user in signal communication with the two in vivo working electrodes, the receiver unit comprising;
one or more processors; and
a computer-readable storage medium including instructions which, when executed by the one or more processors, causes the one or more processors to;
receive signals from both of the working electrodes indicative of a glucose level of the user;
process the signals received from both of the working electrodes; and
determine the acceleration of the rate of change of the glucose level.
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Accused Products
Abstract
An analyte monitor includes a sensor, a sensor control unit, and a display unit. The sensor has, for example, a substrate, a recessed channel formed in the substrate, and conductive material disposed in the recessed channel to form a working electrode. The sensor control unit typically has a housing adapted for placement on skin and is adapted to receive a portion of an electrochemical sensor. The sensor control unit also includes two or more conductive contacts disposed on the housing and configured for coupling to two or more contact pads on the sensor. A transmitter is disposed in the housing and coupled to the plurality of conductive contacts for transmitting data obtained using the sensor. The display unit has a receiver for receiving data transmitted by the transmitter of the sensor control unit and a display coupled to the receiver for displaying an indication of a level of an analyte. The analyte monitor may also be part of a drug delivery system to alter the level of the analyte based on the data obtained using the sensor.
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Citations
42 Claims
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1. An in vivo glucose monitoring system comprising:
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two in vivo working electrodes; and a receiver unit external to a user in signal communication with the two in vivo working electrodes, the receiver unit comprising; one or more processors; and a computer-readable storage medium including instructions which, when executed by the one or more processors, causes the one or more processors to; receive signals from both of the working electrodes indicative of a glucose level of the user; process the signals received from both of the working electrodes; and determine the acceleration of the rate of change of the glucose level. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. An in vivo glucose monitoring system, comprising:
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two in vivo working electrodes; and a receiver unit external to a user in signal communication with the two in vivo working electrodes, the receiver unit comprising; one or more processors; and a computer-readable storage medium including instructions which, when executed by the one or more processors, causes the one or more processors to; receive signals from the two working electrodes indicative of a glucose level of the user; compare the signals received from the two working electrodes; discard one of the signals received from the two working electrodes after the comparison; and determine the acceleration of the rate of change of the glucose level using the non-discarded signal. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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29. An in vivo glucose monitoring system comprising:
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a first in vivo working electrode including a first sensing layer disposed thereon, wherein the first sensing layer is configured to electrolyze glucose; a second in vivo working electrode including a second sensing layer disposed thereon, wherein the second sensing layer does not include one or more components needed to electrolyze glucose; and a receiver unit external to a user in signal communication with the first and second in vivo working electrodes, the receiver unit comprising; one or more processors; and a computer-readable storage medium including instructions which, when executed by the one or more processors, causes the one or more processors to; receive signals from the first and second working electrodes indicative of a glucose level of the user; subtract the signal received from the second electrode from the signal received from first electrode to obtain an adjusted signal; and determine the acceleration of the rate of change of the glucose level using the adjusted signal. - View Dependent Claims (30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42)
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Specification