Methods and systems for detecting the hydration of sensors
First Claim
1. A program code storage device, comprising:
- a computer-readable medium; and
non-transitory computer-readable program code, stored on the computer-readable medium, the computer-readable program code having instructions, which when executed cause a controller to;
transmit a stabilization initiation signal to a digital-to-analog converter (DAC) to begin application of a stabilization series of pulses to a sensor during hydration of the sensor, said sensor including a plurality of electrodes that are implanted or disposed subcutaneously within a patient'"'"'s body so as to be in continuous contact with the patient'"'"'s bodily fluids;
receive an interrupt from a detection circuit indicating that the sensor is hydrated;
set a first indicator that the interrupt has been received from the detection circuit; and
set a second indicator once the stabilization series of pulses has been applied to the sensor.
1 Assignment
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Accused Products
Abstract
A sensor system includes a sensor and a sensor electronics device. The sensor includes a plurality of electrodes. The sensor electronics device includes a connection detection device, a power source, and a delay circuit. The connection detection device determines if the sensor electronics device is connected to the sensor and transmits a connection signal. The delay circuit receives the connection signal, waits a preset hydration time, and couples the regulated voltage from the power source to an electrode in the sensor after the preset hydration time has elapsed. Alternatively, the sensor electronics device may include an electrical detection circuit and a microcontroller. The electrical detection circuit determines if the plurality of electrodes are hydrated and generates an interrupt if the electrodes are hydrated. A microcontroller receives the interrupt and transmits a signal representative of a voltage to an electrode of the plurality of electrodes.
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Citations
5 Claims
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1. A program code storage device, comprising:
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a computer-readable medium; and non-transitory computer-readable program code, stored on the computer-readable medium, the computer-readable program code having instructions, which when executed cause a controller to; transmit a stabilization initiation signal to a digital-to-analog converter (DAC) to begin application of a stabilization series of pulses to a sensor during hydration of the sensor, said sensor including a plurality of electrodes that are implanted or disposed subcutaneously within a patient'"'"'s body so as to be in continuous contact with the patient'"'"'s bodily fluids; receive an interrupt from a detection circuit indicating that the sensor is hydrated; set a first indicator that the interrupt has been received from the detection circuit; and set a second indicator once the stabilization series of pulses has been applied to the sensor. - View Dependent Claims (2)
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3. A sensor system, comprising:
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a sensor, the sensor including a plurality of electrodes that are configured to be implanted or disposed subcutaneously within a patient'"'"'s body so as to be in continuous contact with the patient'"'"'s bodily fluids; and a sensor electronics device that is coupled to the sensor and includes; a microcontroller that transmits a stabilization signal, said stabilization signal being representative of a voltage sequence to be applied to the sensor; a digital-to-analog converter (DAC) that receives the stabilization signal and begins application of said voltage sequence to the sensor during hydration of the sensor; and a detection circuit that receives a hydration signal and generates a first interrupt after receipt of the hydration signal, wherein the microcontroller receives said first interrupt and sets a first indicator indicating the sensor is hydrated, wherein the microcontroller sets a second indicator after said voltage sequence has been applied to the sensor, wherein the microcontroller receives a sensor signal from the sensor, and wherein, when the first and second indicators are set, the microcontroller utilizes said sensor signal representing measurement of a physiological characteristic of the patient. - View Dependent Claims (4, 5)
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Specification