METHOD AND APPARATUS FOR ANALYTE DATA TELEMETRY
First Claim
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1. A method of providing a transmission signal indicative of a level of an analyte in a body of an animal, comprising:
- introducing a sensor, fully or partially, into the body of the animal, said sensor coupled to a sensor control unit having a radio frequency (RF) transmitter;
acquiring from said sensor a variable voltage indicative of the level of the analyte in the body of the animal;
converting said variable voltage to digital data;
digitally modulating a first audio sub-carrier signal using said digital data;
modulating an RF carrier signal using the digitally modulated audio sub-carrier signal to create for transmission by said transmitter a transmission signal indicative of the level of the analyte in the body of the animal.
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Abstract
Embodiments of the present invention provide methods and apparatuses for telemetry, more specifically, methods and apparatuses for providing telemetry in association with medical devices. Exemplary embodiments of the present invention provide continuous telemetry between a transmitter and a monitoring unit, for example in a medical monitoring environment.
111 Citations
33 Claims
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1. A method of providing a transmission signal indicative of a level of an analyte in a body of an animal, comprising:
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introducing a sensor, fully or partially, into the body of the animal, said sensor coupled to a sensor control unit having a radio frequency (RF) transmitter;
acquiring from said sensor a variable voltage indicative of the level of the analyte in the body of the animal;
converting said variable voltage to digital data;
digitally modulating a first audio sub-carrier signal using said digital data;
modulating an RF carrier signal using the digitally modulated audio sub-carrier signal to create for transmission by said transmitter a transmission signal indicative of the level of the analyte in the body of the animal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. An apparatus comprising:
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an analyte sensor adapted for full or partial implantation into a body of an animal for acquisition of data indicative of a level of an analyte in the body; and
a sensor control unit coupled to said sensor, said sensor control unit comprising a radio frequency (RF) transmitter, said RF transmitter adapted to transmit an RF carrier signal and to receive as amplitude modulation of the RF carrier signal an audio sub-carrier signal, wherein the audio sub-carrier signal has been digitally modulated and comprises digital data derived from the acquired data indicative of a level of an analyte in the body. - View Dependent Claims (18, 19, 20, 21, 22, 23)
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24. A system, comprising:
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an analyte sensor for acquiring data indicative of a level of an analyte in a body;
a sensor control unit coupled to said analyte sensor and for coupling to the body;
a transmitter for transmitting a signal carrying the data indicative of the level of the analyte in the body, said transmitter coupled to said sensor control unit, wherein said transmitter is adapted to transmit a radio frequency (RF) carrier signal and to receive as modulation of the RF carrier signal an audio sub-carrier signal, wherein the audio sub-carrier signal has been digitally modulated and comprises data acquired from the analyte sensor; and
a receiver for receiving the signal carrying data indicative of the level of the analyte in the body, said receiver being in an external monitoring unit in telemetric communication with said sensor control unit, wherein said receiver is adapted to demodulate the modulated RF carrier signal to obtain the data indicative of the level of the analyte in the body and to display the data on said external monitoring unit. - View Dependent Claims (25, 26, 27, 28)
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29. A system of transmitting analyte-dependent data using multiple transmitters, comprising:
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an analyte sensing system having at least one sensor control unit for coupling to a body;
a first transmitter for transmitting in a first transmission pattern data indicative of a level of an analyte in the body, said first transmitter coupled to said sensor control unit; and
a second transmitter for transmitting data in a second transmission pattern. - View Dependent Claims (30, 31, 32, 33)
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Specification