System for in-vitro measurement of an analyte concentration
First Claim
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1. A system for in-vitro measurement of blood glucose concentration in a human, comprising:
- a base station comprising,a base power source to supply power to components of the base station;
an implantable sensor for generating measurement signals that are correlated to a blood glucose concentration to be measured;
a pre-amplifier for amplifying the measurement signals;
a signal processor for processing the measurement signals to produce compressed measuring data that is compressed at least ten-times compared to the measurement signals,base memory for storing compressed measurement data;
a transmitter for wireless transmission of the compressed measurement data; and
,a display device comprising,a display device power source that has greater capacity than the base power source to supply power to components of the display device;
a user input for inputting data into the display device;
a receiver for receiving the wireless transmission of the compressed measurement data from the base unit,a microprocessor for processing the compressed measurement data to determine the blood glucose concentration;
a display for displaying blood glucose concentration.
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Abstract
The analyte concentration, such as glucose, in a human or animal body is measured with an implantable sensor that generates measurement signals. The measurement signals are compressed through statistical techniques to produced compressed measurement data that can is easier to process and communicate. A base station carries the implantable sensor along with a signal processor, memory, and a transmitter. A display device is also disclosed that can receive the compressed measurement data from the base station for further processing and display.
137 Citations
15 Claims
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1. A system for in-vitro measurement of blood glucose concentration in a human, comprising:
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a base station comprising, a base power source to supply power to components of the base station; an implantable sensor for generating measurement signals that are correlated to a blood glucose concentration to be measured; a pre-amplifier for amplifying the measurement signals; a signal processor for processing the measurement signals to produce compressed measuring data that is compressed at least ten-times compared to the measurement signals, base memory for storing compressed measurement data; a transmitter for wireless transmission of the compressed measurement data; and
,a display device comprising, a display device power source that has greater capacity than the base power source to supply power to components of the display device; a user input for inputting data into the display device; a receiver for receiving the wireless transmission of the compressed measurement data from the base unit, a microprocessor for processing the compressed measurement data to determine the blood glucose concentration; a display for displaying blood glucose concentration. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A base station for in-vitro measurement of blood glucose concentration in a human, comprising:
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a base power source to supply power to components of the base station; an implantable sensor for generating measurement signals that are correlated to a blood glucose concentration to be measured; a pre-amplifier for amplifying the measurement signals; a signal processor for processing the measurement signals to produce compressed measuring data that is compressed by at least a factor of ten compared to the measurement signals by selected sampling of the measurement signals and statistical processing of the measurement signals; base memory for storing compressed measurement data; and
,a transmitter for wireless transmission of the compressed measurement data. - View Dependent Claims (9, 10, 11)
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12. A base station for in-vitro measurement of blood glucose concentration in a human, comprising:
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a base power source to supply power to components of the base station; an implantable sensor for generating measurement signals that are correlated to a blood glucose concentration to be measured; a pre-amplifier for amplifying the measurement signals; means for signal processing for processing the measurement signals to produce compressed measuring data; base memory for storing compressed measurement data; and
,a transmitter for wireless transmission of the compressed measurement data.
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13. A method of compressing data from in-vitro measurement of an analyte concentration in a human, comprising:
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forming pairs of measurement signals from raw data generated for a lime interval; determining a slope of a line connecting each pair of measurement signals; calculating a median value of each slope of the line connecting each pair of measurement signals; and
,calculating a compressed data value for each time interval from the median value of each slope of the line connecting each pair of measurement signals and the compressed data value of a preceding time interval. - View Dependent Claims (14, 15)
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Specification