ANALYTE SENSING AND RESPONSE SYSTEM
First Claim
Patent Images
1. An infusion system for infusing a fluid into a subject, comprising:
- a first sensor configured to monitor concentration of an analyte in the subject and to generate a sensor output signal based on the monitored concentration, wherein the sensor output signal is used to generate a processor input signal;
a front-loaded fluid delivery processor configured to process the processor input signal and to generate a processor output signal having a fluid delivery period and a refractory period; and
a fluid delivery system configured to infuse fluid into the subject in a manner based at least partially on the processor output signal.
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Abstract
Electrochemical systems for measuring an analyte concentration, and correcting any surplus or deficiency in the measured concentration. More specifically, systems for measuring an analyte level in a fluid with an implantable sensor, processing the measurements with a front-loaded delivery algorithm having a fluid delivery period and a refractory period, and determining an appropriate fluid infusion rate in response to the measurements.
111 Citations
33 Claims
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1. An infusion system for infusing a fluid into a subject, comprising:
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a first sensor configured to monitor concentration of an analyte in the subject and to generate a sensor output signal based on the monitored concentration, wherein the sensor output signal is used to generate a processor input signal; a front-loaded fluid delivery processor configured to process the processor input signal and to generate a processor output signal having a fluid delivery period and a refractory period; and a fluid delivery system configured to infuse fluid into the subject in a manner based at least partially on the processor output signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method of determining a fluid infusion rate for infusing a fluid into a subject, comprising:
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monitoring concentration of an analyte in the subject; generating a sensor output signal based on the monitored concentration; generating a processor input signal from the sensor output signal; processing the processor input signal using a front-loaded fluid delivery algorithm to generate a processor output signal having a fluid delivery period and a refractory period following the fluid delivery period; and determining the fluid infusion rate based at least partially on the processor output signal. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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26. A method of controlling concentration of an analyte in a mammal, comprising:
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repeatedly measuring concentration of an analyte in a mammal with a first sensor implanted in the mammal; using a front-loaded algorithm to compute a fluid delivery rate based on the measured analyte concentration; and delivering fluid to the mammal at the computed fluid delivery rate, the computed fluid delivery rate including a fluid delivery period and a refractory period. - View Dependent Claims (27, 28, 29, 30, 31, 32, 33)
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Specification