Systems and methods for detecting hypoglycemic events having a reduced incidence of false alarms
First Claim
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1. A method for establishing a critical sampling rate for a continuous glucose monitor having a continuous glucose sensor, processor, and memory, the method comprising the steps of:
- establishing with the processor and memory of the glucose monitor, a preferred number of measurements within a target zone, a predetermined critical threshold, and a predetermined hypoglycemic threshold, in which the target zone comprises a number of glucose measurements measured within a glucose concentration interval and within a time interval wherein said preferred number is about three;
measuring with a continuous glucose sensor a plurality of glucose concentrations at a predetermined first sampling rate;
calculating with the processor an actual rate of change in glucose concentration based on said plurality of glucose concentrations;
modifying with the processor, said first sampling rate to a second sampling rate using a function based on said preferred number of measurements within a target zone, said predetermined critical threshold, said predetermined hypoglycemic threshold, and said actual rate of change in glucose concentration; and
activating a hypoglycemic alarm to detect a hypoglycemic glucose concentration once said first sampling rate is modified to give a second sampling rate.
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Abstract
The present invention is directed to a method of reducing false readings in a hypoglycemic detector that includes establishing a predetermined hypoglycemic threshold, a predetermined critical threshold, a predetermined rate of change in glucose concentration where the predetermined critical threshold is below the predetermined hypoglycemic threshold. A first sampling rate is then calculated based upon said predetermined hypoglycemic threshold, said predetermined critical threshold, and said predetermined rate of change in glucose concentration.
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6 Claims
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1. A method for establishing a critical sampling rate for a continuous glucose monitor having a continuous glucose sensor, processor, and memory, the method comprising the steps of:
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establishing with the processor and memory of the glucose monitor, a preferred number of measurements within a target zone, a predetermined critical threshold, and a predetermined hypoglycemic threshold, in which the target zone comprises a number of glucose measurements measured within a glucose concentration interval and within a time interval wherein said preferred number is about three; measuring with a continuous glucose sensor a plurality of glucose concentrations at a predetermined first sampling rate; calculating with the processor an actual rate of change in glucose concentration based on said plurality of glucose concentrations; modifying with the processor, said first sampling rate to a second sampling rate using a function based on said preferred number of measurements within a target zone, said predetermined critical threshold, said predetermined hypoglycemic threshold, and said actual rate of change in glucose concentration; and activating a hypoglycemic alarm to detect a hypoglycemic glucose concentration once said first sampling rate is modified to give a second sampling rate. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification