System for monitoring safety in medication delivery for diabetes management
First Claim
1. A method of diabetes management, comprising:
- sensing glucose level from a glucose sensor and providing sensor glucose data representative of sensed glucose level;
calculating an output control signal as a function of the sensor glucose data;
delivering medication in response to a delivery control signal;
monitoring the amount of medication delivered;
modifying at least one of the sensor glucose data and the output control signal as a function of the monitored amount of medication delivered, wherein the sensor glucose data becomes modified sensor glucose data and the output control signal becomes a modified output control signal;
performing at least one of;
intercepting the output control signal and substituting the modified output control signal as the delivery control signal without reconfiguring the step of calculating the output control signal; and
intercepting the sensor glucose data and substituting the modified sensor glucose data for calculation of the output control signal without reconfiguring the glucose sensor,wherein the delivery control signal is based on at least one of the modified sensor glucose data and the modified output control signal.
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Accused Products
Abstract
An integrated diabetes management (IDM) system includes a safety layer which, in one configuration has two components, one located between a glucose sensor and a controller and a second component located between a controller and a pump, to monitor various aspects of signals and modify those signals for compatibility and safety purposes. In one application, the safety layer receives output control signals from a controller and modifies those control signals as a function of an actual amount of insulin delivered to the user. The safety layer allows for an increased level of safety in the IDM system and permits development of separate hardware and software upgrades with the safety layer assuring that compatibility between components will continue.
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Citations
9 Claims
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1. A method of diabetes management, comprising:
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sensing glucose level from a glucose sensor and providing sensor glucose data representative of sensed glucose level; calculating an output control signal as a function of the sensor glucose data; delivering medication in response to a delivery control signal; monitoring the amount of medication delivered; modifying at least one of the sensor glucose data and the output control signal as a function of the monitored amount of medication delivered, wherein the sensor glucose data becomes modified sensor glucose data and the output control signal becomes a modified output control signal; performing at least one of; intercepting the output control signal and substituting the modified output control signal as the delivery control signal without reconfiguring the step of calculating the output control signal; and intercepting the sensor glucose data and substituting the modified sensor glucose data for calculation of the output control signal without reconfiguring the glucose sensor, wherein the delivery control signal is based on at least one of the modified sensor glucose data and the modified output control signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification