Integrated diabetes management system using safety layer
First Claim
1. An integrated diabetes management system, comprising:
- a glucose sensor configured to provide sensor glucose data representative of sensed glucose;
a delivery device configured to deliver medication in response to a delivery control signal;
a communication module;
a controller comprising a controller calculation software module that programs the controller to receive glucose data and to provide an output control signal as a function of the received glucose data; and
a safety layer programmed to receive the output control signal, and to modify the output control signal;
wherein the output control signal would be modified to become a modified output control signal that is provided as the delivery control signal;
wherein the communication module is configured to provide the delivery control signal to the delivery device; and
wherein the safety layer is programmed to intercept the output control signal and substitute the modified control signal to the communication module without any reconfiguration of the communication module or the controller calculation software module.
1 Assignment
0 Petitions
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.
-
Citations
18 Claims
-
1. An integrated diabetes management system, comprising:
-
a glucose sensor configured to provide sensor glucose data representative of sensed glucose; a delivery device configured to deliver medication in response to a delivery control signal; a communication module; a controller comprising a controller calculation software module that programs the controller to receive glucose data and to provide an output control signal as a function of the received glucose data; and a safety layer programmed to receive the output control signal, and to modify the output control signal; wherein the output control signal would be modified to become a modified output control signal that is provided as the delivery control signal; wherein the communication module is configured to provide the delivery control signal to the delivery device; and wherein the safety layer is programmed to intercept the output control signal and substitute the modified control signal to the communication module without any reconfiguration of the communication module or the controller calculation software module. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 14, 17)
-
-
11. An integrated diabetes management system comprising:
-
a glucose sensor configured to provide sensor glucose data representative of sensed glucose; a delivery device configured to deliver medication in response to a delivery control signal; a controller programmed to receive glucose data and to provide an output control signal as a function of the received glucose data; and a safety layer comprising an output safety module operably connected to the medication delivery device, the safety layer being programmed to receive the output control signal, and to modify the output control signal to become a modified output control signal that is provided as the delivery control signal, wherein the modified output control signal is representative of a required medication amount for delivery; wherein the safety layer is programmed to determine a maximum delivery rate of the medication delivery device and is programmed to calculate a delivery schedule as a factor of the maximum delivery rate and the required medication amount, the required medication amount being determined at least partially by the sensed glucose; and wherein the safety layer is programmed to intercept the output control signal and substitute the modified control signal without any reconfiguration of the controller or its programming. - View Dependent Claims (12, 13, 15, 16, 18)
-
Specification