Advance diagnosis of infusion device operating mode viability
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A61M-001/00
A61M-031/00
A61M-005/168
A61M-005/172
G06F-019/00
출원번호
US-0561128
(2014-12-04)
등록번호
US-9636453
(2017-05-02)
발명자
/ 주소
Monirabbasi, Salman
Lintereur, Louis J.
Yan, Jin
출원인 / 주소
Medtronic MiniMed, Inc.
대리인 / 주소
Lorenz & Kopf, LLP
인용정보
피인용 횟수 :
0인용 특허 :
202
초록▼
Infusion systems, infusion devices, and related operating methods are provided. An exemplary method of operating an infusion device to deliver fluid to a user in accordance with an operating mode involves obtaining operational information pertaining to one or more prior instances of the operating mo
Infusion systems, infusion devices, and related operating methods are provided. An exemplary method of operating an infusion device to deliver fluid to a user in accordance with an operating mode involves obtaining operational information pertaining to one or more prior instances of the operating mode, obtaining status information pertaining to the infusion device, and determining a diagnosis time based at least in part on the operational information. The diagnosis time is prior to a subsequent instance of the operating mode. At the diagnosis time, the method automatically determines the viability of the subsequent instance of the operating mode based at least in part on the status information and automatically generates a notification indicative of a recommended action for the user based at least in part on the viability.
대표청구항▼
1. An infusion device comprising: a user interface;a memory to maintain status information pertaining to the infusion device;a motor operable to deliver fluid to a body of a user, the fluid influencing a physiological condition of the user; anda control system coupled to the motor, the memory, and t
1. An infusion device comprising: a user interface;a memory to maintain status information pertaining to the infusion device;a motor operable to deliver fluid to a body of a user, the fluid influencing a physiological condition of the user; anda control system coupled to the motor, the memory, and the user interface to: operate the motor in a first instance to deliver the fluid in accordance with a closed-loop operating mode to regulate the physiological condition of the user to a target value using one or more control parameters, the one or more control parameters comprising one or more proportional-integral-derivative (PID) gain coefficients;store operational information pertaining to the first instance of the closed-loop operating mode in the memory;determine an expected start time for a subsequent instance of the closed-loop operating mode based at least in part on the operational information;determine an expected duration for the subsequent instance of the closed-loop operating mode based at least in part on the operational information;determine a diagnosis time prior to the expected start time;at the diagnosis time prior to the expected start time, automatically determine viability of entering the subsequent instance of the closed-loop operating mode at the expected start time for the expected duration based at least in part on the status information by performing an algorithmic diagnostic check to determine availability of the closed-loop operating mode at the expected start time in the future for the subsequent instance of the closed-loop operating mode, wherein the algorithmic diagnostic check comprises determining whether the one or more control parameters can be calculated at the expected start time; andautomatically provide, via the user interface, a notification indicative of a recommended action based at least in part on the viability. 2. The infusion device of claim 1, wherein: the status information includes measurement data pertaining to the physiological condition of the user; andthe control system determines the viability by determining whether the one or more control parameters for the closed-loop operating mode can be calculated in the future at the expected start time for the subsequent instance of the closed-loop operating mode based on the measurement data. 3. The infusion device of claim 2, wherein the recommended action comprises obtaining a new reference measurement for the physiological condition of the user. 4. The infusion device of claim 1, wherein the control system determines the viability by determining a physical capability of the infusion device implementing the closed-loop operating mode at the expected start time in the future for the subsequent instance of the closed-loop operating mode for the expected duration of the subsequent instance of the closed-loop operating mode. 5. The infusion device of claim 1, wherein the status information includes glucose measurement data for the user, wherein automatically determining the viability at the diagnosis time comprises the control system determining whether the one or more control parameters for the closed-loop operating mode can be calculated at the expected start time based on the glucose measurement data. 6. The infusion device of claim 5, wherein the notification comprises an indication to obtain a new reference glucose measurement for the user in response to the control system determining a control parameter of the one or more control parameters for the closed-loop operating mode cannot be calculated based on the glucose measurement data. 7. The infusion device of claim 1, wherein determining the diagnosis time comprises: determining the diagnosis time as a buffer time prior to the expected start time. 8. The infusion device of claim 7, the operational information including start times for prior instances of the closed-loop operating mode, wherein the expected start time comprises an average of the start times. 9. The infusion device of claim 8, wherein the buffer time is based at least in part on the closed-loop operating mode of a plurality of operating modes supported by the infusion device. 10. The infusion device of claim 1, wherein: the operational information includes durations for prior instances of the closed-loop operating mode; andthe expected duration comprises an average of the durations. 11. The infusion device of claim 10, wherein: the operational information includes start times for prior instances of the closed-loop operating mode; andthe control system determines the diagnosis time as a buffer time before the expected start time for the subsequent instance of the closed-loop operating mode determined based on the start times. 12. The infusion device of claim 1, wherein the status information includes glucose measurement data for the user, wherein determining the viability of the subsequent instance of the closed-loop operating mode for the expected duration comprises the control system determining whether the one or more control parameters for the closed-loop operating mode calculated based on the glucose measurement data will be valid for an entirety of the expected duration. 13. The infusion device of claim 1, wherein the control system: automatically performs a physical diagnostic check to determine a physical capability of the infusion device implementing the closed-loop operating mode for the expected duration; andautomatically generates the notification when the physical diagnostic check indicates an inability to implement the closed-loop operating mode for the expected duration based on the status information. 14. The infusion device of claim 1, wherein the control system: automatically generates the notification when the algorithmic diagnostic check indicates unavailability of the closed-loop operating mode at the expected start time. 15. An infusion system comprising: a user interface;a sensing arrangement to obtain measurements of a physiological condition in a body of a user; andan infusion device coupled to the user interface and the sensing arrangement, the infusion device being operable to: deliver fluid influencing the physiological condition of the user to the body of the user based at least in part on the measurements in accordance with a closed-loop operating mode, the closed-loop operating mode regulating the physiological condition of the user to a target value using one or more control parameters, the one or more control parameters comprising one or more proportional-integral-derivative (PID) gain coefficients;maintain status information pertaining to operation of the infusion device and operational information pertaining to one or more previous instances of the closed-loop operating mode;determine an expected start time for a subsequent instance of the closed-loop operating mode based at least in part on the operational information;determine an expected duration for the subsequent instance of the closed-loop operating mode based at least in part on the operational information;determine a diagnosis time in advance of the expected start time for the subsequent instance of the closed-loop operating mode based at least in part on the operational information;automatically determine, at the diagnosis time, viability of entering the subsequent instance of the closed-loop operating mode at the expected start time for the expected duration based at least in part on the status information by performing an algorithmic diagnostic check to determine availability of the closed-loop operating mode and whether the one or more control parameters can be calculated at the expected start time in the future for the subsequent instance of the closed-loop operating mode; andautomatically provide, via the user interface, a notification indicative of a recommended action based at least in part on the viability.
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