Error handling in infusion devices with distributed motor control and related operating methods
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A61M-005/145
A61M-005/168
A61M-005/142
G06F-019/00
출원번호
US-0721807
(2015-05-26)
등록번호
US-9999721
(2018-06-19)
발명자
/ 주소
Chow, Steve
Campbell, Alexander S.
Wang, Yongbo
Collins, Thomas W.
Torres, Linda I.
출원인 / 주소
Medtronic MiniMed, Inc.
대리인 / 주소
Lorenz & Kopf, LLP
인용정보
피인용 횟수 :
0인용 특허 :
200
초록▼
Infusion systems, infusion devices, and related operating methods are provided. An exemplary infusion device includes a motor operable to deliver fluid to a body of a user, a first control module to enable input power for the motor and provide a dosage command for operating the motor, and a second c
Infusion systems, infusion devices, and related operating methods are provided. An exemplary infusion device includes a motor operable to deliver fluid to a body of a user, a first control module to enable input power for the motor and provide a dosage command for operating the motor, and a second control module coupled to the first control module to receive the dosage command and operate the motor using at least a portion of the input power based at least in part on the dosage command. One of the first control module and the second control module detects an anomalous condition, and in response, disables the input power to the motor, stores diagnostic information for the anomalous condition in its internal memory, and automatically resets thereafter.
대표청구항▼
1. An infusion device comprising: a motor operable to deliver fluid to a body of a user;a first control module to enable input power for the motor and provide a dosage command for operating the motor; anda second control module coupled to the first control module to receive the dosage command and op
1. An infusion device comprising: a motor operable to deliver fluid to a body of a user;a first control module to enable input power for the motor and provide a dosage command for operating the motor; anda second control module coupled to the first control module to receive the dosage command and operate the motor using at least a portion of the input power based at least in part on the dosage command, wherein one of the first control module and the second control module: detects an anomalous condition in response to an absence of a communication from the other of the first control module and the second control module; andin response to the anomalous condition: disconnects the motor from the input power;stores diagnostic information for the anomalous condition in an internal memory of the one of the first control module and the second control module; andafter disabling the input power and storing the diagnostic information, reinitializes a processing core of the one of the first control module and the second control module to execute boot loader code. 2. The infusion device of claim 1, further comprising a driver module coupled to the motor, wherein: the first control module enables the input power to the driver module; andthe second control module operates the driver module to deliver the portion of the input power to the motor in accordance with the dosage command. 3. The infusion device of claim 1, wherein a first operating system executing on the one of the first control module and the second control module detects the anomalous condition in response to the absence of the communication from a second operating system executing on the other of the first control module and the second control module. 4. The infusion device of claim 1, wherein the other of the first control module and the second control module: detects the anomalous condition in response to an absence of a second communication from the one of the first control module and the second control module; andin response: stores second diagnostic information for the anomalous condition in its internal memory; andresets after storing the second diagnostic information. 5. The infusion device of claim 1, further comprising an output user interface element coupled to the one of the first control module and the second control module, wherein the one of the first control module and the second control module verifies the diagnostic information for the anomalous condition is stored in the internal memory prior to reinitializing the processing core and generates a notification via the output user interface element in response to a failure to store the diagnostic information. 6. The infusion device of claim 1, further comprising an output user interface element coupled to the one of the first control module and the second control module, the processing core of the one of the first control module and the second control module executing the boot loader code for a first boot loader, wherein the one of the first control module and the second control module generates a notification via the output user interface element in response to a failure to communicate with a second boot loader executed by the other of the first control module and the second control module. 7. The infusion device of claim 1, the second control module converting the dosage command to one or more motor commands for providing the input power to the motor, wherein the anomalous condition comprises an absence of a heartbeat message of one or more heartbeat messages communicated between the first control module and the second control module. 8. The infusion device of claim 7, wherein in response to the anomalous condition: the other of the first control module and the second control module stores second diagnostic information for the anomalous condition from its processing core to its internal memory; andafter storing the second diagnostic information, the other of the first control module and the second control module loads second boot loader code from its internal memory to its processing core. 9. The infusion device of claim 8, wherein the anomalous condition results in the other of the first control module and the second control module failing to communicate the heartbeat message. 10. The infusion device of claim 7, further comprising an output user interface element, wherein: the one of the first control module and the second control module verifies the storing of the diagnostic information prior to loading the boot loader code; andthe one of the first control module and the second control module generates a notification via the output user interface element in response to a failure to store the diagnostic information. 11. The infusion device of claim 7, further comprising an output user interface element, wherein the one of the first control module and the second control module generates a notification via the output user interface element when a reset limit has been met. 12. An infusion device comprising: a motor operable to deliver fluid to a body of a user;a first control module to enable input power for the motor and provide a dosage command for operating the motor; anda second control module coupled to the first control module to receive the dosage command and operate the motor using at least a portion of the input power based at least in part on the dosage command, wherein:the first control module and the second control module are cooperatively configured to: initialize each of the first control module and the second control module to a boot loader stage;in response to a first handshake between the first control module and the second control module while in the boot loader stage, load a respective operating system for execution by each of the first control module and the second control module; andin response to a second handshake between the respective operating systems executing on the first control module and the second control module, load respective application code for execution by each of the first control module and the second control module from external memory; andone of the first control module and the second control module: detects an anomalous condition in response to an absence of a communication from the other of the first control module and the second control module; andin response to the anomalous condition: disables the input power to the motor;stores diagnostic information for the anomalous condition in its internal memory; andresets after disabling the input power and storing the diagnostic information. 13. The infusion device of claim 12, wherein: the first control module detects the anomalous condition after loading first application code for execution by the first control module from the external memory; andin response to the anomalous condition the first control module disables the input power to the motor, stores the diagnostic information for the anomalous condition from its processing core to its internal memory, and resets to the boot loader stage after storing the diagnostic information. 14. The infusion device of claim 13, wherein: the second control module identifies the anomalous condition in response to the first control module detecting the anomalous condition; andin response to identifying the anomalous condition, the second control module stores second diagnostic information for the anomalous condition from its processing core to its internal memory and resets to the boot loader stage after storing the second diagnostic information. 15. The infusion device of claim 12, wherein the one of the first control module and the second control module determines whether a reset limit has been met at the boot loader stage prior to the first handshake. 16. The infusion device of claim 15, wherein the respective operating system executing on the other of the first control module and the second control module determines whether the reset limit has been met prior to the second handshake. 17. The infusion device of claim 12, wherein loading respective application code for execution by each of the first control module and the second control module from the external memory comprises: executing, by the first control module, a delivery control application for determining a dosage command corresponding to an amount of fluid for delivery to a user associated with the infusion device; andexecuting, by the second control module, a motor control application for converting the dosage command to one or more motor commands for operating the motor to deliver the amount of fluid. 18. The infusion device of claim 17, wherein the first control module detects the anomalous condition after providing the dosage command to the second control module. 19. The infusion device of claim 17, wherein the second control module detects the anomalous condition after receiving the dosage command from the first control module.
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