PREVENTING INADVERTENT CHANGES IN AMBULATORY MEDICAL DEVICES

• US 20170300206A1
• Filed: 05/11/2017
• Published: 10/19/2017
• Est. Priority Date: 06/07/2012
• Status: Active Grant

• Current Assignee: Tandem Diabetes Care Incorporated
• Original Assignee: Tandem Diabetes Care Incorporated
• Inventors: Rosinko, Michael, Kruse, Geoff, Ulrich, Thomas, Verhoef, Erik
• Granted Patent: US 10,430,043 B2
• Time in Patent Office: Days
• CPC Class Codes: A61M 5/14 Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
• CPC Class Codes: G06F 3/0484 for the control of specific functions or operations, e.g. selecting or manipulating an object, an image or a displayed text element, setting a parameter value or selecting a range
• CPC Class Codes: G16H 20/17 delivered via infusion or injection
• CPC Class Codes: G16H 40/63 for local operation

Abstract

A portable medical device is operated in an active mode in which the device receives a user input at an input interface and provides the received user input to a processor of the device. The active mode is terminated and the device is operated in a safe mode, in which the received user input is not provided to the processor and/or one or more device function is disabled, in response to determining that the received user input was received in an out of bounds region of the input interface. The safe mode is terminated in response to receiving a predetermined user input comprising an activation input.

Claims

1. An ambulatory infusion system, comprising:

a housing;

a delivery mechanism at least partially contained within the housing and adapted to facilitate delivery of fluid to a user;

a user interface comprising a touchscreen, the touchscreen adapted to display a plurality of input screens and receive touch input from a user on the input screens;

a memory adapted to store operating parameters and settings relating to use of the delivery mechanism; and

a processor disposed in the housing and configured to control operation of the system in an active mode and a safe mode, wherein in the safe mode the processor disables at least one system function that is active in the active mode, the processor further configured to;

define at least one out of bounds region on at least one of the input screens and associate the out of bounds regions with the corresponding input screen in the memory;

identify a touch input on the touchscreen on the at least one of the input screens that is in at least one of the out of bounds regions associated with the input screen while the operation of the pump is in the active mode;

suspend operation of the system in the active mode and place operation of the system in the safe mode in response to the out of bounds touch input.

2. The ambulatory infusion pump of claim 1, wherein the processor is further configured to terminate the safe mode and return to the active mode upon identifying a touch input at the touchscreen as a predetermined activation input.

3. The ambulatory infusion pump of claim 2, wherein the predetermined activation input comprises selection of a wake display icon on the user interface.

4. The ambulatory infusion pump of claim 2, wherein the predetermined activation input comprises a predetermined sequence of selected icons on the user interface.

6. The ambulatory infusion pump of claim 1, wherein the processor is further configured to display an unlock screen on the touchscreen after safe mode is entered.

7. The ambulatory infusion pump of claim 1, wherein the processor defines at least one out of bounds region for a plurality of input screens, each out of bounds region customized for the specific input screen.

8. The ambulatory infusion pump of claim 1, wherein the at least one function that is disabled in the safe mode is operation of the delivery mechanism.

9. The ambulatory infusion pump of claim 1, wherein the at least one function that is disabled in the safe mode is alteration of the operating parameters and setting stored in the memory.

10. The ambulatory infusion pump of claim 1, wherein the touchscreen is disposed on the housing.

11. The ambulatory infusion pump of claim 1, wherein the touchscreen is disposed on a separate device remote from the housing and the processor is adapted to receive information related to the touch input on the touchscreen wirelessly from the separate device.

5. The ambulatory infusion pump of claim 5, wherein the predetermined sequence comprises a series of distinct touch inputs each separated by no more than a maximum predetermined amount of time.

12. An ambulatory infusion pump, comprising:

a processor that controls operation of the pump in a plurality of operating modes that include an active mode in which multiple pump components are operated and a safe mode in which at least one pump component is deactivated and not operated;

an input interface through which the processor receives user input; and

wherein the processor terminates the active mode and operates the pump in the safe mode in response to determining that a received user input was received in an out of bounds region of the input interface.

13. The ambulatory infusion pump of claim 12, wherein the processor terminates the safe mode in response to receiving an activation user input through the input interface comprising a predetermined activation input.

14. The ambulatory infusion pump of claim 13, wherein the activation input comprises selection of a wake display icon of the input interface.

15. The ambulatory infusion pump of claim 13, wherein the activation input comprises a predetermined sequence of selected icons on the input interface.

16. The ambulatory infusion pump of claim 15, wherein the predetermined sequence comprises a series of distinct inputs each separated by no more than a maximum predetermined amount of time.

17. The ambulatory infusion pump of claim 13, wherein the processor resumes operating the device in the active mode in response to terminating the safe mode.

18. The ambulatory infusion pump of claim 12, wherein the processor is further configured to display an unlock screen on the input interface after safe mode is entered.

19. The ambulatory infusion pump of claim 12, wherein the at least one pump component that is deactivated in the safe mode is a delivery mechanism for delivering fluid to a user.

20. The ambulatory infusion pump of claim 12, wherein the at least one pump component that is deactivated in the safe mode is a memory for storing alteration of operating parameters and setting.