System and method for reduction of inadvertent activation of medical device during manipulation

• US 9,335,910 B2
• Filed: 03/13/2013
• Issued: 05/10/2016
• Est. Priority Date: 04/23/2012
• Status: Active Grant

• Current Assignee: Tandem Diabetes Care Incorporated
• Original Assignee: Tandem Diabetes Care Incorporated
• Inventors: Farnan, Jason, Bureson, Brian
• Primary Examiner(s): Salomon, Phenuel
• Assistant Examiner(s): LUU, DAVID V
• Application Number:
  US13/801,274
• Publication Number:
  US 20130283196A1
• Time in Patent Office: 1,154 Days
• Field of Search: 715/771
• US Class Current: 1/1
• CPC Class Codes: A61M 2005/14208 with a programmable infusion control system, characterised by the infusion program
• CPC Class Codes: A61M 2205/12 with interchangeable cassettes forming partially or totally the fluid circuit
• CPC Class Codes: A61M 2205/505 Touch-screens; Virtual keyboard or keypads; Virtual buttons; Soft keys; Mouse touches
• CPC Class Codes: A61M 5/14244 adapted to be carried by the patient, e.g. portable on the body
• CPC Class Codes: G06F 3/04817 using icons graphical or visual programming using iconic symbols G06F8/34
• CPC Class Codes: G06F 3/0482 Interaction with lists of selectable items, e.g. menus
• 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: G06F 3/04847 Interaction techniques to control parameter settings, e.g. interaction with sliders or dials
• CPC Class Codes: G06F 3/04883 for inputting data by handwriting, e.g. gesture or text
• CPC Class Codes: G16H 20/17 delivered via infusion or injection
• CPC Class Codes: G16H 40/63 for local operation

Abstract

Inadvertent activation of a portable medical device such as an ambulatory infusion pump can be reduced by locking a touchscreen of the device when it is indicated that an uninterrupted operation is to be performed. When a processor receives a device operation input from the touchscreen that indicates an uninterrupted operation is to be performed on the portable device, the touchscreen is automatically locked such that touch input at the touchscreen is not processed by the processor to navigate between or among menu screens or set pump parameters. Following completion of the uninterrupted operation, the touchscreen can be unlocked. In one embodiment, the touchscreen can be unlocked by selection of an unlock icon on the touchscreen.

Claims

1. An ambulatory infusion pump, 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 disposed on a surface of the housing; and

a processor disposed in the housing and configured to generate menu screens for display on the touchscreen and to receive and process touch input from the touchscreen for navigation between or among the menu screens and for setting pump parameters, the processor further configured to;

receive touch input through the touchscreen indicating that a specific task is to be performed on the pump, the specific task being an operation in which the user directly modifies a physical state of the pump and being selected from the group consisting of replacement of an infusion cartridge, filling the infusion cartridge with fluid and filling infusion tubing with fluid;

automatically lock the touchscreen during the operation in response to the indication of the specific task to be performed such that touch input received at the touchscreen is not processed by the processor to navigate between or among menu screens or set pump parameters; and

unlock the touchscreen following completion of the operation.

2. The ambulatory infusion pump of claim 1, wherein the processor is configured to unlock the touchscreen following completion of the operation only upon receiving a predefined unlock touch input through the touchscreen.

3. The ambulatory infusion pump of claim 2, wherein the predefined unlock touch input is selection of an unlock icon.

4. The ambulatory infusion pump of claim 1, further comprising an infusion cartridge selectively coupleable to the housing, the infusion cartridge including a reservoir containing the fluid and an outlet adapted to be coupled to infusion tubing such that the delivery mechanism can deliver fluid from the reservoir, out the outlet and through the infusion tubing to a user.

5. The ambulatory infusion pump of claim 2, wherein following receipt of the predefined unlock touch input through the touchscreen, the processor is adapted to display an unlock confirmation screen and the processor does not navigate to a subsequent menu screen until a confirmation touch input is received on the unlock confirmation screen.

6. An ambulatory infusion system, comprising:

an infusion cartridge, the infusion cartridge including a reservoir for containing a fluid and an outlet adapted to be coupled to infusion tubing;

a pump device configured to selectively receive the infusion cartridge and cooperate with the infusion cartridge to deliver fluid from the reservoir, out the outlet and through infusion tubing to a user;

a user interface comprising a touchscreen disposed on a surface of the pump device; and

a processor located in one of the infusion cartridge and the pump and configured to generate menu screens for display on the touchscreen and to receive and process touch input from the touchscreen for navigation between or among the menu screens and for setting pump parameters, the processor further configured to;

receive touch input through the touchscreen indicating that a specific task is to be performed on the pump, the specific task selected from the group consisting of replacement of an infusion cartridge, filling the infusion cartridge with fluid and filling infusion tubing with fluid;

determine that the specific task is an uninterrupted operation during which the user directly modifies a physical state of the pump such that a failsafe mechanism should be employed;

automatically lock the touchscreen as the failsafe mechanism during the uninterrupted operation in response to the touch input indicating that the specific task is to be performed such that touch input received at the touchscreen is not processed by the processor to navigate between or among menu screens or set pump parameters; and

unlock the touchscreen following completion of the uninterrupted operation.

7. The ambulatory infusion system of claim 6, wherein the processor is configured to unlock the touchscreen following completion of the uninterrupted operation only upon receiving a predefined unlock touch input through the touchscreen.

8. The ambulatory infusion system of claim 7, wherein the predefined unlock touch input is selection of an unlock icon.

9. The ambulatory infusion system of claim 8, wherein following receipt of the predefined unlock touch input through the touchscreen, the processor is adapted to display an unlock confirmation screen and the processor does not navigate to a subsequent menu screen until a confirmation touch input is received on the unlock confirmation screen.