SYSTEMS AND METHODS FOR FLUID INFUSION DEVICE WITH AUTOMATIC RESERVOIR FILL

• US 20160144108A1
• Filed: 11/26/2014
• Published: 05/26/2016
• Est. Priority Date: 11/26/2014
• Status: Abandoned Application

• Current Assignee: Medtronic Minimed Incorporated (Medtronic Plc)
• Original Assignee: Medtronic Minimed Incorporated (Medtronic Plc)
• Inventors: Pananen, Jacob E.
• Application Number:
  US14/554,626
• Publication Number:
  US 20160144108A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: A61M 2205/502 User interfaces, e.g. screens or keyboards
• CPC Class Codes: A61M 2205/82 Internal energy supply devices
• CPC Class Codes: A61M 5/14216 Reciprocating piston type
• CPC Class Codes: A61M 5/16809 by repeated filling and emptying of an intermediate volume pressure infusion using positive displacement pumps A61M5/142

Abstract

Systems and methods for a fluid reservoir associated with a fluid infusion device, which is automatically filled are provided. The fluid infusion device includes a source of input and a fluid reservoir system including the fluid reservoir having a barrel and a stopper disposed within the barrel. The fluid infusion device also includes a drive system coupled to the stopper of the fluid reservoir system and a control module that outputs one or more control signals to the drive system to move the stopper to fill the barrel of the fluid reservoir with a fluid based on the input.

Claims

1. A fluid infusion device for automatically filling a fluid reservoir associated with the fluid infusion device, the fluid infusion device comprising:

a source of input;

a fluid reservoir system including the fluid reservoir having a barrel and a stopper disposed within the barrel;

a drive system coupled to the stopper of the fluid reservoir system; and

a control module that outputs one or more control signals to the drive system to move the stopper to fill the barrel of the fluid reservoir with a fluid based on the input.

2. The fluid infusion device of claim 1, wherein the fluid infusion device includes a housing, and the fluid reservoir system, the drive system and the control module are coupled to the housing.

3. The fluid infusion device of claim 2, wherein the source of input is at least one of a display associated with the fluid infusion device and a user input device coupled to the housing.

4. The fluid infusion device of claim 1, wherein the drive system includes at least a motor having an output shaft and a slide, the slide coupled to the output shaft of the motor such that the slide translates within the housing and the slide is coupled to the stopper.

5. The fluid infusion device of claim 4, wherein the control module outputs one or more control signals to the motor to translate the slide based on the input.

6. The fluid infusion device of claim 5, wherein the control module outputs the one or more control signals to the motor to translate the slide towards the fluid reservoir to pressurize the fluid reservoir.

7. The fluid infusion device of claim 5, wherein the control module outputs the one or more control signals to the motor to translate the slide away from the fluid reservoir to draw the fluid from a fluid source into the fluid reservoir to fill the fluid reservoir.

8. A fluid infusion device for automatically filling a fluid reservoir associated with the fluid infusion device, the fluid infusion device comprising:

a source of input;

a housing;

a fluid reservoir system disposed within the housing and including the fluid reservoir having a barrel and a stopper disposed within the barrel;

a drive system disposed within the housing and having a motor coupled to a slide, the slide coupled to the stopper of the fluid reservoir system and movable via the motor; and

a control module that outputs one or more control signals to the motor to move the stopper relative to the barrel to fill the barrel of the fluid reservoir with a fluid based on the input.

9. The fluid infusion device of claim 8, further comprising a source of the fluid coupled to the barrel, wherein the movement of the slide relative to the barrel draws the fluid from the source of the fluid into the barrel to fill the barrel.

10. The fluid infusion device of claim 8, wherein the source of input is at least one of a display associated with the fluid infusion device and a user input device coupled to the housing.

11. The fluid infusion device of claim 8, wherein the fluid reservoir has a proximal end and a distal end, and the control module outputs the one or more control signals to the motor to move the stopper towards the proximal end to pressurize the fluid reservoir.

12. The fluid infusion device of claim 8, wherein the control module outputs the one or more control signals to the motor to move the stopper towards the distal end to draw the fluid from a fluid source into the fluid reservoir.

13. The fluid infusion device of claim 8, wherein the slide includes at least one coupling feature to couple the stopper to the slide.

14. The fluid infusion device of claim 13, wherein the slide includes a first end and a second end, the first end having a projection and the second end coupled to the motor, with the projection including the at least one coupling feature and the at least one coupling feature is a groove defined about a periphery of the projection.

15. The fluid infusion device of claim 13, wherein the slide includes a first end and a second end, the second end coupled to the motor and the first end including the at least one coupling feature, and the at least one coupling feature is a plurality of threads.

16. The fluid infusion device of claim 8, wherein the fluid infusion device is an insulin infusion device.

17. A method for automatically filling a fluid reservoir associated with a fluid infusion device, the method comprising:

receiving an input to request automatic filling of the fluid reservoir;

outputting one or more control signals to a motor of a drive system of the fluid infusion device to advance a stopper in the fluid reservoir and outputting one or more control signals to the motor of the drive system to retract the stopper within the fluid reservoir based on the receiving the input; and

repeating the outputting of the control signals until the fluid reservoir is filled with the fluid.

18. The method of claim 17, further comprising:

providing a slide coupled to the motor and to the stopper;

determining a position of the slide relative to the fluid reservoir; and

outputting one or more control signals to the motor to move the slide and the stopper based on the determination.

19. The method of claim 17, further comprising:

receiving input from an input device coupled to the fluid infusion device.

20. The method of claim 17, further comprising:

providing a slide coupled to the motor and to the stopper,

wherein the outputting the one or more control signals to the motor moves the slide and the stopper.