Operating an Infusion Pump System

• US 20070167905A1
• Filed: 03/15/2007
• Published: 07/19/2007
• Est. Priority Date: 09/26/2005
• Status: Active Grant

• Current Assignee: Insulet Corporation
• Original Assignee: M2 Medical A/S
• Inventors: Wenger, Mitchell, Kirschen, Todd, Mernoe, Morten, Causey, James, Estes, Mark
• Granted Patent: US 7,922,708 B2
• Time in Patent Office: Days
• US Class Current: 604/65
• CPC Class Codes: A61M 2005/14268 with a reusable and a disposable component
• CPC Class Codes: A61M 2005/14506 mechanically driven, e.g. spring or clockwork
• CPC Class Codes: A61M 2005/14573 with a replaceable reservoir for quick connection/disconnection with a driving system
• CPC Class Codes: A61M 2005/31518 designed to reduce the overall size of an injection device, e.g. using flexible or pivotally connected chain-like rod members
• CPC Class Codes: A61M 5/003 Kits for diabetics
• CPC Class Codes: A61M 5/14244 adapted to be carried by the patient, e.g. portable on the body
• CPC Class Codes: A61M 5/1452 pressurised by means of pistons
• CPC Class Codes: A61M 5/1454 spring-actuated, e.g. by a clockwork
• CPC Class Codes: A61M 5/14566 with a replaceable reservoir for receiving a piston rod of the pump

Abstract

Some embodiments of a medical infusion pump system include a pump device and a removable controller device. When the pump device and the removable controller device are removably attached to one another, the components may provide a portable infusion pump unit to dispense medicine to a user. In particular embodiments, the removable controller device includes a user interface to readily provide information, for example, about the operation of the pump.

Claims

1. A method of administering medicinal fluid to a patient, the method comprising:

(a) receiving user input to program a controller in a control module, the user input being received via a user interface that is disposed in a unitary structure with the control module;

(b) installing a medicinal fluid container in a fluid delivery module that comprises an actuator module;

(c) attaching the fluid delivery module to the control module;

(d) causing the actuator module to dispense a medicinal fluid from the fluid container to a patient in response to an activation signal generated by the controller, wherein the controller generates the activation signal according to the received user input;

(e) separating the fluid delivery module from the control module; and

(f) repeating steps (b)-(e) with the previously used control module, a different medicinal fluid container, and a different fluid delivery module.

2. The method of claim 1, further comprising initiating step (c) before initiating step (b).

3. The method of claim 1, wherein the medicinal fluid container comprises a pre-filled carpule.

4. The method of claim 1, wherein the medicinal fluid container comprises a plunger member slidably disposed within a barrel.

5. The method of claim 1, wherein the medicinal fluid comprises insulin.

6. The method of claim 1, wherein the medicinal fluid container comprises a pre-filled fluid container with substantially rigid side walls.

7. The method of claim 6, wherein operating the actuator module to dispense the medicinal fluid from the fluid container comprises sliding a seal member that is slidably disposed within the side walls.

8. The method of claim 1, wherein the user interface comprises one or more user-actuatable input controls.

9. The method of claim 1, wherein the user interface comprises a display screen.

10. The method of claim 1, wherein the user interface comprises a display screen and one or more user-actuatable input controls.

11. The method of claim 1, wherein the control module comprises a housing that contains the controller and to which the user interface is attached.

12. The method of claim 1, wherein the user interface comprises an input control to receive a user input to initiate dispensing of a bolus of the medicinal fluid from the medicinal fluid container.

13. The method of claim 1, further comprising a step of (g) discarding each of the previously used medicinal fluid containers and each of the previously used fluid delivery modules.

14. The method of claim 1, wherein the controller further generates the activation signal in response to a signal from a user input received via the user interface.

15. The method of claim 1, wherein the controller further generates the activation signal according to a time-based schedule.

16. The method of claim 1, further comprising transferring stored electrical energy from a first energy storage module in the fluid delivery module to a second energy storage in the control module after performing step (c).

17. The method of claim 1, wherein the fluid delivery module is disposable and non-reusable after the separating step (e).

18. A method of administering medicinal fluid to a patient, the method comprising:

(a) obtaining a first fluid delivery module that is a disposable, one-time-use only device, the first fluid delivery module that comprising an electrically powered actuator module;

(b) obtaining a first medicinal fluid container that is separate from the first fluid delivery module;

(c) installing the first medicinal fluid container in the first fluid delivery module;

(d) releasably mounting the first fluid delivery module to a control module so that the control module is in electrical communication with the first fluid delivery module;

(e) causing the actuator module to dispense a medicinal fluid from the first fluid container to a patient in response to an activation signal generated by the controller module;

(f) detaching the first fluid delivery module from the control module; and

(g) repeating steps (c)-(f) with the previously used control module, a second medicinal fluid container different from the first medicinal fluid container, and a second fluid delivery module different from the first fluid delivery module.

19. The method of claim 18, further comprising discarding the first fluid delivery module after step (f).

20. The method of claim 18, further comprising receiving user input to program a controller in the control module, the user input being received via a user interface arranged on with the control module.