Device for the dosed dispensing of a fluidic medium

• US 10,363,361 B2
• Filed: 06/15/2012
• Issued: 07/30/2019
• Est. Priority Date: 06/16/2011
• Status: Active Grant

• Current Assignee: Roche Diabetes Care Inc. (Roche Holding AG)
• Original Assignee: Roche Diabetes Care Inc. (Roche Holding AG)
• Inventors: Arnitz, Theo
• Primary Examiner(s): Zhang, Jenna
• Application Number:
  US13/524,760
• Publication Number:
  US 20130158501A1
• Time in Patent Office: 2,601 Days
• Field of Search: 604 65, 604181, 604187, 604218
• CPC Class Codes: A61M 5/14232 Roller pumps
• CPC Class Codes: A61M 5/1454 spring-actuated, e.g. by a clockwork
• CPC Class Codes: A61M 5/172 electrical or electronic A61M5/16804, A61M5/16831 take precedence

Abstract

A device for the dosed dispensing of a medium (e.g., therapeutic and/or diagnostic agent) for an insulin pump is proposed. The device comprises a transporting and transferring container, a measuring element, and an adjusting element for influencing a dispensing of the medium by way of a connection to an interior space. The transporting and transferring container has a reservoir for receiving the medium. The reservoir is closed by a displaceable element. The displaceable element is movably mounted in relation to the reservoir. A relative positioning of the displaceable element in relation to the reservoir determines the interior space of the reservoir available for receiving the medium. The measuring element senses the relative positioning of the displaceable element in relation to the reservoir. The measuring element and the adjusting element interact so that the dispensing of the medium is influenced by the relative positioning sensed by the measuring element.

Claims

1. A device for the dosed dispensing of a fluidic medium, the device comprising:

a housing;

at least one transporting and transferring container, wherein the at least one transporting and transferring container has at least one reservoir for receiving the fluidic medium, the at least one reservoir has at least one displaceable element, wherein the at least one reservoir is movably mounted in relation to the at least one displaceable element, and wherein a relative positioning of the at least one displaceable element in relation to the at least one reservoir determines an interior space of the at least one reservoir available for receiving the fluidic medium;

at least one energy unit, wherein the at least one energy unit subjects the at least one reservoir to a force so that the fluidic medium is under increased pressure, wherein the energy unit is configured to move the at least one reservoir;

at least one measuring element, wherein the at least one measuring element is configured to sense the relative positioning of the displaceable element in relation to the reservoir and configured to sense a relative positioning of the reservoir in the housing; and

at least one adjusting element for influencing the dispensing of the fluidic medium by way of at least one fluid connection to the interior space;

wherein the at least one measuring element and the at least one adjusting element interact so that the dispensing of the fluidic medium is influenced by both of the relative positionings sensed by the at least one measuring element; and

wherein the at least one reservoir is movably mounted in the housing and wherein the at least one displaceable element is fixedly coupled to the housing;

wherein the at least one reservoir is disposed inside the housing;

wherein the at least one displaceable element is secured at a fixed location relative to the housing;

wherein the at least one energy unit is configured to move the at least one reservoir relative to the housing;

wherein the at least one measuring element is configured to sense the position of the at least one reservoir relative to the housing;

wherein the at least one reservoir includes a rim; and

wherein the at least one measuring element is configured to sense the position of the rim relative to the housing.

2. The device according to claim 1, wherein the fluidic medium is a fluidic therapeutic and/or diagnostic agent for an insulin pump.

3. The device according to claim 1, wherein the at least one measuring element generates at least one measuring signal corresponding to both of the relative positionings.

4. The device according to claim 3, further comprising, at least one controller, wherein the at least one controller controls the at least one adjusting element in an open-loop and/or closed-loop mode by the measuring signal.

5. The device according to claim 1, wherein the at least one displaceable element comprising a stopper, wherein the at least one reservoir is displaceable in relation to the stopper.

6. The device according to claim 5, wherein the at least one measuring element senses displacement of the stopper in the at least one reservoir.

7. The device according to claim 6, wherein the at least one displacement of the stopper in the at least one reservoir is a linear displacement.

8. The device according to claim 1, wherein the at least one measuring element senses at least one position relative to the at least one reservoir of at least one interface between the at least one displaceable element and the fluidic medium.

9. The device according to claim 1, wherein the at least one energy unit is a component of the at least one transporting and transferring container.

10. The device according to claim 1, wherein the at least one adjusting element has at least one valve, wherein the at least one valve influences a flow of the fluidic medium through the at least one fluid connection.

11. The device according to claim 10, wherein the at least one valve interrupts the flow of the fluidic medium through the at least one fluid connection.

12. The device according to claim 10, wherein the at least one valve allows the flow of the fluidic medium through the at least one fluid connection.

13. The device according to claim 10, wherein the at least one valve has at least two closed valve positions and wherein the flow of the fluidic medium is interrupted when the at least one valve is in one of the closed valve positions.

14. The device according to claim 13, wherein the at least two closed valve positions comprises end positions of a movement of at least one valve element of the at least one valve and wherein the at least one valve element is able to move between the at least two valve positions.

15. The device according to claim 10, wherein the at least one valve in a rest position, in which no force is exerted on a valve element of the at least one valve, and in a closed valve position, in which the flow of the fluidic medium through the at least one fluid connection is interrupted.

16. The device according to claim 10, wherein the at least one valve has at least two valve elements, wherein the at least two valve elements are able to be set in at least two static valve positions, and wherein a flow of the fluidic medium through the at least one fluid connection is interrupted in all the static valve positions.

17. The device according to claim 1, wherein the at least one adjusting element has at least one pump.

18. The device according to claim 1, wherein the at least one adjusting element comprises at least two actuators and the at least one fluid connection comprises at least one hose portion, wherein the at least two actuators pinch the at least one hose portion in at least two different pinching regions, wherein a stretchable region of the at least one hose portion is arranged between the at least two actuators, and wherein the at least two actuators comprise an actuator on the an inlet side and an actuator on the an outlet side.

19. The device according to claim 18, wherein the device admits fluidic medium under pressure into the stretchable region between the at least two actuators when the actuator on the inlet side is open and the actuator on the outlet side is closed, wherein the stretchable region is stretched.

20. The device according to claim 18, wherein the device subsequently closes the actuator on the inlet side and open the actuator on the outlet side, wherein the stretchable region is relaxed and part of the fluidic medium flows out of the stretchable region.

21. The device according to claim 1, wherein the device is modular and further comprising, at least one control module with a controller, wherein the at least one transporting and transferring container forms at least one module of the device and is exchangeable.

22. The device according to claim 1, wherein the at least one displaceable element has a septum to allow fluid communication between the interior space and the at least one fluid connection.

23. The device according to claim 1, wherein the device is configured to press the at least one displaceable element against an abutment, such that the at least one displaceable element is pressed into the at least one reservoir.

24. The device according to claim 23, wherein the at least one fluid connection takes place through the abutment.

25. The device according to claim 1, wherein the at least one fluid connection penetrates the at least one displaceable element.

26. The device according to claim 1, wherein the at least one energy unit is configured to subject the at least one reservoir to the force so that the fluidic medium is under the increased pressure independently of the housing of the device.

27. The device according to claim 1, wherein the housing defines a clearance through which the at least one measuring element senses the position of the rim.