DRUG INFUSION DEVICE WITH CONTROLLABLE VALVE

• US 20120053514A1
• Filed: 08/25/2011
• Published: 03/01/2012
• Est. Priority Date: 08/25/2010
• Status: Active Grant

• Current Assignee: Medtronic Incorporated (Medtronic Plc)
• Original Assignee: Medtronic Incorporated (Medtronic Plc)
• Inventors: Robinson, Reginald D., Li, Bernard Q., Ali, Irfan Z., Christenson, Steven R., Miesel, Keith A., Robischon, Mary E.
• Granted Patent: US 9,737,660 B2
• Time in Patent Office: Days
• US Class Current: 604/65
• CPC Class Codes: A61M 2205/3523 using telemetric means
• CPC Class Codes: A61M 2205/3569 sublocal, e.g. between console and disposable
• CPC Class Codes: A61M 2210/1003 Spinal column
• CPC Class Codes: A61M 39/223 Multiway valves
• CPC Class Codes: A61M 5/14276 specially adapted for implantation
• CPC Class Codes: A61M 5/16827 controlling delivery of multiple fluids, e.g. sequencing, mixing or via separate flow-paths infusion of multiple fluids without using a controller A61M5/1407
• CPC Class Codes: A61M 5/1684 by detecting the amount of infusate remaining, e.g. signalling end of infusion

Abstract

A therapeutic fluid delivery device that includes at least one controllable valve is generally described. In one example, an implantable therapeutic fluid delivery system includes a first fluid pathway configured to convey a first therapeutic fluid and a second fluid pathway configured to convey a second therapeutic fluid, the second fluid pathway being separate from the first fluid pathway. The therapeutic fluid delivery system includes a valve connected to the first fluid pathway and the second fluid pathway, and a processor configured to control actuation of the value to open and close the first fluid pathway and to open and close the second fluid pathway.

Claims

1. An implantable therapeutic fluid delivery system comprising:

a first fluid pathway configured to convey a first therapeutic fluid;

a second fluid pathway configured to convey a second therapeutic fluid, the second fluid pathway being separate from the first fluid pathway;

a valve connected to the first fluid pathway and the second fluid pathway; and

a processor configured to actuate the valve to open and close the first fluid pathway and to open and close the second fluid pathway.

2. The implantable therapeutic fluid delivery system of claim 1, wherein the valve comprises a rotary valve.

3. The implantable therapeutic fluid delivery system of claim 1, wherein the valve comprises a first valve connected to the first fluid pathway and a second valve connected to the second fluid pathway, wherein the processor is configured to control actuation of the first valve to open and close the first fluid pathway and to control actuation of the second valve to open and close the second fluid pathway.

4. The implantable therapeutic fluid delivery system of claim 1, further comprising:

an inlet port configured to receive the therapeutic fluid,

wherein the valve is interposed between the first fluid pathway and the inlet port and the second fluid pathway and the inlet port.

5. The implantable therapeutic fluid delivery system of claim 4, wherein the valve comprises a first valve connected to the first fluid pathway and a second valve connected to the second fluid pathway, and wherein the processor is configured to control actuation of the first valve to open and close the first fluid pathway and to control actuation of the second valve to open and close the second fluid pathway.

6. The implantable therapeutic fluid delivery system of claim 4, further comprising a sensor configured to detect entry of a needle into an aperture defined by the inlet port.

7. The implantable therapeutic fluid delivery system of claim 6, wherein the sensor comprises at least one of a flow sensor, plunger valve, pressure sensor, acoustic sensor, optical sensor, switch-based sensor, and inductive sensor.

8. The implantable therapeutic fluid delivery system of claim 6, wherein the processor is configured to control actuation of the valve based at least upon a signal provided by the sensor.

9. The implantable therapeutic fluid delivery system of claim 6, further comprising a memory configured to store an indication when the sensor detects entry of the needle.

10. The implantable therapeutic fluid delivery system of claim 4, further comprising a programmer configured to receive user input, wherein the processor is configured to control actuation of the valve based at least upon the user input.

11. The implantable therapeutic fluid delivery system of claim 10, wherein the processor is configured to cause the programmer to display a fluid pathway indication when at least one of the first fluid pathway or second fluid pathway is open.

12. The implantable therapeutic fluid delivery system of claim 11, wherein the programmer comprises the processor.

13. The implantable therapeutic fluid delivery system of claim 10, further comprising a sensor configured to detect entry of a needle into an aperture defined by the inlet port, wherein the processor is configured to control actuation of the valve based at least upon the user input and the signal provided by the sensor.

14. The implantable therapeutic fluid delivery system of claim 13, wherein the processor is configured to control actuation of the valve to close the valve if the sensor detects entry of the needle into the aperture defined by the inlet port and the user input did not indicate that the needle would be entering the aperture defined by the inlet port.

15. The implantable therapeutic fluid delivery system of claim 14, wherein the processor is configured to at least one of cause the programmer to display an indication that the sensor detected entry of the needle into the aperture, issue an audible, visual, or tactile alarm, or store an indication that the sensor detected entry of the needle into the aperture in a memory.

16. The implantable therapeutic fluid delivery system of claim 4, further comprising:

a reservoir configured to house at least one of the first therapeutic fluid or second therapeutic fluid; and

a catheter connection port configured to connect to a catheter for delivery of at least one of the first therapeutic fluid or second therapeutic fluid into a body of a patient,

wherein the first fluid pathway extends from the valve to the reservoir, and the second fluid pathway extends from the valve to the catheter connection port without passing through a pump of the therapeutic fluid delivery system.

17. The implantable therapeutic fluid delivery system of claim 16, wherein the valve comprises a first valve connected to the first fluid pathway and a second valve connected to the second fluid pathway, and wherein the processor is configured to control actuation of the first valve to open and close the first fluid pathway and to control actuation of the second valve to open and close the second fluid pathway.

18. The implantable therapeutic fluid delivery system of claim 17, wherein the second valve is configured to control fluid communication between the reservoir and the pump.

19. The implantable therapeutic fluid delivery system of claim 18, further comprising a third valve interposed between the pump and the catheter connection port, wherein the processor is configured to control actuation of the second valve and the third valve when delivering therapeutic fluid from the reservoir to the catheter connection port.

20. The implantable therapeutic fluid delivery system of claim 4, further comprising a first reservoir configured to house the first therapeutic fluid and a second reservoir configured to house the second therapeutic fluid, and wherein the first fluid pathway extends from the valve to the first reservoir, and the second fluid pathway extends from the valve to the second reservoir.

21. The implantable therapeutic fluid delivery system of claim 20, wherein the first reservoir and the second reservoir are disposed side-by-side within a housing of the system.

22. The implantable therapeutic fluid delivery system of claim 20, wherein the first reservoir and the second reservoir are stacked within a housing of the system.

23. The implantable therapeutic fluid delivery system of claim 20, wherein the valve comprises a first valve connected to the first fluid pathway and a second valve connected to the second fluid pathway, wherein the processor is configured to control actuation of the first valve to open and close the first fluid pathway and to control actuation of the second valve to open and close the second fluid pathway.

24. The implantable therapeutic fluid delivery system of claim 23, wherein the first valve is configured to control fluid communication between the first reservoir and a pump of the therapeutic fluid delivery system, and the second valve is configured to control fluid communication between the second reservoir and the pump.

25. The implantable therapeutic fluid delivery system of claim 24, further comprising a third valve and a catheter connection port, wherein the third valve is interposed between the pump and catheter connection port, and the processor is configured to control actuation of the third valve and at least one of the first valve or second valve when delivering therapeutic fluid from at least one of the first reservoir or second reservoir to the catheter connection port.

26. The implantable therapeutic fluid delivery system of claim 1, further comprising:

a sensor configured to detect a fluid characteristic,

wherein the valve is interposed between the first fluid pathway and the sensor and the second fluid pathway and the sensor.

27. The implantable therapeutic fluid delivery system of claim 1, further comprising:

one or more additional fluid pathways configured to convey one or more additional therapeutic fluids,

wherein the valve is connected to the one or more additional fluid pathways and wherein the processor is configured to actuate the valve to open and close each of the one or more additional fluid pathways.

28. The implantable therapeutic fluid delivery system of claim 27, further comprising a plurality of reservoirs configured to house the first therapeutic fluid, the second therapeutic fluid, and the one or more additional therapeutic fluids, and wherein the first fluid pathway extends from the valve to a first one of the plurality of reservoirs, the second fluid pathway extends from the valve to a second one of the plurality of reservoirs, and the one or more additional fluid pathways each extend from the valve to an additional one of the plurality of reservoirs.

29. The implantable therapeutic fluid delivery system of claim 20, wherein the valve comprises a plurality of valves connected to the first fluid pathway, the second fluid pathway, and the one or more additional fluid pathways, and wherein the processor is configured to control actuation of each of the plurality of valves to open and close the first fluid pathway, the second fluid pathway, and each of the one or more additional fluid pathways, respectively.

30. A method comprising:

actuating a valve within an implantable fluid delivery device to open and close at least one of a first fluid pathway and a second fluid pathway,

wherein the first fluid pathway is configured to convey a first therapeutic fluid, the second fluid pathway is configured to convey a second therapeutic fluid, the second fluid pathway is separate from the first fluid pathway, and the valve is connected to the first fluid pathway and the second fluid pathway.

31. The method of claim 30, wherein the valve is interposed between the first fluid pathway and an inlet port configured to receive the therapeutic fluid and the second fluid pathway and the inlet port.

32. The method of claim 31, wherein the valve comprises a first valve connected to the first fluid pathway and a second valve connected to the second fluid pathway, and wherein actuating the valve comprises actuating the first valve to open and close the first fluid pathway and actuating the second valve to open and close the second fluid pathway.

33. The method of claim 31, further comprising sensing entry of a needle into an aperture defined by the inlet port.

34. The method of claim 33, further comprising storing in a memory an indication when entry of the needle into the aperture defined by the inlet port is sensed.

35. The method of claim 33, further comprising receiving user input, wherein actuating the valve comprises actuating the valve based at least upon the received user input.

36. The method of claim 35, further comprising displaying a fluid pathway indication when at least one of the first fluid pathway or second fluid pathway is open.

37. The method of claim 35, further comprising sensing entry of a needle into an aperture defined by the inlet port, wherein actuating the valve comprises actuating the valve based at least upon a sensed entry of the needle into the aperture defined by the inlet port.

38. The method of claim 37, wherein actuating the valve comprises actuating the valve closed if entry of the needle into the aperture defined by the inlet port is sensed and the received user input did not indicate that the needle would be entering the aperture defined by the inlet port.

39. The method of claim 38, further comprising at least one of displaying an indication that entry of the needle into the aperture was sensed, issuing an audible, visual, or tactile alarm in response to sensing entry of the needle into the aperture defined by the inlet port and receiving user input that does not indicate that the needle would be entering the aperture defined by the inlet port, or storing an indication that entry of the needle into the aperture was sensed in a memory.

40. The method of claim 33, wherein the first fluid pathway extends from the valve to a reservoir configured to house the therapeutic fluid, and the second fluid pathway extends from the valve to a catheter connection port without passing through a pump.

41. The method of claim 40, wherein the valve comprises a first valve connected to the first fluid pathway and a second valve connected to the second fluid pathway, and wherein actuating the valve comprises actuating the first valve to open and close the first fluid pathway and actuating the second valve to open and close the second fluid pathway.

42. The method of claim 41, wherein the second valve is configured to control fluid communication between the reservoir and the pump.

43. The method of 42, further comprising actuating the second valve and a third valve interposed between the pump and the catheter connection port to delivery therapeutic fluid from the reservoir to the catheter connection port.

44. The method of 33, wherein the first fluid pathway extends from the valve to a first reservoir configured to house a first therapeutic fluid, and the second fluid pathway extends from the valve to a second reservoir configured to house a second therapeutic fluid.

45. The method of 44, wherein the valve comprises a first valve connected to the first fluid pathway and a second valve connected to the second fluid pathway, and wherein actuating the valve comprises actuating the first valve to open and close the first fluid pathway and actuating the second valve to open and close the second fluid pathway.

46. The method of 45, wherein the first valve is configured to control fluid communication between the first reservoir and a pump of the therapeutic fluid delivery system, and the second valve is configured to control fluid communication between the second reservoir and the pump.

47. The method of 46, further comprising actuating a third valve interposed between the pump and a catheter connection port and at least one of the first valve or second valve to deliver therapeutic fluid from at least one of the first reservoir or second reservoir to the catheter connection port.

48. A fluid delivery system comprising:

a valve within an implantable fluid delivery device connected to a first fluid pathway and a second fluid pathway, and

means for actuating the valve to open and close at least one of the first fluid pathway and the second fluid pathway,

wherein the first fluid pathway is configured to convey a first therapeutic fluid, the second fluid pathway is configured to convey a second therapeutic fluid, and the second fluid pathway is separate from the first fluid pathway.