Drug infusion device with controllable valve

Patent metadata

Field	Value
Publication number	US-9737660-B2
Application number	US-201113217981-A
Country	US
Kind code	B2
Filing date	Aug 25, 2011
Priority date	Aug 25, 2010
Publication date	Aug 22, 2017
Grant date	Aug 22, 2017

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 valve to open and close the first fluid pathway and to open and close the second fluid pathway.

First claim

The invention claimed is:

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;
a pump, the first fluid pathway being fluidly connected to the pump;
a reservoir, the first fluid pathway being fluidly connected to the reservoir;
an inlet port configured to receive the first therapeutic fluid and the second therapeutic fluid, wherein the valve is interposed between the inlet port and the reservoir along the first fluid flow pathway;
a processor configured to actuate the valve to selectively open and close the first fluid pathway to control access to the reservoir, and to selectively open and close the second fluid pathway;
a housing configured to be implanted in a patient, wherein the first fluid pathway, the second fluid pathway, the valve, and the reservoir are housed within the housing; and
a catheter connection port configured to connect to a catheter;
wherein the first fluid pathway extends from the inlet port to the catheter connection port and is fluidly connected to the catheter connection port, and the reservoir is interposed between the valve and the catheter connection port along the first fluid pathway, and
wherein the second fluid pathway extends from the inlet port to the catheter connection port and is directly fluidly connected to the catheter connection port without passing through any reservoir or any pump, and the valve is interposed between the inlet port and the catheter connection port along the second fluid pathway;
wherein the system is configured to deliver:
the first therapeutic fluid, via the first fluid pathway, from the inlet port, through the valve, through the reservoir, through the pump, and out the catheter connection port; and
the second therapeutic fluid, via the second fluid pathway, from the inlet port, through the valve, and out the catheter connection port.

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 , wherein the inlet port is located on a peripheral surface of the housing.

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 a 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 first and second fluid pathways 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 , wherein the reservoir is configured to house the first therapeutic fluid and the pump is housed within the housing.

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 selectively open and close the first fluid pathway and to control actuation of the second valve to selectively open and close the second fluid pathway.

18. The implantable therapeutic fluid delivery system of claim 16 , further comprising a third fluid pathway between the reservoir and the pump, and a second valve connected to the third fluid pathway, 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 1 , wherein the reservoir comprises a first reservoir configured to house the first therapeutic fluid, the system further comprising a second reservoir configured to house a third therapeutic fluid, wherein the first fluid pathway extends from the valve to the first reservoir, and the system further comprises a third fluid pathway that 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 the housing.

Assignees

• Robinson Reginald D
• Robischon Mary E
• Li Bernard Q
• Ali Irfan Z
• Christenson Steven R
• Miesel Keith A
• Medtronic Inc

Inventors

• Robinson Reginald D
• Robischon Mary E
• Li Bernard Q
• Ali Irfan Z
• Christenson Steven R
• Miesel Keith A

Classifications

• A61M5/1684

  by detecting the amount of infusate remaining, e.g. signalling end of infusion · CPC title

• A61M5/14276

  specially adapted for implantation · CPC title

• A61M2205/3569

  sublocal, e.g. between console and disposable · CPC title

• A61M39/223

  Multiway valves · CPC title

• A61M5/16827 Primary

  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 title