System and method for inflating a balloon catheter and delivering fluid media to a patient

• US 7,313,431 B2
• Filed: 02/11/2004
• Issued: 12/25/2007
• Est. Priority Date: 09/21/1994
• Status: Expired due to Fees

• Current Assignee: Bayer Medical Care Inc. (Bayer AG)
• Original Assignee: Medrad Incorporated (Bayer AG)
• Inventors: Uber, Arthur E. III, Hirschman, Alan D., Welch, Thomas R., Almon-Martin, Rosemary
• Primary Examiner(s): Smith, Ruth S.
• Application Number:
  US10/775,235
• Publication Number:
  US 20040162488A1
• Time in Patent Office: 1,413 Days
• Field of Search: 600/420, 600/431, 600/432, 604 65- 67, 604/82, 604 9601- 9801, 604 9901- 9904, 604/131, 604/151, 604246-247, 604/500, 604/509, 128/DIG.12, 128/DIG.13
• US Class Current: 600/431
• CPC Class Codes: A61B 8/06 Measuring blood flow measuring volume flow in general G01F, e.g. G01F1/66, G01F1/72; measuring speed of fluids in general G01P5/00
• CPC Class Codes: A61B 8/481 involving the use of contrast agent, e.g. microbubbles introduced into the bloodstream analysis of echo signal exploiting properties of a contrast enhancer in devices for short-range imaging with acoustic waves G01S7/52039
• CPC Class Codes: A61M 2205/581 by audible feedback
• CPC Class Codes: A61M 2205/80 voice-operated command
• CPC Class Codes: A61M 5/007 for contrast media
• CPC Class Codes: A61M 5/1723 using feedback of body parameters, e.g. blood-sugar, pressure measurement of body parameters A61B5/00
• CPC Class Codes: G16H 20/17 delivered via infusion or injection
• CPC Class Codes: G16H 30/20 for handling medical images, e.g. DICOM, HL7 or PACS
• CPC Class Codes: G16H 40/63 for local operation
• CPC Class Codes: G16H 50/20 for computer-aided diagnosis, e.g. based on medical expert systems
• CPC Class Codes: Y10S 128/12 Pressure infusion
• CPC Class Codes: Y10S 128/13 Infusion monitoring

Abstract

This invention relates generally to a fluid delivery system comprising a first source of fluid medium a first pressurizing device associated with the first source of fluid medium, a second source of fluid medium, a second pressurizing device associated with the second source of fluid medium, a fluid path operable to deliver the first and second fluid media to a balloon catheter in a patient, and a control unit in communication with the first and second pressurizing devices.

Claims

1. A fluid delivery system, comprising:

a reusable fluid path for delivering fluid to multiple patients, the reusable fluid path comprising;

a first source of fluid medium;

a first pressurizing device associated with the first source of fluid medium;

a second source of fluid medium;

a second pressurizing device associated with the second source of fluid medium;

a per-patient disposable fluid path operable to deliver the first and second fluid media at least to a balloon catheter in a patient, the per-patient disposable fluid path comprising;

a valve;

a tube; and

a per-patient connector; and

a control unit in communication with the first and second pressurizing devices;

wherein the control unit is adapted to actuate the first and second pressurizing devices to deliver the first and second fluid media to a balloon on the balloon catheter; and

wherein the per-patient disposable fluid path is connected to the reusable fluid path before the first and second fluid media are delivered at least to the balloon catheter and is disconnected from the reusable fluid path after the first and second fluid media are delivered at least to the balloon catheter.

2. The fluid delivery system of claim 1 wherein the first fluid medium comprises a contrast medium and the second fluid medium comprises a diluent medium.

3. The fluid delivery system of claim 1 wherein the reusable fluid path further comprises a mixing apparatus.

4. The fluid delivery of claim 1 wherein the reusable fluid path further comprises a pressurization pump.

5. The fluid delivery system of claim 1 wherein the valve of the per-patient disposable fluid path comprises a check valve.

6. The fluid delivery system of claim 1 wherein the first pressurizing device comprises a pump.

7. The fluid delivery system of claim 6 wherein the pump is a peristaltic pump.

8. The fluid delivery system of claim 1 wherein the reusable fluid path further comprises an air detector.

9. The fluid delivery system of claim 1, wherein the reusable fluid path comprises a first portion associated with the first source of fluid medium and a second portion associated with the second source of fluid medium.

10. The fluid delivery system of claim 1 wherein the second pressurizing device comprises a pump.

11. The fluid delivery system of claim 10 wherein the pump is a peristaltic pump.

12. The fluid delivery system of claim 1, further comprising a handheld control mechanism in communication with the control unit to control the first and second pressurizing devices.

13. The fluid delivery system of claim 1 wherein the first and second fluid media at least partially inflate the balloon.

14. The fluid delivery system of claim 1 wherein the first and second pressurizing devices are operable to deliver the first and second fluid media to the balloon catheter at increasing pressure.

15. The fluid delivery system of claim 14 wherein the increasing pressure comprises stepped increasing pressure.

16. A method of delivering fluid media to a balloon catheter in a patient using a fluid delivery system comprising a reusable fluid path comprising a first source of fluid medium, a first pressurizing device associated with the first source of fluid medium, a second source of fluid medium, and a second pressurizing device associated with the second source of fluid medium, and a per-patient disposable fluid path comprising at least a valve, a tube, and a per-patient connector and associated with a balloon catheter disposed in a patient, the method, comprising:

associating the reusable fluid path with the per-patient disposable fluid path such that the first pressurizing device associated with the first source of fluid medium, the second pressurizing device associated with the second source of fluid medium, and the balloon catheter in the patient are connected via the reusable fluid path comprising the valve, the tube, and the per-patient connector;

actuating the first and second pressurizing devices to deliver the first and second fluid media via the fluid path at least to a balloon on the balloon catheter; and

wherein the per-patient disposable fluid path is connected to the reusable fluid path before the first and second fluid media are delivered at least to the balloon catheter and is disconnected from the reusable fluid path after the first and second fluid media are delivered at least to the balloon catheter.

17. The method of claim 16, further comprising:

providing a control unit in communication with the first and second pressurizing devices to control the operation thereof.

18. The method of claim 17, further comprising:

providing a handheld control mechanism in communication with the control unit to control the first and second pressurizing devices.

19. The method of claim 16 wherein the first and second fluid media at least partially inflate the balloon.

20. The method of claim 16 wherein the first and second fluid media are mixed in the fluid path.

21. The method of claim 20 wherein the first fluid medium comprises a contrast medium and the second fluid medium comprises a diluent medium.

22. The method of claim 16 wherein the first and second pressurizing devices are actuated to deliver the first and second fluid media to the balloon catheter at increasing pressure.

23. The method of claim 22 wherein the increasing pressure comprises stepped increasing pressure.

24. A method of delivering fluid media to a balloon catheter in a patient using a fluid delivery system comprising a reusable fluid path comprising a first source of fluid medium, a first pressurizing device associated with the first source of fluid medium, a second source of fluid medium, and a second pressurizing device associated with the second source of fluid medium, and a per-patient disposable fluid path comprising at least a valve, a tube, and a per-patient connector and associated with a balloon catheter disposed in a patient, the method comprising:

associating the reusable fluid path at least with the per-patient disposable fluid path such that the first pressurizing device associated with the first source of fluid medium, the second pressurizing device associated with the second source of fluid medium, and the balloon catheter in a blood vessel of a patient are connected via the reusable fluid path comprising the valve, the tube, and the per-patient connector;

actuating one or both of the first pressurizing device and the second pressurizing device to deliver one or both of the first fluid medium and the second fluid medium to the blood vessel of the patient;

actuating one or both of the first pressurizing device and the second pressurizing devices to deliver one or both of the first and second fluid media via the fluid path to a balloon on the balloon catheter;

inflating the balloon on the balloon catheter; and

wherein the per-patient disposable fluid path is connected to the reusable fluid path before the first and second fluid media are delivered at least to the balloon catheter and is disconnected from the reusable fluid path after the first and second fluid media are delivered at least to the balloon catheter.

25. The method as claimed in claim 24 wherein the first and second pressurizing devices comprise pumps.

26. The method as claimed in claim 25 wherein the pumps comprise peristaltic pumps.

27. The method as claimed in claim 24 further comprising disconnecting the per-patient disposable fluid path from the reusable fluid path.

28. The method as claimed in claim 27 wherein the per-patient disposable fluid path is disconnected from the reusable fluid path by disconnecting the per-patient connector from the reusable fluid path.

29. The method as claimed in claim 24 wherein the valve comprises a check valve.