Power injection catheters and method of injecting

• US 20060149214A1
• Filed: 12/29/2005
• Published: 07/06/2006
• Est. Priority Date: 01/04/2005
• Status: Active Grant

• Current Assignee: C.R. Bard, Inc. (Becton, Dickinson & Co)
• Original Assignee: C.R. Bard, Inc. (Becton, Dickinson & Co)
• Inventors: Diamond, Jordan P., Breiter, Catherine C.
• Granted Patent: US 9,408,964 B2
• Time in Patent Office: Days
• US Class Current: 604/500
• CPC Class Codes: A61M 2205/3355 Controlling downstream pump pressure
• CPC Class Codes: A61M 25/0097 characterised by the hub connectors A61M39/10
• CPC Class Codes: A61M 5/007 for contrast media
• CPC Class Codes: A61M 5/1408 in parallel, e.g. manifolds, sequencing valves access sites A61M39/02; tube connectors A61M39/10
• CPC Class Codes: A61M 5/16854 by monitoring line pressure

Abstract

Power injection catheters for high flow rate delivery of fluids are disclosed. In one embodiment, a catheter may include a body defining one lumen and a plurality of extension tubes each comprising a lumen in fluid communication with the one lumen of the catheter body. Further, an extension tube may be configured for performing power injection and an extension tube may include a proximal valve. In another embodiment, a catheter may comprise a plurality of lumens and extension tubes, each of the extension tubes comprising a lumen in fluid communication with one lumen of the catheter body, respectively. At least one extension tube may be configured for performing power injection and at least one extension tube may include a proximal valve. Such catheters may include a pressure relief mechanism for preventing overpressurizing of the catheter. A method of injecting a fluid into a patient'"'"'s body is disclosed.

Claims

1. A catheter comprising:

an elongated catheter body including a proximal end and a distal end, the body defining one lumen;

a plurality of extension tubes, each of the plurality of extension tubes comprising a lumen in fluid communication with the one lumen of the catheter body; and

wherein a first of the plurality of extension tubes is configured for performing power injection and a second of the plurality of extension tubes includes a proximal valve.

2. The catheter of claim 1, wherein the proximal valve is configured for:

allowing infusion when an infusion pressure differential exceeds a selected magnitude; and

allowing aspiration when an aspiration pressure differential exceeds a selected magnitude.

3. The catheter of claim 1, wherein the proximal valve comprises a deformable element including a slit formed through the deformable element.

4. The catheter of claim 3, wherein the deformable element comprises a deformable disk positioned between a proximal body portion and a distal body portion of the proximal valve.

5. The catheter of claim 4, wherein the proximal body portion and the distal body portion are affixed to one another.

6. The catheter of claim 3, further comprising a cap affixable to the second of the plurality of extension tubes, and cap configured to inhibit fluid communication through the second of the plurality of extension tubes.

7. The catheter of claim 6, wherein the cap further comprises a support element extending from a distal end of cap, the support element configured to contact the deformable element and resist fluid communication through the deformable element.

8. The catheter of claim 1, further comprising a valve for controlling fluid communication between the one lumen of the catheter body and one of the following:

the first of the plurality of extension tubes configured for performing power injection and the second of the plurality of extension tubes including a proximal valve.

9. The catheter of claim 1, further comprising a pressure relief mechanism configured to prevent overpressurizing of the one lumen of the catheter body, the pressure relief mechanism comprising one or more of the following:

a balloon, a burst disk, a relief valve, and/or an inline valve.

10. The catheter of claim 1, further comprising a pressure relief mechanism configured to avoid overpressurizing of the first of the plurality of extension tubes configured for performing power injection.

11. The catheter of claim 1, wherein the catheter is configured to accommodate a fluid flow rate of at least about 5 cc per second through the one lumen.

12. A catheter comprising:

an elongated catheter body including a proximal end and a distal end, the body defining a plurality of lumens;

a plurality of extension tubes, each of the plurality of extension tubes comprising a lumen in fluid communication with one lumen of the plurality of lumens of the catheter body; and

wherein at least one of the plurality of extension tubes is configured for performing power injection and at least one of the plurality of extension tubes includes a proximal valve.

13. The catheter of claim 12, wherein:

the body of the catheter defines a first lumen and a second lumen; and

the plurality of extension tubes comprises;

a main extension tube in fluid communication with a first of the two lumens of the catheter; and

two secondary extension tubes configured for fluid communication with a second of the two lumens of the catheter.

14. The catheter of claim 13, wherein the main extension tube further comprises a connector to which the first of the secondary extension tubes may be coupled so that fluid communication may occur with the first lumen and the second lumen of the catheter simultaneously.

15. The catheter of claim 13, wherein a first of the two secondary extension tubes is configured for performing power injection and a second of the two secondary extension tubes includes the proximal valve.

16. The catheter of claim 15, further comprising:

a valve for controlling fluid communication between the second lumen of the catheter body and one of the following;

the first of the two secondary extension tubes configured for performing power injection and the second of the two secondary extension tubes including a proximal valve.

17. The catheter of claim 12, wherein:

the body of the catheter defines a first lumen, a second lumen, and a third lumen; and

the plurality of extension tubes comprises;

a main extension tube in fluid communication with the first lumen of the catheter;

a first pair of secondary extension tubes configured for fluid communication with the second lumen of the catheter; and

a second pair of secondary extension tubes configured for fluid communication with the third lumen of the catheter.

18. The catheter of claim 17, wherein the main extension tube further comprises a connector to which the first of the first pair of secondary extension tubes and the first of the second pair of extension tubes may be coupled so that fluid communication may occur with each of the first lumen, second lumen, and third lumen of the catheter simultaneously.

19. The catheter of claim 17, wherein:

a first of the first pair of secondary extension tubes and a first of the second pair of secondary extension tubes are configured for performing power injection; and

a second of the first pair of secondary extension tubes and a second of the second pair of secondary extension tubes include the proximal valve.

20. The catheter of claim 19, further comprising:

a first valve for controlling fluid communication between the second lumen of the catheter body and one of the following;

the first of the first pair of secondary extension tubes configured for performing power injection and the second of the first pair of secondary extension tubes including a proximal valve; and

a second valve for controlling fluid communication between the third lumen of the catheter body and one of the following;

the first of the second pair of secondary extension tubes configured for performing power injection and the second of the second pair of secondary extension tubes including a proximal valve.

21. The catheter of claim 12, wherein the proximal valve is configured to:

allow infusion when an infusion pressure differential exceeds a selected magnitude

allow aspiration when an aspiration pressure differential exceeds a selected magnitude.

22. The catheter of claim 12, wherein the proximal valve comprises a deformable element including a slit formed through the deformable element.

23. The catheter of claim 22, wherein the deformable element comprises a deformable disk positioned between a proximal body portion and a distal body portion of the proximal valve.

24. The catheter of claim 23, wherein the proximal body portion and the distal body portion are affixed to one another.

25. The catheter of claim 22, further comprising a cap affixable to the at least one of the plurality of extension tubes including the proximal valve, the cap configured to inhibit fluid communication through the at least one of the plurality of extension tubes including the proximal valve.

26. The catheter of claim 25, wherein the cap further comprises a support element extending from a distal end of cap, the support element configured to contact the deformable element and resist fluid communication through the deformable element.

27. The catheter of claim 12, further comprising a pressure relief mechanism configured to prevent overpressurizing at least one of the plurality of lumens of the catheter body, the pressure relief mechanism comprising one or more of the following:

a balloon, a burst disk, a relief valve, and/or an inline valve.

28. The catheter of claim 12, wherein the catheter is configured to accommodate a fluid flow rate of at least about 5 cc per second through the plurality of lumens.

29. A method of injecting a fluid into a patient'"'"'s body, comprising:

inserting a catheter into a circulatory system of a patient, the catheter including at least one lumen and including at least one extension tube comprising a proximal valve, the at least one extension tube capable of fluid communication with the at least one lumen of the catheter;

wherein the proximal valve is structured to inhibit fluid flow for pressures developed within the at least one lumen of the catheter below a selected aspiration pressure;

developing a pressure exceeding the selected aspiration pressure within the at least one lumen of the catheter by injecting a fluid into the at least one lumen of the catheter; and

substantially preventing fluid flow through the at least one extension tube comprising the proximal valve.

30. The method of claim 29, further comprising relieving fluid pressure inside the at least one lumen of the catheter.

31. The method of claim 29, wherein substantially preventing fluid flow through the at least one extension tube comprising the proximal valve comprises clamping the at least one extension tube.

32. The method of claim 29, wherein substantially preventing fluid flow through the at least one extension tube comprising the proximal valve comprises coupling a cap to the at least one extension tube comprising the proximal valve.

33. The method of claim 32, wherein coupling the cap to the at least one extension tube comprising the proximal valve comprises engaging a surface of a deformable element of the proximal valve with the cap.

34. The method of claim 29, wherein injecting a fluid into the at least one lumen of the catheter comprises injecting fluid into a plurality of lumens of the catheter simultaneously.