Control Catheters and Methods for Pulmonary Suffusion and Related Therapies

• US 20130317535A1
• Filed: 05/23/2013
• Published: 11/28/2013
• Est. Priority Date: 05/23/2012
• Status: Active Grant

• Current Assignee: Suffusion Technologies, LLC
• Original Assignee: Health Research Incorporated
• Inventors: Demmy, Todd L.
• Granted Patent: US 10,737,072 B2
• Time in Patent Office: Days
• US Class Current: 606/194
• CPC Class Codes: A61M 2025/018 Catheters having a lateral opening for guiding elongated means lateral to the catheter
• CPC Class Codes: A61M 2025/1052 for temporarily occluding a vessel for isolating a sector
• CPC Class Codes: A61M 25/04 in the body, e.g. expansible A61M25/10, A61M16/0488 take precedence
• CPC Class Codes: A61M 25/1011 Multiple balloon catheters

Abstract

The present invention discloses control catheters and methods for pulmonary suffusion and related therapies. The control catheter may comprise a control end, working end having a first balloon, a minor lumen, and a first and second major lumen. One method of the present invention involves introducing the working end of the catheter into a circulator system of the mammal, positioning the catheter into a desired first lobe pulmonary artery, inflating the minor balloon using the corresponding lumen, positioning the major balloon in the main pulmonary artery, and inflating the major balloon using the corresponding lumen. The method may comprise the additional step of infusing a chemical agent through the distal tip after the inflation of the minor balloon and the major balloon.

Claims

1. A catheter comprising:

a control end;

a first lumen, a second lumen, and a third lumen;

a working end comprising;

a major balloon in fluid communication with the first lumen and configured to be selectively inflated; and

a minor balloon distally located along the catheter with respect to the major balloon, the minor balloon in fluid communication with the second lumen and configured to be selectively inflated; and

an accessory orifice located between the major balloon and the minor balloon, the accessory orifice in communication with the third lumen; and

a distal tip distally located along the catheter with respect to the minor balloon, the distal tip having an orifice in communication with a primary lumen.

2. The catheter of claim 1, wherein the control end is configured for manipulation by an operator.

3. The catheter of claim 1, wherein the first lumen and second lumen have a size of 1-2 F.

4. The catheter of claim 1, wherein the major balloon is configured to occlude blood flow in a main pulmonary artery of a patient when inflated and the minor balloon is configured to occlude blood flow in a branch pulmonary artery of a patient when inflated.

5. The catheter of claim 1, wherein the third lumen is configured such that a stabilization wire may be introduced by an operator into the third lumen.

6. The catheter of claim 1, wherein the third lumen has a size of 5 F.

7. The catheter of claim 1, wherein the first lumen is in communication with a port at the control end of the catheter for introduction or removal of a fluid.

8. The catheter of claim 7, wherein the primary lumen is configured to drain fluid from a location at the distal tip.

9. The catheter of claim 1, wherein the accessory orifice is oriented at 90 degrees with respect to a reference axis of the catheter.

10. The catheter of claim 1, wherein the third lumen has a deflection ramp configured to assist the movement of an accessory through the accessory orifice.

11. The catheter of claim 10, wherein the angle of the deflection ramp is configured to facilitate the positioning of one or more accessories into an upper lobe branch vessel of a lung.

12. A method for selectively controlling pulmonary circulation in an individual using a catheter, the catheter having:

a control end, a plurality of lumens and, a working end, the working end having;

a major balloon and a minor balloon, an accessory orifice located between the major balloon and the minor balloon, and a distal tip distally located along the catheter with respect to the minor balloon,

the method comprising the steps of;

introducing the working end of the catheter into a circulatory system of the mammal;

positioning the catheter into a desired first lobe pulmonary artery;

inflating the minor balloon using the corresponding lumen;

positioning the major balloon in the main pulmonary artery; and

inflating the major balloon using the corresponding lumen.

13. The method of claim 12, wherein the minor balloon is inflated until there is a reduction in pulsatile distal lumen arterial waveform.

14. The method of claim 12, further comprising the steps of:

deflating the minor balloon and major balloon;

inserting a guide wire through the accessory orifice into a second lobe artery;

repositioning the minor balloon and major balloon; and

inflating the minor balloon and major balloon.

15. The method of claim 12, further comprising the step of delivering a dye through the accessory orifice to confirm placement and proper obstruction of the pulmonary arteries.

16. The method of claim 12, further comprising the step of infusing a chemical agent through the distal tip after the inflation of the minor balloon and the major balloon.