System and method for rapidly cooling cardiac arrest patient
First Claim
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1. A method comprising:
- advancing an occlusion/infusion catheter into the aorta of a cardiac arrest patient;
using the catheter to occlude the aorta at an anatomic location just above the renal arteries/celiac trunk; and
using the catheter to infuse cold saline into the aorta anatomically below the occlusion caused by the catheter.
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Abstract
A combined occlusion/infusion catheter is placed in the aorta of a cardiac arrest patient to occlude the aorta at a location just above the renal arteries/celiac trunk while rapidly infusing a liter or more of cold saline into the aorta below the occlusion. This flushes white cells from the bowel (now placed into a state of hypothermic stasis) induces hypothermia in the whole body, with perfusion pressure of the cold fluid maximized to the brain.
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Citations
16 Claims
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1. A method comprising:
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advancing an occlusion/infusion catheter into the aorta of a cardiac arrest patient; using the catheter to occlude the aorta at an anatomic location just above the renal arteries/celiac trunk; and using the catheter to infuse cold saline into the aorta anatomically below the occlusion caused by the catheter. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A catheter system, comprising:
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an elongated flexible body; at least an upper balloon on the body at or near a distal end thereof; at least one inflation lumen formed in the body and communicating with the balloon to move the balloon from a deflated configuration, wherein the balloon can be advanced into the aorta of a patient to a location that is anatomically above the renal arteries, to an inflated configuration, wherein the balloon is sufficiently large to substantially completely occlude the aorta above the renal arteries and below the heart; at least one infusion lumen formed on the body and terminating at a port proximal to the upper balloon and anatomically below the balloon when the balloon is inflated and positioned above the renal arteries and below the heart; a source of saline having a temperature of less than five degrees Centigrade and communicating with the infusion lumen; and a source of inflation fluid communicating with the inflation lumen. - View Dependent Claims (9, 10, 11)
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12. A method, comprising:
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advancing a catheter into a patient'"'"'s aorta after the patient has suffered cardiac arrest regardless of the state of spontaneous circulation; positioning an upper balloon while in a deflated configuration to a location just above the renal arteries and celiac trunk; inflating the upper balloon to occlude the lower aorta above the renal arteries and celiac trunk; with the aorta blocked by the upper balloon, infusing cold biocompatible fluid through the catheter into the aorta anatomically below the upper balloon; deflating the balloon; and withdrawing the catheter from the patient. - View Dependent Claims (13, 14, 15, 16)
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Specification