Method and apparatus for treatment of congestive heart failure by improving perfusion of the kidney by infusion of a vasodilator
First Claim
1. A method for treatment of a patient suffering from reduced kidney function comprising the steps of:
- a. directly infusing at least one kidney of the patient with a fluid containing nitric oxide;
b. by the application of the nitric oxide, increasing blood flow through the at least one kidney with resulting restoration of renal function of said kidney to a predetermined renal function level;
c. after the nitric oxide passes through said at least one kidney, a vasodilator effect of said nitric oxide is reduced and does not cause increased blood flow through other body organs of the patient, and d. ceasing the infusion of nitric oxide after the predetermined renal functional level has been achieved.
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Accused Products
Abstract
A method for treating congestive heart failure (CHF) has been developed that restores kidney renal functions by artificial vasodilation of at least one kidney. A vasodilator drug is locally delivered to the kidney via a kidney perfusion catheter. The drug can be mixed with the patient'"'"'s blood, saline or other suitable solvent and the mixture directly applied to the kidney through the catheter. The restoration of kidney function assists the heart by removing excess fluid, urine and toxin from the patient, and by normalizing the patient'"'"'s renin-angiotensin system and other neurohormonal substances. The method is applicable to treat chronic and acute CHF.
268 Citations
26 Claims
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1. A method for treatment of a patient suffering from reduced kidney function comprising the steps of:
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a. directly infusing at least one kidney of the patient with a fluid containing nitric oxide;
b. by the application of the nitric oxide, increasing blood flow through the at least one kidney with resulting restoration of renal function of said kidney to a predetermined renal function level;
c. after the nitric oxide passes through said at least one kidney, a vasodilator effect of said nitric oxide is reduced and does not cause increased blood flow through other body organs of the patient, and d. ceasing the infusion of nitric oxide after the predetermined renal functional level has been achieved. - View Dependent Claims (3, 4, 5, 21, 22, 23, 24)
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2. A method of treatment of a patient having congestive heart failure comprising the steps of:
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a. directly infusing at least one kidney of the patient with a fluid containing nitric oxide;
b. by the application of the nitric oxide, increasing blood flow through the at least one kidney with resulting restoration of renal function of said kidney to a predetermined renal function level;
c. after the nitric oxide passes through said at least one kidney, a vasodilator effect of said nitric oxide becomes reduced and does not cause increased blood flow through other body organs of the patient, and d. ceasing the infusion of nitric oxide after the predetermined renal functional level has been achieved, wherein steps (a), (b) and (c) are repeated on a periodic basis to treat congestive heart failure.
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6. A method of treatment of a patient having inadequate renal function comprising the steps of:
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a. preparing a vasodilator fluid by infusing a gas comprising nitric oxide into a carrier fluid externally of the patient;
b. directly infusing at least one kidney of the patient with the vasodilator fluid;
c. increasing blood flow through the kidney with resulting restoration of renal function of said kidney to a predetermined renal function level;
d. ceasing the infusion of the vasodilator fluid after the predetermined renal functional level has been achieved.
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7. A method of treatment of a patient suffering from inadequate renal function comprising the steps of:
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a. preparing an artificial vasodilator fluid by infusing a nitric oxide gas into a carrier fluid externally of the patient;
b. directly infusing at least one kidney of the patient with the vasodilator fluid;
c. increasing blood flow through the kidney with resulting restoration of renal function of said kidney to a predetermined renal function level;
d. ceasing the infusion of the artificial vasodilation fluid after a predetermined renal functional level has been achieved. - View Dependent Claims (8)
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9. A method to treat congestive heart failure in a patient comprising the steps of:
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a. directly infusing at least one kidney in the patient with a fluid containing a nitric oxide;
b. increasing of blood flow through the kidney after step (a);
c. ceasing step (a) after a predetermined renal functional level has been achieved, or a predetermined time of treatment has elapsed. - View Dependent Claims (10)
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11. A method to treat congestive heart failure in a patient comprising the steps of:
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a. infusing at least one kidney in the patient with a fluid containing nitric oxide;
b. ceasing the nitric oxide infusion step after a predetermined renal functional level has been achieved, or a predetermined time of treatment has elapsed. - View Dependent Claims (12)
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13. A method to treat a kidney in a patient having hypotension induced damage comprising the steps of:
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a. infusing the kidney with a fluid containing a vasodilator fluid comprising nitric oxide and a carrier fluid;
b. increasing of blood flow through the kidney after step (a);
c. after the nitric oxide passes through the kidney, a vasodilator effect of said nitric oxide becomes reduced and does not cause increased blood flow through other body organs of the patient, and d. ceasing step (a) after renal function has been restored. - View Dependent Claims (14, 15, 16, 17)
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18. A method to treat chronic heart failure in a patient comprising the steps of:
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a. infusing a renal artery of the kidney with a fluid containing a nitric oxide, and b. increasing of blood flow through the kidney after step (a), wherein the nitric oxide becomes inactive in the patient promptly after flowing through the kidney. - View Dependent Claims (19, 20)
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25. A method of treatment of a patient having reduced renal function comprising the steps of:
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a. preparing a vasodilator solution comprising nitric oxide and carrier fluid;
b. infusing the vasodilator solution into at least one kidney of the patient;
c. the infusion of the vasodilator solution increases blood flow through the at least one kidney with resulting restoration of renal function of said kidney;
d. ceasing the artificial vasodilatation step after a predetermined renal functional level has been achieved.
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26. A method of treatment of a patient suffering from reduced kidney function comprising the steps of:
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a. infusing at least one kidney of the patient with a vasodilator solution comprising nitric oxide that releases all nitric oxide upon contact with blood in the kidney, and b. ceasing releasing nitric oxide after the blood treated with the infusion of said vasodilator solution passes through the infused kidney.
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Specification