Systems and methods for controlling renovascular perfusion
AssigneeCVRx, Inc.
InventorRobert S. Kieval
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Abstract
Devices, systems and methods by which the real or apparent renovascular perfusion and intrarenal pressure may be selectively and controllably increased. By selectively and controllably increasing renovascular perfusion and interstitial hydrostatic pressure when the heart is unable to pump sufficient blood or when renal perfusion is suboptimal, the present invention reduces or reverses neurohormonal activation and fluid retention, and thereby minimizes their deleterious effects on the heart, vasculature, kidneys and other body systems.
Claims29
A method of treating a patient comprising the steps of:
- providing a blood perfusion modification device;
- positioning the blood perfusion modification device in the patient's renovascular circulation or immediately adjacent thereto;
- activating, deactivating or otherwise modifying the blood perfusion modification device to cause an increase in renal perfusion;
- and
- wherein the modification device comprises a flow redirector, and wherein the flow redirector is positioned downstream of a renal artery to redirect blood flow to the renal artery.
A system for treating a patient, the system comprising:
- a blood perfusion modification device positioned in the patient's renovascular circulation or immediately adjacent thereto;
- a sensor positioned upstream of the blood perfusion modification device to generate a signal indicative of a need to modify renal perfusion;
- and
- a control system operably connected to the sensor and blood perfusion modification device, wherein the control system generates a control signal to activate, deactivate or otherwise modify the blood perfusion modification device as a function of the sensor signal to cause an increase in renal perfusion.
Dependencies are inferred from the claim text.