Implantable heart assist system and method of applying same
First Claim
1. An intravascular system for increasing perfusion through a renal artery, comprising:
- means for pumping blood; and
a conduit fluidly coupled with the pumping means and configured to direct blood in the descending aorta toward a renal artery to maintains or enhance blood flow to a kidney supplied by the renal artery;
whereby the pumping means and the conduit are configured to be insertable into a non-primary vessel subcutaneously in a minimally-invasive procedure.
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Accused Products
Abstract
An extracardiac pumping for supplementing the circulation of blood, including the cardiac output, in a patient without any component thereof being connected to the patient'"'"'s heart, and methods of using same. One embodiment of the intravascular extracardiac system comprises a pump with inflow and outflow conduits that are sized and configured to be implantable intravascularly through a non-primary vessel, whereby it may positioned where desired within the patient'"'"'s vasculature. The system comprises a subcardiac pump that may be driven directly or electromagnetically from within or without the patient. The pump is configured to be operated continuously or in a pulsatile fashion, synchronous with the patient'"'"'s heart, thereby potentially reducing the afterload of the heart. In another embodiment, the system is positioned extracorporeally, with the inflow conduit and outflow conduit applied percutaneously to a non-primary vessel for circulating blood to and from the non-primary vessel or between the non-primary vessel and another blood vessel within the patient'"'"'s vasculature.
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Citations
12 Claims
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1. An intravascular system for increasing perfusion through a renal artery, comprising:
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means for pumping blood; and
a conduit fluidly coupled with the pumping means and configured to direct blood in the descending aorta toward a renal artery to maintains or enhance blood flow to a kidney supplied by the renal artery;
whereby the pumping means and the conduit are configured to be insertable into a non-primary vessel subcutaneously in a minimally-invasive procedure. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method for increasing perfusion through a renal artery, the method comprising:
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providing fluid communication between a conduit and means for pumping blood;
advancing the pumping means to a location within the descending aorta and an outlet of the conduit to a location proximate a renal artery; and
operating said pumping means to direct blood from the descending aorta to the renal artery at volumetric rates that are on average subcardiac to increase perfusion through the renal artery. - View Dependent Claims (9, 10, 11, 12)
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Specification