Implantable heart assist system and method of applying same
First Claim
1. A method for operating a pump, comprising:
- implanting minimally invasively in a patient a pump having an inlet configured to fluidly communicate with a source of blood, the pump configured to fluidly communicate with an outflow conduit to permit the pump to dispense blood into the outflow conduit; and
operating the pump at a subcardiac volumetric rate to pump blood from the inlet to the outflow conduit to supplement the patient'"'"'s circulation.
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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 provides a vascular graft that has a first end that is sized and configured to couple to a non-primary blood vessel and a second end that is fluidly coupled to a pump to conduct blood between the pump and the non-primary blood vessel. An outflow conduit is also provided that has a first end sized and configured to be positioned within the same or different blood vessel, whether primary or non-primary, through the vascular graft. The outflow conduit is fluidly coupled to the pump to conduct blood between the pump and the patient. The vascular graft may be connected to the blood vessel subcutaneously to permit application of the extracardiac pumping system in a minimally-invasive procedure.
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Citations
45 Claims
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1. A method for operating a pump, comprising:
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implanting minimally invasively in a patient a pump having an inlet configured to fluidly communicate with a source of blood, the pump configured to fluidly communicate with an outflow conduit to permit the pump to dispense blood into the outflow conduit; and operating the pump at a subcardiac volumetric rate to pump blood from the inlet to the outflow conduit to supplement the patient'"'"'s circulation. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method of operating a pump, comprising:
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implanting extrathoracically and subdermally in a patient a pump configured to be coupled with an outflow conduit to permit the pump to fluidly communicate with an inlet port of the pump and the outflow conduit; and operating the pump at a subcardiac volumetric rate to pump blood from the inlet port to the outflow conduit to supplement the patient'"'"'s circulation. - View Dependent Claims (13, 14, 15, 16, 17, 18)
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19. A method for operating a pump, comprising:
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implanting subcutaneously in a patient a pump to receive blood from an inlet of the pump and to dispense blood through an outflow conduit into a blood vessel of the patient; and operating the pump at a sub-cardiac flow rate to flow blood from the inlet of the pump to the blood vessel through the outflow conduit to supplement the patient'"'"'s circulation. - View Dependent Claims (20, 21, 22, 23)
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24. A pumping system for treating a patient experiencing congestive heart failure, the system comprising:
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a pump configured to pump blood through the patient at subcardiac flow rates, an inlet configured to direct blood into the pump; and an outflow conduit configured to be fluidly coupled to the pump to direct blood from the pump to the vasculature, the outflow conduit having a first end configured to enable fluid communication between the outflow conduit and the vasculature via a blood vessel that is not directly connected to the heart; wherein the outflow conduit is sized and configured to be implantable using a minimally-invasive surgical procedure whereby fluid communication between the outflow conduit and the vasculature may be made subcutaneously. - View Dependent Claims (25, 26, 27, 28, 29, 30, 31)
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32. A device for treating a patient, comprising:
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a pump configured to pump blood through the patient at subcardiac flow rates; the pump comprising an inlet configured to permit blood to enter the pump; and the pump having an outlet configured to be fluidly coupled with an outflow conduit to direct blood away from the pump; wherein the pump is configured to be implanted within the patient minimally invasively. - View Dependent Claims (33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45)
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Specification