Method and System for Closed Chest Blood Flow Support
First Claim
1. A pumping system for assisting a human patient'"'"'s heart, comprising:
- a blood pump disposed outside the patient'"'"'s body and having an inlet and an outlet;
an inlet cannula configured for insertion percutaneously into the vascular system of the patient, and in fluid communication with the blood pump inlet to provide blood to the blood pump;
an outlet perfusion cannula configured for insertion percutaneously into the vascular system of the patient, and in fluid communication with the blood pump outlet to provide blood to the patient'"'"'s vascular system; and
a control system to control the blood pump, the control system comprising at least two control units for redundant control of the blood pump, and each control unit comprising a watchdog for monitoring the control unit.
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Accused Products
Abstract
A system for assisting flow of blood by a patient'"'"'s heart. The system includes a transseptal cannula adapted to be inserted percutaneously in the vascular system and extend through the atrial septum from the right atrium to the left atrium. The system includes a blood pump mechanism having a blood pump for pumping blood received from the transseptal cannula that has been oxygenated at specified flow rates over a range of physiological pressures. The blood pump is connected to the transseptal cannula. The system includes a perfusion cannula adapted to be inserted percutaneously in the vascular system for returning oxygenated blood to the atrial system of the patient. The perfusion cannula is connected to the blood pump.
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Citations
30 Claims
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1. A pumping system for assisting a human patient'"'"'s heart, comprising:
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a blood pump disposed outside the patient'"'"'s body and having an inlet and an outlet; an inlet cannula configured for insertion percutaneously into the vascular system of the patient, and in fluid communication with the blood pump inlet to provide blood to the blood pump; an outlet perfusion cannula configured for insertion percutaneously into the vascular system of the patient, and in fluid communication with the blood pump outlet to provide blood to the patient'"'"'s vascular system; and a control system to control the blood pump, the control system comprising at least two control units for redundant control of the blood pump, and each control unit comprising a watchdog for monitoring the control unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A pumping system for assisting a human patient'"'"'s heart, comprising:
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a bidirectional cannula for insertion percutaneously into the vascular system of the patient and to extend at least into the patient'"'"'s heart; a blood pump mechanism disposed outside the patient'"'"'s body and connected to the bidirectional cannula and having a blood pump for pumping blood into the vascular system of the patient via the bidirectional cannula; and a control system to control the blood pump, the control system comprising at least two control units for redundant control of the blood pump, and each control unit comprising a watchdog for monitoring the control unit. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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Specification