Apparatus and methods for entering cavities of the body
First Claim
1. A method of providing cardiac support comprising providing a cannula body having an inlet and an outlet, inserting the cannula through a first valve into a heart chamber in an antegrade flow direction and through a second valve out of the heart chamber in an antegrade flow direction, drawing blood into the cannula through the inlet upstream of the first valve, and discharging blood from the cannula through the outlet downstream of the second valve, thereby bypassing the heart chamber, wherein the cannula includes a preformed bend sized and configured to extend within the heart chamber between the inlet and the outlet.
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Accused Products
Abstract
Systems and methods for providing cardiac support provide a cannula body having an inlet and an outlet. The cannula includes a preformed bend sized and configured to extend within the heart chamber between the inlet and the outlet. The cannula is inserted through a first valve into a heart chamber and through a second valve out of the heart chamber. Blood is drawn into the cannula through the inlet and discharged from the cannula through the outlet, thereby bypassing the heart chamber.
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Citations
4 Claims
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1. A method of providing cardiac support comprising
providing a cannula body having an inlet and an outlet, inserting the cannula through a first valve into a heart chamber in an antegrade flow direction and through a second valve out of the heart chamber in an antegrade flow direction, drawing blood into the cannula through the inlet upstream of the first valve, and discharging blood from the cannula through the outlet downstream of the second valve, thereby bypassing the heart chamber, wherein the cannula includes a preformed bend sized and configured to extend within the heart chamber between the inlet and the outlet.
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3. A method of providing cardiac support comprising
providing a cannula body having an inlet and an outlet, inserting the cannula through a first valve into a heart chamber in a retrograde flow direction and through a second valve out of the heart chamber in a retrograde flow direction, drawing blood into the cannula through the inlet upstream of the second valve, and discharging blood from the cannula through the outlet downstream of the first valve, thereby bypassing the heart chamber, wherein the cannula includes a preformed bend sized and configured to extend within the heart chamber between the inlet and the outlet.
Specification