DEVICES, SYSTEMS, AND METHODS TO TREAT HEART FAILURE HAVING AN IMPROVED FLOW-CONTROL MECHANISM
First Claim
1. A device for treating a heart condition in a patient, said device implanted into the atrial septum of the patient'"'"'s heart, the patient'"'"'s heart comprising a left atrium and a right atrium, the device comprising:
- a body element comprising;
a cylindrical core segment defining a passage;
a first annular flange adapted to engage a first surface of the atrial septum;
a second annular flange adapted to engage a second surface of the atrial septum,a flow control element adapted to be partially open when the pressure in the left atrium is substantially equal to the pressure in the right atrium.
2 Assignments
0 Petitions
Accused Products
Abstract
Several unique intra-cardiac pressure vents, placement catheters, methods of placement and methods of treating heart failure are presented. The intra-cardiac pressure vents presented remain partially open under normal intra-cardiac pressures to allow sufficient flow from the left atrium to the right atrium to enable the relief of elevated left atrial pressure and resulting patient symptoms, and also limit the amount of flow from the right atrium to the left atrium by closing when the pressure in the right atrium exceeds the pressure in the left atrium by a predetermined amount.
237 Citations
15 Claims
-
1. A device for treating a heart condition in a patient, said device implanted into the atrial septum of the patient'"'"'s heart, the patient'"'"'s heart comprising a left atrium and a right atrium, the device comprising:
-
a body element comprising; a cylindrical core segment defining a passage; a first annular flange adapted to engage a first surface of the atrial septum; a second annular flange adapted to engage a second surface of the atrial septum, a flow control element adapted to be partially open when the pressure in the left atrium is substantially equal to the pressure in the right atrium. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
-
10. A method of decreasing blood pressure in the heart of a patient, comprising:
-
implanting a device comprising a flow control element between a left atrium and a right atrium of the heart thereby enabling blood flow between the left atrium and the right atrium; with the flow control element, allowing an amount of blood suitable to reduce blood pressure in the left atrium to flow from the left atrium to the right atrium when the pressure in the left atrium is substantially equal to the pressure in the right atrium; and with the flow control element, preventing blood flow from the right atrium to the left atrium when the pressure in the right atrium exceeds the pressure in the left atrium by a pre-determined amount. - View Dependent Claims (11, 12, 14, 15)
-
Specification