METHODS AND APPARATUS FOR REDUCING LOCALIZED CIRCULATORY SYSTEM PRESSURE
First Claim
Patent Images
1. A shunt for reducing left ventricular end diastolic pressure (LVEDP), the shunt comprising:
- a body adapted for percutaneous placement across an atrial septum of a human, the body having a first end and a second end;
a first self-expanding end region at the first end, the first self-expanding end region adapted to communicate with a left atrium;
a second self-expanding end region at the second end, the second self-expanding end region adapted to communicate with a right atrium; and
a valve disposed within the shunt and configured to open to permit blood to flow from the left atrium to the right atrium only when the left atrial pressure exceeds a pressure in the right atrium,wherein the shunt is configured to reduce LVEDP by transferring blood from the left atrium to the right atrium through the shunt.
4 Assignments
0 Petitions
Accused Products
Abstract
The present invention is thus directed to methods and apparatus for decreasing pressure in a first portion of a vessel of the cardiac structure of a patient by implanting a shunt communicating with an area outside said first portion, whereby a volume of blood sufficient to reduce pressure in said first portion is released.
60 Citations
21 Claims
-
1. A shunt for reducing left ventricular end diastolic pressure (LVEDP), the shunt comprising:
-
a body adapted for percutaneous placement across an atrial septum of a human, the body having a first end and a second end; a first self-expanding end region at the first end, the first self-expanding end region adapted to communicate with a left atrium; a second self-expanding end region at the second end, the second self-expanding end region adapted to communicate with a right atrium; and a valve disposed within the shunt and configured to open to permit blood to flow from the left atrium to the right atrium only when the left atrial pressure exceeds a pressure in the right atrium, wherein the shunt is configured to reduce LVEDP by transferring blood from the left atrium to the right atrium through the shunt. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
-
11. A shunt comprising:
-
a body adapted for percutaneous placement across an atrial septum of a human, the body having a first end and a second end; a first self-expanding end region at the first end, the first self-expanding end region configured to lie in a single plane when deployed and adapted to engage a side of the atrial septum; and a second self-expanding end region at the second end, the second self-expanding end region configured to lie in another single plane when deployed and adapted to engage an opposing side of the atrial septum. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
-
Specification