Device and method for regulating pressure in a heart chamber
First Claim
Patent Images
1. A shunt for regulating blood pressure between a patient'"'"'s left atrium and right atrium, the shunt comprising:
- a diabolo-shaped stent comprising intersecting first and second conical sections that intersect at a plane to define a neck, the stent having a length substantially greater than a thickness of the atrial septum and comprising a plurality of sinusoidal rings interconnected by longitudinally extending struts, the neck being adaptable to engage the atrial septum, the first and second conical sections being adaptable to protrude respectively into the left and right atria and to flank the atrial septum substantially without contacting the atrial septum, the stent being configured to transition between a collapsed state suitable for percutaneous delivery and an expanded state when deployed across a patient'"'"'s atrial septum; and
a tissue valve disposed wholly within either the first or second conical sections, the tissue valve configured to shunt blood flow from the left atrium to the right atrium when subjected to a predetermined pressure differential.
1 Assignment
0 Petitions
Accused Products
Abstract
A device for regulating blood pressure in a heart chamber is provided. The device includes a shunt positionable within a septum of the heart. The shunt is designed for enabling blood flow between a left heart chamber and a right heart chamber, wherein the flow rate capacity of the device is mostly a function of pressure in the left heart chamber.
159 Citations
20 Claims
-
1. A shunt for regulating blood pressure between a patient'"'"'s left atrium and right atrium, the shunt comprising:
-
a diabolo-shaped stent comprising intersecting first and second conical sections that intersect at a plane to define a neck, the stent having a length substantially greater than a thickness of the atrial septum and comprising a plurality of sinusoidal rings interconnected by longitudinally extending struts, the neck being adaptable to engage the atrial septum, the first and second conical sections being adaptable to protrude respectively into the left and right atria and to flank the atrial septum substantially without contacting the atrial septum, the stent being configured to transition between a collapsed state suitable for percutaneous delivery and an expanded state when deployed across a patient'"'"'s atrial septum; and a tissue valve disposed wholly within either the first or second conical sections, the tissue valve configured to shunt blood flow from the left atrium to the right atrium when subjected to a predetermined pressure differential. - View Dependent Claims (2, 3, 4, 5, 6, 7, 15, 17, 18, 19, 20)
-
-
8. A method of regulating blood pressure between a patient'"'"'s left atrium and right atrium, the method comprising:
-
deploying a device in a hole in the patient'"'"'s atrial septum, the device comprising a diabolo-shaped stent comprising intersecting first and second conical sections that intersect at a plane to define a neck, the stent having a length substantially greater than a thickness of the atrial septum and comprising a plurality of sinusoidal rings interconnected by longitudinally extending struts, the neck being adaptable to engage the atrial septum, the first and second conical sections being adaptable to protrude respectively into the left and right atria and to flank the atrial septum substantially without contacting the atrial septum, the stent being configured to transition between a collapsed state suitable for percutaneous delivery and an expanded state when deployed in the hole in the patient'"'"'s atrial septum, the device further comprising a tissue valve disposed wholly within either the first or second conical sections, the tissue valve configured to shunt blood flow from the left atrium to the right atrium when subjected to a predetermined pressure differential. - View Dependent Claims (9, 10, 11, 12, 13, 14, 16)
-
Specification