Intracardiac cage and method of delivering same
First Claim
1. A method of implanting an expandable intracardiac cage into a left atrium of a heart, comprising:
- advancing intravascularly a delivery sheath having a sheath proximal end, a sheath distal end, and a lumen extending therebetween to a right atrium of a heart;
advancing the delivery sheath distal end through an opening between the right atrium and the left atriumwherein the sheath distal end contains an expandable cagehaving a proximal end, a distal end, and a plurality of supports extending therebetween,wherein the expandable cage has a collapsed configuration sized and adapted to be received within the lumen of the sheath distal end, and an expanded configuration for deployment within the heart;
delivering the expandable cage to the left atrium through the delivery sheath; and
expanding the expandable cage within the left atrium,the expandable cage when expanded positioning one end of the expandable cage at an ostium of the left atrium;
positioning the remaining end of the expandable cage at an opposed wall of the left atrium,wherein the cage includes a plurality of tissue engaging anchors proximate at least one of the distal end or the proximal end of the cage such that at least a majority of the plurality of supports has at least one tissue engaging anchor fixedly attached thereto,wherein the cage is sized and adapted to span the distance between opposed walls of the left atrium to maintain a degree of residual compression of the cage while contacting the opposed walls of the left atrium.
0 Assignments
0 Petitions
Accused Products
Abstract
A method of preventing ingress of material into the left atrium of a heart includes providing a delivery sheath, advancing the sheath distal end through an opening between the right atrium and the left atrium of the heart, providing an expandable cage, delivering the expandable cage to the left atrium, and expanding the expandable cage within the left atrium. The expandable cage includes a proximal end, a distal end, and a plurality of supports extending therebetween. The expandable cage also includes a first membrane provided at its proximal end and a second membrane provided at its distal end. The expandable cage has a collapsed configuration so that it can be received within the lumen of the delivery sheath, and an expanded configuration for deployment within the heart. When expanded, the first membrane is positioned at an opening between the left and right atria of the heart, and the second membrane is positioned at the ostium of the left atrial appendage. The first membrane substantially prevents passage of blood between the atria and the second membrane prevents passage of embolic material from the left atrial appendage into the left atrium of the heart.
320 Citations
19 Claims
-
1. A method of implanting an expandable intracardiac cage into a left atrium of a heart, comprising:
-
advancing intravascularly a delivery sheath having a sheath proximal end, a sheath distal end, and a lumen extending therebetween to a right atrium of a heart; advancing the delivery sheath distal end through an opening between the right atrium and the left atrium wherein the sheath distal end contains an expandable cage having a proximal end, a distal end, and a plurality of supports extending therebetween, wherein the expandable cage has a collapsed configuration sized and adapted to be received within the lumen of the sheath distal end, and an expanded configuration for deployment within the heart; delivering the expandable cage to the left atrium through the delivery sheath; and expanding the expandable cage within the left atrium, the expandable cage when expanded positioning one end of the expandable cage at an ostium of the left atrium; positioning the remaining end of the expandable cage at an opposed wall of the left atrium, wherein the cage includes a plurality of tissue engaging anchors proximate at least one of the distal end or the proximal end of the cage such that at least a majority of the plurality of supports has at least one tissue engaging anchor fixedly attached thereto, wherein the cage is sized and adapted to span the distance between opposed walls of the left atrium to maintain a degree of residual compression of the cage while contacting the opposed walls of the left atrium. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
-
Specification