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 delivery sheath proximal end, a delivery 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 delivery 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 delivery 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 the distal end of the expandable cage adjacent an opening in the wall of the left atrium; and
positioning the proximal end of the expandable cage against a wall of the left atrium, wherein the expandable cage includes a plurality of barbs proximate at least one of the distal end or the proximal end of the cage,wherein each barb of the plurality of barbs hold, secure, fix, lock, or maintain a position of an implantable device within the heartwherein the cage is sized and adapted to span a distance between the opening in the wall of the left atrium and the wall of the left atrium against which the proximal end of the expandable cage is positioned to maintain a degree of residual compression of the expandable cage while the distal end of the expandable cage and the proximal end of the expandable cage contact the wall of the left atrium.
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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.
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Citations
20 Claims
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1. A method of implanting an expandable intracardiac cage into a left atrium of a heart, comprising:
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advancing intravascularly a delivery sheath having a delivery sheath proximal end, a delivery 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 delivery 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 delivery 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 the distal end of the expandable cage adjacent an opening in the wall of the left atrium; and positioning the proximal end of the expandable cage against a wall of the left atrium, wherein the expandable cage includes a plurality of barbs proximate at least one of the distal end or the proximal end of the cage, wherein each barb of the plurality of barbs hold, secure, fix, lock, or maintain a position of an implantable device within the heart wherein the cage is sized and adapted to span a distance between the opening in the wall of the left atrium and the wall of the left atrium against which the proximal end of the expandable cage is positioned to maintain a degree of residual compression of the expandable cage while the distal end of the expandable cage and the proximal end of the expandable cage contact the wall 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, 20)
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Specification