Prosthetic valve with ventricular tethers
First Claim
Patent Images
1. A device for treating a heart, comprising:
- a prosthetic valve comprising a support frame and a valve portion, the valve portion comprising a plurality of leaflets secured to the support frame and configured to coapt to permit blood flow in a first direction through the valve portion and to prevent blood flow in a second direction through the valve portion, wherein the first direction is opposite to the second direction, wherein the support frame comprises a sewing ring configured to be sutured at least one to tissue of an annulus of a native heart valve;
a plurality of locking clips embedded within the sewing ring of the heart valve;
a plurality of tethers, each tether passing through one of the plurality of locking clips, wherein a distal end of each tether has a tissue anchor configured to be secured to heart geometry within a ventricular chamber of the heart, wherein each tether comprises a usable length from the respective locking clip support frame to the distal end; and
a hollow hypotube we-assembled within each of the locking clips, wherein removing the hypotube from its respective locking clip causes the respective tether to be fixed within the locking clip, wherein each locking clip comprises an adjustment mechanism for the corresponding tether for altering the usable length of the tether.
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Accused Products
Abstract
A prosthetic valve assembly and method of implanting same is disclosed. The prosthetic valve assembly includes a prosthetic valve formed by support frame and valve leaflets, with one or more tethers each having a first end secured to the support frame and the second end attached to, or configured for attachment to, to papillary muscles or other ventricular tissue. The tether is configured and positioned so as to avoid contact or other interference with movement of the valve leaflets, while at the same time providing a tethering action between the support frame and the ventricular tissue. The valve leaflets may be flexible (e.g., so-called tissue or synthetic leaflets) or mechanical.
261 Citations
13 Claims
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1. A device for treating a heart, comprising:
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a prosthetic valve comprising a support frame and a valve portion, the valve portion comprising a plurality of leaflets secured to the support frame and configured to coapt to permit blood flow in a first direction through the valve portion and to prevent blood flow in a second direction through the valve portion, wherein the first direction is opposite to the second direction, wherein the support frame comprises a sewing ring configured to be sutured at least one to tissue of an annulus of a native heart valve; a plurality of locking clips embedded within the sewing ring of the heart valve; a plurality of tethers, each tether passing through one of the plurality of locking clips, wherein a distal end of each tether has a tissue anchor configured to be secured to heart geometry within a ventricular chamber of the heart, wherein each tether comprises a usable length from the respective locking clip support frame to the distal end; and a hollow hypotube we-assembled within each of the locking clips, wherein removing the hypotube from its respective locking clip causes the respective tether to be fixed within the locking clip, wherein each locking clip comprises an adjustment mechanism for the corresponding tether for altering the usable length of the tether. - View Dependent Claims (2, 3, 4, 5)
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6. A device for treating a heart, comprising:
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a prosthetic valve comprising a support frame and a valve portion, the valve portion comprising a plurality of flexible leaflets secured to the support frame and configured to coapt to permit blood flow in a first direction through the valve portion and to prevent blood flow in a second direction through the valve portion, wherein the first direction is opposite to the second direction, wherein the support frame further includes commissure posts to which adjacent leaflets attach and a sealing ring located radially outward from the commissure posts and configured to be sealed against tissue of an annulus of a native heart valve; a plurality of elongate members adjustably secured around the support frame and passing through the sealing ring, wherein a distal end of each elongate member has a tissue anchor configured to be secured to heart geometry within a ventricular chamber of the heart, wherein each elongate member comprises a usable length from the support frame to the distal end of between about 10-40 mm; and a plurality of locking clips embedded within the sealing ring through each of which passes one of the elongate members, each locking clip including a collapsible structure which selectively fixes the corresponding elongate member therein, and a hollow hypotube pre-assembled within each of the locking clips, wherein removing the hypotube from its respective locking clip releases the collapsible structure and causes the elongate member to be fixed within the locking clip, wherein each locking clip comprises an adjustment mechanism for the corresponding elongate member for altering the usable length of the elongate member. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13)
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Specification