Annuloplasty Device Having a Helical Anchor and Methods for its Use
First Claim
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1. A method for modifying a heart valve annulus, comprising:
- navigating a distal end of at least one elongated annuloplasty device delivery catheter through a patient'"'"'s vasculature to a heart chamber having the heart valve annulus;
positioning the distal end of the at least one delivery catheter adjacent a portion of a valve annulus;
deploying an annuloplasty device comprising at least one helical anchor and an elongated flexible tether, the helical anchor having a long axis, a distal end with a sharpened tip portion, a proximal end, and a plurality of coils defining an inner channel that communicates along the length of the helical anchor and the tether having a first end and a second end;
implanting the annuloplasty device by rotating the helical anchor into the valve annulus such that the long axis of the helical anchor extends along the valve annulus and the tether is routed through the inner channel such that one end of the tether extends from the distal end of the helical anchor and the other end of the tether extends from the proximal end of the helical anchor; and
withdrawing the delivery catheter from the heart chamber.
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Abstract
A system for modifying a heart valve annulus includes a helically helical anchored annuloplasty device delivered to the annulus via an elongated delivery member. The helical anchors of the devices disclosed herein are rotated into the valve annulus along an anchor guide by using a driver that is movably disposed in the delivery member. A tether is disposed within an inner channel of the helical anchor and a locking device is used to secure the annuloplasty device after the valve annulus has been modified. The annuloplasty device can be delivered to the annulus using, traditional surgical approach or a minimally invasive or catheter based methods.
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Citations
28 Claims
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1. A method for modifying a heart valve annulus, comprising:
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navigating a distal end of at least one elongated annuloplasty device delivery catheter through a patient'"'"'s vasculature to a heart chamber having the heart valve annulus;
positioning the distal end of the at least one delivery catheter adjacent a portion of a valve annulus;
deploying an annuloplasty device comprising at least one helical anchor and an elongated flexible tether, the helical anchor having a long axis, a distal end with a sharpened tip portion, a proximal end, and a plurality of coils defining an inner channel that communicates along the length of the helical anchor and the tether having a first end and a second end;
implanting the annuloplasty device by rotating the helical anchor into the valve annulus such that the long axis of the helical anchor extends along the valve annulus and the tether is routed through the inner channel such that one end of the tether extends from the distal end of the helical anchor and the other end of the tether extends from the proximal end of the helical anchor; and
withdrawing the delivery catheter from the heart chamber. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A method for modifying a mitral valve annulus, comprising:
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navigating an elongated puncture device delivery member to the right atrium of a patient'"'"'s heart;
puncturing the septum between the right atrium and the left atrium of the heart;
withdrawing the puncture device from the heart;
navigating a distal end of an elongated annuloplasty device delivery catheter through a patient'"'"'s vasculature to the right atrium;
inserting the distal end of the delivery catheter through the septum and into the left atrium of the patient'"'"'s heart positioning the distal end the delivery catheter adjacent at least portion of a valve annulus;
deploying an annuloplasty device comprising at least one helical anchor and an elongated flexible tether, the helical anchor having a long axis, a distal end with a sharpened tip portion, a proximal end, and a plurality of coils defining an inner channel that communicates along the length of the helical anchor and the tether having a first end and a second end;
implanting the annuloplasty device by rotating the helical anchor into a portion of the valve annulus such the long axis of the helical anchor extends along the valve annulus and the tether is routed through the inner channel such that one end of the tether extends from the distal end of the helical anchor and the other end of the tether extends from the proximal end of the helical anchor; and
removing the delivery catheter. - View Dependent Claims (18, 19, 20, 21)
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22. A method for modifying a heart valve annulus, comprising:
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navigating a distal end of an elongated annuloplasty device delivery catheter through a patient'"'"'s vasculature to a heart chamber having the heart valve annulus;
positioning a distal end the delivery catheter adjacent a first portion of a valve annulus;
deploying an annuloplasty device comprising a helical anchor and an elongated flexible tether, the helical anchor having a long axis, a distal end with a sharpened tip portion, a proximal end, and a plurality of coils defining an inner channel that communicates along the length of the helical anchor and the tether having a first end and a second end;
implanting the annuloplasty device by rotating the helical anchor into a portion of the valve annulus such the long axis of the helical anchor extends along the valve annulus and the tether is routed through the inner channel such that one end of the tether extends from the distal end of the helical anchor and the other end of the tether extends from the proximal end of the helical anchor;
removing the delivery catheter;
configuring the tether to shorten the long axis of the helical anchor;
shortening the long axis of the helical anchor to modify the shape of the heart valve annulus;
monitoring the modification of the shape of the heart valve annulus while continuing to make the loop smaller until a desired level of modification is reached;
navigating a cutting device into the heart chamber;
cutting the tether at a location that is adjacent the locking device but between the locking device and the second end of the tether; and
withdrawing the cutting device from the heart. - View Dependent Claims (23, 24, 25, 26, 27, 28)
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Specification