System and method for delivering a mitral valve repair device
First Claim
1. A method of repairing a mitral valve, comprising:
- inserting a guidewire into a coronary sinus;
advancing a distal end of a guide catheter along the guidewire to an ostium of the coronary sinus;
advancing a delivery catheter through the guide catheter and into the coronary sinus, the delivery catheter including an inner tubing and an outer sheath and a releasable attachment mechanism connecting the inner tubing and the outer sheath, the delivery catheter being configured to deliver a medical implant including a self-expanding proximal anchor, a self-expanding distal anchor and a bridge connecting the proximal and distal anchors;
releasing the releasable attachment mechanism;
retracting the outer sheath relative to the inner tubing to deploy the self-expanding distal anchor;
retracting the delivery catheter to remove slack in the bridge of the medical implant; and
retracting the outer sheath relative to the inner tubing to deploy the self-expanding proximal anchor.
2 Assignments
0 Petitions
Accused Products
Abstract
A system and method is provided for treating a mitral valve. The method preferably includes advancing a guide catheter to an ostium of the coronary sinus and advancing a delivery catheter containing a medical implant through the guide catheter and into the coronary sinus. The delivery catheter has an inner member on which the medical implant is held and an outer sheath which is retractable for deploying and releasing the medical implant. In one embodiment, the medical implant has proximal and distal anchors and a bridge containing resorbable material. The inner member may have a flexible sleeve for gripping and holding a portion of the outer sheath, thereby providing a releasable attachment mechanism. In another embodiment, the inner member may include an inflatable balloon having a tapered distal region which extends from the outer sheath for providing an atraumatic tip. The inflatable balloon may also be used to expand the medical implant and to grip the outer sheath.
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Citations
26 Claims
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1. A method of repairing a mitral valve, comprising:
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inserting a guidewire into a coronary sinus;
advancing a distal end of a guide catheter along the guidewire to an ostium of the coronary sinus;
advancing a delivery catheter through the guide catheter and into the coronary sinus, the delivery catheter including an inner tubing and an outer sheath and a releasable attachment mechanism connecting the inner tubing and the outer sheath, the delivery catheter being configured to deliver a medical implant including a self-expanding proximal anchor, a self-expanding distal anchor and a bridge connecting the proximal and distal anchors;
releasing the releasable attachment mechanism;
retracting the outer sheath relative to the inner tubing to deploy the self-expanding distal anchor;
retracting the delivery catheter to remove slack in the bridge of the medical implant; and
retracting the outer sheath relative to the inner tubing to deploy the self-expanding proximal anchor. - 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 of repairing a mitral valve, comprising:
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providing a delivery catheter including an inner member and an outer sheath, the inner member having an inflatable balloon disposed along a distal end region, the delivery catheter being configured to deliver a medical implant into a coronary sinus, the medical implant having proximal and distal anchors and a bridge connecting the proximal and distal anchors;
advancing a distal end of a guide catheter through a patient'"'"'s vasculature and toward a coronary sinus;
advancing a distal end portion of the delivery catheter through the guide catheter and into the coronary sinus;
retracting the outer sheath relative to the inner member to expose the distal anchor;
inflating the inflatable balloon along the distal end region of the inner member to radially expand the distal anchor; and
retracting the outer sheath relative to the inner member to expose the proximal anchor.
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18. A method of repairing a mitral valve, comprising:
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providing a delivery catheter having an inner member and an outer sheath, the delivery catheter being configured to deliver a medical implant into a blood vessel, the medical implant including a proximal anchor, a distal anchor and a bridge connecting the proximal and distal anchors;
advancing a distal end of the delivery catheter into an anterior interventricular vein;
retracting the outer sheath relative to the inner member to deploy the distal anchor in the anterior interventricular vein; and
retracting the outer sheath relative to the inner member to deploy the proximal anchor in a coronary sinus;
wherein the implant reshapes a mitral valve annulus for repairing the mitral valve. - View Dependent Claims (19)
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20. An apparatus for treating a mitral valve, comprising:
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a delivery catheter including an inner tubing and an outer sheath, the inner tubing having an inflatable balloon disposed along a distal end region; and
a handle attached to a proximal end of the delivery catheter, the handle including a sliding button attached to the outer sheath;
wherein a self-expanding medical implant is located on the inner tubing in a contracted condition and covered by the outer sheath and wherein the sliding button is retractable for withdrawing the outer sheath and deploying the medical implant. - View Dependent Claims (21, 22, 23)
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24. A delivery system for deploying a medical implant in a coronary sinus, comprising:
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a guide catheter;
a delivery catheter including an inner tubing and an outer sheath surrounding at least a portion of the inner tubing, the inner tubing having an attachment mechanism for engaging the outer sheath; and
a handle attached to a proximal end of the delivery catheter;
wherein the medical implant is mounted on the inner tubing and covered by the outer sheath during delivery to the coronary sinus and the handle is configured to withdraw the outer sheath relative to the inner tubing for deploying the medical implant. - View Dependent Claims (25, 26)
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Specification