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US 12,708,358 B2Granted
Minimally-invasive defect closure
AssigneeEdwards Lifesciences Corporation
InventorsFelino V. Cortez, Jr., Stephen Cournane, Nancy Ling Chung, Luke Anthony Zanetti, Ashley Nicolette Hinga, Stephen Epstein
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Abstract
Septal defect repair involves advancing an elongate shaft into an atrium of a heart of a patient through an outer atrial wall of the heart, contacting an atrial septum of the heart with a distal end of the elongate shaft, deploying a plurality of tissue anchors from the elongate shaft in tissue of the atrial septum, and cinching suture tails associated with the plurality of tissue anchors to at least partially close a defect in the atrial septum.
Claims20
A method of repairing a septal defect, the method comprising:
- inserting a rigid lumen of a hemostatic introducer through a chest wall portion that is over a left atrium of a heart of a patient;
- advancing a rigid elongate shaft through the rigid lumen of the hemostatic introducer, through an outer atrial wall of the left atrium, and into the left atrium;
- contacting an atrial septum of the heart with a distal end of the rigid elongate shaft, thereby forming a straight working lumen from outside the chest wall portion and spanning laterally across the left atrium directly to the atrial septum;
- deploying a plurality of tissue anchors from the rigid elongate shaft in tissue of the atrial septum;
- and
- cinching suture tails associated with the plurality of tissue anchors to at least partially close a defect in the atrial septum.
3 more elements
A method of repairing a septal defect, the method comprising:
- advancing a rigid elongate shaft through a chest wall and through an outer atrial wall into a left atrium of a heart, the rigid elongate shaft housing a plurality of needles arranged in a parallel relationship;
- positioning a distal end of the rigid elongate shaft at a target position at least partially over a septal defect in an atrial septum such that the distal end overlies at least a portion of a periphery of the septal defect;
- deploying, from the distal end of the rigid elongate shaft while maintaining the distal end at the target position, the plurality of needles through septal tissue at a plurality of spaced locations around the periphery of the septal defect, the plurality of needles being arranged in a parallel relationship within the elongate shaft;
- sliding a plurality of suture-form tissue anchors off respective ones of the plurality of needles while the distal end of the elongate shaft remains at the target position;
- withdrawing the plurality of needles while leaving the plurality of tissue anchors implanted in the septal tissue;
- and
- cinching suture tails associated with the plurality of tissue anchors to approximate edges of the septal defect.
4 more elements
A method of repairing a septal defect, the method comprising:
- advancing a rigid elongate shaft through a chest wall, through an outer atrial wall into a left atrium of a heart of a patient's body, and into contact with an atrial septum;
- deploying first and second tissue anchors in septal tissue of the atrial septum adjacent a septal defect, the first tissue anchor having a first suture tail and the second tissue anchor having a second suture tail, the first and second suture tails passing through the atrial septum;
- threading the first and second suture tails through one or more coils of a knot portion of a locking suture, the one or more coils defining a passage through the knot through which the suture tails pass;
- advancing the knot portion of the locking suture distally along the first and second suture tails using a knot holder shaft disposed within the rigid elongate shaft while the knot portion is in a delivery configuration in which the knot portion is slidable relative to the first and second suture tails;
- approximating the tissue anchors toward one another by distal advancement of the knot portion;
- and
- after achieving a desired approximation of the septal defect, transitioning the knot portion from the delivery configuration to a deployed configuration by proximally pulling a tether line running proximally from the knot portion to constrict the coils around the first and second suture tails to inhibit relative motion between the knot portion and the first and second suture tails.
4 more elements
Dependencies are inferred from the claim text.