Medical device and delivery system for modification of left atrial appendage and methods thereof
First Claim
1. A method for occluding a left atrial appendage of a heart, the method comprising:
- advancing a delivery catheter and medical device through a sheath to the left atrium of a heart and to a distal portion of the sheath, the medical device having an occluder portion and an anchor portion independently moveable between a non-deployed position and a deployed position;
positioning the distal portion of the sheath within the left atrial appendage of the heart with both the occluder portion and anchor portion in the non-deployed position;
withdrawing the sheath relative to the medical device to move the occluder portion of the medical device from the non-deployed position to the deployed position with the anchor portion maintaining the non-deployed position such that the anchor portion is proximal a most distal end of the occluder portion;
actuating a portion of a handle operatively coupled to the medical device with distal movement to move the anchor portion distally from the non-deployed position to the deployed position while the occluder portion maintains the deployed position such that the anchor portion is moved from a proximal position to a distal position so that a portion of the anchor portion is distal the occluder portion;
stabilizing the medical device in the left atrial appendage with the anchor portion engaging tissue in the left atrial appendage in the deployed position; and
releasing the medical device from the delivery catheter in the left atrial appendage.
4 Assignments
0 Petitions
Accused Products
Abstract
Devices, methods and systems are provided for occluding an opening within the tissue of a body, such as a left atrial appendage. In one embodiment, a delivery system for use in occluding an opening in the tissue of a body includes an actuation assembly operatively coupled to a medical device including an anchor portion and an occluder portion. The actuation assembly is configured to move the anchor portion between a deployed state and retracted state while the occluder portion maintains a deployed state. With this arrangement, the deployed occluder portion can be visualized via imaging at a preferred position prior to deploying the anchor portion of the medical device.
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Citations
17 Claims
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1. A method for occluding a left atrial appendage of a heart, the method comprising:
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advancing a delivery catheter and medical device through a sheath to the left atrium of a heart and to a distal portion of the sheath, the medical device having an occluder portion and an anchor portion independently moveable between a non-deployed position and a deployed position; positioning the distal portion of the sheath within the left atrial appendage of the heart with both the occluder portion and anchor portion in the non-deployed position; withdrawing the sheath relative to the medical device to move the occluder portion of the medical device from the non-deployed position to the deployed position with the anchor portion maintaining the non-deployed position such that the anchor portion is proximal a most distal end of the occluder portion; actuating a portion of a handle operatively coupled to the medical device with distal movement to move the anchor portion distally from the non-deployed position to the deployed position while the occluder portion maintains the deployed position such that the anchor portion is moved from a proximal position to a distal position so that a portion of the anchor portion is distal the occluder portion; stabilizing the medical device in the left atrial appendage with the anchor portion engaging tissue in the left atrial appendage in the deployed position; and releasing the medical device from the delivery catheter in the left atrial appendage. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method of occluding a left atrial appendage of a heart, the method comprising:
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providing a medical device having an occluder portion and an anchor portion, a handle having an actuation assembly, and a coupling member extending through a delivery catheter between the medical device and the actuation assembly of the handle; advancing the medical device to the left atrial appendage through a sheath; deploying the occluder portion in the left atrial appendage by withdrawing the sheath while the anchor portion maintains a retracted position such that the anchor portion is entirely proximal a most distal end of the deployed occluder portion; moving an actuation element coupled to the actuation assembly from a first hard stop to a second hard stop so as to move the actuation element in a distal direction to move the anchor portion distally from the retracted position to a deployed position so that a portion of the anchor portion is distal the occluder portion while the occluder portion maintains a deployed position; stabilizing the medical device in the left atrial appendage with the anchor portion engaging tissue in the left atrial appendage in the deployed position; and releasing the medical device from the delivery catheter in the left atrial appendage. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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Specification