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Medical device and delivery system for modification of left atrial appendage and methods thereof

  • US 9,351,716 B2
  • Filed: 04/19/2012
  • Issued: 05/31/2016
  • Est. Priority Date: 06/17/2009
  • Status: Active Grant
First Claim
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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.

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