LARIAT® Suture Delivery Device

The LARIAT® Suture Delivery Device permanently closes the left atrial appendage (LAA) in patients with atrial fibrillation (AFib) who cannot tolerate blood thinners. About 90% of the clots in patients with atrial fibrillation originate in the LAA when the blood flow is sluggish, accumulating there and clotting.

How It Works

  • Local anesthetic numbs the area under the breast bone.
  • Two catheters are guided into the heart
  • LAA is sealed with a pre-tied suture (similar to a lasso)
  • When tied off, the appendage turns into scar tissue over time.


  • Helps reduce risk of stroke
  • Small incisions
  • Less pain
  • Shorter recovery time
  • Limited risk of complications