Left atrial appendage occlusion device

Abstract

An exemplary occlusion device is disclosed. In various embodiments, the exemplary occlusion device includes a cap chamber and a bulb chamber for occluding a left atrial appendage (LAA). In particular embodiments, after delivery to the LAA, the cap chamber and the bulb chamber are each inflated via various amounts of fluid(s) to occlude the LAA.

We claim: 
     
         1 . A method for occluding a left atrial appendage, the method comprising:
 passing a balloon system through a catheter system, the balloon system comprising a first chamber and a second chamber;   inflating the balloon system using a connection system that fluidly connects the first chamber and the second chamber via at least one valve, wherein inflating the balloon system comprises:
 inflating the first chamber in a lateral direction such that the first chamber substantially fills a first portion of a left atrial appendage of a patient; and 
 inflating the second chamber such that the second chamber substantially fills a second portion of the left atrial appendage of the patient. 
   
     
     
         2 . The method of  claim 1 , wherein:
 the first chamber and the second chamber are separated by an elastomeric wall;   the connection system a) extends through the first chamber and at least partially though the second chamber, b) is configured for delivering one or more fluids to the first chamber and the second chamber, and c) includes one or more valves;   the first chamber is configured to expand outwardly in a lateral direction from a center of the first chamber to substantially fill a first portion of the left atrial appendage; and   the second chamber is configured to expand outwardly to substantially fill a second portion of the left atrial appendage.   
     
     
         3 . The method of  claim 1 , wherein the balloon system comprises a single polymer structure. 
     
     
         4 . The method of  claim 3 , wherein the single polymer structure comprises a non-porous exterior surface for preventing permeation. 
     
     
         5 . The method of  claim 1 , wherein the connection system comprises:
 a first valve located in the first chamber for preventing fluid from traveling from the first chamber to an exterior of the device; and   a second valve located in the second chamber.   
     
     
         6 . The method of  claim 5 , wherein the connection system further comprises a channel for transporting fluid to the first chamber and the second chamber. 
     
     
         7 . The method of  claim 6 , wherein the channel a) defines one or more openings for transporting fluid to the first chamber, and b) terminates at the second valve. 
     
     
         8 . The method of  claim 1 , wherein the second chamber comprises an exterior for adhesion to a biological structure. 
     
     
         9 . The method of  claim 8 , wherein the exterior of the second chamber comprises a coating for promoting tissue growth within the biological structure. 
     
     
         10 . The method of  claim 8 , wherein the exterior of the second chamber comprises an irregular texture for adhesion to the biological structure. 
     
     
         11 . The method of  claim 1 , wherein the second chamber comprises an exterior for adhesion to the left atrial appendage. 
     
     
         12 . The method of  claim 11 , wherein the exterior of the second chamber comprises a coating for promoting tissue growth within the left atrial appendage. 
     
     
         13 . The method of  claim 11 , wherein the exterior of the second chamber comprises an irregular texture for adhesion to the left atrial appendage. 
     
     
         14 . The method of  claim 1 , wherein the first chamber comprises an exterior for adhesion to a biological structure. 
     
     
         15 . The method of  claim 14 , wherein the exterior of the first chamber comprises a coating for promoting tissue growth within the biological structure. 
     
     
         16 . The method of  claim 14 , wherein the exterior of the first chamber comprises an irregular texture for adhesion to the biological structure. 
     
     
         17 . The method of  claim 1 , wherein the first chamber comprises an exterior for adhesion to the left atrial appendage. 
     
     
         18 . The method of  claim 17 , wherein the exterior of the first chamber comprises a coating for promoting tissue growth within the left atrial appendage. 
     
     
         19 . The method of  claim 17 , wherein the exterior of the first chamber comprises an irregular texture for adhesion to the left atrial appendage.