MEDICAL DEVICE FOR MODIFICATION OF LEFT ATRIAL APPENDANGE AND RELATED SYSTEMS AND METHODS

摘要

Several embodiments are set forth of devices, systems and methods for modifying an atrial appendage such as a left atrial appendage (LAA). In one embodiment, a device includes a body (300, 320) that is collapsible and self -expanding. The body includes a textured surface with protruding portions (304, 322) and recessed portions (306,326). The body may be formed of a reticulated foam material and may exhibit a substantially spherical geometry or a truncated spherical geometry. The body may be substantially hollow. In one embodiment, portions of the textured surface may be metalized or have a coating placed thereon to enhance frictional engagement of the body with the atrial appendage wall. In another embodiment (360), a mesh bag (362) is disposed within an LAA and one or more self- expanding bodies (364) are disposed within the mesh bag. The mesh bag is then secured to retain the self -expanding bodies within the bag and the LAA.