Patent ID: 7056294
Filing Date: 2006-06-06
Classification: A61B,A61M

Abstract:
1. A transseptal access system, comprising a sheath, a dilator and a needle; wherein the sheath comprises: a first curved section shaped to abut the interior wall of the right atrium substantially opposite the septum and directed toward the septum, and a second curved section shaped to direct a distal end of the sheath toward the left atrial appendage; the first curved section having an outer edge that defines a first proximal edge point, and a first distal edge point wherein the intersection between a tangent drawn to the first curved section at the first proximal edge point and a tangent drawn to the first curved section at the first distal edge point, define a first angle and a first plane; the second curved section having an outer edge that defines a second proximal edge point, and a second distal edge point wherein the intersection between a tangent drawn to the second curved section at the second proximal edge point and a tangent drawn to the second curved section at the second distal edge point, define a second angle and a second plane; wherein the first angle is within the range of about 75 degrees to about 105 degrees; wherein the second angle is within the range of about 75 degrees to about 105 degrees; wherein the angle between the first and second plane is within the range of about 75 degrees to about 105 degrees; wherein the needle is coated with PTFE.