×

Method and apparatus for accessing the left atrial appendage

  • US 7,056,294 B2
  • Filed: 03/15/2002
  • Issued: 06/06/2006
  • Est. Priority Date: 04/13/2000
  • Status: Expired due to Term
First Claim
Patent Images

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 definesa first proximal edge point, anda first distal edge pointwherein 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 definesa second proximal edge point, anda second distal edge pointwherein 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.

View all claims
  • 5 Assignments
Timeline View
Assignment View
    ×
    ×