Patent ID: 8615310
Filing Date: 2013-12-24
Classification: A61M,A61N

Abstract:
1. A leadless pacemaker and delivery system, comprising: a leadless cardiac pacemaker comprising an attachment feature disposed on a proximal portion of the pacemaker, the attachment feature including a through-hole having a diameter; and a delivery catheter comprising: a handle; a catheter shaft coupled to the handle; a first tether disposed within the catheter shaft and extending distally beyond the catheter shaft, the first tether including a first locking feature positioned near a distal portion of the first tether; a second tether disposed within the catheter shaft and extending distally beyond the catheter shaft, the second tether including a second locking feature positioned near a distal portion of the second tether; and a tether adjustment feature coupled to the first tether, the tether adjustment feature configured to adjust a position of the first locking feature with respect to the second locking feature; the delivery catheter comprising an aligned configuration where a portion of the first locking feature is longitudinally aligned with a portion of the second locking feature and comprises a combined cross-sectional diameter larger than the diameter of the pacemaker through-hole, the delivery catheter also comprising an un-aligned configuration where the first locking feature is not longitudinally aligned with the second locking feature and comprises a combined cross-sectional diameter smaller than the diameter of the pacemaker through-hole, wherein movement of the first tether by the tether adjustment feature changes the delivery catheter between the aligned and un-aligned configurations.