DELIVERY CATHETER SYSTEMS AND METHODS

摘要

A delivery system for implanting a leadless cardiac pacemaker into a patient is provided. The cardiac pacemaker can include a docking or delivery feature having a through-hole disposed on or near a proximal end of the pacemaker for attachment to the delivery system. In some embodiments, the delivery catheter can include first and second tethers configured to engage the delivery feature of the pacemaker. The tethers, when partially aligned, can have a cross-sectional diameter larger than the through-hole of the delivery feature, and when un-aligned, can have a cross-sectional diameter smaller than the through-hole of the delivery feature. Methods of delivering the leadless cardiac pacemaker with the delivery system are also provided.

主权项

1. A method of delivering a medical device to a patient with a delivery catheter, comprising:
positioning an attachment feature of the medical device in proximity to an attachment mechanism of the delivery catheter; inserting the attachment mechanism of the delivery catheter distally through a hole in the attachment feature of the medical device, the attachment mechanism having a cross-sectional diameter smaller than a diameter of the hole; increasing the cross-sectional diameter of the attachment mechanism to prevent the attachment mechanism from moving proximally back through the hole of the attachment feature of the medical device.