Expandable device delivery

摘要

A device for delivering an expandable member to a luminal structure in a patient is described. In some embodiments, the device has a carrier member, with a carrier lumen extending at least partially therethrough. The device can have an elongate member that extends through the carrier lumen across a first notch in the carrier member. The device can have an expandable member that expands within and engages the luminal structure, can be carried by the carrier member, and has a first portion that fits within the first notch. When the elongate member extends through the carrier lumen and across the first notch, the elongate member secures the first portion to the carrier member. The elongate member is configured to move axially through the carrier lumen such that the elongate member permits release of the first portion from the carrier member and expansion of at least part of the expandable member.

主权项

1. A device, for delivering an expandable member to a luminal structure in a patient, comprising:
a carrier member, positionable in a luminal structure in a patient, having a a carrier lumen extending along a central axis of the carrier member; a first notch in the carrier member, wherein, when the carrier member is positioned in the luminal structure, the carrier lumen in fluid communication with a body fluid in the luminal structure at the first notch; an elongate member that extends through the carrier lumen and across the first notch; and an expandable member carried by the carrier member and configured to expand within and engage the luminal structure, the expandable member having a first portion that fits within the first notch in an engaged configuration; wherein in the engaged configuration, (i) the first portion passes from a first end of the first notch through a space between the central axis and the elongate member, (ii) the expandable member terminates in the first portion outside of the first notch, beyond a second end of the first notch, and (iii) the elongate member secures the first portion to the carrier member without being positioned between the expandable member and the central axis within a longitudinal extent of the first notch along the central axis.