EXPANDABLE SUPPORT STRUCTURE FOR DELIVERY THROUGH A WORKING CHANNEL

摘要

Methods, systems, and devices for providing treatment to a target site are described. The system may include a guide assembly, an expandable support device coupled with the distal end of the guide assembly, and an operative member disposed on the expandable support device. The expandable support device may be configured to transition between a collapsed and expanded configuration. The expandable support device may be supported by one or more flexible supports aligned in parallel with an axis about which the expandable support device collapses and/or multiple splines arranged in a pattern configured to promote transitioning of the expandable support device between an expanded and collapsed configuration. The guide assembly may be configured to provide torque to the expandable support device. The operative member can include multiple electrodes arranged in parallel to the axis about which the expandable support device collapses.

主权项

1. An expandable support device configured for delivery through a working channel and to a target treatment area, comprising:
a solid support member comprising a perimeter and highly elastic or superelastic properties; and a plurality of splines formed in a pattern interior to the perimeter of the solid support member and a plurality of voids between adjacent splines, wherein a width and a spacing of the plurality of splines is configured to promote expansion of the support member between a collapsed configuration and an expanded configuration providing a support surface.