Cormac OPrey,Valerie Anne Scott,Rebecca Ann Wilkins,Thomas John Hector Copeland
申请号：
US13706866
公开号：
US20130150681A1
申请日:
2012.12.06
申请国别(地区):
US
年份:
2013
代理人:
摘要：
A surgical access assembly for accessing a cavity of a patient includes a proximal frame member, a distal frame member, and a membrane between the proximal and distal frame members. The proximal frame member is positionable adjacent an external surface of tissue and has first and second frame portions movable between a contracted condition and an expanded condition to expand an opening defined therethrough. The membrane defines a loop disposed about at least a portion of the proximal frame member at a proximal end thereof and is engaged to the distal frame member at a distal end thereof. The membrane is transitionable between a crumpled condition and an extended condition upon transitioning of the proximal frame member between the contracted condition and the expanded condition.
