Frederick E. Shelton, IV,Christopher W. Widenhouse
申请号：
US12420146
公开号：
US08257251B2
申请日:
2009.04.08
申请国别(地区):
US
年份:
2012
代理人:
摘要：
Methods and devices are provided for providing surgical access into a body cavity. In one embodiment, a surgical access device is provided that includes a proximal housing and a distal retractor. At least one stability thread can extend around a perimeter of at least a portion of the distal retractor. In some embodiments, the stability thread can be mechanically adjustable to change a diameter of the distal retractor.
