Richard C. Ewers,John R. Brustad,Edward D. Pingleton,Nabil Hilal,Gary R. Dulak,Payam Adlparvar,Robert R. Bowes
申请号：
US12360710
公开号：
US08105234B2
申请日:
2009.01.27
申请国别(地区):
US
年份:
2012
代理人:
摘要：
A surgical access device includes a single valve that forms a seal with the body wall and provides an access channel into a body cavity. The valve has properties for creating a zero seal in the absence of an instrument as well as an instrument seal with instruments having a full range of instrument diameter. The valve can include a gel and preferably an ultragel comprised of an elastomer and an oil providing elongation greater than 1000 percent and durometer less than 5 Shore A. The single valve can be used as a hand port where the instrument comprises the arm of a surgeon, thereby providing hand access into the cavity.
