Pravongviengkham, Kennii,Hart, Charles C.,Albrecht, Jeremy J.,Au, Gigi
申请号：
AU2007226901
公开号：
AU2007226901B2
申请日:
2007.03.21
申请国别(地区):
AU
年份:
2013
代理人:
摘要：
A stabilization seal is used with existing cannulas for forming a gas-tight sealwith tissue in a body wall. The stabilization seal includes a cylindrical inflatableelongate tube having a graduated wall-thickness that is thicker in a centralregion and thinner in a distal-end region. The tube includes a sealing cuff, havingan inflation port, for sealing around a cannula Application of inflation pressuregreatly expands the distal-end region while the central region expands slightly.Another embodiment of a stabilization seal includes an inflatable thread thatis used with a cannula having a helical channel on its outer surface. An inflatabletube is wound into the channel. A distal end of the tube includes a gas-tight sealand a proximal end of the tube includes an inflation port. In the uninflated conditionthe nested tube is flush with the channel Inflating the tube enlarges the cannulaassembly
