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Cannula Seal
专利权人:
Michael Patton
发明人:
Michael Patton,Richard Mazzolla,Michele Jen
申请号:
US13479023
公开号:
US20120253285A1
申请日:
2012.05.23
申请国别(地区):
US
年份:
2012
代理人:
摘要:
Trocar seal assemblies are disclosed which consist of a helically-shaped seal positioned within a trocars cannula wherein, as an instrument is inserted through the central bore of the helically-shaped seal, the helically-shaped seal expands, thereby increasing the diameter of the central bore. In other embodiments, a protective member is positioned within a retaining member wherein the protective member is configured as a helix and, as an instrument is inserted through the central bore of the helix, the helix expands, thereby increasing the diameter of the central bore.
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/
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