Gregory R. Whittaker,Steven N. Bittenson,Gary McAlister
申请号：
US14039337
公开号：
US09408631B2
申请日:
2013.09.27
申请国别(地区):
US
年份:
2016
代理人:
摘要：
A cannula system provides a cannula formed of a soft conformable material such as silicone and having an exterior thread. The cannula lacks rigidity, especially axially, and an obturator therefor is provided with an external thread to interact with the cannula an maintain its shape as it is inserted into a patients body.
