发明名称 |
Surgical cannula with ball valve |
摘要 |
This invention relates to a surgical cannula that has a simple ball valve assembly comprising a ball, rotatably mounted on an axle extending between opposing legs of a pivotable yoke, which engages a seat to seal the instrument inlet to the cannula passageway when a trocar instrument is removed and moves out of the path of the instrument during insertion thus avoiding wear and strain on the valve and the instrumentation.
|
申请公布号 |
US5397314(A) |
申请公布日期 |
1995.03.14 |
申请号 |
US19930149538 |
申请日期 |
1993.11.09 |
申请人 |
FARLEY, KEVIN;GUDEMAN, DANIEL M. |
发明人 |
FARLEY, KEVIN;GUDEMAN, DANIEL M. |
分类号 |
A61B17/34;(IPC1-7):A61M5/00;F16K15/00 |
主分类号 |
A61B17/34 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|