Garrett Ebersole,Nicolette LaPierre,Matthew Dinino,Kevin Desjardin,Roy Pilletere,Eric Brown
申请号：
US16238823
公开号：
US20200214740A1
申请日:
2019.01.03
申请国别(地区):
US
年份:
2020
代理人:
摘要：
A cannula includes an instrument valve housing and a valve assembly disposed within the instrument valve housing. The valve assembly includes a seal assembly having at least one seal member including a ring portion and a septum seal extending across the ring portion. The valve assembly further includes a guard assembly and a centering mechanism. The guard assembly includes a plurality of guard members. Each guard member includes a ring portion, and a flap portion having first and second flap sections and a groove disposed between the first and second flap sections. The centering mechanism includes an annular ring and a plurality of spokes extending outwardly from the annular ring. The assemblies are supported within the annular ring which is disposed within the instrument valve housing. The flap portions of the guard members are configured to engage and stretch the septum seal during reception of a surgical instrument through the valve assembly.
