William E. Robinson,James D. Allen, IV,John A. Hammerland, III
申请号：
US16282375
公开号：
US20200268412A1
申请日:
2019.02.22
申请国别(地区):
US
年份:
2020
代理人:
摘要：
An access device configured for accommodating passage of an instrument with a curved end effector includes a housing assembly and a cannula member extending from the housing. The cannula member includes a length and a plurality of rigid portions alternating with a plurality of flexible portions. The cannula member is configured to maintain a circular cross-sectional profile when a force is applied to the cannula member from the outside and to flex to an oblong cross-sectional profile when a force is applied to the cannula member from the inside.
