Sebastian Wagner,Martin Oberlaender,Alexander Fuchs
申请号：
US14881931
公开号：
US10076357B2
申请日:
2015.10.13
申请国别(地区):
US
年份:
2018
代理人:
摘要：
A trocar sleeve has a hollow shaft having a distal end and a proximal end, the shaft having a rectilinear shaft axis, an external thread rising from an outer surface of the shaft, wherein a first external thread having a shape of a helix has a height, measured from the outer surface up to a vertex of the helix, the height of the helix, seen along the rectilinear shaft axis from distal to proximal increases, and wherein a pitch of the helix, seen along the rectilinear shaft axis from distal to proximal decreases.
