Robert E. AILINGER,David GATELY,Matthew S. Carlone
申请号：
US16367522
公开号：
US20200305689A1
申请日:
2019.03.28
申请国别(地区):
US
年份:
2020
代理人:
摘要：
A polymeric device including: an elongated hollow tube having an outer surface； and a spiral fin wound around the outer surface of the hollow tube； wherein the hollow tube and the spiral fin are formed of a single unitary piece through a molding process. The polymeric device can further include a longitudinal projection projecting from the outer surface of the hollow tube, the longitudinal projection having a greater thickness than other portions of the hollow tube and the longitudinal projection extending at least a portion of a longitudinal length of the hollow tube.
