Takafumi Kiyono,Takayuki Ohno,Takahide Nakanishi,Toru Fukushima,Eiji Sanada
申请号：
US12442097
公开号：
US09089638B2
申请日:
2007.09.18
申请国别(地区):
US
年份:
2015
代理人:
摘要：
A medical needle device includes a hub having an injection needle fixed at a top end thereof, and a substantially cylindrical sheath which is fit on the hub and having a pair of wings mounted on both sides thereof. The pair of wings are bent along the both sides of the sheath, overlapped and held together at a time of puncturing so that an inner peripheral surface of the sheath strongly presses an outer peripheral surface of the hub, thereby preventing movement of the hub caused by transfer of the hub relative to the sheath both in a rotational direction and a longitudinal direction. sheath has a plurality of protrusions provided on the inner peripheral surface thereof in a circumferential direction, the protrusions being spaced out from each other and the outer peripheral surface of the hub abuts the protrusions.
