Michael D. Hooven,Matthew J. Huddleston,David Stefanchik
申请号：
US15559750
公开号：
US20180043107A1
申请日:
2016.03.02
申请国别(地区):
US
年份:
2018
代理人:
摘要：
A fluid injection needle has a relatively precision fluid flow path. The needle comprises a needle shaft and a sizing shaft axially extending within the needle shaft lumen a selected distance distal of a fluid entry port into the lumen. The sizing shaft has a cross-sectional size smaller than the lumen to define a fluid flow path between the sizing shaft and the needle shaft. An injection device employing such an injection needle and a method of making such a needle are also disclosed.
