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PISTON FOR SYRINGE HAVING VERY SMALL CAPACITY, AND PLUNGER HAVING THE PISTON MOUNTED THERETO
专利权人:
Hideaki Kawamura
发明人:
Hideaki Kawamura
申请号:
US13381320
公开号:
US20120109076A1
申请日:
2010.06.22
申请国别(地区):
US
年份:
2012
代理人:
摘要:
Disclosed are a piston for a micro-volume syringe and a plunger. The micro-volume syringe has a syringe barrel with a space defined in it. The piston is slidable on and along a wall of the space. A leading member to be arranged on a side where the piston comes into contact with a solution filled in the space and a trailing member to be arranged on a side where a plunger rod is to be connected, the latter side being opposite to a solution side of the leading member, have been integrated with each other. The trailing member has a higher hardness than the leading member. With the micro-volume syringe in which a drug solution can be filled in a very small quantity, the piston makes it possible to perform smooth drawing and ejection of the drug solution without leakage. Even if the small piston connected to a tip of the plunger rod is operated in a direction that the piston is to be pulled out of the syringe, the plunger rod does not slip off from the piston accidentally. The piston and plunger are optimal for the micro-volume syringe.
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/

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