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AUTO INJECTOR WITH HOLLOW PLUNGER ROD
专利权人:
MERCK PATENT GMBH
发明人:
Peter Blaabjerg JACOBSEN
申请号:
US16616267
公开号:
US20200139046A1
申请日:
2018.05.16
申请国别(地区):
US
年份:
2020
代理人:
摘要:
A reloadable auto injector includes a syringe with a needle movably positioned in a housing between a first position with the needle inside the housing and a second position with the needle protruding outside the housing. A plunger rod advances in the syringe for delivering a dose of medicament. A plunger rod tube having deflectable locking members interacts with a plunger rod stop to lock the plunger rod. A syringe driver moves the syringe from the first position to the second position. The syringe driver advances the plunger rod tube with the plunger rod to the second position. A plunger rod driver advances the plunger rod in the syringe for delivering a dose of medicament upon unlocking each of the deflectable locking members. A reload mechanism retracts the syringe from the second position to the first position and reloads for repeated activation of the syringe driver.
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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