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Negative Pressure Syringe For Drip Prevention
专利权人:
Inter-Med, Inc.
发明人:
Arand Brett,Baeten John,Pond Gary
申请号:
US201615384797
公开号:
US2018169344(A1)
申请日:
2016.12.20
申请国别(地区):
美国
年份:
2018
代理人:
摘要:
In the present invention, a dripless syringe is provided that includes a barrel having fluid therein, the barrel defining an open end and a nozzle opposite the open end, a plunger disposed at least partially within the open end and including a body and a push pin extending from one end of the body, a seal plate slidably mounted to the push pin and a bung disposed over the seal plate and the push pin and sealingly engaged between the seal plate and the barrel the seal plate enables the bung to remain in sealing engagement with the interior of the barrel while the plunger is moved within the barrel. Further, when pressure is removed to cease dispensing of the fluid, the pin allows the bung to retract and provide a negative pressure on the fluid to prevent drips of fluid from leaking out of the nozzle.
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