公开(公告)号：US5474541A

公开(公告)日：1995-12-12

申请号：US115396

申请日：1993-08-31

申请人： Anthony F. Ritsky ,  John E. Cameron ,  Tjalke K. Schuurmans ,  Russell L. M. Soobrian ,  Henryk Klakurka ,  Robert K. Watson ,  Christopher G. Szumilas

发明人： Anthony F. Ritsky ,  John E. Cameron ,  Tjalke K. Schuurmans ,  Russell L. M. Soobrian ,  Henryk Klakurka ,  Robert K. Watson ,  Christopher G. Szumilas

IPC分类号： A61M31/00 ,  B65D47/06 ,  B65D47/20 ,  A61M5/178

CPC分类号： B65D47/2075 ,  B65D47/06 ,  A61M31/00 ,  Y02W30/807 ,  Y10T137/791 ,  Y10T137/7912

摘要： A re-usable nozzle for dispensing a flowable product from a resilient container has a removable one-way valve which facilitates cleaning and sterilisation of the nozzle. When the nozzle is used for dispensing a flowable pharmaceutical, the nozzle controls the amount of suck back of pharmaceutical into the nozzle on completion of dispensing. With a stand off of the valve float from the valve seat during dispensing of about one eighth of an inch (1) the suck back is sufficient to draw any drop of contaminated pharmaceutical at the tip of nozzle on completion of dispensing into the nozzle so as to reduce the risk of contamination of the environment and (2) the suck back is sufficiently small to minimize the risk of damage to any tissue with which the nozzle is intimately associated. Furthermore, with the distance from the valve seat to the nozzle tip being at least about three times the stand off, no contaminated pharmaceutical may enter the container so that the container may be re-used.

摘要翻译： 用于从弹性容器分配可流动产品的可重复使用的喷嘴具有便于喷嘴的清洁和灭菌的可移除的单向阀。 当喷嘴用于分配可流动药物时，喷嘴在分配完成时控制药物吸入喷嘴的量。 在分配约八分之一英寸（1）的情况下，阀的阀座从阀座浮动，在完成分配到喷嘴中之后，吸回足以在喷嘴的尖端处抽出任何一滴污染的药物，以便 以减少环境污染的风险和（2）吸吮足够小以最小化损伤喷嘴紧密相关的任何组织的风险。 此外，由于从阀座到喷嘴尖端的距离至少是支架的三倍，所以没有污染的药物可能进入容器，从而可以重新使用容器。