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12. 发明授权

US07921844B1 Breath-activated fluidic switch and method for drug delivery 有权
标题翻译：呼吸激活流体开关和药物递送方法
公开(公告)号：US07921844B1
公开(公告)日：2011-04-12
申请号：US11601850
申请日：2006-11-20
申请人： Aland Santamarina , Ronald D. Stouffer , Russell Hester
发明人： Aland Santamarina , Ronald D. Stouffer , Russell Hester
IPC分类号： A61M11/00
CPC分类号： A61M11/06 , A61M15/0015 , A61M15/0018 , A61M15/0091 , A61M16/14 , A61M16/208 , A61M2016/0015
摘要： A drug inhaler of the type having an air jet entraining liquid medicine at an entrainment region from a medicine reservoir and nebulize or atomize entrained liquid by impacting a liquid medicine-laden air jet on a flat surface, and deliver the atomized medicine to a patient via a medicine delivery channel. A breath-activated fluidic switch has a power nozzle coupled to a source of air under pressure. The fluidic breath-activated switch has a pair of diverging legs, one of the diverging legs has a control port connected to sense inhalation of the patient, the other of the legs is coupled to the medicine entrainment region, whereby the entrainment of medicine at the medicine entrainment region is prevented by air supplied to the medicine entrainment region from the other of the legs in the absence of sensed patient inhalation at the control port. The fluidic control port is located downstream of the power nozzle a predetermined distance downstream of the wall attachment point.
摘要翻译：一种药物吸入器，其具有在药物储存器的夹带区域夹带液体药物的空气喷射器，并且通过在平坦表面上冲击含液体药物的空气射流而使夹带的液体雾化或雾化，并将雾化的药物经由药物输送通道。呼吸激活的流体开关具有在压力下连接到空气源的动力喷嘴。流体呼吸激活的开关具有一对发散的腿，其中一个分叉腿具有连接以感测患者的吸入的控制端口，另一个腿联接到药物夹带区域，由此将药物夹带在在控制口没有检测到患者吸入的情况下，药物夹带区域被从另一腿部供给药物夹带区域的空气阻止。流体控制端口位于功率喷嘴的下游，在壁附着点的下游预定距离。

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