发明名称 |
Solid state fluid delivery system |
摘要 |
An apparatus and method are disclosed that utilize piezoelectric materials as part of a delivery system capable of the rapidly repetitive dispensing of a fluid to an intended target site. In a particular embodiment, the appartus contemplates a solid state needleless injection system which comprises a first housing structure having a dispensing chamber of variable volume capacity and at least one nozzle element for fluid discharge, and a fluid reservoir operatively connected to the first housing structure, and a second housing structure containing at least one piezoelectric actuator. A valve means is disposed between the fluid reservoir and the dispensing chamber to control the flow of said fluid therebetween. The fluid which may be a medication, is forced out of the dispensing chamber through an injection port upon actuation of the piezoelectric actuator. The piezoelectric actuator interacts with the dispensing chamber in such a manner that the overall capacity of the dispensing chamber may be altered by altering the degree of actuation of the piezoelectric actuator.
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申请公布号 |
US5840062(A) |
申请公布日期 |
1998.11.24 |
申请号 |
US19950555207 |
申请日期 |
1995.11.08 |
申请人 |
GUMASTE, ANAND V.;ABRAMS, ANDREW L.;FLEMING, SCOTT |
发明人 |
GUMASTE, ANAND V.;ABRAMS, ANDREW L.;FLEMING, SCOTT |
分类号 |
A61M5/20;A61M5/30;F04B43/04;(IPC1-7):A61M5/30 |
主分类号 |
A61M5/20 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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