发明授权
- 专利标题: Device for producing high pressure in a fluid in miniature
- 专利标题(中): 用于在微型流体中产生高压的装置
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申请号: US10807447申请日: 2004-03-24
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公开(公告)号: US06918547B2公开(公告)日: 2005-07-19
- 发明人: Joachim Jaeger , Pasquale Cirillo , Joachim Eicher , Johannes Geser , Bernhard Freund , Bernd Zierenberg
- 申请人: Joachim Jaeger , Pasquale Cirillo , Joachim Eicher , Johannes Geser , Bernhard Freund , Bernd Zierenberg
- 代理机构: Sterne, Kessler, Goldstein & Fox, PLLC
- 优先权: DE19536902 19951004
- 主分类号: A61M11/00
- IPC分类号: A61M11/00 ; A47K5/12 ; A61M15/00 ; B05B9/043 ; B05B11/00 ; B05B11/06 ; B65D83/76 ; F04B9/14 ; F04B53/10 ; F04B53/12 ; F16K20060101
摘要:
A miniaturized device for producing high pressure in a fluid imposes stringent requirements on the manufacturing process.The device according to the invention consists of a hollow piston displaceably mounted in a cylinder and a valve member which is guided by the hollow piston and mounted so as to be axially movable relative to the hollow piston. The valve member is arranged at one end of the hollow piston inside or immediately in front of the end of the hollow piston.The device is used in a mechanically operated high pressure atomizer. This consists of a two part housing which comprises a pump housing with nozzle, a blocking mechanism, a spring housing with spring, a non-pressurized storage container for the fluid and a medical counter integrated in the spring housing.The valve operates without any auxiliary force, closes very rapidly and is sealed tight against high pressure. The atomizer is safe and simple to operate and environmentally friendly. The fluid is metered extremely accurately.The atomizer is used, for example, to produce an inhalable aerosol of a liquid medicament without the use of propellant gas, at 320 bar, for example.