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    • 5. 发明申请
    • FLUID INJECTION DEVICE AND MEDICAL INSTRUMENT INCLUDING FLUID INJECTION DEVICE
    • 流体注射装置和包括流体注射装置的医用仪器
    • US20120046605A1
    • 2012-02-23
    • US13209543
    • 2011-08-15
    • Kazuaki UCHIDAHideki KOJIMAAtsuya HIRABAYASHI
    • Kazuaki UCHIDAHideki KOJIMAAtsuya HIRABAYASHI
    • A61M5/168
    • A61B17/3203A61B2017/00185A61B2017/0019A61M5/168A61M5/30F04B43/04
    • Fluid is pressurized and supplied to a fluid chamber with a fluid pressurizing and supplying unit. The pressurized fluid within the fluid chamber is ejected through an injection nozzle by reduction of the volume of the fluid chamber caused by applying a driving voltage to a volume varying unit. In applying the driving voltage to the volume varying unit, the effect imposed on fluid injection by pressure fluctuations of the fluid pressurized and supplied to the fluid chamber is compensated by changing the voltage waveform of the driving voltage. When the pressure of the supply flow amount is decreased to a pressure lower than a predetermined pressure, the time intervals of the driving waveform are corrected. The maneuverability of a fluid injection device does not deteriorate even when the pressure of the fluid pressurized and supplied to the fluid chamber fluctuates.
    • 流体被加压并且被供应到具有流体加压和供应单元的流体室。 流体室内的加压流体通过减小通过向体积变化单元施加驱动电压而导致的流体室的体积而通过注射喷嘴喷射。 在将驱动电压施加到体积变化单元时,通过改变驱动电压的电压波形来补偿通过加压并供应到流体室的流体的压力波动对流体注入的影响。 当供给流量的压力降低到低于预定压力的压力时,校正驱动波形的时间间隔。 即使加压并供应到流体室的流体的压力波动,流体注入装置的机动性也不会劣化。
    • 6. 发明申请
    • FLUID EJECTION DEVICE AND MEDICAL INSTRUMENT
    • 流体喷射装置和医用仪器
    • US20120089164A1
    • 2012-04-12
    • US13269885
    • 2011-10-10
    • Hideki KOJIMAAtsuya HIRABAYASHI
    • Hideki KOJIMAAtsuya HIRABAYASHI
    • A61B17/3203
    • A61B17/3203A61B2017/00154A61B2217/005A61B2217/007
    • A fluid ejection device includes a pulsation generator which converts a fluid into a pulsed fluid, a fluid supply unit (supply pump) which supplies the fluid to the pulsation generator, an ejection tube which has an ejection opening communicating with the pulsation generator, a suction tube into which the ejection tube is inserted with play, a suction channel provided between the suction tube and the ejection tube, a suction opening provided at an end of the suction channel in a vicinity of the ejection opening, and a suction unit (suction pump) which sucks fluid in such a manner that the fluid introduced from the suction opening passes through the suction channel. The ejection opening is held by an inner circumferential part of the suction opening. According to this structure, vibration of the ejection tube in the vicinity of the ejection opening can be reduced.
    • 流体喷射装置包括将流体转换为脉冲流体的脉动发生器,向脉动发生器供给流体的流体供给单元(供给泵),具有与脉动发生器连通的喷射口的喷射管, 管,排出管插入其中,设置在吸入管和排出管之间的吸入通道,设置在排出口附近的吸入通道的端部的吸入口和吸引单元(抽吸泵 ),其以从吸入口引入的流体通过抽吸通道的方式吸入流体。 喷出口由吸入口的内周部保持。 根据该结构,可以减少喷射口附近的喷射管的振动。