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    • 5. 发明申请
    • SURGICAL INSTRUMENT
    • 手术器械
    • US20120221027A1
    • 2012-08-30
    • US13406418
    • 2012-02-27
    • Hideki KojimaTakeshi SetoAtsuya Hirabayashi
    • Hideki KojimaTakeshi SetoAtsuya Hirabayashi
    • A61B17/3203
    • A61B17/3203A61B2017/00154A61B2217/005
    • A surgical instrument includes: a fluid chamber to which fluid is supplied; a pulsation generator which produces pulsed flow by pressurizing the fluid supplied to the fluid chamber; an outlet channel which communicates with the fluid chamber through which the pulsed flow is transmitted; a fluid ejection opening which communicates with the outlet channel through which pulse flow is ejected toward an ejection target; a suction opening provided in the vicinity of the fluid ejection opening; and a fluid suctioning unit which suctions the fluid through the suction opening, wherein the opening area at an outlet opening end of the fluid ejection opening on the side near the ejection target is larger than the opening area at an inlet opening end of the fluid ejection opening on the side near the outlet channel.
    • 手术器械包括:供给流体的流体室; 脉动发生器,其通过加压供应到流体室的流体而产生脉冲流; 与流体室连通的出口通道,通过该流体室传送脉冲流; 流体喷射口,其与出口通道连通,通过该出口通道向喷射靶喷射脉冲流; 设置在所述流体喷出口附近的吸入口; 以及流体抽吸单元,其通过吸入口吸引流体,其中在喷射靶附近一侧的流体喷射口的出口开口端处的开口面积大于流体喷射入口开口端处的开口面积 在靠近出口通道的一侧开口。
    • 9. 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。