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    • 5. 发明授权
    • Method of operating an ultrasound handpiece
    • 操作超声机头的方法
    • US08303530B2
    • 2012-11-06
    • US11746685
    • 2007-05-10
    • Valentine P. InjevRobert J. Cionni
    • Valentine P. InjevRobert J. Cionni
    • A61B17/20
    • A61F9/00745A61B2017/320098A61M2205/3344B06B1/0261B06B3/00
    • A method employing a handpiece having at least one set of piezoelectric elements polarized to produce longitudinal motion when excited at the relevant resonant frequency. The piezoelectric crystals are connected to an ultrasonic horn to which a cutting tip is attached. The horn and/or the cutting tip contains a plurality of diagonal slits or grooves. The slits or grooves produce optimized torsional movement in the cutting tip when the piezoelectric crystals are excited at a second resonant frequency. When in torsional mode, material may clog the cutting tip. The present method includes the step of providing a pulse of longitudinal movement of the tip when clogging is detected.
    • 一种使用具有至少一组压电元件的手持件的方法,所述至少一组压电元件在相关谐振频率下被激发时产生纵向运动。 压电晶体连接到附接有切割尖端的超声波喇叭。 喇叭和/或切割尖端包含多个对角狭缝或凹槽。 当压电晶体以第二谐振频率被激发时,狭槽或凹槽在切割尖端中产生优化的扭转运动。 当处于扭转模式时,材料可能堵塞切割尖端。 本方法包括当检测到堵塞时提供尖端的纵向运动的脉冲的步骤。
    • 7. 发明授权
    • Infusion pressure monitoring system
    • 输液压力监测系统
    • US08608681B2
    • 2013-12-17
    • US13607069
    • 2012-09-07
    • Valentine P. Injev
    • Valentine P. Injev
    • A61B17/20
    • A61F9/00745A61M1/0031A61M1/0058A61M3/0216A61M5/16854A61M2209/01
    • An infusion pressure monitoring system for a phacoemulsification or vitrectomy machine to be operated by a health care provider includes an irrigation path configured to carry an irrigation solution to a surgical site and a fluid sensor configured to detect a fluid parameter in the irrigation path. An input device receives a variable fluid flow command from the health care provider commanding an irrigation fluid flow through the irrigation path at a flow rate corresponding to the command. A controller communicates with both the fluid sensor and the input device. The controller determines an expected fluid pressure value and a dynamically variable threshold pressure value based upon the variable fluid flow command.
    • 用于由医疗保健提供者操作的晶状体乳化或玻璃体切割机的输注压力监测系统包括被配置为将冲洗溶液携带到外科手术部位的冲洗路径和配置成检测冲洗路径中的流体参数的流体传感器。 输入装置接收来自卫生保健提供者的可变流体流动命令,其以对应于该命令的流量指示冲洗流体流过冲洗路径。 控制器与流体传感器和输入装置通信。 控制器基于可变流体流动命令确定预期流体压力值和动态可变阈值压力值。