Pressure sensing in surgical console
    5.
    发明授权
    Pressure sensing in surgical console 有权
    手术台压力感应

    公开(公告)号:US06955073B2

    公开(公告)日:2005-10-18

    申请号:US10375959

    申请日:2003-02-28

    IPC分类号: A61M1/00 G01L27/00

    摘要: A method of determining the accuracy of a pressure sensor in a surgical console is disclosed. The method involves actuating a linear actuator so that its plunger is linearly displaced a pre-defined amount, and measuring the force exerted by the plunger on a non-compliant member. The accuracy of the linear actuator and the plunger are determined by comparing the force measured in the measuring step to a pre-defined force.

    摘要翻译: 公开了一种确定外科手术台中的压力传感器精度的方法。 该方法包括致动线性致动器,使得其柱塞线性地移位预定量,并且测量柱塞施加在非顺应构件上的力。 线性致动器和柱塞的精度通过将测量步骤中测量的力与预定力进行比较来确定。

    Testing of pressure sensor in surgical cassette
    6.
    发明授权
    Testing of pressure sensor in surgical cassette 有权
    手术盒中压力传感器的测试

    公开(公告)号:US06868720B2

    公开(公告)日:2005-03-22

    申请号:US10376499

    申请日:2003-02-28

    IPC分类号: A61M1/00 G01L27/00 G01B5/16

    摘要: A method of determining the accuracy of a pressure sensor in a surgical cassette is disclosed. The method involves displacing a diaphragm of the sensor a pre-defined amount of displacement, and measuring the force exerted on the diaphragm by the displacing step. The accuracy of the pressure sensor is determined by comparing the force measured in the measuring step to a pre-defined force for the pre-defined amount of displacement.

    摘要翻译: 公开了一种确定手术盒中的压力传感器的精度的方法。 该方法包括将传感器的隔膜移动预定量的位移,并通过移位步骤测量施加在隔膜上的力。 压力传感器的精度通过将测量步骤中测量的力与预定义的位移量的预定力进行比较来确定。

    Liquid venting surgical system and cassette
    7.
    发明授权
    Liquid venting surgical system and cassette 有权
    液体通气手术系统和药盒

    公开(公告)号:US06261283B1

    公开(公告)日:2001-07-17

    申请号:US09387357

    申请日:1999-08-31

    IPC分类号: A61M100

    摘要: A surgical system having a cassette with an aspirant collection chamber and an aspiration vent line that draws fluid from the aspirant collection chamber. The pressure within the collection chamber is maintained near ambient so that when the aspiration vent line is open, fluid flows from the collection chamber and into the aspiration line. Such a system does not require a second source of irrigation fluid, minimizes pressure surges into the irrigation fluid line and does not affect the fluidic performance of the aspiration system. In addition, various vent pressures can be achieved by varying the vertical position of the reservoir relative to the aspiration line.

    摘要翻译: 一种外科系统,其具有带有吸气收集室的盒,以及从吸气收集室抽取流体的抽吸排气管线。 收集室内的压力保持在环境温度附近,使得当吸气排气管线打开时,流体从收集室流入吸入管线。 这样的系统不需要第二个冲洗源,从而最小化冲洗流体管线中的压力冲击,并且不影响抽吸系统的流体性能。 此外,可以通过改变储存器相对于抽吸管线的垂直位置来实现各种排气压力。

    Airflow sensing system
    8.
    发明授权
    Airflow sensing system 失效
    气流感测系统

    公开(公告)号:US5272915A

    公开(公告)日:1993-12-28

    申请号:US824790

    申请日:1992-01-23

    CPC分类号: G01P13/006 G01F1/698 G01P5/12

    摘要: Disclosed is an airflow sensing system for determining the type of airflow flowing over a flight surface. A hot film sensor is driven by a constant voltage feedback circuit that maintains the voltage across the sensor at a predetermined level. A signal processing circuit receives an output signal of the feedback circuit and determines whether the output signal is indicative of laminar, transitional or turbulent airflow. Transitional airflow is distinguished from turbulent airflow by a signal having significant energy in a low-frequency passband from 50-80 Hz. The signal processing circuit drives a three-color LED display to provide a visual indication of the type of airflow being sensed.

    摘要翻译: 公开了一种用于确定在飞行表面上流动的气流的类型的气流感测系统。 热电影传感器由恒定电压反馈电路驱动,其将传感器两端的电压保持在预定水平。 信号处理电路接收反馈电路的输出信号,并确定输出信号是否表示层流,过渡或湍流气流。 过渡气流通过在50-80Hz的低频通带中具有显着能量的信号与湍流气流区分开。 信号处理电路驱动三色LED显示器,以提供正在感测的气流类型的视觉指示。