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23 条记录 (耗时 0.038 秒)

    Patient position system and method for a support surface
    11.
    发明授权
    Patient position system and method for a support surface 有权
    患者位置系统和支撑面的方法

    公开(公告)号：US6133837A

    公开(公告)日：2000-10-17

    申请号：US262811

    申请日：1999-03-05

    申请人： Carl William Riley

    发明人： Carl William Riley

    IPC分类号： G08B21/22 ,  G08B23/00

    CPC分类号： A61B5/1115 ,  G08B21/22 ,  A61B2562/046 ,  A61B5/6891

    摘要： A system for determining the location of a patient on a support. The system includes a first and second sensor coupled to a patient's support surface and being at least laterally spaced. A first load signal from the first sensor has a first sensitivity greater than a second sensitivity of a second load signal from the second sensor. A determination circuit receives a first and second load signals and provides an indication of the location of the patient on the support surface from a comparison of the sum of the load signals to a selected value.

    摘要翻译： 一种用于确定患者在支持体上的位置的系统。 该系统包括耦合到患者的支撑表面并且至少横向隔开的第一和第二传感器。 来自第一传感器的第一负载信号具有大于来自第二传感器的第二负载信号的第二灵敏度的第一灵敏度。 确定电路接收第一和第二负载信号，并且从负载信号之和与所选择的值的比较来提供患者在支撑表面上的位置的指示。

    Method and apparatus for piezoelectric sensor status assessment
    12.
    发明授权
    Method and apparatus for piezoelectric sensor status assessment 有权
    压电传感器状态评估方法与装置

    公开(公告)号：US08217667B2

    公开(公告)日：2012-07-10

    申请号：US12355240

    申请日：2009-01-16

    申请人： Carl William Riley

    发明人： Carl William Riley

    IPC分类号： G01R27/08

    CPC分类号： G01R31/2829 ,  A61B5/1036 ,  A61B5/113 ,  A61B5/6887 ,  A61B5/6892

    摘要： A method for assessing the status of a piezoelectric sensor of interest is disclosed. The sensor of interest is located adjacent a surface of a mattress supporting a person. In some instances, the sensor of interest may be coupled to a mattress or coupled to a bed frame that supports the mattress. The method involves analyzing the complex impedance of the excited sensor relative to a complex impedance profile. A system for implementing the method is also disclosed.

    摘要翻译： 公开了一种用于评估感兴趣的压电传感器的状态的方法。 感兴趣的传感器位于支撑人的床垫的表面附近。 在一些情况下，感兴趣的传感器可以耦合到床垫或联接到支撑床垫的床架。 该方法包括分析激发的传感器相对于复阻抗曲线的复阻抗。 还公开了一种用于实现该方法的系统。

    Optical isolation apparatus and method
    18.
    发明授权
    Optical isolation apparatus and method 有权
    光隔离装置及方法

    公开(公告)号：US06750463B1

    公开(公告)日：2004-06-15

    申请号：US09515266

    申请日：2000-02-29

    申请人： Carl William Riley

    发明人： Carl William Riley

    IPC分类号： G02B2700

    CPC分类号： H04B10/807 ,  H04B10/801

    摘要： Optical isolation device (10) optically couples and electrically isolates various components on a local source circuit (36) from components on a remote isolated circuit (30). Light source (12) is coupled to opto-electrical detector (16) and opto-electrical sensor (20) is coupled to optical signal generator (18) by optical channel (14). The opto-electrical detector (16) is electrically coupled to remote isolated circuit (30) which is powered by the electricity generated by opto-electrical detector (16) in response to being impinged upon by light (22). Remote isolated circuit (30) is also electrically coupled to optical signal generator (18) which generates optical signals (32) in response to electrical signals received from remote isolated circuit (30). Opto-electrical sensor (20) produces electrical signals in response to being impinged upon by optical signals (32). Thus, remote isolated circuit (30) is completely electrically isolated from, but in communication with and powered by, local source circuit (36).

    摘要翻译： 光学隔离装置（10）将本地源电路（36）上的各种组件与远程隔离电路（30）上的组件电耦合并电隔离。 光源（12）耦合到光电检测器（16），光电传感器（20）通过光通道（14）耦合到光信号发生器（18）。 光电检测器（16）电耦合到由光电检测器（16）响应于被光（22）撞击而产生的电力的远程隔离电路（30）。 遥控隔离电路（30）还电耦合到光信号发生器（18），其响应于从远程隔离电路（30）接收的电信号而产生光信号（32）。 光电传感器（20）响应被光信号（32）照射而产生电信号。 因此，远程隔离电路（30）与本地电源电路（36）完全电隔离，但与本地电源电路（36）通信并由其供电。