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    • 43. 发明授权
      US06263222B1 Signal processing apparatus 失效
    • Signal processing apparatus
    • 信号处理装置
    • US06263222B1
    • 2001-07-17
    • US08943511
    • 1997-10-06
    • Mohamed K. Diab , Massi E. Kiani , Walter M Weber
    • Mohamed K. Diab , Massi E. Kiani , Walter M Weber
    • A61B500
    • G06K9/0051 , A61B5/14551 , A61B5/7214 , A61B5/726 , H04B1/123
    • A signal processor which acquires a first signal, including a first primary signal portion and a first secondary signal portion, and a second signal, including a second primary signal portion and a second secondary signal portion, wherein the first and second primary signal portions are correlated. The signals may be acquired by propagating energy through a medium and measuring an attenuated signal after transmission or reflection. Alternatively, the signals may be acquired by measuring energy generated by the medium. A processor of the present invention generates a primary or secondary reference signal which is a combination, respectively, of only the primary or secondary signal portions. The secondary reference signal is then used to remove the secondary portion of each of the first and second measured signals via a correlation canceler, such as an adaptive noise canceler, preferably of the joint process estimator type. The primary reference signal is used to remove the primary portion of each of the first and second measured signals via a correlation canceler. The processor of the present invention may be employed in conjunction with a correlation canceler in physiological monitors wherein the known properties of energy attenuation through a medium are used to determine physiological characteristics of the medium. Many physiological conditions, such as the pulse, or blood pressure of a patient or the concentration of a constituent in a medium, can be determined from the primary or secondary portions of the signal after other signal portion is removed.
    • 一种信号处理器，其获取包括第一主信号部分和第一辅助信号部分的第一信号和包括第二主信号部分和第二辅信号部分的第二信号，其中第一和第二主信号部分相关 。 信号可以通过传播能量通过介质并在透射或反射之后测量衰减信号来获取。 或者，可以通过测量由介质产生的能量来获取信号。 本发明的处理器分别产生主要或次要参考信号，其仅是主要信号部分或次要信号部分的组合。 然后，辅助参考信号用于经由相关消除器（例如自适应噪声消除器）去除第一和第二测量信号中的每一个的次级部分，优选地是联合过程估计器类型。 主参考信号用于通过相关消除器去除第一和第二测量信号中的每一个的主要部分。 本发明的处理器可以与生理监视器中的相关消除器一起使用，其中通过介质的能量衰减的已知特性用于确定介质的生理特性。 可以从消除其他信号部分之后的信号的主要部分或次要部分确定许多生理条件，例如患者的脉搏或血压或培养基中成分的浓度。
    • 基本信息 添加关注 加入工作空间 PDF全文 PDF下载 全文下载 相似专利 双屏查看 权利要求书 说明书全文 Espacenet 法律信息 同族专利 专利引用
    • 45. 发明授权
      US06771994B2 Pulse oximeter probe-off detection system 有权
    • Pulse oximeter probe-off detection system
    • 脉搏血氧仪探头检测系统
    • US06771994B2
    • 2004-08-03
    • US10374303
    • 2003-02-24
    • Massi E. Kiani , Mohamed K. Diab
    • Massi E. Kiani , Mohamed K. Diab
    • A61B500
    • A61B5/6843 , A61B5/14552
    • The present invention provides a number of improvements that can be incorporated into a pulse oximeter probe to detect when a probe has become dislodged from a patient and/or to prevent a probe-off condition. A probe-off condition occurs when the optical probe becomes partially or completely dislodged from the patient, but continues to detect an AC signal within the operating region of the pulse oximeter. In one aspect, the present invention provides electrical contacts that contact the skin of a patient when the probe is properly attached. In another aspect, the present invention provides a number of louvers placed in front of the sensor's photodetector to filter out oblique light rays that do not originate from a point in front of the detector. Accordingly, if the emitter and photodetector are not properly aligned, the photodetector will not produce a signal within the valid operating range of the pulse oximeter. In accordance with a method of the present invention the pulse oximeter can sound an alarm or display a warning if it determines that the probe is not properly attached to the patient.
    • 本发明提供了许多可以结合到脉搏血氧计探针中以检测探针什么时候已经从患者脱离和/或防止探针状态的改进。 当光学探针从患者部分或完全脱落而继续检测到在脉搏血氧计的操作区域内的AC信号时，会发生探测条件。 一方面，本发明提供了当探针适当地附接时与患者的皮肤接触的电触点。 在另一方面，本发明提供了放置在传感器的光电检测器前方的多个百叶窗，以过滤出不是源于检测器前面的点的倾斜光线。 因此，如果发射器和光电检测器未正确对准，则光电检测器将不会在脉冲血氧计的有效工作范围内产生信号。 根据本发明的方法，如果脉搏血氧计确定探头未正确地附接到患者，则脉搏血氧计可以发出警报或显示警告。
    • 基本信息 添加关注 加入工作空间 PDF全文 PDF下载 全文下载 相似专利 双屏查看 权利要求书 说明书全文 Espacenet 法律信息 同族专利 专利引用
    • 48. 发明授权
      US06526300B1 Pulse oximeter probe-off detection system 有权
    • Pulse oximeter probe-off detection system
    • 脉搏血氧仪探头检测系统
    • US06526300B1
    • 2003-02-25
    • US09595081
    • 2000-06-16
    • Massi E. Kiani , Mohamed K. Diab
    • Massi E. Kiani , Mohamed K. Diab
    • A61B500
    • A61B5/6843 , A61B5/14552
    • The present invention provides a number of improvements that can be incorporated into a pulse oximeter probe to detect when a probe has become dislodged from a patient and/or to prevent a probe-off condition. A probe-off condition occurs when the optical probe becomes partially or completely dislodged from the patient, but continues to detect an AC signal within the operating region of the pulse oximeter. In one aspect, the present invention provides electrical contacts that contact the skin of a patient when the probe is properly attached. In another aspect, the present invention provides a number of louvers placed in front of the sensor's photodetector to filter out oblique light rays that do not originate from a point in front of the detector. Accordingly, if the emitter and photodetector are not properly aligned, the photodetector will not produce a signal within the valid operating range of the pulse oximeter. In accordance with a method of the present invention the pulse oximeter can sound an alarm or display a warning if it determines that the probe is not properly attached to the patient.
    • 本发明提供了许多可以结合到脉搏血氧计探针中以检测探针什么时候已经从患者脱离和/或防止探针状态的改进。 当光学探针从患者部分或完全脱落而继续检测到在脉搏血氧计的操作区域内的AC信号时，会发生探测条件。 一方面，本发明提供了当探针适当地附接时与患者的皮肤接触的电触点。 在另一方面，本发明提供了放置在传感器的光电检测器前方的多个百叶窗，以过滤出不是源于检测器前面的点的倾斜光线。 因此，如果发射器和光电检测器未正确对准，则光电检测器将不会在脉冲血氧计的有效工作范围内产生信号。 根据本发明的方法，如果脉搏血氧计确定探头未正确地附接到患者，则脉搏血氧计可以发出警报或显示警告。
    • 基本信息 添加关注 加入工作空间 PDF全文 PDF下载 全文下载 相似专利 双屏查看 权利要求书 说明书全文 Espacenet 法律信息 同族专利 专利引用
    • 50. 发明授权
      US5685299A Signal processing apparatus 失效
    • Signal processing apparatus
    • 信号处理装置
    • US5685299A
    • 1997-11-11
    • US572488
    • 1995-12-14
    • Mohamed K. Diab , Massi E. Kiani , Walter M. Weber
    • Mohamed K. Diab , Massi E. Kiani , Walter M. Weber
    • A61B5/00 , G06F17/00 , G06F17/40 , H04B1/12
    • G06K9/0051 , A61B5/14551 , A61B5/7214 , H04B1/123 , A61B5/726
    • A signal processor which acquires a first signal, including a first primary signal portion and a first secondary signal portion, and a second signal, including a second primary signal portion and a second secondary signal portion, wherein the first and second primary signal portions are correlated. The signals may be acquired by propagating energy through a medium and measuring an attenuated signal after transmission or reflection. Alternatively, the signals may be acquired by measuring energy generated by the medium. A processor of the present invention generates a primary or secondary reference signal which is a combination, respectively, of only the primary or secondary signal portions. The secondary reference signal is then used to remove the secondary portion of each of the first and second measured signals via a correlation canceler, such as an adaptive noise canceler, preferably of the joint process estimator type. The primary reference signal is used to remove the primary portion of each of the first and second measured signals via a correlation canceler. The processor of the present invention may be employed in conjunction with a correlation canceler in physiological monitors wherein the known properties of energy attenuation through a medium are used to determine physiological characteristics of the medium. Many physiological conditions, such as the pulse, or blood pressure of a patient or the concentration of a constituent in a medium, can be determined from the primary or secondary portions of the signal after other signal portion is removed.
    • 一种信号处理器，其获取包括第一主信号部分和第一辅助信号部分的第一信号和包括第二主信号部分和第二辅信号部分的第二信号，其中第一和第二主信号部分相关 。 信号可以通过传播能量通过介质并在透射或反射之后测量衰减信号来获取。 或者，可以通过测量由介质产生的能量来获取信号。 本发明的处理器分别产生主要或次要参考信号，其仅是主要信号部分或次要信号部分的组合。 然后，辅助参考信号用于经由相关消除器（例如自适应噪声消除器）去除第一和第二测量信号中的每一个的次级部分，优选地是联合过程估计器类型。 主要参考信号用于通过相关消除器去除第一和第二测量信号中的每一个的主要部分。 本发明的处理器可以与生理监视器中的相关消除器一起使用，其中通过介质的能量衰减的已知特性用于确定介质的生理特性。 可以从消除其他信号部分之后的信号的主要部分或次要部分确定许多生理条件，例如患者的脉搏或血压或培养基中成分的浓度。
    • 基本信息 添加关注 加入工作空间 PDF全文 PDF下载 全文下载 相似专利 双屏查看 权利要求书 说明书全文 Global Dossier Espacenet 法律信息 同族专利 专利引用
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