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    • 4. 发明申请
    • MULTI-WAVELENGTH PHOTON DENSITY WAVE SYSTEM USING AN OPTICAL SWITCH
    • 使用光开关的多波长光子密度波系统
    • WO2011123239A1
    • 2011-10-06
    • PCT/US2011/028437
    • 2011-03-15
    • NELLCOR PURITAN BENNETT LLCLI, YouzhiLIN, AndyMCKENNA, Edward
    • LI, YouzhiLIN, AndyMCKENNA, Edward
    • A61B5/1455A61B5/024G01N21/25G01N21/31G01N21/41G01N21/47
    • A61B5/14551A61B5/02416A61B5/1455A61B2562/0242A61B2562/223G01N21/3151G01N21/49
    • Multi-wavelength photon density wave (PDW) medical systems, methods, and devices are provided. In one embodiment, a multi-wavelength system may include a sensor, a sensor cable, and a patient monitor. The sensor may have an emitter and a detector configured to pass a multi-wavelength PDW input signal into a patient and receive a resulting multi-wavelength PDW output signal. The sensor cable may couple to the sensor and include two optical cables for transmitting and receiving the multi-wavelength PDW signals. The patient monitor may couple to the sensor cable and generate several single-wavelength PDW input signals by modulating a plurality of light sources. The monitor may include an optical switch configured to time-division multiplex the several single-wavelength PDW wave input signals by selecting one of the single-wavelength PDW signals at one time to produce a multi-wavelength PDW signal which is output from the monitor to the sensor via the sensor cable.
    • 提供了多波长光子密度波(PDW)医疗系统,方法和设备。 在一个实施例中,多波长系统可以包括传感器,传感器电缆和患者监护仪。 传感器可以具有发射器和检测器,其被配置为将多波长PDW输入信号传递到患者体内并且接收所得到的多波长PDW输出信号。 传感器电缆可以耦合到传感器并且包括用于发射和接收多波长PDW信号的两条光缆。 患者监视器可以耦合到传感器电缆并且通过调制多个光源来生成多个单波长PDW输入信号。 监视器可以包括配置成通过一次选择一个单波长PDW信号来对多个单波长PDW波输入信号进行时分复用以产生从监视器输出的多波长PDW信号的光开关 传感器通过传感器电缆。
    • 5. 发明申请
    • PATIENT MONITORING SYSTEM AND METHOD UTILISING PHOTON DENSITY WAVES IN TRANSMISSION MODE
    • 患者监测系统和使用传输模式的光子密度波的方法
    • WO2011014297A1
    • 2011-02-03
    • PCT/US2010/037571
    • 2010-06-07
    • NELLCOR PURITAN BENNETT LLCLI, YouzhiLIN, AndyMCKENNA, Edward
    • LI, YouzhiLIN, AndyMCKENNA, Edward
    • A61B5/00
    • A61B5/0261A61B5/14551A61B5/14552A61B5/6826A61B5/6838A61B5/7228
    • Present embodiments are directed to a monitor system, such as a pulse oximetry system. The system may include a detection feature, an emission feature capable of emitting light into a first side of tissue and arranged relative to the detection feature such that the detection feature is capable of detecting the light from a second side of the tissue generally opposite the first side after passing through the tissue, a modulator capable of modulating the light to generate photon density waves at a modulation frequency generally in a range of 50 MHz to 3 GHz, a detector communicatively coupled with the detection feature, wherein the detector is capable of detecting relative characteristics of the photon density waves including amplitude changes and phase shifts, and a processor capable of making determinations relating to a value of a physiologic parameter of the tissue based on the phase shifts and presenting the value to a user.
    • 本实施例涉及一种监测系统,例如脉搏血氧饱和度测定系统。 该系统可以包括检测特征,能够将光发射到组织的第一侧并相对于检测特征布置的发射特征,使得检测特征能够检测来自组织的第二侧的光,大体上与第一 通过组织的调制器,能够调制光以通常在50MHz至3GHz范围内的调制频率产生光子密度波的调制器,与检测特征通信耦合的检测器,其中检测器能够检测 包括振幅变化和相位偏移的光子密度波的相对特性,以及能够基于相位偏移来确定与组织的生理参数相关的确定的处理器,并将该值呈现给用户。
    • 6. 发明申请
    • WAVELENGTH-DIVISION MULTIPLEXING IN A MULTI-WAVELENGTH PHOTON DENSITY WAVE SYSTEM
    • 多波长光子密度波系统中的波长分割多路复用
    • WO2011034700A1
    • 2011-03-24
    • PCT/US2010/046686
    • 2010-08-25
    • NELLCOR PURITAN BENNETT LLCLI, YouzhiLIN, AndyMCKENNA, Edward
    • LI, YouzhiLIN, AndyMCKENNA, Edward
    • A61B5/00
    • A61B5/14551A61B5/0059A61B2562/223
    • Multi-wavelength photon density wave medical systems, methods, and devices are provided. In one embodiment, a multi-wavelength photon density wave patient monitor includes multiple light sources, a driving circuit, a fiber coupler, a sensor cable connector, a wavelength demultiplexer, detectors, and data processing circuitry. The driving circuit may modulate the light sources to produce several single-wavelength input photon density wave signals, which the fiber coupler may join into a multi-wavelength input signal. The sensor cable connector may provide this multi-wavelength input signal to a sensor attached to the patient and receive a multi-wavelength output signal. The wavelength demultiplexer may separate the multi-wavelength output signal into single-wavelength output signals for detection by the detectors. Based on a comparison of one of the single-wavelength output signals to a corresponding one of the single-wavelength input signals, the data processing circuitry may determine a physiological parameter of the patient.
    • 提供了多波长光子密度波医疗系统,方法和装置。 在一个实施例中,多波长光子密度波病人监视器包括多个光源,驱动电路,光纤耦合器,传感器电缆连接器,波长解复用器,检测器和数据处理电路。 驱动电路可以调制光源以产生几个单波长输入光子密度波信号,光纤耦合器可以连接到多波长输入信号中。 传感器电缆连接器可以将该多波长输入信号提供给附接到患者的传感器并且接收多波长输出信号。 波长解复用器可以将多波长输出信号分离成单波长输出信号,以便由检测器检测。 基于单波长输出信号之一与单波长输入信号中的相应一个的比较,数据处理电路可以确定患者的生理参数。