Techniques for accurately deriving physiologic parameters of a subject from photoplethysmographic measurements
    1.
    发明授权
    Techniques for accurately deriving physiologic parameters of a subject from photoplethysmographic measurements 有权
    用于从光体积描记测量精确地得出受试者生理参数的技术

    公开(公告)号:US08298154B2

    公开(公告)日:2012-10-30

    申请号:US11972431

    申请日:2008-01-10

    IPC分类号: A61B5/0205

    摘要: Several techniques are disclosed for isolating either heart or breath rate data from a photoplethysmograph, which is a time domain signal such as from a pulse oximeter. The techniques involve the use of filtering in the frequency domain, after a Fast Fourier Transform (FFT) has been conducted on a given photoplethysmograph also references as a given set of discrete time-domain data. The filtering may be applied to an identified fundamental frequency and one or more harmonics for heart related parameters. The filter may be truncated to the frequency data set and further applied multiple times to improve roll off. After filtering, an Inverse FFT (IFFT) is used to reconstruct the time-domain signal, except with undesirable frequency content eliminated or reduced. Calculation or measurement of parameters is then conducted on this reconstructed time-domain signal.

    摘要翻译: 公开了几种用于从例如来自脉搏血氧计的时间域信号的光电体积描记器中分离心脏或呼吸速率数据的技术。 在对给定的光电体积描记仪进行快速傅里叶变换(FFT)之后,技术还涉及在频域中使用滤波,也可以将参考作为一组给定的离散时域数据。 滤波可以应用于所识别的基频和用于心脏相关参数的一个或多个谐波。 滤波器可以被截断为频率数据集,并进一步应用多次以改善滚降。 滤波后,使用逆FFT(IFFT)重建时域信号,除了消除或减少不期望的频率内容。 然后对该重构的时域信号进行参数的计算或测量。

    TECHNIQUES FOR ACCURATELY DERIVING PHYSIOLOGIC PARAMETERS OF A SUBJECT FROM PHOTOPLETHYSMOGRAPHIC MEASUREMENTS
    3.
    发明申请
    TECHNIQUES FOR ACCURATELY DERIVING PHYSIOLOGIC PARAMETERS OF A SUBJECT FROM PHOTOPLETHYSMOGRAPHIC MEASUREMENTS 审中-公开
    从光电子能谱测量中精确获取物理生物学参数的技术

    公开(公告)号:US20130085354A1

    公开(公告)日:2013-04-04

    申请号:US13626083

    申请日:2012-09-25

    IPC分类号: A61B5/1455 A61B5/0205

    摘要: Several techniques are disclosed for isolating either heart or breath rate data from a photoplethysmograph, which is a time domain signal such as from a pulse oximeter. The techniques involve the use of filtering in the frequency domain, after a Fast Fourier Transform (FFT) has been conducted on a given photoplethysmograph also references as a given set of discrete time-domain data. The filtering may be applied to an identified fundamental frequency and one or more harmonics for heart related parameters. The filter may be truncated to the frequency data set and further applied multiple times to improve roll off. After filtering, an Inverse FFT (IFFT) is used to reconstruct the time-domain signal, except with undesirable frequency content eliminated or reduced. Calculation or measurement of parameters is then conducted on this reconstructed time-domain signal.

    摘要翻译: 公开了几种用于从例如来自脉搏血氧计的时间域信号的光电体积描记器中分离心脏或呼吸速率数据的技术。 在对给定的光电体积描记仪进行快速傅里叶变换(FFT)之后,技术还涉及在频域中使用滤波,也可以将参考作为一组给定的离散时域数据。 滤波可以应用于所识别的基频和用于心脏相关参数的一个或多个谐波。 滤波器可以被截断为频率数据集,并进一步应用多次以改善滚降。 滤波后,使用逆FFT(IFFT)重建时域信号,除了消除或减少不期望的频率内容。 然后对该重构的时域信号进行参数的计算或测量。

    BLOOD PRESSURE MONITOR AND PULSE OXIMETER SYSTEM FOR ANIMAL RESEARCH
    5.
    发明申请
    BLOOD PRESSURE MONITOR AND PULSE OXIMETER SYSTEM FOR ANIMAL RESEARCH 审中-公开
    用于动物研究的血压监视器和脉冲输出系统

    公开(公告)号:US20120004517A1

    公开(公告)日:2012-01-05

    申请号:US12980324

    申请日:2010-12-28

    IPC分类号: A61B5/02 A61B5/1455 A61B5/022

    摘要: An integrated blood pressure monitor and pulse oximeter system includes a blood flow occlusion member configured to selectively occlude blood flow through an appendage of the animal (e.g., the neck or tail); a sensor coupled to the blood flow occlusion member detecting a degree of operation thereof; Light sources coupled to the tail closer to the distal end of the tail than the tail blood flow occlusion member, and selectively directing light of two different wavelengths into the appendage; a light receiver coupled to the appendage and selectively receiving a signal associated with light directed into the appendage from the light sources; and a controller configured to selectively determine blood pressure parameters from the data and pulse oximeter parameters from the data.

    摘要翻译: 综合血压监测器和脉搏血氧计系统包括血液阻塞构件,其构造成选择性地阻塞通过动物的附肢(例如颈部或尾部)的血流; 耦合到所述血流阻塞构件的传感器,其检测其操作程度; 耦合到尾部的光源比尾部血流阻塞构件更靠近尾部远端,并且将两种不同波长的光选择性地引导到附属物中; 耦合到附件的光接收器并且选择性地接收与从光源引导到附属物中的光相关联的信号; 以及控制器,被配置为从数据中选择性地从数据和脉搏血氧计参数确定血压参数。

    FULL BODY PLETHYSMOGRAPHIC CHAMBER INCORPORATING PHOTOPLETHYSMOGRAPHIC SENSOR FOR USE WITH SMALL NON-ANESTHETIZED ANIMALS
    6.
    发明申请
    FULL BODY PLETHYSMOGRAPHIC CHAMBER INCORPORATING PHOTOPLETHYSMOGRAPHIC SENSOR FOR USE WITH SMALL NON-ANESTHETIZED ANIMALS 审中-公开
    全身体积平板灯箱与小型非动物动物共同使用光电子传感器

    公开(公告)号:US20110313264A1

    公开(公告)日:2011-12-22

    申请号:US12968273

    申请日:2010-12-14

    申请人: Bernard F. Hete

    发明人: Bernard F. Hete

    IPC分类号: A61B5/1455

    CPC分类号: A61B5/0806 A61B5/02416

    摘要: A full body plethysmographic chamber includes a noninvasive photoplethysmographic sensor within the chamber. The noninvasive photoplethysmographic sensor is for mobile animals such as small rodents, namely rats and mice in the full body plethysmographic chamber and is useful in a laboratory research environment. The noninvasive photoplethysmographic sensor may be a neck clip or collar which provides an easily affixed attachment mechanism. The neck location will provide significant blood flow under all conditions and also offers inherent bite resistance to the sensor platform. The system of the present invention provides a commutator for the sensor wires for allowing untwisting of the system wires.

    摘要翻译: 全身体积描记腔室包括腔内的无创光电体积描记传感器。 无创光电体积描记传感器适用于小型啮齿动物,即全身体积描记腔中的大鼠和小鼠等移动动物,可用于实验室研究环境。 无创光电体积描记传感器可以是提供容易附着的附接机构的颈夹或颈圈。 颈部位置将在所有条件下提供显着的血流量,并且还提供对传感器平台的固有咬合阻力。 本发明的系统提供一种用于传感器线的换向器,用于允许系统线的解捻。

    Saddle Faced Small Animal Sensor Clip
    7.
    发明申请
    Saddle Faced Small Animal Sensor Clip 审中-公开
    马鞍形小动物传感器夹

    公开(公告)号:US20110137185A1

    公开(公告)日:2011-06-09

    申请号:US12785421

    申请日:2010-05-21

    IPC分类号: A61B5/02 A61B5/00

    摘要: A noninvasive photoplethysmographic sensor platform for small animals provides a spring biased sensor clip, wherein at least one side of the sensor clip is provided with a saddle faced clip face member. The saddle shape of the clip face member may have a hinge end, toward the hinge of the clip, which is longer in the longitudinal direction of the clip and shorter in depth than the distal end. The shorter distal end side (measured longitudinally) of this saddle shape facilitates the ability to align the transmitted and received light with the bone, while the overall saddle shape of the facing provides a physical grip to capture enough tissue to prevent the clip from relocating over time while it is attached to the limb. The shorter hinge end side (depth-wise) also allows the clip to close when it is fully assembled. The edges of the saddle shaped clip are preferably rounded off to prevent the contusions of the tissue that may result from long-term contact. This saddle faced feature works well on only one side of the clip.

    摘要翻译: 用于小动物的非侵入式光电容积传感器平台提供弹簧偏置传感器夹,其中传感器夹的至少一侧设置有鞍形面夹具构件。 夹面构件的鞍座形状可以具有朝向夹子的铰链的铰链端,其在夹子的纵向方向上较长并且比远端更深。 这种马鞍形状的较短的远端侧(纵向测量)有助于将透射和接收的光与骨骼对准的能力,而面部的整体鞍座形状提供物理抓地力以捕获足够的组织以防止夹子重新定位在 时间,而它附加到肢体。 较短的铰链端侧(深度方向)也允许夹子完全组装后关闭。 鞍状夹子的边缘优选地倒圆,以防止长期接触可能引起的组织挫伤。 这个马鞍面对的功能只能在剪辑的一侧工作。

    Method and Apparatus for Simplified Precise Mechanical Gas Mixing and Delivery for Animal Research
    9.
    发明申请
    Method and Apparatus for Simplified Precise Mechanical Gas Mixing and Delivery for Animal Research 审中-公开
    用于动物研究的精简机械气体混合和输送的方法和装置

    公开(公告)号:US20080295842A1

    公开(公告)日:2008-12-04

    申请号:US12129643

    申请日:2008-05-29

    申请人: Bernard F. Hete

    发明人: Bernard F. Hete

    摘要: An apparatus for supplying a precise oxygen-nitrogen gas mixture to an animal comprises (i) A source of pressurized oxygen gas, (ii) A source of pressurized nitrogen gas, (iii) A mechanical two-gas blending valve having a first and second gas inlet couplings, and an outlet coupling, the gas blending valve having a manual selector that can incrementally adjust the oxygen-nitrogen gas mixture within a range of mixtures, and a face plate on the blending valve including markings adjacent to the manual selector that are indicative of specific oxygen-nitrogen mixtures, wherein the gas inlets are coupled to the sources of oxygen and nitrogen, respectively, (iv) A gas dispenser coupled to the outlet of the mechanical two gas blending valve; and (v) An animal interface coupling to deliver the gas mixture to the subject animal. The apparatus may be provided for mixtures of air and any gas of interest.

    摘要翻译: 用于向动物供应精确的氧 - 氮气体混合物的装置包括(i)加压氧气源,(ii)加压氮气源,(iii)机械二气混合阀,其具有第一和第二 气体入口联接器和出口联接器,气体混合阀具有手动选择器,其可以在混合物范围内逐渐调节氧 - 氮气体混合物,并且混合阀上的面板包括与手动选择器相邻的标记 指示特定的氧 - 氮混合物,其中气体入口分别与氧和氮源连接;(iv)与机械两气体混合阀的出口相连的气体分配器; 和(v)耦合以将气体混合物输送到受试动物的动物界面。 可以为空气和感兴趣的任何气体的混合物提供装置。

    ALGORITHMS FOR CALCULATION OF PHYSIOLOGIC PARAMETERS FROM NONINVASIVE PHOTOPLETHYSMOGRAPHIC SENSOR MEASUREMENTS OF AWAKE ANIMALS
    10.
    发明申请
    ALGORITHMS FOR CALCULATION OF PHYSIOLOGIC PARAMETERS FROM NONINVASIVE PHOTOPLETHYSMOGRAPHIC SENSOR MEASUREMENTS OF AWAKE ANIMALS 审中-公开
    用于计算动物动物非活动光电子传感器测量的生理参数的算法

    公开(公告)号:US20120143071A1

    公开(公告)日:2012-06-07

    申请号:US13156489

    申请日:2011-06-09

    IPC分类号: A61B5/02

    摘要: A noninvasive photoplethysmographic sensor system for mobile animals such as small rodents, namely rats and mice is useful such as in a laboratory research environment. The noninvasive photoplethysmographic sensor for mobile animals such as small rodents utilizes multiple FFT's in the processing of the phtotoplethysmograophic signal, where each FFT has a different time record of the signals such as a number of points, or a zero padded FFTs. The noninvasive photoplethysmographic sensor for mobile animals provides actigraphy measurements for the animal.

    摘要翻译: 用于诸如小鼠和小鼠之类的移动动物的无创光电体积描记传感器系统是有用的,例如在实验室研究环境中。 用于诸如小型啮齿动物的移动动物的非侵入性光电容积描记传感器在处理噬菌体同位素信号时利用多个FFT,其中每个FFT具有诸如点数或零填充FFT之类的信号的不同时间记录。 用于移动动物的无创光电体积描记传感器为动物提供了动态测量。