Multiple measurement mode in a physiological sensor

    公开(公告)号:US11439329B2

    公开(公告)日:2022-09-13

    申请号:US13548637

    申请日:2012-07-13

    申请人: Marcelo Lamego

    发明人: Marcelo Lamego

    摘要: In a physiological sensor that estimates a true parameter value by providing a predicted parameter value, multiple measurements are taken to increase the accuracy of the predicted parameter value. The sensor can be reapplied between measurements to decrease the probability of an erroneous prediction caused by sensor misplacement. Some measurements can be discarded before calculating a predicted parameter value. The physiological sensor can have a plurality of modes, with one of the modes corresponding to multiple measurement process.

    Adaptive calibration system for spectrophotometric measurements
    54.
    发明授权
    Adaptive calibration system for spectrophotometric measurements 有权
    用于分光光度测量的自适应校准系统

    公开(公告)号:US08571618B1

    公开(公告)日:2013-10-29

    申请号:US12891428

    申请日:2010-09-27

    IPC分类号: A61B5/1455

    摘要: This disclosure describes, among other features, systems and methods for customizing calibration curves, parameter algorithms, and the like to individual users. An initial calibration curve generated based on a population can be used as a starting point in an algorithm for measuring a physiological parameter such as glucose. The measurement algorithm can determine one or more initial measurement values for a user based on the initial calibration curve. In certain embodiments, one or more alternative measurements, such as invasive or minimally invasive measurements, can periodically or sporadically be input into the measurement algorithm. The algorithm can use the alternative measurements to adapt the calibration curve to the individual. As a result, measurements for the individual can more accurately reflect the individual's actual parameter values.

    摘要翻译: 本公开内容还描述了用于将校准曲线,参数算法等定制到个体用户的系统和方法。 基于群体生成的初始校准曲线可以用作用于测量诸如葡萄糖的生理参数的算法中的起始点。 测量算法可以基于初始校准曲线确定用户的一个或多个初始测量值。 在某些实施例中,可以周期地或偶尔地将一个或多个替代测量,例如侵入性或微创测量输入到测量算法中。 该算法可以使用替代测量来将校准曲线适应于个体。 因此,个人的测量可以更准确地反映个人的实际参数值。

    MULTIPLE MEASUREMENT MODE IN A PHYSIOLOGICAL SENSOR
    56.
    发明申请
    MULTIPLE MEASUREMENT MODE IN A PHYSIOLOGICAL SENSOR 审中-公开
    生物传感器中的多种测量模式

    公开(公告)号:US20130041591A1

    公开(公告)日:2013-02-14

    申请号:US13548637

    申请日:2012-07-13

    申请人: Marcelo Lamego

    发明人: Marcelo Lamego

    IPC分类号: G06F19/00

    摘要: In a physiological sensor that estimates a true parameter value by providing a predicted parameter value, multiple measurements are taken to increase the accuracy of the predicted parameter value. The sensor can be reapplied between measurements to decrease the probability of an erroneous prediction caused by sensor misplacement. Some measurements can be discarded before calculating a predicted parameter value. The physiological sensor can have a plurality of modes, with one of the modes corresponding to multiple measurement process.

    摘要翻译: 在通过提供预测参数值来估计真实参数值的生理传感器中,进行多次测量以提高预测参数值的准确度。 可以在测量之间重新应用传感器,以降低由传感器错位引起的错误预测的可能性。 在计算预测参数值之前,可以丢弃一些测量值。 生理传感器可以具有多种模式,其中一种模式对应于多个测量过程。

    Reflection-detector sensor position indicator

    公开(公告)号:US08346330B2

    公开(公告)日:2013-01-01

    申请号:US12577670

    申请日:2009-10-12

    申请人: Marcelo Lamego

    发明人: Marcelo Lamego

    IPC分类号: A61B5/00

    摘要: A reflection-detector sensor position indicator comprises emitters that transmit light having a plurality of wavelengths. A detector outputs a sensor signal. At least one reflection detector outputs at least one sensor position signal. An attachment assembly attaches the emitters, the detector and the reflection detector onto a tissue site. A sensor-on condition indicates that the attachment assembly has positioned the emitters generally centered over a fingernail, the detector on a fingertip opposite the fingernail and the reflection detector over the fingernail. The sensor signal, in the sensor-on condition, is at least substantially responsive to the emitter transmitted light after attenuation by pulsatile blood flow perfused within a fingernail bed underneath the fingernail. The sensor position signal, in the sensor-on condition, is at least substantially responsive to the emitter transmitted light after reflection off of the fingernail.

    BLOOD PRESSURE MEASUREMENT SYSTEM
    59.
    发明申请
    BLOOD PRESSURE MEASUREMENT SYSTEM 有权
    血压测量系统

    公开(公告)号:US20120059267A1

    公开(公告)日:2012-03-08

    申请号:US13218373

    申请日:2011-08-25

    IPC分类号: A61B5/0205 A61B5/022

    摘要: A blood pressure measurement system that non-invasively determines an individual's blood pressure can include a noninvasive blood pressure sensor having an optical sensor and a motion sensor. The optical sensor can provide a photoplethysmograph signal obtained from a patient to a processor. The motion sensor can provide a motion signal to the processor responsive to motion of the patient. In one embodiment, the processor calculates or estimates the blood pressure of the patient based on the photoplethysmograph signal and the motion signal. Advantageously, the system can obtain this blood pressure measurement without an occlusive cuff, thereby reducing patient discomfort. In other implementations, the processor calculates a blood pressure-related parameter from the photoplethysmograph and motion signal. The processor can occasionally trigger an occlusive cuff measurement as this parameter changes, thereby reducing the frequency of occlusive cuff measurements.

    摘要翻译: 非侵入性地确定个人血压的血压测量系统可以包括具有光学传感器和运动传感器的无创血压传感器。 光学传感器可以提供从患者获得的光电体积描记器信号到处理器。 运动传感器可以响应于患者的运动而向处理器提供运动信号。 在一个实施例中,处理器基于光电容积描记器信号和运动信号来计算或估计患者的血压。 有利的是,该系统可以在没有闭塞的袖带的情况下获得该血压测量,从而减少患者的不适。 在其他实施方式中,处理器根据光电体积描记器和运动信号计算血压相关参数。 随着该参数的变化,处理器可以偶尔触发闭塞袖带测量,从而降低闭塞袖带测量的频率。

    INTERFERENCE DETECTOR FOR PATIENT MONITOR
    60.
    发明申请
    INTERFERENCE DETECTOR FOR PATIENT MONITOR 有权
    患者监护仪的干扰检测器

    公开(公告)号:US20110109459A1

    公开(公告)日:2011-05-12

    申请号:US12841965

    申请日:2010-07-22

    IPC分类号: G08B23/00 G01R29/26

    摘要: A system is disclosed for detecting and calculating the level of ambient and/or environmental noise, such as electromagnetic interference generated by electric power lines, ambient lights, light dimmers, television or computer displays, power supplies or transformers, and medical equipment. In some embodiments, the system performs frequency analysis on the interference signal detected by light photodetectors and determines the power of the interference signal concentrated in the analyzed frequency bands. The worst-case interference level can be determined by selecting the maximum from the computed power values. In some embodiments, the determined interference signal power can be compared with the noise tolerance of a patient monitoring system configured to reliably and non-invasively detect physiological parameters of a user. The results of the comparison can be presented to the user audio-visually. In some embodiments, the system can be used to perform spot check measurements of electromagnetic interference.

    摘要翻译: 公开了一种用于检测和计算环境和/或环境噪声的水平的系统,例如由电力线,环境光,光调光器,电视或计算机显示器,电源或变压器和医疗设备产生的电磁干扰。 在一些实施例中,系统对由光检测器检测到的干扰信号进行频率分析,并确定集中在分析频带中的干扰信号的功率。 最坏情况的干扰电平可以通过从计算的功率值中选择最大值来确定。 在一些实施例中,所确定的干扰信号功率可以与被配置为可靠且非侵入地检测用户的生理参数的患者监视系统的噪声容限进行比较。 比较的结果可以直观地呈现给用户。 在一些实施例中,该系统可用于执行电磁干扰的抽查检查测量。