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1. 发明申请

US20140343437A1 SYSTEM AND METHOD FOR PULSE RATE CALCULATION USING A SCHEME FOR ALTERNATE WEIGHTING 有权
标题翻译：用于替代加权的方案的脉冲速率计算的系统和方法
公开(公告)号：US20140343437A1
公开(公告)日：2014-11-20
申请号：US14448152
申请日：2014-07-31
申请人： Covidien LP
发明人： Clark R. Baker, JR.
IPC分类号： A61B5/024 , A61B5/00
CPC分类号： A61B5/02427 , A61B5/0205 , A61B5/14551 , A61B5/7221
摘要： Embodiments of the present invention relate to a method for analyzing pulse data. In one embodiment, the method comprises receiving a signal containing data representing a plurality of pulses, the signal generated in response to detecting light scattered from blood perfused tissue. Further, one embodiment includes performing a pulse identification or qualification algorithm on at least a portion of the data, the pulse identification or qualification algorithm comprising at least one constant, and modifying the at least one constant based on results obtained from performing the pulse identification or qualification algorithm, wherein the results indicate that a designated number of rejected pulses has been reached.
摘要翻译：本发明的实施例涉及一种用于分析脉冲数据的方法。在一个实施例中，该方法包括接收包含表示多个脉冲的数据的信号，该信号响应于检测从血液灌注组织散射的光而产生。此外，一个实施例包括对数据的至少一部分执行脉冲识别或鉴定算法，所述脉冲识别或鉴定算法包括至少一个常数，并且基于从执行脉冲识别获得的结果修改所述至少一个常数，鉴定算法，其中结果指示已经达到指定数量的拒绝脉冲。

2. 发明申请

US20140031652A1 SELECTION OF ENSEMBLE AVERAGING WEIGHTS FOR A PULSE OXIMETER BASED ON SIGNAL QUALTIY METRICS 有权
标题翻译：基于信号质量标准选择脉冲序列的平均权重
公开(公告)号：US20140031652A1
公开(公告)日：2014-01-30
申请号：US14043560
申请日：2013-10-01
申请人： Covidien LP
发明人： Clark R. Baker, JR.
IPC分类号： A61B5/1455
CPC分类号： A61B5/14552 , A61B5/7203 , A61B5/7221
摘要： A pulse oximeter system is presently disclosed. The pulse oximeter system includes a processor and circuitry. The processor and circuitry are configured to receive light waveforms from a sensor, determine at least one signal quality metric for the light waveforms, calculate at least one weight using a continuously variable weighting function based on the at least one signal quality metric, and ensemble average the light waveforms using the at least one calculated weight.
摘要翻译：目前公开了脉搏血氧计系统。脉搏血氧计系统包括处理器和电路。处理器和电路被配置为从传感器接收光波形，确定光波形的至少一个信号质量度量，基于至少一个信号质量度量使用连续可变的加权函数来计算至少一个权重，以及整体平均所述光波形使用所述至少一个计算的重量。

3. 发明申请

US20130253331A1 METHOD AND APPARATUS FOR ESTIMATING PULSE RATE 审中-公开
标题翻译：用于估计脉冲速率的方法和装置
公开(公告)号：US20130253331A1
公开(公告)日：2013-09-26
申请号：US13894231
申请日：2013-05-14
申请人： Covidien LP
发明人： Clark R. Baker, JR. , Thomas J. Yorkey
IPC分类号： A61B5/00 , A61B5/1455 , A61B5/024
CPC分类号： A61B5/7203 , A61B5/0075 , A61B5/024 , A61B5/02416 , A61B5/14551 , A61B5/14552 , A61B5/7207 , A61B5/7239 , A61B5/725 , H03H21/003
摘要： A method and apparatus for reducing the effects of noise on a system for measuring physiological parameters, such as, for example, a pulse oximeter. The method and apparatus of the invention take into account the physical limitations on various physiological parameters being monitored when weighting and averaging a series of measurements. Varying weights are assigned different measurements, measurements are rejected, and the averaging period is adjusted according to the reliability of the measurements. Similarly, calculated values derived from analyzing the measurements are also assigned varying weights and averaged over adjustable periods. More specifically, a general class of filters such as, for example, Kalman filters, is employed in processing the measurements and calculated values. The filters use mathematical models which describe how the physiological parameters change in time, and how these parameters relate to measurement in a noisy environment. The filters adaptively modify a set of averaging weights to optimally estimate the physiological parameters.
摘要翻译：一种用于减少噪声对用于测量生理参数的系统的影响的方法和装置，例如脉搏血氧计。本发明的方法和装置考虑到当加权和平均一系列测量时监测的各种生理参数的物理限制。不同的权重被分配不同的测量，测量被拒绝，平均期间根据测量的可靠性进行调整。类似地，从分析测量得到的计算值也被赋予变化的权重并且在可调周期上平均。更具体地，在处理测量值和计算值时，采用一般的滤波器类，例如卡尔曼滤波器。过滤器使用描述生理参数如何随时间变化的数学模型，以及这些参数如何与嘈杂环境中的测量相关。滤波器自适应地修改一组平均权重以最佳地估计生理参数。

4. 发明申请

US20130159912A1 NUISANCE ALARM REDUCTION METHOD FOR THERAPEUTIC PARAMETERS 有权
标题翻译：用于治疗参数的健康报警减少方法
公开(公告)号：US20130159912A1
公开(公告)日：2013-06-20
申请号：US13763852
申请日：2013-02-11
申请人： Covidien LP
发明人： Clark R. Baker, JR.
IPC分类号： G06F3/0484
CPC分类号： G06F3/0484 , A61M16/0051 , A61M16/0063 , A61M16/024 , A61M16/12 , A61M2016/0018 , A61M2016/0039 , A61M2016/1025 , A61M2205/18 , A61M2205/505 , G16H40/63
摘要： This disclosure describes systems and methods for reducing nuisance alarms associated with monitoring non-physiological parameters in a ventilatory system. Non-physiological parameters may include, but are not limited to, parameters that are internally monitored by the ventilator based on pre-configured ranges dictated by the manufacturer, by an applicable protocol, or by the clinician. Embodiments described herein seek to mitigate nuisance alarms by basing alarm conditions, at least in part, on an integral threshold such that an alarm is not generated when a monitored parameter briefly falls outside an acceptable range by a slight degree, but such that an alarm is generated when a monitored parameter falls outside an acceptable range by a more significant magnitude and/or duration.
摘要翻译：本公开描述了用于减少与在通气系统中监测非生理参数相关联的麻烦警报的系统和方法。非生理参数可以包括但不限于由通过呼吸机内部监测的参数，所述参数基于由制造商指定的预先配置的范围，适用的协议或由临床医生指定。本文描述的实施例旨在通过将警报条件至少部分地基于积分阈值来基于警报状况来减轻妨扰警报，使得当监视的参数短暂地略微落在可接受范围之外但是使得警报是当监视的参数在可接受的范围内超出更大的幅度和/或持续时间时产生。

5. 发明申请

US20160206247A1 ADAPTIVE MOTION CORRECTION IN PHOTOPLETHYSMOGRAPHY USING REFERENCE SIGNALS 审中-公开
标题翻译：使用参考信号进行光子动力学自适应运动校正
公开(公告)号：US20160206247A1
公开(公告)日：2016-07-21
申请号：US14996471
申请日：2016-01-15
申请人： Covidien LP
发明人： Eric Morland , Clark R. Baker, JR. , Daniel Lisogurski , Rasoul Yousefi , Philip Davis , Christopher J. Meehan
IPC分类号： A61B5/00 , A61B5/024
CPC分类号： A61B5/7207 , A61B5/14551 , A61B5/725 , A61B5/7257
摘要： Systems, methods, apparatuses, and software for providing enhanced measurement and correction of physiological data are provided herein. In a first example, a physiological measurement system is configured to obtain a measured photoplethysmogram (PPG) for a patient, and obtain a reference signal for the patient measured concurrent with the measured PPG, the reference signal including noise components related to at least motion of the patient. The physiological measurement system also is configured to determine a filtered PPG from the measured PPG using at least an adaptive filter with the reference signal to reduce noise components of the measured PPG, determine a final PPG by spectrally subtracting at least a portion of the noise components of the reference signal from the filtered PPG, and identify one or more physiological metrics of the patient based on the final PPG.
摘要翻译：本文提供了用于提供增强的生理数据的测量和校正的系统，方法，装置和软件。在第一示例中，生理测量系统被配置为获得用于患者的测量的光电容积图（PPG），并且获得与测量的PPG同时测量的患者的参考信号，所述参考信号包括与至少运动相关的噪声分量患者。生理测量系统还被配置为使用至少一个具有参考信号的自适应滤波器从所测量的PPG中确定经滤波的PPG，以减少所测量的PPG的噪声分量，通过频谱减去噪声分量的至少一部分来确定最终PPG 来自经滤波的PPG的参考信号，并且基于最终的PPG识别患者的一个或多个生理指标。

6. 发明申请

US20150230736A1 PATHLENGTH ENHANCEMENT OF OPTICAL MEASUREMENT OF PHYSIOLOGICAL BLOOD PARAMETERS 审中-公开
标题翻译：生物学血液参数光学测量的程序增强
公开(公告)号：US20150230736A1
公开(公告)日：2015-08-20
申请号：US14704517
申请日：2015-05-05
申请人： Covidien LP
发明人： Youzhi Li , Clark R. Baker, JR.
IPC分类号： A61B5/1455 , A61B5/00 , A61B5/026
CPC分类号： A61B5/1455 , A61B5/0261 , A61B5/14551 , A61B5/6803 , A61B5/6844 , A61B5/7203 , A61B5/7221 , A61B5/7246 , A61B5/7278 , A61B2562/0238 , A61B2562/0242 , A61B2576/00
摘要： Systems and methods for measuring a physiological parameter of tissue in a patient are provided herein. In a first example, a method of measuring a physiological parameter of blood in a patient is provided. The method includes emitting at least two optical signals for propagation through tissue of the patient, detecting the optical signals after propagation, identifying propagation pathlengths of the optical signals, and identifying detected intensities of the optical signals. The method also includes processing at least the propagation pathlengths to scale the detected intensities for determination of a value of the physiological parameter.
摘要翻译：本文提供了用于测量患者组织生理参数的系统和方法。在第一示例中，提供了测量患者血液的生理参数的方法。该方法包括发射至少两个用于通过患者组织传播的光信号，检测传播后的光信号，识别光信号的传播路径长度以及识别光信号的检测强度。该方法还包括处理至少传播路径长度以缩放所检测的强度以确定生理参数的值。

7. 发明申请

US20180146897A1 SYSTEMS AND METHODS FOR DETERMINING WHETHER REGIONAL OXIMETRY SENSORS ARE PROPERLY POSITIONED 审中-公开
公开(公告)号：US20180146897A1
公开(公告)日：2018-05-31
申请号：US15867208
申请日：2018-01-10
申请人： Covidien LP
发明人： Clark R. Baker, JR.
IPC分类号： A61B5/1495 , A61B5/00 , A61B5/1455
CPC分类号： A61B5/1495 , A61B5/14551 , A61B5/684 , A61B5/7221
摘要： Methods and systems are presented for determining whether a regional oximetry sensor is properly positioned on a subject. First and second metric values may be determined based on respective first and second light signals. The first and second metric values and a relationship between the first and second metrics are used to determine whether the sensor is properly positioned on the subject. The first and second metrics may form a pair of metrics, and whether the sensor is properly positioned on the subject may be determined based on whether the pair of metrics falls within a sensor-on region. In some embodiments, a plurality of metrics may be determined based on a plurality of received physiological signals. The plurality of metrics may be combined, using, for example, a neural network, to determine whether the regional oximetry sensor is properly positioned on a subject.

8. 发明申请

US20160206245A1 ASYMMETRIC GAIN OF CAPACITIVE SENSORS FOR MEASURING PHYSIOLOGICAL PARAMETERS 审中-公开
标题翻译：用于测量生理参数的电容式传感器的不对称增益
公开(公告)号：US20160206245A1
公开(公告)日：2016-07-21
申请号：US14996438
申请日：2016-01-15
申请人： Covidien LP
发明人： Eric Morland , Christopher J. Meehan , Philip Davis , Tim Fries , Daniel Lisogurski , Clark R. Baker, JR. , Rasoul Yousefi
IPC分类号： A61B5/00 , A61B5/1455 , A61B5/053
CPC分类号： A61B5/721 , A61B5/053 , A61B5/14552
摘要： Systems, methods, sensors, and software for providing enhanced measurement and correction of physiological data are provided herein. In one example, a capacitive sensor of a measurement system is positioned onto tissue of a patient. The capacitive sensor includes one or more conductive elements with associated gain properties that are positioned near optical sensor elements proximate to the tissue of the patient, the optical sensor elements positioned to measure a photoplethysmogram (PPG) for the tissue. The measurement system drives the capacitive sensor and measures capacitance signals associated with the capacitance sensor. The measurement system corrects for at least motion noise in the PPG using the capacitance signals.
摘要翻译：本文提供了用于提供增强的生理数据测量和校正的系统，方法，传感器和软件。在一个示例中，将测量系统的电容传感器定位在患者的组织上。电容传感器包括具有相关联的增益特性的一个或多个导电元件，其位于靠近患者组织的光学传感器元件附近，光学传感器元件被定位成测量组织的光电积累图（PPG）。测量系统驱动电容传感器并测量与电容传感器相关的电容信号。测量系统使用电容信号校正PPG中的至少运动噪声。

9. 发明申请

US20150173687A1 METHODS AND SYSTEMS FOR POWER OPTIMIZATION IN A MEDICAL DEVICE 有权
标题翻译：医疗器械功率优化的方法与系统
公开(公告)号：US20150173687A1
公开(公告)日：2015-06-25
申请号：US14634514
申请日：2015-02-27
申请人： Covidien LP
发明人： Daniel Lisogurski , Clark R. Baker, JR.
IPC分类号： A61B5/00 , A61B5/1455 , A61B5/024
CPC分类号： A61B5/7285 , A61B5/021 , A61B5/02416 , A61B5/02433 , A61B5/14551 , A61B5/746
摘要： A physiological monitoring system may use photonic signals to determine physiological parameters. The system may vary parameters of a light drive signal used to generate the photonic signal from a light source such that power consumption is reduced or optimized. Parameters may include light intensity, firing rate, duty cycle, other suitable parameters, or any combination thereof. In some embodiments, the system may use information from a first light source to generate a light drive signal for a second light source. In some embodiments, the system may vary parameters in a way substantially synchronous with physiological pulses, for example, cardiac pulses. In some embodiments, the system may vary parameters in response to an external trigger.
摘要翻译：生理监测系统可以使用光子信号来确定生理参数。该系统可以改变用于从光源产生光子信号的光驱动信号的参数，从而降低或优化功耗。参数可以包括光强度，燃烧速率，占空比，其他合适的参数，或其任何组合。在一些实施例中，系统可以使用来自第一光源的信息来产生用于第二光源的光驱动信号。在一些实施例中，系统可以以与生理脉冲（例如心脏脉冲）基本同步的方式改变参数。在一些实施例中，系统可以响应于外部触发而改变参数。

10. 发明申请

US20140180046A1 METHOD AND SYSTEM FOR MONITORING INTRACRANIAL PRESSURE 审中-公开
标题翻译：监测压力的方法和系统
公开(公告)号：US20140180046A1
公开(公告)日：2014-06-26
申请号：US14195535
申请日：2014-03-03
申请人： COVIDIEN LP
发明人： Shannon E. Campbell , Clark R. Baker, JR.
IPC分类号： A61B5/03 , A61B5/00 , A61B5/0205
CPC分类号： A61B5/031 , A61B5/0205 , A61B5/1455 , A61B5/6814
摘要： Embodiments of the present invention relate to a system and method for monitoring intracranial pressure. Embodiments of the present invention include emitting an electromagnetic wavelength into forehead tissue of a patient and detecting characteristics of the electromagnetic wavelength after the electromagnetic wavelength has been scattered by the tissue. The characteristics may include variations in the electromagnetic wavelength corresponding to a pulse. Further, embodiments of the present invention include analyzing the variations to identify venous pulsations, and determining whether intracranial pressure is elevated in the patient based on a correlation between the venous pulsations and levels of intracranial pressure.
摘要翻译：本发明的实施例涉及一种用于监测颅内压的系统和方法。本发明的实施例包括将电磁波长发射到患者的前额组织中，并且在电磁波长被组织散射之后检测电磁波长的特性。特征可以包括对应于脉冲的电磁波长的变化。此外，本发明的实施例包括分析变异以识别静脉脉动，并且基于静脉脉动与颅内压水平之间的相关性来确定患者中颅内压是否升高。

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