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11.发明授权
公开(公告)号：US6083172A
公开(公告)日：2000-07-04
申请号：US137479
申请日：1998-08-20
CPC分类号： A61B5/7203 , A61B5/0075 , A61B5/024 , A61B5/02416 , A61B5/14551 , A61B5/14552 , A61B5/7207 , A61B5/725 , A61B5/7239 , 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.
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12.发明授权Method and circuit for indicating quality and accuracy of physiological measurements 有权用于指示生理测量的质量和准确度的方法和电路公开(公告)号：US07457652B2
公开(公告)日：2008-11-25
申请号：US10712895
申请日：2003-11-12
IPC分类号： A61B5/1455
CPC分类号： A61B5/14551 , A61B5/7221 , G06F19/00 , Y10T29/49117
摘要： Sensors and monitors for a physiological monitoring system having capability to indicate an accuracy of an estimated physiological condition. The sensor senses at least one physiological characteristic of a patient and is connectable to a monitor that estimates the physiological condition from signals detected by the sensor. The sensor includes a detector for detecting the signals from the patient which are indicative of the physiological characteristic. The sensor is associated with a memory configured to store data that defines at least one sensor signal specification boundary for the detected signals. The boundary is indicative of a quality of the signals and an accuracy of the physiological characteristic estimated from the signals by the monitor. The sensor further includes means for providing access to the memory to allow transmission of the data that defines the at least one sensor boundary to the monitor.
摘要翻译： 用于具有指示估计的生理状态的准确性的能力的生理监测系统的传感器和监视器。 感测器感测到患者的至少一个生理特征，并且可连接到由传感器检测到的信号估计生理状态的监视器。 传感器包括用于检测来自患者的指示生理特征的信号的检测器。 传感器与被配置为存储为检测信号定义至少一个传感器信号规范边界的数据的存储器相关联。 边界表示信号的质量以及由监视器根据信号估计的生理特性的准确度。 传感器还包括用于提供对存储器的访问以允许将限定至少一个传感器边界的数据传输到监视器的装置。
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公开(公告)号：US07130671B2
公开(公告)日：2006-10-31
申请号：US10775497
申请日：2004-02-09
IPC分类号： A61B5/00
CPC分类号： A61B5/7203 , A61B5/0075 , A61B5/024 , A61B5/02416 , A61B5/14551 , A61B5/14552 , A61B5/7207 , A61B5/7239 , A61B5/725 , G06F19/00 , H03H21/003
摘要： In a system for measuring a physiological parameter using at least one wavelength of electromagnetic energy transmitted through living tissue, a method for determining an operational status of the system. The method includes receiving a data signal from at least one sensor, determining whether the received data signal is representative of the physiological parameter by sensing whether the at least one sensor is secured to the living tissue, and generating a status signal representative of the operational status of the system based on that determination. The determination includes measuring an output level corresponding to the at least one wavelength. The determination may also include analyzing a spectrum corresponding to the at least one wavelength to determine a percentage of energy contained in a subset of the spectrum, or monitoring an amplitude of the data signal for a given interval.
摘要翻译： 在使用通过活体组织传输的至少一个波长的电磁能来测量生理参数的系统中，用于确定系统的操作状态的方法。 该方法包括从至少一个传感器接收数据信号，通过检测至少一个传感器是否固定在生物体组织上，确定接收到的数据信号是否代表生理参数，以及生成代表操作状态的状态信号 的系统基于这一决定。 确定包括测量对应于至少一个波长的输出电平。 该确定还可以包括分析与至少一个波长对应的频谱，以确定包含在频谱子集中的能量的百分比，或者在给定间隔内监视数据信号的振幅。
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14.发明授权公开(公告)号：US06463310B1
公开(公告)日：2002-10-08
申请号：US09520104
申请日：2000-03-07
申请人： David B. Swedlow , Stephen L. Daleo , Thomas J. Yorkey , Edward M. Richards , Charles Porges , Charles Stuart , Daniel M. Nemits , Russell L. Delonzor
发明人： David B. Swedlow , Stephen L. Daleo , Thomas J. Yorkey , Edward M. Richards , Charles Porges , Charles Stuart , Daniel M. Nemits , Russell L. Delonzor
IPC分类号： A61B500
CPC分类号： A61B5/14551 , A61B5/0002 , A61B5/7232 , A61B2560/045 , G06F19/00
摘要： A mechanism for storing and providing historical physiological data, such as blood oxygen saturation data, for a patient. In particular, the historical physiological data is stored in a storage medium that “travels” with the patient and is accessible wherever the patient is moved. This is achieved by storing the physiological data within a sensor assembly. At the destination site, a monitor or a device capable of interfacing with the sensor electronics can retrieve and display the data. The historical physiological data allows a clinician or medical personnel at the destination site to assess the condition of the patient for the entire time that the patient has been monitored. Various types of physiological data can be stored including, but not limited to, blood oxygen saturation, heart rate, and temperature data. Compression of the data can be performed to enhance the storage capability.
摘要翻译： 用于存储和提供患者的历史生理数据（例如血氧饱和度数据）的机制。 特别地，历史生理数据存储在与患者“行进”的存储介质中，并且可以在患者移动的任何地方进行访问。 这通过将生理数据存储在传感器组件内来实现。 在目标站点，能够与传感器电子设备连接的监视器或设备可以检索和显示数据。 历史的生理数据允许目的地的临床医生或医务人员在患者被监测的整个时间内评估患者的状况。 可以存储各种类型的生理数据，包括但不限于血氧饱和度，心率和温度数据。 可以进行压缩数据以提高存储能力。
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15.发明授权
公开(公告)号：US5853364A
公开(公告)日：1998-12-29
申请号：US660510
申请日：1996-06-07
CPC分类号： A61B5/7203 , A61B5/0075 , A61B5/024 , A61B5/02416 , A61B5/14551 , A61B5/14552 , A61B5/7207 , A61B5/725 , A61B5/7239 , 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.
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16.发明授权
公开(公告)号：US5645060A
公开(公告)日：1997-07-08
申请号：US490315
申请日：1995-06-14
申请人： Thomas J. Yorkey
发明人： Thomas J. Yorkey
IPC分类号： A61B5/00
CPC分类号： A61B5/14551 , A61B5/7207 , A61B5/7239
摘要： Motion compensation is based on analysis of intensity signals received by detectors, without separately measuring a motion signal, without providing feedback to cancel the motion signal and without attempting to mathematically eliminate the motion signal. Instead, the present invention mathematically recognizes the presence of the motion signal and recognizes a few key characteristics of the motion signal and makes corresponding assumptions. First, it is recognized that the motion/noise in each wavelength signal is proportional. Second, it is assumed that the blood pulse signal is not affected by motion.
摘要翻译： 运动补偿基于对检测器接收的强度信号的分析，而不需要单独测量运动信号，而不提供反馈以消除运动信号，而不尝试以数学方式消除运动信号。 相反，本发明在数学上识别运动信号的存在并识别运动信号的几个关键特征并作出相应的假设。 首先，认识到每个波长信号中的运动/噪声是成比例的。 其次，假设脉搏信号不受运动影响。
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17.发明授权Method and system for steerable medical device path definition and following during insertion and retraction 有权插入和缩回时可导向医疗器械路径定义和跟踪的方法和系统公开(公告)号：US08568302B2
公开(公告)日：2013-10-29
申请号：US12613768
申请日：2009-11-06
申请人： Caitlin Quance Donhowe , Amir Belson , Kristoffer John Donhowe , Kenneth Robert Krieg , Eric Michael Storne , Thomas J. Yorkey , Jun Zhang
发明人： Caitlin Quance Donhowe , Amir Belson , Kristoffer John Donhowe , Kenneth Robert Krieg , Eric Michael Storne , Thomas J. Yorkey , Jun Zhang
CPC分类号： A61B1/0051 , A61B1/00006 , A61B1/00009 , A61B1/00147 , A61B1/008 , A61B5/065 , A61B34/20 , A61B90/03 , A61B2017/003 , A61B2034/107 , A61B2034/301
摘要： Waypoints for a steerable medical device are stored as the steerable medical device is moved within a patient. The stored waypoints are an ordered sequence of locations. The ordered sequence of locations defines a safe path within the patient for moving an articulatable portion of the steerable medical device. The articulatable portion of the steerable medical device is constrained to follow the safe path as the articulatable portion moves within the patient. For example, the articulatable portion of the steerable medical device is constrained to remain within a boundary region enclosing the safe path as the articulatable portion of the steerable medical device follows the safe path.
摘要翻译： 当可转向医疗设备在患者体内移动时，存储可转向医疗设备的路标点。 存储的路点是有序的位置序列。 位置的有序序列限定了患者内的安全路径，用于移动可转向医疗装置的可铰接部分。 可转向医疗装置的可铰接部分被限制为随着可铰接部分在患者体内移动而跟随安全路径。 例如，可转向医疗设备的可铰接部分被限制为保持在包围安全路径的边界区域内，因为可转向医疗设备的可关节部分遵循安全路径。
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18.发明授权公开(公告)号：US08103325B2
公开(公告)日：2012-01-24
申请号：US11444877
申请日：2006-06-01
申请人： David Swedlow , Stephen L. Daleo , Thomas J. Yorkey , Edward M. Richards , Charles Porges , Charles Stuart , Daniel M. Nemits , Russell L. DeLonzor
发明人： David Swedlow , Stephen L. Daleo , Thomas J. Yorkey , Edward M. Richards , Charles Porges , Charles Stuart , Daniel M. Nemits , Russell L. DeLonzor
IPC分类号： A61B5/1455 , A61B5/00
CPC分类号： A61B5/14551 , A61B5/1495 , A61B5/7232 , A61B2560/045 , G06F19/00
摘要： Embodiments of the present invention relate to a sensor for facilitating detection of a physiological characteristic of a patient. Specifically, one embodiment includes a detector configured to obtain signals from the patient, the signals being indicative of the physiological characteristic and to send the signals to a monitor, and a sensor memory coupled with the sensor and separate from the monitor, the sensor memory storing patient physiological data derived by the monitor from the signals, the patient physiological data being indicative of the physiological characteristic.
摘要翻译： 本发明的实施例涉及一种便于检测患者的生理特征的传感器。 具体地，一个实施例包括检测器，其被配置为从患者获得信号，所述信号指示生理特征并将信号发送到监视器，以及与传感器耦合并与监视器分离的传感器存储器，传感器存储器存储 患者生理数据由监护仪从信号中得出，患者生理数据表示生理特征。
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公开(公告)号：US07865224B2
公开(公告)日：2011-01-04
申请号：US10964249
申请日：2004-10-12
IPC分类号： A61B5/1455 , A61B5/02
CPC分类号： A61B5/7203 , A61B5/0075 , A61B5/024 , A61B5/02416 , A61B5/14551 , A61B5/14552 , A61B5/7207 , A61B5/7239 , A61B5/725 , G06F19/00 , H03H21/003
摘要： In a physiological monitor, a method and an apparatus for determining a patient's pulse rate using data corresponding to a plurality of wavelengths of electromagnetic energy transmitted through the tissue of the patient. The method includes tracking the pulse rate in the data using an adaptive comb filter, the data having signal portions corresponding to the pulse rate and signal portions corresponding to noise, periodically calculating a frequency power spectrum of one of the wavelengths, and using the frequency power spectrum in a pulse rate calculator to determine the pulse rate or to verify the pulse rate calculated by the pulse rate calculator.
摘要翻译： 在生理监视器中，使用与通过患者组织透射的电磁能量的多个波长对应的数据来确定患者脉搏率的方法和装置。 该方法包括使用自适应梳状滤波器跟踪数据中的脉率，该数据具有对应于脉冲速率的信号部分和对应于噪声的信号部分，周期性地计算波长之一的频率功率谱，并使用频率功率 频谱计算器中确定脉搏速率或验证由脉率计算器计算的脉搏率。
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公开(公告)号：US07336983B2
公开(公告)日：2008-02-26
申请号：US11406188
申请日：2006-04-18
IPC分类号： A61B5/00
CPC分类号： A61B5/7203 , A61B5/0075 , A61B5/024 , A61B5/02416 , A61B5/14551 , A61B5/14552 , A61B5/7207 , A61B5/7239 , A61B5/725 , G06F19/00 , 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.
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