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    • 2. 发明授权
    • Continuous, non-invasive technique for measuring blood pressure using impedance plethysmography
    • 使用阻抗体积描记法测量血压的连续,非侵入性技术
    • US06648828B2
    • 2003-11-18
    • US09683916
    • 2002-03-01
    • Bruce A. FriedmanRichard MederoLawrence T. HershSai Kolluri
    • Bruce A. FriedmanRichard MederoLawrence T. HershSai Kolluri
    • A61B502
    • A61B5/0285A61B5/021A61B5/02125A61B5/0295
    • Blood pressure is measured using the pulse transit time required for the blood volume pulse to propagate between two locations in an animal. Impedance plethysmography is employed to detect when the blood volume pulse occurs at one location. The plethysmograph may detect thoracic impedance to determine when the aortic heart valve opens or it may detect impedance at one location on a limb of the animal. Occurrence of the blood volume pulse at another location can be determined by impedance plethysmography or another technique, such as pulse oximetry. The calculation of cardiac stroke volume can be employed to compensate the derivation of the blood pressure for effects due to blood vessel compliance. A nonblood pressure monitor may periodically provide a reference blood pressure measurement that is used calibrate derivation of the blood pressure based on the pulse transit time.
    • 使用血液体积脉冲在动物的两个位置之间传播所需的脉搏传播时间来测量血压。 采用阻抗体积描记法检测血液体积脉搏何时出现在一个位置。 体积描记器可以检测胸部阻抗以确定主动脉瓣心脏瓣膜何时打开,或者可以在动物肢体的一个位置处检测阻抗。 可以通过阻抗体积描记法或其他技术(例如脉搏血氧测定法)来确定另一位置处的血容量脉冲的发生。 心脏搏动量的计算可用于补偿由于血管依从性引起的血压的推导。 非血压监视器可以周期性地提供参考血压测量,其用于基于脉冲传播时间来校准血压的推导。
    • 4. 发明授权
    • Method and system utilizing SpO2 plethysmograph signal to qualify NIBP pulses
    • 使用SpO2体积描记器信号来限定NIBP脉冲的方法和系统
    • US07300404B1
    • 2007-11-27
    • US11470701
    • 2006-09-07
    • Sai KolluriLawrence T. HershRichard Medero
    • Sai KolluriLawrence T. HershRichard Medero
    • A61B5/00
    • A61B5/02255A61B5/02225
    • A method and system for operating a non-invasive blood pressure monitor that utilizes an SpO2 plethysmographic signal to reduce the time required to obtain an estimation of a patient's blood pressure. During operation of the NIBP monitor, the NIBP monitor utilizes the SpO2 plethysmographic signal to determine a timing period and a deflation period for each pulse associated with the patient's heartbeat. Upon receiving an oscillation pulse, the NIBP monitor determines the oscillation amplitude during the timing period and deflates the blood pressure cuff during the deflation period immediately following the timing period. Preferably, the deflation period occurs during the same oscillation pulse used to calculate the oscillation pulse amplitude to decrease the amount of time required to obtain a blood pressure estimate from the patient.
    • 一种用于操作使用SpO 2体积描记信号的非侵入性血压监测器的方法和系统,以减少获得对患者血压的估计所需的时间。 在NIBP监视器的操作期间,NIBP监视器利用SpO 2体积描记信号来确定与患者心跳相关联的每个脉冲的定时周期和放气周期。 在接收到振荡脉冲时,NIBP监视器确定定时期间的振荡幅度,并且在定时周期之后的放气期间缩小血压袖带。 优选地,放气周期发生在用于计算振荡脉冲幅度的相同振荡脉冲期间,以减少从患者获得血压估计所需的时间量。
    • 6. 发明授权
    • Physiological-signal-analysis device for measuring a blood pressure and method
    • 用于测量血压和方法的生理信号分析装置
    • US06746403B2
    • 2004-06-08
    • US09683911
    • 2002-03-01
    • Sai KolluriLawrence T. HershRichard Medero
    • Sai KolluriLawrence T. HershRichard Medero
    • A61B502
    • A61B5/02225A61B5/021A61B5/02416A61B5/0402
    • A physiological-signal-analysis device for determining a blood pressure value of a patient and a method of operating the device. The device includes a cuff attachable to an extremity of the patient, a pneumatic system connected to the cuff that supplies a fluid to the cuff, a pressure transducer that measures the pressure signal having pressure oscillations, and a control unit connected to the pneumatic system and the pressure transducer. The control unit is operable to acquire a first oscillation having a first fiducial point, acquire a second oscillation having a second fiducial point, calculate a time interval representing a time from the first fiducial point to the second fiducial point, decide against selecting the second oscillation when the time interval is not a substantial integral multiple of a nominal oscillation period, and calculate a blood pressure value based on selected oscillations.
    • 一种用于确定患者的血压值的生理信号分析装置和操作该装置的方法。 该装置包括可连接到患者的末端的袖带,连接到袖带的气动系统,其向袖带提供流体,测量具有压力振荡的压力信号的压力传感器,以及连接到气动系统的控制单元, 压力传感器。 控制单元可操作地获取具有第一基准点的第一振荡,获取具有第二基准点的第二振荡,计算表示从第一基准点到第二基准点的时间的时间间隔,决定不选择第二振荡 当时间间隔不是标称振荡周期的实质整数倍时,并且基于所选择的振荡来计算血压值。
    • 8. 发明授权
    • Method and system utilizing SpO2 plethysmograph signal to reduce NIBP determination time
    • 方法和系统利用SpO2体积描记信号降低NIBP测定时间
    • US07462152B2
    • 2008-12-09
    • US11470698
    • 2006-09-07
    • Sai KolluriLawrence T. HershRichard MederoHeather Menshouse
    • Sai KolluriLawrence T. HershRichard MederoHeather Menshouse
    • A61B5/02
    • A61B5/02255A61B5/02225
    • A method and system for operating a non-invasive blood pressure monitor that utilizes an SpO2 plethysmographic signal to reduce the time required to obtain an estimation of a patient's blood pressure. During operation of the NIBP monitor, the NIBP monitor utilizes the SpO2 plethysmographic signal to determine a timing period and a deflation period for each pulse associated with the patient's heartbeat. Upon receiving an oscillation pulse, the NIBP monitor determines the oscillation amplitude during the timing period and deflates the blood pressure cuff during the deflation period immediately following the timing period. Preferably, the deflation period occurs during the same oscillation pulse used to calculate the oscillation pulse amplitude to decrease the amount of time required to obtain a blood pressure estimate from the patient.
    • 一种用于操作无创血压监测器的方法和系统,其利用SpO2体积描记信号来减少获得患者血压估计所需的时间。 在NIBP监测器的操作期间,NIBP监测器利用SpO2体积描记器信号确定与患者心跳相关联的每个脉冲的定时周期和放气周期。 在接收到振荡脉冲时,NIBP监视器确定定时期间的振荡幅度,并且在定时周期之后的放气期间缩小血压袖带。 优选地,放气周期发生在用于计算振荡脉冲幅度的相同振荡脉冲期间,以减少从患者获得血压估计所需的时间量。
    • 9. 发明申请
    • METHOD OF CONTROLLING INFLATION OF A CUFF IN BLOOD PRESSURE DETERMINATION
    • 控制血压在血压测定中的运动方法
    • US20080243009A1
    • 2008-10-02
    • US11694178
    • 2007-03-30
    • Lawrence T. HershSai KolluriBruce FriedmanRichard Medero
    • Lawrence T. HershSai KolluriBruce FriedmanRichard Medero
    • A61B5/02
    • A61B5/02255A61B5/02225
    • The present application discloses a method of calculating an initial inflation pressure during a blood pressure determination using an NIB system. The cuff provided with the system is inflated towards a default initial inflation pressure and a plurality of oscillometric pulses are obtained during inflation. A quick systolic pressure is estimated from a pre-defined function having a physiologically- expected shape of an oscillometric envelope fitted to oscillometric data obtained during the inflation. In an embodiment, the parameters within the function are specifically found by fitting a plurality of oscillometric pulse amplitudes along with their corresponding cuff pressures obtained during inflation to the pre-defined function. The cuff is inflated up to a calculated initial inflation pressure, which is found from the estimated quick systolic pressure. After the cuff is brought to the initial inflation pressure, deflation is begun for determining the actual systolic and diastolic pressures for output to a user.
    • 本申请公开了一种使用NIB系统计算在血压测定期间的初始充气压力的方法。 提供有系统的袖带朝向默认的初始充气压力充气,并且在充气期间获得多个示波脉冲。 从预先定义的功能估计出快速的收缩压,该功能具有适应于在充气期间获得的示波数据的示波包络的生理预期形状。 在一个实施例中,功能中的参数通过将多个示波脉冲幅度及其在充气期间获得的相应袖带压力拟合到预定义功能而具体发现。 袖带充气到计算的初始充气压力,这是从估计的快速收缩压中发现的。 在袖带被带到初始通货膨胀压力之后,开始通货紧缩来确定输出给用户的实际收缩压和舒张压。