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1. 发明授权

US08108039B2 Method and system for acquiring biosignals in the presence of HF interference 有权
标题翻译：在存在HF干扰的情况下获取生物信号的方法和系统
公开(公告)号：US08108039B2
公开(公告)日：2012-01-31
申请号：US11827906
申请日：2007-07-13
申请人： Thomas V. Saliga , Stephane Bibian , Tatjana Zikov
发明人： Thomas V. Saliga , Stephane Bibian , Tatjana Zikov
IPC分类号： A61B5/00 , A61B5/04
CPC分类号： A61B5/7217 , A61B5/04004 , A61B5/0428 , A61B5/0476 , A61B5/0488 , A61B5/0496 , A61B5/4839 , A61B5/7221 , A61B5/725 , A61B18/1402 , A61B2018/00601 , A61B2018/00839 , A61B2018/1412 , G01R29/26
摘要： The present invention, herein is a method and apparatus that significantly limits the effect of high frequency (“HF”) interferences on acquired electro-physiological signals, such as the EEG and EMG. Preferably, this method comprises of two separate electronic circuitries and steps or electronics for processing the signals. One circuit is used to block the transmission of HF interferences to the instrumentation amplifiers. It is comprised of a front-end active filter, a low frequency electromagnetic interference (“EMI”) shield, and an isolation barrier interface which isolates the patient from earth ground. The second circuit is used to measure the difference in potential between the two isolated sides of the isolation barrier. This so-called “cross-barrier” voltage is directly representative of the interference level that the instrumentation amplifier is subjected to. This circuit is used to confirm that the acquired signals are not corrupted by the interference.
摘要翻译：本发明是一种显着限制高频（“HF”）干扰对所获得的电生理信号如EEG和EMG的影响的方法和装置。优选地，该方法包括用于处理信号的两个单独的电子电路和步骤或电子装置。一个电路用于阻止HF干扰对仪表放大器的传输。它由前端有源滤波器，低频电磁干扰（“EMI”）屏蔽以及将患者与地面隔离的隔离屏障接口组成。第二电路用于测量隔离屏障的两个隔离侧之间的电位差。这种所谓的“交叉屏障”电压直接代表了仪表放大器受到的干扰电平。该电路用于确认所采集的信号没有被干扰破坏。

2. 发明申请

US20090018429A1 Method and system for acquiring biosignals in the presence of HF interference 有权
标题翻译：在存在HF干扰的情况下获取生物信号的方法和系统
公开(公告)号：US20090018429A1
公开(公告)日：2009-01-15
申请号：US11827906
申请日：2007-07-13
申请人： Thomas V. Saliga , Stephane Bibian , Tatjana Zikov
发明人： Thomas V. Saliga , Stephane Bibian , Tatjana Zikov
IPC分类号： A61B5/04
CPC分类号： A61B5/7217 , A61B5/04004 , A61B5/0428 , A61B5/0476 , A61B5/0488 , A61B5/0496 , A61B5/4839 , A61B5/7221 , A61B5/725 , A61B18/1402 , A61B2018/00601 , A61B2018/00839 , A61B2018/1412 , G01R29/26
摘要： The present invention, herein is a method and apparatus that significantly limits the effect of high frequency (“HF”) interferences on acquired electro-physiological signals, such as the EEG and EMG. Preferably, this method comprises of two separate electronic circuitries and steps or electronics for processing the signals. One circuit is used to block the transmission of HF interferences to the instrumentation amplifiers. It is comprised of a front-end active filter, a low frequency electromagnetic interference (“EMI”) shield, and an isolation barrier interface which isolates the patient from earth ground. The second circuit is used to measure the difference in potential between the two isolated sides of the isolation barrier. This so-called “cross-barrier” voltage is directly representative of the interference level that the instrumentation amplifier is subjected to. This circuit is used to confirm that the acquired signals are not corrupted by the interference.
摘要翻译：本发明是一种显着限制高频（“HF”）干扰对所获得的电生理信号如EEG和EMG的影响的方法和装置。优选地，该方法包括用于处理信号的两个单独的电子电路和步骤或电子装置。一个电路用于阻止HF干扰对仪表放大器的传输。它由前端有源滤波器，低频电磁干扰（“EMI”）屏蔽以及将患者与地面隔离的隔离屏障接口组成。第二电路用于测量隔离屏障的两个隔离侧之间的电位差。这种所谓的“交叉屏障”电压直接代表了仪表放大器受到的干扰电平。该电路用于确认所采集的信号没有被干扰破坏。

3. 发明申请

US20110295142A1 Detector for identifying physiological artifacts from physiological signals and method 审中-公开
标题翻译：用于从生理信号和方法识别生理伪影的检测器
公开(公告)号：US20110295142A1
公开(公告)日：2011-12-01
申请号：US13104167
申请日：2011-05-10
申请人： Niranjan Chakravarthy , Stephane Bibian , Tatjana Zikov
发明人： Niranjan Chakravarthy , Stephane Bibian , Tatjana Zikov
IPC分类号： A61B5/0476
CPC分类号： A61B5/0476 , A61B5/4094 , A61B5/4812 , A61B5/7203 , A61B5/721 , A61B5/7221
摘要： The present invention relates to a physiological monitor and system, particularly to an electroencephalogram (EEG) monitor and system, and a method of detecting the presence and absence of artifacts and possibly removing artifacts from an EEG, other physiological signal or sensor signal without corrupting or compromising the signal. The accurate, real-time detection of the presence or absence of artifacts and removal of artifacts in EEG or other signals allows for increased reliability in the efficacy of those signals. The strategy of rejecting artifact-corrupted EEG can result in unacceptable data loss, and asking subjects to minimize movements in order to minimize artifacts is not always feasible. The present invention allows for increased accuracy in detection and removal of artifacts from physiological signals, substantially in real time, and without loss or corruption of signal or data in order to increase the accuracy of such signals for diagnosis and treatment purposes.
摘要翻译：本发明涉及一种生理监视器和系统，特别涉及脑电图（EEG）监视器和系统，以及一种检测伪影的存在和不存在以及可能从脑电图，其他生理信号或传感器信号中除去伪像而不破坏或妥协信号。在脑电图或其他信号中准确，实时地检测伪像的存在或不存在以及去除伪影，可以提高这些信号的功效的可靠性。拒绝人为损坏的脑电图的策略可能导致不可接受的数据丢失，并且要求受试者最小化移动以最小化伪影并不总是可行的。本发明允许基本上实时地检测和从生理信号中去除伪影，并且不会丢失或破坏信号或数据，从而提高这些信号的诊断和处理目的的准确性。

4. 发明授权

US07672717B1 Method and system for the denoising of large-amplitude artifacts in electrograms using time-frequency transforms 有权
标题翻译：使用时频变换去除电磁图中大幅度伪影的方法和系统
公开(公告)号：US07672717B1
公开(公告)日：2010-03-02
申请号：US10968348
申请日：2004-10-19
申请人： Tatjana Zikov , Stephane Bibian , Guy Albert Dumont , Mihai Huzmezan , Craig Robert Ries
发明人： Tatjana Zikov , Stephane Bibian , Guy Albert Dumont , Mihai Huzmezan , Craig Robert Ries
IPC分类号： A61B5/04 , A61B5/05
CPC分类号： A61B5/0476 , A61B5/0496 , A61B5/726
摘要： The present invention relates to a method of signal processing of electrograms for use in medical devices, preferably by time-frequency transforms. The present invention additionally relates to a system for receiving and analyzing such signals. The present invention preferably is a method utilizing the time-frequency transforms, such as wavelet transforms, for the purpose of artifact removal from EGs. These transforms decompose a signal in both time and frequency domains, and therefore, are well suited for non-stationary signal analysis. As a result, dissimilar signal features are well localized both in time and frequency, which potentially provides a good separation between the signal of interest and artifacts. This particularly applies to large-amplitude artifacts corrupting EGs.
摘要翻译：本发明涉及一种信号处理方法，用于医疗装置中使用的电描记图，优选地通过时频变换。本发明还涉及一种用于接收和分析这些信号的系统。本发明优选地是利用诸如小波变换的时间 - 频率变换来从EG去除人造物的目的的方法。这些变换在时域和频域都分解信号，因此非常适合于非平稳信号分析。因此，不同的信号特征在时间和频率上都很好地定位，这可能在感兴趣的信号和伪像之间提供良好的分离。这特别适用于破坏EGs的大幅度伪影。

5. 发明授权

US09037225B1 Method and system for acquiring biosignals during delivery of anesthesia or sedation in the presence of HF interference 有权
标题翻译：在存在HF干扰的情况下麻醉或镇静期间获取生物信号的方法和系统
公开(公告)号：US09037225B1
公开(公告)日：2015-05-19
申请号：US13335256
申请日：2011-12-22
申请人： Thomas V. Saliga , Stephane Bibian , Tatjana Zikov
发明人： Thomas V. Saliga , Stephane Bibian , Tatjana Zikov
IPC分类号： A61B5/04 , A61B5/0476 , G01R29/26
CPC分类号： A61B5/7217 , A61B5/04004 , A61B5/0428 , A61B5/0476 , A61B5/0488 , A61B5/0496 , A61B5/4839 , A61B5/7221 , A61B5/725 , A61B18/1402 , A61B2018/00601 , A61B2018/00839 , A61B2018/1412 , G01R29/26
摘要： The present invention, herein is a method and apparatus that significantly limits the effect of high frequency (“HF”) interferences on acquired electro-physiological signals, such as the EEG and EMG. Preferably, this method comprises of two separate electronic circuitries and steps or electronics for processing the signals. One circuit is used to block the transmission of HF interferences to the instrumentation amplifiers. It is comprised of a front-end active filter, a low frequency electromagnetic interference (“EMI”) shield, and an isolation barrier interface which isolates the patient from earth ground. The second circuit is used to measure the difference in potential between the two isolated sides of the isolation barrier. This so-called “cross-barrier” voltage is directly representative of the interference level that the instrumentation amplifier is subjected to. This circuit is used to confirm that the acquired signals are not corrupted by the interference.
摘要翻译：本发明是一种显着限制高频（“HF”）干扰对所获得的电生理信号如EEG和EMG的影响的方法和装置。优选地，该方法包括用于处理信号的两个单独的电子电路和步骤或电子装置。一个电路用于阻止HF干扰对仪表放大器的传输。它由前端有源滤波器，低频电磁干扰（“EMI”）屏蔽以及将患者与地面隔离的隔离屏障接口组成。第二电路用于测量隔离屏障的两个隔离侧之间的电位差。这种所谓的“交叉屏障”电压直接代表了仪表放大器受到的干扰电平。该电路用于确认所采集的信号没有被干扰破坏。

6. 发明授权

US11337633B1 Method and system for electrode impedance measurement 有权
公开(公告)号：US11337633B1
公开(公告)日：2022-05-24
申请号：US15966039
申请日：2018-04-30
申请人： Stephane Bibian , Tatjana Zikov
发明人： Stephane Bibian , Tatjana Zikov
IPC分类号： A61B5/291 , A61B5/00 , A61B5/053
摘要： The present invention relates to measuring electrical impedance, and particularly to measuring impedance of electrodes used to acquire physiological signals. The measurement of electrode impedance is typically performed to ensure proper electrode-to-skin contact, and thus verify the quality of the acquired signals. Electrode-to-skin contact impedance has also clinical utility for monitoring, diagnosis, prognosis or treatment, as it can be used to measure skin conductivity, which is function of physiological processes. The present invention relates in particular to a substantially continuous method for performing such measurement. The measurement is performed in such a way that it does not affect the bioband, the range (or ranges) of frequencies that contains components used for diagnostic, prognostic, triage, and/or treatment purposes. The present invention therefore performs this impedance measurement without affecting the physiological signal while allowing for uninterrupted monitoring of said signal.

7. 发明申请

US20080294063A1 Method and apparatus for the estimation of anesthetic depth using wavelet analysis of the electroencephalogram 有权
标题翻译：用脑电图小波分析估算麻醉深度的方法和装置
公开(公告)号：US20080294063A1
公开(公告)日：2008-11-27
申请号：US12148151
申请日：2008-04-17
申请人： Stephane Bibian , Tatjana Zikov , Guy Albert Dumont , Craig Robert Ries , Ernest Puil , Hosaain Cyrus Ahimadi , Mihai Huzmezan , Bernard Ansell MacLeod
发明人： Stephane Bibian , Tatjana Zikov , Guy Albert Dumont , Craig Robert Ries , Ernest Puil , Hosaain Cyrus Ahimadi , Mihai Huzmezan , Bernard Ansell MacLeod
IPC分类号： A61B5/0476
CPC分类号： A61B5/4821 , A61B5/048 , A61B5/4035 , A61B5/7217 , A61B5/726 , A61B5/7267
摘要： A method and apparatus to monitor the neurologic state of a patient undergoing general anesthesia is provided. Previous automated systems to monitor the neurologic state of a patient undergoing general anesthesia involve a significant time delay between the patients true hypnotic state and the computed indices. The present invention reduces this time delay by using a different analysis technique applied to spontaneous EEG. A wavelet decomposition and statistical analysis of the observed EEG is conducted and compared to reference data to provide a numerical indicator. In addition, this indicator is more consistent with the patient's loss of consciousness indicated by the loss of count event than previous systems.
摘要翻译：提供了一种监测患有全身麻醉的患者的神经状态的方法和装置。以前的自动化系统来监测经历全身麻醉的患者的神经系统状态，包括患者真正催眠状态和计算出的指数之间的显着时间延迟。本发明通过使用应用于自发性EEG的不同分析技术来减少该时间延迟。进行观察脑电图的小波分解和统计分析，并与参考数据进行比较以提供数值指标。此外，该指标与以前系统的计数事件丢失所表示的患者意识丧失更为一致。

8. 发明授权

US11109789B1 Field deployable brain monitor and method 有权
公开(公告)号：US11109789B1
公开(公告)日：2021-09-07
申请号：US13962533
申请日：2013-08-08
申请人： Stéphane Bibian , Tatjana Zikov , Sankar Barua
发明人： Stéphane Bibian , Tatjana Zikov , Sankar Barua
IPC分类号： A61B5/372 , A61B5/291
摘要： A system and method for using electroencephalographic (EEG) signals to monitor brain function, preferably detect occurrence of traumatic brain injury (TBI) to screen, assess, and potentially provide mitigating treatment to improve short and long term adverse outcomes of mild TBI (mTBI) and TBI. The system and method provides a readily available tool to assist in accurate and objective assessment of subjects with TBI, immediately at the point of injury (POI), during transportation, or upon arrival at a care facility, that preferably is applicable without advanced training or expertise.

9. 发明授权

US09554721B1 Seizure detector, brain dysfunction monitor and method 有权
标题翻译：癫痫检测仪，脑功能障碍监测仪及方法
公开(公告)号：US09554721B1
公开(公告)日：2017-01-31
申请号：US12148815
申请日：2008-04-23
申请人： Tatjana Zikov , Stéphane Bibian , Mohammad Modarres
发明人： Tatjana Zikov , Stéphane Bibian , Mohammad Modarres
IPC分类号： A61B5/04 , A61B5/0476 , A61B5/048
CPC分类号： A61B5/0476 , A61B5/0006 , A61B5/04001 , A61B5/04012 , A61B5/048 , A61B5/1128 , A61B5/4094 , A61B5/4839 , A61B5/721 , A61B5/7235 , A61B5/743 , A61N1/36064
摘要： The present invention relates to a brain dysfunction and seizure detector monitor and system, and a method of detecting brain dysfunction and/or seizure of a subject. The various embodiments of the system of the present invention were developed for the brain activity and preferably EEG monitoring of a single patient or multiple patients. Preferably, the system or monitor of the present invention also includes one or more seizure detection algorithms. The analysis method is specifically optimized to amplify abnormal brain activity and minimize normal background activity. This analysis yields a seizure index whose value is directly related to the current presence of ictal activity in the signal. In addition, a seizure probability index based on historical values of the aforementioned seizure index, is derived for diagnostic purposes. The seizure probability index quantifies the probability that the patient has exhibited abnormal brain activity since the beginning of the recording. The real-time seizure index, and the historical seizure probability index, can be used in the context of an emergency and/or clinical situation to assess the status and well being of a patient's brain, or can be used to automatically administer treatment to stop the seizure before clinical signs appear.
摘要翻译：本发明涉及脑功能障碍和癫痫发作检测器监测和系统，以及检测受试者脑功能障碍和/或发作的方法。本发明的系统的各种实施方案是针对脑活动而开发的，优选地对单个患者或多个患者进行EEG监测。优选地，本发明的系统或监视器还包括一个或多个发作检测算法。分析方法被特别优化，以扩大异常大脑活动并最小化正常的背景活动。该分析产生一个缉获指数，其价值与信号中当前存在的动作直接相关。此外，基于上述扣押指数的历史值的缉获概率指数被推导出用于诊断目的。癫痫发作概率指数量化自记录开始以来患者表现出异常脑活动的可能性。可以在紧急情况和/或临床情况的情况下使用实时癫痫发作指数和历史发作概率指数来评估患者的大脑的状态和健康状况，或者可以用于自动管理治疗停止临床前出现癫痫发作。

10. 发明授权

US07603168B2 Method and apparatus for the estimation of anesthesia depth 有权
标题翻译：估计麻醉深度的方法和装置
公开(公告)号：US07603168B2
公开(公告)日：2009-10-13
申请号：US12148151
申请日：2008-04-17
申请人： Stéphane Bibian , Tatjana Zikov , Guy Albert Dumont , Craig Robert Ries , Ernest Puil , Hosaain Cyrus Ahmadi , Mihai Huzmezan , Bernard Ansell MacLeod
发明人： Stéphane Bibian , Tatjana Zikov , Guy Albert Dumont , Craig Robert Ries , Ernest Puil , Hosaain Cyrus Ahmadi , Mihai Huzmezan , Bernard Ansell MacLeod
IPC分类号： A61B5/04
CPC分类号： A61B5/4821 , A61B5/048 , A61B5/4035 , A61B5/7217 , A61B5/726 , A61B5/7267
摘要： A method and apparatus to monitor and control the anesthesia state of a patient undergoing general anesthesia is provided. Previous automated systems to monitor the anesthesia state of a patient undergoing general anesthesia involve a significant time delay between the patient's true anesthesia state and the computed indices. The present invention reduces this time delay by using a novel analysis technique applied to spontaneous electrophysiological activity. A transformation and statistical analysis of the observed electrophysiological activity is conducted and compared to reference data to provide numerical indicators. In addition, these indicators are consistent with the levels of depression of patients CNS and ANS states. This method is illustrated in detail by CNS monitoring of electroencephalogram signals.
摘要翻译：提供了一种用于监测和控制进行全身麻醉的患者的麻醉状态的方法和装置。以前的自动系统监测患者进行全身麻醉的麻醉状态涉及患者真实麻醉状态与计算出的指数之间的显着时间延迟。本发明通过使用应用于自发电生理活动的新型分析技术来减少该时间延迟。对观察到的电生理活动进行转化和统计分析，并与参考数据进行比较以提供数值指标。此外，这些指标与患者CNS和ANS状态的抑郁水平一致。 CNS对脑电图信号的监测详细说明了该方法。

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