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81. 发明授权

US09993171B2 Automated screening methods and apparatuses for implantable medical devices 有权
公开(公告)号：US09993171B2
公开(公告)日：2018-06-12
申请号：US15001976
申请日：2016-01-20
申请人： CAMERON HEALTH INC.
发明人： Qi An , Krzysztof Z. Siejko , Deepa Mahajan
IPC分类号： A61B5/02 , A61B5/0402 , A61B5/04 , A61B7/02 , A61B5/021 , A61B5/1455 , A61B5/025 , A61B5/0456 , A61B5/0472 , A61B5/00 , A61B7/00
CPC分类号： A61B5/0402 , A61B5/021 , A61B5/025 , A61B5/04011 , A61B5/04012 , A61B5/0456 , A61B5/0472 , A61B5/14551 , A61B5/4848 , A61B7/00 , A61B7/02 , A61B2505/05 , A61B2560/0223
摘要： Automated pre-implant screening for candidate recipients of implantable medical devices. A set of cutaneous electrodes placed on a patient transcutaneously capture a cardiac signal using a screening device coupled to the electrodes. A first beat rate may be determined by identifying individual R-waves, QRS complexes or cardiac cycles from the captured cardiac signal using the cutaneous electrodes. A second beat rate may be calculated using one of several different methods, for example, by optical measurement, by monitoring heart sounds, by a second electric cardiac signal analysis, or by using an implanted device. The rates are compared to one another and, if a match is identified, the patient is deemed well suited to receive a particular device.

82. 发明授权

US09764152B2 Multiple electrode vectors for implantable cardiac treatment devices 有权
公开(公告)号：US09764152B2
公开(公告)日：2017-09-19
申请号：US15138674
申请日：2016-04-26
申请人： CAMERON HEALTH INC
发明人： Jay A. Warren , Gust H. Bardy
IPC分类号： A61N1/00 , A61N1/39 , A61B5/0424 , A61N1/362 , A61B5/00 , A61N1/37 , A61B5/04 , A61B5/042
CPC分类号： A61N1/3925 , A61B5/04011 , A61B5/042 , A61B5/0424 , A61B5/7203 , A61B5/7207 , A61N1/3622 , A61N1/3706 , A61N1/3987
摘要： The implantable cardiac treatment system of the present invention is capable of choosing the most appropriate electrode vector to sense within a particular patient. In certain embodiments, the implantable cardiac treatment system determines the most appropriate electrode vector for continuous sensing based on which electrode vector results in the greatest signal amplitude, or some other useful metric such as signal-to-noise ratio (SNR). The electrode vector possessing the highest quality as measured using the metric is then set as the default electrode vector for sensing. Additionally, in certain embodiments of the present invention, a next alternative electrode vector is selected based on being generally orthogonal to the default electrode vector. In yet other embodiments of the present invention, the next alternative electrode vector is selected based on possessing the next highest quality metric after the default electrode vector. In some embodiments, if analysis of the default vector is ambiguous, the next alternative electrode vector is analyzed to reduce ambiguity.

83. 发明授权

US09763619B2 Methods and devices for accurately classifying cardiac activity 有权
公开(公告)号：US09763619B2
公开(公告)日：2017-09-19
申请号：US14996423
申请日：2016-01-15
申请人： CAMERON HEALTH INC
发明人： Jay A. Warren , Rick Sanghera , Venugopal Allavatam , Surekha Palreddy
IPC分类号： A61B5/04 , A61B5/00 , A61B5/0468 , A61B5/0452 , A61N1/37 , A61N1/365 , A61B5/042 , A61B5/046 , A61B5/0464 , A61N1/362 , A61N1/39
CPC分类号： A61B5/4836 , A61B5/04012 , A61B5/0422 , A61B5/0452 , A61B5/04525 , A61B5/046 , A61B5/0464 , A61B5/0468 , A61B5/7203 , A61B5/7221 , A61B5/726 , A61B5/7264 , A61N1/3621 , A61N1/36514 , A61N1/36592 , A61N1/37 , A61N1/3987
摘要： Methods, systems, and devices for signal analysis in an implanted cardiac monitoring and treatment device such as an implantable cardioverter defibrillator. In some examples, captured data including detected events is analyzed to identify likely overdetection of cardiac events. In some illustrative examples, when overdetection is identified, data may be modified to correct for overdetection, to reduce the impact of overdetection, or to ignore overdetected data. Several examples emphasize the use of morphology analysis using correlation to static templates and/or inter-event correlation analysis.

84. 发明授权

US09579065B2 Cardiac signal vector selection with monophasic and biphasic shape consideration 有权
标题翻译：心脏信号矢量选择与单相和双相形状考虑
公开(公告)号：US09579065B2
公开(公告)日：2017-02-28
申请号：US14204478
申请日：2014-03-11
申请人： Cameron Health, Inc.
发明人： Venugopal Allavatam , Rick Sanghera , Mark R. Schroeder
IPC分类号： A61B5/0452 , A61B5/00 , A61B5/04 , A61B5/042 , A61N1/37
CPC分类号： A61B5/7221 , A61B5/04011 , A61B5/0422 , A61N1/3702
摘要： Systems, methods and non-transient software media for performing sensing vector selection in an implantable cardiac device by assessing biphasic or monophasic characteristics of the cardiac signal in vectors under analysis. A factor associated with the biphasic or monophasic nature of the cardiac signal, as seen from a given sensing vector, can be inserted into the assessment of which of several available sensing vectors is considered “best” for purposes of cardiac signal analysis. Additional factors may be considered beyond the biphasic or monophasic nature including the quantity of turning points or inflections and amplitude variability.
摘要翻译：用于通过评估在分析载体中的心脏信号的双相或单相特征来在可植入心脏装置中进行感测向量选择的系统，方法和非瞬态软件介质。与心脏信号的双相或单相性质相关的因素，从给定的感测向量可以看出，可以被插入评估几个可用感测向量哪一个被认为是“最好的”心脏信号分析的目的。可以考虑超出双相或单相性质的附加因素，包括转折点或拐点的数量和振幅变化。

85. 发明授权

US09451893B2 Calculation of self-correlation in an implantable cardiac device 有权
标题翻译：可植入心脏装置中的自相关计算
公开(公告)号：US09451893B2
公开(公告)日：2016-09-27
申请号：US14819889
申请日：2015-08-06
申请人： CAMERON HEALTH, INC.
发明人： Krzysztof Z. Siejko , Paul Huelskamp
IPC分类号： A61B5/0452 , A61B5/042 , A61B5/04 , A61N1/39 , A61B5/0456 , A61B5/00 , G06F17/16 , A61N1/37 , A61B5/0245 , A61B5/046 , A61B5/0464
CPC分类号： A61B5/04012 , A61B5/0245 , A61B5/04011 , A61B5/04014 , A61B5/0422 , A61B5/04525 , A61B5/0456 , A61B5/046 , A61B5/0464 , A61B5/4836 , A61B5/686 , A61B5/7246 , A61N1/3704 , A61N1/3925 , A61N1/3956 , A61N1/3987 , G06F17/11 , G06F17/16 , G06F19/3418 , G16H10/60 , G16H40/67
摘要： Self-correlation enhancements and implementations are described. In particular, certain examples demonstrate the analytical tools to reduce the computational burden of generating a self-correlation function within an implantable medical device. Peak selector and tracking analysis are also included as secondary elements for identifying and generating confidence in rate estimates based on the self-correlation function. The approach may enable an alternative calculation of cardiac rate in an implantable medical device as a stand-alone rate detector or as a double-check of other rate calculations.
摘要翻译：描述了自相关增强和实现。特别地，某些实例展示了降低在可植入医疗设备内产生自相关功能的计算负担的分析工具。峰值选择器和跟踪分析也被包括作为辅助元件，用于基于自相关函数识别和产生速率估计的置信度。该方法可以使得在可植入医疗装置中作为独立速率检测器或作为其他速率计算的双重检查来替代地计算心率。

86. 发明申请

US20160270681A1 SYSTEMS AND METHODS FOR SENSING VECTOR SELECTION IN AN IMPLANTABLE MEDICAL DEVICE 审中-公开
标题翻译：用于在可植入医疗装置中感测矢量选择的系统和方法
公开(公告)号：US20160270681A1
公开(公告)日：2016-09-22
申请号：US15169207
申请日：2016-05-31
申请人： CAMERON HEALTH INC
发明人： Rick Sanghera , Venugopal Allavatam
IPC分类号： A61B5/04 , A61B5/00 , A61N1/37 , A61B5/0452 , A61N1/368 , A61B5/042 , A61N1/39
CPC分类号： A61B5/04011 , A61B5/0031 , A61B5/04012 , A61B5/0422 , A61B5/0452 , A61B5/686 , A61N1/368 , A61N1/3704 , A61N1/37211 , A61N1/3918 , A61N1/3956
摘要： Methods and devices for sensing vector analysis in an implantable cardiac stimulus system. In an illustrative example, a first sensing vector is analyzed to determine whether it is suitable, within given threshold conditions, for use in cardiac event detection and analysis. If so, the first vector may be selected for detection and analysis. Otherwise, one or more additional vectors are analyzed. A detailed example illustrates methods for analyzing sensing vectors by the use of a scoring system. Devices adapted to perform these methods are also discussed, including implantable medical devices adapted to perform these methods, and systems comprising implantable medical to devices and programmers adapted to communicate with implantable medical devices, the systems also being adapted to perform these methods. Another example includes a programmer configured to perform these methods including certain steps of directing operation of an associated implanted or implantable medical device.
摘要翻译：用于在可植入心脏刺激系统中感测矢量分析的方法和装置。在说明性示例中，分析第一感测向量以确定在给定阈值条件内是否适合用于心脏事件检测和分析。如果是这样，可以选择第一个载体进行检测和分析。否则，分析一个或多个附加向量。详细的例子说明了通过使用评分系统来分析感测矢量的方法。还讨论了适于执行这些方法的设备，包括适于执行这些方法的可植入医疗设备，以及包括可植入医学的系统，其适用于与可植入医疗设备通信的设备和编程器，该系统还适于执行这些方法。另一示例包括被配置为执行这些方法的程序员，包括指导相关联的植入式或可植入医疗设备的操作的某些步骤。

87. 发明申请

US20160166841A1 DEFIBRILLATION PACING CIRCUITRY 审中-公开
标题翻译：断路电路
公开(公告)号：US20160166841A1
公开(公告)日：2016-06-16
申请号：US15051805
申请日：2016-02-24
申请人： CAMERON HEALTH INC
发明人： Alan H. Ostroff
IPC分类号： A61N1/39 , A61N1/362
CPC分类号： A61N1/3962 , A61N1/362 , A61N1/3912
摘要： Electrical circuit componentry is switchable into a defibrillator circuit to deliver a constant pacing current to a patient. The circuitry may include a constant current source inserted in a leg of the defibrillator circuit or a resistor of selected value inserted between a high voltage source and the high side of a defibrillator circuit.
摘要翻译：电路组件可切换到除颤器电路中，以向患者输送恒定的起搏电流。电路可以包括插入在除颤器电路的腿部的恒定电流源或插入在高电压源和除颤器电路的高侧之间的选定值的电阻器。

88. 发明授权

US09341680B2 Selectable upper voltage range monitoring circuit 有权
标题翻译：可选上限电压范围监控电路
公开(公告)号：US09341680B2
公开(公告)日：2016-05-17
申请号：US14067266
申请日：2013-10-30
申请人： Cameron Health, Inc.
发明人： Ravi S. Ananth
IPC分类号： H02J7/34 , G01R31/36 , A61N1/39 , G01R15/08
CPC分类号： G01R31/362 , A61N1/3975 , G01R15/08 , H02J7/345
摘要： A battery voltage measuring circuit for an implantable cardiac device is presented. Since the usable battery voltage for the device is limited to an upper range of voltages, the need for measuring lower voltages at which the battery is approaching end of life is of no use. The disclosed invention allows for the measurement of a selectable upper range of battery levels that can be chosen without using a level shifting device such as a zener diode. Multiple voltage ranges with associated measurement resolutions can be achieved without using high current zener diode implementations. This allows for a trade-off between measurement range and resolution while resulting in a lower power and more accurate measurement circuit. Conventional zener diode implementations only allow for a single measurement range and are prone to non-linear error as the voltage measurement range increases.
摘要翻译：提出了一种用于植入式心脏装置的电池电压测量电路。由于器件的可用电池电压被限制在较高的电压范围内，所以对电池正在接近寿命结束的较低电压进行测量的需求是没有用的。所公开的发明允许测量可以在不使用诸如齐纳二极管的电平转换装置的情况下选择的可选择的电池电平的上限范围。可以在不使用高电流齐纳二极管实现的情况下实现具有相关测量分辨率的多个电压范围。这允许在测量范围和分辨率之间进行权衡，同时导致更低的功率和更精确的测量电路。传统的齐纳二极管实现仅允许单个测量范围，并且随着电压测量范围的增加而容易发生非线性误差。

89. 发明授权

US09238148B2 Method for increasing buck regulator efficiency using charge recapturing in an implantable cardiac device 有权
标题翻译：用于在可植入心脏装置中使用电荷重新获取来提高降压调节器效率的方法
公开(公告)号：US09238148B2
公开(公告)日：2016-01-19
申请号：US13938473
申请日：2013-07-10
申请人： Cameron Health, Inc.
发明人： Ravi S. Ananth
IPC分类号： A61N1/08 , A61N1/39 , A61M5/172 , A61M1/10 , A61M5/142
CPC分类号： A61N1/3975 , A61M1/1086 , A61M5/14276 , A61M5/1723 , A61M2005/1726 , A61M2205/8212 , A61N1/3956 , A61N1/3981
摘要： A typical power switch in a Buck Regulator requires a pre-driver to ensure rapid transition from its ON to OFF states. In this invention, the shoot through current in the pre-driver and the power switch's gate-charge in a Buck regulator is itself recaptured in the capacitor of the buck regulator. The recapturing of this otherwise wasted shoot-through current and gate charge allows for increased efficiency of the regulator. The recapture may be selectively disabled to accommodate high power operations of the system, if such are used; the recapture may in an alternative mode be always performed. As a result, reduced power consumption can be achieved.
摘要翻译：降压稳压器中的典型电源开关需要预驱动器，以确保从其导通到断开状态的快速转换。在本发明中，降压调节器中的预驱动器中的直通电流和降压稳压器中的功率开关的栅极电荷本身被重新捕获在降压调节器的电容器中。重新捕获这种另外浪费的直通电流和栅极电荷允许提高调节器的效率。可以选择性地禁止重新捕获以适应系统的高功率操作（如果使用）总是可以在替代模式中重新捕获。结果，可以实现降低的功耗。

90. 发明授权

US09155485B2 Method for discriminating between ventricular and supraventricular arrhythmias 有权
标题翻译：区分心室和室上性心律失常的方法
公开(公告)号：US09155485B2
公开(公告)日：2015-10-13
申请号：US14573475
申请日：2014-12-17
申请人： CAMERON HEALTH, INC.
发明人： Alan H. Ostroff , Jay A. Warren , Gust H. Bardy
IPC分类号： A61N1/00 , A61B5/0452 , A61N1/39 , A61B5/0464 , A61B5/00
CPC分类号： A61N1/3956 , A61B5/0422 , A61B5/04525 , A61B5/0464 , A61B5/686 , A61N1/3925 , A61N1/3987
摘要： The present invention is directed toward a detection architecture for use in implantable cardiac rhythm devices. The detection architecture of the present invention provides methods and devices for discriminating between arrhythmias. Moreover, by exploiting the enhanced specificity in the origin of the identified arrhythmia, the detection architecture can better discriminate between rhythms appropriate for device therapy and those that are not.
摘要翻译：本发明涉及用于可植入心律装置的检测架构。本发明的检测架构提供了用于区分心律失常的方法和装置。此外，通过利用识别的心律失常起源的增强的特异性，检测架构可以更好地区分适合于设备治疗的节律和不适合的治疗节律。

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