Managing preload reserve by tracking the ventricular operating point with heart sounds
    51.
    发明授权
    Managing preload reserve by tracking the ventricular operating point with heart sounds 有权
    通过用心脏声音跟踪心室手术点来管理预负荷储备

    公开(公告)号:US08162844B2

    公开(公告)日:2012-04-24

    申请号:US12547207

    申请日:2009-08-25

    IPC分类号: A61B5/021 A61B5/0225

    摘要: A system and method for managing preload reserve and tracking the inotropic state of a patient's heart. The S1 heart sound is measured as a proxy for direct measurement of stroke volume. The S3 heart sound may be measured as a proxy for direct measurement of preload level. The S1-S3 pair yield a point on a Frank Starling type of curve, and reveal information regarding the patient's ventricular operating point and inotropic state. As an alternative, or in addition to, measurement of the S3 heart sound, the S4 heart sound may be measured or a direct pressure measurement may be made for the sake of determining the patient's preload level. The aforementioned measurements may be made by a cardiac rhythm management device, such as a pacemaker or implantable defibrillator.

    摘要翻译: 一种用于管理预负荷储备并跟踪患者心脏的变力状态的系统和方法。 测量S1心音作为直接测量行程体积的代理。 可以将S3心音测量为用于直接测量预载水平的代理。 S1-S3对在Frank Starling曲线上产生一个点,并显示关于患者的心室手术点和变力状态的信息。 作为S3心音的测量或除了测量S3心音之外,也可以测量S4心音,或者为了确定患者的预压水平可以进行直接的压力测量。 上述测量可以由诸如起搏器或可植入除颤器的心律管理装置进行。

    SENSING RATE OF CHANGE OF PRESSURE IN THE LEFT VENTRICLE WITH AN IMPLANTED DEVICE
    54.
    发明申请
    SENSING RATE OF CHANGE OF PRESSURE IN THE LEFT VENTRICLE WITH AN IMPLANTED DEVICE 有权
    在具有嵌入式装置的左心室中的压力变化率的感测率

    公开(公告)号:US20110263988A1

    公开(公告)日:2011-10-27

    申请号:US13178945

    申请日:2011-07-08

    摘要: An implantable device and method for monitoring S1 heart sounds with a remotely located accelerometer. The device includes a transducer that converts heart sounds into an electrical signal. A control circuit is coupled to the transducer. The control circuit is configured to receive the electrical signal, identify an S1 heart sound, and to convert the S1 heart sound into electrical information. The control circuit also generates morphological data from the electrical information. The morphological data relates to a hemodynamic metric, such as left ventricular contractility. A housing may enclose the control circuit. The housing defines a volume coextensive with an outer surface of the housing. The transducer is in or on the volume defined by the housing.

    摘要翻译: 一种用远程位置加速度计监测S1心音的可植入装置和方法。 该装置包括将心音转换为电信号的换能器。 控制电路耦合到换能器。 控制电路被配置为接收电信号,识别S1心音,并将S1心音转换为电信息。 控制电路还从电信息生成形态数据。 形态学数据涉及血流动力学指标,如左心室收缩力。 壳体可以包围控制电路。 壳体限定与壳体的外表面共同延伸的体积。 传感器位于由外壳限定的体积中。

    Method and apparatus for phonocardiographic image acquisition and presentation
    55.
    发明授权
    Method and apparatus for phonocardiographic image acquisition and presentation 有权
    用于心律图像获取和呈现的方法和装置

    公开(公告)号:US07930019B2

    公开(公告)日:2011-04-19

    申请号:US11780405

    申请日:2007-07-19

    IPC分类号: A61B5/04

    摘要: A cardiac rhythm management system provides a phonocardiographic image indicative of a heart's mechanical events related to hemodynamic performance. The phonocardiographic image includes a stack of acoustic sensor signal segments representing multiple cardiac cycles. Each acoustic sensor signal segment includes heart sounds indicative of the heart's mechanical events and representations of the heart's electrical events. The stack of acoustic sensor signal segments are aligned by a selected type of the heart's mechanical or electrical events and are grouped by a cardiac timing parameter for presentation.

    摘要翻译: 心律管理系统提供指示与血液动力学性能相关的心脏的机械事件的心音图像。 心音图像包括表示多个心动周期的一组声传感器信号段。 每个声学传感器信号段包括指示心脏的机械事件和心脏电气事件的表示的心脏声音。 声学传感器信号段的堆叠通过所选择的心脏的机械或电气事件的类型对准,并且通过心脏定时参数分组以进行呈现。

    METHOD AND APPARATUS FOR SENSING MECHANICAL ENERGY OF AN IMPLANTABLE LEAD
    56.
    发明申请
    METHOD AND APPARATUS FOR SENSING MECHANICAL ENERGY OF AN IMPLANTABLE LEAD 有权
    用于传感可塑性引线的机械能的方法和装置

    公开(公告)号:US20110071411A1

    公开(公告)日:2011-03-24

    申请号:US12876426

    申请日:2010-09-07

    IPC分类号: A61N1/365 A61B5/02 A61N1/39

    摘要: An apparatus comprises an implantable sensor and a signal analyzer circuit communicatively coupled to the implantable sensor. The implantable sensor is configured for coupling to an implantable lead and the implantable sensor provides an electrical vibration sensor signal representative of mechanical vibration of the implantable lead. The signal analyzer circuit is configured to determine a baseline of the vibration sensor signal, detect a change in the vibration sensor signal from the baseline vibration sensor signal, and provide an indication of the change to a user or process.

    摘要翻译: 一种装置包括可植入传感器和通信地耦合到可植入传感器的信号分析器电路。 可植入传感器被配置为联接到可植入引线,并且可植入传感器提供表示可植入引线的机械振动的电振动传感器信号。 信号分析器电路被配置为确定振动传感器信号的基线,从基线振动传感器信号检测振动传感器信号的变化,并且向用户或过程提供变化的指示。

    ASSESSMENT OF PULMONARY VASCULAR RESISTANCE VIA PULMONARY ARTERY PRESSURE
    58.
    发明申请
    ASSESSMENT OF PULMONARY VASCULAR RESISTANCE VIA PULMONARY ARTERY PRESSURE 有权
    通过脉搏压力评估脉管血管阻力

    公开(公告)号:US20100125211A1

    公开(公告)日:2010-05-20

    申请号:US12566432

    申请日:2009-09-24

    IPC分类号: A61B5/021 A61B5/02

    CPC分类号: A61B5/0215 A61B5/02007

    摘要: Methods and systems for assessing pulmonary or systemic vascular resistance in a patient using pressure measurements are disclosed. An illustrative method of measuring pulmonary vascular resistance includes electrically inducing a retrograde pressure pulse within the heart, sensing at least one arterial pressure parameter in response to the retrograde pressure pulse using a pressure sensor located within a pulmonary artery, and computing a value of the pulmonary vascular resistance using the at least one sensed arterial pressure parameter. Data from multiple pulmonary vascular resistance assessments can be taken over an extended period of time within the patient to aid in detecting an underlying cardiac or pulmonary condition such as cardiogenic pulmonary edema.

    摘要翻译: 公开了使用压力测量来评估患者肺或全身血管阻力的方法和系统。 测量肺血管阻力的示例性方法包括电诱导心脏内的逆行压力脉冲,使用位于肺动脉内的压力传感器响应于逆行压力脉冲感测至少一个动脉压参数,以及计算肺动脉压 使用所述至少一个感测到的动脉压参数的血管阻力。 来自多个肺血管阻力评估的数据可以在患者内延长的时间段内进行,以帮助检测潜在的心脏或肺部疾病如心源性肺水肿。

    Method for correction of posture dependence on heart sounds
    59.
    发明授权
    Method for correction of posture dependence on heart sounds 有权
    矫正心脏声音姿势依赖性的方法

    公开(公告)号:US07662104B2

    公开(公告)日:2010-02-16

    申请号:US11037275

    申请日:2005-01-18

    IPC分类号: A61B5/02

    摘要: A system to monitor heart sounds. The system comprises an implantable heart sound sensor operable to produce an electrical signal representative of at least one heart sound, a heart sound sensor interface circuit coupled to the heart sound sensor to produce a heart sound signal, an implantable posture sensor operable to produce an electrical signal representative of a patient's posture, and a controller circuit, coupled to the heart sound sensor interface circuit and the posture circuit. The controller circuit is operable to measure at least one heart sound in correspondence with at least one sensed patient posture.

    摘要翻译: 监听心音的系统 该系统包括可植入的心音传感器,其可操作以产生表示至少一个心音的电信号,耦合到心音传感器以产生心音信号的心音传感器接口电路,可操作以产生电声 代表患者姿势的信号,以及耦合到心脏声音传感器接口电路和姿势电路的控制器电路。 控制器电路可操作以对应于至少一个感测到的患者姿势来测量至少一个心音。

    MANAGING PRELOAD RESERVE BY TRACKING THE VENTRICULAR OPERATING POINT WITH HEART SOUNDS
    60.
    发明申请
    MANAGING PRELOAD RESERVE BY TRACKING THE VENTRICULAR OPERATING POINT WITH HEART SOUNDS 有权
    通过用心脏声音追踪心室操作点来管理前端保留

    公开(公告)号:US20090312659A1

    公开(公告)日:2009-12-17

    申请号:US12547207

    申请日:2009-08-25

    IPC分类号: A61B5/02

    摘要: A system and method for managing preload reserve and tracking the inotropic state of a patient's heart. The S1 heart sound is measured as a proxy for direct measurement of stroke volume. The S3 heart sound may be measured as a proxy for direct measurement of preload level. The S1-S3 pair yield a point on a Frank Starling type of curve, and reveal information regarding the patient's ventricular operating point and inotropic state. As an alternative, or in addition to, measurement of the S3 heart sound, the S4 heart sound may be measured or a direct pressure measurement may be made for the sake of determining the patient's preload level. The aforementioned measurements may be made by a cardiac rhythm management device, such as a pacemaker or implantable defibrillator.

    摘要翻译: 一种用于管理预负荷储备并跟踪患者心脏的变力状态的系统和方法。 测量S1心音作为直接测量行程体积的代理。 可以将S3心音测量为用于直接测量预载水平的代理。 S1-S3对在Frank Starling曲线上产生一个点,并显示关于患者的心室手术点和变力状态的信息。 作为S3心音的测量或除了测量S3心音之外,也可以测量S4心音,或者为了确定患者的预压水平可以进行直接的压力测量。 上述测量可以由诸如起搏器或可植入除颤器的心律管理装置进行。