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公开(公告)号：US07184821B2
公开(公告)日：2007-02-27
申请号：US10726949
申请日：2003-12-03
IPC分类号： A61B5/05
CPC分类号： A61B5/0537 , A61B5/0809 , A61N1/372
摘要： Changes in fluid volume in a thoracic region, such as the lung, are detected by internally injecting a current through the region, detecting an induced voltage on the skin of the patient, and calculating an impedance value. A method for performing such a measurement includes injecting an electrical current between first and second internal electrodes that are implanted in the body and that are positioned such that a portion of the injected current flows through at least a portion of the region. The method also includes measuring a voltage between first and second external electrodes attached to an external surface of the skin of the body. The measured voltage is induced by the injected current. The method also includes calculating an impedance by taking the ratio of the measured voltage and the injected current, wherein the calculated impedance is related to the volume of fluid in the region.
摘要翻译： 通过在该区域内部注入电流，检测患者皮肤上的感应电压和计算阻抗值来检测胸部区域（例如肺）中的体积变化。 用于执行这种测量的方法包括在注入到体内的第一和第二内部电极之间注入电流，并将其定位成使得一部分注入的电流流过该区域的至少一部分。 该方法还包括测量附接到身体皮肤的外表面的第一和第二外部电极之间的电压。 测量的电压由注入电流引起。 该方法还包括通过获取测量电压和注入电流的比值来计算阻抗，其中所计算的阻抗与该区域中的流体体积相关。
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公开(公告)号：US08095207B2
公开(公告)日：2012-01-10
申请号：US11626329
申请日：2007-01-23
IPC分类号： A61B5/0402
CPC分类号： A61N1/3627 , A61B5/0031 , A61B5/04011
摘要： An implantable medical device includes a voltage measurement circuit to measure a potential difference between implanted electrodes in a thorax of a living being, the potential difference resulting from an electrical P-wave cardiac signal. The implantable medical device also includes a processing unit to calculate a vector corresponding to the P-wave cardiac signal, the vector comprising a magnitude and a direction, and derived from measured potential differences and orientations defined by locations of the implanted electrodes. The implantable medical device further includes a monitoring unit to track a rotation of the vector corresponding to the P-wave cardiac signal. In various implementations, the monitoring unit may use the rotation to detect an inter-atrial block condition.
摘要翻译： 可植入医疗装置包括电压测量电路，用于测量生物胸部中植入的电极之间的电位差，由电P波心脏信号产生的电位差。 可植入医疗装置还包括处理单元，用于计算对应于P波心脏信号的矢量，所述矢量包括幅度和方向，并且从测量的电位差和由注入电极的位置定义的取向导出。 可植入医疗装置还包括监测单元，用于跟踪对应于P波心脏信号的矢量的旋转。 在各种实现中，监视单元可以使用旋转来检测心房间块状况。
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公开(公告)号：US20070203420A1
公开(公告)日：2007-08-30
申请号：US11626329
申请日：2007-01-23
IPC分类号： A61B5/04
CPC分类号： A61N1/3627 , A61B5/0031 , A61B5/04011
摘要： An implantable medical device includes a voltage measurement circuit to measure a potential difference between implanted electrodes in a thorax of a living being, the potential difference resulting from an electrical P-wave cardiac signal. The implantable medical device also includes a processing unit to calculate a vector corresponding to the P-wave cardiac signal, the vector comprising a magnitude and a direction, and derived from measured potential differences and orientations defined by locations of the implanted electrodes. The implantable medical device further includes a monitoring unit to track a rotation of the vector corresponding to the P-wave cardiac signal. In various implementations, the monitoring unit may use the rotation to detect an inter-atrial block condition.
摘要翻译： 可植入医疗装置包括电压测量电路，用于测量生物胸部中植入的电极之间的电位差，由电P波心脏信号产生的电位差。 可植入医疗装置还包括处理单元，用于计算对应于P波心脏信号的矢量，所述矢量包括幅度和方向，并且从测量的电位差和由注入电极的位置限定的取向导出。 可植入医疗装置还包括监测单元，用于跟踪对应于P波心脏信号的矢量的旋转。 在各种实现中，监视单元可以使用旋转来检测心房间块状况。
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4.发明申请Pathology assessment with impedance measurements using convergent bioelectric lead fields 有权使用收敛生物电导领域进行阻抗测量的病理学评估公开(公告)号：US20060184060A1
公开(公告)日：2006-08-17
申请号：US11058123
申请日：2005-02-15
IPC分类号： A61B5/05
CPC分类号： A61B5/416 , A61B5/0537 , A61B5/4519
摘要： A method and apparatus for measuring impedance for pathology assessment in a living being using convergent bioelectric lead fields is disclosed, including injecting a current between first and second electrodes implanted in a body of a living being, where the first and second electrodes define a first electric lead field oriented between the first and second electrodes. A potential difference is measured between third and fourth electrodes implanted in the body, where the potential difference results from the current injected between the first and second electrodes. The third and fourth electrodes define a second electric lead field oriented between the third and fourth electrodes. The first and second electric lead fields converge near an assessment site within the body, but are substantially separated otherwise. An impedance value is calculated based on the potential difference and the current injection, and is used to assess a pathology near the assessment site.
摘要翻译： 公开了一种用于测量在使用会聚生物电场领域的生物中的病理学评估阻抗的方法和装置，包括在植入生物体内的第一和第二电极之间注入电流，其中第一和第二电极限定第一电 引线场定向在第一和第二电极之间。 在植入体内的第三和第四电极之间测量电位差，其中电位差由注入在第一和第二电极之间的电流产生。 第三和第四电极限定了定向在第三和第四电极之间的第二电引线场。 第一和第二电引线场在体内的评估位点附近收敛，但是基本上彼此分离。 基于电位差和电流注入计算阻抗值，并用于评估评估点附近的病理学。
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公开(公告)号：US20050124908A1
公开(公告)日：2005-06-09
申请号：US10726949
申请日：2003-12-03
CPC分类号： A61B5/0537 , A61B5/0809 , A61N1/372
摘要： Changes in fluid volume in a thoracic region, such as the lung, are detected by internally injecting a current through the region, detecting an induced voltage on the skin of the patient, and calculating an impedance value. A method for performing such a measurement includes injecting an electrical current between first and second internal electrodes that are implanted in the body and that are positioned such that a portion of the injected current flows through at least a portion of the region. The method also includes measuring a voltage between first and second external electrodes attached to an external surface of the skin of the body. The measured voltage is induced by the injected current. The method also includes calculating an impedance by taking the ratio of the measured voltage and the injected current, wherein the calculated impedance is related to the volume of fluid in the region.
摘要翻译： 通过在该区域内部注入电流，检测患者皮肤上的感应电压和计算阻抗值来检测胸部区域（例如肺）中的体积变化。 用于执行这种测量的方法包括在注入到体内的第一和第二内部电极之间注入电流，并将其定位成使得一部分注入的电流流过该区域的至少一部分。 该方法还包括测量附接到身体皮肤的外表面的第一和第二外部电极之间的电压。 测量的电压由注入电流引起。 该方法还包括通过获取测量电压和注入电流的比值来计算阻抗，其中所计算的阻抗与该区域中的流体体积相关。
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6.发明授权公开(公告)号：US08131356B2
公开(公告)日：2012-03-06
申请号：US11936357
申请日：2007-11-07
CPC分类号： A61B5/4869 , A61B5/053 , A61B5/4878
摘要： An implantable medical device includes a housing for the implantable device that is sized for implantation in a chest region of a patient and includes a housing electrode. A left ventricular lead port is connectable to a proximal end of a lead having first and second insulated conductors that extend from the proximal end of the lead to corresponding first and second electrodes near a distal end of the lead. An electrical impedance measurement circuit is electrically connected to the left ventricular lead port and the housing electrode. The circuit may inject current between the first lead electrode and the housing electrode, and measure a voltage potential, created by the current injection, between the second lead electrode and the housing electrode. The ratio of the measured voltage to injected current may be used for assessing pulmonary edema. The lead electrodes may be located in a left ventricular coronary vein.
摘要翻译： 可植入医疗装置包括用于可植入装置的壳体，其尺寸适于植入患者的胸部区域并且包括壳体电极。 左心室引导端口可连接到具有从引线的近端延伸到引线远端附近的对应的第一和第二电极的第一和第二绝缘导体的引线的近端。 电阻抗测量电路电连接到左心室引导端口和外壳电极。 电路可以在第一引线电极和壳体电极之间注入电流，并且测量由第二引线电极和外壳电极之间的电流注入产生的电压。 测量电压与注射电流的比值可用于评估肺水肿。 引线电极可以位于左心室冠状静脉中。
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7.发明授权Pathology assessment with impedance measurements using convergent bioelectric lead fields 有权使用收敛生物电导领域进行阻抗测量的病理学评估公开(公告)号：US07447543B2
公开(公告)日：2008-11-04
申请号：US11058123
申请日：2005-02-15
IPC分类号： A61B5/053
CPC分类号： A61B5/416 , A61B5/0537 , A61B5/4519
摘要： A method and apparatus for measuring impedance for pathology assessment in a living being using convergent bioelectric lead fields is disclosed, including injecting a current between first and second electrodes implanted in a body of a living being, where the first and second electrodes define a first electric lead field oriented between the first and second electrodes. A potential difference is measured between third and fourth electrodes implanted in the body, where the potential difference results from the current injected between the first and second electrodes. The third and fourth electrodes define a second electric lead field oriented between the third and fourth electrodes. The first and second electric lead fields converge near an assessment site within the body, but are substantially separated otherwise. An impedance value is calculated based on the potential difference and the current injection, and is used to assess a pathology near the assessment site.
摘要翻译： 公开了一种用于测量在使用会聚生物电场领域的生物中的病理学评估阻抗的方法和装置，包括在植入生物体内的第一和第二电极之间注入电流，其中第一和第二电极限定第一电 引线场定向在第一和第二电极之间。 在植入体内的第三和第四电极之间测量电位差，其中电位差由注入在第一和第二电极之间的电流产生。 第三和第四电极限定了定向在第三和第四电极之间的第二电引线场。 第一和第二电引线场在体内的评估位点附近收敛，但是基本上彼此分离。 基于电位差和电流注入计算阻抗值，并用于评估评估点附近的病理学。
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8.发明申请公开(公告)号：US20080125826A1
公开(公告)日：2008-05-29
申请号：US11936357
申请日：2007-11-07
CPC分类号： A61B5/4869 , A61B5/053 , A61B5/4878
摘要： An implantable medical device includes a housing for the implantable device that is sized for implantation in a chest region of a patient and includes a housing electrode. A left ventricular lead port is connectable to a proximal end of a lead having first and second insulated conductors that extend from the proximal end of the lead to corresponding first and second electrodes near a distal end of the lead. An electrical impedance measurement circuit is electrically connected to the left ventricular lead port and the housing electrode. The circuit may inject current between the first lead electrode and the housing electrode, and measure a voltage potential, created by the current injection, between the second lead electrode and the housing electrode. The ratio of the measured voltage to injected current may be used for assessing pulmonary edema. The lead electrodes may be located in a left ventricular coronary vein.
摘要翻译： 可植入医疗装置包括用于可植入装置的壳体，其尺寸适于植入患者的胸部区域并且包括壳体电极。 左心室引导端口可连接到具有从引线的近端延伸到引线远端附近的对应的第一和第二电极的第一和第二绝缘导体的引线的近端。 电阻抗测量电路电连接到左心室引导端口和外壳电极。 电路可以在第一引线电极和壳体电极之间注入电流，并且测量由第二引线电极和外壳电极之间的电流注入产生的电压。 测量电压与注射电流的比值可用于评估肺水肿。 引线电极可以位于左心室冠状静脉中。
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9.发明授权公开(公告)号：US07313434B2
公开(公告)日：2007-12-25
申请号：US10303305
申请日：2002-11-25
IPC分类号： A61B5/05
CPC分类号： A61B5/4869 , A61B5/053 , A61B5/4878
摘要： An implantable medical device includes a housing for the implantable device that is sized for implantation in a chest region of a patient and includes a housing electrode. A left ventricular lead port is connectable to a proximal end of a lead having first and second insulated conductors that extend from the proximal end of the lead to corresponding first and second electrodes near a distal end of the lead. An electrical impedance measurement circuit is electrically connected to the left ventricular lead port and the housing electrode. The circuit may inject current between the first lead electrode and the housing electrode, and measure a voltage potential, created by the current injection, between the second lead electrode and the housing electrode. The ratio of the measured voltage to injected current may be used for assessing pulmonary edema. The lead electrodes may be located in a left ventricular coronary vein.
摘要翻译： 可植入医疗装置包括用于可植入装置的壳体，其尺寸适于植入患者的胸部区域并且包括壳体电极。 左心室引导端口可连接到具有从引线的近端延伸到引线远端附近的对应的第一和第二电极的第一和第二绝缘导体的引线的近端。 电阻抗测量电路电连接到左心室引导端口和外壳电极。 电路可以在第一引线电极和壳体电极之间注入电流，并且测量由第二引线电极和外壳电极之间的电流注入产生的电压。 测量电压与注射电流的比值可用于评估肺水肿。 引线电极可以位于左心室冠状静脉中。
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公开(公告)号：US10946945B2
公开(公告)日：2021-03-16
申请号：US16163494
申请日：2018-10-17
申请人： Robert Patterson
发明人： Robert Patterson
摘要： A system for cutting marine grasses, weeds and other plant life to protect a propeller drive watercraft is disclosed. An adjustable, protective cutting edge to protect a propeller, drive shaft of a boat or other watercraft motor is further disclosed. A propeller protection device to mount upon a watercraft is further disclosed for optimizing the navigation of watercraft and reducing in-piloting maintenance of clearing plant matter from a propeller of a watercraft.
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