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公开(公告)号:US20080234564A1
公开(公告)日:2008-09-25
申请号:US12131750
申请日:2008-06-02
IPC分类号: A61B5/042
CPC分类号: A61B5/0422 , A61B5/053 , A61B5/0538 , A61B5/1076
摘要: A mapping catheter is positioned in a heart chamber, and active electrode sites are activated to impose an electric field within the chamber. The blood volume and wall motion modulates the electric field, which is detected by passive electrode sites on the preferred catheter. Electrophysiology measurements, as well as geometry measurements, are taken from the passive electrodes and used to display a map of intrinsic heart activity.
摘要翻译: 映射导管位于心室中,活性电极位置被激活以在腔室内施加电场。 血液体积和壁运动调节电场,该电场由优选导管上的被动电极位点检测。 从被动电极获取电生理学测量以及几何测量,并用于显示内在心脏活动的图。
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公开(公告)号:US5311866A
公开(公告)日:1994-05-17
申请号:US949690
申请日:1992-09-23
IPC分类号: A61B5/0408 , A61B5/042 , A61B5/0428 , A61B5/04
CPC分类号: A61B5/0422 , A61B5/042 , A61B5/0538 , A61B5/6853 , A61B5/6858 , A61B2560/045 , A61B2562/0209 , A61B2562/043 , A61B5/0428 , Y10T29/49201
摘要: A mapping catheter assembly 10 including a flexible lead body 12 and a deformable lead body 14. A lumen 22 is provided to accept a reference catheter 18 which includes a distal tip electrode assembly 29. In use an array 16 of electrode sites are deformed into a spherical shape after the assembly is placed in a heart chamber. The reference electrode assembly 29 is advanced into contact with the heart wall to provide calibration information for the array 16.
摘要翻译: 包括柔性引线主体12和可变形引线主体14的映射导管组件10.提供内腔22以接纳包括远端尖端电极组件29的参考导管18.在使用中,电极位置的阵列16变形为 将组装后的球形放置在心室中。 参考电极组件29前进成与心壁接触以提供阵列16的校准信息。
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公开(公告)号:US5553611A
公开(公告)日:1996-09-10
申请号:US376067
申请日:1995-01-20
CPC分类号: A61B5/6853 , A61B5/0422 , A61B5/0535 , A61B5/0538 , A61B5/06 , A61B5/1076 , A61B2562/0209 , A61B2562/046
摘要: A collection of measurements are taken from a set of measurement electrodes to determine the position of a catheter in a heart chamber. The preferred measurement catheter includes a relatively large dielectric volume.
摘要翻译: 从一组测量电极获取测量的集合,以确定导管在心室中的位置。 优选的测量导管包括相对大的介电体积。
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公开(公告)号:US07289843B2
公开(公告)日:2007-10-30
申请号:US11003207
申请日:2004-12-03
IPC分类号: A61B5/0402
CPC分类号: A61B5/6853 , A61B5/04085 , A61B5/042 , A61B5/0422 , A61B5/0428 , A61B5/0538 , A61B5/1076 , A61B5/6858 , A61B18/1492 , A61B18/18 , A61B18/1815 , A61B18/24 , A61B2018/00214 , A61B2018/00267 , A61B2018/00839 , A61B2560/045 , A61B2562/0209 , A61B2562/043 , A61B2562/046 , A61N1/3625 , A61N1/3702 , Y10T29/49117
摘要: A computer software program is described that maps the electrical activity of a patient's heart. The software program utilizes inputs from electrodes contained within a heart chamber. Inputs from the electrodes cause the program to calculate the heart chamber volume, and then to determine the position of the electrodes within the heart chamber. The program then utilizes inputs from the electrodes to calculate the three-dimensional volumetric electrical field distribution of said heart chamber. This calculation is accomplished using a spherical harmonic series expression. Finally, the computer program displays the electrical field distribution of the heart chamber.
摘要翻译: 描述了映射患者心脏的电活动的计算机软件程序。 软件程序利用包含在心室内的电极的输入。 来自电极的输入导致程序计算心室容积,然后确定电极在心室内的位置。 该程序然后利用来自电极的输入来计算所述心室的三维体积电场分布。 该计算使用球面谐波串联表达式来实现。 最后,计算机程序显示心室的电场分布。
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公开(公告)号:US5297549A
公开(公告)日:1994-03-29
申请号:US950448
申请日:1992-09-23
IPC分类号: A61B5/0408 , A61B5/042 , A61B5/0428 , A61B5/053 , A61B5/04
CPC分类号: A61B5/0535 , A61B5/042 , A61B5/0422 , A61B5/0538 , A61B5/6853 , A61B5/6858 , A61B2560/045 , A61B2562/0209 , A61B2562/043 , A61B5/0428
摘要: An array of electrode sites are placed in a heart chamber. The shape of the chamber and the location of the electrodes is determined via impedance plethysmography. Electrical measurements taken from the electrode array and referenced to a surface contacting electrode is used to generate a three-dimensional map of electrical activity. A two-dimensional map of the electrical activity within the endocardial surface is also computed.
摘要翻译: 电极位置阵列放置在心室中。 通过阻抗体积描记法确定腔室的形状和电极的位置。 使用从电极阵列获取并参考表面接触电极的电测量来产生电活动的三维图。 还计算了心内膜表面内电活动的二维图。
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公开(公告)号:US4977889A
公开(公告)日:1990-12-18
申请号:US420276
申请日:1989-10-12
申请人: Jeffrey R. Budd
发明人: Jeffrey R. Budd
CPC分类号: A61H9/0078 , A61B5/087 , A61M16/0006 , A61H2205/08 , A61H2230/40 , A61M2016/0042
摘要: Persons having respiratory diseases often have treatment programs including a pummeling of the thoracic cavity for the purpose of aiding respiration. A vest as a part of an alternating compression machine is used to eliminate the need for trained physical therapists and rather provide for mechanical thumping. A fitting routine for the vest is provided. A routine for identifying optimal operating frequencies for the machine is also provided, along with an algorithm for selecting appropriate frequencies.
摘要翻译: 患有呼吸系统疾病的人通常有治疗方案,包括用于辅助呼吸的胸腔抽搐。 作为交替压缩机的一部分的背心用于消除对经过训练的物理治疗师的需要,并且提供机械捶击。 提供背心的配件例程。 还提供了用于识别机器的最佳工作频率的例程,以及用于选择适当频率的算法。
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