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1. 发明申请

WO2007062239A2 METHOD AND APPARATUS FOR MINIMALLY INVASIVE DIRECT MECHANICAL VENTRICULAR ACTUATION 审中-公开
标题翻译：最小直接机械通气动作的方法与装置
公开(公告)号：WO2007062239A2
公开(公告)日：2007-05-31
申请号：PCT/US2006/045492
申请日：2006-11-28
申请人： MYOTECH LLC , MACDONALD, Stuart G. , PEREZ-TAMAYO, Ruheri A. , ANSTADT, George W.
发明人： MACDONALD, Stuart G. , PEREZ-TAMAYO, Ruheri A. , ANSTADT, George W.
IPC分类号： A61F2/02
CPC分类号： A61M1/122 , A61F2/2481 , A61F2002/2484 , A61F2250/0003 , A61M1/1008 , A61M1/1058 , A61M1/106 , A61M1/1068 , A61M1/12 , A61M2205/0283
摘要： A device for assisting the function of a heart can be deployed using minimally invasive procedures. The device is collapsible to facilitate insertion into the chest cavity and deployment on the heart, e.g., via a specially configured tube. In one embodiment, the device includes a cup-shaped shell having a wall with an outer surface and an inner surface, the wall extending from a hole at an apex of the shell to a rim; a cup-shaped support cage disposed within the cup-shaped shell, the support cage comprising a base comprising a port and a plurality of flexible radial struts comprising proximal ends extending from the base contiguously along the inner surface of the shell to distal ends that are proximate to the rim of the shell; a liner comprising an outer surface, an inner surface, an upper region joined to the rim of the cup-shaped shell, a tapered seal, an elastic central region, and a lower region joined to the cup-shaped shell proximate to the base of the support cage, thereby forming an inflatable cavity between the outer surface of the liner and the inner surface of the shell; a first fitting connected to the apex of the cup-shaped shell and connectable to a first lumen; and; and a second fitting in communication with the inflatable cavity between the outer surface of the liner and the inner surface of the shell and connectable to a second lumen.
摘要翻译：可以使用微创程序部署用于辅助心脏功能的装置。该装置可折叠以便于插入胸腔并且例如通过特别配置的管部署在心脏上。在一个实施例中，该装置包括具有外壁和内表面的壁的杯形壳，该壁从壳的顶点处的孔延伸到边缘; 设置在杯形壳体内的杯状支撑保持架，支撑架包括底座，该基座包括端口和多个柔性径向支柱，该基座包括从底座沿着壳体的内表面连续延伸到远端的近端，靠近壳的边缘; 衬套，其包括外表面，内表面，连接到杯形壳的边缘的上部区域，锥形密封件，弹性中心区域和连接到杯形壳体的下部区域，靠近基座从而在衬套的外表面和壳的内表面之间形成可膨胀的空腔; 连接到杯形壳体的顶点并可连接到第一管腔的第一配件; 和; 以及第二配件，其与所述衬套的外表面和所述壳体的内表面之间的所述可充气腔连通，并且可连接到第二内腔。

2. 发明申请

WO2008073445A2 MEDICAL LEADS WITH FREQUENCY INDEPENDENT MAGNETIC RESONANCE IMAGING PROTECTION 审中-公开
标题翻译：频率独立磁共振成像医学领域
公开(公告)号：WO2008073445A2
公开(公告)日：2008-06-19
申请号：PCT/US2007/025366
申请日：2007-12-11
申请人： MEDTRONIC, INC. , GRAY, Robert W. , MACDONALD, Stuart G.
发明人： GRAY, Robert W. , MACDONALD, Stuart G.
IPC分类号： A61N1/00
CPC分类号： A61N1/37 , A61N1/086 , A61N1/3718 , G01R33/288
摘要： A medical device (1000) having a frequency independent circuit (1220) that substantially reduces induced currents in a lead assembly (1120) and at a tissue interface. The frequency independent circuit (1220) configures an electrical path such that a stimulation pulse travels from the medical device (1000) to a selected tissue, and a current induced by an external changing electromagnetic signal is prevented from travelling the electrical path from the selected tissue to the medical device.
摘要翻译：具有频率无关电路（1220）的医疗装置（1000），其基本减少引线组件（1120）中和组织界面处的感应电流。频率独立电路（1220）配置电路径，使得刺激脉冲从医疗设备（1000）行进到选择的组织，并且防止由外部改变的电磁信号感应的电流从选择的组织行进电路径到医疗设备。

3. 发明申请

WO2009003158A1 MRI-SAFE DEFIBRILLATOR ELECTRODES 审中-公开
标题翻译： MRI安全除颤器电极
公开(公告)号：WO2009003158A1
公开(公告)日：2008-12-31
申请号：PCT/US2008/068514
申请日：2008-06-27
申请人： MEDTRONIC, INC. , MACDONALD, Stuart G.
发明人： MACDONALD, Stuart G.
IPC分类号： A61N1/08 , A61N1/05
CPC分类号： A61N1/0563 , A61N1/086
摘要： The present invention reduces patient risks associated with RF-induced thermogenic tissue damage and with pulsed gradient-field-induced arrhythmias by using a defibrillator lead having a self-healing dielectric material that prevents induced voltages from MRI equipment from damaging an ICD or causing unintended defibrillation shocks to a patient. Another aspect of the present invention utilizes a sliding contact arrangement to prevent induced voltages from MRI equipment from being electrically coupled to an ICD thereby reducing patient risks associated with RF-induced thermogenic tissue damage and with pulsed gradient-field-induced arrhythmias.
摘要翻译：本发明通过使用具有自愈电介质材料的除颤器引线来减少与RF诱发的生热组织损伤相关的患者风险，并且通过脉冲梯度场引起的心律不齐，其防止来自MRI设备的感应电压损坏ICD或引起意外的除颤对病人的冲击。本发明的另一方面利用滑动接触装置来防止来自MRI设备的感应电压与ICD电耦合，从而减少与RF诱发的生热组织损伤相关的患者风险以及脉冲梯度场引起的心律失常。

4. 发明申请

WO2008076956A3 MEDICAL LEADS WITH FREQUENCY INDEPENDENT MAGNETIC RESONANCE IMAGING PROTECTION 审中-公开
公开(公告)号：WO2008076956A3
公开(公告)日：2008-06-26
申请号：PCT/US2007/087710
申请日：2007-12-17
申请人： MEDTRONIC, INC. , MACDONALD, Stuart G. , SMITH, Lon E. , GRAY, Robert W. , WEINER, Michael L.
发明人： MACDONALD, Stuart G. , SMITH, Lon E. , GRAY, Robert W. , WEINER, Michael L.
IPC分类号： A61N1/37 , A61N1/362
摘要： A medical device having a diode configuration in a lead assembly that substantially reduces induced currents in a lead assembly and at a tissue interface. The diodes configure an electrical path such that a stimulation pulse travels from the medical device to a selected tissue, and a current induced by an external changing electromagnetic signal is reduced and/or prevented from travelling the electrical path from the selected tissue to the medical device. The diodes may be at least partially contained in an electrode of the medical device.

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