公开(公告)号：US06425914B1

公开(公告)日：2002-07-30

申请号：US09668033

申请日：2000-09-21

申请人： Michael P. Wallace ,  Mehran Bashiri ,  Chad C. Roue

发明人： Michael P. Wallace ,  Mehran Bashiri ,  Chad C. Roue

IPC分类号： A61F206

CPC分类号： A61F2/95 ,  A61B17/12022 ,  A61B17/12113 ,  A61B17/12145 ,  A61B17/1215 ,  A61B17/12154 ,  A61B2017/12063 ,  A61F2/01 ,  A61F2/88 ,  A61F2/90 ,  A61F2002/011

摘要： This is an implant for placement in the human body and an assembly for so placing that implant. Most desirably, it is an implant for use in the vasculature of the human body and is used to occlude some space in that vasculature as a portion of a treatment regimen. The implant itself is preferably a component of a deployment device using an electrolytically severable joint. The implant component is at least partially covered with a highly resistive or insulative covering. The highly resistive or insulative layer or covering appears to enhance the susceptibility of the electrolytic joint to quick erosion and thus detachment of the implant. Although the implant itself is preferably a vaso-occlusive device, it may instead be a stent, a vena cava filter, or other implant which may be installed in this manner. The implant may be independently coated with insulative or resistive material or may be formed using a material with such as tantalum, which forms such an insulator or resistor in situ.

摘要翻译： 这是用于放置在人体中的植入物和用于使得植入物放置的组件。 最理想的是，它是用于人体脉管系统的植入物，并且用于封闭该脉管系统中的一些空间作为治疗方案的一部分。 植入物本身优选是使用电解可分割接头的展开装置的部件。 植入物部件至少部分地被高度电阻或绝缘覆盖物覆盖。 高电阻或绝缘层或覆盖层似乎增强了电解质接头的快速腐蚀和因此植入物脱离的敏感性。 虽然植入物本身优选为血管闭塞装置，但它可以是支架，腔静脉过滤器或可以以这种方式安装的其它植入物。 植入物可以独立地涂覆有绝缘或电阻材料，或者可以使用诸如钽的材料形成，其在原位形成这种绝缘体或电阻器。

公开(公告)号：US06397850B1

公开(公告)日：2002-06-04

申请号：US09501340

申请日：2000-02-09

申请人： Ronald W. Scheldrup ,  Jason E. Kalgreen ,  Mehran Bashiri

发明人： Ronald W. Scheldrup ,  Jason E. Kalgreen ,  Mehran Bashiri

IPC分类号： A61M2900

CPC分类号： A61B17/12022 ,  A61B17/12113 ,  A61B17/12145 ,  A61B2017/00022 ,  A61B2017/00026 ,  A61B2017/12063

摘要： An apparatus and method are disclosed for accurately detecting the detachment of both electrically conductive and non-conductive implants which have been introduced to and are intended to remain at a desired therapeutic site. The detachment detection apparatus may include a conductive or an electrically-isolated implant, such as a vasoocclusive coil, connected to a wire by an electrolytically severable joint. The detachment assembly further includes a power supply having a direct current drive circuit for supplying a direct current to the joint, an alternating current drive circuit for independently supplying an alternating current to the joint, and an alternating current monitoring circuit for monitoring an alternating current level of the alternating current supplied to the joint. The detection assembly includes a central processing unit for selecting a first mode and a second mode for determining a detachment threshold level indicating detachment of the implant. Additionally, a direct current monitoring circuit is provided for measuring a direct current impedance level of the direct current supplied to the joint wherein a percentage increase in the direct current impedance level indicates detachment of the implant if the alternating current level is greater than the detachment threshold level.

摘要翻译： 公开了一种用于精确地检测导入和预期保留在期望的治疗部位的导电植入物和非导电植入物的脱离的装置和方法。 分离检测装置可以包括导电或电隔离的植入物，例如血管闭塞线圈，其通过电解可分离的关节连接到线。 分离组件还包括具有用于向接头提供直流电流的直流驱动电路的电源，用于向接头独立提供交流电的交流驱动电路，以及用于监控交流电平的交流监视电路 提供给接头的交流电。 检测组件包括用于选择第一模式的中央处理单元和用于确定指示植入物脱离的脱离阈值水平的第二模式。 此外，提供直流监测电路用于测量提供给接头的直流电流的直流阻抗水平，其中如果交流电流大于分离阈值，则直流阻抗水平的百分比增加指示植入物的分离 水平。