公开(公告)号：US20050159797A1

公开(公告)日：2005-07-21

申请号：US11079318

申请日：2005-03-15

申请人： Subashini Chandran ,  Krishan Shah

发明人： Subashini Chandran ,  Krishan Shah

IPC分类号： A61B18/14 ,  A61B19/00 ,  A61N1/06 ,  A61N1/34 ,  A61N1/40 ,  A61F7/00 ,  A61F7/12

CPC分类号： A61B18/1477 ,  A61B90/39 ,  A61B2090/3966 ,  A61N1/06 ,  A61N1/36017 ,  A61N1/36021 ,  A61N1/40

摘要： A method and apparatus are disclosed for improving accuracy of placement of a cannula during delivery of electrical energy proximate to bodily tissue, e.g. neural structures. The apparatus optionally includes a cannula operable to deliver electrical current where a portion of the cannula is electrically insulated and a portion of the cannula is exposed and electrically conductive. The cannula further includes a radiopaque marker to identify a specific portion of the cannula, for example to differentiate the electrically insulated region from the electrically exposed region, by allowing it to be more clearly delineated using fluoroscopy or other radiographic imaging techniques. The radiopaque marker is optionally tapered in order to reduce the force required to insert a cannula comprising a radiopaque marker into the patient's body.

摘要翻译： 公开了一种用于在递送靠近身体组织的电能的递送期间提高插管的放置准确度的方法和装置，例如， 神经结构。 该装置可选地包括可操作以递送电流的套管，其中套管的一部分是电绝缘的并且套管的一部分被暴露并导电。 插管还包括不透射线的标记，用于识别插管的特定部分，例如通过使用荧光透视或其它放射照相成像技术更清楚地描绘电绝缘区域与电暴露区域的区别。 不透射线的标记可选地渐缩，以便减少将包括不透射线的标记插入患者体内所需的力。