公开(公告)号：US06496712B1

公开(公告)日：2002-12-17

申请号：US09562293

申请日：2000-05-01

申请人： Roger Dahl ,  Steven Savage

发明人： Roger Dahl ,  Steven Savage

IPC分类号： A61B5042

CPC分类号： A61B5/042

摘要： A method of and an apparatus for performing electrophysiological mapping of myocardial tissue. An electrode at a distal portion of a sensing catheter electrically contacts the tissue permitting the catheter to conduct a sensed signal to analysis and display equipment. The electrode is formed of a biocompatible metal. This basic structure is coated with a material with micro texturizes the electrode surface to increase the effective surface area without significantly increasing the electrode footprint.

摘要翻译： 用于进行心肌组织的电生理作图的方法和装置。 感测导管的远端部分处的电极与组织电接触，允许导管将检测到的信号传导到分析和显示设备。 电极由生物相容性金属形成。 该基本结构涂覆有微结构化电极表面的材料以增加有效表面积而不显着增加电极覆盖。

公开(公告)号：US06669679B1

公开(公告)日：2003-12-30

申请号：US09479110

申请日：2000-01-07

申请人： Steven Savage ,  Greg Brucker ,  Douglas J. Duchon

发明人： Steven Savage ,  Greg Brucker ,  Douglas J. Duchon

IPC分类号： A61M3100

CPC分类号： A61M25/007

摘要： A design is disclosed for a catheter assembly used during interventional and/or diagnostic procedures. The catheter includes a plurality of openings that allow for controlled fluid flow as the fluid exits the lumen of the catheter and can be inserted into the vascular system over a guidewire. As a result, the openings balance the fluid forces and, thereby, stabilize the distal tip to accommodate a wide range of injection parameters. The particular design of the catheter assembly of the present invention also reduces and/or eliminates recoil of the catheter tip during high volume injections, such as those associated with coronary or ventricular angiography.

摘要翻译： 公开了在介入和/或诊断过程期间使用的导管组件的设计。 导管包括多个开口，当流体离开导管的内腔并允许通过导丝插入血管系统时允许受控的流体流动。 结果，开口平衡流体力，从而稳定远侧末端以适应宽范围的注射参数。 本发明的导管组件的特定设计还在高体积注射（例如与冠状动脉或心室血管造影相关联的那些）中减少和/或消除了导管尖端的反冲。