公开(公告)号：US5397342A

公开(公告)日：1995-03-14

申请号：US71859

申请日：1993-06-07

申请人： Ronald W. Heil, Jr. ,  Bruce H. Kenknight ,  Robert W. Wickham, Jr., deceased ,  by Duane R. Quiggle, legal administrator

发明人： Ronald W. Heil, Jr. ,  Bruce H. Kenknight ,  Robert W. Wickham, Jr., deceased ,  by Duane R. Quiggle, legal administrator

IPC分类号： A61N1/05

CPC分类号： A61N1/0587

摘要： A cardioversion/defibrillation device includes a lead catheter housing, two electrically independent conductors, and a pair of resilient helically coiled electrodes, one electrode coupled to each of the conductors. The distal ends of the electrodes are contained within an insulative, resilient coupling sleeve, such that the electrodes and sleeve form a loop when in the relaxed state, with the electrodes electrically isolated from one another. To facilitate body insertion and delivery to the electrode placement site, the electrodes and coupling sleeve are loaded into a delivery cannula, which elastically deforms the electrodes and sleeve into an elongate, narrow delivery configuration. Upon release from the delivery device, these components resiliently return to the loop configuration. If desired, an inextensible filament secured to the coupling sleeve is pulled proximally after deployment to selectively reconfigure the electrodes into two loops. Another modification involves several linear electrode branch segments, coupled to each electrode and projected inwardly of the loop or loops formed by the electrodes.

摘要翻译： 心脏复律/除颤装置包括引导导管壳体，两个电独立导体和一对弹性螺旋线圈电极，一个电极连接到每个导体。 电极的远端包含在绝缘的弹性联接套筒内，使得当处于松弛状态时，电极和套管形成环，其中电极彼此电隔离。 为了便于身体插入和输送到电极放置位置，电极和联接套筒被装载到输送套管中，该插管使电极和套管弹性变形成细长的狭窄输送构型。 当从传送装置释放时，这些部件弹性地返回到环路配置。 如果需要，固定到联接套筒的不可伸长的细丝在展开之后被向近侧拉动以选择性地将电极重新配置成两个环。 另一个修改涉及几个线性电极分支段，耦合到每个电极并且由电极形成的环或环的内部突出。