发明名称 |
Ablation catheter, system, and method of use thereof |
摘要 |
A cardiac ablation apparatus for producing a circumferential ablation that electrically isolates a heart chamber wall portion from vessel such as a pulmonary vein extending into said wall portion comprises (a) an elongate centering catheter having a distal end portion; (b) an expandable centering element connected to said centering catheter distal end portion and configured for positioning within said vessel when in a retracted configuration, and for securing said elongate centering catheter in a substantially axially aligned position with respect to said vessel when said centering element is in an expanded configuration; (c) an ablation catheter slidably connected to said centering catheter said ablation element having a distal end portion, and (d) an expandable ablation element connected to said ablation catheter distal end portion. The ablation element is configured to form a circumferential ablation on the wall around the elongate centering catheter when the centering catheter is axially aligned with respect to the vessel. In a further embodiment, a non-expandable, compliant centering element is employed, such as an elastic finger. Systems incorporating such an apparatus and methods of use thereof are also disclosed.
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申请公布号 |
US2003078574(A1) |
申请公布日期 |
2003.04.24 |
申请号 |
US20020286278 |
申请日期 |
2002.11.01 |
申请人 |
HALL JEFFREY A.;KENKNIGHT BRUCE H.;KAY G. NEAL;WALCOTT GREGORY P.;BOWE WADE A. |
发明人 |
HALL JEFFREY A.;KENKNIGHT BRUCE H.;KAY G. NEAL;WALCOTT GREGORY P.;BOWE WADE A. |
分类号 |
A61B17/00;A61B17/22;A61B18/14;(IPC1-7):A61B18/14 |
主分类号 |
A61B17/00 |
代理机构 |
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