发明名称 |
System for bi-directionally controlling the cryo-tip of a cryoablation catheter |
摘要 |
A bi-directional system for actively deflecting the distal tip of a catheter includes a reconfigurable tube that is positioned proximal to the catheter's distal tip. The tube is formed with slits that are arranged to allow the tube to be transformed from a relaxed, cylindrical configuration to a plurality of deflected configurations. First and second pull wires are provided, with each wire having a respective distal end that is attached to the distal end of the tube. Each wire extends to a catheter handle where it is attached to a respective reel. The reels can be rotated, back and forth, to selectively deflect or relax the tube. To ensure a smooth recovery after a relatively large deflection, a mechanism is disclosed for delaying an application of tension on one of the pull wires until at least a portion of any tension on the other pull wire is released.
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申请公布号 |
US2005288656(A1) |
申请公布日期 |
2005.12.29 |
申请号 |
US20040876306 |
申请日期 |
2004.06.24 |
申请人 |
KOERNER RICHARD J;LENTZ DAVID J;O'DONNELL JOSEPH A;SALINAS ALVIN B |
发明人 |
KOERNER RICHARD J.;LENTZ DAVID J.;O'DONNELL JOSEPH A.;SALINAS ALVIN B. |
分类号 |
A61B17/00;A61B18/02;A61M31/00;A61M37/00;(IPC1-7):A61B18/02 |
主分类号 |
A61B17/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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