发明名称 |
Multicurve deflectable catheter |
摘要 |
An electrophysiology catheter (20) comprises a shaft (22) having a first bending stiffness and a deflectable tip (28) secured to the distal end (24) of the shaft with a second bending stiffness less than the first bending stiffness. At least one electrode (34, 36) is mounted to the tip for delivering current to or monitoring electrical activity of tissue. A manipulator wire (58) is coupled to the distal end of the deflectable tip, whereby the deflectable tip may be deflected by axial force applied to the manipulator wire. A stiffener member (66) is axially slidable relative to the tip so as to adjust the tip curvature without removing the catheter from the body. The catheter may further include a core wire (72) configured to rotate the deflectable tip about a longitudinal axis (2) without rotating the proximal end (26) of the catheter shaft, wherein the distal end of the deflectable tip remains in a substantially constant axial position, preferably in a plane perpendicular to the longitudinal axis.
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申请公布号 |
US5487757(A) |
申请公布日期 |
1996.01.30 |
申请号 |
US19950391333 |
申请日期 |
1995.02.21 |
申请人 |
MEDTRONIC CARDIORHYTHM |
发明人 |
TRUCKAI, CSABA;JARACZEWSKI, RICHARD S.;NGUYEN, FRANK;WEST, SCOTT H. |
分类号 |
A61B18/14;A61M25/01;A61N1/05;(IPC1-7):A61N1/05 |
主分类号 |
A61B18/14 |
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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