| 摘要 |
<p>The disclosure relates to a catheter (21) having a high torque capability adapted to be inserted into and through a lumen of a blood vessel comprising a flexible elongate tubular shaft (22) having proximal and distal extremities (23,24). The shaft (22) is comprised of a torque tube (31) extending substantially the entire length of the shaft (22). The torque tube (31) has a cylindrical wall with at least one flexible portion (31a,31b,31c). A handle (91a) is secured to the proximal extremity (23) and carries steering lever means (96), which includes a circular cap (101) overlying a side of the handle (91a). Means (126) to form a seal is provided between the cap (101) and handle (91a). <IMAGE></p> |
