| 摘要 |
A catheter steering mechanism 10 includes a tubular member 12 defining a passage 14 . The tubular member 12 has a longitudinally extending, cutaway portion 16 defining a bend-enhancing region formed at a predetermined location along a length of the tubular member 12 . An actuator 20 is received in the passage 14 of the tubular member 12 , a distal part 22 of the actuator 20 being fast with a distal part of the tubular member 12 . A restraining arrangement 24 is defined by the tubular member 12 , the restraining arrangement 24 comprising a structure 26 arranged at the bend-enhancing region to retain the actuator 20 substantially within the confines of the tubular member 12 during bending.
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