Catheter control system having a pulley
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United States of America Patent
Stats
-
Apr 21, 1998
Grant Date -
N/A
app pub date -
May 2, 1995
filing date -
May 2, 1995
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A steerable catheter comprising a resilient body member, a manipulation handle attached to the proximal end of the body member, a control wire extending from the handle to the distal end of the catheter for deflection control, and a pulley mechanism for controlling the movement of the control wire. Longitudinal movement of a slide element in the handle causes movement of the control wire and control over the deflection of the distal end of the catheter. The pulley mechanism is connected between the slide element and the control wire to provide greater mechanical advantage to effect deflection of the body member while enhancing deflection control resolution. A stiffening member is also disposed in the catheter body member and its position is controlled by the rotational motion of the slide element. The position of the pulley mechanism is not affected by rotational motion of the slide element.
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Family
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Cited Art Landscape
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