摘要 |
<p>Deflection actuators configured to provide variable mechanical advantage and to optionally maintain a desired state of deflection. Each deflection actuator may comprise a plurality of planar components, at least one of which is adapted to move relative to at least one other component. The planar components may comprise a channeled platform and a pivotable base mounted adjacent to the channeled platform. The platform may comprise a slider trough to slidably retain a slider. The base may have a cam arm pivotally connected to it and adapted to push a slider in its trough, whereby pivoting of the pivotable base relative to the channeled platform produces linear motion by the slider in its slider trough. The deflection actuator may also comprise a friction lock knob, a knob receiver, and a pivot hub to selectably produce friction between various components to hold a catheter shaft in a desired state of deflection.</p> |