Medical device control handle with multiple puller wires

An electrophysiological catheter having at least a first feature subject to manipulation by a user, the catheter comprising:

• an elongated catheter body, the first feature being distal of the catheter body;
• a control handle;
• and
• a plurality of puller wires extending from the control handle and through at least the elongated catheter body,
• wherein the control handle comprises:
• a housing;
• a deflection assembly comprising:
• a deflection actuator adapted for rotation by the user;
• a pulley arm adapted for rotation about a rotational axis in response to rotation of the deflection actuator, at least a first of the puller wires coupled to the pulley arm, wherein rotation of the pulley arm actuates the at least first puller wire;
• a disk actuator adapted for rotation about the rotational axis by the user;
• and
• a second of the puller wires coupled to the disk actuator, wherein rotation of the disk actuator actuates the second puller wire to manipulate the first feature,
• wherein the pulley arm has a radial bearing formation defining the rotational axis, and the disk actuator is positioned on the radial bearing formation and adapted to wrap the second puller wire on the radial bearing formation when the disk actuator is rotated by the user, the disk actuator and the pulley arm being rotationally independent of each other.

An electrophysiological catheter having at least a first feature subject to manipulation by a user, the catheter comprising:

• an elongated catheter body, the first feature being distal of the catheter body;
• a control handle defining a longitudinal axis;
• and
• a plurality of puller wires extending from the control handle and through at least the elongated catheter body,
• wherein the control handle comprises:
• a housing;
• a deflection assembly comprising:
• a deflection actuator adapted for rotation by the user;
• a pulley arm adapted for rotation about a first rotational axis in response to rotation of the deflection actuator, at least a first of the puller wires coupled to the pulley arm, wherein rotation of the pulley arm actuates the at least first puller wire;
• and
• a lever actuator adapted for rotation about a second rotational axis by the user, the second rotational axis being generally parallel with the longitudinal axis of the control handle, a second of the puller wires being coupled to the lever actuator and rotation of the lever actuator actuates the second puller wire to manipulate the first feature,
• wherein the lever actuator and the pulley arm are rotationally independent of each other.

An electrophysiological catheter having at least a first feature subject to manipulation by a user, the catheter comprising:

• an elongated catheter body, the first feature being distal of the catheter body;
• a control handle defining a longitudinal axis;
• and
• a plurality of puller wires extending from the control handle and through at least the elongated catheter body,
• wherein the control handle comprises:
• a housing;
• a deflection assembly comprising:
• a deflection actuator adapted for rotation by the user;
• a pulley arm adapted for rotation about a first rotational axis in response to rotation of the deflection actuator, at least a first of the puller wires coupled to the pulley arm, wherein rotation of the pulley arm actuates the at least first puller wire;
• and
• a ring actuator mounted on the control handle and adapted for rotation about the longitudinal axis of the control handle, a second of the puller wires being coupled to the ring actuator and rotation of the ring actuator actuates the second puller wire to manipulate the first feature,
• wherein the ring actuator and the pulley arm are rotationally independent of each other.