Atherectomy devices, systems, and methods

A method comprising:

• providing a control handle coupled to a catheter, the control handle comprising a deflection actuator,
• manipulating the deflection actuator in a first direction, thereby deflecting a distal portion of the catheter, and
• manipulating the deflection actuator in a second direction, thereby rotating the distal portion of the catheter in an arcuate path.

A system comprising:

• a control handle coupled to a catheter, the control handle comprising a deflection control device and a rotation control device,
• the deflection control device adapted to deflect a distal portion of the catheter in a radially offset direction from the axis of the catheter, and
• the rotation control device adapted to rotate the distal portion of the catheter in an arcuate path while the distal portion of the catheter is deflected.

A system comprising:

• a catheter assembly sized and configured to be introduced into a blood vessel, the catheter assembly including a tissue cutting assembly at or near a distal end of the catheter assembly, the tissue cutting assembly including a rotatable cutter for debulking tissue from the blood vessel,
• a control handle coupled to the catheter assembly, the control handle including steering means for steering the tissue cutting assembly, rotating means for rotating the rotatable cutter, power means for providing power to the rotating means, the rotating means adapted to rotate the rotatable cutter, and on/off means for controlling the power to the rotating means, and
• a torque shaft extending from the rotating means to the rotatable cutter, the torque shaft including aspiration means to move cut tissue from the rotatable cutter through the catheter assembly and through at least a portion of the control handle to a receptacle.

A system comprising:

• a catheter assembly sized and configured to be introduced into a blood vessel, the catheter assembly including a tissue cutting assembly at or near a distal end of the catheter assembly, the tissue cutting assembly including a rotatable cutter for debulking the tissue from the blood vessel,
• a control handle coupled to the catheter assembly, the control handle comprising a deflection control device and a rotation control device, and
• instructions for use describing the use of the catheter, the instructions comprising the operations of introducing the catheter assembly into the blood vessel and positioning the tissue cutting assembly at or near a site in need of tissue debulking, manipulating the deflection control device thereby deflecting a distal portion of the catheter, and manipulating the rotation control device thereby rotating the distal portion of the catheter in an arcuate path.