Devices and methods for operating and controlling interventional apparatus
First Claim
1. A catheter comprising:
- an elongated catheter shaft having a distal end and a proximal end;
an interventional element at the distal end of the catheter shaft, the interventional element having an adjustable length;
an actuator attached to the proximal end of the catheter shaft for adjusting the length of the interventional element, said actuator having a longitudinal axis and including a rotatable member operatively coupled to the catheter shaft, said rotatable member being rotatable around the longitudinal axis of the actuator.
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Accused Products
Abstract
Devices and methods are provided for operating and controlling an interventional element on an interventional catheter. The interventional element may be a stent or series of stents, a balloon, or any other interventional element for which length control is necessary or desirable. A handle member includes an elongated body and an actuator knob that rotates around the longitudinal axis of the body. Rotational movement of the actuator knob is translated to rotational movement of one or more lead screws by a system of gears, rollers, or combinations of gears and rollers. Each of one or more axially moveable members is positioned on a lead screw and attached to a portion of the catheter shaft in order to provide the ability to advance or retract the portion of the cathether shaft.
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Citations
21 Claims
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1. A catheter comprising:
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an elongated catheter shaft having a distal end and a proximal end;
an interventional element at the distal end of the catheter shaft, the interventional element having an adjustable length;
an actuator attached to the proximal end of the catheter shaft for adjusting the length of the interventional element, said actuator having a longitudinal axis and including a rotatable member operatively coupled to the catheter shaft, said rotatable member being rotatable around the longitudinal axis of the actuator. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method of using an interventional catheter at a target site in a patient'"'"'s body, the method comprising:
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positioning an interventional element of the interventional catheter near the target site, a proximal portion of the interventional catheter being disposed outside the patient'"'"'s body;
rotating a rotatable member located on an actuator attached to the proximal portion of the interventional catheter thereby causing retraction of a sheath to expose at least a portion of said interventional element, said actuator having a longitudinal axis and said rotatable member being rotatable around said longitudinal axis;
deploying the interventional element; and
rotating said rotatable member to cause advancement of said sheath. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21)
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Specification