Omni-directional steerable catheter
First Claim
1. A multi-directional catheter comprising:
- an elongated catheter body having proximal and distal ends and a central axis, and four off-axis lumens therethrough, said off-axis lumens being arranged symmetrically about the central axis;
a catheter tip section fixedly attached to the distal end of the catheter body, said tip section having proximal and distal ends, a central axis, and four off-axis lumens arranged symmetrically about the central axis of the tip section and aligned with the off-axis lumens of the catheter body;
a control handle at the proximal end of the catheter body, said control handle comprising a housing and four movable members each member being associated with a different off-axis lumen in the catheter body and aligned off-axis lumen in the tip section, and each movable member being movable between first and second positions relative to the housing; and
four elongated puller wires having proximal and distal ends, each puller wire being associated with a different off-axis lumen of the catheter body and aligned off-axis lumen of the tip section, and each puller wire being connected at its proximal end to a separate movable member in the control handle and extending through its associated off-axis lumen in the catheter body and into the aligned off-axis lumen of the tip section and wherein the distal end of the puller wire is fixedly attached to one of a tip electrode mounted on the tip section and the wall of the tip section at a selected location, whereby movement of a selected movable member from its first position towards its second position results in movement of the puller wire associated with that selected movable member in a proximal direction with respect to the catheter body and deflection of the tip section in the direction of the puller wire which is moved.
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Accused Products
Abstract
A multi-directional electrode catheter comprising an elongated tubular catheter body, a catheter tip section at the distal end of the catheter body and a control handle at the proximal end of the catheter. The catheter body may have a central lumen, and four off-axis lumens symmetrically positioned about the central lumen. A puller wire extends from the central handle through each off-axis lumen and is anchored to the tip section at a selected location. Within each off-axis lumen in the catheter body, there is provided a compression coil in surrounding relation to the puller wire. The compression coil is fixedly attached to the catheter body at its distal and proximal ends. At its proximal end, each puller wire is attached to a movable piston in the control handle. Moreover, each piston is controlled by an operator using a slidable button fixedly attached to each piston. Movement of a selected button results in movement of a selected puller wire and deflection of the tip section in the direction that puller wire.
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Citations
23 Claims
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1. A multi-directional catheter comprising:
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an elongated catheter body having proximal and distal ends and a central axis, and four off-axis lumens therethrough, said off-axis lumens being arranged symmetrically about the central axis; a catheter tip section fixedly attached to the distal end of the catheter body, said tip section having proximal and distal ends, a central axis, and four off-axis lumens arranged symmetrically about the central axis of the tip section and aligned with the off-axis lumens of the catheter body; a control handle at the proximal end of the catheter body, said control handle comprising a housing and four movable members each member being associated with a different off-axis lumen in the catheter body and aligned off-axis lumen in the tip section, and each movable member being movable between first and second positions relative to the housing; and four elongated puller wires having proximal and distal ends, each puller wire being associated with a different off-axis lumen of the catheter body and aligned off-axis lumen of the tip section, and each puller wire being connected at its proximal end to a separate movable member in the control handle and extending through its associated off-axis lumen in the catheter body and into the aligned off-axis lumen of the tip section and wherein the distal end of the puller wire is fixedly attached to one of a tip electrode mounted on the tip section and the wall of the tip section at a selected location, whereby movement of a selected movable member from its first position towards its second position results in movement of the puller wire associated with that selected movable member in a proximal direction with respect to the catheter body and deflection of the tip section in the direction of the puller wire which is moved. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A multi-directional catheter comprising:
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an elongated catheter body having proximal and distal ends and a central lumen; a catheter tip section fixedly attached to the distal end of the catheter body, said tip section having proximal and distal ends, a central axis, and four off-axis lumens arranged symmetrically about the central axis of the tip section and in communication with the central lumen of the catheter body; a control handle at the proximal end of the catheter body, said control handle comprising a housing and four movable members, each associated with a different off-axis lumen in the catheter tip section, and each movable member being movable between first and second positions relative to the housing; and four elongated puller wires having proximal and distal ends each puller wire being associated with a different off-axis lumen of the catheter tip section, and each puller wire being connected at its proximal end to a separate movable member in the control handle and extending through the central lumen in the catheter body and into its associated off-axis lumen of the tip section and wherein the distal end of the puller wire is fixedly attached to one of a tip electrode mounted on the tip section and the wall of the tip section at a selected location, whereby movement of a selected movable member from its first position towards its second position results in movement of the puller wire associated with that selected movable member in a proximal direction with respect to the catheter body and deflection of the tip section in the direction of the puller wire which is moved. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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Specification