Omni-directional steerable catheter
First Claim
1. A control handle for a steerable catheter comprising:
- a housing comprising an outer wall, a hollow interior and a longitudinal slot through the outer wall into the interior;
a piston movable longitudinally within the interior of the housing;
a button mounted exterior to the housing connected to the piston through the longitudinal slot, said button being movable along the length of the slot in response to manual pressure on the button whereby movement of the button along the length of the slot results in longitudinal movement of the piston; and
means for adjusting the amount of pressure required to move the button along the length of the slot.
0 Assignments
0 Petitions
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.
226 Citations
13 Claims
-
1. A control handle for a steerable catheter comprising:
-
a housing comprising an outer wall, a hollow interior and a longitudinal slot through the outer wall into the interior; a piston movable longitudinally within the interior of the housing; a button mounted exterior to the housing connected to the piston through the longitudinal slot, said button being movable along the length of the slot in response to manual pressure on the button whereby movement of the button along the length of the slot results in longitudinal movement of the piston; and means for adjusting the amount of pressure required to move the button along the length of the slot. - View Dependent Claims (2, 3, 4, 5)
-
-
6. A control handle for a steerable catheter comprising:
-
a housing comprising an outer wall, and a hollow interior, at least one pair of opposing pistons each connectable to a puller wire, said pistons being movable longitudinally within the housing; means for longitudinally moving each piston within the housing; and means for preventing simultaneous longitudinal movement of both opposing piston. - View Dependent Claims (7, 8)
-
-
9. A control handle for a steerable catheter comprising:
-
a housing having a central axis and four off-axis lumens, forming two pairs of diametrically-opposed lumens; and four movable members, each member being associated with and slidable within a different off-axis lumen in the housing, each movable member being movable between first and second positions relative to the housing. - View Dependent Claims (10, 11, 12, 13)
-
Specification