Electrophysiology loop catheter
First Claim
1. An electrophysiology catheter comprising:
- a handle having a distal end and a proximal end, the handle including an actuator;
a flexible shaft having a proximal end and a distal end and a longitudinal axis that extends along a length of the shaft, the proximal end of the shaft being attached to the distal end of the handle;
a tip assembly having a proximal end and a distal end, the proximal end of the tip assembly being attached to the distal end of the shaft, and the tip assembly including a wire formed of a superelastic material and shaped to bias the tip assembly in a first orientation; and
a cable, attached to the actuator and the tip assembly, that extends through the shaft, the cable being adapted to change an orientation of the tip assembly from the first orientation in response to movement of the actuator.
2 Assignments
0 Petitions
Accused Products
Abstract
An electrophysiology catheter including control, localization, and/or fluid delivery features, and methods of using the same. One embodiment of the invention is directed to an electrophysiology catheter including a superelastic wire and a cable, and a method of controlling the catheter using the cable. Another embodiment is directed to an electrophysiology catheter including an adhesive to bias the orientation of the catheter. A further embodiment is directed to an electrophysiology catheter including adhesive and one or more cables, and a method of controlling the catheter using the one or more cables. Another embodiment is directed to a method including acts of injecting a fluid into the heart of a patient and adjusting the diameter of an arcuate curve of the catheter. Further embodiments are directed to a catheter having multiple position sensors on an arcuate curve of the catheter, or a position sensor associated with a movable electrode of the catheter.
203 Citations
96 Claims
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1. An electrophysiology catheter comprising:
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a handle having a distal end and a proximal end, the handle including an actuator;
a flexible shaft having a proximal end and a distal end and a longitudinal axis that extends along a length of the shaft, the proximal end of the shaft being attached to the distal end of the handle;
a tip assembly having a proximal end and a distal end, the proximal end of the tip assembly being attached to the distal end of the shaft, and the tip assembly including a wire formed of a superelastic material and shaped to bias the tip assembly in a first orientation; and
a cable, attached to the actuator and the tip assembly, that extends through the shaft, the cable being adapted to change an orientation of the tip assembly from the first orientation in response to movement of the actuator. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. An electrophysiology catheter comprising:
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a handle having a distal end and a proximal end, the handle including an actuator;
a flexible shaft having a proximal end and a distal end and a longitudinal axis that extends along a length of the shaft, the proximal end of the shaft being attached to the distal end of the handle; and
a tip assembly having a proximal end and a distal end, the proximal end of the tip assembly being attached to the distal end of the shaft and the tip assembly including an adhesive cured in a configuration to bias the tip assembly in a first orientation. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 35, 36)
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32. An electrophysiology catheter comprising:
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a handle having a distal end and a proximal end, the handle including an actuator;
a flexible shaft having a proximal end and a distal end and a longitudinal axis that extends along a length of the shaft, the proximal end of the shaft being attached to the distal end of the handle;
a tip assembly having a proximal end and a distal end, the proximal end of the tip assembly being attached to the distal end of the shaft and the tip assembly including an adhesive cured in a configuration to support the tip assembly in a first orientation including an arcuately curved shape at the distal end of the tip assembly having a first radius of curvature;
a first cable, attached to the actuator and the tip assembly, that extends through the shaft, the first cable being adapted to change an orientation of the tip assembly from the first orientation to a second orientation including an arcuately curved shape at the distal end of the tip assembly having a second radius of curvature larger than the first radius of curvature in response to movement of the actuator; and
a second cable, attached to the actuator and the tip assembly, that extends through the shaft, the second cable being adapted to change the orientation of the tip assembly from the second orientation to the first orientation in response to movement of the actuator.
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33. An electrophysiology catheter comprising:
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a handle having a distal end and a proximal end, the handle including an actuator;
a flexible shaft having a proximal end and a distal end and a longitudinal axis that extends along a length of the shaft, the proximal end of the shaft being attached to the distal end of the handle;
a tip assembly having a proximal end and a distal end, the proximal end of the tip assembly being attached to the distal end of the shaft and the tip assembly including an adhesive cured in a configuration to support the tip assembly in a first orientation including a bend at the proximal end of the tip assembly having a first angle of approximately ninety degrees relative to the longitudinal axis of the shaft;
a first cable, attached to the actuator and the tip assembly, that extends through the shaft, the first cable being adapted to change an orientation of the tip assembly from the first orientation to a second orientation including a bend at the proximal end of the tip assembly having a second angle relative to the longitudinal axis that is smaller than the first angle in response to movement of the actuator; and
a second cable, attached to the actuator and the tip assembly, that extends through the shaft, the second cable being adapted to change the orientation of the tip assembly from the second orientation to the first orientation in response to movement of the actuator. - View Dependent Claims (34)
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37. A method of shaping a tip assembly of a catheter, comprising acts of:
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injecting an adhesive into a lumen of the catheter that extends along the tip assembly of the catheter; and
curing the adhesive by maintaining a portion of the tip assembly of the catheter in a fixed position for a time sufficient to allow the adhesive to bias the tip assembly in a particular orientation. - View Dependent Claims (38, 39, 40, 41, 42, 43)
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44-73. -73. (canceled)
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74. A flexible shaft of a catheter device, the shaft comprising:
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a catheter body having a proximal end and a distal end and a longitudinal axis that extends along a length of the catheter body; and
a channel formed of a superelastic material and shaped to bias a portion of the catheter body in a first orientation.
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75-94. -94. (canceled)
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95. An electrophysiology catheter, comprising:
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a handle having a distal end and a proximal end, the handle including an actuator;
a flexible shaft having a proximal end and a distal end and a longitudinal axis that extends along a length of the shaft, the proximal end of the shaft being attached to the distal end of the handle;
a tip assembly having a proximal end and a distal end, the proximal end of the tip assembly being attached to the distal end of the shaft, and the tip assembly including a channel formed of a superelastic material and shaped to bias the tip assembly in a first orientation; and
a cable, attached to the actuator and the tip assembly and extending through the channel, the cable being adapted to change an orientation of the tip assembly from the first orientation in response to movement of the actuator.
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96-101. -101. (canceled)
Specification