Catheter with deflectable distal section
First Claim
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1. An elongated catheter assembly comprising:
- a) an elongated catheter which has proximal and distal sections, an inner lumen extending therein and at least one electrode on a distal portion thereof; and
b) an internal deflection means disposed within the inner lumen of the catheter which has a deflectable distal tip portion and which is free to axially rotate within the inner lumen of the catheter and with respect to the catheter so that rotation of the internal deflection means within the inner lumen of the catheter will allow the distal portion of the catheter to be deflected about a longitudinal axis of the catheter without axially rotating the catheter.
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Abstract
An electrophysiology catheter assembly having a deflection mechanism rotatably disposed within an inner lumen of the catheter so that deflection of the deflection mechanism within the inner lumen results in a deflection of the distal portion of the catheter. Rotation of the deflection mechanism within the inner lumen of the catheter allows universal deflection of the distal portion of the catheter about its longitudinal axis. The deflection mechanism may be first rotated and then deflected or it may be first deflected and then rotated in a deflected condition. The catheter shaft does not need to be rotated to change the shape of its distal portion.
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Citations
22 Claims
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1. An elongated catheter assembly comprising:
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a) an elongated catheter which has proximal and distal sections, an inner lumen extending therein and at least one electrode on a distal portion thereof; and b) an internal deflection means disposed within the inner lumen of the catheter which has a deflectable distal tip portion and which is free to axially rotate within the inner lumen of the catheter and with respect to the catheter so that rotation of the internal deflection means within the inner lumen of the catheter will allow the distal portion of the catheter to be deflected about a longitudinal axis of the catheter without axially rotating the catheter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. An elongated electrophysiology catheter assembly comprising:
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a) an elongated intravascular catheter which has proximal and distal sections, an inner lumen extending therein, a plurality of electrodes on a distal portion thereof and a plurality of electrical conductors, each electrically connected to an electrode; and b) an internal deflection means disposed within a deflectable distal tip portion and which is free to axially rotate within the inner lumen of the catheter and with respect to the catheter so that rotation of the internal deflection means within the inner lumen of the catheter will allow the distal portion of the catheter to be deflected about a longitudinal axis of the catheter without axially rotating the catheter.
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Specification