Multi-element tip electrode mapping catheter
First Claim
1. A mapping catheter comprising:
- a catheter body having an outer wall, proximal and distal ends and at least one lumen extending therethrough;
a handle at the proximal end of the catheter body;
a tip section comprising;
a flexible tubing having proximal and distal ends and at least one lumen extending therethrough, wherein the proximal end of the flexible tubing is fixedly attached to the distal end of the catheter body;
an electromagnetic sensor for producing electrical signals indicative of the location of the electromagnetic sensor;
a multi-element tip electrode mounted at the distal end of the tip section comprising a plurality of cylindrical electrode members electrically isolated from one another by a non-conductive matrix and arranged such that, during use of the catheter within the heart, at least two different electrode members are capable of contacting the endocardium tissue at one time;
an electromagnetic sensor cable electrically connected to the electromagnetic sensor and extending through the tip section, catheter body and handle for carrying electrical signals from the electromagnetic sensor to a circuit board; and
a plurality of electrode lead wires, each lead wire being electrically connected to an electrode member and extending through the tubing, catheter body and handle.
1 Assignment
0 Petitions
Accused Products
Abstract
A mapping catheter comprises a catheter body, a handle and a tip section. The catheter body has an outer wall, proximal and distal ends and at least one lumen extending therethrough. The handle is at the proximal end of the catheter body. The tip section comprises a flexible tubing having proximal and distal ends and at least one lumen extending therethrough. The proximal end of the flexible tubing is fixedly attached to the distal end of the catheter body. The tip section comprises an electromagnetic sensor for producing electrical signals indicative of the location of the electromagnetic sensor. The tip section further comprises a multi-element tip electrode mounted at the distal end of the tip section comprising a plurality of electrode members electrically isolated from one another and arranged such that, during use of the catheter within the heart, at least two different electrode members are capable of contacting the endocardium tissue at one time. An electromagnetic sensor cable electrically connect the electromagnetic sensor and extends through the tip section, catheter body and handle for carrying electrical signals from the electromagnetic sensor to a circuit board. The catheter further comprises a plurality of electrode lead wires, each lead wire being electrically corrected to an electrode member and extending through the tubing, catheter body and handle.
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Citations
12 Claims
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1. A mapping catheter comprising:
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a catheter body having an outer wall, proximal and distal ends and at least one lumen extending therethrough; a handle at the proximal end of the catheter body; a tip section comprising; a flexible tubing having proximal and distal ends and at least one lumen extending therethrough, wherein the proximal end of the flexible tubing is fixedly attached to the distal end of the catheter body; an electromagnetic sensor for producing electrical signals indicative of the location of the electromagnetic sensor; a multi-element tip electrode mounted at the distal end of the tip section comprising a plurality of cylindrical electrode members electrically isolated from one another by a non-conductive matrix and arranged such that, during use of the catheter within the heart, at least two different electrode members are capable of contacting the endocardium tissue at one time; an electromagnetic sensor cable electrically connected to the electromagnetic sensor and extending through the tip section, catheter body and handle for carrying electrical signals from the electromagnetic sensor to a circuit board; and a plurality of electrode lead wires, each lead wire being electrically connected to an electrode member and extending through the tubing, catheter body and handle. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A system for determining the direction and/or velocity of electrical activity in a heart , the system including:
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(a) a mapping catheter comprising; a catheter body having an outer wall, proximal and distal ends and at least one lumen extending therethrough; a handle at the proximal end of the catheter body; a tip section comprising; a flexible tubing having proximal and distal ends and at least one lumen extending therethrough, wherein the proximal end of the flexible tubing is fixedly attached to the distal end of the catheter body; an electromagnetic sensor for producing electrical signals indicative of the location of the electromagnetic sensor; a multi-element tip electrode mounted at the distal end of the tip section comprising a plurality of electrode members electrically isolated from one another by a non-conductive matrix and arranged such that, during use different electrode members are capable of contacting the endocardium tissue at one time; an electromagnetic sensor cable electrically connected to the electromagnetic sensor and extending through the tip section, catheter body and handle for carrying electrical signals from the electromagnetic sensor to a circuit board; and a plurality of electrode lead wires, each lead wire being electrically connected to an electrode member and extending through the tubing, catheter body and handle; (b) means for receiving, analyzing and displaying information concerning the location of the catheter tip section and of the electrical activity in the heart, and information concerning the direction and/or velocity of the electrical activity in the heart, the means being electrically connected to the electrode lead wires and to the sensor cable.
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8. A method for determining the direction and/or velocity of electrical activity in a heart chamber, comprising:
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(a) providing a mapping catheter comprising; a catheter body having an outer wall, proximal and distal ends and at least one lumen extending therethrough; a handle at the proximal end of the catheter body; a tip section comprising; a flexible tubing having proximal and distal ends and at least one lumen extending therethrough, wherein the proximal end of the flexible tubing is fixedly attached to the distal end of the catheter body; an electromagnetic sensor for producing electrical signals indicative of the location of the electromagnetic sensor; a multi-element tip electrode mounted at the distal end of the tip section comprising a plurality of electrode members electrically isolated from one another by a non-conductive matrix and arranged such that, during use of the catheter within the heart, at least two different electrode members are capable of contacting the endocardium tissue at one time; an electromagnetic sensor cable electrically connected to the electromagnetic sensor and extending through the tip section, catheter body and handle for carrying electrical signals from the electromagnetic sensor to a circuit board; and a plurality of electrode lead wires, each lead wire being electrically connected to an electrode member and extending through the tubing, catheter body and handle; (b) inserting the catheter into the heart and contacting the distal end of the tip section with heart tissue whereby at least two electrode members are in contact with a location of the myocardium; (c) determining the location of the myocardium in contact with the at least two electrode members and the direction and/or velocity of the electrical activity at that location. - View Dependent Claims (9, 10, 11, 12)
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Specification