Patent ID: 6088610
Filing Date: 2000-07-11
Classification: A61B

Abstract:
A method for detecting electrical activity within a patient'sa) producing into the vasculature of a patient's body a first intravascular device which includesan elongated shaft having proximal and distal ends, a port in the distal end, an inner lumen extending therein in communication with the port in the distal end and a plurality of electrical conductors extending from a distal portion of the shaft to a proximal portion thereof, anda plurality of sensing electrode pairs situated on the distal portion of the shaft, each sensing electrode of a plurality of electrode pairs being electrically connected to a separate electrical conductor;b) introducing into the vasculature of the patient's body a second intravascular device longer than the first device which is slidably disposed within the inner lumen of the first intravascular device, which is configured to extend through the port in the distal end of the first intravascular device and which includesan elongated shaft having a plurality of electrical conductors extending from a distal portion to a proximal portion thereof, anda plurality of sensing electrode pairs situated on the distal portion of the shaft of the second intravascular device, each sensing electrode of a Plurality of electrode pairs being electrically connected to a separate electrical conductor;c) moving the first and second intravascular devices within the patient's vasculature so that the distal portion of the first device is positioned therein with the electrodes thereon at a first desired intravascular location and the distal portion of the second intravascular device extending out the port in the distal end of the first intravascular device with the electrodes thereon at a second desired intravascular location distal to the first intravascular location; andd) detecting electrical activity by means of a plurality of electrode pairs on both the first and second intravascular devices.