Sequential cardiostimulation system (DDD) using a single electrocatheter inserted through the coronary sinus
First Claim
1. Electrocatheter for sequential cardiostimulation, comprising one or more atrial electrodes and one or more ventricular electrodes connectable to a dual-chamber pacemaker, said electrocatheter being suitably shaped to allow the insertion thereof into the coronary sinus so as to position the atrial electrode within the coronary sinus in correspondence of the left atrium of the heart, and the ventricular electrode within the great cardiac vein where the anterior interventricular begins, in correspondence of the left ventricle, wherein said ventricular electrode is located in proximity of the distal end of the catheter to allow for ventricular stimulation and sensing, and wherein the atrial electrode is suitably spaced from the ventricular electrode and shaped for atrial stimulation and sensing.
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Abstract
Electrocatheter for sequential cardiostimulation, comprising one or more atrial electrodes and one or more ventricular electrodes connectable to a dual chamber pacemaker via respective interface connectors, said electrocatheter being suitably shaped to allow the insertion thereof into the coronary sinus so as to position the atrial electrodes within the coronary sinus in correspondence of the left atrium of the heart, and the ventricular electrodes within the great cardiac vein where the anterior interventricular begins, in correspondence of the left ventricle, wherein the ventricular electrodes are located close to the distal end of the catheter to allow the ventricular stimulation and sensing, and wherein the atrial electrodes are suitably spaced from the ventricular ones and disposed upstream thereof to permit the atrial stimulation and sensing. (FIG. 1)
104 Citations
20 Claims
- 1. Electrocatheter for sequential cardiostimulation, comprising one or more atrial electrodes and one or more ventricular electrodes connectable to a dual-chamber pacemaker, said electrocatheter being suitably shaped to allow the insertion thereof into the coronary sinus so as to position the atrial electrode within the coronary sinus in correspondence of the left atrium of the heart, and the ventricular electrode within the great cardiac vein where the anterior interventricular begins, in correspondence of the left ventricle, wherein said ventricular electrode is located in proximity of the distal end of the catheter to allow for ventricular stimulation and sensing, and wherein the atrial electrode is suitably spaced from the ventricular electrode and shaped for atrial stimulation and sensing.
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9. A sequential cardiostimulation electrocatheter comprising:
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an atrial electrode for atrial stimulation and sensing; a body, said body having a shape for insertion into a coronary sinus to position said atrial electrode within the coronary sinus in correspondence of a left atrium of a heart; a connector positioned on one end of said body, said connector being connectable to a dual-chamber pacemaker; a ventricular electrode positioned on said body at a position adjacent a distal end of said body substantially opposite said connector, said ventricular electrode being positioned on said body, having a shape, and being electrically connectable to the dual-chamber pacemaker through said connector, for ventricular stimulation and sensing, said body being shaped to position said ventricular electrode within a great cardiac vein where said anterior interventricular vein begins; an atrial electrode positioned on said body at a position spaced from said ventricular electrode, said atrial electrode being positioned on said body, having a shape, and being electrically connectable to the dual-chamber pacemaker through said connector for atrial stimulation and sensing. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A sequential cardiostimulation electrocatheter comprising:
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a body, said body includes a first section with first and second substantially straight portions, said first and second portions being angularly spaced by an angle in a range of 50 to 80 degrees, said first and second portions being joined by a curvilinear portion, said body also including a second section with a diameter less than a diameter of said first section, said second section being positioned at an end of said first section substantially opposite said connector; a connector positioned on one end of said body and connected to said first portion, said connector being connectable to a dual-chamber pacemaker; a ventricular electrode positioned on said second section of said body at a position adjacent a distal end of said body substantially opposite said connector, said ventricular electrode being positioned on said body, having a shape, and being electrically connectable to the dual-chamber pacemaker through said connector, for ventricular stimulation and sensing; an atrial electrode positioned on said second portion of said body at a position spaced from said ventricular electrode, said atrial electrode being positioned on said body, having a shape, and being electrically connectable to the dual-chamber pacemaker through said connector for atrial stimulation and sensing.
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20. A sequential cardiostimulation electrocatheter comprising:
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a body, said body being curved to form a concavity; a connector positioned on one end of said body, said connector being connectable to a dual-chamber pacemaker; a ventricular electrode positioned on said body at a position adjacent a distal end of said body substantially opposite said connector, said ventricular electrode being positioned on said body, having a shape, and being electrically connectable to the dual-chamber pacemaker through said connector, for ventricular stimulation and sensing; an atrial electrode positioned on said body at a position spaced from said ventricular electrode, said atrial electrode being positioned on said body, having a shape, and being electrically connectable to the dual-chamber pacemaker through said connector for atrial stimulation and sensing, an active surface of said atrial electrode only facing said concavity of said body.
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Specification