Intracardiac catheter and a method for detecting myocardial ischemia
First Claim
1. An intracardiac catheter for transmitting electric currents from the heart of a living subject to a monitor comprising:
- and electric lead including at least one electric conductor having first and second ends, an electrically insulating sheath covering a substantial portion of the conductor, sensing means connected to the first end of the conductor capable of detecting electric currents inside and emanating from major areas of the heart wall or all of the heart wall, and means connected to the second end of the conductor to connect the electric lead to the monitor; and
means secured to the electric lead for preventing the sensing means from coming into direct contact with the endocardium of the heart for preventing the sensing means from causing a current of injury, said electric lead, sensing means and means preventing the sensing means from coming into contact with the endocardium being sized to pass transvenously or transarterially into a ventricle of the heart.
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Accused Products
Abstract
An intracardiac catheter especially well suited to detect electric currents emanating from any part of the heart wall, and a method for, detecting myocardial ischemia. The intracardiac catheter comprises an electric lead that, in turn, includes at least one electric conductor having first and second ends, an electrically insulating sheath covering a substantial portion of the conductor, a sensor connected to the first end of the conductor to detect electric currents inside and emanating from the heart of a subject, and at least one plug connected to the second end of the conductor to connect the electric lead to a monitor. The catheter further comprises a device secured to the electric lead for preventing the sensor from coming into direct contact with the endocardium of the subject'"'"'s heart.
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Citations
10 Claims
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1. An intracardiac catheter for transmitting electric currents from the heart of a living subject to a monitor comprising:
- and electric lead including at least one electric conductor having first and second ends, an electrically insulating sheath covering a substantial portion of the conductor, sensing means connected to the first end of the conductor capable of detecting electric currents inside and emanating from major areas of the heart wall or all of the heart wall, and means connected to the second end of the conductor to connect the electric lead to the monitor; and
means secured to the electric lead for preventing the sensing means from coming into direct contact with the endocardium of the heart for preventing the sensing means from causing a current of injury, said electric lead, sensing means and means preventing the sensing means from coming into contact with the endocardium being sized to pass transvenously or transarterially into a ventricle of the heart. - View Dependent Claims (2, 3, 4, 5, 6, 7)
- and electric lead including at least one electric conductor having first and second ends, an electrically insulating sheath covering a substantial portion of the conductor, sensing means connected to the first end of the conductor capable of detecting electric currents inside and emanating from major areas of the heart wall or all of the heart wall, and means connected to the second end of the conductor to connect the electric lead to the monitor; and
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8. A method for detecting myocardial ischemia in a living subject comprising:
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inserting sensing means into the interior of the heart of the subject through a vein or artery; preventing the sensing means from coming into direct contact with the endocardium of the heart for preventing the sensing means from producing a current of injury and arranged so as not to reduce the signal strength of the electric currents emanating from the heart; and detecting electric currents inside and emanating from major areas of the heart wall or all of the heart wall through the sensing means. - View Dependent Claims (9, 10)
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Specification