Right ventricular outflow tract defibrillation lead
First Claim
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1. A cardioversion/defibrillation lead for location in a human heart, comprising:
- an elongated lead body having a proximal section extending distally from a proximal end of said lead body and a distal section extending proximally from a distal end of said lead body and having an intermediate section including a first loop portion and two leg portions, a first of said leg portions extending from a second loop portion located at a distal end of said proximal lead section, toward said proximal end of said lead body and ending at said first loop portion, a second of said leg portions extending distally from said first loop portion toward the distal end of said lead body;
means for introducing said intermediate section and said distal section into the right ventricle of the heart with said distal section directed into the apex of the right ventricle of the heart and for locating said first loop portion in the outflow tract of the heart to urge one of said leg portions against the septum of the heart between the outflow tract and the apex;
an elongated defibrillation electrode extending along at least said first and second leg portions;
a conductor located within said lead body, coupled to said defibrillation electrode and extending to said proximal section of said lead body; and
connector means coupled to said proximal section of said lead body for electrically coupling said conductor to an implantable defibrillator.
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Abstract
A cardioversion/defibrillation lead and method of implantation thereof for location in a human heart of the type comprising an elongated lead body having proximal and distal end sections and having a looped intermediate section. The proximal and distal end sections of the lead have generally straight configurations, and the intermediate section is constructed such that when the distal section is located at the apex of the right ventricle of the heart, the loop of the intermediate section is located in the outflow tract of the heart. One or more elongated defibrillation electrode(s) extends along the intermediate section of the lead body.
126 Citations
16 Claims
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1. A cardioversion/defibrillation lead for location in a human heart, comprising:
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an elongated lead body having a proximal section extending distally from a proximal end of said lead body and a distal section extending proximally from a distal end of said lead body and having an intermediate section including a first loop portion and two leg portions, a first of said leg portions extending from a second loop portion located at a distal end of said proximal lead section, toward said proximal end of said lead body and ending at said first loop portion, a second of said leg portions extending distally from said first loop portion toward the distal end of said lead body; means for introducing said intermediate section and said distal section into the right ventricle of the heart with said distal section directed into the apex of the right ventricle of the heart and for locating said first loop portion in the outflow tract of the heart to urge one of said leg portions against the septum of the heart between the outflow tract and the apex; an elongated defibrillation electrode extending along at least said first and second leg portions; a conductor located within said lead body, coupled to said defibrillation electrode and extending to said proximal section of said lead body; and connector means coupled to said proximal section of said lead body for electrically coupling said conductor to an implantable defibrillator. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method of locating a cardioversion/defibrillation lead in a heart, comprising:
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advancing into the heart an elongated lead body having a proximal section extending distally from a proximal end of said lead body and a distal section extending proximally from a distal end of said lead body and having an intermediate section carrying an elongated electrode and including a first loop portion and two leg portions, a first of said leg portions extending from a second loop section at a distal end of said proximal lead section, toward said proximal end of said lead body and ending at said first loop portion, a second of said leg portions extending distally from said first loop portion back toward the distal end of said lead body; introducing said intermediate section and said distal section into the right ventricle of the heart with said distal end section directed into the apex of the right ventricle of the heart and locating said first loop portion in the outflow tract of the heart to urge one of said leg portions against the septum of the heart between the outflow tract and the apex. - View Dependent Claims (13, 14, 15, 16)
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Specification