Implantable electrode and sensor lead apparatus
First Claim
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1. A flexible electrode cardioversion or defibrillation lead for use in a transvenous lead system for supplying electrotherapy to the heart comprising:
- an inner conductive layer;
an insulative layer surrounding said inner conductive layer;
an outer conductive layer surrounding said insulative layer; and
an outer conductive sheath surrounding at least a portion of said outer conductive layer;
wherein said sheath is formed from a flexible, biocompatible material having a non-abrasive effect on cardiac tissue during operation of said lead, said material comprising intrinsically conducting polymers, said material being able to supply a cardioverting/defibrillating energy discharge having a magnitude of up to 40 Joules.
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Abstract
A transvenous cardioversion lead system capable of delivering electrical energy to cardiac tissue is provided. Lead system comprises an inner conductor surrounded by an insulative layer which, in turn, is surrounded by a second conductor mounted coaxially with the inner conductor. At least a portion of the second conductor is surrounded by an outer conductive sheath formed from a suitable material having an non-abrasive affect. This prevents damage to cardiac tissue during normal transvenous operating position while at the same time preventing thrombogenesis on the lead surface.
90 Citations
2 Claims
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1. A flexible electrode cardioversion or defibrillation lead for use in a transvenous lead system for supplying electrotherapy to the heart comprising:
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an inner conductive layer; an insulative layer surrounding said inner conductive layer; an outer conductive layer surrounding said insulative layer; and an outer conductive sheath surrounding at least a portion of said outer conductive layer; wherein said sheath is formed from a flexible, biocompatible material having a non-abrasive effect on cardiac tissue during operation of said lead, said material comprising intrinsically conducting polymers, said material being able to supply a cardioverting/defibrillating energy discharge having a magnitude of up to 40 Joules. - View Dependent Claims (2)
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Specification