Importance

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Abstract

A dual chamber implantable cardioverter defibrillator (ICD) is configured for enabling quadrapolar dual lead systems, having differing lead connector configurations, to properly function in corresponding quadrapolar ports of the ICD. A header assembly, mounted on the ICD provides an electrical junction point between the cardiac leads and electrical circuitry in the ICD. The header assembly includes at least two ports therein, wherein each port includes a first and a second substantially longitudinal bore. Terminal blocks are located in the first bores, and spring clip contacts are located in the second bores. Electrical isolation is provided between electrical contacts located in the ports and corresponding lead connectors. A jumper connection includes electrical connection to certain spring clip contacts, one contact being located in a separate port. Subsequently, cardiac leads with differing lead connectors may be inserted into the ports to enable proper function.

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First Claim