Importance

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Abstract

A pacemaker bipolar lead assembly, for being electrically connected to a pulse generator to transmit electrical pulses into a heart, that includes a pair of wire conductor spring coils electrically connected to conductor pins, the first coil being electrically connected to a tip electrode and the second coil being electrically connected to a ring electrode. An internal ring having an outwardly facing groove is press fitted within the ring electrode with the second coil extending through the groove to retain the second coil in electrical conducting relationship with the ring electrode. Electrical insulation is provided on the coils and the conductor pins except for one end portions of the pins, the part of the second coil that is in electrical contact with the ring electrode and the juncture of the first coil with the tip electrode. An insulated portion of the first coil extends through the internal ring.

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First Claim