Implantable Medical Device with Multiple Electrode Lead and Connector with Central Fastener
First Claim
1. An implantable medical apparatus comprising an electrical device having a case and a plurality of electrical contacts on said case, a lead having a distal end and a proximal end and carrying a plurality of electrical conductors, and a connector coupled to a proximal end of said lead, said connector having a central bore a plurality of electrical contacts distributed around said bore, each of said contacts being electrically connected to an electrical conductor in said lead and being spatially arranged to contact one of said electrical contacts on said case, and a fastener coupling said connector to said electrical device, said fastener extending through said bore in said connector and having a wide head, said head distributing compressive force over said electrical contacts in said connector.
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Abstract
An implantable medical device such as a cardiac stimulator, a multi-electrode lead attached to the device, and a connector coupling the device to the lead. The lead has multiple electrodes, each electrode connected to a wire extending though the lead. The electrodes may be circumferential coils or rings, for example. The lead has a connector that fits into a recess on a surface of the device or apparatus. A bottom wall of the recess has an array of apparatus connections deployed around a threaded bore. The connector is attached to the apparatus by a screw with a threaded shaft and an enlarged head. The screw passes through a central bore in the connector. Electrical connections form a regular pattern, such as a rectangular or square grid, or a radial pattern, around the central bore. A pair of O-rings or seals surround the connections. A gasket, mounted on male connections or contacts, fits around female connections that may be on either the apparatus or the connector.
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Citations
26 Claims
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1. An implantable medical apparatus comprising
an electrical device having a case and a plurality of electrical contacts on said case, a lead having a distal end and a proximal end and carrying a plurality of electrical conductors, and a connector coupled to a proximal end of said lead, said connector having a central bore a plurality of electrical contacts distributed around said bore, each of said contacts being electrically connected to an electrical conductor in said lead and being spatially arranged to contact one of said electrical contacts on said case, and a fastener coupling said connector to said electrical device, said fastener extending through said bore in said connector and having a wide head, said head distributing compressive force over said electrical contacts in said connector.
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10. An implantable medical apparatus comprising
an electrical device having a case and a plurality of electrical contacts on said case, a lead having a distal end and a proximal end and carrying a plurality of electrical conductors, a connector coupled to a proximal end of said lead, said connector having a central bore a plurality of electrical contacts distributed around said bore, each of said contacts being electrically connected to an electrical conductor in said lead and being spatially arranged to contact one of said electrical contacts on said case, and a fastener coupling said connector to said electrical device, said fastener extending through said bore in said connector, and a plurality of connector seals, each connector seal configured to surround an electrical contact on said case and an electrical contact on said connector when said connectors are in contact with each other.
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21. An implantable medical apparatus comprising
an electrical device having a case and a plurality of electrical contacts on said case, a lead having a distal end and a proximal end and carrying a plurality of electrical conductors, a connector coupled to a proximal end of said lead, said connector having a plurality of electrical contacts, each of said contacts being connected to at least one of said electrical conductors and being arranged to connect with at least one of said electrical contacts on said case, at least some of said electrical contacts comprising pins, and at least some of said electrical contacts comprising tubes having a proximal end having a slot for receiving an electrical conductor and a distal end having a reduced internal diameter for contacting one of said pins.
Specification