Implantable head mounted neurostimulation system for head pain
First Claim
1. A head located neurostimulator, comprising:
- a main body, the main body comprising;
a power source, anda processor, the processor operable to generate a first and second set of stimulating signals for output on associated first set and second set of stimulating outputs;
a first wire bundle having a first set and a second set of stimulating conductors, each connected to associated ones of the first set and second set of stimulating outputs, respectively;
a first elongated lead body extending from the main body to a distal end, the first elongated lead body configured to contain at least a portion of the first wire bundle, the first elongated lead body being fabricated from a flexible material;
a first array of surface electrodes comprising first electrodes spaced apart by a first inter-electrode spacing and disposed along a first portion of the length of the first elongated lead body, the first array of surface electrodes connected to the first set of stimulating conductors;
a second array of surface electrodes comprising second electrodes spaced apart by a second inter-electrode spacing disposed along a second portion of the length of the first elongated lead body, the second array of surface electrodes connected to the second set of stimulating conductors, wherein the first portion and second portion are separated by an inter array interval, and wherein the first inter-electrode spacing, the second inter electrode spacing and the inter array interval are different distances; and
a covering over the main body fabricated from the flexible material and merged with the flexible material of the first elongated lead body to form a unibody sealed assembly comprised of the main body and the first elongated lead body.
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Accused Products
Abstract
An implantable head-mounted unibody peripheral neurostimulation system is provided for implantation in the head for the purpose of treating chronic head pain, including migraine. The system may include an implantable pulse generator (IPG) from which multiple stimulating leads may extend sufficient to allow for adequate stimulation over multiple regions of the head, preferably including the frontal, parietal and occipital regions. A lead may include an extended body, along which may be disposed a plurality of surface metal electrodes, which may be sub-divided into a plurality of electrode arrays. A plurality of internal metal wires may run a portion of its length and connect the IPG'"'"'s internal circuit to the surface metal electrodes. The IPG may include a rechargeable battery, an antenna, and an application specific integrated circuit. The IPG may be capable of functional connection with an external radiofrequency unit for purposes that may include recharging, diagnostic evaluation, and programming.
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Citations
23 Claims
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1. A head located neurostimulator, comprising:
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a main body, the main body comprising; a power source, and a processor, the processor operable to generate a first and second set of stimulating signals for output on associated first set and second set of stimulating outputs; a first wire bundle having a first set and a second set of stimulating conductors, each connected to associated ones of the first set and second set of stimulating outputs, respectively; a first elongated lead body extending from the main body to a distal end, the first elongated lead body configured to contain at least a portion of the first wire bundle, the first elongated lead body being fabricated from a flexible material; a first array of surface electrodes comprising first electrodes spaced apart by a first inter-electrode spacing and disposed along a first portion of the length of the first elongated lead body, the first array of surface electrodes connected to the first set of stimulating conductors; a second array of surface electrodes comprising second electrodes spaced apart by a second inter-electrode spacing disposed along a second portion of the length of the first elongated lead body, the second array of surface electrodes connected to the second set of stimulating conductors, wherein the first portion and second portion are separated by an inter array interval, and wherein the first inter-electrode spacing, the second inter electrode spacing and the inter array interval are different distances; and a covering over the main body fabricated from the flexible material and merged with the flexible material of the first elongated lead body to form a unibody sealed assembly comprised of the main body and the first elongated lead body. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A unibody implantable neurostimulator, comprising:
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an enclosure having a first enclosed portion and a second enclosed portion, the first enclosed portion and the second enclosed portion comprising a common unibody interior, the common unibody interior comprising; a power source; a processor operable to generate a first stimulation signal and a second stimulation signal wherein the first and second stimulation signals are different signals; and a plurality of outputs comprising a first output for the first stimulation signal and a second output for the second stimulation signal; and a first stimulation lead having one end integrated with the unibody interior, the first stimulation lead having a longitudinal shape and at least one terminus end, the first stimulation lead comprising; a first plurality of stimulation conductors disposed along the length of the first stimulation lead, each having first ends and second ends, wherein a first end of a first one of the first plurality of stimulation conductors is interfaced with the first output and a first end of a second one of the first plurality of stimulation conductors is interfaced with the second output; a first plurality of surface electrodes spaced a first inter-electrode distance apart and disposed along the length of a first portion of the first stimulation lead wherein one of the first plurality of surface electrodes is connected to a second end of the first one of the first plurality of stimulation conductors; and a second plurality of surface electrodes spaced a second inter-electrode distance apart and disposed along the length of a second portion of the first stimulation lead, wherein the second portion and the first portion of the first stimulation lead are separated by a defined inter array interval, wherein the first inter-electrode distance, the second inter-electrode distance and the inter array interval are different distances, and wherein one of the second plurality of surface electrodes is connected to a second end of the second one of the first plurality of stimulation conductors. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19)
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20. A neurostimulator device comprising:
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a main body, the main body comprising; a power source; and a processor, connected to the power source, the processor configured to generate a first set of stimulating signals and a second set of stimulating signals for output on an associated first set and second set of stimulating outputs; a first wire bundle having a first set of conductors connected to the first set of stimulating outputs and a second set of conductors connected to the second set of stimulating outputs; a first elongated lead body extending from the main body to a distal end, the first elongated lead body configured to contain at least a first portion of the first wire bundle, the first elongated lead body being fabricated from flexible material; a first array of surface electrodes having a first inter-electrode spacing and disposed along a first portion of the length of the first elongated lead body, the first array of surface electrodes being connected to the first set of conductors; a second array of surface electrodes having a second inter-electrode spacing different from the first inter-electrode spacing and disposed along a second portion of the length of the first elongated lead body, the second array of surface electrodes being connected to the second set of conductors, the first portion and the second portion of the length of the first elongated lead body being separated by a inter array interval different from both the first and second inter-electrode spacings; and the neurostimulator device being configured for surgical implantation only in subcutaneous tissue of a human'"'"'s head. - View Dependent Claims (21, 22, 23)
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Specification