Methods and systems employing intracranial electrodes for neurostimulation and/or electroencephalography
First Claim
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1. An intracranial electrode comprising:
- a shaft including a distal contact surface adapted to electrically contact a surface of a patient'"'"'s brain;
a head associated with the shaft, the head being sized to be positioned subcutaneously adjacent the patient'"'"'s skull; and
threads carried by at least one of the head and the shaft, the threads being adapted to fix the electrode with respect to the patient'"'"'s skull;
the electrode having an adjustable length adapted to change a contact force of the distal contact surface against the surface of the brain by adjusting the length of the electrode.
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Abstract
Aspects of the invention relate to intracranial electrodes and methods for implanting and using intracranial electrodes. In one particular example, an intracranial electrode includes a shaft having a distal contact surface adapted to electrically contact a surface of a patient'"'"'s brain, a head associated with the shaft, and threads adapted to fix the electrode with respect to the patient'"'"'s skull. This electrode may have an adjustable length adapted to change a contact force of the distal contact surface against the surface of the brain by adjusting the length of the electrode.
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Citations
51 Claims
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1. An intracranial electrode comprising:
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a shaft including a distal contact surface adapted to electrically contact a surface of a patient'"'"'s brain;
a head associated with the shaft, the head being sized to be positioned subcutaneously adjacent the patient'"'"'s skull; and
threads carried by at least one of the head and the shaft, the threads being adapted to fix the electrode with respect to the patient'"'"'s skull;
the electrode having an adjustable length adapted to change a contact force of the distal contact surface against the surface of the brain by adjusting the length of the electrode. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. An intracranial electrode comprising:
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a shaft including a distal contact surface adapted to electrically contact a surface of a patient'"'"'s brain;
a head associated with the shaft, the head being sized to be positioned subcutaneously adjacent the patient'"'"'s skull;
threads carried by at least one of the head and the shaft, the threads being adapted to fix the electrode with respect to the patient'"'"'s skull; and
adjustment means adapted to adjust a length of the electrode to change a contact force of the distal contact surface against the surface of the brain.
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19. An intracranial electrode, comprising:
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an electrically conductive member having a blunt contact surface;
a dielectric member having an interior in which the electrically conductive member is received; and
an anchor carried by the electrically conductive member or the dielectric member and adapted to anchor at least one of the electrically conductive member and the dielectric member with respect to a patient'"'"'s skull adjacent a brain surface such that the contact surface is in electrical contact with the brain surface and the dielectric member electrically insulates the skull from the electrically conductive member. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
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30. A neurostimulator system comprising:
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an intracranial electrode having a shaft including a distal contact surface adapted to electrically contact a surface of a patient'"'"'s brain;
a head associated with the shaft, the head being sized to be positioned subcutaneously adjacent the patient'"'"'s skull; and
threads carried by at least one of the head and the shaft, the threads being adapted to fix the electrode with respect to the patient'"'"'s skull;
a lead adapted to be subcutaneously implanted beneath the patient'"'"'s scalp, the lead having a first portion adapted to be electrically coupled to the contact surface and an electrically insulated implantable length; and
a pulse system adapted to be implanted in the patient'"'"'s body at a location spaced from the electrode, the pulse system being operatively coupled to the electrode via the lead to deliver an electrical stimulus to the brain via the electrode. - View Dependent Claims (31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41)
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42. A method of implanting an intracranial electrode, comprising:
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advancing a threaded electrode through a patient'"'"'s skull until a contact surface of the electrode is in atraumatic contact with a surface of the patient'"'"'s brain;
electrically coupling the threaded electrode to a lead;
covering a head of the electrode and a length of the lead with the patient'"'"'s scalp, thereby enclosing the electrode; and
delivering an electrical stimulus to the patient'"'"'s brain via the electrode, the electrical stimulus being generated by a pulse system electrically coupled to the electrode by the lead. - View Dependent Claims (43, 44, 45, 46, 47, 48, 49, 50, 51)
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Specification