Methods and systems employing intracranial electrodes for neurostimulation and/or electroencephalography
First Claim
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1. A method for implanting an intracranial electrode, comprising:
- passing an elongate conductive member into a borehole extending through a patient'"'"'s skull;
advancing the elongate conductive member into the patient'"'"'s brain so that the elongate conductive member extends into the patient'"'"'s subcortical tissue; and
threadably rotating a shaft of the electrode into engagement with a wall of the borehole to secure the shaft in the borehole and crimp the elongate conductive member against the wall of the borehole after advancing the elongate conductive member into the patient'"'"'s brain.
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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
36 Claims
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1. A method for implanting an intracranial electrode, comprising:
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passing an elongate conductive member into a borehole extending through a patient'"'"'s skull; advancing the elongate conductive member into the patient'"'"'s brain so that the elongate conductive member extends into the patient'"'"'s subcortical tissue; and threadably rotating a shaft of the electrode into engagement with a wall of the borehole to secure the shaft in the borehole and crimp the elongate conductive member against the wall of the borehole after advancing the elongate conductive member into the patient'"'"'s brain. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An intracranial electrode system, comprising:
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a shaft; a head associated with the shaft, the head being sized to be positioned subcutaneously adjacent a patient'"'"'s skull; and an elongate conductive member carried by at least one of the head and the shaft, the elongate conductive member being positioned to extend into the patient'"'"'s subcortical tissue, the elongate conductive member and the shaft being movable relative to each other during implantation of the electrode in the patient, the elongate conductive member being electrically coupled to at least one of the shaft and the head, wherein at least one of the head and the shaft includes a rotatable fitting having an aperture, and wherein the elongate conductive member is slideably received in the aperture of the fitting, further wherein the rotatable fitting is rotatable relative to the shaft to change an orientation angle between an axial axis of the shaft and an axial axis of the elongate conductive member. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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19. An intracranial electrode system, comprising:
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a shaft; a head associated with the shaft, the head being sized to be positioned subcutaneously adjacent a patient'"'"'s skull; and an elongate conductive member carried by at least one of the head and the shaft, the elongate conductive member being positioned to extend into the patient'"'"'s subcortical tissue, the elongate conductive member and the shaft being movable relative to each other during implantation of the electrode in the patient, wherein at least one of the head and the shaft includes a rotatable fitting having an aperture, and wherein the elongate conductive member is slideably received in the aperture of the fitting, further wherein the rotatable fitting is rotatable relative to the shaft to change an orientation angle between an axial axis of the shaft and an axial axis of the elongate conductive member. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27)
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28. A method for implanting an intracranial electrode, comprising:
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securing a shaft of the electrode in a borehole extending through a patient'"'"'s skull; passing an elongate conductive member into the borehole; while the shaft is in the borehole, rotating a fitting carried by the shaft relative to the shaft until an axis of an aperture through the fitting has a selected angular orientation relative to the shaft, then sliding the elongate member through the aperture in the fitting and into the patient'"'"'s brain; and advancing the elongate conductive member into the patient'"'"'s brain so that the elongate conductive member extends into the patient'"'"'s subcortical tissue. - View Dependent Claims (29, 30, 31, 32, 33, 34, 35, 36)
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Specification