Device for interacting with neurological tissue and methods of making and using the same
First Claim
1. An implantable neurological probe, comprising:
- an elongated shaft having a distal end and an internal lumen;
a support cylinder slidingly disposed in only a distal portion of the internal lumen;
a plurality of shafts coupled to the support cylinder and arranged for selective extension from the distal end of the elongated shaft;
a microelectrode array film comprising a first portion coupled toward the distal end of the elongated shaft and a second portion coupled with the support cylinder, the microelectrode array film comprising a plurality of microelectrode film shafts disposed on each of the plurality of shafts, each of the plurality of microelectrode film shafts comprising a plurality of microelectrode elements, the microelectrode array film further comprising;
a helical ribbon cable that separates the first portion of the microelectrode array film from the second portion of the microelectrode array film, the helical ribbon cable couples each of the plurality of microelectrode elements with a respective proximal contact pad;
a planar substrate having an insulative layer; and
a plurality of conductive traces disposed on the insulative layer; and
a stylet removably disposed in the internal lumen and configured to contact the support cylinder to selectively extend the plurality of shafts during implantation.
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Accused Products
Abstract
Described herein are microelectrode array devices, and methods of fabrication, assembly and use of the same, to provide highly localized neural recording and/or neural stimulation to a neurological target. The device includes multiple microelectrode elements arranged protruding shafts. The protruding shafts are enclosed within an elongated probe shaft, and can be expanded from their enclosure. The microelectrode elements, and elongated probe shafts, are dimensioned in order to target small volumes of neurons located within the nervous system, such as in the deep brain region. Beneficially, the probe can be used to quickly identify the location of a neurological target, and remain implanted for long-term monitoring and/or stimulation.
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Citations
44 Claims
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1. An implantable neurological probe, comprising:
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an elongated shaft having a distal end and an internal lumen; a support cylinder slidingly disposed in only a distal portion of the internal lumen; a plurality of shafts coupled to the support cylinder and arranged for selective extension from the distal end of the elongated shaft; a microelectrode array film comprising a first portion coupled toward the distal end of the elongated shaft and a second portion coupled with the support cylinder, the microelectrode array film comprising a plurality of microelectrode film shafts disposed on each of the plurality of shafts, each of the plurality of microelectrode film shafts comprising a plurality of microelectrode elements, the microelectrode array film further comprising; a helical ribbon cable that separates the first portion of the microelectrode array film from the second portion of the microelectrode array film, the helical ribbon cable couples each of the plurality of microelectrode elements with a respective proximal contact pad; a planar substrate having an insulative layer; and a plurality of conductive traces disposed on the insulative layer; and a stylet removably disposed in the internal lumen and configured to contact the support cylinder to selectively extend the plurality of shafts during implantation. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An implantable neurological probe, comprising:
- an elongated shaft having a distal end and an internal lumen;
a plurality of shafts coupled to a support cylinder, the plurality of shafts arranged for selective extension from the distal end of the elongated shaft; and
a microelectrode array film comprising a first portion coupled toward the distal end of the elongated shaft and a second portion coupled with the support cylinder, the microelectrode array film comprising a plurality of microelectrode film shafts disposed on each of the plurality of shafts, each of the plurality of microelectrode film shafts comprising a plurality of microelectrode elements, the microelectrode array film further comprising;
a helical ribbon cable separating the first portion of the microelectrode array film from the second portion of the microelectrode array film, the helical ribbon cable coupling each of the plurality of microelectrode elements with a respective proximal contact pad;
a planar substrate having an insulative layer; and
a plurality of conductive traces disposed on the insulative layer, wherein the plurality of shafts define a substantially cylindrical volume when fully extended. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21)
- an elongated shaft having a distal end and an internal lumen;
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22. A method of finding a neurological target, comprising:
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implanting a neurological probe within a vicinity of a neurological target site, the neurological probe comprising; an elongated shaft having a distal end and an internal lumen; a support cylinder slidingly disposed in only a distal portion of the internal lumen; a plurality of shafts coupled to the support cylinder and arranged for selective extension from the distal end of the elongated shaft; a microelectrode array film comprising a first portion coupled toward the distal end of the elongated shaft and a second portion coupled with the support cylinder, the microelectrode array film comprising a plurality of microelectrode film shafts disposed on each of the plurality of shafts, each of the plurality of microelectrode film shafts comprising a plurality of microelectrode elements, the microelectrode array film further comprising; a helical ribbon cable separating the first portion of the microelectrode array film from the second portion of the microelectrode array film, the helical ribbon cable coupling each of the plurality of microelectrode elements with a respective proximal contact pad; a planar substrate having an insulative layer; and a plurality of conductive traces disposed on the insulative layer; and a stylet removably disposed in the internal lumen and configured to contact the support cylinder to selectively extend the plurality of shafts during implantation; retracting the plurality of shafts within the internal lumen before surgical implantation; extending the plurality of shafts in the vicinity of the neurological target site following implantation; recording electrophysiological signals from the neurological target site using at least one of the plurality of microelectrode elements; and stimulating the neurological target using at least one of the plurality of microelectrode elements. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29)
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30. A method of finding a neurological target, comprising:
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implanting a neurological probe within a vicinity of a neurological target site, the neurological probe comprising; an elongated shaft having a distal end and an internal lumen; a support cylinder slidingly disposed in only a distal portion of the internal lumen; a plurality of shafts coupled to the support cylinder and arranged for selective extension from the distal end of the elongated shaft; a microelectrode array film comprising a first portion coupled toward the distal end of the elongated shaft and a second portion coupled with the support cylinder, the microelectrode array film comprising a plurality of microelectrode film shafts disposed on each of the plurality of shafts, each of the plurality of microelectrode film shafts comprising a plurality of microelectrode elements, the microelectrode array film further comprising; a helical ribbon cable separating the first portion of the microelectrode array film from the second portion of the microelectrode array film, the helical ribbon cable coupling each of the plurality of microelectrode elements with a respective proximal contact pad; a planar substrate having an insulative layer; and a plurality of conductive traces disposed on the insulative layer; and a stylet removably disposed in the internal lumen and configured to contact the support cylinder to selectively extend the plurality of shafts during implantation; retracting the plurality of shafts within the internal lumen before surgical implantation; expanding the plurality of shafts in the vicinity of the neurological target site following implantation; applying an oscillating electric current between at least two of the plurality of microelectrode elements; and detecting an electric voltage between at least two of the plurality of microelectrode elements. - View Dependent Claims (31, 32, 33, 44)
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34. A method of finding a neurological target, comprising:
- implanting a neurological probe within a vicinity of a neurological target site, the neurological probe comprising;
an elongated shaft having a distal end and an internal lumen;
a plurality of shafts coupled to a support cylinder, the plurality of shafts arranged for selective extension from the distal end of the elongated shaft; and
a microelectrode array film comprising a first portion coupled toward the distal end of the elongated shaft and a second portion coupled with the support cylinder, the microelectrode array film comprising a plurality of microelectrode film shafts disposed on each of the plurality of shafts, each of the plurality of microelectrode film shafts comprising a plurality of microelectrode elements, the microelectrode array film further comprising;
a helical ribbon cable separating the first portion of the microelectrode array film from the second portion of the microelectrode array film, the helical ribbon cable coupling each of the plurality of microelectrode elements with a respective proximal contact pad;
a planar substrate having an insulative layer; and
a plurality of conductive traces disposed on the insulative layer; and
wherein the plurality of shafts define a substantially cylindrical volume when fully extended;
retracting the plurality of shafts within the internal lumen before surgical implantation;
extending the plurality of shafts in the vicinity of the neurological target site following implantation;
recording electrophysiological signals from the neurological target site using at least one of the plurality of microelectrode elements; and
stimulating the neurological target using at least one of the plurality of microelectrode elements. - View Dependent Claims (35, 36, 37, 38, 39, 40, 41)
- implanting a neurological probe within a vicinity of a neurological target site, the neurological probe comprising;
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42. A method of finding a neurological target, comprising:
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implanting a neurological probe within a vicinity of a neurological target site, the neurological probe comprising; an elongated shaft having a distal end and an internal lumen; a plurality of shafts coupled to a support cylinder, the plurality of shafts arranged for selective extension from the distal end of the elongated shaft; and a microelectrode array film comprising a first portion coupled toward the distal end of the elongated shaft and a second portion coupled with the support cylinder, the microelectrode array film comprising a plurality of microelectrode film shafts disposed on each of the plurality of shafts, each of the plurality of microelectrode film shafts comprising a plurality of microelectrode elements, the microelectrode array film further comprising; a helical ribbon cable separating the first portion of the microelectrode array film from the second portion of the microelectrode array film, the helical ribbon cable coupling each of the plurality of microelectrode elements with a respective proximal contact pad; a planar substrate having an insulative layer; and a plurality of conductive traces disposed on the insulative layer, wherein the plurality of shafts define a substantially cylindrical volume when fully extended; retracting the plurality of shafts within the internal lumen before surgical implantation; extending the plurality of shafts in the vicinity of the neurological target site following implantation; applying an oscillating electric current between at least two of the plurality of microelectrode elements on at least one of the plurality of shafts; detecting an electric voltage between at least two of the plurality of microelectrode elements on at least one of the plurality of shafts. - View Dependent Claims (43)
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Specification