Central base coils for deep transcranial magnetic stimulation
First Claim
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1. A coil for magnetic stimulation, the coil comprising:
- a base portion includinga central axis defining a base portion right side and a base portion left side, wherein said base portion right side is positioned on a right side of said central axis and said base portion left side is positioned on a left side of said central axis,multiple right side stimulating coil segments, said right side stimulating coil segments positioned in said base portion right side, including an innermost right side stimulating coil element which is closest to said central axis and an outermost right side stimulating coil element which is furthest from said central axis, wherein said multiple right side stimulating coil segments are configured to carry electrical current in substantially a first direction, andmultiple left side stimulating coil segments, said left side stimulating coil segments positioned in said base portion left side, including an innermost left side stimulating coil segment which is closest to said central axis and an outermost left side stimulating coil segment which is furthest from said central axis, wherein said multiple left side stimulating coil segments are configured to carry electrical current in substantially said first direction, wherein said outermost right side stimulating coil segment is at a distance of at least 3 centimeters from said outermost left side stimulating coil segment; and
a return portion includingmultiple right side return coil segments positioned on the right side of said central axis, wherein each of said right side return coil segments corresponds to one of said multiple right side stimulating coil segments and wherein each of said right side return coil segments is positioned further away from said central axis than its corresponding right side stimulating coil segment, wherein said multiple right side return coil segments are substantially parallel to one another and wherein each of said multiple right side return coil segments is configured to carry electrical current in substantially a second direction, wherein said second direction is an opposite direction to said first direction, andmultiple left side return coil segments positioned on the left side of said central axis, wherein each of said left side return coil segments corresponds to one of said multiple left side stimulating coil segments elements and wherein each of said left side return coil segments is positioned further away from said central axis than its corresponding left side stimulating coil segment, wherein said multiple left side return coil segments are substantially parallel to one another and wherein each of said multiple left side return coil segments is configured to carry electrical current in substantially said second direction,wherein said return portion is spaced a distance away from said base portion.
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Abstract
A transcranial magnetic stimulation coil which is location-specific for medial brain regions or lateral brain regions is designed with multiple spaced apart stimulating elements having current flow in a first direction, and multiple return elements having current flow in a second direction which is opposite the first direction. The multiple stimulating elements are distributed around a central axis of the coil.
3 Citations
19 Claims
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1. A coil for magnetic stimulation, the coil comprising:
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a base portion including a central axis defining a base portion right side and a base portion left side, wherein said base portion right side is positioned on a right side of said central axis and said base portion left side is positioned on a left side of said central axis, multiple right side stimulating coil segments, said right side stimulating coil segments positioned in said base portion right side, including an innermost right side stimulating coil element which is closest to said central axis and an outermost right side stimulating coil element which is furthest from said central axis, wherein said multiple right side stimulating coil segments are configured to carry electrical current in substantially a first direction, and multiple left side stimulating coil segments, said left side stimulating coil segments positioned in said base portion left side, including an innermost left side stimulating coil segment which is closest to said central axis and an outermost left side stimulating coil segment which is furthest from said central axis, wherein said multiple left side stimulating coil segments are configured to carry electrical current in substantially said first direction, wherein said outermost right side stimulating coil segment is at a distance of at least 3 centimeters from said outermost left side stimulating coil segment; and a return portion including multiple right side return coil segments positioned on the right side of said central axis, wherein each of said right side return coil segments corresponds to one of said multiple right side stimulating coil segments and wherein each of said right side return coil segments is positioned further away from said central axis than its corresponding right side stimulating coil segment, wherein said multiple right side return coil segments are substantially parallel to one another and wherein each of said multiple right side return coil segments is configured to carry electrical current in substantially a second direction, wherein said second direction is an opposite direction to said first direction, and multiple left side return coil segments positioned on the left side of said central axis, wherein each of said left side return coil segments corresponds to one of said multiple left side stimulating coil segments elements and wherein each of said left side return coil segments is positioned further away from said central axis than its corresponding left side stimulating coil segment, wherein said multiple left side return coil segments are substantially parallel to one another and wherein each of said multiple left side return coil segments is configured to carry electrical current in substantially said second direction, wherein said return portion is spaced a distance away from said base portion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A coil for magnetic stimulation, the coil comprising:
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a base portion including a central axis defining a base portion right side and a base portion left side, wherein said base portion right side is positioned on a right side of said central axis and said base portion left side is positioned on a left side of said central axis, multiple right side stimulating coil segments, said right side stimulating coil segments positioned in said base portion right side, including an innermost right side stimulating coil segment which is closest to said central axis and an outermost right side stimulating coil segment which is furthest from said central axis, wherein said multiple right side stimulating coil segments are configured to carry electrical current in substantially a first direction, and multiple left side stimulating coil segments, said left side stimulating coil segments positioned in said base portion left side, including an innermost left side stimulating coil segment which is closest to said central axis and an outermost left side stimulating coil segment which is furthest from said central axis, wherein said multiple left side stimulating coil segments are configured to carry electrical current in substantially said first direction, wherein said innermost right side stimulating coil segment is at a distance from said innermost left side stimulating coil segment; and a return portion including multiple right side return coil segments positioned on the right side of said central axis, wherein each of said right side return coil segments corresponds to one of said multiple right side stimulating coil segments and wherein each of said right side return coil segments is positioned further away from said central axis than its corresponding right side stimulating coil segment, wherein said multiple right side return coil segments are substantially parallel to one another and wherein each of said multiple right side return coil segments is configured to carry electrical current in substantially a second direction, wherein said second direction is an opposite direction to said first direction, and multiple left side return coil segments positioned on the left side of said central axis, wherein each of said left side return coil segments corresponds to one of said multiple left side stimulating coil segments and wherein each of said left side return coil segments is positioned further away from said central axis than its corresponding left side stimulating coil segment, wherein said multiple left side return coil segments are substantially parallel to one another and wherein each of said multiple left side return coil segments is configured to carry electrical current in substantially said second direction, wherein said return portion is spaced a distance away from said base portion. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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Specification