Systems and methods for vector stimulation in medical treatment
First Claim
1. A system for transcranial magnetic stimulation, the system comprising:
- at least a first electromagnetic stimulating coil configured for providing a first partial signal field;
at least a second electromagnetic stimulating coil configured for providing a second partial signal field, wherein the first coil and second coil are further configured to be sufficiently close and oriented to cause at least the partial summation of the first and second partial signal fields in order to approximately create a vector signal in at least a portion of a neural target of a deep brain region; and
,a control subsystem designed to control stimulation circuitry that is designed for creating and providing a first partial stimulation signal at the first stimulating coil and second partial stimulating signal at the second coil, wherein at least one of the first and second stimulating signals has a selected frequency or temporal characteristic that is selected to match a characteristic of brain activity of a patient and the signals are defined to produce a vector stimulation signal in approximately said neural target of a deep brain region, said vector stimulation signal being designed to provide therapy to the patient.
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Abstract
Stimulation treatments for medical disorders comprise providing stimulation parameters that create partial stimulation signals which combine into vector signals. The individual partial signals may have frequency or temporal content that is unique rather than all being identical. Vector signals may thus be designed with certain advantageous characteristics such as to influence target tissue in an intended manner while partial signals may be designed with other advantageous characteristics such as to avoid producing side effects in adjacent tissue. Roving of stimulation parameters can be designed to influence partial signals, vectors signals, or both. Partial and vector signals may be designed to match or avoid internal/endogenous activity patterns and rhythms of a patient. Methods for choosing, creating and using partial signals are disclosed. Tissue modulation may be accomplished with electrical and/or magnetic stimulation.
3 Citations
20 Claims
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1. A system for transcranial magnetic stimulation, the system comprising:
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at least a first electromagnetic stimulating coil configured for providing a first partial signal field; at least a second electromagnetic stimulating coil configured for providing a second partial signal field, wherein the first coil and second coil are further configured to be sufficiently close and oriented to cause at least the partial summation of the first and second partial signal fields in order to approximately create a vector signal in at least a portion of a neural target of a deep brain region; and
,a control subsystem designed to control stimulation circuitry that is designed for creating and providing a first partial stimulation signal at the first stimulating coil and second partial stimulating signal at the second coil, wherein at least one of the first and second stimulating signals has a selected frequency or temporal characteristic that is selected to match a characteristic of brain activity of a patient and the signals are defined to produce a vector stimulation signal in approximately said neural target of a deep brain region, said vector stimulation signal being designed to provide therapy to the patient. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method for providing transcranial magnetic stimulation, the method comprising:
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operating at least a first electromagnetic stimulating coil configured for providing a first partial signal; operating at least a second electromagnetic stimulating coil configured for providing a second partial signal field, wherein the first coil and second coil are further configured to be sufficiently close and oriented to cause at least the partial summation of the first and second partial signal fields in order to approximately create a vector signal in at least a portion of a neural target of a deep brain region; and
,operating a control subsystem designed to control stimulation circuitry that is designed for creating and providing a first partial stimulation signal at the first stimulating coil and second partial stimulating signal at the second coil, wherein least one of the first and second stimulating signals has a selected frequency or temporal characteristic that is selected to match a characteristic of brain activity of a patient, and the signals are defined to produce a vector stimulation signal in approximately said neural target of a deep brain region, said vector stimulation signal being designed to provide therapy to the patient. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A method for providing transcranial magnetic stimulation, the method comprising:
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operating at least a first electromagnetic stimulating coil configured for providing a first partial signal field; operating at least a second electromagnetic stimulating coil configured for providing a second partial signal field, wherein the first coil and second coil are further configured to be sufficiently close and oriented to cause at least the partial summation of the first and second partial signal fields in order to approximately create a vector signal in at least a portion of a neural target of a deep brain region; and
,operating a control subsystem designed to control stimulation circuitry that is designed for creating and providing a first partial stimulation signal at the first stimulating coil and second partial stimulating signal at the second coil, wherein least one of the first and second stimulating signals has a selected frequency or temporal characteristic that is selected to not-match a characteristic of brain activity of a patient, and the signals are defined to produce a vector stimulation signal in approximately said neural target of a deep brain region, said vector stimulation signal being designed to provide therapy to the patient.
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Specification