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公开(公告)号：US10518098B2
公开(公告)日：2019-12-31
申请号：US15300979
申请日：2015-04-02
发明人： Liyi Elliott Hong , Fow-Sen Choa
摘要： The present invention discloses methods and systems to control magnetic fields and magnetic field induced currents, and more particularly to provide stimulations within a patient's body, such as deep brain stimulation, in a non-invasive manner and with greater focus and control than has been afforded by prior known methods and systems. In accordance with certain aspects of an embodiment, an array of magnetic coils is provided and positionable about a portion of a patient's body. During operation, at least some of the magnetic coils function as DC coil pairs configured to generate a DC magnetic field, while at least some DC coil of the other magnetic coils function as transient magnetic field generators to generate an induced current within a portion of the patient's body, such as in a region of the patient's brain. The system is configured such that the DC magnetic fields may be used to manipulate the transient magnetic fields, in turn allowing significantly improved control and focus of the induced current within a specifically desired volume of interest within a patient's body.
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公开(公告)号：US20200222709A1
公开(公告)日：2020-07-16
申请号：US16739650
申请日：2020-01-10
发明人： L. Elliot Hong , Fow-Sen Choa , Qinglei Meng
IPC分类号： A61N2/02 , H01F7/20 , H01F27/28 , H01F27/255 , A61N2/00
摘要： Disclosed is an electromagnetic coil system for use during transcranial or transdermal stimulation procedures, in which an electrically conductive coil wraps around a magnetic core at an oblique wrapping angle to provide a more directed focal spot size at a given depth inside of, for example, a patient's body. In certain configurations, the electrically conductive coil may be adjustable with respect to the magnetic core, such that the wrapping angle of the electrically conductive coil may be modified to, in turn, adjust the focal spot size of the induced electric field generated by the system as may desired to concentrate the field at a particularly desired location.
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公开(公告)号：US11850441B2
公开(公告)日：2023-12-26
申请号：US16739650
申请日：2020-01-10
发明人： L. Elliot Hong , Fow-Sen Choa , Qinglei Meng
IPC分类号： A61N2/02 , H01F7/20 , H01F27/28 , A61N2/00 , H01F27/255
CPC分类号： A61N2/02 , A61N2/004 , H01F7/20 , H01F27/255 , H01F27/28
摘要： Disclosed is an electromagnetic coil system for use during transcranial or transdermal stimulation procedures, in which an electrically conductive coil wraps around a magnetic core at an oblique wrapping angle to provide a more directed focal spot size at a given depth inside of, for example, a patient's body. In certain configurations, the electrically conductive coil may be adjustable with respect to the magnetic core, such that the wrapping angle of the electrically conductive coil may be modified to, in turn, adjust the focal spot size of the induced electric field generated by the system as may desired to concentrate the field at a particularly desired location.
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公开(公告)号：US10758740B2
公开(公告)日：2020-09-01
申请号：US15403348
申请日：2017-01-11
发明人： Liyi Elliot Hong , Fow-Sen Choa
IPC分类号： A61N2/00
摘要： Disclosed are systems, devices and methods for detecting and measuring TMS-induced electrical fields. In accordance with certain aspects of an embodiment of the invention, a TMS sensor probe is provided having a field detector, a first electrical connection connecting the field detector to either a power source or a processor, and a second electrical connection connecting the field detector to a processor. The field detector is configured to measure a characteristic of a TMS-induced electrical field at the location of the field detector, and the processor is configured to receive the measured characteristic of the induced electrical fields and display a human-readable depiction of a calculated induced electrical field. A system using such a sensor probe to calibrate a TMS-induced electrical field is also provided, including the foregoing sensor probe, and a magnetic field generator.
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公开(公告)号：US20170197087A1
公开(公告)日：2017-07-13
申请号：US15403348
申请日：2017-01-11
发明人： Liyi Elliot Hong , Fow-Sen Choa
摘要： Disclosed are systems, devices and methods for detecting and measuring TMS-induced electrical fields. In accordance with certain aspects of an embodiment of the invention, a TMS sensor probe is provided having a field detector, a first electrical connection connecting the field detector to either a power source or a processor, and a second electrical connection connecting the field detector to a processor. The field detector is configured to measure a characteristic of a TMS-induced electrical field at the location of the field detector, and the processor is configured to receive the measured characteristic of the induced electrical fields and display a human-readable depiction of a calculated induced electrical field. A system using such a sensor probe to calibrate a TMS-induced electrical field is also provided, including the foregoing sensor probe, and a magnetic field generator.
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