486results about "Magnetotherapy using coils/electromagnets" patented technology

The invention discloses a transcranial magnetic navigation and curative effect evaluation system based on electroencephalogram power spectrum analysis, particularly relates to the technical field of electroencephalogram signal processing, and is used for solving the technical problem that existing transcranial magnetic stimulation treatment lacks interference evaluation and stimulation path optimization on a cortical collaborative area. According to the method, electroencephalogram signals of a testee in a resting state and a task state are collected, phase-amplitude coupling indexes between frequency bands are extracted, a frequency-crossing coupling matrix is constructed, a nested chain structure with modulation direction consistency is identified, a stable resonance channel group is extracted from a channel intersection set to form a collaborative active region, and the collaborative active region is constructed. And after mapping to a standard brain map, carrying out space matching with a TMS target spot, evaluating an interference risk level, formulating a stimulation avoidance strategy, recording side reactions during treatment, and constructing a curative effect scoring window in a normalization manner, so as to realize synchronous optimization of stimulation planning and curative effect evaluation.

Provided herein are methods of treating a patient comprising providing a medical apparatus comprising an external system and an implantable system, implanting the implantable system, and delivering at least one of power or data to the implantable system with the external system. The external system comprises: at least one external antenna configured to transmit a first transmission signal to the implantable system; an external transmitter configured to drive the at least one external antenna; an external power supply; and an external controller. The implantable system comprises: at least one implantable antenna configured to receive the first transmission signal from the first external device; an implantable receiver; at least one implantable functional element configured to interface with the patient; an implantable controller; an implantable energy storage assembly; and an implantable housing surrounding at least the implantable controller and the implantable receiver. Medical apparatus are also provided.

The invention belongs to the technical field of transcranial magnetic stimulation coil design, and particularly provides a transcranial magnetic stimulation coil design method and system based on an inverse boundary element method.The method comprises the steps that firstly, a stream function calculation formula based on the inverse boundary element method and a regulation and control mechanism of current density constraint on wire spacing are deduced; and completing the design of the rat frontal and parietal lobe targeted stimulation coil. Aiming at the frontal top lobe area of a rat, a reverse method of an inverse boundary element method is adopted, the interference of the coil on experimental observation is reduced, and a small cambered surface TMS coil is designed. Compared with a circular coil and an 8-shaped coil of a conventional human body commercial coil which is reduced in equal ratio, the half-value volumes of the coil are respectively reduced by 79.78% and 57.14%, and the focusing degree of stimulation is remarkably improved; meanwhile, by adding the current density constraint, on the premise that the influence on the stimulation effect is small, the minimum distance between the wires is increased to 1.02 mm from 0.39 mm, and the feasibility of coil winding is ensured.

The disclosure relates to devices and methods for applying a magnetic field on a body of a patient. The time-varying magnetic field may applied to a brain of the patient. The disclosure provides a method of finding the position suitable for application of the magnetic field to the brain. The devices and methods of the disclosure may be suitable for reducing of food craving.

The invention discloses an MEP automatic measurement and threshold discrimination method and system based on a mechanical arm. The MEP automatic measurement and threshold discrimination method comprises the following steps: constructing a scalp hotspot probability distribution map based on a brain map; dividing the hotspot scalp map into a plurality of sub-regions, and selecting candidate points from the plurality of sub-regions to obtain a candidate scalp stimulation point list; carrying out transcranial magnetic stimulation according to a point position sequence of the candidate scalp stimulation point list, simultaneously collecting a motor evoked potential signal triggered by each stimulation, and simultaneously collecting a motor evoked potential signal triggered by each stimulation; preprocessing and feature extraction are carried out on the collected motor evoked potential signals, whether stimulation evokes effective MEP response or not is judged through a response judgment method, and a candidate point-MEP response database is formed; screening an optimal motion hotspot point location in the candidate area, and taking the optimal motion hotspot point location as a target site; and searching an individualized resting motion threshold value on the optimal motion hotspot point location.

The invention relates to the field of medical treatment, and discloses a method for treating chronic insomnia by percutaneous magnetic stimulation of stellate ganglion block, which comprises the following steps: preprocessing: determining the initial position of stellate ganglion, tissue initial parameters and initial stimulation parameters through multi-modal image positioning and initialization to obtain reference data; dynamic sensing: collecting neck tissue displacement data, temperature field data and electromyographic signals in real time, and calculating spatial position variation of stellate ganglions and time-varying parameters of tissue electromagnetic characteristics; and modeling optimization: constructing a time-varying electromagnetic field distribution model based on the reference data, the spatial position variable quantity and the time-varying parameters. The method comprises the following steps: acquiring neck tissue displacement, a temperature field and an electromyographic signal in real time through reference data, capturing a stellate ganglion space position change and tissue electromagnetic property time-varying rule, constructing a time-varying electromagnetic field distribution model, and solving target stimulation parameters adaptive to a real-time tissue state through an optimal control algorithm.

Offline prior to operation, an optimised control sequence is derived for a pulse system comprising a reactive circuit for generating electromagnetic pulses, such as a transcranial magnetic stimulation circuit, and cascaded switching modules for switchably connecting capacitive discharge elements to provide a multi-level output voltage for the reactive circuit. A discrete-time model predicts an electrical state of the pulse system. A target profile for an electromagnetic pulse is received. For respective time-steps of the control sequence taken in succession, an optimal path of switching states over a window of time-steps starting with the respective time-step is derived, optimising a cost function having a deviation cost contribution representing deviation of an electrical state of the pulse system predicted by the discrete-time model from the target profile over the window. The switching state of the determined path at the respective time-step is selected for the control sequence.

The disclosure relates to devices and methods for applying a magnetic field on a body of a patient. The time-varying magnetic field may applied to a brain of the patient. The disclosure provides a method of finding the position suitable for application of the magnetic field to the brain. The devices and methods of the disclosure may be suitable for reducing of food craving.

The disclosure relates to devices and methods for applying a magnetic field on a body of a patient. The time-varying magnetic field may applied to a brain of the patient. The disclosure provides a method of finding the position suitable for application of the magnetic field to the brain. The devices and methods of the disclosure may be suitable for reducing of food craving.

The disclosure relates to devices and methods for applying a magnetic field on a body of a patient. The time-varying magnetic field may applied to a brain of the patient. The disclosure provides a method of finding the position suitable for application of the magnetic field to the brain. The devices and methods of the disclosure may be suitable for reducing of food craving.

The disclosure relates to devices and methods for applying a magnetic field on a body of a patient. The time-varying magnetic field may applied to a brain of the patient. The disclosure provides a method of finding the position suitable for application of the magnetic field to the brain. The devices and methods of the disclosure may be suitable for reducing of food craving.

The invention relates to a non-invasive brain stimulation self-adaptive closed-loop regulation and control system. The system comprises a task interaction module which is configured to present a time sensing task to a target object and receive an interaction instruction of the target object; the non-invasive brain stimulation module is used for performing non-invasive brain stimulation; the sensing acquisition module is used for acquiring electroencephalogram data and behavioral data of a target object; the closed-loop regulation and control module comprises at least one block-level regulation and control primary unit, and each block-level regulation and control primary unit comprises a plurality of block-level regulation and control primary units; the trial secondary regulation and control primary unit is used for generating a first feature vector in real time on the basis of the currently collected electroencephalogram data and behavioral data so as to obtain a stimulation parameter of the next trial in the current block; the block-level regulation and control first-level unit is used for processing the currently collected electroencephalogram data and behavioral data to obtain a second feature vector, and based on the second feature vector, adaptive search is carried out under security constraints to obtain stimulation parameters of a next block. By adopting the method, the stability of the stimulation effect can be improved.

The present invention relates to a helmet-type magnetic stimulation device for providing non-invasive treatment by applying a magnetic field to cranial nerve cells or scalp cells, the helmet-type magnetic stimulation device comprising: a helmet-type case part; a magnetic field generation part for generating a magnetic field in order to apply a magnetic field to the head; and a fixing part installed on one inner side of the case part to fix and support the magnetic field generation part at a predetermined position on the head. Therefore, the present invention includes a magnetic field generation part for generating a magnetic field in order to apply a magnetic field to the head, inside the case part.

The subject matter of the present disclosure generally relates to techniques for neuromodulation of a tissue that include applying energy (e.g., ultrasound energy) into the tissue to cause altered activity at a synapse between a neuron and a non-neuronal cell.

The invention relates to the technical field of magnetic therapy, and discloses an electromagnetic physical therapy device which comprises a framework, a coil, a magnetic needle, a cooling fin and a supporting sleeve, the framework is provided with an up-down through assembly hole, the coil is wound on the periphery of the framework, the supporting sleeve is provided with an up-down through magnetic needle cavity, and the bottom of the supporting sleeve is provided with a protruding block extending outwards. The magnetic needle is fixed in the magnetic needle cavity, the supporting sleeve extends into the assembling hole of the framework, the protruding block extends out of the assembling hole and is attached to the bottom face of the framework, the cooling fin is provided with a vertically-through cooling hole, a groove is formed in the periphery of the top of the cooling hole, the top of the cooling hole is fixedly connected with the bottom of the framework, and the cooling hole corresponds to the assembling hole in position. The groove accommodates the protruding block so that the protruding block can be clamped by the framework and the cooling fin, and therefore the magnetic needle can be fixed in the assembling hole, the assembling hole does not need to be filled with pouring sealant, and the magnetic needle and the framework can be detached from each other.

The invention relates to the technical field of medical instruments, in particular to a magnetic control pulse type pelvic floor nerve muscle stimulator and a parameter optimization system thereof. Comprising a host, a dynamic layered pulse waveform generation technology module, a multi-target reinforcement learning parameter optimization module, a multi-modal biofeedback fusion and VR enhancement module, and a flexible wearable stimulation array and ultrasonic targeting module. The system has the advantages that real-time data and deep learning are achieved, and personalized precise treatment is achieved, in the actual use process, the dynamic layered pulse waveform generation technology module predicts the requirements of muscles in the next stage through a deep learning model on the basis of pelvic floor electromyographic signals, pressure data and infrared thermal imaging which are collected in real time, and the treatment accuracy is improved. Dynamically generating a composite pulse waveform; the multi-objective reinforcement learning parameter optimization module constructs a'state-action-reward 'reinforcement learning framework, and takes patient treatment feedback, muscle force improvement, pain score and treatment compliance as reward signals.

Systems and methods can be implemented in which an electromagnetic charge is used to strengthen, tone, and firm muscle tissues. For example, a magnetic muscle stimulation device may be provided that includes a processor and a device applicator having a housing and a coil positioned within in the housing. The processor may be configured to receive parameters for operation of the device applicator, and to cause, based on the received parameters, an alternating current to flow through the coil to generate a time-varying magnetic field that induces an integrated electric charge or electrical conductivity in a portion of tissue under a skin surface of a patient.

Systems and methods for neuronavigation in accordance with embodiments of the invention are illustrated. Targeting systems and methods as described herein can generate personalized stimulation targets for the treatment of mental conditions. In many embodiments, direct stimulation of a personalized the stimulation target indirectly impacts a brain structure that is more difficult to reach via the stimulation modality. In various embodiments, the mental condition is major depressive disorder. In a number of embodiments, the mental condition is suicidal ideation.

A system and method for determining and modifying the electromagnetic activity of a patient's heart includes a sensor array, a controller, software, and a stimulator array. The sensor array includes one or more sensors, such as an ECG electrode, that detect the electromagnetic activity of a patient's heart. The sensor array is in data communication with the controller. The controller runs software that outputs in human-format sensor data provided by the sensor array. The software receives data from the controller, analyzes the data, presents the data to the user, and sends the data to the stimulator array via a data communication link. The stimulator array includes one or more electromagnets and at least one or more light-emitting diodes. The stimulator array emits an electromagnetic (and / or light) field to modify the electromagnetic activity of a patient's heart based on the data it receives from the controller. The system can be portable.

The present application relates to a kind of brain stimulation target point fast positioning method based on facial recognition and AI neural navigation, by obtaining the MRI data of user's head, construct the three-dimensional digital brain model including brain function partition information;Acquisition facial three-dimensional point cloud, with the head surface model reconstructed by MRI registration, establish the space mapping of actual head and brain model;Based on this mapping, determine stimulation target point on model.In treatment, real-time tracking head pose using optical system, and in navigation interface fusion display brain model, target point and the real-time position and angle of magnetic stimulation coil.Determine the best target stimulation angle of coil according to the gyri and sulci orientation of target point, guide operator to adjust coil pose by comparing the difference between real-time angle and target angle.The present application realizes the fast, accurate, visual positioning and dynamic maintenance of target point in transcranial magnetic stimulation treatment, and upgrades the traditional experience-dependent operation to individualized, real-time feedback precision navigation treatment.

This utility model relates to an innovation of a carotid artery vasodilator that can be used at home and in the emergency room as a supplement to drug treatment for conditions such as carotid artery obstruction in the neck region. It increases the production of nitric oxide mediated by endothelial nitric oxide synthase in the intact endothelial layer of the carotid artery, which is located on the inner surface of the neck brace. It can be applied for a certain period of time for each patient. The intermittent or continuous operation function can be selected through an adjustable power circuit. It only affects the lesion area and does not affect the patient's peripheral blood vessels. It can be used in situations where nitrates may be prohibited. It prevents the reduction of blood flow to the brain tissue that may occur due to jugular venous constriction. The flexible structure of the applicator neck brace (9) can be maintained in the application area for a long time and includes a pulsed magnetic field (PMF).

According to one embodiment of the present invention, a massage device may be provided. The massage device may include: a seat supporting at least a portion of a user's body and including a backrest portion and a seat portion; the massage module is arranged on the backrest part; a magnetic field module disposed in the seat part; and a control unit that controls the magnetic field module to generate a magnetic field toward the body of the user. The magnetic field module may include: an upper cover; a lower cover coupled to the upper cover; a coil disposed in a first space between the upper cover and the lower cover; an inner cover provided to protrude from the lower cover and to support the coil at a position adjacent to the upper cover; and a fan provided so as to be able to cool the coil. In addition to this, various embodiments may be applied.

The invention discloses a transcranial magnetic stimulation head target point pose determination method and device and a medium. Relates to the field of magnetic stimulation treatment equipment, and solves the problems that a mechanical arm is not reachable, the posture is not stable or the mechanical arm interferes with the surrounding environment due to the fact that only a unique target posture is determined in the transcranial magnetic stimulation treatment process. The method comprises the following steps: firstly, establishing a head three-dimensional model, determining a three-dimensional coordinate and a unit normal vector of a target spot, converting the head three-dimensional model into a spherical model, establishing a spherical coordinate system, and simultaneously dividing into a plurality of non-overlapping space partitions; calling a corresponding rotation angle mapping strategy to generate a plurality of candidate rotation angles based on a space partition to which a target point belongs, constructing a target pose matrix for each candidate rotation angle, solving a joint angle solution through inverse kinematics, then carrying out constraint condition screening, finally determining an executable pose, and carrying out pose adjustment only by using a rotation freedom degree of a treatment beat around a normal direction. A plurality of pose selection spaces are provided for the mechanical arm, and the execution rate of poses is greatly improved.

A system which can be used for carrying out a method for determining an efficacy of a transcranial magnetic stimulation (TMS) treatment, including: delivering TMS to a patient using a TMS protocol in a TMS treatment session; recording EEG signals before and after the delivering during the treatment session; recording EEG signals after completion of the treatment session; analyzing the recorded EEG signals to generate values of one or more EEG parameters; determining an acute effect and an intermediate effect of the TMS protocol on a brain state of the patient based on a change in values of the one or more EEG parameters; determining an efficacy of the TMS protocol based on the determined acute effect and the intermediate effect.

The invention discloses a magnetic stimulation signal output method and device of magnetic stimulation equipment, a magnetic stimulation system and a computer readable storage medium, and the method comprises the steps: receiving a magnetic pulse output instruction, and at least obtaining a standard curve, a magnetic pulse output mode and a pulse set value according to the magnetic pulse output instruction; sampling the standard curve according to set sampling times to obtain sampling data; according to a magnetic pulse output mode, multiplying the pulse set value by each piece of sampling data to obtain pulse data of each magnetic pulse in the string magnetic pulse signal; wherein the pulse data is pulse frequency and / or pulse amplitude; and outputting each magnetic pulse of the string magnetic pulse signal according to the pulse data. According to the technical scheme, flexible and diversified change adjustment of the magnetic pulse signal can be realized, the problem of adaptive fatigue of human muscles and the like is effectively avoided, and the physiotherapy effect of the magnetic stimulation equipment is ensured.

The utility model relates to a magnetic stimulation treatment seat. According to the technical scheme, the magnetic stimulation treatment seat is characterized by comprising a seat body, a hip treatment module, a waist treatment module and a control module are arranged on the seat body; the control module is electrically connected with the hip treatment module and the waist treatment module. The seat body comprises a sitting and sleeping integrated bin, a supporting and fixing frame and a base. One end of the supporting and fixing frame is hinged to the sitting and sleeping integrated bin, and the other end of the supporting and fixing frame is hinged to the base; a driving module is arranged in the base; the output end of the driving module is in transmission connection with the supporting and fixing frame; when a patient is treated, the chair face and the backrest support the body at the same time for treatment, the chair can be overturned front and back, the most comfortable sitting posture of the human body is achieved, the fatigue state of user treatment is effectively improved, the multifunctional and multi-position treatment scheme of the magnetic therapy chair can be achieved, the structure is simple and stable, cost is saved, transfer of other equipment treatment stations is omitted, time and labor are saved, and experience is good.

The present specification discloses a photobiomodulation therapy garment having a garment structure configured to be donned by a user atop a skin surface with one or more near-infrared light sources integrated with the garment structure. The near-infrared light source is configured to emit near-infrared light directed to one or more regions of interest of the skin at a wavelength between 600 nm to 1600 nm and at a predetermined dosimetry and duration. A controller with a processor and memory is in communication near-infrared light source to control the operational parameters of the near-infrared light source.

Systems and methods for destroying or inhibiting cancer cells and other rapidly-dividing cells including an alternating polarity (AP) magnetic field generator and one or more AP electromagnetic coil adapted to be coupled to at least a portion of a patient's body, and a controller to control the AP magnetic field generator and at least one AP electromagnetic coil and cause the field generator and coil to apply AP magnetic field having a frequency of 0.5-500 KHz and a field strength of 0.5-5 mT to the at least a portion of the patient's body area to achieve a desired inhibiting effect on cancer cells or other rapidly-dividing cells. Treatments provided by the system may be co-administered with an anti-cancer therapy such as a chemotherapy drug, a hormone therapy drug, targeted therapy drugs, immunotherapy drugs, an angiogenesis inhibitor drug, or tumor treatment field therapy.

Embodiments provide a method for determining an alternating magnetic field (AMF) transmitter design that produces a magnetic field that achieves a more uniform surface current or heating of an implant. Embodiments may utilize the method to be applicable to different geometries of implants and AMF transmitters. Embodiments produce a non-uniform magnetic field that in turn produces a more uniform current density / distribution on the implant surface. This leads to uniform heating and consistent biofilm reduction, while minimizing damage to adjacent tissues. Also, the differences in electrical properties such as conductivity, permittivity, and permeability of the implant components can be factored into the design process to achieve a uniform current density / distribution across components. An ultimate benefit derived from embodiments described herein is consistent biofilm reduction, inactivation, eradication, destruction, and / or removal and improved safety arising from heat conduction into surrounding tissues.

Disclosed is a multi-locus TMS (transcranial magnetic stimulation) transducer, including one or more transducer modules configured (i.e., adapted) to be positioned on a scalp of a subject for TMS, each of the one or more transducer modules including five or more coils for TMS of a cortical target of a subject.