39 results about "Cortex motor" patented technology

Induced movement in a patient is detected and correlated with a TMS stimulating pulse so as to determine the patient's motor threshold stimulation level. Direct visual or audible feedback is provided to the operator indicating that a valid stimulation has occurred so that the operator may adjust the stimulation accordingly. A search algorithm may be used to direct a convergence to the motor threshold stimulation level with or without operator intervention. A motion detector is used or, alternatively, the motion detector is replaced with a direct motor evoked potential (MEP) measurement device that measures induced neurological voltage and correlates the measured neurological change to the TMS stimulus. Other signals indicative of motor threshold may be detected and correlated to the TMS stimulus pulses. For example, left / right asymmetry changes in a narrow subset of EEG leads placed on the forehead of the patient or fast autonomic responses, such as skin conductivity, modulation of respiration, reflex responses, and the like, may be detected. The appropriate stimulation level for TMS studies are also determined using techniques other than motor cortex motor threshold methods. For example, a localized ultrasound probe may be used to determine the depth of cortical tissue at the treatment site. When considered along with neuronal excitability, the stimulation level for treatment may be determined. Alternatively, a localized impedance probe or coil and detection circuit whose Q factor changes with tissue loading may be used to detect cortical depth.

Effective systems and methods for improving neural communication impairment of a vertebrate being and affecting motor activity of a peripheral body part including a first signal-providing component configured to provide pulsed peripheral stimulation signals at the peripheral body part, a second signal-providing component configured to provide a pulsed motor cortex stimulation signal to a motor cortex area, a substantially DC signal-providing component configured to provide direct current spinal stimulation signal at a neural spinal junction and a controller component configured to control timing of the pulsed peripheral stimulation signals and the pulsed motor cortex stimulation signal.

Effective systems and methods for improving neural communication impairment of a vertebrate being and affecting motor activity of a peripheral body part including a first signal providing component configured to provide pulsed peripheral stimulation signals at the peripheral body part, a second signal providing component configured to provide a pulsed motor cortex stimulation signal to a motor cortex area, a substantially DC signal providing component configured to provide direct current spinal stimulation signal at a neural spinal junction and a controller component configured to control timing of the pulsed peripheral stimulation signals and the pulsed motor cortex stimulation signal.

Brain impairment, for example due to stroke, is corrected in order to improve body movement. An fNIRS device is positioned over the motor cortex of non-impaired individuals, and blood oxygen in locations of the brain is analyzed to determine brain activity corresponding to a particular body movement. The movements are statistically analyzed, and are compared with fNIRS data gathered from a movement impaired individual attempting the same movement. A weighted value corresponding to the desired brain activity is generated using the statistical analysis, and is graphically displayed to the movement impaired individual during the attempts. This produces a feedback loop relating to the movement which can be repeated to produce brain plasticity in the impaired individual to facilitate the movement. Additionally, correct brain activity can be used to cause the application of an electrical signal to muscles of the body to produce the desired movement.

A system for controlling a body part includes a number of sensing devices that sense signals from a hemisphere of a brain. A signal translating unit translates the signals into a command signal for controlling the body part, which is on a same side of the body as the hemisphere of the brain. A prosthetic device receives the command signal from the signal translating unit and manipulates the body part in response to the command signal.

The invention discloses a transcranial magnetic stimulation positioning cap, which comprises a shell body adapt to the shape of a human brain, wherein the shell body is correspondingly provided with marking portions used for making two cerebral hemispheres, four brain lobes, EEG electrode parts, a motor cortex functional area, earholes for capping positioning and occipito posterior tuberosity. The transcranial magnetic stimulation positioning cap and the marking method thereof are low in implementation costs, thus medical expenses of patients are reduced; and the operation is convenient, time and effort are saved, and utilization rate of the equipment is increased. Multi-part marking information in the positioning cap makes stimulation parts accurate, the positioning description and repetitive stimulation of the stimulation parts are facilitated in scientific research. The uncertainty of traditional stimulation positioning relying on visual observation and experience is eliminated, and function modulation and therapeutic effect of stimulation nerves can be improved.

Methods and systems for controlling a prosthesis using a brain imager that images a localized portion of the brain are provided according to one embodiment of the invention. The brain imager provides motor cortex activation data by illuminating the motor cortex with near infrared light (NIR) and detecting the spectral changes of the NIR light as passes through the brain. These spectral changes can be correlated with brain activity related to limbic control and may be provided to a neural network, for example, a fuzzy neural network that maps brain activity data to limbic control data. The limbic control data may then be used to control a prosthetic limb. Other embodiments of the invention include fiber optics that provide light to and receive light from the surface of the scalp through hair.

The invention provides a drawing method for an MEP topographic map of a pharyngeal motor cortex area, and further relates to a method for an MEP location map of the pharyngeal motor cortex area. According to the method, an electrode in the pharyngeal cavity is utilized to be inserted into the pharynx of the human body through the nasal cavity and the oral cavity to achieve the effect of accuratelyrecording electromyographic signals of the deep muscle of the pharynx, a positioning cap provided with multiple lattices of smaller sizes is utilized to cover the corresponding brain area to finallyachieve the effect of accurately drawing the MEP topographic map of the pharyngeal motor cortex area, and the drawing method is utilized to measure and draw multiple subjects to finally obtain the MEPlocation map of the pharyngeal motor cortex area of healthy people.

Methods and systems for controlling a prosthesis using a brain imager that images a localized portion of the brain are provided according to one embodiment of the invention. For example, the brain imager can provide motor cortex activation data using near infrared imaging techniques and EEG techniques among others. EEG and near infrared signals can be correlated with brain activity related to limbic control and may be provided to a neural network, for example, a fuzzy neural network that maps brain activity data to limbic control data. The limbic control data may then be used to control a prosthetic limb. Other embodiments of the invention include fiber optics that provide light to and receive light from the surface of the scalp through hair.

A closed-loop brain control functional electrostimulation system in the field of medical devices. The system comprises: a brain motor cortex area signal acquisition module (101), an information control module (102), a stimulator (103), a body movement acquisition module (104) and a brain frontal lobe signal acquisition module (105). The information control module (102) comprises a signal pre-processing sub-module (1021), a mode recognition sub-module (1022) and a command control sub-module (1023). The system has the advantages of ensuring the accuracy of body movement recognition and improving the rehabilitation treatment effect of paralysed patients.

A novel musical instrument was created using electroencephalogram (EEG) motor imagery to control a synthesized piano, and is herein named the Encephalophone. Alpha-frequency (8-12 Hz) signal power, originating from either posterior dominant rhythm (PDR) in the occipital cortex or from mu rhythm in the motor cortex, was used to create a power scale which was then converted into a musical scale which could be manipulated by the individual. Subjects could then generate different notes of the scale by activation (event-related synchronization) or de-activation (event-related desynchronization) of the PDR or mu rhythms in occipital or motor cortex, respectively.

The invention discloses a rat spinal cord nerve signal detection and evaluation system and method, comprising a stimulating electrode, a recording electrode, a pulse stimulator and a nerve signal acquisition system, the stimulating electrode is connected to the pulse stimulator, and the recording electrode is connected to the nerve signal acquisition system. The invention uses electronic detection methods to perform functional electrical stimulation on the primary motor cortex of the rat brain, records the spinal cord nerve signals corresponding to the T9‑T12 segment of the spine and the coordinates of the corresponding sites, and detects the rat brain from the two indicators of correlation coefficient and delay time. The motor cortex controls the conduction pathway of the nerves that control the movement of the lower limbs in the spinal cord. The results show that there is a high correlation coefficient between the signals recorded at the effective sites, and there is a certain delay. The invention can provide practical data for the implantation of detecting electrodes in the microelectronic nerve bridge experiment, detect and evaluate the conduction function of the rat spinal cord from the perspective of electronic information, and prove the feasibility of the microelectronic nerve bridge experiment at the animal experiment level.

Described is a system for automatic adjustment of neurostimulation. The system controls stimulation of specific neural regions through a neural device positioned on a human subject, while simultaneously performing recordings from the neural device using a targeted arrangement of stimulating electrodes and distinct types of recording electrodes of the neural device. Stimulation of the specific neural regions is adjusted in real-time based on the recordings from the neural device.

The invention discloses a communicative dual-arm rehabilitation training robot. The communicative dual-arm rehabilitation training robot comprises the following parts: a supporting mechanism; a cooperative mechanical arm, a first end of which is mounted on the supporting mechanism; a control system, which is used for controlling the action of the cooperative mechanical arm; an end executing mechanism, which includes a connecting portion, a grip portion and a limit switch, wherein the connecting portion is mounted on a second end of the cooperative robot arm, the grip portion and the connectingportion are magnetically connected and can be separated from each other, and the limit switch is electrically connected with the control system. When the grip portion is separated from the connectingportion, the control system can obtain a sensing signal of the limit switch and control the stopping action of the cooperative arm. The communicative dual-arm rehabilitation training robot of the invention can help the patient to perform sports rehabilitation training based on large joints, and can help resolve major clinical problems including the reactivation of the brain motor cortex and the functional reconstruction of the motor sensory network after the clinical nerve transposition recovery.