摘要:
A method and system for the quantitative description of human abnormal brain states, for example, to distinguish cerebral death from a barbiturate induced deep coma, includes an electroencephalograph (EEG) system utilizing scalp electrodes 10 and amplifiers 11, 12. A computer based system controls a multimodal stimulator 17 (clicks, flashes, etc) to provide evoked response data for different sensory systems. The ongoing EEG and averaged response data are processed quantitatively and compared with previously stored normative data, describing brain states in patients free of head trauma, to calculate a set of Z-transformations. The Z-transormations define Z, the brain state vector (BSV), which may be visually displayed, for example, on a cathode ray tube 48. The length, direction and change of BSV overtime provide an evaluation of the anatomical location of any damage, the severity of functional impairment and the rate of improvement or deterioration of the patients's state in order to aid in selection and guidance of treatment.
摘要:
The present invention relates to a method for re-synchronizing a breathing pattern of a patient (16) suffering from ataxic breathing, the method including the steps of monitoring the breathing pattern of the patient (16) during sleep; detecting whether the monitored breathing pattern includes an ataxic breathing episode; and if an ataxic breathing episode is detected, ventilating the patient (16) and eliminating a spontaneous breathing of the patient (16) for a predetermined first period of time (Δt1) by providing a flow of breathing gas (14) to an airway of the patient (16) with a volume of the breathing gas (14) provided per minute being above an individual-related threshold value of the patient (16).
摘要:
A method for assessing the neurological phenomena of hemispheric lateralization is described, wherein a programmed test apparatus is provided for submitting a test series to a subject and acquiring the related responses from the subject. Visual and/or auditory, stimuli randomly selected from a set of previously prearranged stimuli, are submitted to the subject. Upon completion of the test, wherein the visual and/or auditory stimuli are submitted to the subject for a fixed number of times, the test apparatus calculates a numerical value representative of the neurological phenomenon of visuo-spatial and audio-spatial attention lateralization on the basis of the responses given by the subject to different visual and auditory stimuli.
摘要:
The invention relates to a system (1) for evaluating an efficacy of vagus nerve stimulation, wherein the system (1) comprises a neurostimulator (2) that is configured to perform vagus nerve stimulation, and a measuring means (3) for evaluating said efficacy based on at least one parameter (Z) that is indicative of a myocardial contractile state of the heart (H). Furthermore, the invention relates to a corresponding method.
摘要:
A binaural hearing system comprises a) left and right hearing devices, e.g. hearing aids, adapted for being worn at or in left and right ears, respectively, of a user, or for being fully or partially implanted in the head at the left and right ears, respectively, of the user, each of the left and right hearing devices comprising a1) a number Ns of different sensors Si (i=1, ..., Ns), each sensor being configured to monitor a physiological function of the user and providing respective left and right sensor signals ST i,left , ST i,right (i=1, ..., Ns), indicative of the state of the physiological function in question; a2) antenna and transceiver circuitry to provide that information signals, including said sensor signals can be exchanged between the left and right hearing devices and/or forwarded to an auxiliary device, b) a comparison unit for comparing said left and right sensor signals, and providing respective comparison signals CSI i (i=1, ..., Ns) for each of said physiological functions; and c) an analysis unit for analyzing said comparison signals and providing a concluding stroke indicator CSI regarding a risk of stroke of the user depending on said comparison signal(s). Thereby an improved functionality of a hearing system may be provided allowing an early warning of a stroke of a wearer of the hearing system.
摘要:
A system for treating a patient comprises a stimulator for stimulating brain tissue, a controller for setting stimulation parameters and a diagnostic tool for measuring patient parameters and producing diagnostic data. The stimulation parameters comprise test stimulation parameters and treatment stimulation parameters. The stimulator delivers test stimulation energy to the brain tissue based on at least one test stimulation parameter and delivers treatment stimulation energy to the brain tissue based on at least one treatment stimulation parameter. One or more treatment stimulator parameters are determined based on the diagnostic data produced by the diagnostic tool The system is constructed and arranged to treat a neurological disease or a neurological disorder. Methods of treating a neurological disease or neurological disorder are also provided.
摘要:
The present invention relates to the field of detecting/preventing migraine attacks. In particular, a system and method for detecting and preventing a migraine episode in a user are provided. The system comprises a brain activity sensor for detecting a brain activity signal; a migraine trigger detection unit for detecting potential migraine triggers, said potential migraine triggers being circumstances that may potentially cause a migraine attack in the user. A processing unit is configured to: process the brain activity signal to identify one or more signal characteristics in the brain activity signal that are indicative of an upcoming migraine attack in the user; identify one or more correlations between the one or more identified signal characteristics in the brain activity signal and the detected potential migraine triggers; determine, based on the identified one or more correlations, one or more personal migraine triggers that are likely to cause a migraine attack in the user; an output unit for providing the user with a personalized feedback which informs the user about the determined one or more personal migraine triggers and/or how the user may prevent the determined one or more personal migraine triggers.
摘要:
The present invention provides a computer-implemented method, including: a. obtaining, in real-time, by a specifically programmed processor, electrical signal data representative of brain activity of a particular individual; b. processing, in real-time the electrical signal data representative of brain activity of a particular individual based upon a pre-determined predictor associated with a particular brain state, selected from a library of predictors containing a plurality of pre-determined predictors, wherein each individual pre-determined predictor is associated with a unique brain state, wherein the pre-determined predictor associated with a particular brain state includes: i. a pre-determined mother wavelet, ii. a pre-determined representative set of wavelet packet atoms, created from the pre-determined mother wavelet, iii. a pre-determined ordering of wavelet packet atoms, and iv. a pre-determined set of normalization factors, wherein the processing includes: i. causing, by the specifically programmed processor, the electrical signal data to be deconstructed into a plurality of pre-determined deconstructed wavelet packet atoms, utilizing the pre-determined representative set of wavelet packet atoms, wherein time windows of the electrical signal data are projected onto the pre-determined representative set of wavelet packet atoms wherein the projection is via convolution or inner product, and wherein each pre-determined representative wavelet packet atom corresponds to a particular pre-determined brain activity feature from a library of a plurality of pre-determined brain activity features; ii. storing the plurality of pre-determined deconstructed wavelet packet atoms in at least one computer data object; iii. causing, by the specifically programmed processor, the stored plurality of pre-determined deconstructed wavelet packet atoms to be re-ordered within the computer data object, based on utilizing a pre-determined order; iv. obtaining a statistical measure of the activity of each of the re-ordered plurality of pre-determined deconstructed wavelet packet atoms; and v. normalizing the re-ordered plurality of pre-determined wavelet packet atoms, based on utilizing a pre-determined normalization factor; and c. outputting, a visual indication of at least one personalized mental state of the particular individual, at least one personalized neurological condition of the particular individual, or both, based on the processing, wherein the individual pre-determined predictor associated with a particular brain state from within the plurality of pre-determined predictors is generated by the steps including: i. obtaining the pre-determined representative set of wavelet packet atoms by: a. obtaining from a plurality of individuals, by the specifically programmed processor, at least one plurality of electrical signal data representative of a brain activity of a particular brain state; b. selecting a mother wavelet from a plurality of mother wavelets, wherein mother wavelet is selected from an wavelet family selected from the group consisting of: Haar, Coiflet Daubehies, and Mayer wavelet families; c. causing, by the specifically programmed processor, the at least one plurality electrical signal data to be deconstructed into a plurality of wavelet packet atoms, using the selected mother wavelet; d. storing the plurality of wavelet packet atoms in at least one computer data object; e. determining, an optimal set of wavelet packet atoms using the pre-determined mother wavelet, and storing the optimal set of wavelet packet atoms in at least one computer data object, wherein the determining is via utilizing analysis Best Basis algorithm; and f. applying, by the specifically programmed processor, wavelet denoising to the number of wavelet packet atoms in the optimal set; ii. obtaining the pre-determined ordering of wavelet packet atoms by: a. projecting, by the specifically programmed processor, the at least one plurality of electrical signal data representative of a brain activity for each 4 second window of the data onto the pre-determined representative set of wavelet packet atoms; b. storing the projections in at least one computer data object; c. determining, by the specifically programmed processor, the wire length for every data point in the projection by determining the mean absolute distance of the statistical measure of the projections of different channels from their adjacent channels; d. storing the wire length data in at least one computer data object; and e. re-ordering the stored projections, by the specifically programmed computer to minimize a statistical value of the wire length value across each time window, and across all individuals within the plurality of individuals, and across the projections; and iii. obtaining the pre-determined set of normalization factors by: a. determining, by the specifically programmed computer, the mean and standard deviation of the values of the stored projections.
摘要:
It is disclosed an apparatus for restoring voluntary control of locomotion in a subject suffering from a neuromotor impairment comprising a multidirectional trunk support system and a device for epidural electrical stimulation. The robotic interface is capable of evaluating, enabling and training motor pattern generation and balance across a variety of natural walking behaviors in subjects with neuromotor impairments. Optionally, pharmacological cocktails can be administered to enhance rehabilitation results. It is also disclosed a method for the evaluation, enablement and training of a subject suffering from neuromotor impairments by combining robotically assisted evaluation tools with sophisticated neurobiomechanical and statistical analyses. A method for the rehabilitation (by this term also comprising restoring voluntary control of locomotion) of a subject suffering from a neuromotor impairment in particular partial or total paralysis of limbs, is also disclosed.