61 results about "Nystagmus" patented technology

Structure and methodology involving mountable and head-wearable frame structure which is positionally stabilized, during use, relative a human subject's head, and which carries a selection of positionally anchored data sensors, and stimuli deliverers, that are relevant to the diagnosis and treatment of vestibular disorders. Special configurations are provided for two types of stimulators, one for sound application and air-pressure modification, and the other for the introduction of fluids to the ear. Stabilization enables tight and accurate correlation of data which is quickly analyzable by a connected, properly algorithmed computer, which can also be used for feedback control in a designed “expert” system. The invention enables, among other things, practical and significant differentiation between physiological and pathological nystagmus.

A system or method for measuring human ocular performance can be implemented using an eye sensor, a head orientation sensor, and an electronic circuit. The device is configured for measuring vestibulo-ocular reflex, pupillometry, saccades, visual pursuit tracking, vergence, eyelid closure, dynamic visual acuity, retinal image stability, foveal fixation stability, focused position of the eyes or visual fixation of the eyes at any given moment and nystagmus. The eye sensor comprises a video camera that senses vertical movement and horizontal movement of at least one eye. The head orientation sensor senses pitch and yaw in the range of frequencies between 0.01 Hertz and 15 Hertz. The system is implemented as part of an impact reduction helmet that comprises an inner frame having interior pads configured to rest against a person's head and one or more shock absorption elements attached between the inner frame and the spherical shell that couple the spherical shell to the inner frame. The spherical shell has a circular geometry, that when viewed horizontally at its horizontal midplane, includes a center point that is the rotational center of the spherical shell. The one or more shock absorption elements are sized to provide greater spacing between the inner frame and the spherical shell at the sides and rear of the spherical shell than at the front of the spherical shell. The one or more shock absorption elements are sized to configure the alignment of the rotational center of the spherical shell with the proximate rotational center of the wearer's head.

An apparatus for detecting abnormalities in spatial perception that consists of a first transparent screen in a close-vision field and a second screen seen through the first one and located in a far-vision field of a person being tested. The apparatus is provided with devices for forming images selectively on the first or second screen and with a device for tracking trajectories of the eye pupils while following the images. The method is based on detecting specific irregularities in trajectories of the eye pupils, such as nystagmuses, cut-offs, sudden drops of the gaze, etc., when a person follows the smooth trajectory of a moving image on a selected screen, or when the size and position of the eye pupil change with certain irregularity in response to instantaneous switching of images between the screens without changing the position of the person's head.

Structure and methodology involving mountable and head-wearable frame structure which is positionally stabilized, during use, relative a human subject's head, and which carries a selection of positionally anchored data sensors, and stimuli deliverers, that are relevant to the diagnosis and treatment of vestibular disorders. Special configurations are provided for two types of stimulators, one for sound application and air-pressure modification, and the other for the introduction of fluids to the ear. Stabilization enables tight and accurate correlation of data which is quickly analyzable by a connected, properly algorithmed computer, which can also be used for feedback control in a designed “expert” system. The invention enables, among other things, practical and significant differentiation between physiological and pathological nystagmus.

In an apparatus for diagnosing a brain function of a subject 20 by giving a load to a functional site of a living organism of the subject 20, receiving reactions emitted from the living organism of the subject 20 as an electric signal 40, 50, 60 or 70 and analyzing the electric signal 40, 50, 60 or 70, the electric signals 40, 50, 60 and 70 are a voice signal 40, an nystagmus signal 50, a pulse wave signal 60 and a gravity center swinging signal 70. The apparatus selects at least two from among them, calculates chaos theoretical indexes such as Lyapunov exponents according to a chaos theoretical technique, detects changes in the chaos theoretical indexes with passage of time, and collectively evaluates and diagnoses the brain function.

The present invention relates to systems and techniques for stimulating a user. For example, materials and methods for manipulating nystagmus and the related vestibular system with coupling of galvanic vestibular stimulation (GVS) and visual cueing are provided herein. Use of GVS within the present invention may be applied to simulation, alleviating motion sickness, and directional cueing of a user to a precise target location.

Various embodiments of a device for performing a gaze field sobriety test are disclosed. The device includes a housing. A light source is affixed in or on the housing. The light source generates light during at least a portion of the gaze field sobriety test. A speaker positioned in or on the housing generates sounds during at least a portion of the gaze field sobriety test. A power source is coupled to the speaker and the light source. An input is positioned on the housing. The input is selectable by a test administrator to initiate an audible sound through the speaker at a predetermined time interval during at least a portion of the gaze field sobriety test. The audible sound provides an indication to the test administrator during the gaze field sobriety test to assist in proper performance of the gaze field sobriety test.

A device, a system, and / or a method are provided for monitoring the eye behavior of drivers of oncoming cars. A camera mounted to a car mirror may monitor the eyes of oncoming drivers. An eye recognition analyzer may recognize nystagmus symptoms exhibited by the oncoming drivers. A machine may recognize the license plate information of the oncoming cars. The license plate numbers, as well as other identifying features of the oncoming cars, may be displayed on a head-up display of a car. A driver of the car may be otherwise notified by an alarm and / or warning about the possibility of a dangerous, oncoming car. An emitter located on the car may emit signals to other nearby networked cars in order to warn their drivers about the dangerous oncoming car. Information regarding the dangerous oncoming car may be displayed on the head-up displays of the other nearby networked cars.

The invention relates to a DNA library capable of diagnosing nystagmus infective genes through a targeted high-flux sequencing technique and an application of the DNA library. The library comprises 674 nystagmus infective genes. According to the DNA library disclosed by the invention, 674 nystagmus infective genes are preferably selected, a probe pond is designed, a target area library in accordance with 674 nystagmus infective genes is established, a high-flux sequencing technique is used by the library for sequencing, infective mutation is sought, and genetics and molecular biology basises are provided for clinical diagnosis. The DNA library disclosed by the invention has the characteristics of being accurate, quick, flexible and low in cost. The 674 gene related in the DNA library disclosed by the invention comprise infective genes of heredity diseases which nearly use nystagmus as clinical manifestation, including X-linked congenital nystagmus, oculocutaneous albinism, ataxia diseases, congenital amaurosis and cataract, and have important significance and clinical value on diagnosis, identification and diagnosis as well as pinpoint treatment of the nystagmus.

The invention relates to a BPPV nystagmus signal labeling method, and the method comprises the following steps: enabling an expert to label a part of selected high-quality video samples according to clinical diagnosis experience; according to labeled data of an expert, expanding a sample size to obtain a sufficient sample number by adopting data processing schemes such as data enhancement and positive sample expansion, and training a basic deep learning model as a Teacher Model; taking the unlabeled data as a test set, predicting the unlabeled data by using the Teaser Model, and giving a corresponding pseudo-label effect; selecting and abandoning the samples with negative false label display and low-confidence positive samples and independent positive samples; for continuous positive samples, annotating the samples with high confidence as positive samples, wherein the samples are used as new training samples. According to the method, the deep learning model is trained by using the limited annotation data set, and the new patient sample is automatically annotated, so that the annotation cost is reduced.