33 results about "Hand tremors" patented technology

The invention relates to a wearable human arm tremor detection device and a signal processing method thereof. The device comprises a tremor signal detection system and a tremor signal processing system; wherein, the tremor signal detection system comprises an elbow joint tremor detection system, a wrist joint tremor detection system and a hand tremor detection system; the detection systems adopt independent modular structures; DSP processor units in the detection systems are connected with own sensor modules, wireless communication units and power supply units; the tremor signal processing system comprises a DSP central processing unit and a wireless communication unit as well as a display, which are connected with the DSP central processing unit; the DSP processor unit in the detection system is connected with the DSP central processing unit in the tremor signal processing system by the wireless communication unit. The tremor signal processing method adopts the 'two-stage' adaptive filtering algorithm to obtain the normal movement information and the tremor movement information of the arms of the patients. The device adopts the elbow-wrist-hand type wearing structure and detects the arm tremor information of the tremor patients in real time.

A computer receives movement information, wherein the movement information is sent by a computer mouse input device in response to an end-user moving the computer mouse input device. The computer determines a frequency at which an end-user typically tremors based on the movement information received during a specified time interval, by utilizing a fast Fourier transform operation. The computer determines current tremor frequencies of the end-user based on additional movement information, by utilizing the fast Fourier transform operation. The computer modifies a value assigned to a warning counter in response to at least one magnitude of one of the current tremor frequencies exceeding a magnitude of the frequency at which the end-user typically tremors. The computer sends an electronic notification in response to the value assigned to the warning counter exceeding a limit of an acceptable level of hand tremor.

Systems and methods according to the present invention address these needs and others by providing a handheld device, e.g., a free space pointing device, which uses hand tremor as an input. One or more sensors within the handheld device detect a user's hand tremor and identify the user based on the detected tremor.

The invention discloses a wearable device suitable for hand function rehabilitation monitoring and evaluation of a patient with Parkinson's disease, and belongs to the technical field of medical rehabilitation auxiliary equipment aiming at solving the problems of incapability of monitoring the patient with Parkinson's disease, inaccurate measurement result in the rehabilitation process and the like in the prior art. The wearable device comprises a glove body, a signal acquisition unit arranged on the glove body, a signal processing unit arranged on the glove body and an upper computer, and thesignal acquisition unit comprises a tremor signal acquisition unit used for acquiring hand tremor signals, a bending signal acquisition unit used for acquiring the hand bending degree and a pressuresignal acquisition unit used for acquiring the hand pressure.; the signal processing unit processes the signals acquired by the signal acquisition unit and transmitting the signals to the upper computer; and the upper computer judges the tremor degree of the patient through the tremor signals, grades the hand bending degree through a bending degree digital signal, and grades the hand muscle forcedamage degree through a pressure digital signal.

The application belongs to the field of medical and healthcare product package, and particularly relates to a quantitative sampling structure and a container. The invention provides the quantitative sampling structure, which is simple in structure and ingenious in design, can quantitatively take a healthcare medicine accurately and solves the problems of waste and insanitation caused by pouring excessively easily by taking the medicine by using a conventional medicine bottle because of senile dementia, hand tremor, strength lack and the like. A product which is obtained by the technical scheme provided by the invention realizes quantitative medicine outlet, and meanwhile, is suitable for quantitatively taking the healthcare medicines with different shapes and sizes; the quantitative sampling structure can be used as a medicine bottle independently and is convenient to carry out, and can also be used as a novel bottle cap and is matched with bottle bodies of healthcare product bottles with different calibres in the market; the practicability is very high; the commercial value is great.

Disclosed herein is an image magnifying apparatus which automatically brings a target into focus using a diopter lens depending on whether the target is at a short distance or at a long distance. The orientation of a camera and short- or long-distance focusing of a camera lens can be automatically controlled to provide a clear image to a user, whereby even a user with low vision, a blind user, an aged user, a hand tremor user, etc. can easily use the apparatus. Furthermore, the present invention provides lighting suitable for user environment, thus providing a clear image to the user.

The invention provides a Parkinson's disease prediction method and device. A sample set is obtained, keyboard tapping data serving as samples comprise user information and time characteristics at themoment of tapping keyboard keys by a user, then a prediction model is established; the sample set is used for training the prediction model; finally, the keyboard tapping data of a tested object are input into a prediction model, and a Parkinson's disease prediction result is obtained. The degree of hand tremor can be reflected by considering the time characteristic when the user clicks the keys of the keyboard. The invention provides a scheme for predicting the Parkinson's disease by using keyboard tapping data. An effective auxiliary decision is provided for the medical personnel to furtherdiagnose the Parkinson's disease patient. According to the invention, only a computer needs to be used according to daily life habits, no professional equipment or accessories need to be purchased, the method is not affected by the environment, non-inductive data collection of the testee can be achieved, the method is a simple and effective prediction scheme, and early Parkinson's disease can be rapidly and accurately predicted and evaluated in an assisted mode.

The invention provides a tremor detection system based on a bidirectional long-short-term memory neural network, relates to the field of artificial intelligence, and aims to solve the problem of low accuracy of tremor detection in the prior art. The tremor detection system comprises a hand detection module and a model prediction module, wherein the hand detection module comprises a tremor data acquisition unit and a tremor data processing unit; the tremor data acquisition unit is used for acquiring a hand three-axis acceleration signal; the tremor data processing unit is used for converting the hand three-axis acceleration signal into hand three-axis acceleration data; the model prediction module comprises a hand tremor data processing unit and a model training unit; the hand tremor data processing unit is used for processing the received three-axis acceleration data to obtain a training set and a test set; and the model training unit is used for training a model by utilizing the training set and the test set to obtain a trained model. The tremor detection system is used for tremor detection and is high in detection efficiency.

The invention discloses a waist belt type anti-shaking insulin injector, which comprises a waist belt. A box sleeves the waist belt, waist belt holes are positioned on two sides of the box, the box isfixedly connected with the waist belt through the waist belt holes, and the waist belt is fixedly connected with a buckle. The waist belt type anti-shaking insulin injector has advantages that 1, bymeans of a dial and a handle, selection and injection actions are amplified, influences of hand tremor are reduced to the greatest extent, accurate and slow subcutaneous insulin injection is realized,and an injection method is easier in injection speed control than push type injection; 2, by separation design of a liquid storage bag and a syringe, the size of the syringe is sharply reduced, the height of the whole injector is reduced, volume reduction is realized, and the injector can be stably fixed to skin; 3, a gap of a cavity is filled with a loose sterilizing material to make it convenient to sterilize autonomously after needle withdrawal; 4, a spring needle feeding disc realizes a needle concealing function, so that psychological fear of patients with enetophobia can be relieved.

The invention discloses a modeling method for tremor detection and a hand tremor detection device and method.The hand tremor detection device comprises an accelerometer used for collecting three-dimensional acceleration data, a myoelectric signal differential sensor used for collecting myoelectric data, a filtering assembly used for filtering hand tremor signals, a feature parameter extraction component used for carrying out feature extraction on the basis of the filtered hand tremor signal, and a tremor detection modeling component used for carrying out classification by utilizing a trained model and input feature parameters to obtain a detection result of the hand tremor signal. The hand tremor is detected by comprehensively and flexibly utilizing the combination of various characteristic parameters of the acceleration and the myoelectricity data, so that the detection accuracy is improved.

The invention discloses instant-dissolving sea buckthorn fruit tea with efficacy of dispelling effect of alcohol and protecting eyes, and discloses a preparation method thereof. The preparation methodcomprises the following steps: firstly performing scientific and rational proportion matching on multiple ingredient part groups, such as a lipid solubility extract and a water solubility extract, insea buckthorn fruits, and preparing the sea buckthorn fruit all-ingredient instant-dissolving tea through a traditional instant-dissolving product technology. The instant-dissolving sea buckthorn fruit tea has the effect of antagonizing the inhibiting effect caused by alcohol intoxication, and accelerating ethanolysis, is capable of relieving many symptoms of fatigue, headache, thirst, hand tremor and unstable blood pressure caused by hangover, and has the efficacy of protecting eyes. In addition, because the instant-dissolving sea buckthorn fruit tea is an instant-dissolving product, carrying is convenient, and eating is convenient.

The invention discloses an input error correction method executed by a computer. The input error correction method comprises the following steps: receiving a coded character string input by a user and input coordinates and time of each character by utilizing touch information on a touch screen; according to the received character string information, analyzing coordinates and frequency of adjacent touch interaction, and analyzing the possibility that a certain touch interaction is mistakenly touched due to hand tremor; obtaining corresponding candidate items through conversion of the mistaken touch possibility of adjacent touch interaction coordinate frequency analysis and the received coded character string. Compared with a common input method character string correction method, the invention has the advantages that the influence of mistaken touch caused by tremor on the input character string can be effectively reduced, and the problems of large touch deviation and excessive touch caused by tremor can be effectively solved; the processed candidate items can effectively filter invalid input of the user and correct inaccurate input, and a character string more conforming to expectation is provided for the user, so that the user is helped to improve the error-tolerant rate in the using process, the number of times of deleting input characters is reduced, and the input speed is increased.

A device for treating hand tremors and methods of using the device. In at least some embodiments, the device includes a glove covering and at least one Coulomb damping suspension assembly. In some embodiments, the Coulomb damping suspension assembly includes a flexible tube and a wire-tube assembly. In some embodiments, the wire-tube assembly includes a first length of a wire and a first tube.

The invention belongs to the technical field of pharmaceutical preparations, and particularly relates to a pramipexole dihydrochloride oral film-dissolving agent pharmaceutical composition and a preparation method thereof. The composition provided by the invention comprises a polymer film-forming material, a plasticizer and the like. The film agent does not need to be taken with water, is convenient to take, good in taste and rapid to dissolve out, is very suitable for Parkinson's disease patients, especially patients suffering from chewing, dysphagia and hand tremor, greatly improves the compliance of the patients, and has good economic benefits and social benefits.

Therefore, aspects of some embodiments of the present invention, relates to a device for suppressing essential tremors comprising a glove and wires integrated thereon. The glove is configured to fit on a user's hand. The wires may be attached to the posterior or anterior surface of the glove and configured to supply resistance to movements of the fingers.

The invention discloses a device and a method for monitoring frequency and intensity of hand tremor. The device comprises an accelerometer, a gyroscope, a Fourier transform component, a frequency judgment component, a power spectral density analysis component and an intensity calculation component; wherein the accelerometer and the gyroscope are used for collecting acceleration information and angular velocity information as hand tremor signals, and inputting the hand tremor signals into the Fourier transform component and the power spectral density analysis component; the Fourier component performs Fourier transform on the hand tremor signal and inputs the transformed signal into the frequency judgment component, and the frequency judgment component judges and outputs the frequency of the hand tremor signal; the power spectral density analysis assembly carries out power spectral density estimation on the hand tremor signal and inputs an estimated result to the intensity calculation assembly, and the intensity calculation assembly judges and outputs the intensity of the hand tremor signal. The acceleration and the angular velocity are comprehensively utilized to evaluate and judge the hand tremor signal, and the accuracy of monitoring the hand tremor signal is improved.

The invention discloses a six-degree-of-freedom puncture surgical robot, which includes a base plate, an XYZ three-axis mobile platform, an extension rod unit, an αβ angle joint module, a six-dimensional force sensor module, a puncture needle module, and an XYZ three-axis mobile platform. Fixed on the bottom plate, one end of the extension rod unit is connected to the XYZ three-axis moving table, and the other end is connected to the αβ angle joint module, the six-dimensional force sensor module and the puncture needle module in sequence. The six-degree-of-freedom puncture surgical robot of the present invention can replace the doctor to perform puncture in the radiation environment under the guidance of the X-ray real-time image, and the doctor can track the deviation of the target point in real time, and adopt remote operation control to adjust the needle insertion angle in time , to achieve precise puncture of the lungs, and eliminate the adverse effects caused by the doctor's hand tremors, eliminating the need for step-by-step needle insertion and repeated verification processes in traditional surgery, and achieving one-time needle insertion, which improves surgical efficiency and accuracy, and reduces The probability of complications such as pneumothorax and bleeding is reduced.

The invention belongs to the field of health care products, and particularly relates to a fatty acid composition for adjuvant therapy of idiopathic tremor and a preparation method thereof. The fatty acid composition consists of the following components: edible oil containing nervonic acid, linseed oil and other edible oil. Pharmacodynamic and clinical tests prove that the fatty acid composition for adjuvant therapy of idiopathic tremor can effectively improve hereditary hand tremor, hand tremor, limb numbness, insomnia and dreaminess and cognitive impairment, is safe and free of side effects, and clinical cases prove that the fatty acid composition has an improvement effect on idiopathic tremor and has a good application prospect. The fatty acid composition is suitable for being developed into an auxiliary product for treating idiopathic tremor and has market value.

A portable hand tremor detection device has been reported. This device is composed of a detection unit, a flexible pressure sensor, a signal processing unit, and a power supply. The detection unit is composed of the sensor and press-knob. The flexible pressure sensor is a combination of usually spaced apart flexible polymer preferably polydimethylsiloxane, flexible substrate preferably paper, and a conductive coating preferably reduced graphene oxide (RGO). When the users put pressure on the press-knob through the fingers, the flexible pressure sensor actuates and bends so that conductive RGO layers on the flexible substrates come in contact with each other to generate an output current. The electrical circuits in the signal processing unit are laid down in such a manner that the magnitude of this output current varies with the tremor between the fingers, which eventually converted into an electrical signal showing the variation in the hand tremor with time.

The invention provides a hand tremor signal and audio signal classification method based on evolutionary fuzzy rules, which can improve the interpretability of the evolutionary fuzzy classifier. The method includes: obtaining characteristic sample points representing Parkinson's disease and normal people according to the collected physiological data, the physiological data being expressed as time series information; constructing an evolutionary fuzzy classifier based on the mined evolutionary fuzzy rules, and Train the evolutionary fuzzy classifier according to the obtained characteristic sample points representing Parkinson's disease and normal people, and determine the classification threshold of the evolutionary fuzzy classifier; obtain new testers according to the constructed evolutionary fuzzy classifier The number of sample points belonging to Parkinson's disease characteristics in the physiological data. The invention is applicable to the technical field of biomedicine.

The invention discloses a gamified Parkinson's symptom grade evaluation method and device; the method comprises the steps: collecting the motion sign data of hands and legs in a game process, and carrying out the feature extraction of the collected data through combining with game logic; and obtaining six characteristic values including a hand flexibility index, a hand tremor index, a hand associated cognitive competence score, a leg flexibility index, a leg tremor index and a leg associated cognitive competence score; inputting the six characteristic values into a Parkinson's symptom grade evaluation logistic regression model, and outputting a Parkinson's symptom evaluation grade. By means of the mode, the Parkinson's disease symptom grade is evaluated from the two aspects of the exercise symptom and the non-exercise symptom, and the result is more reliable.

The invention discloses a hand tremor identification method in a non-static state of a body. The method is specifically implemented according to the following steps: 1, establishing a hand tremor mathematical model; 2, carrying out data calibration and noise elimination; 3, eliminating a time-varying direct current component and calculating a time-varying tremor frequency; and 4, carrying out a hand tremor identification method based on CNN-LSTM. The problem that in the prior art, the hand tremor action in the non-static state of the body cannot be accurately recognized is solved.

A method for eliminating chromatic aberration caused by an imaging environment and for testing stability of the imaging environment, and; a chromatic aberration calibration device are disclosed. The method serves to detect errors resulting from environmental factors and human factors and, by using a specific measurement distance and angle, eliminate chromatic aberration caused by such factors. Environmental factors include variations of the image capture device itself; the hue, lightness, and chroma of external light; and the distance and angle between the chromatic aberration calibration device and the image capture device. Human factors include operator-related variations, focusing variations, and hand tremor during measurement. When the same chromatic aberration calibration device and imaging environment are used, the method can show color variations caused by the environmental and human factors in the image capture process and thereby determine whether the imaging environment has the expected stability.

The present disclosure generally relates to devices and methods for intraocular fluid delivery. Embodiments described herein provide improved mechanisms for precise delivery of therapeutic agents to intraocular tissues by utilizing a foot controller to wirelessly control a handheld injection device. The utilization of a remote foot controller to control the injection reduces or eliminates uneven application of injection force and hand tremor caused by hand-triggered devices, thus enabling precise position and flow rate control and reducing the risk of tissue damage.

The invention relates to a set of anti-shake spoon and dinner plate for assisting feeding of a hand tremor patient, and belongs to the technical field of kitchenware, a spoon part comprises a replaceable spoon head and a handheld part, a core component of the handheld part is a spherical hinge part, and the anti-shake function of the spoon is achieved through mutual cooperation and installation of a support, a half-wrapped ball and a hollow ball. And relative levelness of the spoon head is realized within a certain range. A hollow hole of the hollow ball body is matched with a shaft, and the hollow ball body and the shaft matched with the hollow ball body can move within a certain range in the semi-enclosed ball body. The outer flexible material extends from the upper end of the support to the bottom end of the spoon handle, and movement of the spherical hinge part is limited to a certain degree. The spoon is provided with a rubber belt surrounding the palm, so that the spoon is prevented from falling off in the feeding process. A track matched with the spoon in size is additionally arranged in the dinner plate, so that the feeding efficiency is improved when a patient takes food. The device is a pure mechanical product, and is simple in structure and low in cost.

Design and development of an affordable, user-friendly, and portable POCT hand tremor detection device has been reported. This device is composed of a detection unit, a flexible pressure sensor, a signal processing unit, and a power supply. The detection unit is composed of the sensor and press-knob. The flexible pressure sensor is a combination of usually spaced apart flexible polymer preferably polydimethylsiloxane, flexible substrate preferably paper, and a conductive coating preferably reduced graphene oxide (RGO). When the users put pressure on the press-knob through the fingers, the flexible pressure sensor actuates and bends so that conductive RGO layers on the flexible substrates come in contact with each other to generate an output current. The electrical circuits in the signal processing unit are laid down in such a manner that the magnitude of this output current varies with the tremor between the fingers, which eventually converted into an electrical signal showing the variation in the hand tremor with time. The proposed POCT device is wirelessly connected to an android mobile application to measure the hand tremors for a longer period of time, display on the mobile interface, and store the data for future analysis of the neurological disorders. The proposed POCT device has the capability to detect the neurological disorders at the mature as well as at the early stages with the vision of control and prevention of these diseases.

An apparatus for simulating hand tremors caused by Essential Tremor and Parkinson's disease which may also be used as part of a therapeutic program in association with surgically implanted stem cells introduced into a patient's substantia nigra.