29 results about "Facial nerve" patented technology

The invention relates to the technical field of computer vision, in particular to a facial nerve paralysis detection method and device based on a dynamic structured light technology, and the method comprises the following steps: carrying out the real-time data collection of the face of a patient, and obtaining a high-precision and complete face point cloud; obtaining a grid model based on the face point cloud; non-rigid registration is conducted on the grid model, a patient face 3D model with the same topological structure as the standard face is generated, and the patient face 3D model is a topological symmetry model; a motion vector for each point in the 3D model of the patient's face is calculated and face symmetry is quantified based on a symmetry operator. According to the method, a non-rigid registration method is used for completing transformation from a standard face model to an actual face model; and carrying out statistics on the motion vector of each point in the transformed topological symmetry model, and quantifying the facial symmetry through the information. According to the method, an objective visual tool is provided for a doctor to diagnose facial paralysis, and the doctor seeing and revising efficiency and accuracy of a patient are improved.

A system, device, and method for transcutaneous nerve stimulation such as facial nerve stimulation, and in particular, to using transcutaneous nerve stimulation for artificially eliciting eye blink, such as with humans with acute facial paralysis (Bell's palsy or Dry Eye syndrome), is disclosed. A battery-operated wearable device may employ a pulse generator for periodically and automatically generating bursts train of asymmetrical Bi-Phasic square pulses. The output pulses are fed to two electrodes that are attached to the skin of the treated person to stimulate the facial nerve for eliciting blinking at a rate that mimics normal blinking operation. The device may include a sensor and a wireless connection, and the parameters of, or the activation of, the generated bursts may be controlled by the sensor output, by human user control, or by data received from the wireless network. Further, the device may transmit status to the wireless network.

This invention discloses a drilling path planning method, storage medium, and device for cochlear implantation, belonging to the field of path planning technology in cochlear implantation. This invention solves the problems of low efficiency and easy introduction of path deviation in existing path planning methods. The invention preprocesses preoperative three-dimensional CT images and integrates anatomical structural models to extract three-dimensional spatial geometric information of key tissues within the temporal bone, including the facial nerve and cochlea. Subsequently, combined with prior medical knowledge, the drilling path for the cochlear implant electrode is automatically planned in three-dimensional space to minimize damage to key nerves and ensure surgical safety. The path planning method of this invention is applicable to cochlear implantation surgery assisted by medical robots, significantly reducing reliance on the doctor's subjective judgment, improving the individualized adaptability and efficiency of path design, and effectively avoiding path deviation caused by human subjective judgment. This invention can be applied to path planning in cochlear implantation surgery.

The invention discloses a preparation for treating facial paralysis and a preparation and use method thereof, and belongs to the technical field of traditional Chinese medicines. The preparation is prepared from radix angelicae, rhizoma typhonii, mint and fructus gleditsiae. The prescription has the treatment rules of expelling wind and removing cold, clearing and activating the channels and collaterals, and restoring consciousness and opening orifices. The traditional Chinese medicine essence is adopted for expelling wind and removing cold, clearing and activating the channels and collaterals and relieving oppressed facial nerves, so that the curing purpose is achieved. Through clinical experience for many years, the product has a unique treatment effect on the facial paralysis field, a just obtained patient can be cured in one treatment course, the cure rate is 99% or above, a sequelae patient can be cured to 90% or above in three treatment courses, and the effects of expelling wind, removing cold, clearing and activating the channels and collaterals are achieved.

This disclosure relates to a method, device, and system used for identifying and treating responders to external nerve stimulation via a combination of a skin electrode assembly and a functional near-infrared spectroscopy (fNIRS) device. More specifically, this specification discloses a method for cutaneous stimulation of the trigeminal nerve, occipital nerve, vagus nerve, facial nerve and / or any of their branches, and a method for measuring cerebral blood flow in a target brain region.

The invention discloses an artificial cochlea implantation grinding path planning method, a storage medium and equipment, and belongs to the technical field of path planning in artificial cochlea implantation. The problems that an existing grinding path planning method is low in efficiency, path deviation is likely to be introduced, and the individualized adaptive capacity of a planned path is poor are solved. According to the method, the preoperative CT image is preprocessed by fusing the anatomical structure model, and the key structure in the temporal bone can be accurately positioned in the preoperative CT image, so that the three-dimensional space geometric information of the key structures of the cochlea, the vestibule and the facial nerve is extracted. According to the method, the grinding path of the artificial cochlea operation area is automatically planned in the three-dimensional space in combination with prior medical knowledge, introduction of path deviation is avoided, the individualized adaptive capacity of path design is improved, the safety of the operation is ensured, and compared with an existing method, the path planning efficiency is improved. The method can be applied to medical robot assisted artificial cochlea implantation operations.

The invention relates to a temporal bone CT-based facial nerve and drumhead nerve automatic segmentation method, and belongs to the technical field of nerve segmentation, and the method comprises the steps: obtaining a temporal bone CT image, inputting the temporal bone CT image to a layer of encoder, and changing the channel number of the temporal bone CT image into 32; the signals are sequentially input into a second layer encoder, a third layer encoder and a fourth layer encoder for processing; sequentially inputting the output of the fourth-layer encoder into the fifth-layer encoder, the sixth-layer encoder and the last-layer encoder to be processed, wherein the fifth-layer encoder, the sixth-layer encoder and the last-layer encoder are added with fast discrete wavelet transform convolution fusion modules; key features of the temporal bone CT image are extracted; the outputs of the second-layer encoder, the third-layer encoder, the fourth-layer encoder, the fifth-layer encoder and the sixth-layer encoder are respectively subjected to jump connection processing through the high-frequency attention guidance module and then are input into the second-layer decoder, the third-layer decoder, the fourth-layer decoder, the fifth-layer decoder and the sixth-layer decoder, and the key features of the last-layer encoder are input into the last-layer decoder; and the decoders of the last layer, the sixth layer, the fifth layer, the fourth layer, the third layer, the second layer and the first layer sequentially perform up-sampling to realize feature recovery and decoding, and facial nerve and drumhead nerve segmentation prediction results are generated.

The invention relates to techniques for managing unintentional stimulation. The techniques relate to managing non-auditory stimulation (e.g., unintentional facial nerve stimulation), including pre-operative and intra-operative techniques for preventing unintentional non-auditory stimulation, and / or post-operative techniques for diagnosing and treating unintentional non-auditory stimulation.

The utility model relates to the field of medical apparatus and instruments, and provides a wearable mask device for facial neuromuscular stimulation based on 3D printing, which comprises a mask body, the mask body is a half side surface covering any side of the face of a wearer, a plurality of positioning through holes are arranged on the mask body in a whole row, and when the mask body is worn, the positioning through holes are communicated with the positioning through holes. The positioning through hole corresponds to any facial nerve target muscle area; a plurality of groups of electrode plate assemblies are arranged in the half side surfaces, and connecting wires of the electrode plate assemblies penetrate through the positioning through holes to be connected with a power supply unit so as to drive the electrode plates to perform electrical stimulation work. A 3D printing technology is utilized, a personalized mask is manufactured according to facial scanning data of a patient, and a multi-channel electrode plate is integrated to specially perform accurate and efficient electrical stimulation on a facial nerve muscle area. By means of the optimized design of the mask, the wearing comfort is enhanced, the risk of skin injury is reduced by reducing repeated operation, and therefore the treatment efficiency and safety are greatly improved.

The invention provides a multi-modal screening system and method for candidate patients for cochlear implantation of senile deaf patients. The method comprises the steps that the relative telomere length of leukocyte DNA in peripheral blood sample data of the senile deaf patients and a temporal bone three-dimensional image of the senile deaf patients are obtained; analyzing the temporal bone three-dimensional image to obtain an oval window width and an included angle between a facial nerve level segment and a projia; obtaining an electric evoked compound action potential signal of the auditory nerve of the senile deafness patient under the electric stimulation effect of the preset parameters, and obtaining a filtered electric evoked compound action potential signal; based on the telomere relative length, the oval window width, the included angle and the filtered electric evoked composite action potential signal, candidate patients suitable for cochlear implant implantation are judged; according to the technical scheme provided by the invention, the construction of a comprehensive evaluation system is realized, so that the artificial cochlea implantation fitness of the patient is evaluated more accurately, and the scientificity and reliability of candidate patient screening are improved.

The invention relates to the technical field of medical instruments, in particular to a low-pulse ultrasonic physiotherapy device for treating primary sjogren syndrome. The device comprises a multi-modal medical image fusion and gland intelligent segmentation module, a gland specificity three-dimensional scanning path planning module, a tissue acoustic characteristic real-time compensation and dynamic focusing correction module and a non-thermal effect guided pulse parameter intelligent optimization module. According to the invention, through accurate positioning of a gland structure, intelligent planning of a scanning path, real-time compensation of acoustic characteristics of tissues, optimization of non-thermal effect parameters, real-time monitoring of functional response and closed-loop adjustment of treatment parameters, the system can be applied to treatment of the glands. According to the method, accurate, individualized and non-invasive treatment on salivary glands and lacrimal glands is achieved, precise gland targeting with millimeter-level precision is achieved, especially glands with complex branch structures can be comprehensively covered, and meanwhile sensitive structures such as facial nerves can be avoided.

The present disclosure provides a system and method for capturing facial nerve movement data. The system comprises: a head stabilization apparatus, a focusing and lighting apparatus, a specified camera, and a seat. The seat is arranged below the head stabilization apparatus, cooperates with the head stabilization apparatus, and is configured to provide a seat for a patient suffering from facial paralysis. The specified camera is arranged directly in front of the seat and faces the seat. The focusing and lighting apparatus is symmetrically arranged on the left and right sides of the specified camera and faces the seat. The head stabilization apparatus is configured to provide support for a head position of said patient and calibrate the head position of said patient when the patient sits on the seat. The focusing and lighting apparatus is configured to adjust a photographing environment for said patient to a photographing environment that meets a target photographing requirement. The specified camera is cooperates with the focusing and lighting apparatus and is configured to record a facial nerve movement image of said patient when calibration of the head position of the patient and the photographing environment is completed.

The invention discloses a traditional Chinese medicine composition which comprises the following components in parts by weight: 10.2 to 12.2 parts of stiff silkworm, 10.4 to 12.4 parts of scorpion, 10.5 to 12.5 parts of rhizoma arisaematis, 10.4 to 12.4 parts of rhizoma typhonii, 10.3 to 12.3 parts of pinellia ternate, 10.4 to 12.4 parts of cantharides and 10.5 to 12.5 parts of red vitriol. The traditional Chinese medicine composition can effectively inhibit HSV-1 virus replication and treat facial paralysis caused by the HSV-1 virus, and overcomes the symptoms of head post-brain pain, ear post-brain pain, facial pain, neck pain, facial paralysis, eye exposure and lacrimation, eye fission, shallow or disappearing frontal marks, mouth rinsing water leakage, incapability of normally completing eye squeezing, nose rising or mouth pulling actions and the like. Animal experiments prove that the traditional Chinese medicine composition provided by the invention verifies the protection effect on HSV-1 infected facial nervous tissues from the dimensions of nucleic acid load, tissue infection dose and the like. And the safety of the composition is verified according to results of a repeated administration toxicity test, a skin stimulation test and an allergy test. The medicine takes effect quickly, and an obvious curative effect can be achieved within 8 days after the medicine is taken.

The invention discloses a personalized bionic head face temporal bone surgery approach training system which comprises a 3D printing head face bionic model, a 3D printing temporal bone bionic model, a drill bit and a surgery navigation system. Four temporal bone operation approach sites are marked on the outer side face of the embedded 3D printing temporal bone bionic model; the inner side face of the 3D printing temporal bone bionic model is covered with a conductive coating, and the inner side face of the 3D printing temporal bone bionic model is further covered with a conductive copper foil used for simulating a dura mater structure. Facial nerves, facial arteries and facial veins which are made of silica gel materials are further arranged in the 3D printing temporal bone bionic model, and the outer surfaces of the facial nerves, the outer surfaces of the facial arteries and the outer surfaces of the facial veins are all coated with conductive coatings; when a drill bit touches facial nerves, facial arteries, facial veins and the inner side face and dura mater structure of the 3D printing temporal bone bionic model in the drilling and grinding process, the closed loop forms and generates alarm sound to prompt an operator. A temporal bone head and face bionic model suitable for teaching demonstration, head and neck neurosurgery operation training, preoperative planning and the like is constructed by utilizing a 3D printing technology and combining a real temporal bone structure.

The invention relates to the technical field of puncture instruments, in particular to a facial nerve ultrasonic guide puncture positioning support and a positioning method.The facial nerve ultrasonic guide puncture positioning support comprises fixing plates located on the two opposite sides, a sliding frame is horizontally and slidably arranged at the upper ends of the fixing plates, and a sliding plate is slidably arranged at the position, located on one side of the sliding frame, of the upper ends of the fixing plates; and a sliding block is slidably arranged at the bottom end of the sliding plate. According to the facial nerve ultrasonic guided puncture positioning support in parotid gland operation and the positioning method, through the arrangement of the triggering mechanism and the connecting mechanism, after the ultrasonic probe at the bottom end of the connecting plate is tightly attached to the corresponding position of the face of a patient, the transverse position and the longitudinal position can be automatically locked, and during later puncture, the ultrasonic probe can be automatically locked; the probe can be automatically unlocked and synchronously moved, the situation that the fixing position of the probe needs to be changed during puncture is prevented, adjustment and puncture can be achieved by one person, manpower is saved, and the treatment efficiency is improved.

Facial nerve decoding method based on electroencephalogram signal relates to the field of neural decoding and computer vision. It includes the following steps: 1) extracting facial expression information from human brain neural data to establish a realistic face generation model; 2) locking the corresponding brain area and neural band of human brain neural data by using DEAP data set; 3) connecting electroencephalogram and facial data through LSTM model, and quantifying the emotional parameters of subjects as the initialization parameters of LSTM by using CNN model; 4) editing the emotional parameters on the basis of the original face by using StyleGan network to obtain generated pictures very close to the original facial expression. Realistic faces can be generated, which is a step forward in the visualization level. It realizes an innovative step of directly decoding facial features from neural signals. The whole process from preprocessing to application is given, which makes good use of the advantages of the cross between brain science and computer science and optimizes the signal-to-noise ratio of the data end.

This invention relates to the field of medical device technology, and more particularly to a controlled physiotherapy device for use in neurology. This invention provides a controlled physiotherapy device for neurology that applies pressure to acupoints and massages muscle groups on the patient's face, and intermittently applies electrical stimulation to the face to treat facial nerve damage, thereby achieving a better therapeutic effect. The controlled physiotherapy device for neurology includes a headband, a parameter adjuster, and support blocks. The parameter adjuster is fixedly connected to one side of the headband, and two support blocks are fixedly connected to the bottom of the headband, with the two support blocks arranged symmetrically. The pressure contacts massage the patient's face and electrically stimulate different acupoints on the face of patients with facial paralysis, stimulating the facial nerves, repairing damaged facial nerves, and providing targeted and effective treatment.

The invention discloses a drilling path planning method for an artificial cochlea implantation channel, a storage medium and equipment, and belongs to the technical field of path planning in artificial cochlea implantation. The problems that an existing path planning method is low in efficiency and path deviation is likely to be introduced are solved. According to the method, a preoperative three-dimensional CT image is preprocessed, and an anatomical structure model is fused to extract three-dimensional space geometric information of key tissues including facial nerves and cochlea in a temporal bone. And then, by combining prior medical knowledge, a drilling path of an artificial cochlea electrode is automatically planned in a three-dimensional space, so that damage to key nerves is minimized, and the safety of an operation is ensured. The path planning method is suitable for the medical robot assisted artificial cochlea implantation operation, the dependence on subjective judgment of a doctor is remarkably reduced, the individualized adaptive capacity and efficiency of path design are improved, and path deviation caused by subjective judgment is effectively avoided. The method can be applied to path planning in an artificial cochlea implantation operation.

The utility model discloses a head-mounted electrical stimulator for a patient with swallowing dysfunction, which is in the shape of a head-mounted earphone and comprises a head band and two ear rings. The two ear rings are connected to the two ends of the head band respectively and surround the outer ears of a user. And the ear ring is provided with a post-ear mastoid process stimulating electrode. The ear rings and the connecting pieces are used for bearing the stimulating electrodes, so that the stimulating electrodes at the corresponding positions can act on glossopharyngeal nerves, vagus nerves, parallelogram nerves, facial nerves and chin nerves respectively, and compared with the prior art, electrical stimulation on single nerves is more efficient; meanwhile, the device has the advantages of being noninvasive and convenient to use.

The present invention relates to techniques for management of unintentional stimulation. The techniques relate to management of non-auditory stimulation, such as unintentional facial nerve stimulation, including pre-operative and intra-operative techniques for preventing unintentional non-auditory stimulation, and / or post-operative techniques for diagnosing and treating unintentional non-auditory stimulation.

The present application relates to the field of computer vision, and discloses a unilateral facial paralysis multi-branch evaluation method and system based on multi-feature fusion and multi-task learning, medium and equipment, which comprises: after pre-processing the collected front face designated expression action video, retaining the video frame in which the face region can be detected; extracting the local dynamic symmetry feature of the target facial nerve branch region and the global static face feature in the limit action state, and performing feature fusion; the fused features are added and merged with the global static face feature to obtain the merged shared features; the shared features are input into the classification subnetwork and the regression subnetwork at the same time to obtain the classification probability value of whether facial paralysis and the preliminary regression estimation value of the severity of facial paralysis; combining the classification probability value with the learnable parameters, the preliminary regression estimation value is enhanced regression to obtain the final regression estimation value; the regression estimation value is data post-processed to obtain the final evaluation level of the severity of facial paralysis.

The utility model relates to the technical field of medical apparatus and instruments, in particular to a protective fixing device for a facial nerve stimulation needle, which comprises a stimulation needle fixing device comprising a stimulation needle fixing part and puncture auxiliary wings arranged at two ends of the stimulation needle fixing part; the stimulation needle reinforcing assembly comprises a first fixing piece and a second fixing piece which are connected, the first fixing piece is connected with the stimulation needle fixing device, and a first connecting piece is arranged on the second fixing piece; and the skin-friendly piece is arranged at one end, which is not connected with the stimulation needle reinforcing assembly, in the stimulation needle fixing device. According to the protective fixing device of the facial nerve stimulation needle, the puncture auxiliary wings are arranged, so that a stress point is provided for puncture of an operator, and quicker and more accurate puncture is realized. According to the protective fixing device for the facial nerve stimulation needle, the skin-friendly layer is arranged on the side, making contact with the skin, of the stimulation needle fixing device, and the situation that the skin is injured due to compression of a hard needle handle when the stimulation needle fixing device is placed for a long time can be avoided.

The invention discloses a temporal bone model experiment device combined with an alarm system, which comprises a temporal bone main body, the temporal bone main body is provided with an operation area and a function area, and the operation area is provided with a cortical bone layer, a cancellous bone layer, internal jugular veins, internal jugular arteries, facial nerves, semicircular canals and auditory bones. The internal jugular vein, the internal jugular artery, the facial nerve, the semicircular canal and the ossicular are embedded in the cancellous bone layer, and the internal jugular vein, the internal jugular artery and the facial nerve are all soft tubes filled with liquid. According to the invention, the hydraulic sensing principle is utilized to simulate the touch sense of real vascular nerves in an operation, and when the bone grinding device is used for operation, if the bone grinding device touches facial nerves, internal jugular veins or internal jugular arteries, the bone grinding device has an alarm function; if the bone grinder grinds and penetrates the skull or touches the meninx, the alarm function can also be achieved, and corresponding alarm prompting effects are achieved through different alarm mechanisms.

The invention provides a facial paralysis nerve and muscle effect plaster and a preparation method thereof, and belongs to the technical field of plasters. The nerve and muscle effect plaster for facial paralysis comprises a plaster medicament and a medicine carrying layer, wherein the plaster medicament comprises the following raw materials: raw stiff silkworm, centipede, scorpion, arisaema cum bile, divaricate saposhnikovia root, cassia twig, ligusticum wallichii, rhizoma typhonii, safflower, myrrh, asarum, semen strychni, borneol and vaseline; and the medicine carrying layer is a medical pressure-sensitive adhesive. The medicine carrying layer is of a claw-shaped structure and comprises one round bottom and four branches, facial nerves can be accurately covered, the directions of the four branch structures can be adjusted at will, lifting in the opposite direction is conducted according to the muscle sagging direction of facial paralysis, and the effect is improved.

The present disclosure relates to methods, devices, and systems for identifying and treating responders to external nerve stimulation via a combination of a skin electrode assembly and a functional near infrared spectroscopy (fNIRS) device. More specifically, disclosed herein are dermatological methods of stimulating trigeminal, occipital, vagus, facial nerves, and / or any branch thereof and measuring cerebral blood flow at a targeted brain region.

Multi-component systems and methods for determining the proximity of surgical tools to key anatomical features are provided. The inventive systems and methods can be applied in any surgical procedure requiring precision to avoid damage to key anatomical features such as nerves, with a particular example being the robotic cochlear implantation minimally invasive approach to cochlear implantation. Use of purpose built surgical robots, electromyography and tissue impedance, stereotactic tracking and drilling force / bone density measurements are all key components, with inputs from these various modalities being dynamically weighted. In the example of robotic cochlear implantation, the inventive concepts are used to provide key surgical guidance so as to avoid damage to the facial nerve and the chorda tympani, among other anatomical features.

The invention discloses a facial nerve closed-loop regulation and control stimulation method and device based on visual feedback. The method comprises the following steps: acquiring a facial movement mode of a healthy side of a patient; the face movement mode of the unhealthy side of the patient is used as expected movement information, the feedback face movement mode of the affected side is used as actual movement information, the generation process of the stimulation current is iteratively optimized, and the corresponding stimulation current is generated; the stimulation current is input into an implanted stimulation electrode in the body of the patient, and the stimulation current enables muscles on the affected side of the patient to contract and move; the image acquisition device acquires a facial movement image of an affected side of a patient and determines a facial movement mode of the affected side; and repeating the steps until facial stimulation is completed. According to the motion information generated after actual muscle stimulation, the stimulation current which generates the motion and is implanted into the stimulation electrode is fed back, generation of the stimulation current is iteratively optimized, the stimulation current is made to meet the expectation better, and therefore the stimulation effect is improved.

The invention relates to the field of computer vision, and discloses a single-sided paralysis multi-branch evaluation method and system based on multi-feature fusion and multi-task learning, a medium and equipment, and the method comprises the steps: carrying out the preprocessing of a collected front face specified expression action video, and reserving a video frame capable of detecting a face region; extracting a local dynamic symmetric feature of the target facial nerve branch region and a global static face feature in a limit action state, performing feature fusion, and adding and merging the fused feature and the global static face feature to obtain a merged shared feature; inputting the shared features into the classification sub-network and the regression sub-network at the same time to obtain a classification probability value of whether the facial paralysis exists or not and a preliminary regression estimation value of the severity of the facial paralysis, and performing enhanced regression on the preliminary regression estimation value in combination with the classification probability value and learnable parameters to obtain a final regression estimation value; and performing data post-processing on the regression estimation value to obtain a final facial paralysis severity assessment level.

The present invention discloses a decoupling divide-and-conquer facial nerve segmentation method and device. As for the characteristics of a small facial nerve structure and a low contrast, a facial nerve segmentation model including a feature extraction module, a rough segmentation module, and a fine segmentation module is constructed. The feature extraction module is configured to extract a low-level feature and a plurality of different- and high-level features. The rough segmentation module is configured to globally search the different- and high-level features for facial-nerve features and fuse them. The fine segmentation module is configured to decouple a fused feature to obtain a central body feature. After the central body feature is combined with the low-level feature to obtain an edge-detail feature, a space attention mechanism is used to extract attention features from the central body feature and the edge-detail feature, to obtain a facial nerve segmentation image. The method improves the precision and speed of automatic facial nerve segmentation, and meets the needs of preoperative path planning for robotic cochlear implantation.