13 results about "Orbicularis oculi muscle" patented technology

The invention provides a micro-expression recognition method and device based on a multi-scale optical flow guiding attention mechanism, and the method comprises the following steps: constructing a pre-trained micro-expression recognition model which comprises a preprocessing module, a dynamic motion branch and a space-time appearance branch which are arranged in parallel, a cross-modal fusion module, and a classification head; and obtaining a to-be-recognized micro-expression video, and inputting the to-be-recognized micro-expression video into the micro-expression recognition model to obtain an emotion category According to the scheme, the attention sensitivity of the model to micro-motion of key areas such as orbiculus oculi muscle and zygomatic lesser muscle is remarkably improved under the guidance of the optical flow dynamic information, so that the accuracy of emotion category prediction is improved.

This invention provides a modified BoNT / A for treating facial wrinkles, wherein the modified BoNT / A is administered via intramuscular injection at multiple sites on an individual's face, wherein the modified BoNT / A is administered at a unit dose of greater than 1754 pg or greater than 8000 pg per site, wherein the multiple sites are selected from: up to two sites on the corrugator supercilii muscle and one site on the depressor supercilii muscle for treating glabellar lines; up to five sites on the frontalis muscle for treating forehead wrinkles; and up to three sites on the orbicularis oculi muscle for treating lateral canthal wrinkles, wherein the total dose of modified BoNT / A administered during treatment is up to 264,000 pg (and optionally greater than 88,000 pg), and wherein the modified BoNT / A comprises a BoNT / A light chain and a translocation domain (H N The structure domain), and the BoNT / B receptor binding domain (H C (structural domain).

To provide a method for evaluating the degree of an eye aging phenomenon.SOLUTION: An eye evaluation method comprising: evaluating a degree of an aging phenomenon of an eye of a subject on the basis of a value indicating a muscle force of an orbicularis oculi muscle of the subject.SELECTED DRAWING: None

This invention relates to the field of image edge detection technology, specifically to an eyelid detection system for assessing the orbicularis oculi muscle movement function in patients with myasthenia gravis. The system includes a video frame acquisition module, an iris morphology reconstruction module, an interference level acquisition module, a gradient map correction module, and an eyelid edge detection module. By acquiring video frame data of the patient's eyes, the system corrects iris deformation in the iris region of the target image frame corresponding to eye movement. Based on the corrected iris region, the system analyzes the interference of iris morphology on eyelid edge detection, determines the degree of iris deformation interference, and then corrects the gradient values ​​of gradient points in the same area corresponding to the corrected iris region in the gradient map of the target image frame during eye movement, obtaining a corrected gradient map. Based on the corrected gradient map, the system determines the patient's eyelid edge detection result. This invention effectively improves the accuracy of eyelid edge detection for patients.

The application provides a micro-expression recognition method and device based on a multi-scale optical flow attention mechanism, and comprises the following steps: constructing a pre-trained micro-expression recognition model, wherein the micro-expression recognition model comprises a preprocessing module, a dynamically moving branch and a space-time appearance branch arranged in parallel, a cross-modal fusion module and a classification head; and inputting a micro-expression video to be recognized into the micro-expression recognition model to obtain an emotion category recognition result. According to the scheme, the dynamic information of the optical flow is used as a guide to significantly improve the attention sensitivity of the model to the micro-movement of key regions such as the orbicularis oculi muscle and the zygomaticus minor muscle, thereby improving the accuracy of emotion category prediction.

The invention discloses a wearable periocular muscle electrical stimulation system and method for a facial paralysis patient, which are specially designed for eyelid closure dysfunction of the facial paralysis patient, adopt a wearable design, enable the patient to be treated anytime and anywhere, do not need to stay in hospital or frequently go to hospital, and are convenient and easy to use. The real-time eye movement signal provided by the eye movement tracking device is used as a control trigger source, and real-time closed-loop control that the uninjured side eyelid action triggers the affected side synchronous electrical stimulation is achieved. Meanwhile, a double-channel control strategy of high-frequency chopping boosting and low-frequency PWM modulation is introduced, the lepidomelaei muscle or the orbiculus ocularis muscle on the affected side is stimulated through the electrical stimulation technology, and the patient is effectively helped to recover the eyelid closing function. Through the signal cascading mode, the intermediate processing link of image acquisition and recognition is omitted, the control process is more direct, and real-time response and synchronous stimulation of eyelid movement can be achieved conveniently.

This invention discloses an implant for lower eyelid enhancement, adapted for implantation below the orbicularis oculi muscle of the lower eyelid. The implant is elongated with a triangular cross-section, the triangle having three corners. In the implanted state, the implant maintains a triangular shape with one corner pointing upwards, used to support and elevate the lower eyelid; the maximum width of the cross-section does not exceed 3mm. The implant of this invention can restore the mountain-like structure of the lower eyelid when viewed from the side, without widening. Its small volume and upward-pointing shape effectively avoid the risk of the upper edge of the implant pressing upwards and causing induced trichiasis.

This invention discloses an implant for lower eyelid enhancement, adapted for implantation below the orbicularis oculi muscle and above the tarsal plate. The implant is elongated, with a cross-section of a triangular structure with three sides concave inward. The triangular structure has three corners; in the implanted state, one corner faces upward to support and elevate the lower eyelid. The implant of this invention can recreate the mountain-like structure of the lower eyelid when viewed from the side. Its small size and effective corner support effectively avoid the risk of the upper edge of the implant pressing upward and causing ingrown eyelashes.

The present invention provides a modified BoNT / A for use in treating facial lines, wherein the modified BoNT / A is administered by intramuscular injection at a plurality of sites of the face of the subject, wherein the modified BoNT / A is administered by way of a unit dose of greater than 1754 pg or greater than 8000 pg) of modified BoNT / A per site, wherein the plurality of sites are selected from: up to two sites of a corrugator muscle and one site of a procerus muscle for treating glabellar lines, up to five sites of a frontalis muscle for treating forehead lines, and up to three sites of an orbicularis oculi muscle for treating lateral canthal lines, wherein the total dose of modified BoNT / A administered during the treatment is up to 264,000 pg (and optionally greater than 88,000 pg), and wherein the modified BoNT / A comprises a BoNT / A light-chain and translocation domain (HN domain), and a BoNT / B receptor binding domain (HC domain).

A meibomian gland therapeutic instrument comprises upper and lower meibomian gland heating pieces for heating upper and lower eyelids, respectively, and two sets of slide rails are arranged inside a lower shell to enable the assembly ends of the upper and lower meibomian gland heating pieces to be coupled with the slide rails in a slidable manner, achieving limiting and sliding functions, so as to facilitate flexible adjustment of the positions of the heating pieces according to the shapes of the eyelids of patients and treatment requirements, ensure close contact of the heating pieces with the eyelids, and improve treatment effects. The lower meibomian gland heating piece is preferably a lower meibomian gland heating electrode piece with heating and electrical stimulation functions, and an electrical stimulation area thereof is in contact with the eyelid to uniformly conduct electrical stimulation signals to the orbicularis oculi muscle nerves to cause blinking. The meibum is softened by heating, and pressure is generated by the interaction between the eyeball and the eyelid during blinking to promote the discharge of the meibum and dredge the meibomian gland channel. The therapeutic instrument has the advantages of simple and reliable structure, simple operation, no need for anesthetics, self-use of patients at home, high efficiency, safety and convenience.

The utility model provides a kind of meibomian gland therapeutic instrument, two pairs of upper shell and lower shell assembly form the two main body structures of therapeutic instrument, and directly connect by U-shaped connecting piece, so that overall structure is compact, stable and easily assembled and adjusted, suitable for bilateral synchronous treatment. Upper meibomian gland heating piece and lower meibomian gland heating piece are used to heat upper and lower eyelid respectively, soften the meibum in upper and lower meibomian gland, improve treatment effect. Lower meibomian gland heating piece is preferably lower meibomian gland heating electrode piece with heating and electric stimulation function, its electric stimulation area contacts with eyelid, uniformly conduct electric stimulation signal to orbicularis oculi nerve, and induce winking movement. By heating and softening meibum, and using the interaction between eyeball and eyelid during winking to generate pressure, promote meibum to discharge, dredge meibomian gland channel. The therapeutic instrument is simple and reliable in structure, easy to operate, without anesthetic, and patients can use it at home, with the advantages of high efficiency, safety and convenience.

The invention relates to the technical field of image edge detection, in particular to an eyelid detection system for evaluating the orbicular orbicular muscle motion function of a myasthenia patient, which comprises a video frame acquisition module, an iris form reconstruction module, an interference degree acquisition module, a gradient map correction module and an eyelid edge detection module, the method comprises the following steps: acquiring video frame data of eyes of a patient, and performing iris deformation correction on an iris region in a corresponding target image frame during eyeball movement in the video frame data; based on the corrected iris region, analyzing interference of an iris form on eyelid edge detection, determining an iris deformation interference degree, and further correcting gradient values of gradient points in the same position region corresponding to the corrected iris region in a gradient map of the corresponding target image frame during eyeball movement to obtain a corrected gradient map; and determining an eyelid edge detection result of the patient based on the corrected gradient map. The eyelid edge detection accuracy of the patient is effectively improved.

The invention discloses a non-invasive brain network nerve regulation and control system and a control method thereof. Magnetic resonance imaging / diffusion tensor imaging data of a testee are collected and processed, and double-target reliable positioning is carried out; determining an acoustic transducer channel layout and initial acoustic stimulation parameters according to the network model; transmitting a multi-channel multi-mode modulation acoustic stimulation signal, stimulating the cochlea to synchronously generate a multi-mode bioelectric pulse signal, and stimulating the cochlea to generate a multi-mode bioelectric pulse; synchronously or asynchronously acquiring feedback signals of different stages of EEG / EMG and extracting orbicular oculi muscle and cortex response characteristics; acoustic stimulation parameters of all channels are dynamically adjusted and optimized through a feedback algorithm, an acoustic stimulation parameter report is generated, cochlea and deep nuclei thalamus-ganglion-motor cortex loops are accurately excited and regulated to generate electrophysiological response through audible acoustic multi-mode stimulation, and the device has the advantages of being non-invasive, safe, adjustable in height, low in cost and the like.