1767results about "Eye treatment" patented technology

The invention relates to the field of computer vision and the field of image processing, in particular to a blind guiding scene recognition method based on a multi-modal visual large model. Comprising the following steps: data acquisition: acquiring image or video data of a typical blind guiding scene, marking, constructing a data set, introducing an image prompting mechanism, and dividing a training set and a test set; constructing a multi-modal visual large model which comprises an image coding module, a semantic prompt coding module, a visual language fusion module and a scene analysis semantic decoding module; the model is tested and optimized, and a multi-task loss function is adopted for optimization; a blind guiding auxiliary system is constructed, image acquisition, visual understanding and voice broadcasting functions are integrated, and a closed-loop process is realized. According to the method, the problems of strong target dependence, poor universality and weak semantic comprehension ability of the existing blind guiding identification technology are solved, accurate identification and semantic feedback of complex scenes are supported, and the intelligent level and the environment adaptability of a blind guiding system are improved.

The invention discloses a pair of blind person intelligent glasses based on binocular vision. The glasses comprise a glasses terminal and a cloud end. A data acquisition and transmission module, a voice interaction and feedback module and a power supply system are arranged in the glasses terminal, and the glasses terminal is used for acquiring and processing data and receiving and feeding back voice instructions; the cloud integrates a sensing module, a task planning module, an action module and a path planning and navigation module, the sensing module analyzes instructions and environment information, the task planning module extracts natural language intentions and generates task structures, the action module dynamically generates task templates to execute tasks, and the path planning and navigation module achieves fine-grained obstacle avoidance navigation. The environmental perception precision is improved through binocular vision and GPS fusion, the use threshold is reduced through natural language interaction, the complex task processing capacity of the system is improved through dynamic task decomposition, and the obstacle avoidance accuracy is improved through hierarchical path planning.

The invention discloses an image processing method and system for intelligent glasses, and relates to the technical field of image recognition. The method comprises the following steps: synchronizing and preprocessing data collected by heterogeneous sensors in the intelligent glasses; constructing a global space-time coordinate system; a high-risk area is determined through dynamic saliency analysis, a high-resolution detection ROI is generated, full-pixel analysis is performed on a focus area, and an obstacle list with 3D positions, categories and danger levels is output; and generating a personalized safety path through a safety corridor generation algorithm based on the 3D position of the obstacle, the motion model of the visually impaired person and the real-time position. Data collected by heterogeneous sensors in the intelligent glasses are synchronized, a global space-time coordinate system is constructed, path planning is performed after obstacles are identified, high-frequency IMU angular velocity data and a self-adaptive optical flow correction network are fused, the image reverse compensation precision in a dynamic scene is improved, and navigation safety in a complex scene is guaranteed.

The invention provides a blind person voice navigation auxiliary method with a built-in offline AI intelligent model, and relates to the technical field of computer processing, and the blind person voice navigation auxiliary method comprises the following steps: S01, collecting environment image data in real time through an infrared-visible light binocular camera, synchronously obtaining six-degree-of-freedom motion attitude data of an inertial measurement unit, the binocular infrared-visible light binocular camera comprises a thermal imaging sensing channel; s02, inputting the environment image data into a pre-trained multi-task neural network model, and generating a three-dimensional semantic map containing a blind sidewalk topological structure and a dynamic obstacle detection result; and S03, based on a deep reinforcement learning algorithm, carrying out space-time clustering analysis on the historical paths of the user, and constructing a personalized habit route database fused with human body turning inertia. The sensing precision, the path planning humanization, the positioning accuracy and the extreme weather adaptability of the navigation system in a complex environment are remarkably improved, and safe navigation of the blind is guaranteed.

The invention provides an intelligent blind person navigation system, and relates to the technical field of intelligent wearable blind person navigation, the intelligent blind person navigation system comprises a multi-mode sensing unit, an A I decision center, a bidirectional feedback module and an emergency response system.According to the intelligent blind person navigation system, through a three-layer sensing architecture of a dual-light fusion camera, a laser radar and an ultrasonic array, 94% of obstacle detection rate is still kept under 5lux low illumination, and the blind person navigation efficiency is improved. And the effective detection distance reaches 8 meters. The semantic segmentation algorithm enables the detection rate of the suspended obstacle to rise from 12% to 92%, and the recognition error of the glass door in the underground garage scene is only 2.1 cm. And a multi-sensor space-time alignment technology is adopted, so that the false alarm rate in a complex scene is reduced from 25% to 3.2%, and all-weather and full-height accurate sensing of obstacles is realized. A biological characteristic + environmental risk multi-stage triggering mechanism is adopted, automatic alarming and shared positioning are performed within 2.1 seconds when a user falls down, and the success rate of rescue for falling down of the underground garage is increased from 62% to 100%. An environment video with positioning is automatically recorded without operation timeout, and a'prevention-early warning-rescue 'closed-loop safety net is constructed.

The invention discloses an intelligent asthenopia control method and system based on eye movement and electroencephalogram data. The method comprises the steps that eye movement time sequence data and electroencephalogram rhythm signals of a user are synchronously obtained through a multi-mode sensing unit; inputting the eye movement time sequence data and the electroencephalogram rhythm signal into a multi-modal fusion decision model, and generating a fatigue level through feature weighting based on an attention mechanism; at least one intervention mode is dynamically selected according to the asthenopia level, and the intervention modes comprise the first mode, the second mode and the third mode; in the first mode, a display interface adjusting instruction containing natural light simulation parameters is generated, and the display interface adjusting instruction is integrated with a vegetation color system compensation algorithm; and mode 2: starting a visual training program with ecological images, and generating a dynamic guide mark simulating natural motion on an interface. According to the invention, through a data-environment-physiology multi-dimensional collaborative innovative architecture, the spanning of asthenopia regulation from passive response to ecological active restoration is realized.

A preparation method of a double-network versatile hydrogel with antibacterial and drug sequential release capabilities is provided in the present disclosure, belonging to the technical field of biological corneas. The preparation method includes the following steps: mixing filipin protein-methacrylate, glycidyl methacrylate functionalized quaternized chitosan, polydeoxyribonucleotide, and lithium phenyl(2,4,6-trimethylbenzoyl) phosphinate with drug-loaded micelles, followed by cross-linking under irradiation of ultraviolet to construct a double-network versatile hydrogel with antibacterial and drug sequential release capabilities.

The invention relates to the technical field of computer vision, in particular to a method for generating a blind person navigation obstacle avoidance map. The method comprises the following steps: driving a blind guiding robot to a preset inspection point, and collecting a surrounding environment image in real time; generating a three-dimensional point cloud according to the environment image, and constructing an environment map; extracting feature points based on the surrounding environment image, performing feature matching, and outputting a feature matching result; evaluating an inter-frame motion state by using a feature matching result; determining pose features of the blind guiding robot according to the inter-frame motion state; semantic segmentation is carried out by using the pose features, and an obstacle area is determined; acquiring an obstacle image of the obstacle area, and fusing the obstacle image with the surrounding environment image to generate an obstacle map; and constructing a dynamic occupancy grid based on the obstacle map. According to the invention, real-time updating and intelligent obstacle avoidance functions of the blind navigation map are realized based on the computer vision technology, and the navigation safety and the path planning accuracy are improved.

According to an embodiment of the present invention, provided is a dropper cap which can be detached from a container part accommodating contents and which suctions or discharges the contents. The dropper cap comprises; an inner cap which can be detached from the container part; and an outer cap coupled to the inner cap so as to encompass at least a part of the inner cap, wherein the inner cap and the outer cap can be formed from a metal material.

The invention discloses an intelligent blind guiding glasses system based on a multi-mode large language model. The intelligent blind guiding glasses system comprises an image acquisition module, a voice acquisition module, a large language model module, a bone conduction sound transmission module, a navigation path planning module, a central processor module and a wireless communication module, the image acquisition module is used for acquiring a three-dimensional image of a front scene and providing three-dimensional space information; the voice acquisition module is used for acquiring a voice instruction of a user; the big language model module is used for generating character answers and converting the character answers into voice according to the voice instruction of the user by utilizing a big language model; the bone conduction sound transmission module is used for receiving and playing the voice generated by the large language model module; the navigation path planning module is used for planning a navigation path according to the user position and the destination; the functions of navigation positioning, line guiding, voice prompting and the like are provided for the blind, the glasses are adopted as a carrier, carrying is convenient, voice awakening and other instructions are adopted to replace keys, operation is easy, and practicability is high.

The invention relates to a blind person travel assisting robot which comprises a hardware structure and a control module, and the control module comprises a navigation and positioning module, an AI intelligent control module and a remote monitoring module. The navigation and positioning module comprises map drawing, path planning and obstacle avoidance and fusion positioning, the AI intelligent control module comprises a sensor system, a voice interaction module, a tactile feedback module and an intelligent decision module, the hardware structure comprises a traction device and a mobile robot, and the traction device is provided with a touch feedback device. The touch feedback device comprises multiple sets of linear motors, obstacle information is coded through vibration of different frequencies, the mobile robot is of a circular structure, and a crawler belt is arranged at the bottom of the mobile robot. According to the auxiliary robot, through fusion of multiple positioning modes, the positioning precision and reliability are improved, it is ensured that the robot accurately knows the position of the blind person, and therefore the guiding service is better provided for the blind person.

The invention provides an intelligent tactile stick interaction method and system based on multi-modal perception and edge calculation, and relates to the technical field of intelligent auxiliary equipment. The method comprises the following steps: acquiring environment and position data through a camera, a GPS and an inertial measurement unit; performing multi-modal data fusion and deep learning identification by using an edge calculation module to generate a dynamic environment map; performing real-time path planning and obstacle avoidance based on a map and a destination; analyzing a user instruction through voice recognition and interactively adjusting a path; haptic and auditory bimodal feedback is provided through a vibration module and a voice synthesis module according to a navigation result; and when an emergency obstacle is detected or a user actively alarms, a local and remote alarm mechanism is triggered. The system correspondingly comprises an intelligent tactile stick terminal and a cloud server. According to the invention, accurate and real-time perception and intelligent navigation of the environment are realized, visual and natural interaction experience is provided, an effective emergency help channel is established, and the safety, independence and convenience of travel of visually impaired people are significantly improved.

A dry eye composition containing hypochlorous acid and a demulcent. The demulcent can be polyvinylpyrrolidoe with a molecular weight of 30-50 kDa. The composition can be applied to the surface of the eye with a dropper device or a spray dispenser. Critically, hypochlorous acid is stable in the dry eye composition and maintains its effectiveness at preventing microbial growth.

A vessel including a thermoplastic wall enclosing a lumen is disclosed. The wall supports an SiOx composite barrier coating or layer, for which x is from 1.8 to 2.4, between the wall and the lumen. High Resolution X-ray Photoelectron Spectroscopy (XPS) shows the presence of an interface between the composite barrier coating or layer and the wall or substrate. In one aspect, the interface has at least 1 mol. % O3—Si—C covalent bonding, as a proportion of the O3—Si—C covalent bonding plus SiO4 bonding. In another aspect, the interface has an Si 2p chemical shift to lower binding energy (eV), compared to the binding energy of SiO4 bonding. The result is a tightly adherent composite barrier coating or layer having a high degree of adhesion to the substrate under practical use conditions. Methods of applying the composite barrier coating or layer are also disclosed.

The invention belongs to the technical field of medical apparatus and instruments, and particularly provides an eye-brain organ complex visual restoration system based on cooperative training, comprising: an eye-brain organ complex construction module for constructing a functional eye-brain organ complex; the signal processing module is used for collecting and processing an initial nerve spike signal generated by the brain organ; the stimulation signal generation module is used for generating an electrical stimulation signal for simulating the response of the photoreceptor through an adaptive modulation algorithm; the signal decoding and mapping module is used for stimulating a brain organ to generate a new nerve spike signal based on the electrical stimulation signal and decoding the new nerve spike signal into an external equipment control instruction; and the closed-loop feedback control module is used for performing closed-loop feedback control and optimization on the eye and brain organ complex visual restoration system based on cooperative training. According to the invention, the visual information in the biological signal can be correctly identified and utilized.

A system for reducing the physiologic strain on a surgeon and for reducing turn around time between patient surgical procedures, wherein said surgical procedures are performed successively on patients who are each disposed upon a surgical bed, by providing the ability to repeatably locate and orient surgical assistive features and patient body portions such that surgeon is presented with similar location of surgical assistive features and patient body portions from one surgical procedure to the next. Patient head location may adjusted by inflatable bladders. Patient head rotation, surgeon stool height, operating bed height, wrist rest height and other surgical assistive features are quickly adjustable so as to be repeatable from one surgical procedure to the next. Surgeon fatigue and turn around time between surgical procedures are reduced. The adjustments may be computer-controlled for repeatability and accuracy.

The invention discloses a real-time collaborative cross-scene visual assistance and environment perception system for visually impaired people based on head-mounted equipment. According to the invention, through fusion of a multi-mode perception technology and a neural feedback mechanism, all-around environmental cognition support is provided for visually impaired people. Key targets such as curbs, steps and traffic signals in a complex scene can be accurately recognized, and a safe navigation scheme is generated in real time in combination with a dynamic path planning and obstacle avoidance algorithm. Through personalized feedback modes such as voice and vibration, the system can adjust the interaction rhythm according to the behavior habit and cognitive state of the user, ensure efficient and natural information transmission, effectively reduce the cognitive load of the user, help the visually impaired people to travel autonomously in different environments, improve the independent living ability, and improve the user experience. Real-time response and calculation efficiency are balanced through a collaborative architecture, so that a high-performance auxiliary function is not limited by heavy hardware equipment any more. The universal design reduces the use threshold, and is helpful for more visually impaired people to enjoy the convenience brought by science and technology.

The invention relates to the technical field of eye nursing, and particularly discloses an auxiliary eye nursing device based on data analysis and an analysis system.The auxiliary eye nursing device comprises a nursing bed, a headrest is arranged at the upper end of the nursing bed, a positioning line is arranged at the upper end of the headrest, and a control host is fixedly installed at the upper end of the nursing bed; a moving mechanism is arranged on the outer side of the nursing bed, a lifting mechanism is arranged on the outer side of the moving mechanism, an elastic mechanism is arranged on the outer side of the lifting mechanism, an adjusting mechanism is arranged on the outer side of the elastic mechanism, a detection module and a nursing module are arranged on the outer side of the adjusting mechanism, and a protection mechanism is arranged on the outer side of the adjusting mechanism. According to the nursing bed, the nursing bed with the headrest is arranged, eye examination and nursing of the patient can be conducted on the nursing bed, compared with a traditional nursing mode, discomfort caused by long-time nursing of the patient can be effectively avoided, and medical staff can conveniently conduct examination and nursing operation on the eyes of the patient.

The invention provides a two-stage current intensity adjusting method for an eye therapeutic apparatus, and the method comprises the steps: extracting the impedance effect intensity of a current at a macular center through recognizing the thickness of an impedance barrier layer corresponding to the current limiting degree of a high-impedance region, and combining with the actual penetration thickness, and obtaining the current penetration depth reduction proportion of the current penetration depth at the macular center; the current intensity imbalance degree of the coarse adjustment basic current intensity in the transition subarea is evaluated, and by obtaining the current intensity increase and decrease multiple of the fine adjustment compensation current intensity, the gradient difference between high impedance limitation and low impedance permeation is integrated, and the current intensity is compensated to balance the current intensity imbalance degree of the transition subarea; and updating the current output power level of each partition according to the fine adjustment compensation current intensity, and feeding back the current output power level to a therapeutic instrument circuit in real time to obtain uniform therapeutic intensity distribution so as to be matched with the decreasing proportion of impedance of impedance gradient distribution from high to low.

The diaphragm one-way valve type bacteria-blocking filter comprises a bacteria-blocking filter membrane, a T-shaped rubber ring is arranged on the outer side of the bacteria-blocking filter membrane in an injection molding mode, an air hole penetrating through the T-shaped rubber ring is axially formed in the T-shaped rubber ring, the bacteria-blocking filter membrane is transversely arranged in the large-diameter end of the T-shaped rubber ring and blocks the air hole, and the air hole is communicated with the T-shaped rubber ring. An installation groove is formed in the T-shaped rubber ring in a downward extending mode, a one-way diaphragm is arranged in the installation groove and comprises a positioning ring, an elastic blocking piece and an elastic connecting wire, the positioning ring, the elastic blocking piece and the elastic connecting wire are integrally formed, the positioning ring is clamped in the installation groove, the elastic blocking piece is attached to the bottom wall of the T-shaped rubber ring in a zero-pressure mode and blocks an air hole, and the elastic connecting wire is connected with the T-shaped rubber ring. And the elastic connecting wires are circumferentially and uniformly distributed between the positioning ring and the elastic plugging sheet. The liquid dropping bottle has the advantages that the bacteria-blocking filter membrane is not in contact with liquid medicine in the liquid dropping bottle any more, so that membrane holes in the bacteria-blocking filter membrane cannot be blocked, the hydrophobicity of the bacteria-blocking filter membrane cannot be damaged, and complete hydrophobicity and air permeability are kept.

A low vision aid system including a camera module to be used with a mobile device, including a macro camera configured to focus on near-field objects that is integrated within the low vision aid camera module and an illumination source structured to illuminate a field of view associated with the macro camera, a battery power supply and a wireless communication module. The wireless communication module establishes an isolated Wi-Fi connection to the mobile device. The isolated Wi-Fi connection prevents the mobile device from communicating over other Wi-Fi networks while the isolated Wi-Fi connection is maintained. The wireless communication module receives, via the isolated Wi-Fi connection, instructions from the mobile device, that are associated with operation of the macro camera, and sends via the isolated Wi-Fi connection, a video bitstream to the mobile device based on the instructions.

The utility model discloses a light feeding instrument to solve the problem that retina light damage is possibly caused after long-term use in the prior art, and meanwhile, the treatment effect is also improved. Compared with the prior art in which only parameters such as red light source power and emergent light beam size are concerned, the utility model focuses on the important index of irradiance (power density), emergent light is a collimated Gaussian beam and the optical characteristics of eyes (a human eye refraction system is equivalent to a convex lens with a focal length of 17.2 mm). An optical component diffuser is additionally arranged at the position close to the cornea of a user, so that a collimated Gaussian beam is converted into diffused light to enter the eyes of the user, and diffused light spots are formed on the retina, the treatment area is sufficient, energy distribution is uniform, it is ensured that the irradiance is at the expected safety magnitude, and meanwhile the actual treatment effect is ensured.

The utility model relates to a multifunctional red light irradiation device which is characterized by comprising a red light irradiation assembly which is used for irradiating fundus by using red light so as to carry out myopia physiotherapy; the fundus imaging assembly is used for imaging the fundus; the lens cone is used for packaging at least one of the red light irradiation assembly and the fundus imaging assembly, and in the lens cone, the red light irradiation assembly and the fundus imaging assembly share part of optical assemblies so as to irradiate the fundus and / or image the fundus. According to the red light irradiation device, by sharing part of the optical assemblies, the fundus red light irradiation assembly and the fundus imaging assembly can be integrated on a single device at the same time, and therefore the multiple functions of conducting red light irradiation on the fundus, conducting imaging on the fundus and the like are achieved.

The invention relates to the technical field of atomization medicine spraying equipment, and discloses a medical ophthalmology atomization medicine spraying device and a using method thereof.The medical ophthalmology atomization medicine spraying device comprises a shell, an electric push rod is fixedly connected to the top of the shell, a push rod is fixedly connected to the output end of the bottom of the electric push rod, a water draining groove is formed in the inner wall of the shell, and a water draining pipe is fixedly connected to the bottom of the shell; due to the fact that the hollow core block is in a hollow core state, the hollow core block can ascend under the influence of buoyancy, the hollow core block can drive the rack to synchronously move while ascending, the rack can drive the rotating gear meshed with the rack to rotate while moving, and the connecting line can be wound on the right side of the rotating gear through rotation of the rotating gear; the connecting line rolls to drive the end, connected with the connecting line, of the rotating cover to rise, so that liquid accumulated in the sewer pipe flows into a pipeline for collecting the liquid, the situation that mist in the device is reduced and the atomization effect is affected due to the fact that the liquid discharging opening is opened for a long time can be avoided, and meanwhile the effect of quantitative liquid discharging is achieved through buoyancy.

The invention discloses a visual prosthesis control method and system and a storage medium, and relates to the field of medical instruments, and the method comprises the steps: extracting at least one initial target image based on a target object selection result fed back by a user, carrying out the region-of-interest extraction of the initial target image, and obtaining a target object contour image, grouping each contour pixel point based on the brightness values of the contour pixel points in the target object contour map to obtain a plurality of data groups and a stimulation sequence thereof, mapping a stimulation current matrix of each data group based on the stimulation current value and the space coordinate of each contour pixel point, and obtaining a stimulation current matrix of each data group based on the stimulation sequence; and controlling the release of the stimulation current in the electrode array based on each stimulation current matrix in sequence. Redundant information is reduced based on user feedback and region-of-interest extraction, the stimulation sequence based on the average brightness value of each data set is configured, the stimulation current is controlled to be released in the electrode array based on each stimulation current matrix in sequence, and the perception quality of the brain to the target object is improved.

The invention discloses an intelligent ring for a blind person, relates to the technical field of travel assistance for the blind person, and aims to solve the problem that an existing travel auxiliary tool for the blind person cannot provide comprehensive and timely travel assistance for the blind person, the intelligent ring comprises a wearing ring and a protection ring which are used for forming the ring, and is characterized in that a storage cavity is formed between the wearing ring and the protection ring; a 360-degree ultrasonic sensor array, a high-precision microprocessor, four groups of linear vibration feedback modules, a low-power-consumption Bluetooth 4.0 module and a rechargeable lithium battery are arranged in the accommodating cavity; the 360-degree ultrasonic sensor array comprises four sets of micro sensors which are located on the front side, the rear side, the left side and the right side of the containing cavity respectively, and the range of a single set of micro sensors is 120 degrees, so that all-directional coverage of the surrounding 360-degree space is achieved, and the blind can sense obstacles from all directions. The method has the advantage that the blind user can comprehensively and timely obtain the travel information.

An eye drop propulsion device and method for propelling a drop of fluid towards an eye, including a compression chamber connected to a container configured to retain fluid, a dispenser aperture connected to the compression chamber and configured to be selectively occluded or not occluded, and a compressor configured to alter pressure in the compression chamber such that when the compressor is activated when the dispenser aperture is occluded, air is forced to flow from the compression chamber into the container, and when the compressor is deactivated, a vacuum is created in the compression chamber causing a portion of fluid in the container to flow into the compression chamber, and when the compressor is activated when the dispenser aperture is not occluded, a drop of fluid is propelled towards the eye.

Provided is a system using smart contact lenses for measuring biosignals, the system comprising: smart contact lenses for measuring biosignals or injecting drug into the human body; and an accessory device for communicating with the smart contact lenses and supplying power thereto, wherein the smart contact lenses and accessory device are each provided with at least one electrode for connecting to the human body, and transmit and receive electrical signals between each other using the human body as the medium, and the smart contact lenses are provided with a power reception circuit for receiving operational power from the drug injection device.

The invention discloses an eye examination device with a postoperative care eyelid supporting function, and belongs to the technical field of eye examination.The eye examination device comprises an eyeshade type frame, a tightening belt, a shell, an examination base, an examination module, an eyelid dilator and the like, stable wearing can be achieved through the tightening belt, the position of the examination module is adjusted through a micro electric push rod, and the eyelid dilator is arranged on the shell; an upper eyelid supporting piece and a lower eyelid supporting piece of the eyelid dilator achieve accurate dilation by means of the SMA driving dilator, a contact air bag on an arc-shaped silica gel supporting pad can adjust contact pressure through a pneumatic adjuster, a piezoelectric ceramic vibrator can assist in tear adjustment and muscle relieving, a liquid absorber can treat redundant tears, and the device integrates a control module and various detection modules and is convenient to use. The eye protection device can monitor the eye state in real time and trigger a protection mechanism, provides safe and comfortable support and nursing for postoperative patients while completing eye examination, and is suitable for ophthalmologic postoperative examination and rehabilitation assistance.