2735results 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 belongs to the technical field of glasses, and discloses a pair of out-of-focus glasses for treating hyperopia, which comprises hyperopia out-of-focus glasses lenses, the hyperopia out-of-focus glasses lenses are convex lenses, a central vision far optical area is arranged at the circle center of each convex lens, hyperopia out-of-focus micro lenses are uniformly distributed on the periphery of each central vision far optical area, and the micro lenses are arranged in the central vision far optical area. Peripheral micro-concave lenses are added on the basis of previous hyperopia glasses, so that an object image forms hyperopia defocus on peripheral retina, after the peripheral retina recognizes a hyperopia defocus signal, in order to form a clear object image on the retina, eyeballs can start a sclera and choroid compensation mechanism by the brain, abnormal growth of the eyeballs is caused, and the hyperopia defocus effect is improved. And the speed of reducing the hyperopia degree is further increased.

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.

A device includes an image capture device directed towards a user's eye and a dispensing mechanism configured to receive an apparatus containing fluid. The image capture device is coupled to a controller that processes images of the user's eye captured by the image capture device to determine when the user's eye has been open for at least a threshold amount of time. An orientation sensor included in the device determines an orientation relative to vertical of the device. When the controller determines that the user's eye has been open for at least a threshold amount of time and that the device has an orientation within a specific range, the dispensing mechanism applies force to the apparatus storing fluid to dispense fluid. One or more sensors in the device detect when fluid has been dispensed.

Methods of administering a liquid formulation of an ophthalmic agent to a topical ocular location of an eye are provided. Aspects of the methods include delivering to the topical ocular location a dose of the liquid formulation that can be wholly accommodated by the tear film of the eye. Devices and kits for practicing the methods are also provided. The methods, compositions and kits find use in a variety of applications, including therapeutic, diagnostic and cosmetic applications.

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.

Apparatus, methods, and systems for delivery and administration of pharmaceutical, therapeutic and cosmetic substances to users. The method includes providing a removable capsule having an atomizer, inserting the removable capsule in a channel of a base unit of a device. The channel is in fluid communication with a mixing chamber of the base unit, and the base unit defines openings on the base unit configured to receive a portion of a conduit and a removable air mover unit. Further, the method includes dispensing, using the atomizer, the at least one medication from the removable capsule to the mixing chamber of the base unit, and using the removable air mover unit, causing air and the at least one medication within the mixing chamber to be conveyed from the mixing chamber to the conduit such that air and the at least one medication dispensed from the removable capsule exits the conduit.

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.

Disclosed herein are embodiments of a polymer-based gel implant and methods of making and using the same. The polymer-based gel implant comprises a polymer component and a therapeutic agent. In some embodiments, the polymer-based gel implant can be used to treat and / or prevent retinal diseases and / or retinopathies. The polymer-based gel implant exhibits physical properties that provide the ability to safely place the polymer-based gel implant in an ocular region without undesired diffusion and also to allow for controlled and timely release of the therapeutic agent to a desired region of the ocular region, such as the retina. In particular disclosed embodiments, the polymer-based gel implant can be used for safe and effective gene therapy.

The invention discloses an eye frequency spectrum far infrared atomizable massage instrument in the technical field of eye nursing equipment, the structure is reasonable, a water tank lower cover, a water tank upper cover and a waterproof cover are spliced into a whole and are installed in a middle frame, a nanoscale atomization technology is adopted, and after a proper amount of frequency spectrum water, mineral water or specified liquid is injected into the water tank, the water tank upper cover and the waterproof cover are sealed, the massage instrument can be used for massage. A water tank silica gel cover is fastened, the atomization function is started, a user can enjoy the new moisturizing experience brought by nanoscale atomization to the two eyes, a plurality of silica gel massage heads are installed in installation holes B in a middle frame, the silica gel massage heads have the vibration massage effect, the silica gel massage heads are correspondingly arranged at the acupuncture points of the eyes, and therefore the user can enjoy the new moisturizing experience. Meanwhile, the silica gel massage head has far infrared frequency spectrum and hot compress effects, the silica gel massage head is matched with the atomization function, the multifunctional effect that atomization, acupoint massage and hot compress are combined is achieved, and the use effect and the user experience of the eye frequency spectrum far infrared atomization massage instrument are effectively improved.

The invention relates to an amniotic membrane mirror manufacturing method which comprises the following steps: S1, performing transparency and shape fixing treatment on an amniotic membrane to obtain a spherical amniotic membrane area; s2, the super oxygen permeable material is subjected to casting plasticity to obtain a transition area and a landing area which are integrated, and the landing area surrounds the transition area; wherein the transition area is aspheric and the vertical projection of the transition area is annular, and the landing area is spherical and the vertical projection of the landing area is annular; s3, a plurality of fluid channels which are arranged in a crossed mode are etched in the top of the transition area, and the multiple fluid channels form a latticed path body extending in the circumferential direction of the transition area; s4, forming a plurality of uniformly arranged nano structures in each grid region of the path main body to form a connection path; s5, the fluid channel is filled with a biocompatible adhesive, the amniotic membrane area is placed on the transition area, and the bottom edge of the amniotic membrane area abuts against the connecting path; the method has the beneficial effects that on the basis of ensuring the biological characteristics of the amniotic membrane area, the stable connection between the amniotic membrane area and the transition area is realized.

The invention discloses a liquid dropping bottle with bacteria-blocking and oxygen-blocking dual protection functions, which comprises a bottle body, a composite film bag arranged in the bottle body, a ventilation hole formed in the bottle body, a pump body arranged on the bottle body, a trigger movably arranged on the pump body, a liquid dropping column arranged on the trigger, and a first spring arranged in the pump body, the trigger abuts against the first spring, a pump core is arranged in the trigger, a one-way valve shaft is inserted in the pump core, a first ring groove is reserved between the one-way valve shaft and the pump core, a one-way valve plate is arranged on the one-way valve shaft, a pressure limiting deformation gap is reserved between the one-way valve plate and the one-way valve shaft, and a second spring is arranged in the one-way valve shaft. The second spring abuts against the one-way valve plate, and the one-way valve plate blocks the liquid outlet hole. The liquid dripping device can play a good role in resisting oxygen and bacteria during liquid dripping, and only quantitative liquid medicine can be squeezed out no matter how much force is used for pressing the trigger, so that the liquid medicine drips in the form of liquid drops and cannot be jetted.

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.

The utility model relates to an eye hot compress treatment device which comprises a supporting frame, and the supporting frame is provided with an arc-shaped part matched with the outline of the head and ear hanging parts used for being hung on ears. The two eye hot compress pieces are arranged at the left end and the right end of the front side of the supporting frame respectively, and each eye hot compress piece comprises a heating film; the device further comprises a control host, and the heating film is electrically connected with the control host. The portable earphone is simple in overall structure, small and exquisite in size, light in weight, convenient to wear and high in adaptability, and compared with a traditional structure, the portable earphone greatly improves portability and experience of a user.

The present solution relates to a pressure-adjustable test eye for tonometers, in particular for non-contact tonometers. The proposed pressure-adjustable test eye for tonometers consists of a base element with a pressure source, to the edge of which a cornea-mimicking film is attached, the resulting cavity being filled with liquid or gas. According to the invention, the cornea-mimicking film has gradually varying conductivity properties for mechanical waves, starting from a central, mechanically excitable area. A self-supporting film with a certain residual stiffness is used to replicate the cornea. The pressure-adjustable test eye is intended for tonometers, in particular for non-contact tonometers, to generate measurement signals that are as realistic as possible in order to carry out regular functional tests and / or calibrations. However, the pressure-adjustable test eye is also suitable for elastography or other applications.Elastometry can be used, for example, to perform pre- and postoperative assessments of corneas.

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.

The invention provides an eye atomization medicine applying device, and relates to the field of medical care instruments, the eye atomization medicine applying device comprises a device main body, and a wearable eyeshade is arranged at the outer end of the device main body; the limiting connecting piece is inserted into the outer side of the top end face of the positioning cover plate. The corrugated hose is communicated between the wearable eyeshade and the limiting connecting piece; the positioning support is fixedly connected to the inner side of the rear end of the wearable eyeshade, and drug delivery through grooves are formed in the left side and the right side of the positioning support; the driving rack is arranged between the wearable eyeshade and the positioning bracket in a front-back sliding manner; the driving fulcrum shaft is rotationally connected to the upper side of the rear end of the wearable eyeshade; the opening and closing control mechanism is arranged among the driving fulcrum shaft, the driving rack and the positioning bracket; the opening and closing control mechanism is provided with transmission gear rings, and the two transmission gear rings are rotationally arranged on the left side and the right side of the inner end of the positioning support respectively, so that liquid medicine makes full contact with the eyes, and the phenomenon that the liquid medicine flows and escapes at the edge of the wearable eyeshade is greatly relieved; the phenomenon that part of atomized liquid easily runs off and escapes at the edge of the eyeshade is avoided.

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 provides a multimedia visual auxiliary control system based on myopia defocus. The multimedia visual auxiliary control system comprises a virtual content display module and a virtual content regulation and control module, wherein the virtual content display module is used for displaying virtual content on eyeballs of a user; a long-range background light beam is transmitted through the virtual content display module and then enters eyeballs of a user; the virtual content regulation and control module is used for regulating the focusing position of the virtual content, and when a user watches the virtual content, myopic defocus is generated by the distant scene background light beam; an electronic display screen light source is combined with natural light, retina defocus difference is brought through lens near stimulation adjustment, and myopic defocus is generated. By means of the scheme, eyeballs can naturally and comfortably receive stimulation of natural light in an open environment, and meanwhile a long-time reading task can be achieved.

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.

Forceps treatment systems are described in which a forceps apparatus may generally comprise a first handle and a second handle coupled to one another near or at respective proximal ends. A first paddle may be coupled to the first handle and define a first inner surface, a second paddle may be coupled to the second handle and define a second inner surface which is positioned in apposition to the first inner surface. Furthermore, a debriding member may extend proximally from the first and second handles and reduce and curve gently to define a debriding edge for debriding tissue in proximity to one or more meibomian glands. The forceps apparatus may be used in combination with a heat treatment for treating one or more meibomian glands in a subject.

Compositions and methods for inducing pterygium regression from visual axis / central cornea, stabilizing pterygium, treating hyperemia and symptoms in pterygium patients, and treating pterygium recurrence following pterygiectomy are disclosed. The methods include administration of a multikinase inhibitor, an antimetabolite or a combination thereof to patients in need thereof.

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.