119 results about "Eyelid layers" patented technology

The invention relates to the technical field of civil aviation air traffic management, and discloses a pre-post air traffic controller fatigue objective prediction method and system, and the method comprises the steps: presenting a mental movement alertness task to a user; the method comprises the following steps: in the process of executing a mental movement alertness task by a user, acquiring eye image data containing the user through image acquisition equipment, and recording the response time and error rate of the user to the mental movement alertness task; calculating to obtain an eyelid closure parameter based on the eye image data; calculating a reaction time parameter and an error rate parameter based on the reaction time and the error rate; and determining a comprehensive fatigue value of the user based on a weighted combination of the eyelid closure parameter, the response time parameter and the error rate parameter. The invention aims to provide an objective fatigue prediction method and system for a pre-post air traffic controller so as to overcome the defects that a traditional subjective scale is insufficient in reliability, a standard objective test consumes too long time and is not suitable for pre-class rapid screening.

An apparatus for monitoring Intracranial Pressure (ICP) includes a non-invasive, flexible, wearable device (30), (60) with micro ultrasonic transducer arrays (32) fixed thereon. The wearable device (30), (60) is attached to the closed eyelid (21) of a conscious or unconscious patient with an adhesive (48). Using ultrasound sonography, the ultrasonic transducer arrays (32) on the wearable device (30), (60) image the optic nerve (26) behind the eyeball (20) to measure the Optical Nerve Sheath Diameter (ONSD). The ONSD provides an indication of the ICP in real time.

Dry eye treatment apparatus and methods are described herein which generally comprise a patch or strip affixed to the skin of the upper and / or lower eyelids to deliver heat or other forms of energy, pressure, drugs, moisture, etc. (alone or in combination) to the one or more meibomian glands contained within the underlying skin. The treatment strip or strips include one or more strips configured to adhere to an underlying region of skin in proximity to one or both eyes of a subject such that the one or more strips allow for the subject to blink naturally without restriction from the one or more patches. Moreover, the one or more strips may be configured to emit energy to the underlying region of skin and where the one or more strips are shaped to follow a location of one or more meibomiam glands contained within the underlying region of skin.

Disclosed herein are methods and systems for real-time detection of psychophysiological states from eye movement data. The methods involve capturing eye gaze vectors and eyelid openness levels over time using a user-facing camera. A sequence of discrete eye behaviors, including saccades, fixations, blinks, and long closures, is determined from the eye gaze vectors and eyelid openness levels. The sequence of discrete eye behaviors is transformed into a machine readable representation using a sliding time window. A mathematical or machine learning model then maps the machine readable representation of eye behaviors to one or more psychophysiological states. This approach provides a computationally efficient mechanism for predicting psychophysiological states by compressing gaze data into a continuous, numerical representation of eye behavioral events correlated with human psychophysiological states, including drowsiness, cognitive load, stress, and others.

The invention relates to the technical field of air traffic management, and discloses an in-post controller fatigue prediction method based on a work type and a circadian rhythm, and the method comprises the steps: obtaining a face video frame in a controller post, and carrying out the calculation to obtain a PERCLOS time sequence representing an eyelid closing proportion; obtaining an exogenous factor related to the control task; the PERCLOS time sequence and the ectogenic factors are coded and input to a trained time sequence neural network model, and the time sequence neural network model is configured to apply different weights to the work types, the circadian rhythms and the work requirements so as to carry out differential modeling; and generating a fatigue level curve covering a preset prediction time window based on the output of the time sequence neural network model. The invention aims to solve the technical problems that a fatigue monitoring method in the prior art is lagged in response and insufficient in adaptability to dynamic working scenes, and provides a method capable of actively and accurately predicting the future fatigue development trend of the controller.

Devices and associated methods are described that provide needle extension / retraction with fine control, for in-situ needle advancement into biological spaces, thin cavities and tissues, such as those in the eye, for fluid / drug / material delivery or drainage. The device includes a distal end portion of the device with a lateral surface from which a needle extends when the lateral surface is adjacent to a biological surface, allowing injections in hard-to-reach locations, such as behind the eyelid and posterior to the superior or inferior orbital rim. In at least one embodiment, a needle advancement mechanism is also coupled to increase fluid pressure during fluid injection. In at least one embodiment light shone from the distal end portion of the device or through the needle bore helps to localize an injection site for a user looking inside the eye via changes in light intensity and / or light color depending on the needle tip depth.

The invention discloses a Parkinson's disease patient video analysis and evaluation system based on artificial intelligence. The method comprises the following steps: collecting a multi-modal data set; extracting face key point data in the multi-modal data set by using a Mediappe face detection algorithm, and analyzing blink frequency, eyelid movement symmetry and face muscle tension change; extracting a hand joint motion track through an OpenPose model, and calculating tremor frequency, motion completion time and motion smoothness; detecting step length, step width, step speed and coordination of left and right limbs in the gait of the human body based on a YOLOv8 target detection algorithm; dynamically weighting the facial tremor features, the limb movement features and the gait dynamics features through a multi-head attention mechanism; and outputting the symptom evaluation index of the Parkinson's disease patient through the LSTM network. And the efficiency and accuracy of illness state assessment are improved.

The present application relates to a dry eye treatment system. Dry eye treatment devices and methods are described herein, which generally include a patch or strip that is affixed to the skin of the upper and / or lower eyelid to deliver heat or other forms of energy, pressure, medication, moisture, etc. (alone or in combination) to one or more meibomian glands contained within the underlying skin. The treatment strip includes one or more strips configured to be attached to an area of skin beneath one or both eyes of a subject adjacent to the subject, such that the one or more strips allow the subject to blink naturally without being constrained by the one or more patches. In addition, the one or more strips can be configured to emit energy to the underlying skin area and wherein the one or more strips are shaped to conform to the position of one or more meibomian glands contained within the underlying skin area.

A technique is provided for identifying correct or sufficient doses in a patient being treated with a drug for a neurological deviation condition. A method may include performing a plurality of fright response tests on a user, each test utilizing a device having a camera, a display, and optionally a speaker, and each test occurring at a different time after the user has been administered a medicament. The method may include receiving a plurality of images of at least one eye of the user from a camera during each test, and then calculating a magnitude of eyelid closure based on each image. The method may include determining a value of a correlation between a predetermined plasma concentration of the drug and the determined amplitude, and then determining whether a correct or sufficient dose has been reached based on the value of the correlation.

The eyelid massager 100 comprises: a handle 102 having a free end 104; and a roller 106 pivotally connected to the free end of the handle. The roller 106 is dumbbell-shaped, the curvature of the outer surface of the roller being matched to the curvature of the closed eye of the user such that during a massage action, the roller 106 comes into contact with the eyelid along the entire length of the eye to press a plurality of meibomian glands associated with the eyelid, promoting release of occluded grease. The handle 102 is Y-shaped 200 at the free end 104 to pivotally retain the roller 106 at both ends 204 by a pair of inwardly extending pins 202 that engage a pair of holes provided on the roller 106. The roller 106 is made of silicone rubber and a curved portion of the outer surface has a plurality of ribs 208.

The invention discloses an ocular surface image acquisition device and a working method, and belongs to the technical field of ophthalmic instruments. According to the invention, eyelids are opened through a mechanical structure in which an inverted U-shaped structure is matched with a gear and a rack, ocular surface images are collected through a CCD camera in a stable and controllable light source environment, the images are transmitted to a mobile phone or a computer terminal through Bluetooth, and ocular surface diseases are classified and identified by using a deep learning method based on image software. The device is simple to operate and low in cost, and can be operated, used and used only by a person to observe the ocular surface state.

An eyelid massager 100 includes a handle 102 having a free end 104, and a roller 106 pivotally coupled thereto. The roller 106 is dumbbell shaped having a curvature on an outer surface that matches curvature of a closed eye of the user, such that the roller 106 makes a contact with eyelids along an entire length of the eye during a massaging action, to press a plurality of meibomian glands associated with eyelids, facilitating release of clogged oils. The handle 102 is Y-shaped 200 at the free end 104 to pivotally hold the roller 106 at two ends 204 through a pair of inward extending pins 202 that engage with a pair of holes provided on the roller 106. The roller 106 is made of silicon rubber, and the curvature of the outer surface having a plurality of ribs 208.

Controllers for dry eye treatment apparatus and methods are described herein which generally comprise a patch or strip affixed to the skin of the upper and / or lower eyelids to deliver heat to the one or more meibomian glands contained within the underlying skin. The treatment strip or strips include one or more strips configured to adhere to an underlying region of skin in proximity to one or both eyes of a subject such that the one or more strips allow for the subject to blink naturally without restriction from the one or more patches. A controller is in communication with the one or more strips and is programmable to monitor a temperature of the one or more strips to provide a treatment therapy above a threshold temperature of, e.g., 39° C., and below a maximum temperature of, e.g., 48° C., over a treatment period of 12 minutes.

Disclosed are methods of treating dry eye disease. More particularly, this disclosure relates to a method of treating dry eye disease comprising exposure of a palpebral conjunctiva of an eye followed by transconjunctival irradiation in the presence of a photosensitizer to initiate crosslinking in tarsal plate tissue underlying the palpebral conjunctiva.

The invention discloses an eyelid traction device for eye surgery, and belongs to the technical field of eyelid surgery traction equipment, the eyelid traction device comprises a brain back base plate, a multidirectional adjusting device for adjusting the traction equipment is arranged on the brain back base plate, a traction adjusting handle structure for clamping rotation is arranged on the multidirectional adjusting device, and an eyelid wound pulling device is arranged on the traction adjusting handle structure. The eyelid traction device for the eye surgery aims at reducing damage to the face caused by an overlarge eyelid surgical incision and ensuring that the surgical field is exposed to the maximum degree, the eyelid traction device for the eye surgery is provided, the position of the traction incision of traction equipment can be adjusted while the eyelid surgical incision is dragged, the traction angle and position can be changed according to needs, and the operation efficiency is improved. The frictional resistance between the traction equipment and the incision skin is ensured, and the surgical field is fully exposed.

The invention discloses a meibomian gland extrusion massager in the technical field of meibomian gland massage. The meibomian gland extrusion massager comprises a control clamping handle and a massage part, the control clamping handle is composed of an upper clamping handle and a lower clamping handle, elastic parts are connected to the inner sides of the ends of the upper clamping handle and the lower clamping handle in a clamped mode through clamping grooves, the upper clamping handle and the lower clamping handle form a V-shaped structure through the elastic parts, and the elastic parts can enable the upper clamping handle and the lower clamping handle to have elastic clamping force; the massage part comprises two massage pieces, and the two massage pieces are correspondingly arranged at the ends, away from the elastic part, of the upper clamping handle and the lower clamping handle respectively. The electric massage roller is attached to the surface of the eyelid to conduct rolling extrusion on the meibomian gland area, and grease in meibomian glands is gradually extruded and separated out by means of rolling acting force. Meanwhile, sterilized cotton fibers matched with the electric massage rollers are synchronously attached to the eyelids, grease separated out through extrusion is adsorbed in real time, the adsorbed grease can be clearly displayed on the sterilized cotton fibers, a user can conveniently and visually master the grease discharging condition, and grease is prevented from remaining on the eyelids.

Systems and methods for determining a degree of eye closure are provided. Lower and upper eyelid traces are obtained, each trace including locations of the respective eyelid for a plurality of consecutive time increments. A first and second window are determined, the first window preceding the second window and each window including a set of time increments in the plurality of consecutive time increments. An opening metric is generated comprising a measure of central tendency of differences between the locations of the upper eyelid and the lower eyelid across the time increments in the first window. An excursion metric is generated comprising a difference between a maximum and minimum location of the upper eyelid across the time increments in the second window. A closure degree score based upon the excursion metric and the opening metric is used to provide a degree of eye closure of the first eye.

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 invention provides a liquid pipeline device for an eye heating head, and the device comprises a heating head connector which is used for connecting the eye heating head in a contact eyelid region in a use state; the pipeline channel is a liquid circulation channel, and the pipeline channel is connected with the heating head connector; the peristaltic pump is used for providing power required by liquid flowing; the temperature central control device is connected to the pipeline channel and is configured to control the temperature of the liquid; in the use state, the liquid pipeline device is connected with the eye heating head to form a closed channel, the peristaltic pump drives liquid in the liquid pipeline device and the eye heating head to flow circularly, and the technical bottlenecks of existing eye treatment equipment in the aspects of heating uniformity, temperature control precision and use cost are solved by optimizing heat conduction and temperature control.

The utility model relates to the technical field of training teaching aids, in particular to a sclera jacking and pressing training teaching aid, which comprises a head model, a main control board, a silica gel eyeball model, a Bluetooth module, a voice module and a USB (universal serial bus) charging port, and is provided with a structure of a head, eye sockets, eyelids, conjunctival sacs and eyeballs, so that the model is closer to a real human eye structure; according to the simulation operation teaching aid, the jacking effect can be sensed in real time, a prompt tone can be given out, final evaluation can be made, a wide-area fundus photograph of a real case can be mapped into a retina 3D printing model, a vivid crack-derived retina shedding simulation operation teaching aid is achieved, meanwhile, a virtual eyeball is simulated at a mobile phone or a computer end, the jacking position, range and force are synchronously reflected, and the simulation operation teaching aid can be used for simulating the retina. The sclera jacking and pressing teaching aid is a multimedia physical teaching aid which combines visual virtual guidance and force and position perception, enables an operator to feel more vivid operation and more real feeling, obtains intelligent guidance of a computer, and quickly masters the sclera jacking and pressing technology in an operation.

The utility model discloses a kind of cataract surgery tear capsule auxiliary devices, including vertically arranged U-shaped seat, U-shaped seat is connected in one side of two movable seats by drive assembly, movable seat is fixedly connected in one end of long rod, the other end of long rod is screw-connected with the first screw rod perpendicular to long rod, the one end of first screw rod is equipped with first knob, the other end of first screw rod is equipped with annular groove, the both sides of U-shaped seat are equipped with corresponding connecting block, connecting block is fixed to patient face by corresponding bandage, this kind of cataract surgery tear capsule auxiliary device uses, first, by bandage, the whole is fixed to patient face, then by drive assembly, two movable seats drive corresponding first screw rod in opposite or opposite direction synchronous movement, to tear open by two first screw rods respectively to upper eyelid and lower eyelid, annular groove is equipped on first screw rod, support eyelid by annular groove, it is convenient to tear capsule to eyeball.

The device of the present invention allows for a method of treating a patient exhibiting proptosis of eye tissue by treating inflamed tissue behind the eye or treating the thyroid directly or treating a reflexology zone to reduce pressure and inflammation of the eye tissue using pressure pulses or shock waves. The treatment method for bulging eyes has the steps of placing an applicator head of an acoustic shock wave or pressure pulse generator or source on or near an eye or eyelid region, temple, thyroid or reflexology zone; coupling the applicator head directly or indirectly to an exposed surface of the region being treated; and activating the generator or source to emit pressure pulses or acoustic shock waves to the eye or eyelid region, temple, thyroid or reflexology zone to treat the eye tissue exhibiting high pressure and inflammation to reduce the pressure and inflammation.

The utility model relates to the technical field of medical cosmetology, and discloses an eyelid recess correction auxiliary instrument which comprises an arc-shaped plate, a first rubber pad is bonded to the bottom of the arc-shaped plate, vertical plates are fixedly connected to the front side and the rear side of the arc-shaped plate, first round holes are formed in the vertical plates, and the first round holes are communicated with the arc-shaped plate. First fixing supports are arranged on the surface of the vertical plate, the inner wall of the first round hole and the bottom of the first rubber pad in an attached mode, a strip-shaped hole is formed in the vertical plate, and second cylinders are fixedly connected to the left side and the right side of the inner wall of the strip-shaped hole. The auxiliary instrument can be fixed to the face of a patient through the annular adhesive tape on the first fixing support, after the bent hook needle body hooks a flap, the bent hook needle body can be fixed to the auxiliary instrument through the second fixing support, and at the moment, the stability of the bent hook needle body in the operation process can be guaranteed through the auxiliary instrument; therefore, the operation difficulty of a doctor is reduced, and one hand of the doctor is liberated.

The utility model relates to a radio-frequency therapeutic apparatus for meibomian gland dysfunction and dry eye. The radio-frequency therapeutic apparatus comprises an operating handle and a main machine body, the operating handle comprises a handheld rod and a radio frequency head; the radio frequency end of the radio frequency head is provided with at least two electrodes, an insulator is arranged between every two adjacent electrodes, and the connecting end of the radio frequency head is connected to the handheld rod. The electrode is capable of generating a radio frequency current. The radiofrequency head has the advantages that the radiofrequency end of the radiofrequency head abuts against the outer portion of the eyelid of a patient, radiofrequency current is applied to the eyelid through the electrode, oscillation of charged ions such as water containing polar molecules in eyelid tissue is promoted, and heat energy is generated through friction between the charged ions, so that the eyelid is heated, and abnormal meiboid blocked in meiboid glands is melted; the heat conduction speed is high, the heating depth is increased, and the treatment effect is improved. The radio frequency end of the radio frequency head is provided with at least two electrodes, the two electrodes apply radio frequency current to different positions of the eyelid at the same time, the applying uniformity of the radio frequency current is improved, the whole meibomian gland of the eyelid is evenly heated, and the dry eye treatment effect is improved.

The present disclosure is directed to an ex vivo eye model system for screening ocular products with programmable blinking and tear flow control. In one example implementation, the ex vivo eye model system includes an eyeball core, an upper and lower eyelid frame, a servo, and a tear fluid delivery system. The eyeball core may be configured to hold a biological eye. The upper eyelid frame and the lower eyelid frame may be configured to replicate natural blinking actions and interact with the biological eye. The servo may be operatively connected to the upper eyelid frame and the lower eyelid frame. The servo may be configured to simulate controlled blinking actions by actuating the upper eyelid frame and the lower eyelid frame to move corresponding eyelid membranes of the biological eye. The tear fluid delivery system configured to deliver a fluid to an ocular surface of the biological eye.

A system for treating clogged glands of the eye includes a heated eye mask, an electrical cord, and a controller. The heated eye mask includes an outer layer of surface material, an inner layer of surface material, and a graphene heating element. The graphene heating element is disposed between the outer and inner layers of surface material in a therapeutic region of the heated eye mask. The therapeutic region of the heated eye mask extends along the Meibomian glands of the eye. The graphene heating element is encapsulated by an electrically insulating cover. A thermally conductive material evenly distributes heat across the therapeutic region of the heated eye mask. The electrical cord provides power to the heated eye mask. The controller is provided on the electrical cord for controlling the heated eye mask to heat to one of at least four pre-set temperature levels.

This invention belongs to the field of AR glasses control technology, specifically disclosing a smart AR glasses control method. This method continuously senses extreme environmental parameters before and during power inspection by real-time acquisition of high-voltage electromagnetic field spectrum, ambient light, and wind speed data in the power inspection area, solving the problems of existing AR glasses not considering environmental resistance and functional failure in extreme scenarios. Simultaneously, it utilizes Fast Fourier Transform to extract the dominant frequency characteristics of the electromagnetic field, combines this with ambient light statistics to adjust the AR glasses settings, and activates jitter compensation when wind speed exceeds limits, enabling the glasses to effectively avoid signal interference and ensure basic functional stability in power inspection scenarios such as strong magnetic fields and complex lighting. Furthermore, by synchronously monitoring the pupil diameter change rate and eyelid occlusion ratio, it verifies eye movement status in real-time throughout the inspection process and generates a precise iris gaze trajectory after dynamic judgment and calibration, ensuring the accuracy of eye-tracking interaction under complex working postures.

The application discloses a adjustable eyelid closure fixing patch with observation ports, which comprises a base, two observation windows arranged in the middle of the base, two sliding channels arranged on one side of the base and a pneumatic transmission assembly. When in use, the integrated structure of pneumatic linkage and connecting rod transmission is combined to realize the whole process of patch pushing, automatic alignment and rolling compression by pressing the handle, which is simple and efficient to operate. The precise plug-in structure of the elastic boss and the socket solves the problems of traditional patch alignment misalignment and observation window deviation. The observation window can be used to monitor the eye condition in real time. The mushroom-shaped micro-column dry adsorption structure at the bottom of the lower eyelid patch does not need glue to paste, does not hurt the delicate skin of the eye and has no risk of allergy. The fixing is firm and does not fall off. The pneumatic transmission has a flexible buffering effect, the eyelid closure tightness can be flexibly controlled by adjusting the pressing force of the handle, and the rigid compression damage to the eye tissue is avoided.

The invention relates to the technical field of medical instruments, in particular to a self-service thermal pulsation meibomian gland therapeutic apparatus which comprises a control module, the control module is provided with a massage module, the control module comprises a machine body, a conveying cylinder is arranged in the machine body, the conveying cylinder is fixedly connected with a fixing plate, the conveying cylinder is fixedly connected with a heater, and the massage module comprises a plurality of cover frames. A massage air bag is arranged in the cover frame and communicated with a hose, and the fixing plate is communicated with a conveying pipe. According to the eyelid hot compress device, the massage air bag is arranged in the cover frame, the piston plate can move back and forth in the conveying cylinder, the piston plate can press air into the conveying pipe, the diameter of the communicating pipe is relatively small, so that the air can support the massage air bag and press the eyelids, and the air can conduct hot compress on the eyelids through the massage air bag; the massage air bags can be attached to the eyelids, a patient can operate the eyelids in a self-service mode, home treatment is facilitated, and the dry eye symptom can be relieved in time.

The invention discloses a construction method of a rat keratoconjunctival disease model, and particularly relates to the technical field of animal models. Lipopolysaccharide (LPS) is adhered to a surgical suture and then sutured on the upper eyelid of a rat, so that inflammatory response is rapidly and continuously initiated. The method is better in modeling effect, simple and convenient to operate, short in period, high in success rate, high in repeatability, low in cost, high in safety and wide in application range.