661results about "Tonometers" patented technology

The invention discloses a visual training system and a visual training method, and relates to the technical field of visual training, the visual training system comprises a data acquisition module, an intelligent control module, a visual training module and a data management module; wherein the data acquisition module is used for acquiring initial visual data of a user; the intelligent control module is used for generating a training scheme according to the initial visual data, dynamically adjusting the training scheme according to the real-time training data, and generating and sending a control signal to the visual training module according to the training scheme; the visual training module is used for performing visual training according to the control signal and outputting training data; the data management module is used for storing training data and generating and outputting a visual training report according to all the training data of the user; the visual training report comprises a training progress curve and a vision change curve of the user. According to the invention, an intelligent visual training method can be provided to improve the visual training effect.

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 wireless passive resonance sensor and contact lens for intraocular pressure monitoring comprises a contact lens body which is used for packaging a sensor assembly and serves as a substrate of the sensor. The first spiral inductor is arranged in the contact lens body; the middle elastic dielectric layer covers the first spiral inductor and is used for forming a deformable dielectric medium; the second spiral inductor is arranged on the middle-layer elastic dielectric layer, is opposite to the first spiral inductor and forms an inductor assembly with the first spiral inductor; wherein the first spiral inductor, the middle elastic dielectric layer and the second spiral inductor jointly form a capacitor and equivalently form a serial L-C-L resonant circuit, and the change of intraocular pressure is responded through the change of resonant frequency of the resonant circuit, so that passive wireless monitoring is realized. The design optimizes the preparation process, reduces the cost, improves the signal stability, is suitable for 24-hour continuous monitoring, and provides a powerful tool for early diagnosis and intervention of glaucoma.

A smart contact lens includes a lens body including a first lens surface in contact with an eye and a second lens surface positioned opposite the first lens surface, and an antenna disposed between the first lens surface and the second lens surface and configured to form a closed loop. The antenna may include an antenna ring forming a shape of a ring as a whole; and an antenna buffer bent and extended from the antenna ring in a diameter direction of the antenna ring.

The invention discloses a small vision detection device for eye examination, and particularly relates to the technical field of vision detection devices.The small vision detection device comprises a device bottom plate, a vision detection mechanism is arranged at the top of the device bottom plate and comprises a first moving plate, and the first moving plate is arranged at the top of the device bottom plate; the top of the first moving plate is fixedly connected with a moving mounting plate, and a display screen is mounted on the front side of the moving mounting plate. By arranging the vision detection mechanism and the adjusting mechanism, the comprehensiveness of vision detection is improved, the vision definition is detected, the type and degree of refractive errors such as myopia, hyperopia and astigmatism can be accurately diagnosed through a diopter test, whether a vision problem exists or not is determined, and the vision detection accuracy is improved. Meanwhile, some eye diseases possibly influencing vision can be indirectly found through intraocular pressure testing, retina injury and vision loss caused by too high intraocular pressure can be prevented by monitoring changes of the intraocular pressure, the examination effect is good, and vision detection is more comprehensive.

The invention relates to a handheld aesthesiometer, comprising a gas lung connected with intermediation from first valve means to a source of gas and comprising an expandable cavity intended to house a volume of gas in a loading phase of the aesthesiometer; an outlet nozzle connected to the gas lung with intermediation from second valve means and suitable for directing a puff of the volume of the gas housed in the gas lung in a firing phase of the aesthesiometer; and a mechanism to ensure in the aforementioned firing phase of the aesthesiometer the release of the puff of the volume of gas contained in the gas lung in the direction of the outlet nozzle by means of a controlled contraction of the expandable cavity of the gas lung in order to ensure a substantially constant outlet pressure.

Configurations are disclosed for a health system to be used in various healthcare applications, e.g., for patient diagnostics, monitoring, and / or therapy. The health system may comprise a light generation module to transmit light or an image to a user, one or more sensors to detect a physiological parameter of the user's body, including their eyes, and processing circuitry to analyze an input received in response to the presented images to determine one or more health conditions or defects.

A system for measuring intraocular pressure (IOP). The system includes a tonometer head configured to measure IOP in a posterior chamber and a vitreous cavity of an eye. The system includes an optical gauge configured to measure corneal data of the eye. The system includes a compression arm-spread angle gauge configured to measure a dilation angle of compression arms. The system includes a processor configured to determine geometric parameters of the eye based on the measured corneal data and dilation angle, calculate physical parameters of a sclera of the eye based on the determined geometric parameters, and adjust the measured IOP based on the calculated physical parameters of the sclera.

Apparatus include a particle array configured to propagate an incident solitary wave to an eye, a housing configured to support the particle array, and a sensor coupled to the particle array and configured to detect a return solitary wave propagating along the particle array from the eye. Methods include directing an incident solitary wave along a solitary wave particle array coupled to an eye and detecting a return solitary wave propagating along the solitary wave particle array from the eye. Methods also include estimating intraocular pressure for the eye by comparing solitary wave data to a relationship between a time of return solitary wave time of flight and an intraocular pressure.

To provide a favorable apparatus to adjust the fluid pressure applied to left and right cavities located over left and right eyes of a patient.SOLUTION: An apparatus can include a left cover, sized and shaped to fit over a left eye of a patient to define a left cavity between the left cover and an anterior surface of the left eye, and a right cover, sized and shaped to fit over a right eye of the patient to define a right cavity between the right cover and an anterior surface of the right eye. The apparatus can include a left pressure source to apply a left working fluid to the left cavity, the left pressure source capable of generating a left cavity pressure including a left negative gauge pressure, and a right pressure source to apply a right working fluid to the right cavity, the right pressure source capable of generating a right cavity pressure including a right negative gauge pressure. The left pressure source can be configured to generate a left cavity pressure independently of the right pressure source, and the right pressure source can be configured to generate a right cavity pressure independently of the left pressure source.SELECTED DRAWING: Figure 6

A method of detecting presence or absence of a magnetic measurement probe at a measurement launch position in an electromagnetic coil of an ophthalmic instrument includes applying a temporary current pulse to the electromagnetic coil, detecting a counter-electromotive force voltage spike induced in the electromagnetic coil by the current pulse, evaluating a decay behavior of the counter-electromotive force voltage spike, and correlating the decay behavior of the counter-electromotive force voltage spike to presence or absence of the measurement probe at the measurement launch position.

The invention belongs to the technical field of micro electro mechanical systems, and particularly relates to a non-contact type intraocular pressure visual calibration method, which comprises the following steps of: by virtue of a human eye simplified AI model and an intraocular pressure deformation quantity detection device, combining an MEMS (Micro Electro Mechanical System) technology and a visual analysis theory, carrying out real-time and dynamic simulation on the human eye pressure, and carrying out data acquisition by an optical or image sensor; therefore, accurate monitoring of cornea deformation is realized, a more accurate intraocular pressure evaluation means is provided, and effective verification of the non-contact tonometer is realized. Compared with the prior art, the system has the beneficial effects that data acquisition is carried out by means of an optical sensor or an image sensor and the like, accurate monitoring of cornea deformation can be realized, an integration technology is adopted, cornea deformation quantity calculation and an analysis algorithm are integrated in the MEMS sensor, accurate monitoring of human cornea pressure can be realized, and the system is suitable for popularization and application. And dynamic monitoring can be realized.

Disclosed is an apparatus for measuring property of an eye. The apparatus has an elongated magnetic probe having a probe head, wherein the probe head has an ultrasonic sensor, a driver coil arranged partially to surround the elongated magnetic probe; and a controller configured to, when in use, selectively energize the driver coil to create a magnetic force to initiate movement of the elongated magnetic probe to contact the probe head with a surface of the eye The ultrasonic sensor in the probe head is configured to send an ultrasonic pulse upon contacting the surface of the eye; measure, using the ultrasonic sensor, time taken to receive at least one reflection of plurality of reflections of the ultrasonic pulse, and calculate the property of the eye using value of the time taken to receive at least one reflection of the ultrasonic pulse.

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 is related to a system and method for measuring intraocular pressure using the image sequences of human eyes, and analyzing the blood flow characteristics within iris and sclera and relating them with intraocular pressure (IOP) value.

The invention discloses a dioptric scleroderma cataract dynamic intraocular pressure stable control ultrasonic emulsification system adaptive to a dual-channel operation, which comprises a host control unit, an ultrasonic emulsification handle, a perfusion and suction system, an intraocular pressure monitoring unit, a pressure balance module and a scleroderma fragmentation module, through cooperation of the intraocular pressure control module and the two-way operation type adaptive control module, a high-precision filling valve and a closed-loop suction pump are synchronously adjusted in real time according to anterior chamber built-in and external monitoring fusion data, and intraoperative intraocular pressure fluctuation is controlled within + / -2 mmHg; through pulse modulation and a self-adaptive negative pressure curve of the hardcore fragmentation enhancement module, the stability of the anterior chamber is ensured while the hardcore fragmentation efficiency is improved; fluid dynamics and energy parameters can be automatically optimized according to conventional incisions or micro incisions; according to the system, the anterior chamber stability problem in the high-difficulty cataract surgery is solved.

The present invention discloses a fully wireless ocular surface pressure monitoring system based on a multi-frequency phase-shift decoupling self-calibration algorithm, relating to the technical field of intelligent ophthalmic detection. The system comprises a wearable three-layer contact lens, wherein the outer layer is embedded with a capacitive eyelid pressure sensor and a first spiral coil, and the inner layer is embedded with a piezoresistive intraocular pressure sensor and a second spiral coil, which are respectively tuned to different center frequencies to modulate pressure changes into radio frequency signals. Externally powered receiving glasses or eye masks comprise a multi-frequency transmitting coil, a rectifier circuit and a receiving coil, which supply energy to the sensing structure in the contact lens and sense and obtain a composite signal formed by spatial superposition, which is transmitted to a processing circuit and then sent to a mobile computing terminal. The terminal performs multi-frequency decoupling, sparse matrix separation and temporal self-calibration processing to generate calibration curves of eyelid pressure and intraocular pressure, thereby realizing real-time perception of dual parameters in the eyes-closed state. The system has the advantages of compact structure, high signal separation accuracy and high degree of wirelessness.

To reduce impact from a retinal vessel on analysis of a choroidal vessel.SOLUTION: A method for processing an image includes a step of enhancing a choroidal vessel in a first fundus image in which the choroidal vessel is relatively made to be conspicuous by reading image data of the first fundus image (R color fundus image) and a second fundus image (G color fundus image), extracting a retinal vessel from the second fundus image, removing a retinal vessel from the first fundus image, thereby acquiring a choroidal vessel image in which the choroidal vessel is made to be conspicuous.SELECTED DRAWING: Figure 5

The invention relates to a single-coil excited medical springback tonometer, which belongs to the technical field of medical instruments, is used for measuring intraocular pressure parameters of a patient and comprises a shell, a probe assembly, a forehead support assembly, a central processing unit and a display screen, the probe assembly comprises a probe, a probe base, a cartridge shell, two head coils and a tail coil; the head coil and the tail coil realize magnetization of the tail part of the probe, popping up the probe, pulling back the probe and collecting signals based on an electromagnetic induction principle; the probe pops up and rebounds after making contact with the eyeballs, the change of the speed of the probe causes the change of electric signals of the head coil and the tail coil, and electric signal parameters are converted into intraocular pressure parameters by detecting the change of the electric signals of the head coil and the tail coil and processing the signals. The problems that an existing tonometer needs to anesthetize a patient and is complex in operation are solved, operation is easy, measurement is faster, and cost is lower.

The invention relates to the field of medical health, and aims to provide an intraocular pressure measuring device and a measuring method so as to reduce the operation difficulty of a user and improve the measuring accuracy. According to the technical scheme, the intraocular pressure measuring device is characterized by comprising a telescope barrel with an eyeshade, a springback type pressure measuring module arranged in the telescope barrel, a position adjusting module connected with the telescope barrel and the springback type pressure measuring module, and a controller electrically connected with the position adjusting module and the springback type pressure measuring module.

A glaucoma treatment apparatus including an imaging device capable of imaging the anterior segment of the eye, a treatment laser, an algorithm programmed to determine a location and a cross sectional area of a treatment based on a customized anatomy of the anterior segment of the eye including the trabecular meshwork (TM), the Schlemm's Canal (SC) and collector channels (CCS), obtained from pre-operative images of the anterior segment of the eye, a pre-operative intraocular pressure (IOP) level and a target IOP reduction as an inputs, and a processor configured to actuate the apparatus to create an outflow channel with a cross-sectional area and location or multiple outflow channels with multiple cross-sectional areas and locations from the anterior chamber (AC) to the SC across the TM, as determined by the algorithm to achieve the target intraocular pressure (IOP) reduction. Also disclosed is a method of reducing intraocular pressure in an eye.

To provide an ophthalmologic apparatus capable of easily setting an output destination for outputting a result of the measurement of an eye to be examined.SOLUTION: An ophthalmologic apparatus for examining an eye to be examined can be connected to a first output part for outputting an examination result of the eye to be examined and a second output part different from the first output part for outputting an examination result of the eye to be examined. The ophthalmologic apparatus includes: a first operation part for outputting an examination result of the eye to be examined to the first output part, which is a preset output destination; a second operation part for at least selecting the second output part different from the first output part as an output destination of an examination result of the eye to be examined; and a control part for displaying a selection screen for selecting an output destination of the examination result on an examination screen for acquiring the examination result on the basis of an operation signal from the second operation part, and transmitting an output signal to the second output part selected using the selection screen.SELECTED DRAWING: Figure 1

The utility model discloses a wearable intraocular pressure measuring device, relates to medical instrument technical field, including intraocular pressure instrument, fixed frame, connecting band and elastic band, the fixed frame is provided with the through-hole, the one end of two fixed frame that is not provided with the through-hole is connected through the connecting band, the one side of fixed frame that is provided with the through-hole is set as the arc surface, the elastic band is provided with the through-hole. The other end of the fixing frame is rotationally connected with one end of the elastic band, a locking unit is installed on the plane of the side, away from the arc face, of the fixing frame, and the intraocular pressure instrument is installed on the fixing frame through the locking unit. The defects that an existing household portable intraocular pressure instrument measures in a handheld mode, however, the intraocular pressure instrument shakes easily due to the fact that the human body cannot keep still easily, and the measurement result is affected are overcome.

The invention relates to the technical field of intraocular pressure measurement, and aims to solve the problems that a contact type intraocular pressure measuring head of an existing intraocular pressure meter is in direct contact with a cornea, the risk of corneal epithelium injury and infection exists, the measurement result is influenced by the thickness and curvature of the cornea, the requirement on an operator is high, the cooperation of a subject is needed, and the process is tedious. The invention provides a portable non-corneal contact intraocular pressure measuring device and method.The portable non-corneal contact intraocular pressure measuring device comprises a detection mechanism assembly, a shell, a control system circuit and a fixing band, the device is fixed to the head of a subject through the fixing band, and the subject receives measurement when the eyes are closed; the push rod and the strain gauge are used for completing intraocular pressure measurement by making contact with the eyelids rather than directly making contact with the surfaces of eyeballs, measurement data of the intraocular pressure are obtained through signal changes generated by deformation of the strain gauge covering the surface of the flexible film, the problem that a detection result is inaccurate due to blinking of a subject is solved, and operation is easy.

The invention belongs to the technical field of control systems, and particularly relates to a control system based on combination of dynamic focal length adjustment and vision correction, which comprises a bearing plate and a parameter configuration and feedback module, the two sides of the top of the bearing plate are rotationally connected with lens groups, and the parameter configuration and feedback module is used for collecting user information and initial matching training core parameters and sending the initial matching training core parameters; continuously receiving multi-dimensional real-time feedback, and iteratively optimizing parameters based on the feedback; the dynamic training content generation module is used for generating dynamic 2D and 3D contents and interactive games of adaptive set and adjustment training according to the training parameters optimized by the parameter configuration and feedback module; on the basis, through an adjusting and training mechanism combining hardware and software, personalized adaptation to vision requirements of different users is achieved, medical risks and high cost of laser surgery are avoided, and the problems that traditional glasses and contact lenses are limited in adaptability and inconvenient to use in daily life are solved.

The invention relates to a medical springback type tonometer, and belongs to the technical field of medical instruments, the medical springback type tonometer comprises a shell, a probe assembly, a central signal processing unit and an interactive display unit, the shell is used for providing body protection and support for the medical springback type tonometer; the probe assembly is used for popping up the probe and enabling the probe to be in contact with a measurement target, and enabling the rear part of the probe to rebound into a measurement cavity of the tonometer by virtue of the opposite action of the measurement target; the central signal processing unit is used for collecting and processing signals and detecting, receiving and processing voltage changes on the head coil and the tail coil so as to calculate intraocular pressure of a measurement target. And the interactive display unit is used for displaying the working state of the medical springback type tonometer and the intraocular pressure data calculated by the central processing unit, and receiving a control signal input from the outside. The problems that an existing tonometer needs to anesthetize a patient and is complex in operation are solved, operation is easy, measurement is faster, and cost is lower.

Systems and methods are disclosed to inspect a body part or biological specimen includes capturing an image using a mobile device camera; extracting features of the body part; and applying a deep learning neural network for identification.

The invention relates to the technical field of intraocular pressure measurement, and discloses an artificial eyeball and an intraocular pressure monitoring simulation platform and method. The method comprises the following steps: controlling a water pressure regulator to regulate water pressure in a water injection pipeline and an artificial eyeball according to an intraocular pressure data model; a pressure sensor in the artificial eyeball senses and obtains a pressure electric signal in the artificial eyeball in real time; the pressure electric signal is transmitted to a transmitting coil through a signal wire, and the transmitting coil transmits the pressure electric signal to a receiving coil outside the artificial eyeball through mutual inductance; the receiving coil and the transmitting coil are in mutual inductance communication to receive and obtain a pressure electric signal, and the signal acquisition device acquires the pressure electric signal of the receiving coil to obtain an intraocular pressure measurement value; the actual intraocular pressure value is obtained by conducting signal collection on the water pressure sensor. By applying the system, the function of simulating the adjustable aqueous humor pressure and the blinking action can be achieved, high integration and intelligence are achieved, and accurate control and real-time monitoring of the change of the internal pressure of the simulated eyeball can be achieved.

The invention discloses an LC resonant intraocular pressure monitoring sensor and a preparation method thereof, and belongs to the technical field of flexible sensing. The preparation method comprises the following steps: preparing a P (VDF-TrFE) thin film with a microstructure as a dielectric layer by using a reverse molding method, then spraying MXene on the thin film by using a mask plate to prepare a patterned capacitor, preparing an inductance coil made of an aluminum foil material by using laser marking, and obtaining the MXene-based intraocular pressure sensor by using hot-pressing packaging. According to the preparation method disclosed by the invention, MXene is used as an electrode material of the sensor, and a microstructure of the dielectric layer is adopted, so that the sensor has excellent sensitivity; the preparation method is simple and has batch preparation feasibility.

The invention discloses an intelligent bed control method, device and equipment and a storage medium. According to the intelligent bed control method, the intelligent bed is controlled to adjust the posture of the bed body based on the target eye yoga content selected by the service object so as to assist the service object in executing the target eye yoga content; obtaining intraocular pressure monitoring data collected by intraocular pressure monitoring equipment in real time; and after the target eye yoga content is completed, controlling the intelligent bed to adjust the posture of the bed body according to the intraocular pressure monitoring data. According to the intelligent bed control method, the intelligent bed is controlled to adjust the posture of the bed body based on the target eye yoga content, a bed body auxiliary function for eye relaxation is provided for the service object, and the service object can be helped to better complete the body type so as to effectively relieve eye fatigue; after the target eye yoga content is completed, the intelligent bed is controlled to adjust the posture of the bed body according to the intraocular pressure monitoring data, the service object is further helped to be adjusted to the comfortable prone posture suitable for the eye health condition, and therefore the more continuous and more effective eye relaxing effect is achieved.