497results 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.

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.

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.

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.

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 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 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.

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 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 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 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.

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.

The invention relates to the technical field of medical instruments, in particular to an intraocular pressure sensor which comprises an intraocular pressure sensor body and a support connected with the intraocular pressure sensor body. The support is of a plate-shaped structure. According to the intraocular pressure sensor, the requirement for the stability of the position of the intraocular pressure sensor is high in the intraocular pressure detection process based on optical sensing, the support of a plate-shaped structure is adopted, the comfort degree after implantation is guaranteed, meanwhile, the intraocular pressure sensor body is prevented from moving, the stability of the position of the intraocular pressure sensor body is improved, and the intraocular pressure sensor is suitable for popularization and application. Therefore, frequent adjustment of the shooting angle in the detection process can be avoided, the shooting difficulty is reduced, and the definition of the shot image is improved.

Systems, devices and methods are provided that provide assistance in selecting appropriate interventions for treatment of disease and injury to the eye. Systems of the inventive concept provide cloud-based processing and storage of clinical and patient-specific data, which can provide treatment recommendations and projected outcomes to a practitioner using a local device. Systems, devices, and methods can generate interactive physiomechanical models of the eye of a specified individual, which are derived measurements of mechanical properties of structures of the eye. The physiomechanical model is interactive, and can be used to emulate the effects of one or more medical interventions in the eye in order to implement an optimized treatment plan for the individual.

Systems and methods are disclosed for facilitating the evaluation of eye health and vision. The system is a mobile system and comprises at least one diagnostic device for performing a vision diagnostic test, the device being a VR headset; a portable computer communicatively coupled to the at least one diagnostic device, the computer having hardware adapted to guide a patient through the test, to compile test data, and to transmit the test data via a data connection; and a server in communication with the computer via the data connection, the server gathering the test data and presenting test data to a physician so that treatment may be provided to the patient. The at least one diagnostic device may include multiple portable, handheld diagnostic devices.

The invention relates to the technical field of medical instruments, and discloses intraocular pressure measuring equipment which comprises a main body part, a measuring part and a supporting part are arranged on the main body part, a first coil and a second coil are arranged in a measuring shell, and after the first coil is powered on, the first coil generates a magnetic field to push a measuring probe to move and impact eyes; the second coil comprises a measurement mode, a recovery mode and a holding mode; when the second coil is in a measuring mode, the measuring probe which impacts the eye to rebound penetrates through the second coil to generate a changing voltage used for converting intraocular pressure; when the second coil is in the recovery mode, the second coil enables the measuring probe to be far away from the first coil until abutting against the measuring shell is stopped; when the second coil is in the holding mode, the second coil holds the measurement probe in the stop position. The method is used for solving the problem that in the prior art, when the probe is released, the specific speed given by the transmitting coil to the probe does not accord with the actual speed, and the measurement precision is affected.

The present solution relates to a pressure-adjustable test eye for tonometers, in particular for contactless tonometers. The proposed pressure-adjustable test eye for tonometers consists of a base element with a pressure source, at the edge of which base element a film, simulating the cornea, is fastened, the resulting cavity being filled with liquid or gas. According to the invention, the film simulating the cornea has, starting from a central, mechanically excitable region, gradually varying conducting properties for mechanical waves. For simulation of the cornea, a film is used which is self-supporting and has a certain residual stiffness. The pressure-adjustable test eye is intended for tonometers, in particular contactless tonometers, in order to generate the most realistic measurement signals possible, in order to be able to carry out regular function tests and / or calibrations. However, the pressure-adjustable test eye can also be used in elastography or elastometry in order, for example, to enable a pre- and postoperative evaluation of corneas to be carried out.

This invention discloses an eyeball implant. According to this invention, an eyeball implant can be permanently implanted on the eyeball without the hassle of attachment and detachment, and can form a beautiful appearance that is integrated with the pupil without blocking the light-entering aperture.

Obtaining corneal measurements for non-contact tonometry. Systems, devices, and methods for determining intraocular pressure (IOP) of an eye are provided. The system may include a pump configured to generate an air puff and a nozzle configured to direct the air puff along a first axis toward the eye. The system may further include a light source distal to the nozzle and oriented to emit a light beam along a second axis transverse to the first axis toward a first linear optical sensor. A first portion of the light beam illuminates an outer surface of the eye, and a second portion of the light beam passes through a front surface of the eye. The system may further include a first linear optical sensor positioned distal to the nozzle and configured to receive the second portion of the light beam.

The invention relates to the field of electronic medical instruments, in particular to a sensor capable of continuously monitoring internal pressure of tissue based on an LC oscillating circuit. The invention aims to overcome the defects in the background technology, and provides an intrusive LC passive wireless continuous tissue internal pressure monitoring sensor which has the characteristics of convenience in use and accuracy in measurement. According to the technical scheme, the intrusive LC passive wireless continuous pressure sensor is characterized by comprising a base, a probe and a pressure detection circuit; the probe is vertically fixed at the center of the base; the pressure detection circuit comprises a capacitor arranged on the probe and an inductor arranged on the base; the sensor is formed by folding and bonding a flexible circuit board.

A tonometer (100, 200, 300, 400, 900) for measuring properties of an eye (960). The tonometer comprises an execution unit (102, 202, 902) comprising impact means (104, 904) arranged to apply, when the tonometer is in use, an impact on a cornea (962) of the eye; a measuring unit (106, 906) comprising at least one optical sensor (108, 908); and a controller (110, 910) coupled to the execution unit and the measuring unit, wherein the controller is configured, when in use, to operate the execution unit to apply the impact on the cornea of the eye using the impact means; and the at least one optical sensor to perform multiple measurements of a displacement of the cornea caused by the impact during a predetermined time period.

A biosensor includes a periodic crystalline structure first layer, and an amorphous crystalline structure second layer. The first and second layers are formed from a biocompatible silicone having a Young's Modulus E between 0.4 and 2.0 MPa. The biosensor has a pressure dependent NIR resonance peak shift of less than 15 nm over a field of view of 40°, and has an optical pressure sensitivity of between 0.38 and 2.6 nm / mm Hg. The biosensor may be formed by forming a 3D crystalline structure having a periodic amorphous crystalline first layer and an amorphous crystalline second layer. Voids of the 3D crystalline structure are filled with the biocompatible silicone / polydimethylsiloxane a material. The 3D crystalline structure is removed to form an inverse structure having a first volume of an amorphous arrangement of voids and a second volume of a periodic arrangement of voids.

The invention relates to the technical field of medical apparatus and instruments, in particular to an intraoperative viscoelastic agent suction instrument for intraocular lens implantation, which comprises a replacement host, a liquid supply pump, a suction pump and a controller electrically connected with the liquid supply pump and the suction pump, the replacement main machine is further provided with a liquid inlet and a liquid outlet which are communicated with the liquid supply pump, and a suction port and a liquid discharge port which are communicated with the suction pump. An input connector and an output connector are arranged at one end of the handle, a replacement pipe is arranged at the other end of the handle, a liquid adding hole and a suction hole are formed in the free end of the replacement pipe, the liquid adding hole is communicated with the input connector, and the suction hole is communicated with the output connector. By balancing perfusion and suction amounts, intraoperative intraocular pressure fluctuation is avoided, intraoperative intraocular pressure caused by high intraocular pressure or intraocular pressure caused by excessive suction is avoided, and therefore the risk of optic nerve or retina injury is reduced.

The present disclosure provides an apparatus including a lens housing coupled to a lens assembly, a first lens disposed in a first end of the lens housing, a lens holder disposed in a second end of the lens housing, a lens aligner coupled to the lens assembly, and an optical element. The optical element is insertable laterally into the lens assembly to adjust a transverse position of the first lens and the second lens based on a thickness of the optical element to align a first axis of the first lens and the second lens to a second axis of a third lens positioned in the lens assembly for imaging an eye.

To provide an ultrasonic tonometer capable of suitably irradiating a subject eye with ultrasonic waves, and an ultrasonic tonometer control program.SOLUTION: The ultrasonic tonometer for measuring an intraocular pressure of a subject eye by using ultrasonic waves comprises: irradiation means which irradiates the subject eye with ultrasonic waves; detection means which includes an imaging optical system for imaging the anterior eye part of the subject eye and detects an alignment state relative to the subject eye based on the image of the anterior eye part acquired with the imaging optical system; and control means which on the basis of the deviation between an optical axis of the imaging optical system and a sound axis of the irradiation means, corrects alignment information acquired by the detection means.SELECTED DRAWING: Figure 6