43 results about "Refractive surgery" patented technology

A method of lamellar corneal graft implantation is disclosed herein. The method includes the steps of: (i) forming one or more intrastromal incisions in a cornea of an eye of a patient; (ii) removing a cut portion of the cornea defined by the one or more intrastromal incisions from the eye of the patient; (iii) applying laser energy to a lamellar corneal graft using an excimer laser so as to modify the refractive power of the lamellar corneal graft, the lamellar corneal graft being in the form of a autologous corneal graft or a homologous corneal graft; and (iv) implanting the lamellar corneal graft into the eye of the patient in a location previously occupied by the cut portion of the cornea so as to correct the refractive power of the eye of the patient.

The invention relates to a femtosecond corneal refractive surgery aspiration and black spot early warning method and device and a storage medium. According to the invention, the deep learning model composed of the encoder and the decoder is set, the trained deep learning model is used to output the prediction frame at the current moment, the prediction frame at the current moment is compared with the real frame, and when the prediction frame and the real frame are deviated, it is judged that the real frame deviates from the prediction direction. Therefore, the aspiration loss or the black spots can be judged when the real frame deviates from the prediction direction, the aspiration loss can be detected in time in the whole femtosecond operation process, early warning can be carried out before the aspiration loss occurs, the aspiration loss occurrence rate is reduced, and the safety is improved.

The invention discloses a corneal refraction postoperative management and follow-up visit system based on Internet and AI assistance, and belongs to the technical field of medical health. The system comprises an ophthalmology service interaction platform, an intelligent medical assistant module, a clinical data management module, a follow-up visit management evaluation module and a medical care background management platform, and digital integration of corneal refraction postoperative management and follow-up visit whole processes is realized by constructing a multi-module collaborative architecture; the information barriers between patients and medical staff and between medical links in traditional medical services are broken through, the patients can conveniently obtain detection reports and participate in follow-up visit through the interaction platform, the medical staff efficiently integrate data and distribute tasks by means of the management platform, an AI technology is introduced to construct an intelligent medical assistant module, and the intelligent medical assistant module is provided for medical service. Patient problems are analyzed through a large model technology, personalized suggestions are generated, the vacancy of medical guidance in non-doctor-seeing periods is made up, a task list is automatically generated based on patient conditions, examination is carried out through a remote virtual consulting room, and convenience is brought to patients in different places or unable to move freely.

The invention discloses an astigmatism coaxial decomposition method, system and device for analyzing the astigmatism correction effect of a corneal refractive surgery, and relates to the technical field of corneal refractive surgeries, and the method comprises the steps: obtaining a preoperative subjective optometry result and a postoperative subjective optometry result of a to-be-evaluated user; based on the preoperative subjective optometry result and the postoperative subjective optometry result, the actual correction refractive power decomposed in the axial direction of the expected correction lenticular lens is determined; based on the preoperative subjective optometry result and the postoperative subjective optometry result, the maximum actual correction refractive power decomposed in the direction perpendicular to the axial direction of the expected correction lenticular lens is determined; the surgical actual corrective diopter of the user is determined based on the actual corrective power decomposed in the axial direction of the lenticular and the maximum actual corrective power decomposed perpendicular to the axial direction of the lenticular. According to the astigmatism description method provided by the invention, the efficiency, practicability and comprehensiveness of astigmatism correction effect analysis are improved.

This invention discloses the application of low-concentration topical anesthetics in ophthalmic surgery, relating to the field of low-concentration topical anesthetic application technology, including the following specific application process: confirming the patient's basic surgical condition before administration; selecting anesthetic drugs and optimizing the administration concentration; performing administration according to the specific situation; real-time dynamic monitoring and adjustment of the administration dosage; gradually reducing the drug and transitioning to withdrawal. This invention improves drug safety and patient compliance while ensuring analgesic effects by optimizing anesthetic drug concentration and administration method. Furthermore, by using topical anesthetics at concentrations lower than conventional anesthetics for local administration after ophthalmic surgery, it can effectively relieve postoperative pain, discomfort, and foreign body sensation while significantly reducing toxic effects on corneal epithelial cells, reducing delayed corneal healing, dry eye, and corneal damage. It is effectively applicable to analgesia management after pterygium excision, refractive surgery, and other common ophthalmic surgeries, and has good clinical application value.

1. The name of the design product: computer with refractive ophthalmic procedure service graphical user interface. 2. The use of the design product: for running programs, touch interaction and displaying information. 3. The design points of the design product: the content displayed on the graphical user interface. 4. The picture or photo that best indicates the design points: design 1 front view. 5. The computer is an existing design, omit rear view, left view, right view, top view, bottom view. 6. Design 1 is designated as the basic design. 7. The use of the graphical user interface: for the management of patient status records and data in ophthalmic refractive surgery procedures. The human-computer interaction mode of the graphical user interface: click "message" in design 1 front view to enter design 1 interface change state diagram 1; click the first "XXX" in supplementary interface 1 to enter design 1 interface change state diagram 2, click the lower "lens file" in supplementary interface 2 to enter design 1 interface change state diagram 3; click "message" in design 2 front view to enter design 2 interface change state diagram 1; click the first "XXX" in supplementary interface 1 to enter design 2 interface change state diagram 2, click the lower "lens order" in design 2 interface change state diagram 2 to enter design 2 interface change state diagram 3.

The present application discloses a method and a device for localizing a cutting center in refractive surgery using femtosecond lasers and relates to the field of localizing a cutting center in refractive surgery. The method comprises: capturing eye images of a patient to be operated on in a supine position or...In a seated position under a predetermined illumination level, a first iris image and a first relative position are determined; a second iris image is determined based on the eye image in a supine position; a first rotation angle of the eyeball is determined based on the first and second iris images, and subsequently a second visual axis center and a second relative position of the patient to be operated on are calculated, based on which negative pressure suction is performed, whereby a third iris image is recorded during negative pressure suction if a displacement is detected before negative pressure suction or after aligning the center of a negative pressure suction ring with the second visual axis center; subsequently a third visual axis center is calculated, the center of the negative pressure suction ring is aligned with the third visual axis center, and the third visual axis center is defined as the cutting center for the operation.The present application enables precise localization of the cutting center.

Equipment and methods for refractive surgery, including for keratoplasty. The invention describes equipment and methods for the production and implantation of a lamella of a tissue or material for the purpose of correcting a corneal geometry at maximum precision that is thus improved in relation to the prior art. The invention facilitates restoration of normal corneal geometry together with optical functionality of the cornea which is improved in relation to the prior art. A planning device, a treatment system and a planning method are designed to couple a device coordinate systems of the laser devices involved and characterization devices by application of registration and to uniquely register the supplied measurement data for generating the lamella to be implanted to the device coordinate systems by a specific, defined edge geometry of a blank from which the lamella is produced, and by the lamella, and by additional system and method aids.

The application belongs to the technical field of medical apparatus and discloses a postoperative eye recovery auxiliary device for refractive surgery, which comprises a placing table and a water tank. The top of the water tank is fixedly connected with a mounting plate, and the top of both ends of the mounting plate is fixedly installed with a micro water pump. The micro water pumps at both ends are controlled to work, so that the hot water in the water tank flows to the inside of the heat conduction pipe through the water suction pipe and the conveying pipe, the heat is absorbed and conducted by the heat conduction cover, and the heat is transferred to the eye compressing cover. The eye compressing cover at both ends is applied to the eyes of the user to have a hot compress effect. Meanwhile, the flowing hot water enters the inside of the cavity through the discharge pipe and the water passage, and then returns to the inside of the water tank through the drain port. The temperature sensor can always monitor the water temperature in the water tank, and the water temperature can be kept constant by cooperating with the electric heating disc, so that the water temperature flowing through the heat conduction pipe is not too low or too high, thereby ensuring that the eye compressing cover can continuously have a hot compress effect.

The invention relates to the technical field of medical instruments, in particular to a surface refractive surgery intermittent automatic spraying device which is composed of a spraying assembly and a spraying control instrument, the spraying assembly comprises a spraying piece simulating an eyeball arc shape and a supporting frame, the interior of the spraying piece is hollow to form a liquid cavity, small spraying holes are evenly distributed in the bottom face of the spraying piece, and liquid medicine can be sprayed out in a fine mist shape; the supporting frame can stably support the spraying piece to be over the eyeball, the spraying control instrument comprises a machine box, a liquid tank, an air pump, an air filter, a power source, a controller, a touch display screen and the like, a liquid guide pipe and an air guide pipe in the liquid tank are connected with the spraying assembly and the air pump respectively, and the stop valve is installed on the liquid guide pipe and controlled by the controller. A medical worker starts the air pump and opens the stop valve through the touch control display screen, the air pump pressurizes to press liquid medicine into the spraying assembly through the liquid guide pipe and evenly spray the liquid medicine to eyeballs, the device can accurately control the dosage of the liquid medicine, intermittent spraying is achieved, and the accuracy and safety of an operation are improved.

The invention discloses a personalized aberration correction femtosecond laser refractive surgery system and method based on spatial light modulation, and relates to the technical field of ophthalmology medical equipment.The system comprises a femtosecond laser refractive surgery system body, a control module and a light modulation module; the control module is used for acquiring personalized aberration data to be corrected of the target eye and generating a laser energy spatial distribution model according to the personalized aberration data to be corrected of the target eye; and during light modulation, the light modulation module is connected with the control module and is used for carrying out spatial intensity modulation on a laser beam output by a femtosecond laser source of the femtosecond laser refractive surgery system body according to the laser energy spatial distribution model, and the modulated beam is incident to a target eye. The technical defect that the personalized high-order aberration of the patient cannot be effectively corrected by the existing femtosecond laser refractive lens extraction method can be solved.

The invention discloses a laser pulse string generation assembly and method and an optical system, the laser pulse string generation assembly comprises a beam splitter / combiner, a reflection assembly and a wave plate, and the wave plate is located between the beam splitter / combiner and the reflection assembly; the beam splitter / combiner is used for reflecting a light beam emitted by the femtosecond laser to the reflection assembly, the light beam is reflected by the reflection assembly and then is emitted through the beam splitter / combiner, in the process, a single pulse emitted by the femtosecond laser is split into a plurality of pulses, the beam splitter / combiner is a polarization beam splitting cube, and the wave plate is a 1 / 4 wave plate; the invention provides a laser pulse string generation assembly which generates an interval pulse string in an ultra-short time and integrates the interval pulse string into a femtosecond laser refractive surgery treatment light path, so that the surgery cutting effect is improved by reducing the sensitivity of the machining effect to laser single pulse energy fluctuation.

The present application relates to a method, device, and storage medium for early warning of aspiration and melasma during femtosecond corneal refractive surgery. This application employs a deep learning model consisting of an encoder and a decoder, and utilizes the trained deep learning model to output a predicted frame at the current moment. By comparing the predicted frame with the actual frame at the current moment, the application determines that the actual frame has deviated from the predicted direction when a deviation occurs between the predicted and actual frames. This application then determines that aspiration or melasma has occurred based on the deviation of the actual frame from the predicted direction. This method enables timely detection of aspiration and early warning before aspiration occurs during all-femtosecond corneal refractive surgery, thereby reducing the incidence of aspiration and improving safety.

The invention provides an analysis method, system and equipment based on refractive postoperative intraocular lens degree, and is applied to the technical field of data processing. The method comprises the following steps: performing model construction processing on human eye related data of a target user before and after a refractive operation, a cornea front surface three-dimensional coordinate set of the target user, a target pupil size and postoperative monofocal lens position information to generate an initial human eye model after the refractive operation; the anterior chamber depth of the target user before the refractive surgery is completed is processed, and postoperative single-focus crystalline lens position information is generated; processing the surface radius, curvature radius, thickness and optical characteristic information of the single-focus intraocular lens to generate visual effect information after the target user replaces the single-focus intraocular lens; the eye physiological parameters and the eye using habit parameters of the target user are processed, and eye risk adjustment factors of the target user are generated; and processing the visual effect information and the eye risk adjustment factor to generate a target degree of the single-focus crystal.

1. The name of the product under this design: Marker (Ophthalmic Surgery). 2. Purpose of the product of this design: marker for excimer laser in situ keratomileusis, corneal refractive surgery, and femtosecond laser surgery. 3. The key point of the design of this product lies in its shape. 4. The picture or photo that best illustrates the design points: three-dimensional picture. 5.Omit the top view and bottom view.

This invention belongs to the field of refractive surgery simulation technology and discloses a VR-based immersive simulation system for refractive surgery procedures. It supports patients inputting refractive parameters such as myopia and astigmatism via VR controllers or voice input, while also incorporating biomechanical data such as corneal elastic modulus and thickness distribution. Built-in parameter verification logic ensures accurate input. Utilizing a model that fuses B-spline curves with corneal biomechanical parameters, it can adjust key surgical data such as laser scanning path and microlens thickness in real time based on patient parameters. Through preset personalized plans, patients can switch between and compare the scanning effects of different plans, perceive surgical details adapted to their own eye conditions, and establish an understanding of the targeted nature and safety of the surgery. The VR headset's eye mask integrates a micro-vibration motor, air pump, and heating pad to replicate the pressure sensation during real surgery.

The invention relates to a device and a method for refractive surgery, in particular keratoplasty. The object of the invention is to specify a device and a method for producing and implanting a lamella of tissue or material in order to correct the corneal geometry with the highest precision, in turn improved with respect to the prior art. The object of the correction is in particular to reconstruct the normal corneal geometry with an improved corneal optical function with respect to the prior art. This object is achieved by a planning device (2), a treatment system (1) and a planning method, which are designed to couple the device coordinate systems of the participating laser devices (3, 6, 7) and of the characterization device (4) by means of recordings, and to record the delivered measurement data for generating the lamella (24) to be implanted individually with respect to the device coordinate systems by means of a defined specific edge geometry of the blank (23) and the lamella (24) machined in itself, and further system and method aids.

This invention discloses a method and device for anterior segment Sham elastography. This invention combines micron-level spatial resolution, high cost-effectiveness, and clinical operability. It can obtain quantitative elastic distribution of anterior segment tissues such as the cornea in vivo and in situ, providing reliable biomechanical basis for ophthalmic diagnosis and treatment scenarios such as early screening of keratoconus, refractive surgery planning, and glaucoma risk assessment. Compared with the prior art, the system structure of this invention is simplified, the cost is significantly reduced, and it has higher resolution and achieves truly non-contact measurement.

The utility model relates to the technical field of protective eyeshades, and discloses a protective eyeshade applied to nursing after a refractive operation. The protective eyeshade comprises an eyeshade main body, an atomization device, an atomization switch and a power supply. A flexible cushion layer surrounding the periphery of the eyeshade body is arranged on the side, facing the human eyes, of the eyeshade body, and a ventilation structure capable of enabling the inner side of the eyeshade body to be exchanged with outside air is arranged on the eyeshade body. The atomization device comprises an atomization piece and a liquid storage box for supplying liquid to the atomization piece, and the atomization piece is arranged on the side, facing the human eyes, of the eye patch body; the liquid storage box is detachably connected to the side, back on to the human eyes, of the eye patch body and is higher than the atomization piece. The atomization switch and the power source are arranged on the side, back on to human eyes, of the eye patch body. When the eyes of a patient after a refractive operation are dry, sour and swollen, the eyes can be moistened by using the atomization function of the protective eyeshade disclosed by the utility model, and the discomfort of the eyes of the patient is relieved.

The present disclosure is directed to lenses, devices, methods and / or systems for addressing refractive error. Certain embodiments are directed to changing or controlling the wavefront of the light entering a human eye. The lenses, devices, methods and / or systems can be used for correcting, addressing, mitigating or treating refractive errors and provide excellent vision at distances encompassing far to near without significant ghosting. The refractive error may for example arise from myopia, hyperopia, or presbyopia with or without astigmatism. Certain disclosed embodiments of lenses, devices and / or methods include embodiments that address foveal and / or peripheral vision. Exemplary of lenses in the fields of certain embodiments include contact lenses, corneal onlays, corneal inlays, and lenses for intraocular devices both anterior and posterior chamber, accommodating intraocular lenses, electro-active spectacle lenses and / or refractive surgery.

The invention relates to a device and a method for refractive surgery, in particular for keratoplasty. The object of the invention is to specify a device and a method for producing and implanting a lamella of tissue or material in order to correct the corneal geometry with the highest precision, in turn improved with respect to the prior art. The object of the correction is in particular to reconstruct the normal corneal geometry with an improved corneal optical function with respect to the prior art. This object is achieved by a planning device (2), a treatment system (1) and a planning method, which are designed to couple the device coordinate systems of the participating laser device (3, 6, 7) and of the characterization device (4) by means of a recording and to record the delivered measurement data for generating the lamella (24) to be implanted individually with respect to the device coordinate systems by means of a defined specific edge geometry of the blank (23) and of the lamella (24) and further system and method auxiliary means.

The application relates to an AI binocular vision femtosecond laser positioning healing promoting device against eyeball movement interference, and belongs to the technical field of medical instruments. A positioning system comprises a binocular vision acquisition module, a MEMS attitude sensing module, an AI vision tracking module, a signal linkage module and a double-path data synchronous calibration unit. A healing promoting device comprises a PRP storage module, a precise smearing module, a moisturizing and supplementing module and an intelligent control unit, so as to solve the technical problems that the binocular vision and the MEMS linkage are out of synchronization, the corneal reflection interferes with the precision, the PRP activity maintenance time is short, the smearing is prone to loss, the moisturizing and healing synergy is poor, and the positioning and healing are not intelligently linked in the existing femtosecond laser positioning system and the PRP healing promoting device, and the integrated management of preoperative judgment, intraoperative precise positioning and postoperative intelligent healing of refractive surgery is realized.

The invention discloses a focusing optical lens for laser refractive surgery, which comprises a lens body, a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens are sequentially arranged in the lens body from an object plane to an image plane of an optical axis, the first lens has negative focal power, the object side surface of the first lens is a concave surface, and the image side surface of the first lens is a plane; the second lens has positive focal power, the object side surface of the second lens is a plane, and the image side surface is a convex surface; the third lens has positive focal power, the object side surface is a convex surface, and the image side surface of the third lens is a plane; the fourth lens has positive focal power, the object side surface of the fourth lens is a convex surface, and the image side surface is a plane; the fifth lens has negative focal power, the object side surface of the fifth lens is a concave surface, and the image side surface of the fifth lens is a plane; the sixth lens has positive focal power, the object side surface of the sixth lens is a plane, and the image side surface of the sixth lens is a convex surface. The structure is simple, the layout is reasonable, the uniformity of laser beam energy is improved, the energy density is larger, and focusing light spots are smaller.

The application provides an intraocular lens power analysis method, system and device based on refractive surgery, and applies to the technical field of data processing. The application performs model construction processing on the human eye related data of a target user before and after refractive surgery, the three-dimensional coordinate set of the corneal anterior surface of the target user, the target pupil size and the postoperative monofocal lens position information, generates an initial post-refractive surgery human eye model; processes the anterior chamber depth of the target user before completing the refractive surgery, generates the postoperative monofocal lens position information; processes the surface radius, curvature radius, thickness and optical property information of the monofocal intraocular lens, generates the visual effect information of the target user after replacing the monofocal intraocular lens; processes the eye physiological parameters and eye use habit parameters of the target user, generates the eye risk adjustment factor of the target user; processes the visual effect information and the eye risk adjustment factor, and generates the target power of the monofocal lens.

The present disclosure is directed to lenses, devices, methods and / or systems for addressing refractive error. Certain embodiments are directed to changing or controlling the wavefront of the light entering a human eye. The lenses, devices, methods and / or systems can be used for correcting, addressing, mitigating or treating refractive errors and provide excellent vision at distances encompassing far to near without significant ghosting. The refractive error may for example arise from myopia, hyperopia, or presbyopia with or without astigmatism. Certain disclosed embodiments of lenses, devices and / or methods include embodiments that address foveal and / or peripheral vision. Exemplary of lenses in the fields of certain embodiments include contact lenses, corneal onlays, corneal inlays, and lenses for intraocular devices both anterior and posterior chamber, accommodating intraocular lenses, electro-active spectacle lenses and / or refractive surgery.

The invention relates to the technical field of preoperative screening and postoperative prognosis evaluation of refractive surgery, and discloses a preoperative screening and postoperative prognosis device of refractive surgery based on cornea biomechanical parameters, comprising a base and a shell fixedly mounted on the upper surface of the base; the testing device is arranged in the shell and is used for measuring and analyzing biomechanical parameters of the cornea; the eye movement tracking camera is installed on the testing device and used for tracking the eyeball position of the patient in real time in the detection process; according to the device, cornea biomechanical parameters serve as core detection indexes, high-risk patients with normal forms but biomechanical abnormalities can be accurately recognized, traditional screening blind areas are filled up, and the risk of postoperative complications is reduced; an individualized evaluation report can be generated, a basis is provided for an individualized operation scheme, and precise medical treatment is assisted; and through multiple structures, the detection accuracy is guaranteed, the operation is simplified, the disinfection is standardized, the detection reliability and convenience are considered, and powerful support is provided for screening and prognosis evaluation of refractive surgery.

The application discloses an automatic center positioning and eyeball rotation compensation control system, method and equipment for femtosecond laser refractive surgery, and relates to the field of ophthalmic surgery equipment. The system comprises an image acquisition module, an image processing module, a motion control module, a negative pressure control module and a central processing module. The preoperative sitting visual axis deviation, iris texture and pupil diameter reference value are collected. The light is automatically adjusted during the operation to make the pupil diameter consistent with the pupil diameter reference value, thereby realizing high-precision automatic alignment. After the negative pressure suction ring physically contacts the cornea, the negative pressure is started to ensure stable sealing. After the negative pressure suction, the eyeball rotation angle is automatically calculated through iris feature matching, and the cutting model axis position is adjusted. The application realizes full-process automation, solves the problems of manual operation, large error and low efficiency in the prior art, and significantly improves the visual axis positioning accuracy and surgical safety through active control of physiological conditions (pupil diameter) and strict physical contact logic.

1. The name of the design product: mobile phone with refraction ophthalmic procedure file management graphical user interface. 2. The use of the design product: for running programs, touch interaction and displaying information. 3. The design points of the design product: the content displayed by the graphical user interface. 4. The picture or photo that best indicates the design points: front view. 5. The mobile phone is an existing design, and the rear view, left view, right view, top view and bottom view are omitted. 6. The use of the graphical user interface: for the management of the patient's lens file data in the ophthalmic refractive surgery procedure. The human-computer interaction mode of the graphical user interface: click "lens file" in the front view to enter change state diagram 1; click "2023-10-24 postoperative file card information" in change state diagram 1 to enter change state diagram 2.

The present disclosure is directed to lenses, devices, methods and / or systems for addressing refractive error. Certain embodiments are directed to changing or controlling the wavefront of the light entering a human eye. The lenses, devices, methods and / or systems can be used for correcting, addressing, mitigating or treating refractive errors and provide excellent vision at distances encompassing far to near without significant ghosting. The refractive error may for example arise from myopia, hyperopia, or presbyopia with or without astigmatism. Certain disclosed embodiments of lenses, devices and / or methods include embodiments that address foveal and / or peripheral vision. Exemplary of lenses in the fields of certain embodiments include contact lenses, corneal onlays, corneal inlays, and lenses for intraocular devices both anterior and posterior chamber, accommodating intraocular lenses, electro-active spectacle lenses and / or refractive surgery.