24 results about "Refractive surgery" patented technology

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 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.

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 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 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 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 invention relates to a method for monitoring a function of a device (100) which uses a laser beam (4) for refractive surgery on an eye (2). The method comprises deriving at least one parameter of a preparation and / or execution of a method for refractive surgery, wherein the preparation and / or execution of the method is at least partially carried out by the device for refractive surgery using the laser beam (4). The method further comprises analyzing the function of the device (100) in dependence on the derived parameter of the preparation and / or execution of the method for refractive surgery. Here, the at least one parameter characterizes one or more of the following properties of the preparation and / or execution of the method for refractive surgery: provision of the laser beam (4) by the device (100); action on the eye (2) by means of the device (100); external influence on the preparation and / or execution of the method for refractive surgery from outside the device (100); and possibility of other methods for refractive surgery on the eye (2) by action of the laser beam (4) on the eye (2). The invention further relates to a control unit (14) and a device (100) for refractive surgery on an eye (2).

A method for centering a contact glass relative to a patient's eye includes a) providing a fixation light through a contact glass to align the patient's eye by fixating on the fixation light; b) detecting an image of light pattern that is imaged on the eye's surface; c) presenting the image over the eye with the contact glass with overlaying of virtual markings, wherein a first marking identifies the central axis of the contact glass and a second marking identifies a reference marking, which is derived from the image of the light pattern as lying on the central axis of the contact glass; d) laterally positioning the contact glass such that a distance between the markings is minimized; and e) establishing the position of the eye at which the second marking is located when the markings adopt the minimized distance and registering the position of the vertex.

The invention belongs to the technical field of ophthalmology detection equipment, and relates to ophthalmology detection equipment integrating biological measurement, wavefront refraction and corneal topography and a measurement method. The device is based on a unified optical path structure and a system control platform. An ophthalmology biological measurement system used for obtaining longitudinal and transverse biological measurement parameters of human eyes, a Shack-Hartmann wavefront light spot array imaging system used for collecting refraction information of the human eyes and a Placido disc-based corneal topographic map imaging system used for analyzing morphological information of the cornea surface are integrated on the same detection platform. The corneal topographic map imaging system based on the Placido disc is optically connected with the polarization beam splitting cube through a plano-convex lens, a transmission light path of the polarization beam splitting cube is connected with the Shack-Hartmann wavefront imaging system, and a reflection light path of the polarization beam splitting cube is connected with the biological measurement system. Through optical path multiplexing and integrated calibration control of various ophthalmology detection modules, alignment errors and operation complexity caused by repeated switching among multiple devices are reduced, the detection efficiency and the consistency among different parameters are improved, and the system is suitable for clinical application such as refractive state evaluation, preoperative examination of refractive surgery and cataract surgery and the like.

The present invention relates to a method for centering a contact lens (16) relative to a patient's eye (12), the method comprising: a) providing a fixed light (20) through the contact lens (16) such that the patient's eye (12) is aligned relative to the contact lens (16) by gazing at the fixed light (20); b) detecting a mapping of a light pattern (24) provided by a light source having a fixed positional relationship relative to the contact lens, wherein the mapping of the light pattern (24) is performed via reflection at a surface of the eye (12); c) displaying, superimposed with virtual markers (26), the mapping of the light pattern (24) through the eye (12) via the contact lens (16), wherein the first of the virtual markers (26, 26a, 26b) The markings make the central axis (200) of the contact lens (16) identifiable, and the second marking of the virtual markings (26, 26a, 26b) makes the reference marking identifiable, the reference marking being derived from a mapping of a light pattern located on the central axis of the contact lens (16); d) the contact lens (16) is laterally positioned relative to the eye (12) such that the distance between the first marking and the second marking is minimized; and e) a location of the eye (12) is determined as the position of the vertex (22) of the eye (12) and the position of the vertex (22) is recorded according to the features of the eye (12) identifiable in the mapping of the eye (12), the second marking being located at the location when the first marking and the second marking occupy the minimum distance between them. The invention also relates to a refractive surgery laser system (10).

This invention discloses a corneal biomechanical assessment system and method based on physiological regulation and endogenous stimulation, comprising: a regulation signal generation system for providing quantitative gradient regulation stimulation to the human eye to induce a physiological regulation response, thereby generating endogenous micro-deformation loads on the cornea; a regulation response monitoring system for real-time monitoring and confirmation of the stability of the human eye's regulation state; an anterior segment optical coherence tomography system for acquiring high-resolution three-dimensional structural images of the cornea under different regulation stimulation states when the regulation state is stable; and a control computer, which has image processing and mechanical inversion algorithm modules deployed within it. This invention achieves for the first time accurate assessment of the true biomechanical properties of the cornea in vivo, non-invasive, and under physiological conditions, providing a novel quantitative tool for the ultra-early diagnosis of corneal ectasia and the risk assessment of refractive surgery.

The invention discloses a femtosecond laser ophthalmological treatment system based on XYZ three-dimensional optical scanning, and belongs to the technical field of laser refractive surgical treatment, and the femtosecond laser ophthalmological treatment system comprises a femtosecond laser unit which is used for transmitting a femtosecond pulse laser beam; the Z scanning unit is used for receiving the femtosecond pulse laser beam and outputting a Z-axis scanning beam; the XY scanning unit is used for receiving the Z-axis scanning light beam and outputting XYZ three-axis scanning light beams; the Z scanning unit comprises a voice coil motor, an electromagnetic actuator and a reflector; the voice coil motor and the electromagnetic actuator move to drive the reflector to translate in the Z-axis direction, and the reflector translates in the Z-axis direction to achieve scanning of the laser focus in the depth direction of the cornea tissue. The Z scanning unit adopts the mode that a voice coil motor and an electromagnetic actuator are combined to drive a reflector to move, the requirements for large stroke and quick response of the reflector can be met, scanning of a more complex curved surface is achieved, and the problem that high-order aberration cannot be corrected in a full femtosecond laser ophthalmological treatment operation is solved.