45 results about "Ophthalmologic examination" patented technology

1. Name of the product in this design: Ophthalmic Examination Device. 2. Purpose of this design: For use in ophthalmic examination devices. 3. The key design features of this product are the combination of shape and pattern. 4. The image or photograph that best illustrates the key design points: Design 1 3D view. 5. Design 1 is designated as the basic design.

The invention provides an ophthalmic examination auxiliary device, and relates to the technical field of ophthalmic examination, the ophthalmic examination auxiliary device comprises a base, a mounting seat fixedly connected with one side of the base, a support frame arranged on the working surface of the top end of the mounting seat, and an eyelid turning mechanism connected with the support frame through a moving mechanism; a lower jaw supporting plate is arranged on the mounting seat, and the lower jaw supporting plate is positioned on the opposite side of the supporting frame; the support frame is clamped with the forehead support plate; the eyelid turning mechanism comprises oppositely-arranged limiting frames, an adjusting piece penetrating through the limiting frames and an eyelid opener connected with the telescopic end of the adjusting piece. The limiting frame has an inclined radian matched with an eyelid; through the arrangement of the eyelid turning mechanism, the limiting frame and the adjusting piece which are matched with the radian of the eyelid are adopted, multi-point accurate force application can be carried out according to the wrinkle sagging conditions of different positions of the eyes of the old people, so that the eyelid is stably and comprehensively turned over, and a clear and unshielded observation view is provided for slit lamp inspection.

The application provides an objective refraction system and method of refractive state, comprising: a laser light source emitting three beams of blue laser, green laser and infrared laser, an optical beam splitter splitting the three beams into a reference light path and a measurement light path; a plane mirror reflecting the reference light path back to the original path and being received by an interference measurement device; a light adjusting device refracting the measurement light path to realize range measurement of a measurement object, the refracted measurement light path being reflected back to the original path by the measurement object and then being received by the interference measurement device; then, the interference measurement device obtains an interference measurement signal according to the incident measurement light path and the reference light path, a data processing device obtains refractive factor data of the measurement object according to the interference measurement signal, and obtains refractive refraction data of the measurement object according to the refractive factor data. The application can realize the ophthalmic examination that can be completed by multiple devices through one measurement, can quickly understand the real state of the eyeball and judge the myopia condition, and improves the myopia examination efficiency.

The invention discloses a modular integrated rapid ophthalmology screening vehicle and an examination method thereof, and relates to the technical field of ophthalmology examination. The inspection mechanism is mounted on the rear side of the bottom inner wall of the screening vehicle body; the two shading mechanisms are mounted between the top inner wall and the bottom inner wall of the screening vehicle body; through cooperative work of the vision detection module, the fundus imaging module, the intraocular pressure detection module, the slit lamp module and the AI auxiliary diagnosis module, and efficient interconnection between equipment in each module and the host server through USB-C and HDMI dual interfaces with unified specifications, the functional modules can be flexibly increased or decreased according to requirements of different screening scenes; the problems that a traditional whole machine integrated device is complex in structure and large in deployment difficulty are solved, multi-dimensional detection such as refraction detection, fundus imaging and intraocular pressure measurement can be completed through professional devices of all the modules, the screening efficiency and diagnosis accuracy are greatly improved, and the coverage range of ophthalmology screening service is effectively expanded.

1. Name of the product in this design: Reverse Training Device (D3). 2. Purpose of this design: This design is used for ophthalmic examination and vision training. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D rendering 1.

1. Name of the product in this design: Ophthalmic Examination Equipment (Mumu Lingmou). 2. Purpose of this design: This design is intended for ophthalmic examination. 3. The key design features of this product are the combination of shape and pattern. 4. The image or photograph that best illustrates the design's key points: a 3D model.

Optical device, method for calibrating an optical device, in particular data glasses (102), binoculars, a telescope, a microscope, a periscope, virtual reality glasses, mixed reality glasses, cycling glasses, diving goggles, a motorcycle helmet visor, protective goggles, or an ophthalmic examination device, wherein the calibration of the optical device is performed when, in particular, the optical device detects that a case (104) containing the optical device is being closed.

Provided is an ophthalmological device capable of obtaining a brighter and clearer inspection image.　A slit lamp microscope (100) comprises: a background illumination system (60); an imaging unit (50); and a control unit (20). The control unit (20) comprises an inspection image generation unit (21) that generates an inspection image of an inspected eye, on the basis of images captured by the imaging unit (50). The inspection image generation unit (21) has: an image acquisition unit (24) that acquires, from the imaging unit (50), a plurality of images captured through imaging an inspected eye while changing the illumination direction of illumination light with respect to the inspected eye; an image extraction unit (25) that extracts, as a partial image, a portion at which focus is achieved from the plurality of images acquired by the image acquisition unit (24); and an image combination unit (26) that combines a plurality of the partial images extracted by the image extraction unit (25) together to generate an inspection image.

The utility model relates to the technical field of ophthalmic examination, in particular to a clinostatism assist device for ophthalmic examination. According to the technical scheme, the ophthalmic examination clinostatism assist device comprises a control box, a headrest is installed at one end of the control box, a base plate is installed at the end, away from the headrest, of the control box, a rotating shaft is rotationally installed in the control box, a worm is arranged on the rotating shaft, a connecting block is arranged at the bottom end of the headrest, and a connecting rod is arranged on the connecting block. A connecting shaft is inserted into the connecting block, a turbine is arranged at the end, located in the control box, of the connecting shaft, and the rotating shaft is meshed with the turbine of the connecting shaft through a worm so as to drive the connecting shaft to rotate and further drive the headrest connected with the connecting shaft to deflect. The rotating shaft is driven by the hand wheel to rotate, then the worm is driven to be meshed with the turbine, and deflection adjustment of the headrest can be achieved. By means of the design, a doctor can easily adjust the head angle of a patient according to examination requirements, and the examination flexibility and accuracy are improved.

1. The name of the design product: desk type eye muscle training instrument (D4100). 2. The use of the design product: the design product is used for ophthalmic examination and vision training. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1.

The application discloses a kind of multi-purpose portable ophthalmic examination device and method, it is related to medical equipment technical field, the scheme includes box, the inside of the box is equipped with two placing grooves, the inside of the placing groove is placed with eye detection device, the top of the box is hinged to be connected with lid, the inside of the box is sequentially embedded fixedly installed with two operation panels, the inside of the lid is embedded fixedly installed with display screen, two eye detection devices can be stored and fixed in the application, and it is convenient to carry and move, by being provided with display screen, operation panel and eye detection device, when using, eye detection condition can be directly displayed on display screen, manual observation is not needed, to reduce work burden, users can directly control eye detection device by operation panel, the position and angle of slit lamp can also be changed when using, to facilitate eye examination for different patients.

The utility model discloses a head protection device for ophthalmology slit lamp examination. The head protection device comprises a first protection pad, two second protection pads, a constant temperature device and a fixing band. The first protective pad is arc-shaped and is suitable for being attached to the front side of the upper part of the slit lamp inspection frame. The two second protection pads are both of a semicircular cylinder structure, the two second protection pads are vertically connected to the two ends of the first protection pad respectively, sleeving grooves are formed in the rear sides of the two second protection pads, and the second protection pads are arranged on the two sides of the slit lamp inspection frame in a sleeving mode through the sleeving grooves. The constant temperature device is arranged in the first protective pad and is used for heating the first protective pad; and the fixing band is arranged on the rear side of the first protection pad and is used for fixing the first protection pad on the upper part of the slit lamp inspection frame. According to the head protection device for the ophthalmology slit lamp examination, due to the unique protection design, the constant temperature function, the simple installation mode and the wide applicability, a powerful guarantee is provided for the safety of a patient in the ophthalmology examination process, and meanwhile the overall comfort degree and efficiency of the examination are remarkably improved.

The invention discloses a multipurpose ophthalmic examination device for ophthalmology department, which belongs to the technical field of medical auxiliary instruments and comprises a mounting base and a top seat in sliding fit with the mounting base. An arc-shaped groove is formed in the mounting base, a lower jaw adjusting mechanism is arranged in the arc-shaped groove, the lower jaw adjusting mechanism is in sliding fit with the mounting base, an examination left-right adjusting mechanism is arranged on the top base, and the examination left-right adjusting mechanism is in sliding fit with the top base. Two ophthalmic examination adjusting mechanisms are arranged on the examination left-right adjusting mechanism, and the two ophthalmic examination adjusting mechanisms are symmetrically arranged. When ophthalmic examination is carried out, examination blind areas are fully exposed, view shielding is eliminated, patients with different eye anatomical features are adapted, the traction force and direction are controllable, the injury risk is reduced, the traction state is stable, and examination accuracy is guaranteed.

The application provides a corneal effective defocus quantification method and system based on pupil dynamics coupling, and relates to the technical field of ophthalmic examination. The method comprises the following steps: acquiring corneal multi-modal image data of a target object; the corneal multi-modal image data comprises a tangential refractive power map and a corneal height map; constructing a radial distance field based on the corneal multi-modal image data, inputting the radial distance field and the tangential refractive power map into a pre-trained physical perception depth neural network model to obtain a full-defocus ring area mask; extracting a pupil area boundary based on the tangential refractive power map to obtain a pupil area mask; calculating the intersection of the full-defocus ring area mask and the pupil area mask to obtain an intra-pupil effective defocus area mask; mapping the intra-pupil effective defocus area mask to the corneal height map, and calculating the three-dimensional physical surface area and effective defocus dose of the intra-pupil effective defocus area based on a differential geometry curved surface integral algorithm. The method can quantize the effective defocus amount that truly enters the eye and plays a role in myopia control.

This invention belongs to the field of ophthalmic examination technology, specifically referring to an adaptive expansion device for ophthalmic examinations. It includes a support arm assembly, an angle adjustment assembly, a temporary locking assembly, a rotation adjustment assembly, and a limit adjustment assembly. The angle adjustment assembly is located on the support arm assembly, the temporary locking assembly is located within the angle adjustment assembly, and the rotation adjustment assembly is located on the angle adjustment assembly. This invention first unlocks the angle adjustment assembly using the temporary locking assembly, then rotates the unlocked angle adjustment assembly to adjust the angle between the main support arm and the auxiliary support arm. After releasing the rotation adjustment assembly, the temporary locking assembly automatically returns to its temporary locked state under its own elastic force. This achieves the technical objective of completing both unlocking and adjustment processes sequentially through a single-dimensional rotation.

1. The name of the design product: digital AI visual health screening instrument. 2. The use of the design product: for ophthalmic examination. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.

This invention provides a method and system for detecting refractive state in mobile terminals, relating to the field of ophthalmic examination technology. It includes: acquiring a continuous video frame sequence containing the user's eye, performing image enhancement preprocessing to obtain enhanced video frames; inputting each enhanced video frame into a pre-constructed iris landmark detection model to obtain a set of iris contour key point coordinates; extracting landmarks from the left and right edges of the iris from the iris contour key point coordinate set, and calculating the effective horizontal chord diameter of the iris in a single frame; constructing a temporal sliding window, storing the effective horizontal chord diameter of the iris in consecutive single frames within the temporal sliding window, and calculating statistical feature values ​​and fluctuation indices within the temporal sliding window; locking the current statistical feature value when the fluctuation index is less than or equal to a jitter threshold and the number of consecutive frames reaches a locking threshold; calculating the eye-screen distance; and inputting the eye-screen distance into a pre-constructed nonlinear mapping model to obtain refractive state parameters. This method significantly improves the accuracy and stability of refractive power detection in complex environments.

The utility model belongs to the technical field of examination tools, and particularly relates to an ophthalmic examination table which comprises a main placing table, a supporting assembly is installed at the bottom end of the main placing table, and auxiliary examination tables are symmetrically and movably connected to the two ends of the main placing table. A main placement table and auxiliary examination tables are arranged, the two auxiliary placement tables are pulled outwards, at the moment, the auxiliary placement tables are located outside the main placement table, then elastic rings are detached from buckles, bolts are opened to unfold baffles, first electric telescopic rods are opened at the moment, the auxiliary placement tables are lifted to the position horizontal to the main placement table, and then examination is conducted. And when the detection instrument is not used, the auxiliary examination table is reset, and the detection instrument is retracted below the main placement table, so that the effects that the detection instrument is protected while the space is reduced, and the detection instrument is prevented from falling and being damaged due to collision are achieved.

The invention relates to the technical field of medical examination, and discloses an automatic station adjusting method and system for ophthalmologic examination, and the method comprises the steps: collecting a load input signal of a contact interface between a station supporting part and an examined part; separating a load fluctuation component with a frequency between 1 Hz and 5 Hz; determining a load phase lag value based on a first-order derivative of the fluctuation component, correcting phase deviation, and analyzing an elastic restoring force parameter; according to the invention, a load displacement transient cooperative compensation mechanism is established, the delay of a visual image feedback link is eliminated, the response period is enabled to be lower than 10ms, the physiological tremor phase is aligned, the mechanical hysteresis of soft tissue of the detected part is headed, and the dynamic compensation of the soft tissue of the detected part is realized. And the dynamic distance between the interference signal sampling plane and the fundus tissue is maintained.

The ophthalmic examination fixation lamp convenient to adjust comprises a fixing base, a clamping mechanism is arranged on the surface of the fixing base, the clamping mechanism comprises a clamping plate, a fixing plate and a first telescopic spring, an adjusting mechanism is arranged in the middle of the fixing base, and the adjusting mechanism is arranged in the middle of the fixing base. The adjusting mechanism comprises a fixing frame and an LED lamp holder, and a lifting rod is slidably connected into the fixing frame. According to the ophthalmic examination fixation lamp convenient to adjust, clamping plates and fixing plates are connected together through first telescopic springs, the two fixing plates are made to get close to each other by adjusting the clamping plates, a fixing base is fixed to the surface of a headrest of an examination deck chair, an LED lamp holder is conveniently and transversely moved by moving a fixing frame, and a lifting rod slides up and down in the fixing frame; and through the adjusting mechanism, the position of the LED lamp holder can be conveniently adjusted, and the convenience of adjusting the LED lamp holder is improved.

The utility model discloses a modularization ophthalmology examination device, including: machine base, shell, drive mechanism and fundus observation mechanism, according to this utility model, through the movable installation of shell and the design of drive mechanism, shell can move relative to machine base, be convenient to adjust to the position that is suitable for patient. The design of the operating part enables the work of the driving main body to be controlled simply and visually. The fundus observation mechanism integrates a plurality of lenses, a reflector, a camera and an illuminating lamp to form a module capable of being independently machined and assembled, illuminating light rays emitted by the illuminating lamp are emitted out through a light hole after being zoomed through the lenses and reflected by the reflector, and effective observation and imaging are carried out. In addition, the modularized ophthalmic examination device is convenient to upgrade and maintain, each module is allowed to be independently replaced or upgraded according to needs, the whole system does not need to be replaced, and therefore the long-term maintenance cost can be reduced.

The utility model discloses an ophthalmology examination equipment relates to optometry equipment technical field, the ophthalmology examination equipment includes base, mounting shell, optometry subassembly, drive subassembly, control subassembly and sheltering subassembly, the one end of optometry subassembly extends into the accommodation cavity through the opening; the driving assembly is arranged in the accommodating cavity and is in driving connection with the optometry assembly; the control assembly comprises a rocker piece and a control piece, one side of the rocker piece is installed in the containing cavity, the other side of the rocker piece penetrates out of the installation opening, the control piece is arranged in the containing cavity, and the control piece is electrically connected to the rocker piece and the driving assembly; the shielding assembly is detachably installed on the outer periphery of the installation opening, the installation opening can be opened or closed at any time through the shielding assembly, maintenance personnel can conveniently check the specific condition of the rocker piece at any time, the rocker piece can be replaced at any time, and operation is easy and practical.

This ophthalmic device performs an examination of an eye to be examined. The ophthalmic device comprises an irradiation optical system, a sensor, and a control unit. The irradiation optical system irradiates the eye to be examined with irradiation light. The sensor receives reflected light from the eye to be examined, the light being the irradiation light irradiated by the irradiation optical system. The control unit governs control of the ophthalmic device. The sensor is an event-based sensor that detects and outputs, for each pixel, a change exceeding a threshold value of the luminance of the received light. The control unit acquires analysis information indicating at least one of a position, a displacement, a shape, and a tissue state pertaining to the eye to be examined, on the basis of information output by the event-based sensor.

To improve visibility of an attention region of an eye to be examined.SOLUTION: An information processing device for acquiring a tomographic image of an eye to be examined using an interference light obtained by combining a return light from the eye to be examined irradiated with a measurement light and a reference light includes: control means for controlling scanning means for scanning the measurement light in the eye to be examined with a selected field angle when any one of a plurality of field angles including a first field angle and a second field angle narrower than the first field angle is selected as a field angle for acquiring the tomographic image of the eye to be examined; and display control means for displaying, in a display region, a first tomographic image acquired with the first field angle when the first field angle is selected, and displaying a partial image included in a second tomographic image acquired with the second field angle, which is shorter in the length in a depth direction of the eye to be examined than the second tomographic image so that it fits with the display region when the second field angle is selected.SELECTED DRAWING: Figure 8

An image generation apparatus includes an image acquisition unit configured to acquire an ophthalmic examination image, and an output unit configured to input the ophthalmic examination image and at least one contrast time as input data of an image generation model configured to generate a contrast-enhanced image depicting a contrast effect, and thereby provide output of at least one contrast-enhanced image output as output data of the image generation model along with the at least one contrast time.

Provided is an ophthalmic examination device with which it is possible to acquire complex information that is required in a preliminary examination for corrective prescription when determining which of right and left eyes is a dominant eye. An ophthalmic examination device (100) is for performing an examination by projecting visual targets onto each of left and right eyes EL and ER to be examined, and includes a visual target projection system (4) and a control unit (140). The visual target projection system (4) projects, as visual targets, at least a pair of visual targets that are partially different in form or are recognized to be partially different in form. When performing a dominant eye examination by binocular vision, the control unit (140) switches examination conditions corresponding to influencing elements that affect the result of the dominant eye determination and controls various optical systems and visual target presentation according to the examination conditions.

To provide a method for evaluating an individual's visual acuity using a computerized device.SOLUTION: Provided is a method for conducting a visual acuity test on a user, the method including: displaying information to a user using a computerized device; initiating a visual acuity test including a graphical interface into which the user provides input via a touch-sensitive field; determining distance information relating to a measured distance between the device and the user from an image of the user captured by a camera of the device; displaying a predetermined visual target for the user to view; displaying the visual acuity test without a refractive lens assembly; presenting spoken indications relating to the visual acuity test via a speaker; recording an identification content spoken by the user upon viewing the predetermined visual target via a microphone; performing voice recognition for the identification content spoken by the user to generate a converted string corresponding to the spoken identification content; and determining a score for the visual acuity test performed by the user on the basis of the converted string.SELECTED DRAWING: Figure 1

The slit lamp convenient to adjust comprises an installation plate, an operation table is arranged on the rear side of the upper end of the installation plate, a detector is arranged at the upper end of the operation table, and the slit lamp convenient to adjust further comprises a distance adjusting mechanism and a lifting mechanism. The distance adjusting mechanism comprises guide rods and sliding strips, the guide rods in bilateral symmetry are fixedly connected to the interior of the front side of the mounting plate, the sliding strips are slidably connected to the exteriors of the guide rods respectively, a transverse strip is fixedly connected to the upper side between the front ends of the sliding strips at the two ends, and the sliding rods in bilateral symmetry are fixedly connected to the upper end of the transverse strip; a chin rest is slidably connected between the middles of the two sliding rods, and a forehead supporting belt is fixedly connected between the upper ends of the two sliding rods. The lifting mechanism comprises a U-shaped sliding block, a connecting rod and a U-shaped block, when the slit lamp convenient to adjust is used, the distance and height can be automatically adjusted according to different patients, ophthalmic examinations can be better conducted on the different patients, and the flexibility of the slit lamp is improved.

The application relates to the technical field of ophthalmic examination equipment, and discloses a slit lamp microscope for ophthalmic general examination, which comprises a base, a supporting mechanism arranged above the base and an observation mechanism arranged above the supporting mechanism, the supporting mechanism comprises a sliding table which is slidingly connected to the top of the base, and the top of the sliding table is fixedly connected with a supporting seat; the observation mechanism is arranged, for short people, an operator can check the eyes of a patient through the eyepiece, the extension tube and the vertical opening of the periscope, and the clarity can be improved by rotating the rotating shaft to replace different lenses at the replacement groove; for patients with a higher height, when the periscope is in a vertical opening state, the operator rotates the adjusting shell to change the observation direction of the periscope from the lower side to the upper side, so that the eyes of the patient with a higher height can be checked while the line of sight height of the operator is unchanged.