CN217138037U - Portable handheld visual field inspection device - Google Patents

Abstract

The utility model relates to the field of portable ophthalmology detection devices, in particular to a portable handheld visual field inspector, which comprises a visual field bin and a handle connected with the outer wall of the visual field bin; only one end of the visual field bin is provided with a bin opening for being attached to the peripheral area of human eyes, and an inner cavity with the caliber gradually increased from the bottom of the visual field bin to the bin opening is formed in the visual field bin; an eye position monitor for capturing the position of eyeballs is arranged in the center of the inner cavity, a plurality of independent switches and alternately flashing lamp beads are arranged on the side wall of the inner cavity of the visual field bin in a matrix mode by taking the eye position monitor as a center, and the brightness of the lamp beads is gradually adjusted from dark to bright in the flashing process; the handle and/or the visual field bin are/is provided with keys for the patient to press when sensing the light rays of the lamp beads; the control unit acquires and records the photosensitive threshold values of the patient on all the lamp beads, so that a visual field layout of the patient is formed.

Description

Portable handheld visual field inspection device

Technical Field

The utility model relates to an ophthalmology detection device field convenient to carry especially relates to a portable handheld field of vision finder.

Background

Standard Automatic Perimetry (SAP) is one of the most common techniques for measuring the perceived visual ability of an object (or observer). For a given eye, it provides a quantitative measure of visual function represented in a two-dimensional spatial field of view map (also known as the field of view, see fig. 1). As a medical imaging system, it has important clinical significance for diagnosing and monitoring a variety of ophthalmic diseases (e.g., glaucoma) and detecting neurological diseases.

The goal of standard automated perimetry is to determine the Perceptual Sensitivity Threshold (PST) for each location of the field of view, i.e., the distance between the two locations. For example, the subject observes a level of brightness of the stimulus 50% of the time (in other words, a probability of 50%). Using a peripheral machine, this can be achieved by a semi-automatic query-response process of providing an adaptive light stimulus (also called light signal) to an object (also called viewer) selecting brightness at different locations of the field of view while fixing the line of sight at the center point of the screen and requiring a button press whenever a stimulus is felt.

The existing ophthalmology visual field examination device generally comprises a perimeter meter and a computer which are independently arranged, the perimeter meter is in communication connection with a host computer of the computer, the perimeter meter is controlled by the host computer, and the host computer can obtain an accurate result after calculating detection data, so that scientific basis is provided for diagnosis of ophthalmology diseases and neurology diseases such as glaucoma, fundus diseases, optic nerve injury and the like. Specifically, reference may be made to the vision examination device for ophthalmology described in chinese patent application No. CN 108937841B, which includes a vision meter and a computer, wherein the computer includes a host and a display, and the vision meter is in communication connection with the host. Therefore, most of the existing visual field inspection devices are large-scale perimeter, and are suitable for fixed-point medical places such as hospitals. At present, large visual field examination devices cannot be equipped in many domestic areas, and even if the devices are equipped in small hospitals, patients in remote mountainous areas are difficult to go to fixed-point medical places for examination; the medical care team can not carry the large visual field examination device when going out for public consultation.

Disclosure of Invention

In order to solve the above problems, an object of the present invention is to provide a portable handheld visual field inspection device, which is small in size and portable; on the other hand, a two-dimensional space visual field layout of the patient is formed, so that the doctor can comprehensively know the visual field function of the patient.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a portable handheld visual field inspection device, characterized by: comprises a visual field bin and a handle connected with the outer wall of the visual field bin; only one end of the visual field bin is provided with a bin opening for being attached to the peripheral area of human eyes, and an inner cavity with the caliber gradually increased from the bottom of the visual field bin to the bin opening is formed in the visual field bin; an eye position monitor for capturing the position of eyeballs is arranged in the center of the inner cavity, a plurality of independent switches and alternately flashing lamp beads are arranged on the side wall of the inner cavity of the visual field bin in a matrix mode by taking the eye position monitor as a center, and the brightness of the lamp beads is gradually adjusted from dark to bright in the flashing process; the handle and/or the visual field bin are/is provided with keys for the patient to press when sensing the light rays of the lamp beads; the control unit acquires and records the photosensitive threshold values of the patient on all the lamp beads, so that a visual field layout of the patient is formed.

The above technical scheme is adopted in the utility model, this technical scheme relates to a portable handheld field of vision finder, and this portable handheld field of vision finder includes field of vision storehouse and handle, has arranged eye position monitor and many independent switches and the lamp pearl of scintillation in turn in the field of vision storehouse, is equipped with the button that supplies the patient to press on handle and/or the field of vision storehouse. When in use, the mouth of the visual field bin in the visual field checker is firstly attached to the peripheral area of the human eyes, so that the eyes to be detected are positioned in the darkroom environment of the visual field bin; opening a visual field checker for detection, and capturing the eyeball position by an eye position monitor in the process to avoid visual field deviation; in the inspection process, a plurality of lamp beads in the visual field bin flicker according to a random sequence, the brightness is gradually increased from dark to bright during the flicker, in the light emitting process of each lamp bead, a patient needs to press a key when sensing the light emitted by the lamp bead, and the control unit records the position of the lamp bead and the photosensitive threshold value which can be sensed by the patient. After all the lamp beads are detected, the control unit can form a two-dimensional space view layout of the patient based on the positions of all the lamp beads, so that a doctor can comprehensively know the view function of the patient and diagnose and monitor various ophthalmic diseases.

In addition, the visual field inspector in the scheme reduces the conventional perimeter in an equal proportion into a cavity with the size of an eye shielding plate, reduces the volume of the perimeter to the maximum extent, is convenient to carry, can diagnose the diseases of the change of the visual field of the eyeground such as glaucoma and the like at any time, and is suitable for carrying and detecting when going out a clinic.

Preferably, each lamp bead can display four colors of white, yellow and basket red; the control unit can control the lamp beads to emit light of one of the colors based on the instruction. In the technical scheme, each lamp bead is required to emit four colors of white-yellow-basket red, the four colors of white-yellow-basket red are common colors in the field of vision detection of ophthalmology, and when a given patient is detected, all the lamp beads need to be adjusted and made to emit light of one color, such as white. The process needs to be determined according to the condition of a patient, and if the patient suffers from red blindness, the color of the lamp bead needs to be adjusted to be white, yellow or blue.

Preferably, a silica gel ring is arranged on the edge of the bin opening of the visual field bin. The technical scheme has the following two effects that on one hand, the silica gel ring is soft, the silica gel ring is attached to the eye region of a human body softly, and the experience is good; on the other hand, the silica gel ring is easy to deform, has high fitting degree and is easier to form a darkroom environment.

Preferably, the visual field cabin is further provided with a voice playing component, and when the eye position monitor detects that the position of the eyeballs deviates, the control unit plays prompt tones through the voice playing component. Therefore, the eye position of the patient can be ensured to be accurate when the patient performs visual field examination, and the visual field range of the patient can be detected only under the condition of correct operation.

Preferably, an operation panel is arranged on the rear end face of the visual field bin and used for sending instructions to the conveying control unit. Medical personnel can operate operating panel, sends the instruction to the control unit to the operation is accomplished and is detected patient's field of vision.

Preferably, the handle is internally provided with a storage battery and a charging interface connected with the storage battery.

Preferably, the handle and/or the visual field chamber are/is also provided with a memory and a data interface connected with the memory.

Drawings

FIG. 1 is a two-dimensional spatial field of view of a patient.

FIG. 2 is a front perspective view of the portable handheld field of view finder.

FIG. 3 is a front schematic view of a portable handheld visual field inspection device.

FIG. 4 is a rear perspective view of the portable handheld field of view finder.

FIG. 5 is a side cross-sectional view of a portable handheld visual field inspection device.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "a plurality" means two or more unless explicitly defined otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

As shown in fig. 2 to 5, the present embodiment relates to a portable handheld visual field inspector, which comprises a visual field chamber 1 and a handle 3 connected to the outer wall of the visual field chamber 1. The visual field bin 1 is provided with the bin mouth 11 that is used for laminating people's eye peripheral region only one end, be provided with silica gel circle 13 on the bin mouth 11 edge of visual field bin 1, have the effect in following two aspects, silica gel circle 13 is softer on the one hand, and it is comparatively soft in human eye region to laminate, experiences. On the other hand, the silica gel ring 13 is easy to deform, has high fitting degree and is easier to form a darkroom environment.

An inner cavity 12 with the caliber gradually increased from the bottom to a cabin opening 11 is formed in the visual field cabin 1, an eye position monitor 5 used for capturing the position of an eyeball is arranged at the center of the inner cavity 12, a voice playing component is further arranged on the visual field cabin 1, and when the eye position monitor 5 detects the position of the eyeball to deviate, a control unit plays a prompt sound through the voice playing component. Therefore, the eye position of the patient can be ensured to be accurate when the patient performs visual field examination, and the visual field range of the patient can be detected only under the condition of correct operation. A specific implementation of the eye monitor 5 is a conventional art in ophthalmic apparatuses, and reference is made to the contents described in korean patent publication No. KR101046677B 1.

The side wall of the inner cavity 12 of the visual field bin 1 is provided with a plurality of independent switches and alternately flashing lamp beads 2 in a matrix manner by taking the eye position monitor 5 as a center, and the brightness of the lamp beads 2 is gradually adjusted from dark to bright in the flashing process. And the handle 3 and/or the visual field bin 1 are/is provided with keys for the patient to press when sensing the light of the lamp beads 2. The control unit learns and records the photosensitive threshold values of all the lamp beads 2 of the patient, so that a visual field layout of the patient is formed.

Above-mentioned technical scheme relates to a portable handheld field of vision finder, and this portable handheld field of vision finder includes field of vision storehouse 1 and handle 3, has arranged eye position monitor 5 and many independent switches and the lamp pearl 2 of scintillation in turn in the field of vision storehouse 1, is equipped with button 4 that supplies the patient to press on handle 3 and/or the field of vision storehouse 1. When in use, the chamber opening 11 of the visual field chamber 1 in the visual field checker is firstly attached to the peripheral area of human eyes, so that the eyes to be detected are positioned in the darkroom environment of the visual field chamber 1. The visual field inspector is opened for detection, and the eye position monitor 5 captures the position of the eyeball in the process, so that the visual field is prevented from being deviated. In the inspection process, the 2 lamp pearls in the field of vision storehouse 1 twinkle according to random order, and luminance is by dark to bright crescent during the scintillation, and in the luminous in-process of 2 lamp pearls, the patient all need press button 4 when feeling the light that this lamp pearl 2 sent, and the control unit then records the position of this lamp pearl 2 and the sensitization threshold value that the patient can experience this moment. After all the lamp beads 2 are detected, the control unit can form a two-dimensional space visual field layout diagram of the patient based on the positions of all the lamp beads 2, similar to the diagram of fig. 1, so that a doctor can comprehensively know the visual field function of the patient and diagnose and monitor various ophthalmic diseases.

In addition, the visual field inspector in the scheme reduces the conventional perimeter in an equal proportion into a cavity with the size of an eye shielding plate, reduces the volume of the perimeter to the maximum extent, is convenient to carry, can diagnose the diseases of the change of the visual field of the eyeground such as glaucoma and the like at any time, and is suitable for carrying and detecting when going out a clinic.

In a further scheme, each lamp bead 2 can display four colors of white, yellow and blue. The control unit can control lamp pearl 2 to emit the light of one of them colour based on the instruction. In the technical scheme, each lamp bead 2 is required to emit four colors of white-yellow-basket red, which are common colors in the field of vision detection of ophthalmology, and when a given patient is detected, all the lamp beads 2 need to be adjusted and made to emit light of one color, such as white. The process needs to be determined according to the condition of the patient, and if the patient suffers from red blindness, the color of the lamp bead 2 needs to be adjusted to be white, yellow or blue.

In addition, an operation panel 8 is arranged on the rear end face of the visual field chamber 1 and used for sending instructions to the conveying control unit. Medical personnel can operate operating panel 8, send the instruction to the control unit to the operation is accomplished and is detected patient's field of vision. The inside battery that is equipped with of handle 3 to and with the interface 6 that charges that the battery is connected. The handle 3 and/or the visual field chamber 1 are also provided with a memory and a data interface connected with the memory. The charging interface 6 and the data interface may be the same interface, which is common knowledge. The back of the handle 3 is provided with a slidable power switch 9, and the opening and closing of the whole instrument can be controlled by the sliding of the power switch 9.

It should be noted that, in the above-mentioned solution, the brightness of the lamp beads 2 is gradually adjusted, the lamp beads 2 flash in a random order, and the lamp beads 2 can emit one color of light, yellow and blue, which are common knowledge in the field of lighting, and the related control programs of the operation panel 8, the memory, the control unit and the voice playing component are common knowledge in the field of computers, and are not described in detail because they are not innovative points of the tubular visual field screener.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although embodiments of the present invention have been shown and described, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that changes, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the principles and spirit of the present invention.

Claims (7)

1. A portable handheld visual field inspection device, characterized by: comprises a visual field chamber (1) and a handle (3) connected with the outer wall of the visual field chamber (1); only one end of the visual field bin (1) is provided with a bin opening (11) used for being attached to the peripheral area of human eyes, and an inner cavity (12) with the caliber gradually increased from the bottom of the visual field bin (1) to the bin opening (11) is built inside the visual field bin (1); an eye position monitor (5) for capturing the position of eyeballs is arranged at the center of the inner cavity (12), a plurality of independent switches and alternately flashing lamp beads (2) are arranged on the side wall of the inner cavity (12) of the visual field bin (1) in a matrix mode by taking the eye position monitor (5) as the center, and the brightness of the lamp beads (2) is gradually adjusted from dark to bright in the flashing process; the handle (3) and/or the visual field bin (1) are/is provided with a key (4) for a patient to press when sensing the light of the lamp beads (2); the control unit knows and records the photosensitive threshold of the patient for all the lamp beads (2), so that a visual field layout of the patient is formed.

2. A portable hand-held visual field inspection device according to claim 1, wherein: each lamp bead (2) can display four colors of white, yellow and basket red; the control unit can control the lamp beads (2) to emit light of one of the colors based on the instruction.

3. A portable hand-held visual field inspection device according to claim 1, wherein: and a silica gel ring (13) is arranged on the edge of the bin opening (11) of the visual field bin (1).

4. A portable hand-held visual field inspection device according to claim 1, wherein: the visual field cabin (1) is further provided with a voice playing component, and when the eye position monitor (5) detects the position of an eyeball to deviate, the control unit plays a prompt tone through the voice playing component.

5. A portable hand-held visual field inspection device according to claim 1, wherein: and an operation panel (8) is arranged on the rear end face of the visual field bin (1) and used for sending instructions to the conveying control unit.

6. A portable hand-held visual field inspection device according to claim 1, wherein: the handle (3) is internally provided with a storage battery and a charging interface (6) connected with the storage battery.

7. A portable hand-held visual field inspection device according to claim 1, wherein: and the handle (3) and/or the visual field bin (1) are/is also provided with a memory and a data interface connected with the memory.

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