JP2021194391A - Optometric device adapter - Google Patents

Abstract

To provide an optometric device adapter that enables a subject to independently hold the eye of the subject and an inspection section of a small-sized optometric device at appropriate relative positions.SOLUTION: An optometric device adapter 100 according to one embodiment of the present invention is an optometric device adapter 100 to which an optometric device 1 including a photographing optical system 9 and an upper abutment unit 7 keeping distance between the photographing optical system 9 and an examination object eye E to be constant is attached, the optometric device adapter 100 comprises: a tabular adapter body 110 formed in such a manner that one surface thereof is a surface 111 facing the subject H and the other surface is an attachment surface 112 to which the optometric device 1 is freely detachably attached; a notched portion 113 that is provided in the adapter body 110 and causes the photographing optical system 9 and the upper abutment unit 7 of the optometric device 1 be exposed to the side on the subject facing surface 111; an abutting portion 120 provided in the subject facing surface 111 in a protruding manner and abutting on the chin C of the subject H; and gripping portions 130, 140 provided in the adapter body 110 and gripped by the subject H.SELECTED DRAWING: Figure 1

Description

The present invention relates to an optometry device adapter used in combination with an optometry device.

Conventionally, there are a wide variety of optometry devices according to the purpose of optometry and medical examination. As an example, a slit lamp microscope using a slit lamp that projects a slit-shaped illumination light spot onto the eye of a subject is generally used as an inspection instrument that is the basis of an ophthalmic examination.

According to such a slit lamp microscope, it is possible to observe various lesion sites by giving diversity to the method of illuminating the eye to be inspected. That is, by irradiating the subject's eye with light from the light source of the slit lamp while changing the angle, color, and width, the external eye (eyelid, conjunctival, strong membrane) and anterior eye (corner). Abnormalities in the anterior chamber, crystalline lens), anterior vitreous body, and fundus structure can be grasped.

Here, for example, Patent Document 1 discloses a slit lamp microscope capable of acquiring a wide-area image of an eye to be inspected. The slit lamp microscope of Patent Document 1 includes an illumination system and a photographing system, the illumination system includes an illumination focusing mechanism, and the illumination system illuminates the eye to be inspected with the slit light. The illumination focusing mechanism is used to change the focus position of the narrow gap light, and the photographing system plays a role of guiding the return light of the narrow gap light from the eye to be inspected to the image pickup device.

On the other hand, the slit lamp microscope has a hand slit as a portable one, which also enables examination of the external eye portion, the anterior eye portion, the fundus, and the like.

Japanese Unexamined Patent Publication No. 2016-159073

However, in the technique disclosed in Patent Document 1, the slit lamp microscope is a stationary device, and the size and weight of the whole device are large, so that it is not suitable for carrying. In addition, the portable hand slit was developed for ophthalmologists, and has problems such as being difficult to operate, heavy, and expensive, so it can be introduced to medical examinations by non-ophthalmologists or actually used. It has become difficult to do.

In recent years, the number of patients at home is increasing, and there are more than hundreds of local governments that do not have ophthalmologists. There is. For example, anterior ocular examination is indispensable for diagnosing emergency ophthalmic diseases such as acute glaucoma attacks, but even if a hand slit is available at the facility, it is expected that it cannot be used by non-ophthalmologists. Under such circumstances, a small, lightweight, and low-cost portable optometry device that can be easily operated is being developed.

However, although the portable optometry device can be easily operated even by a non-ophthalmologist, it maintains an appropriate relative position between the examination unit of the optometry device and the eye of the subject. It is difficult to perform an inspection operation. In particular, it is difficult for the subject himself / herself to easily operate it alone at home or the like. In addition, it may be desirable for the subject to take a picture by himself as a countermeasure against infection.

The present invention has been made in view of such a problem, and an object thereof is to be used in combination with a small optometry device, in which the subject alone is the subject's eye and the optometry device. It is an object of the present invention to provide an adapter for an optometry device capable of holding an optometry unit in an appropriate relative position.

In order to solve the above problems, the optometry adapter according to one aspect of the present invention is equipped with an optometry device having an abutting unit that keeps the distance between the optometry unit and the optometry unit and the subject's eye constant. An adapter body for a device, which is a plate-shaped adapter body formed with one surface facing the subject facing the subject and the other surface serving as a mounting surface to which the optometry device is detachably attached. A penetrating portion provided on the adapter body that exposes the inspection unit and the contact unit of the optometry device to the subject facing surface side, and a penetrating portion projecting from the adapter body facing the subject facing surface, the subject It is provided with a contact portion that comes into contact with a part of the head of the adapter, and a grip portion that is provided on the adapter body and is gripped by the subject with both hands.

INDUSTRIAL APPLICABILITY According to the present invention, it is possible to provide an adapter for an optometry device capable of a subject alone to hold an eye of a subject and an inspection unit of a small optometry device in an appropriate relative position.

It is a perspective view which shows an example of the optometry apparatus adapter which concerns on 1st Embodiment of this invention, and the optometry apparatus attached to this optometry apparatus adapter. It is a perspective view which shows the optometry apparatus. It is a side view which shows the adapter for the optometry apparatus and the optometry apparatus. It is a perspective view which shows an example of the optometry apparatus adapter which concerns on 2nd Embodiment of this invention, and the optometry apparatus attached to this optometry apparatus adapter. It is a perspective view which shows the use example of the optometry apparatus adapter and the optometry apparatus attached to this optometry apparatus adapter.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

<First Embodiment>
1 and 3 show an optometry device 1 attached to the optometry device adapter 100 and the optometry device adapter 100 according to the first embodiment of the present invention, and FIG. 2 shows and describes the optometry device 1. In FIG. 3, H indicates the subject, L indicates the left hand of the subject H, E indicates the eye to be examined, and C indicates the jaw of the subject H.

An optometry device 1 having a photographing optical system (inspection unit) 9 and an upper contact unit 7, which will be described later, is detachably attached to the optometry device adapter 100. The optometry device 1 has a function as an optometry device 1 in combination with a detachable portable terminal device 50. Further, the optometry device 1 alone may be capable of optometry. Various types of optometry devices 1 can be applied.

The optometry device adapter 100 includes a plate-shaped adapter body 110. The adapter body 110 is formed as a subject facing surface 111 having one surface facing the subject H and a mounting surface 112 to which the optometry device 1 is detachably attached to the other surface. The mounting surface 112 is provided with mounting holes 112a and 112b for fixing the fixing portions 14 and 15 to the adapter main body 110. The mounting holes 112a and 112b have, for example, a female screw structure, and are fixed by screws or the like inserted from the subject facing surface 111. When not in use, the optometry device 1 and the optometry device adapter 100 can be stored separately by removing the screws.

The adapter main body 110 is provided with a notch (penetration portion) 113 that exposes the photographing optical system (inspection portion) 9 and the upper contact unit (contact portion) 7 of the optometry apparatus 1 to the subject facing surface side. Has been done. Openings 114 and 115 are provided at the left and right ends of the adapter body 110. Further, the adapter main body 110 is provided with a plate-shaped contact portion 120 that is projected from the subject facing surface 111 and is in contact with the jaw C of the subject H.

Further, the above-mentioned openings 114 and 115 are attached with gripping portions 130 and 140 that the subject H grips with both hands.

The optometry device 1 includes a flat plate 2. The flat plate 2 is composed of a first flat plate portion 2a and a second flat plate portion 2b extending in a direction perpendicular to the plane of the first flat plate portion 2a above the first flat plate portion 2a. A support plate 3 is fixed to the second flat plate portion 2b, and the lighting unit 4 is arranged on the plane of the support plate 3.

A power supply unit 6 is arranged on the upper right side of the first flat plate portion 2a when viewed from the subject H direction, and a battery is housed in the power supply unit 6. Power is supplied to the light source in the lighting unit 4 from the power supply unit 6. The power supply unit 6 is provided with a light source switch 13 for adjusting the brightness of the illumination. By rotating the light source switch 13, it is possible to increase or decrease the brightness of the illumination.

An upper contact unit 7 is detachably arranged on the plane of the support plate 3 on the upper left side when viewed from the subject H direction. The upper contact unit 7 has a function of maintaining a constant distance between the photographing optical system (inspection unit) 9 and the photographing optical system 9 and the eyes of the subject H. The upper contact unit 7 includes a shaft member 7a attached to the support plate 3 and a rotating roller 7c rotatably arranged around the rotating shaft member 7b at the tip of the shaft member 7a. In the upper contact unit 7, the rotating roller 7c is rotatably held on the upper surface of the tip of the shaft member 7a by the rotating shaft member 7b.

A detachable lower contact unit 8 is arranged below the upper contact unit 7 of the optometry device 1. The lower contact unit 8 is removed from the optometry device adapter 100. The lower contact unit 8 includes a shaft member 8a that is detachably attached to the support plate 5 and a rotating roller 8c that is rotatably arranged around the rotating shaft member 8b at the tip of the shaft member 8a. Consists of. In the lower contact unit 8, the rotating roller 8c is rotatably held by the rotating shaft member 8b on the lower surface of the tip of the shaft member 8a.

An imaging optical system (inspection unit) 9 is arranged on the upper left side of the first flat plate portion 2a when viewed from the subject H side. A holding portion 10 is provided at the left end of the first flat plate portion 2a when viewed from the subject H side, that is, at substantially the center of the left edge of the first flat plate portion 2a. The holding portion 10 includes a substantially L-shaped holding plate 10a and an adjustment holding member 10b for fixing the holding plate 10a to the first flat plate portion 2a. The holding plate 10a is at a position where the first plane abuts on the plane of the first flat plate portion 2a and the second plane extending vertically from the first flat surface projects toward the rear of the first flat plate portion 2a. In relation to this, the adjustment and holding member 10b positions and fixes the position with respect to the first flat plate portion 2a. The adjustment holding member 10b is at a position suitable for holding the portable terminal device 50 while changing the relative position in the slit 10c provided on the first flat surface of the holding plate 10a with respect to the first flat plate portion 2a. To fix the holding plate 10a.

A holding portion 11 is provided at the right end of the first flat plate portion 2a when viewed from the subject H side, that is, at substantially the center of the right edge of the first flat plate portion 2a. The holding portion 11 includes a substantially L-shaped holding plate 11a and an adjustment holding member 11b for fixing the holding plate 11a to the first flat plate portion 2a. The position of the holding plate 11a so that the first plane abuts on the plane of the first flat plate portion 2a and the second plane extending vertically from the first flat surface projects toward the rear of the first flat plate portion 2a. In relation to this, the adjustment and holding member 11b positions and fixes the position with respect to the first flat plate portion 2a. The adjustment holding member 11b is at a position suitable for holding the portable terminal device 50 while changing the relative position in the slit 11c provided on the first flat surface of the holding plate 11a with respect to the first flat plate portion 2a. To fix the holding plate 11a.

A holding portion 12 is provided at the lower end of the first flat plate portion 2a when viewed from the subject H side, that is, at substantially the center of the lower edge of the first flat plate portion 2a. The holding portion 12 includes a substantially L-shaped holding plate 12a and an adjustment holding member 12b for fixing the holding plate 12a to the first flat plate portion 2a. The position of the holding plate 12a so that the first plane abuts on the plane of the first flat plate portion 2a and the second plane extending vertically from the first flat surface projects toward the rear of the first flat plate portion 2a. In relation to this, the adjustment and holding member 12b positions and fixes the position with respect to the first flat plate portion 2a. The adjustment holding member 12b is at a position suitable for holding the portable terminal device 50 while changing the relative position in the slit 12c provided on the first flat surface of the holding plate 12a with respect to the first flat plate portion 2a. To fix the holding plate 12a.

A fixing portion 14 is provided on a flat surface (above the lid) of the power supply portion 6 arranged on the first flat plate portion 2a. A fixing portion 15 is provided on the lower left side of the first flat plate portion 2a when viewed from the subject H side.

When the lighting unit 4 functions as a slit lamp, it has the following configuration. That is, the lighting unit 4 adopts a white LED as a light source, and the light source is connected to the power supply unit 6. The power supply unit 6 supplies power to the light source from an internal battery or the like. A condenser lens (not shown), a first filter unit, a second filter unit, a projection lens, and an illumination prism are arranged in this order on the optical path of the emitted light of the light source. A color filter is provided on the emission surface of the illumination prism so as to be openable and closable.

The light from the white LED, which is a light source, is collected by the condenser lens and guided to the projection lens through the first filter unit and the second filter unit. Then, light is projected onto the illumination prism by the projection lens, the optical path is changed in the forward direction by the illumination prism, and an image is formed at a predetermined focal position. At this time, the diffuser function is realized by installing a filter made of translucent frosted glass in front of the illumination prism. The filter unit may include a first filter unit having a color filter function and a second filter unit having a slit formed therein.

In such a configuration, the mounting position of the upper contact unit 7 is adjusted when actually used. Subsequently, the portable terminal device 50 is attached to the back surface of the first flat plate portion 2a (the side opposite to the surface on which the photographing optical system is arranged), and the holding portions 10 to 12 are adjusted and fixed. At this time, the lens of the camera of the portable terminal device 50 is positioned so as to be positioned on the rear surface of the photographing optical system 9. Then, the fixing portions 14 and 15 are fixed to the adapter main body 110 by using the mounting holes 112a and 112b.

After performing the above positioning, the light source switch 13 is rotated to adjust the light emission intensity of the light source. Then, in a state where the light of the lighting unit 4 is projected onto the eye to be inspected E, the eye to be inspected E is photographed by the camera function of the portable terminal device 50 via the photographing optical system 9. At the time of this photographing, the upper contact unit 7 is in contact with the forehead of the subject H, and the contact portion 120 is in contact with the jaw C of the subject H. Therefore, the subject H can move in the left-right direction while keeping the distance between the photographing optical system 9 and the optometry eye E in the front-rear direction by simply moving the adapter 100A for the optometry device left and right. High-precision shooting can be performed without changing the distance.

Further, since the tip of the upper contact unit 7 is a rotating roller 7c, the optometry adapter 100 can be stably moved to the left and right so as to scan from the contacted state, and the lighting unit 4 is fine. In the case of a slit lamp, the eye can be examined stably, that is, without the focal length being deviated, as in the case of the stationary type. Further, due to the stable movement, even when switching between the left and right optometry, the rotating roller 7c may stably move in the lateral direction, which is convenient.

In this way, the upper abutting unit 7 and the abutting portion 120 abut on the forehead or cheek C of the subject H at two points, so that it is possible to prevent the focal length from fluctuating with higher accuracy. Further, when positioning the optometry device 1, positioning that flexibly corresponds to the forehead of the subject H becomes possible.

As described above, the optometry adapter 100 according to the embodiment of the present invention is used in combination with the optometry device 1, with the rotating roller 7c of the upper contact unit 7 as the forehead and the contact portion 120. Can be adjusted so that the eye to be inspected E is located in front of the photographing optical system 9 by applying the above to the jaw C of the subject H. The eye E to be inspected can be photographed with high accuracy by the camera of the portable terminal device 50 via 9. At this time, since the focal length of the photographing optical system 9 does not fluctuate due to the upper contact unit 7 and the contact portion 120, more accurate shooting becomes possible. Therefore, the subject H himself can easily operate the optometry device 1 independently at home or the like, which can be useful for telemedicine.

Since the rotating roller 7c is made of a resin such as silicon, the subject H does not feel uncomfortable with respect to the contact with the forehead or cheek of the subject H.

<Second Embodiment>
4 and 5 show and explain an optometry device 1 attached to the optometry device adapter 100A and the optometry device adapter 100A according to the second embodiment of the present invention. In FIGS. 4 and 5, the same functional parts as those in FIGS. 1 to 3 are designated by the same reference numerals, and detailed description thereof will be omitted. In FIG. 5, R indicates the right hand.

The optometry device adapter 100A has an adapter body 110. The adapter body 110 has a notch (penetration) that exposes the photographing optical system (inspection unit) 9, the upper contact unit (contact portion) 7, and the lower contact unit 8 of the optometry device 1 to the subject facing surface 111 side. Part) 150 is provided. The notch 150 may be formed longer below the notch 113 described above. The contact portion 120 is not provided.

In the present embodiment, the above-mentioned lower contact unit 8 is attached below the upper contact unit 7 of the optometry device 1.

In such a configuration, when actually used, the mounting positions of the upper contact unit 7 and the lower contact unit 8 are adjusted to set the desired focal length. After performing the above positioning, the eye to be inspected is photographed via the photographing optical system 9 in the same manner as when the above-mentioned optometry device 1 and the adapter 100 for the optometry device are used. At the time of this photographing, the upper contact unit 7 is in contact with the forehead of the subject and the lower contact unit 8 is in contact with the cheek of the subject. The relationship is fixed, and high-precision shooting can be performed without blurring the focal length. Further, since the tips of the upper contact unit 7 and the lower contact unit 8 are rotating rollers 7c and 8c, the subject H simply moves the optometry adapter 100A left and right to bring them into contact with each other. The optometry device can be stably moved to the left and right so as to scan from, and the optometry can be performed in the same manner as in the above-described embodiment.

Although the embodiments of the present invention have been described above, it goes without saying that the present invention is not limited to this and various improvements and changes can be made without departing from the spirit of the present invention. For example, the cutout portion is used as the penetrating portion for exposing the inspection portion and the contact unit, but an opening portion may be used. Further, in the above-described embodiment, the slit lamp microscope is exemplified as the optometry device, but any small optometry device can be applied to various optometry devices. For example, fundus camera, low vision test, intraocular pressure test, reflex, corneal shape analysis, OCT, pupillometer, exophthalmos, ophthalmic echo, corneal curvature meter, topography, ophthalmic mirror, specular, flare meter, refract / keratometer. -A retinometer or the like can be used as an optometry device.

1 ... optometry device, 2 ... flat plate, 2a ... first flat plate portion, 2b ... second flat plate portion, 3 ... support plate, 4 ... lighting unit, 5 ... support plate, 6 ... power supply unit, 7 ... upper contact unit ( Contact part), 7 ... Upper contact unit, 7a ... Shaft member, 7b ... Rotating shaft member, 7c ... Rotating roller, 8 ... Lower contact unit, 8a ... Shaft member, 8b ... Rotating shaft member, 8c ... Rotating roller, 9 ... Imaging optical system (inspection unit), 9 ... Imaging optical system, 10 ... Holding unit, 10a ... Holding plate, 10b ... Adjustment holding member, 10c ... Slit, 11 ... Holding unit, 11a ... Holding plate , 11b ... Adjustment holding member, 11c ... Slit, 12 ... Holding part, 12a ... Holding plate, 12b ... Adjustment holding member, 12c ... Slit, 13 ... Light source switch, 14 ... Fixed part, 15 ... Fixed part, 50 ... Portable Terminal device, 100 ... optometry device adapter, 100A ... optometry device adapter, 110 ... adapter body, 111 ... subject facing surface, 112 ... mounting surface, 112a ... mounting hole, 112b ... mounting hole, 113 ... notch (notch) Penetration), 114 ... opening, 115 ... opening, 120 ... contact, 130 ... grip, 140 ... grip, 150 ... notch (penetration), H ... subject, E ... eye to be inspected, L ... left hand, R ... right hand, C ... jaw.

Claims (2)

An optometry device adapter to which an optometry device having an abutting unit that keeps the distance between the inspection unit and the inspection unit and the subject's eye constant is attached.
A plate-shaped adapter body formed with one surface facing the subject facing the subject and the other surface serving as a mounting surface to which the optometry device is detachably attached.
A penetrating portion provided on the adapter body that exposes the inspection unit and the contact unit of the optometry device to the subject facing surface side, and a penetration portion.
A contact portion that is projected from the surface of the adapter body facing the subject and abuts on a part of the subject's head.
An optometry device unit provided on the adapter body and provided with a grip portion that the subject grips with both hands. The unit for an optometry device according to claim 1, wherein the contact portion abuts on the lower surface of the jaw of the subject.

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