WO2023080871A1 - Antifog apparatus for ophthalmic lenses - Google Patents

Antifog apparatus for ophthalmic lenses Download PDF

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Publication number
WO2023080871A1
WO2023080871A1 PCT/TR2022/050903 TR2022050903W WO2023080871A1 WO 2023080871 A1 WO2023080871 A1 WO 2023080871A1 TR 2022050903 W TR2022050903 W TR 2022050903W WO 2023080871 A1 WO2023080871 A1 WO 2023080871A1
Authority
WO
WIPO (PCT)
Prior art keywords
lens
patient
mask
examination
eye
Prior art date
Application number
PCT/TR2022/050903
Other languages
French (fr)
Inventor
Ertugrul CAN
Original Assignee
Ondokuz Mayis Universitesi Rektorluk
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from TR2021/017381 external-priority patent/TR2021017381A1/en
Application filed by Ondokuz Mayis Universitesi Rektorluk filed Critical Ondokuz Mayis Universitesi Rektorluk
Publication of WO2023080871A1 publication Critical patent/WO2023080871A1/en

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
    • A61B3/10—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions
    • A61B3/12—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions for looking at the eye fundus, e.g. ophthalmoscopes
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/0006—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 with means to keep optical surfaces clean, e.g. by preventing or removing dirt, stains, contamination, condensation
    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C11/00—Non-optical adjuncts; Attachment thereof
    • G02C11/08—Anti-misting means, e.g. ventilating, heating; Wipers

Definitions

  • the invention relates to an apparatus compatible with the eye-nose-cheek region, which can be integrated into indirect lenses, prevents the breath from escaping over the mask and reaching the lens by closing the area between the mask and the eye, to prevent fogging that occurs on the lens due to the patient's use of a mask and hinders the examination during examination with indirect lenses in ophthalmology.
  • ophthalmoscopy which is a type of retina, macula and optic nerve head examination (ophthalmoscopy)
  • the eye is examined using high dioptre lenses/lenses placed in the patient's eye with a light source directed by a prism and placed on the physician's head.
  • These lenses are kept in front of the patient's eyes by the physician, focusing the rays reflected from the inner part of the eye and providing a clear examination of the inside of the eye.
  • the physician must tilt or pivot the lens in the vertical or horizontal direction. Otherwise, it will not be possible to examine the retina layer of the eye properly.
  • the product named “ClearPod” in the previous art is an apparatus that aims to remove the fog formed during the examination of a patient wearing a mask from the lens surface and allows the physician to perform a clear eye examination.
  • This apparatus is designed to delay the fogging of the lenses, directing the hot air currents that occur as the patient exhales away from the lens surface.
  • the breath escaping from the upper part of the mask (hot air flow) while the patient is breathing strikes the protection area (flange) at the bottom of the product and is directed to the sides.
  • the “ClearPod” product the examining physician's hand is exposed to the breath that hits the protection area and is directed to the sides.
  • the optimum position of the “ClearPod” may be impaired, increasing the possibility of fogging on the lens.
  • the “ClearPod” is designed to only delay lens fogging and remains insufficient in preventing fogging completely.
  • the “ClearPod” is only compatible with one of the lenses of a company (90 dioptre lens) and cannot offer the option of using lenses of different sizes at the same time. Changes have been made to product dimensions for use with lenses of different sizes. In other words, one apparatus and more than one lens are not compatible.
  • the invention relates to an apparatus compatible with the eye-nose-cheek region, which can be integrated into indirect lenses, prevents the breath from escaping over the mask and reaching the lens by closing the area between the mask and the eye, to prevent fogging that occurs on the lens due to the patient's use of a mask and hinders the examination during examination with indirect lenses in ophthalmology.
  • the first aim of the invention is to prevent the formation of fogging on the indirect lens by preventing the patient's breath from escaping from the upper part of the mask during the examination.
  • This is achieved by the structure of the apparatus that is the subject of the invention being compatible with the eye-nose-cheek region, fully fitting the area between the mask and the eye and covering this area completely and preventing the passage of breath.
  • both the formation of fogging on the lens is prevented and the risk of contamination is minimized by preventing the patient's breath from touching the physician's hand. Since the human face is curved and each person has a different facial structure, a structure that can adapt to every face and prevents the escape of breath over the mask is provided with the invention.
  • Another aim of the invention is to provide the desired position to the lens while preventing the patient's breath from passing through the mask.
  • the apparatus being made of sponge, plastics and thermoplastics with different hardness values, silicone and its derivatives or rubber that maintains its form, a flexible and soft structure is obtained.
  • millimetric bending and pivoting movements can be made in every direction.
  • Another aim of the invention is to provide an apparatus that is easy to use, is ergonomic and does not disturb the patient during the examination.
  • an apparatus that does not disturb the patient during the examination is provided.
  • the lens cavity of the apparatus being flexible and soft, lenses of different sizes can be attached to the apparatus, and thus the apparatus can be used with lenses of different sizes.
  • an apparatus that prevents the escaping of the breath from the upper part of the mask while the patient is breathing, and thus completely prevents fogging, does not cause fogging on the lens even when tilting/rotating the lens during the examination, can be used with lenses of different sizes and does not disturb the patient during the examination.
  • Figure 1 View of surface A (the surface not in contact with the patient's face) of the anti-fog apparatus for ophthalmic indirect lens.
  • Figure 2 View of surface B (the surface in contact with the patient's cheek) of the antifog apparatus for ophthalmic indirect lens.
  • Figure 3 Bottom view of surface B (the surface in contact with the patient's cheek) of the anti-fog apparatus for ophthalmic indirect lens.
  • Figure 4 Side view of surface A (the surface not in contact with the patient's face) and surface B (the surface in contact with the patient's cheek) of the anti-fog apparatus for ophthalmic indirect lens.
  • Figure 5 Front view of anti-fog apparatus for ophthalmic indirect lens on patient.
  • Figure 6 Side view of anti-fog apparatus for ophthalmic indirect lens on patient.
  • Figure 7 Bottom view of anti-fog apparatus for ophthalmic indirect lens on patient.
  • A the surface facing the doctor during examination
  • an apparatus compatible with the eye-nose-cheek region which can be integrated into indirect lenses, prevents the breath from escaping over the mask and reaching the lens by closing the area between the mask and the eye is explained to prevent fogging that occurs on the lens due to the patient's use of a mask and hinders the examination during examination with indirect lenses in ophthalmology.
  • Said apparatus has two surfaces.
  • One of the surfaces is the A surface, which is the surface facing the doctor during the examination (the surface that is not in contact with the patient's face).
  • the second surface is the B surface, which is the surface that faces the patient during the examination (the surface in contact with the patient's cheek).
  • Anti-fog apparatus for the ophthalmic indirect lens which is the subject of the invention, comprises
  • a cheek support (2) in concave circular form located on surface B of the apparatus and protruding from surface B.
  • said apparatus is compatible with the eye-nose- cheek region.
  • the apparatus includes two outer protective edges (1 ), a cheek support (2) and an under-eye support (3) to prevent breath escaping from the top of the mask, and also includes a lens cavity (4) in which the indirect lens is placed.
  • the outer protective edges (1 ), the cheek support (2) and the under-eye support (3) each serve to prevent the breath from escaping from the top of the mask. The fact that all these parts are together ensures that the patient's breath does not escape over the mask and that the patient's breath does not reach the lens. For example, if the patient's breath escapes from the top of the mask and crosses the cheek support (2) towards the lens, the under-eye support (3) will create a second barrier. With the combination of the outer protective edges (1 ), cheek support (2) and under-eye support (3), escape from the upper part of the mask in all directions is prevented and thus the formation of fogging on the lens is completely prevented.
  • the outer protective edge (1 ) on both sides of the apparatus is structured in harmony with the side of the nose, and it contacts the area where the patient's nose and cheek meet during the examination and completely closes this area.
  • the lens cavity (4) protruding from surface A of the apparatus is a cavity in which the indirect lens is placed, and by means of its flexible and soft structure, lenses of different sizes can be placed easily from the front of the apparatus. By this way, the apparatus can be used with many lenses of different sizes.
  • the cheek support (2) located on surface B of the apparatus is a concave edge in circular form, configured to sit onto the cheek. By means of its concave circular form, it sits perfectly on the cheek and prevents the escape of breath from the upper part of the mask.
  • the under-eye support (3) of the apparatus on surface B ensures that the lens is at a sufficient distance for examination and fits perfectly around the eye. Since the human face has a curved structure and each person has a different facial structure, an apparatus made of flexible and soft material, which is structured to adapt to every face, is provided with the invention.
  • said apparatus is placed on the eye in a way to cover the eye-nose-cheek region remaining between the mask and the eye, thus preventing the patient's breath from escaping from the upper part of the mask during the examination.
  • the formation of fogging on the indirect lens is completely prevented.
  • both the formation of fogging on the lens is prevented and the risk of contamination is minimized by preventing the patient's breath from touching the physician's hand.
  • the apparatus of the invention is made of plastic, thermoplastics, silicone, silicone derivatives or rubber.
  • a flexible and soft structure is provided, and the desired position can be given to the lens while preventing the patient's breath from passing through the mask.
  • millimetric bending and pivoting movements are provided in all directions.

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  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Ophthalmology & Optometry (AREA)
  • Optics & Photonics (AREA)
  • Biomedical Technology (AREA)
  • Engineering & Computer Science (AREA)
  • Biophysics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Eye Examination Apparatus (AREA)

Abstract

The invention relates to an apparatus compatible with the eye-nose-cheek region, which can be integrated into indirect lenses, prevents the breath from escaping over the mask and reaching the lens by closing the area between the mask and the eye, to prevent fogging that occurs on the lens due to the patient's use of a mask and hinders the examination during examination with indirect lenses in ophthalmology.

Description

ANTIFOG APPARATUS FOR OPHTHALMIC LENSES
Technical Field of The Invention
The invention relates to an apparatus compatible with the eye-nose-cheek region, which can be integrated into indirect lenses, prevents the breath from escaping over the mask and reaching the lens by closing the area between the mask and the eye, to prevent fogging that occurs on the lens due to the patient's use of a mask and hinders the examination during examination with indirect lenses in ophthalmology.
State of the Art
In indirect ophthalmoscopy, which is a type of retina, macula and optic nerve head examination (ophthalmoscopy), the eye is examined using high dioptre lenses/lenses placed in the patient's eye with a light source directed by a prism and placed on the physician's head. These lenses are kept in front of the patient's eyes by the physician, focusing the rays reflected from the inner part of the eye and providing a clear examination of the inside of the eye. During the examination, the physician must tilt or pivot the lens in the vertical or horizontal direction. Otherwise, it will not be possible to examine the retina layer of the eye properly.
Face masks, which are obligatory for everyone to wear with the COVID-19 epidemic, have also created some difficulties when physicians diagnose eye diseases. Physicians have difficulties during the examination, especially since the lenses used during eye examinations become fogged with the breathing of the patient wearing the mask.
The product named “ClearPod” in the previous art is an apparatus that aims to remove the fog formed during the examination of a patient wearing a mask from the lens surface and allows the physician to perform a clear eye examination. This apparatus is designed to delay the fogging of the lenses, directing the hot air currents that occur as the patient exhales away from the lens surface. During the use of this product, the breath escaping from the upper part of the mask (hot air flow) while the patient is breathing strikes the protection area (flange) at the bottom of the product and is directed to the sides. However, while using the “ClearPod” product, the examining physician's hand is exposed to the breath that hits the protection area and is directed to the sides. As stated in the product's specifications, when the lens is tilted/pivoted, the optimum position of the “ClearPod” may be impaired, increasing the possibility of fogging on the lens. The “ClearPod” is designed to only delay lens fogging and remains insufficient in preventing fogging completely. In addition, the “ClearPod” is only compatible with one of the lenses of a company (90 dioptre lens) and cannot offer the option of using lenses of different sizes at the same time. Changes have been made to product dimensions for use with lenses of different sizes. In other words, one apparatus and more than one lens are not compatible.
Due to reasons such as the devices in the state of the art being insufficient to prevent fogging of the lenses, not being able to prevent the breath escaping from the upper part of the mask while patient is breathing, causing fogging on the lens when the lens is tilted/pivoted during the examination, their use being limited to a certain lens size and causing discomfort to the patient during the examination due to its hard structure, there is a need to develop an apparatus that prevents the escape of breath from the upper part of the mask while the patient is breathing and thus completely prevents fogging, does not cause fogging on the lens even when tilting/rotating the lens during the examination, can be used with lenses of different sizes and does not disturb the patient during the examination.
Brief Description and Aims of the Invention
The invention relates to an apparatus compatible with the eye-nose-cheek region, which can be integrated into indirect lenses, prevents the breath from escaping over the mask and reaching the lens by closing the area between the mask and the eye, to prevent fogging that occurs on the lens due to the patient's use of a mask and hinders the examination during examination with indirect lenses in ophthalmology.
The first aim of the invention is to prevent the formation of fogging on the indirect lens by preventing the patient's breath from escaping from the upper part of the mask during the examination. This is achieved by the structure of the apparatus that is the subject of the invention being compatible with the eye-nose-cheek region, fully fitting the area between the mask and the eye and covering this area completely and preventing the passage of breath. By this way, both the formation of fogging on the lens is prevented and the risk of contamination is minimized by preventing the patient's breath from touching the physician's hand. Since the human face is curved and each person has a different facial structure, a structure that can adapt to every face and prevents the escape of breath over the mask is provided with the invention.
Another aim of the invention is to provide the desired position to the lens while preventing the patient's breath from passing through the mask. By the apparatus being made of sponge, plastics and thermoplastics with different hardness values, silicone and its derivatives or rubber that maintains its form, a flexible and soft structure is obtained. By means of its flexible and soft structure, millimetric bending and pivoting movements can be made in every direction.
Another aim of the invention is to provide an apparatus that is easy to use, is ergonomic and does not disturb the patient during the examination. By means of the shape of the apparatus compatible with the eye-nose-cheek region and its flexible and soft structure, an apparatus that does not disturb the patient during the examination is provided. At the same time, by means of the lens cavity of the apparatus being flexible and soft, lenses of different sizes can be attached to the apparatus, and thus the apparatus can be used with lenses of different sizes.
With the invention, an apparatus is provided that prevents the escaping of the breath from the upper part of the mask while the patient is breathing, and thus completely prevents fogging, does not cause fogging on the lens even when tilting/rotating the lens during the examination, can be used with lenses of different sizes and does not disturb the patient during the examination.
Description of Drawings
Figure 1 : View of surface A (the surface not in contact with the patient's face) of the anti-fog apparatus for ophthalmic indirect lens.
Figure 2: View of surface B (the surface in contact with the patient's cheek) of the antifog apparatus for ophthalmic indirect lens.
Figure 3: Bottom view of surface B (the surface in contact with the patient's cheek) of the anti-fog apparatus for ophthalmic indirect lens. Figure 4: Side view of surface A (the surface not in contact with the patient's face) and surface B (the surface in contact with the patient's cheek) of the anti-fog apparatus for ophthalmic indirect lens.
Figure 5: Front view of anti-fog apparatus for ophthalmic indirect lens on patient.
Figure 6: Side view of anti-fog apparatus for ophthalmic indirect lens on patient.
Figure 7: Bottom view of anti-fog apparatus for ophthalmic indirect lens on patient.
Definition of Elements/Parts Composing the Invention
In order to better explain the anti-fog apparatus for ophthalmic indirect lenses developed with the invention, the parts in the figures are numbered and the items corresponding to each number is given below:
1 . Outer protective edge
2. Cheek support
3. Under-eye support
4. Lens cavity
5. Holding tab
A: the surface facing the doctor during examination
B: the surface facing the patient during examination
C: nose of the patient
Detailed Description of the Invention
In the invention, an apparatus compatible with the eye-nose-cheek region, which can be integrated into indirect lenses, prevents the breath from escaping over the mask and reaching the lens by closing the area between the mask and the eye is explained to prevent fogging that occurs on the lens due to the patient's use of a mask and hinders the examination during examination with indirect lenses in ophthalmology.
Said apparatus has two surfaces. One of the surfaces is the A surface, which is the surface facing the doctor during the examination (the surface that is not in contact with the patient's face). The second surface is the B surface, which is the surface that faces the patient during the examination (the surface in contact with the patient's cheek). Anti-fog apparatus for the ophthalmic indirect lens, which is the subject of the invention, comprises
• the outer protective edge (1 ), which is located on both sides of the apparatus and covers the area where the patient's nose and cheek meet during the examination,
• a cheek support (2) in concave circular form, located on surface B of the apparatus and protruding from surface B.
• an under-eye support (3) located on surface B of the apparatus and protruding from surface B,
• a lens cavity (4) located on surface A of the apparatus and protruding from surface A, into which the indirect lens is inserted, and
• at least one holding tab (5) located above and below the lens cavity (4).
As seen in Figure 1 and Figure 2, said apparatus is compatible with the eye-nose- cheek region. The apparatus includes two outer protective edges (1 ), a cheek support (2) and an under-eye support (3) to prevent breath escaping from the top of the mask, and also includes a lens cavity (4) in which the indirect lens is placed. The outer protective edges (1 ), the cheek support (2) and the under-eye support (3) each serve to prevent the breath from escaping from the top of the mask. The fact that all these parts are together ensures that the patient's breath does not escape over the mask and that the patient's breath does not reach the lens. For example, if the patient's breath escapes from the top of the mask and crosses the cheek support (2) towards the lens, the under-eye support (3) will create a second barrier. With the combination of the outer protective edges (1 ), cheek support (2) and under-eye support (3), escape from the upper part of the mask in all directions is prevented and thus the formation of fogging on the lens is completely prevented.
As shown in Figure 1 and Figure 2, the outer protective edge (1 ) on both sides of the apparatus is structured in harmony with the side of the nose, and it contacts the area where the patient's nose and cheek meet during the examination and completely closes this area. The lens cavity (4) protruding from surface A of the apparatus is a cavity in which the indirect lens is placed, and by means of its flexible and soft structure, lenses of different sizes can be placed easily from the front of the apparatus. By this way, the apparatus can be used with many lenses of different sizes. There is at least one holding tab (5) positioned above and below the lens cavity (4). This tab allows the physician to hold the apparatus comfortably during the examination and to give the lens the desired position.
As shown in Figure 2, Figure 3 and Figure 4, the cheek support (2) located on surface B of the apparatus is a concave edge in circular form, configured to sit onto the cheek. By means of its concave circular form, it sits perfectly on the cheek and prevents the escape of breath from the upper part of the mask. The under-eye support (3) of the apparatus on surface B ensures that the lens is at a sufficient distance for examination and fits perfectly around the eye. Since the human face has a curved structure and each person has a different facial structure, an apparatus made of flexible and soft material, which is structured to adapt to every face, is provided with the invention.
As can be seen in Figure 5, Figure 6 and Figure 7, said apparatus is placed on the eye in a way to cover the eye-nose-cheek region remaining between the mask and the eye, thus preventing the patient's breath from escaping from the upper part of the mask during the examination. By preventing the escape of breath from the upper part of the mask, the formation of fogging on the indirect lens is completely prevented. By this way, both the formation of fogging on the lens is prevented and the risk of contamination is minimized by preventing the patient's breath from touching the physician's hand.
The apparatus of the invention is made of plastic, thermoplastics, silicone, silicone derivatives or rubber. In this way, a flexible and soft structure is provided, and the desired position can be given to the lens while preventing the patient's breath from passing through the mask. By means of its flexible and soft structure, millimetric bending and pivoting movements are provided in all directions. With the shape of the apparatus compatible with the eye-nose-cheek region, and with its flexible and soft structure, an apparatus that is ergonomic and easy to use, and that does not disturb the patient during the examination, is provided.

Claims

1. An antifog apparatus for ophthalmic indirect lenses, comprising
• the outer protective edge (1 ), which is located on both sides of the apparatus and covers the area where the patient's nose and cheek meet during the examination by contacting this area,
• a cheek support (2) in concave circular form, located on surface B of the apparatus and protruding from surface B.
• an under-eye support (3) located on surface B of the apparatus and protruding from surface B,
• a lens cavity (4) located on surface A of the apparatus and protruding from surface A, into which the indirect lens is inserted.
2. Apparatus according to claim 1 , comprising at least one (5) located below and above the lens gap (4).
3. Apparatus according to claim 1 , where the apparatus is made of plastic, thermoplastic, silicone, silicone derivatives or rubber.
7
PCT/TR2022/050903 2021-11-08 2022-08-24 Antifog apparatus for ophthalmic lenses WO2023080871A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR2021/017381 TR2021017381A1 (en) 2021-11-08 Anti-fog device for ophthalmic lenses.
TR2021017381 2021-11-08

Publications (1)

Publication Number Publication Date
WO2023080871A1 true WO2023080871A1 (en) 2023-05-11

Family

ID=86241630

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/TR2022/050903 WO2023080871A1 (en) 2021-11-08 2022-08-24 Antifog apparatus for ophthalmic lenses

Country Status (1)

Country Link
WO (1) WO2023080871A1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4913545A (en) * 1988-10-06 1990-04-03 Volk Donald A Adapter for lens retaining ring for use in connection with eye examination
JP2014124277A (en) * 2012-12-26 2014-07-07 Hoya Corp Lens fitting instrument
WO2017191538A1 (en) * 2016-05-05 2017-11-09 Novartis Ag Fogging prevention for surgical contact lenses

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4913545A (en) * 1988-10-06 1990-04-03 Volk Donald A Adapter for lens retaining ring for use in connection with eye examination
JP2014124277A (en) * 2012-12-26 2014-07-07 Hoya Corp Lens fitting instrument
WO2017191538A1 (en) * 2016-05-05 2017-11-09 Novartis Ag Fogging prevention for surgical contact lenses

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