KR100881725B1 - Contact lenses in which tear circulation is formed to enhance osmotic function, and male jigs for producing such contacts - Google Patents

Contact lenses in which tear circulation is formed to enhance osmotic function, and male jigs for producing such contacts Download PDF

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Publication number
KR100881725B1
KR100881725B1 KR1020080023063A KR20080023063A KR100881725B1 KR 100881725 B1 KR100881725 B1 KR 100881725B1 KR 1020080023063 A KR1020080023063 A KR 1020080023063A KR 20080023063 A KR20080023063 A KR 20080023063A KR 100881725 B1 KR100881725 B1 KR 100881725B1
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KR
South Korea
Prior art keywords
tear
contact lens
contact
cornea
circuit
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KR1020080023063A
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Korean (ko)
Inventor
염광호
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염광호
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Priority to KR1020080023063A priority Critical patent/KR100881725B1/en
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Publication of KR100881725B1 publication Critical patent/KR100881725B1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/42—Moulds or cores; Details thereof or accessories therefor characterised by the shape of the moulding surface, e.g. ribs or grooves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D11/00—Producing optical elements, e.g. lenses or prisms
    • B29D11/00009—Production of simple or compound lenses
    • B29D11/00038—Production of contact lenses
    • B29D11/00076—Production of contact lenses enabling passage of fluids, e.g. oxygen, tears, between the area under the lens and the lens exterior
    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C7/00—Optical parts
    • G02C7/02—Lenses; Lens systems ; Methods of designing lenses
    • G02C7/04—Contact lenses for the eyes

Abstract

Inner side of a contact lens is provided to prevent cornea disease from the wearing of the contact lens by storing tear and artificial tear temporarily. A male and female type jig for producing the contact lens in which the tear circulation path is formed and such contact in order to increase osmotic function. A tear circulation path(14) circulating and storing tear are formed inner side of the contact lens(10) according to the columnar direction. A cornea contact unit(16) is protruded to have same height successively from inner side to the columnar direction. The contact lens in which the penetration hole(18) is formed on the tear circulation path is included.

Description

Contact lenses in which tear circulation is formed to enhance osmotic function, and male jigs for producing such contacts.

The present invention relates to a contact lens, and more particularly, to a contact lens capable of circulating and increasing the moisture content of tears so as to prevent drying of the cornea and blocking of air generated when the contact lens is worn. It's about her mother.

Republic of Korea Patent Publication No. 0411542 "Tear Circulator of Oxygen Permeable Hard Lens"

Republic of Korea Patent Publication No. 0599024 "Contact Lens for Corneal Refraction Correction with Through-holes"

Contact lenses are used for medical, professional, and aesthetic purposes. Medically, contact lenses are used when vision is not corrected sufficiently, but they must be used under certain wearing conditions. There are concerns about diseases such as hyperemia, cornea, conjunctiva, sclera, and eyelids.

In particular, the cornea is composed of bloodless and transparent tissues, and tears and air in the air supply oxygen to the cornea, but most contact lenses cause dehydration when worn for a long time. Followed.

Dry eye syndrome is prevented by putting artificial tears, but it has no effect when worn for a long time, and Korea Patent Registration No. 0741611 (2007.07.13) and Korea Patent Registration No. 0286971 that form contact lens itself with special ingredients. (2001.01.18) is disclosed.

The above known examples aim to increase the water content of the contact lens, but when the air required by the cornea is not directly supplied to the cornea, a tear or an artificial tear is generated or injected, and thus remains on the cornea. The problem was that the cornea was further damaged.

In addition, as other known examples, the Republic of Korea Patent Registration No. 0411542 (2003.12.04), the Republic of Korea Patent Registration No. 0599024 (2006.07.04) and the like to form a hole or through-holes, fittings in the contact lens It facilitates the circulation of air and tears.

However, although the holes, through-holes, and fittings applied to the other known examples are formed at intervals without being integrally formed due to the problem of lowering the adsorption force attached to the cornea, such a structure is directly in the circulation of air or tear. There was a problem that could not be supplied to.

The present invention has been made to solve such a problem, the object of the present invention is to smoothly supply air from the outside to the contact lens attached to the cornea, smooth the circulation and discharge of tears, tears The present invention provides a contact lens in which a tear circulation path is formed to enhance osmotic function so as to be stored for a certain time, and a male jig for producing such a contact.

In one preferred embodiment, the contact lens in which the tear circulation is formed to enhance the osmotic function according to the present invention,

In the contact lens comprising a tear circuit and a through hole forming a concave surface so that the tear is stored and circulated along the circumferential direction of the inner surface formed in contact with the cornea,

The tear circulation circuit forming the concave surface is overlapped with an end of the iris, and has a width of 0.8 mm to 1 mm toward the center of the contact lens.

The circumferential center of the tear circuit has a constant width and convex surface, and is divided into two or more in the cornea direction to form a tear circulation space, and a protruding corneal contact portion is formed.

The through-hole is formed as the tear circulation space.

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In addition, the present invention is formed on the inner surface of the contact lens contacting the cornea, the tear circulation path forming a concave surface so that tears are stored and circulated along the circumferential direction, the cornea protruding convex surface from the circumferential center of the tear cycle of the concave surface A corneal contact protrusion protruding to have a convex surface at the circumferential center of the tear circuit of the contact portion or the concave surface is selectively formed, and a male jig is inserted into the male jig to form a contact lens having a through hole formed on the tear circuit. In the male jig,

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As the molding surface of the female jig,
A first molding punch for forming a tear circuit so that tears are stored and circulated in the circumferential direction on the inner surface of the contact lens in contact with the cornea is formed integrally with a concave surface,

The corneal contact portion projecting to have a convex surface at the circumferential center of the tear circulation circuit of the concave surface, or the second molding punch in which the corneal contact protrusion projecting to have a convex surface at the circumferential center of the concave surface of the concave surface selectively protrudes Formed,
The third forming punch for forming the through-hole on the tear circulation path is characterized in that formed integrally protruding.

Further objects and effects of the present invention will become apparent from the following detailed description, and the detailed description and examples showing the preferred embodiments of the present invention are not intended to limit the scope of the present invention.

As described in detail above, according to the contact lens according to the present invention, tears or artificial tears generated from the eye by integrally forming a tear circuit, corneal contact portion to corneal contact protrusion, and through hole in the inner surface of the contact lens in contact with the cornea. The temporary storage is to supply and discharge moisture to the cornea, and at the same time to supply air to supply oxygen to the cornea, thereby preventing corneal disease from wearing contact lenses.

In addition, the corneal contact portion to the corneal contact protrusion applied in the present invention serves to reinforce the tear circulation in addition to the tear circulation.

Further, by providing a female jig and a female jig for processing the contact lens according to the present invention, it is possible to precisely shape the contact lens of a special shape like the present invention.

Hereinafter, one preferred embodiment according to the present invention will be described in detail with reference to the accompanying drawings. First, like reference numerals designate functionally identical or similar parts throughout the drawings.

1A is a perspective view showing an example of a contact lens according to the present invention, FIG. 1B is a sectional view of FIG. 1A, FIG. 1C is a view showing a state in which a contact lens is attached to the cornea, and FIG. 1D is a tear formed in the contact lens. Another embodiment of the circuit.

First, the iris is located inside the cornea 100 to control the size of the pupil, and means the part representing the color of the pupil, but the iris defined in the present invention is to see the cornea 100 from the outside of the cornea 100. When the color of the eye means the surface of the cornea (100).

1A to 1C, the contact lens 10 according to the present invention is provided with a tear circulation path 14 in which tears are stored along the circumferential direction of the inner surface 12 in contact with the cornea 100.

In the following description of the present invention, the inner direction and the inner surface 12 mean the direction of the cornea 100 in the state in which the concave portion of the contact lens 10 is in contact with the cornea 100, and means the surface being contacted. Outer direction means a direction opposite to the inner direction.

In addition, the circumferential direction means a direction of drawing a concentric circle at the center of the circular contact lens 10.

The tear circuit 14 according to the present invention is formed in an annular shape as a space in which tears or artificial tears are stored and circulated to supply moisture to the cornea 100.

Specifically, referring to FIG. 1B, the tear circuit 14 is concave in the concave shape along the inner surface 12 in the outer direction from the cornea 100, and the tear circuit 14 is preferably the contact lens 10. It is an annular shape that is connected continuously in the circumferential direction at the center of.

As shown in FIG. 1A, the contact lens 10 according to the present invention has a corneal contact portion 16 in the inner direction of the cornea 100, ie, a convex shape, circumferentially in the tear circuit 14. It is continuously projected and formed at the same height.

The corneal contact portion 16 is divided into one or more intervals along the circumferential direction to form a tear circulation space 17 again.

The corneal contact 16 partitions the tear circuit 14 up and down as shown, and tears are partitioned vertically through the tear circulation space 17 as a passage through the compartment of the corneal contact 16. Circulated along (16).

In another embodiment, as shown in FIG. 1D, the corneal contact portion 16 applied to the present invention may partition the tear circuit 14 into two or more.

In addition, the corneal contact portion 16 performs a role of supporting the contact lens 10 by contacting the cornea 100 and reinforcing the strength of the tear circuit 14 like a normal bead.

Again, in the tear circulation space 17 applied to the present invention, a through hole 18 for supplying external air or tear to the cornea 100 is formed, where the formation position of the through hole 18 is a tear. Anywhere in the circulation space 17 is irrelevant.

As shown in FIG. 1C, the tear circuit 14 and the tip of the iris of the contact lens 10 formed in accordance with the present invention are overlapped with each other. It consists of a width of 1mm.

The limited width of the tear circuit 14 extends over the tip of the iris, thereby minimizing and protecting the stimulus of the iris. In addition, due to the location of the tear circuit 14, the tears stored in the tear circuit 14 move in the pupil direction through osmotic pressure to supply water to the cornea 100.

As another embodiment of the present invention, Figure 2a is a view showing another embodiment of Figure 1a, Figure 2b is a cross-sectional view of Figure 2a.

As illustrated in FIGS. 2A and 2B, corneal contact protrusions 19 are formed on the tear circuit 14 forming a concave surface on the inner surface 12 of the contact lens 10.

The corneal contact protrusions 19 are continuously formed at intervals along the circumferential direction of the tear circuit 14, and the through-holes 18 are formed at two or more in the tear circuit 14 at equal intervals. .

The corneal contact protrusion 19 applied to the present invention serves to equalize the distribution of the tears stored in the tear circuit 14 through the surface tension and to perform the same role as the aforementioned corneal contact portion 16.

On the other hand, the present invention provides a male jig 20, 30 and the mold 40 for manufacturing the contact lens 10 as described above.

3A and 3B are diagrams showing a male jig for molding a contact lens according to the present invention, and FIG. 4 is a diagram showing a state in which a contact lens is molded according to the present invention through a male jig.

As shown in Figs. 3A to 4, the male jig 20 and 30 are formed with molding surfaces 22 and 32 on which the material of the contact lens to be molded is seated.

In particular, the molding surface 22 has the same curvature as the inner surface 12 of the contact lens 10 to be molded, and the female jig 20 is inserted into the male jig 30 to form the contact lens 10. This manufacturing method is a known technique already disclosed in Japanese Patent Laid-Open No. 4-2657100 "Method for manufacturing a contact lens".

The present invention relates to the above-described tear circuit 14, the corneal contact portion 16, the corneal contact projections 19, and the through hole 18 on the shaping surface 22 of the female jig 20. Corresponding first forming punches 24, second forming punches 26, and third forming punches 28 are integrally formed to protrude.

In the present invention, the third molding punch 28 for forming the through hole 18 is closed in a position lower or in surface contact with the molding surface 32 of the male jig 30. Although not shown, the contact lens 10 formed in the closed state is intended to give a cutting margin for the diesel processing of the final processing of the contact lens 10.

5A and 5B are perspective views of a mold core for molding a magnetic jig applied to the present invention, and FIG. 6 is a schematic mold partial view showing a state in which the magnetic jig is molded through the mold core applied to the present invention.

As shown, the present invention is a mold core 40 for molding the shaped jig 20 formed by protruding the first, second, third molding punches 24, 26, 28 on the molding surface 22. To provide.

The mold core 40 applied to the present invention includes the molding surface 22 of the female jig 20 and the first, second, and third molding punches 24, 26, 28 formed on the molding surface 22. First, second and third molding grooves 42, 44 and 46 corresponding to each other are formed on the inner surface 48 of the mold core 40 so as to mold the mold core 40. Follow the method of installation and formation by the manufacturing method.

That is, as will be clear from the above description, the present invention provides the contact lens 10, the female jig 20, and the mold core 40 for molding the final lens to tear or artificial tear in the contact lens 10. It may be stored and circulated to prevent drying of the eyeball, and external air may be supplied to the cornea 100.

This invention can be implemented in other various forms, without deviating from the mind or main characteristic. For this reason, the above-described embodiments are merely examples in all respects and should not be interpreted limitedly. The scope of the present invention is shown by the scope of the claims, and is not limited by the specification text. Again, all variations and modifications belonging to the equivalent scope of the claims are within the scope of the present invention.

1A is a perspective view showing an example of a contact lens according to the present invention

FIG. 1B is a cross-sectional view of FIG. 1A

1C is a view showing a state in which a contact lens is attached to the cornea

1D is another embodiment of a tear circuit formed in a contact lens

FIG. 2A illustrates another embodiment of FIG. 1A

FIG. 2B is a cross-sectional view of FIG. 2A

3A and 3B show a male jig for molding a contact lens according to the present invention;

4 is a view showing a state in which a contact lens according to the present invention is molded through a male jig

5A and 5B are perspective views of a mold core for molding a female jig applied to the present invention.

Figure 6 is a schematic mold partial view showing a state in which the magnetic jig is molded through the mold core applied to the present invention.

Claims (8)

delete delete In the contact lens comprising a tear circuit and a through hole forming a concave surface so that the tear is stored and circulated along the circumferential direction of the inner surface formed in contact with the cornea, The tear circulation circuit forming the concave surface is overlapped with an end of the iris, and has a width of 0.8 mm to 1 mm toward the center of the contact lens. The circumferential center of the tear circuit has a constant width and convex surface, and is divided into two or more in the cornea direction to form a tear circulation space, and a protruding corneal contact portion is formed. The tear lens circulation contact lens is formed with a tear circulation path to enhance the osmotic function, characterized in that the through-hole is formed. delete delete delete In the inner surface of the contact lens in contact with the cornea, a tear circulation path forming a concave surface is formed so that tears are stored and circulated along the circumferential direction, and the corneal contact portion or the concave surface protruded to have a convex surface at the circumferential center of the tear circulation circuit of the concave surface. In the male jig formed by the male jig is inserted into the male jig to form a contact lens protruding from the circumferential center of the tear circuit of the circumferential direction to have a convex surface, the through-hole contact lens formed on the tear circuit. , As the molding surface of the female jig, A first forming punch for forming a tear circuit so that tears are stored and circulated in the circumferential direction on the inner surface of the contact lens in contact with the cornea is formed integrally with a concave surface, The corneal contact portion projecting to have a convex surface at the circumferential center of the tear circulation circuit of the concave surface or the second molding punch in which the corneal contact protrusion projecting to have a convex surface at the circumferential center of the concave surface of the concave surface is selectively projected integrally Formed, The male jig, characterized in that the third forming punch for forming the through-hole on the tear circulation path protruded integrally. delete
KR1020080023063A 2008-03-12 2008-03-12 Contact lenses in which tear circulation is formed to enhance osmotic function, and male jigs for producing such contacts KR100881725B1 (en)

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KR1020080023063A KR100881725B1 (en) 2008-03-12 2008-03-12 Contact lenses in which tear circulation is formed to enhance osmotic function, and male jigs for producing such contacts

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KR1020080080631A Division KR100914215B1 (en) 2008-08-18 2008-08-18 Mold core to produce contact lenses with tear circulation to enhance osmotic function

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011149196A2 (en) * 2010-05-28 2011-12-01 Lee Moo-Suk Multifunctional lens having tear circulation and oxygen circulation functions
WO2014138139A1 (en) * 2013-03-05 2014-09-12 Eyeyon Medical Ltd Hyper-osmotic eye contact lens
KR20150116680A (en) * 2014-04-08 2015-10-16 박계능 Contact lens having a plurality of grooves and forming method thereof
CN105629504A (en) * 2016-03-25 2016-06-01 甘肃康视达科技集团有限公司 Contact lenses with water and oxygen channel
KR101978909B1 (en) * 2018-12-07 2019-05-17 (주) 맥브리즈 contact lens with increased tear circulation and jig for contact lens making
CN109906402A (en) * 2016-09-23 2019-06-18 威里利生命科学有限责任公司 Multi-part contact lenses with rear portion and front feature
KR102061813B1 (en) * 2019-05-10 2020-01-02 이기면 Contact lens with suction function and jig for contact lens making
KR102079718B1 (en) * 2019-10-18 2020-02-20 김지태 Mold core producing method for manufacturing contact lens mold
WO2022034957A1 (en) * 2020-08-11 2022-02-17 (주)메디오스 Soft contact lens
KR20220052235A (en) 2020-10-20 2022-04-27 한문섭 Contact lens having lacrimal damping holes and manufacturing method thereof

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030079417A (en) * 2002-04-04 2003-10-10 주식회사 인터로조 A manufacturing process and the lens of oxygen permeability hard contact lens for tear circulation
JP2007195818A (en) * 2006-01-27 2007-08-09 Akihiro Oguri Contact lens for orthokeratology

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030079417A (en) * 2002-04-04 2003-10-10 주식회사 인터로조 A manufacturing process and the lens of oxygen permeability hard contact lens for tear circulation
JP2007195818A (en) * 2006-01-27 2007-08-09 Akihiro Oguri Contact lens for orthokeratology

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011149196A2 (en) * 2010-05-28 2011-12-01 Lee Moo-Suk Multifunctional lens having tear circulation and oxygen circulation functions
WO2011149196A3 (en) * 2010-05-28 2012-03-08 Lee Moo-Suk Multifunctional lens having tear circulation and oxygen circulation functions
WO2014138139A1 (en) * 2013-03-05 2014-09-12 Eyeyon Medical Ltd Hyper-osmotic eye contact lens
CN105122120A (en) * 2013-03-05 2015-12-02 艾扬医药有限公司 Hyper-osmotic eye contact lens
KR20150116680A (en) * 2014-04-08 2015-10-16 박계능 Contact lens having a plurality of grooves and forming method thereof
KR101586630B1 (en) * 2014-04-08 2016-01-19 박계능 Contact lens having a plurality of grooves and forming method thereof
CN105629504A (en) * 2016-03-25 2016-06-01 甘肃康视达科技集团有限公司 Contact lenses with water and oxygen channel
CN109906402A (en) * 2016-09-23 2019-06-18 威里利生命科学有限责任公司 Multi-part contact lenses with rear portion and front feature
KR101978909B1 (en) * 2018-12-07 2019-05-17 (주) 맥브리즈 contact lens with increased tear circulation and jig for contact lens making
KR102061813B1 (en) * 2019-05-10 2020-01-02 이기면 Contact lens with suction function and jig for contact lens making
KR102079718B1 (en) * 2019-10-18 2020-02-20 김지태 Mold core producing method for manufacturing contact lens mold
WO2022034957A1 (en) * 2020-08-11 2022-02-17 (주)메디오스 Soft contact lens
KR20220052235A (en) 2020-10-20 2022-04-27 한문섭 Contact lens having lacrimal damping holes and manufacturing method thereof
KR102469239B1 (en) * 2020-10-20 2022-11-18 한문섭 Manufacturing method for contact lens having lacrimal damping holes and thereof

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