CN218767660U - Take sclera mirror of medicine slowly-releasing function - Google Patents
Take sclera mirror of medicine slowly-releasing function Download PDFInfo
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- CN218767660U CN218767660U CN202222426206.3U CN202222426206U CN218767660U CN 218767660 U CN218767660 U CN 218767660U CN 202222426206 U CN202222426206 U CN 202222426206U CN 218767660 U CN218767660 U CN 218767660U
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Abstract
The utility model discloses a take scleral mirror of medicine slowly-releasing function, be in including optics district, setting optics district periphery and be annular transition district and setting and be in the transition district periphery just is annular sitting district, the rear surface in order to form the rear surface of scleral mirror is connected with the rear surface in sitting district to the rear surface in optics district, transition district, the base arc district is located scleral mirror rear surface the transition district is provided with the medicine carrying area who is used for bearing the weight of the medicine, the medicine carrying area is the multislot structure. The utility model discloses an above-mentioned isotructure's cooperation has realized taking the scleral of medicine slow release function, and the patient is when wearing the scleral, and the scleral drug loading area bears the medicine, and liquid medicine diffuses and slow interaction to the tear between scleral and the eyeball, can help alleviating eyeball's uncomfortable symptom, and then improves the comfort level of scleral.
Description
Technical Field
The utility model relates to a scleral mirror technical field specifically is a take scleral mirror of medicine slowly-releasing function.
Background
Contact lenses can correct refractive errors of the eye, and hard contact lenses are commonly used which are worn on the cornea by direct contact with the cornea. However, since the cornea is rich in sensory nerve cells and is a relatively sensitive part of the human body, the direct wearing of the hard contact lens on the cornea is likely to cause foreign body sensation or other discomfort symptoms of the cornea, and these symptoms are more serious for patients suffering from corneal diseases (e.g., keratoconus, dry eye, etc.). In addition, it is difficult for patients with refractive error of the abnormal cornea to obtain clear and comfortable corrected vision through ordinary hard or soft contact lenses.
In response to the above problems, the prior art proposes a scleral lens that lands on the scleral region outside the limbus without contacting the cornea. Specifically, by increasing the diameter of the spectacle lens to make the lens larger than the entire cornea, all the contact points of the lens with the surface of the eye are changed from the cornea to the relatively insensitive sclera, so as to reduce the damage of the lens to the pathological cornea and reduce the existence of foreign body sensation of the eyeball. In particular, for some patients with damaged corneal tissue, the scleral lens can form a tear lens behind the lens with the cornea to contain tears, which can be used to protect the cornea. Moreover, the lachrymascope can well compensate the irregularity of the pathological cornea, so the lachrymascope is particularly suitable for improving the ametropia caused by the irregular cornea.
Most of the existing scleral lenses are those without a drug slow release function, and after people wear the scleral lenses for a long time, the eyes of the people are easy to have fatigue, dryness or other symptoms, and diseases such as conjunctivitis and the like are easy to cause. Moreover, blood vessels on the sclera are rich, the scleral mirror is thick and heavy, and complications such as conjunctival staining and the like are easily caused, so that the scleral mirror with the drug slow-release function is provided.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a take scleral mirror of medicine slowly-releasing function possesses its scleral mirror of taking medicine slowly-releasing function, and the patient is when wearing the scleral mirror, and the scleral mirror drug loading area bears the medicine, and liquid medicine diffuses and slow interaction to the tear between scleral mirror and the eyeball, can help alleviating eyeball's uncomfortable symptom, and then improves the comfort level of scleral mirror, has solved the problem of proposing among the above-mentioned background art.
In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a take scleral mirror of medicine slowly-releasing function, is in including optics district, setting optics district periphery and be annular transition zone and setting and be in the transition zone periphery just is annular and sits the district, the rear surface in optics district, transition zone is connected in order to form the rear surface of scleral mirror with the rear surface in the district of sitting, the base arc district is located scleral mirror rear surface the transition zone is provided with the drug loading district that is used for bearing the weight of the medicine, the drug loading district is the multislot structure.
Preferably, the grooves of the multi-groove structure on the medicine carrying area are annular grooves and are distributed in concentric circles at equal intervals.
Preferably, the basal arc region and the transition region form a lateral lacrimal fluid layer between the cornea and the scleral lens, and the thickness of the lacrimal fluid layer is 100-300 um.
Preferably, the diameter of the scleral mirror is D, the D is 14.5-17mm, and the scleral mirror is made of a high oxygen permeability material with a Dk value of 180.
Preferably, the slot width of the scleral mirror is 0.1mm, the slot depth is 0.1mm, and the center thickness is 0.1mm to 2mm.
Preferably, the posterior surface of the scleral mirror is designed to have a continuous curved surface with a predetermined shape, and the sagittal height of the posterior surface gradually decreases from the center of the basal arc region to the seating region.
Compared with the prior art, the beneficial effects of the utility model are that: its scleral mirror that takes medicine slowly-releasing function, the patient is when wearing the scleral mirror, and the scleral mirror drug loading area bears the medicine, and liquid medicine diffuses and slow interaction to the tear between scleral mirror and the eyeball, can help alleviating eyeball's uncomfortable symptom, and then improves the comfort level of scleral mirror.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a comparison diagram of the present invention;
fig. 3 is an enlarged view of the drug loading area of the present invention.
In the figure: 1. a base arc region; 2. an optical zone; 3. a drug loading area; 4. a transition zone; 5. a seating area.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1 to 3, the present invention provides a technical solution: the utility model provides a take sclera mirror of medicine slowly-releasing function, including optics district 2, the setting is at optics district 2 periphery and be annular transition zone 4, and set up at transition zone 4 periphery and be annular sitting district 5, base arc district 1, transition zone 4 can form one side tear layer in the middle of cornea and sclera mirror, its tear layer thickness should be 100 ~ 300um, optics district 2 spanes the cornea top region, be located the sclera mirror front surface, a final formation of image of tear layer for the light that will see through that base arc district 1 and transition zone 4 form focuses on the retina.
4 position angle scleral marginal zone tops in transition zone, the design of rotational symmetry aspheric surface, with the contact-free of corneoscleral margin, there is few tear clearance, reduce the pressure of lens to the tissue, the landing zone 5, be located scleral mirror rear surface, sphere rotational symmetry, accord with contact area's sclera form, with sclera contact, can fix a position the scleral and provide even holding power, and guarantee base arc district 1, transition zone 4 can form one side tear layer in the middle of cornea and scleral lens, it is reliable in order to guarantee that landing zone 54 and sclera contact, do not have the oppression to the sclera. The diameter of the seating area 54 is set to be 14.5mm to 17mm, the width is 2.5mm to 3.5mm, and the curvature radius is set to be 10.5mm to 13.5mm.
The back surface of the optical area 2 and the back surface of the transition area 4 are connected with the back surface of the seating area 5 to form the back surface of the scleral mirror, the base arc area 1 is positioned on the back surface of the lens, is spherical rotational symmetry, fits the geometric shape of the cornea, is not in contact with the cornea, keeps a proper tear gap, can provide good visual quality, does not stimulate the cornea, and can form a tear-accommodating mirror between the optical area 2 and the transition area 4 and the cornea when the scleral mirror is worn on the eyeball.
The diameter of scleral mirror is D, D is 14.5-17mm, and its material is the high oxygen permeability material that the Dk value is 180, and the groove width of scleral mirror is 0.1mm, and the groove depth is 0.1mm, and central thickness is 0.1mm to 2mm, and the continuous curved surface that has predetermined shape is designed into to the rear surface of scleral mirror, and the rise of rear surface reduces from base arc 1's central authorities to sitting district 5 gradually, in addition the utility model relates to a transition region of scleral mirror designs through corneal edge state, and the rise of the rear surface of transition region 4 is greater than the vector of the corneal peripheral zone of eyeball dark.
Optics district 2 and the cooperation of tear-drop lens are in order to carry out vision correction, are provided with the drug loading district 3 that is used for bearing the weight of the medicine in transition district 4, and drug loading district 3 is the multislot structure, and the groove of multislot structure is the ring channel on the drug loading district 3, and the equidistance is concentric circles form and distributes, according to the actual vision condition of patient we can design the groove of different quantity:
when the center thickness is 0.1-0.16mm, the thickness of the transition zone 4 is greater than 0.24mm, and the width of the transition zone 4 is 2-2.4mm, we set 2 grooves.
When the central thickness is 0.16-0.36mm, the thickness of the transition zone 4 is greater than 0.42mm, and the width of the transition zone 4 is 2.4-2.8mm, we set 4 grooves.
When the central thickness is 0.36-0.5mm, the thickness of the transition zone 4 is greater than 0.65mm, and the width of the transition zone 4 is 2.8-3.2mm, we set 6 grooves.
When the center thickness is 0.5-1.2mm, the thickness of the transition zone 4 is greater than 0.84mm, and the width of the transition zone 4 is 3.2-3.6mm, we set 8 grooves.
When the center thickness is 1.2-2mm, the thickness of the transition zone 4 is more than 1.52mm, and the width of the transition zone 4 is 3.6-4mm, 10 grooves are arranged.
Through soaking the scleral in liquid medicine so that liquid medicine keeps in drug carrying area 3, under this condition, because scleral medicine carries the medicine in 3 drug carrying areas, liquid medicine diffuses and slow interaction to the tear between scleral and the eyeball, can help alleviating the uncomfortable symptom of eyeball, and then improves the comfort level of scleral.
In some examples, the scleral mirror can be soaked in the drug bottle to enable the liquid drug to fill in the drug loading area 3 of the scleral mirror, in some examples, when the scleral mirror is idle or after use, the scleral mirror can be kept in the drug bottle.
In some examples, the liquid drug may be an anti-inflammatory agent, an antibiotic, or an anti-VEGF (immonoid, avastin, combispt, aflibercept, or noradar, etc.), in particular, the anti-VEGF may be one of an immonoid, avastin, or noradar. In some examples, the liquid drug may also be an anticoagulant, antimetabolite, or antimicrobial agent. From this, when the patient wears the scleral mirror, different symptoms can be alleviated through different medicines to the scleral mirror, can improve the comfort level when the scleral mirror is worn.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a take scleral mirror of medicine slowly-releasing function which characterized in that: including base arc district (1), optics district (2), set up optics district (2) periphery and be annular transition district (4) and set up and be in transition district (4) periphery and be annular sitting district (5), the rear surface of optics district (2), transition district (4) is connected with the rear surface of sitting district (5) in order to form the rear surface of scleral mirror, base arc district (1) is located scleral mirror rear surface transition district (4) are provided with medicine carrying area (3) that are used for bearing the weight of the medicine, medicine carrying area (3) are the multislot structure.
2. The scleral mirror with drug slow release function according to claim 1, wherein: the grooves of the multi-groove structure on the medicine carrying area (3) are annular grooves and are distributed in concentric circles at equal intervals.
3. The scleral mirror with drug slow release function according to claim 1, wherein: the basal arc area (1) and the transition area (4) can form a lacrimal fluid layer on one side between the cornea and the scleral lens, and the thickness of the lacrimal fluid layer is required to be 100-300 um.
4. The scleral mirror with drug slow release function according to claim 1, wherein: the diameter of the scleral mirror is D, the D is 14.5-17mm, and the scleral mirror is made of a high oxygen permeability material with a Dk value of 180.
5. The scleral mirror with drug slow release function according to claim 1, wherein: the groove width of the scleral mirror is 0.1mm, the groove depth is 0.1mm, and the center thickness is 0.1 mm-2 mm.
6. The scleral mirror with drug slow release function according to claim 1, wherein: the posterior surface of the scleral mirror is designed to be a continuous curved surface with a predetermined shape, and the rise of the posterior surface is gradually reduced from the center of the base arc area (1) to the sitting area (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222426206.3U CN218767660U (en) | 2022-09-14 | 2022-09-14 | Take sclera mirror of medicine slowly-releasing function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222426206.3U CN218767660U (en) | 2022-09-14 | 2022-09-14 | Take sclera mirror of medicine slowly-releasing function |
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| Publication Number | Publication Date |
|---|---|
| CN218767660U true CN218767660U (en) | 2023-03-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222426206.3U Active CN218767660U (en) | 2022-09-14 | 2022-09-14 | Take sclera mirror of medicine slowly-releasing function |
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| CN (1) | CN218767660U (en) |
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- 2022-09-14 CN CN202222426206.3U patent/CN218767660U/en active Active
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