CN1734314A - Contact lens with micropore - Google Patents
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- CN1734314A CN1734314A CN 200410058305 CN200410058305A CN1734314A CN 1734314 A CN1734314 A CN 1734314A CN 200410058305 CN200410058305 CN 200410058305 CN 200410058305 A CN200410058305 A CN 200410058305A CN 1734314 A CN1734314 A CN 1734314A
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Abstract
The invention discloses a microporous contact lens, which comprises the following parts: contact lens body (1), periphery (2), optical area (4), and many micropores (3) confined between external and internal surface of the contact lens body. The dimension of microporous accelerates eyes to exchange cyclically among contact lens surface cover, external surface and continuous liquid or tears without covering lens and optical obstacle function condition.
Description
Technical field the invention belongs to the contact lenses technical field, and particularly a kind of band has the contact lenses of micropore.
Background technology it is believed that for a long time, wears contact lenses for a long time and can corneal cause negative effect, can cause corneal complication (owing to be collected in metabolic waste between contact lenses and eye interface and fragmental deposit cause).
Cornea is the living tissue with metabolic function.The refuse that metabolism produces, for example protein, lactic acid, carbon dioxide and water etc., owing to wear contact lenses for a long time and can cause the cornea anoxic, and can cause metabolic waste and other electrodeposition substance of from eyes, discharging in contact lenses and eye interface chien shih eyes suffer damage (for example cornea swelling, inflammation and other injury).
Wear the anoxic problem that contact lenses cause for a long time in order to solve, people have developed the hydrophilic contact lens of high oxygen permeability, are also referred to as hydrogel contact lens.The degree of cornea swelling is lower when wearing hydrophilic contact lens for a long time.
In order to solve the problem that refuse that metabolism produces and chip deposit between contact lenses and eye interface, people have for example developed:
U.S. Pat 2,989,894 1 kinds of contact lenses have five conduits that equally spaced helical tilts on the contact lenses inside surface, and helical tilts to be believed to make contact lenses to prolong clockwise direction according to vergence direction or counterclockwise rotates.
U.S. Pat 5,166,710 1 kinds of contact lenses have the cornea zone, and contact lenses are rotated, and the flat area on contact lenses produces " turbine effect " can make the tears film be transferred along ocular surface.Scheme has also been described contact lenses body rear surface sunken inside and partly has been channel form or zigzag and " thin wavy curved surface passage ".
U.S. Pat 60,221, a kind of contact lenses of 575 (China 01816507.9) have the microchannel of radially extending in its rear surface, to promote the eyes exposed surface and to be exchanged by the effective tears between the contact lenses covering surfaces.
The mentioned document full content of patent here for reference only.
Although developed the contact lenses of wearing for a long time pleasant, safety now, but also need a kind of further improved contact lenses, for example the circulation exchange of liquid or tears can be on the inside and outside surface of contact lenses and whole ocular surface zone, further promoted, and the contact lenses that the more available oxygen of the ocular surface that covered by contact lenses is supplied with can be further promoted.
Summary of the invention is found now, the exchange that circulates fast and effectively of liquid on inside and outside surface of contact lenses body and whole ocular surface or tears and tears film, can strengthen the oxygen supply of ocular surface, and the discharge that can strengthen eyes metabolic waste and chip is to avoid metabolic waste and the chip deposition between contact lenses inside surface and ocular surface.The removal of metabolic waste and chip and tears and tears film effectively circulate and can strengthen the oxygen supply of ocular surface, strengthen eye health, reduce negative effect that corneal causes and promote safety, the comfortable contact lenses of wearing for a long time.The contact lenses of reinforcement oxygen supply involved in the present invention, the circulation of strengthening liquid or tears and tears film, reinforcement metabolin and chip removal effect are specially adapted to high oxygen permeability and hydrophilic contact lens, for example contact lenses made from hydrophilic polymer material, silicone hydrogel material etc.Here related in ocular surface and in the exchange that can circulate fast and effectively of the inside and outside lip-deep liquid of contact lenses body or tears and tears film, and can strengthen the contact lenses that eyes metabolic waste and chip remove fast and effectively and can produce positive effect to eye health.Surface (contact lenses body inside surface) and contact lenses external surface that the contact lenses that constitute according to the present invention can provide effective especially eyes to be covered by contact lenses reach the circulation exchange that is covered liquid continuous between ocular surface or tears by contact lenses, and it is compared with conventional contact lenses and can produce more positive effect to eye health.
The contact lenses that have micropore involved in the present invention, can be by effectively in ocular surface and in the exchange that circulates fast and effectively of the inside and outside lip-deep liquid of contact lenses body or tears and tears film, remove eyes metabolic waste and chip, strengthen the oxygen supply of ocular surface and cornea; The comfort level that under the situation that wearer's vision is not produced big negative effect, helps the wearer, and promote eye health.
The contact lenses that have micropore involved in the present invention, comprise contact lenses body, contact lenses external surface, contact lenses body the inside surface surface of eyes (that is, in the face of), optical region (vision correction district), periphery and be limited to through a plurality of micropores between contact lenses external surface and inside surface.In one embodiment, be limited to through (being equivalent on the contact lenses body, wear numerous aperture) between the inside surface and outside surface of contact lenses body at a plurality of micropores under the situation that does not influence contact lenses bulk optics regional function.Water permeability and gas penetration potential that the contact lenses that have micropore of the present invention have height are particularly suitable as the contact lenses of wearing for a long time.The contact lenses that have micropore involved in the present invention compare with the contact lenses that do not have the hole can be safe and comfortable wear the long period.
Has a fairly large number of micropore on the contact lenses body that has micropore involved in the present invention, most of micropores are arranged in the periphery (non-optical zone) of contact lenses body, also have the part micropore to be arranged on the contact lenses bulk optics zone, the structure of micropore and layout can not produce harmful effect to optical region and vision correction on optical region.The contact lenses that have micropore involved in the present invention are compared with the similar or identical contact lenses that do not have micropore has identical vision quality.
The contact lenses that have micropore involved in the present invention, be to have a plurality of micropores that pass between the inside and outside surface of contact lenses body, it is equidistant basically that micropore partly becomes radial distribution, micropore spacing to the periphery by contact lenses body central area (optical region); Micropore plays the effect that connects the inside and outside surface of contact lenses body, micropore is basically arranging between the inside and outside surface of contact lenses body under the situation that does not hinder the optical region function evenly and density is suitable for forming continuous liquid film or tears film between contact lenses body inside surface and eyes, and forms continuous liquid film or tears film on the contact lenses external surface; By blinking of eyes impel the liquid of contact lenses body inside surface or tears by micropore to the continuous flow of contact lenses external surface, and promote liquid between contact lenses and the eyes or tears and contact lenses external surface and covered circulating and exchanging of the continuous liquid of formation between ocular surface or tears and tears film by contact lenses by blinking of eyes.
Micropore becomes radial periphery and the periphery that extends to contact lenses by the optical region at contact lenses in theory, each micropore size at 10 microns to 800 micrometer ranges, and micropore is being arranged substantially evenly on the contact lenses body and is being suitable in the contact lenses body, outside surface can form continuous liquid film and tears film, the size that the quantity of micropore depends on the aperture (promptly, the big quantity in aperture is few, the aperture smallest number is many), the size in aperture is not as the criterion not influence the optical region function basically, the size that the density of micropore depends on the aperture (promptly, the big density in aperture is little, and the little density in aperture is big) and can be in the contact lenses body, form continuous liquid film or tears film on the outside surface.
Micropore on contact lenses bulk optics zone since vision correction need the aperture should be less (pore size do not affect one's power of vision correcting function), and density is evenly moderate; Can suitably increase in peripheral part of contact lenses body and peripheral micropore size, on same contact lenses body and the micropore size of the same area (optical region or periphery) identical.Also can become radial at the peripheral part of contact lenses body and peripheral micropore size and increase gradually by middle mind-set periphery, on the same contact lenses body and the micropore size of the same area (periphery) can different (aperture increases to 800 micrometer ranges gradually at 10 microns).At the liquid film between contact lenses and the eyes on the contact lenses body or tears film and contact lenses external surface and not strong more with the increase of micropore size and circulating property by liquid film or tears film between contact lenses covering ocular surface, the circulation exchange velocity of big more liquid of micropore size or tears is fast more.
The quantity of micropore on the contact lenses body is many more, the aperture is big more, the water permeability of its contact lenses body and oxygen permeability are strong more, and can strengthen ocular surface oxygen supply, strengthen eyes metabolic waste and chip discharge avoiding deposition between contact lenses inside surface and ocular surface of metabolic waste and chip, to strengthen eye health, reduce to wear negative effect that the contact lenses corneal causes and promote safety, the comfortable contact lenses of wearing for a long time.
The shape of a plurality of micropores on the contact lenses body of the present invention is not only limited to circular port, also can be polygonal hole (example, hexagonal hole, type hole, eight limits), perhaps also can be bellmouth, taper hole is little in contact lenses body inside surface aperture, and the outside surface aperture is big, and the aperture of taper hole at 10 microns to 800 micrometer ranges, and have certain aperture, aperture and aperture size are as the criterion not influence contact lenses bulk optics regional function.Can utilize conventional and known any manufacturing technology or technology and combination to make micropore on the contact lenses.For example be provided with the possibility that the contact lenses of micropore have in manufacturing:
Technology such as for example molded, microcomputer processing, etching, laser, chemistry;
For example utilize laser technology directly micropore to be arranged on the contact lenses;
Feature described here and combination all are included in the scope of the present invention.
The contact lenses that have micropore involved in the present invention, in one embodiment, be limited to through (being equivalent on the contact lenses body, wear numerous aperture) between the inside surface and outside surface of contact lenses body at a plurality of micropores under the situation that does not influence contact lenses bulk optics regional function, on its contact lenses body inside surface, have between micropore and micropore passage link to each other constitute netted.Water permeability and gas penetration potential that the contact lenses that have micropore and netted passage of the present invention have height are particularly suitable as the contact lenses of wearing for a long time.The contact lenses that have micropore and netted passage involved in the present invention compare with the contact lenses that do not have hole and netted passage can be safe and comfortable wear the long period.
Have a fairly large number of micropore and netted passage on the contact lenses body that has micropore and netted passage involved in the present invention, most of micropores and netted channel arrangement are at the periphery (non-optical zone) of contact lenses body, part micropore and netted channel arrangement are also arranged on contact lenses bulk optics zone, the structure of micropore and netted passage and layout can not produce harmful effect to optical region and vision correction on optical region.The contact lenses that have micropore and netted passage involved in the present invention are compared with the similar or identical contact lenses that do not have micropore and netted passage has identical vision quality.
The contact lenses that have micropore and netted passage involved in the present invention, be to have a plurality of micropores that pass between the inside and outside surface of contact lenses body and on contact lenses body inside surface, have the passage that connects micropore, micropore partly becomes radial distribution to the periphery by contact lenses body central area (optical region), and the passage between Kong Yukong reticulates distribution.The micropore spacing is equidistant basically, and micropore plays the effect that connects the inside and outside surface of contact lenses body; Passage plays the effect that connects micropore.Micropore basically with between the inside and outside surface of contact lenses body, arrange under the situation that does not hinder the optical region function evenly and density moderate, passage is arranged to netted at contact lenses body inside surface between micropore, the layout of micropore and passage is suitable for forming continuous liquid film or tears film between contact lenses body inside surface and eyes, and forms continuous liquid film or tears film on the contact lenses external surface; By blinking of eyes impel the liquid of contact lenses body inside surface or tears by micropore to the continuous flow of contact lenses external surface, and promote liquid or tears and the contact lenses external surface between contact lenses and the eyes and do not covered to form circulating and exchanging of continuous liquid film or tears film between ocular surface by contact lenses by blinking of eyes, netted passage has the effect of assistant micropore, further promotes the circulation exchange of liquid or tears.
Micropore becomes radial arrangement to extend to the periphery and the periphery of contact lenses by the optical region at contact lenses in theory, each micropore size at 10 microns to 800 micrometer ranges, width of channel is between 6 microns to 800 microns between micropore, and channel width accounts in 60% to 100% scope of micropore size, and channel depth accounts in 20% to 100% scope of channel width; And arranging substantially evenly on the contact lenses body and be suitable in the contact lenses body at micropore under the situation that does not influence the optical region function and netted passage, outside surface can form continuous liquid film or tears film, the size that the quantity of micropore depends on the aperture (promptly, the big quantity in aperture is few, the aperture smallest number is many), the size that the density of micropore depends on the aperture (promptly, the big density in aperture is little, the little density in aperture is big) and can be in the contact lenses body, form continuous liquid film or tears film on the outside surface, the size in aperture is not as the criterion not influence the optical region function basically, width of channel and density depend on the size and the density in aperture, channel depth and channel width are corresponding, channel depth accounts in 20% to 100% scope of channel width, and be no more than in 80% scope of contact lenses body thickness, channel depth and width be not with basically to hinder the optical region function to be as the criterion.
Micropore on contact lenses bulk optics zone because the aperture that needs of vision correction should less (pore size be as the criterion with the correcting function that do not affect one's power of vision), and density is evenly moderate, pore interconnection and aperture are corresponding, channel width accounts in 60% to 100% scope in aperture (channel width is to be as the criterion at contact lenses body inside surface hatch bore diameter), and is arranged to netted; Can suitably increase in peripheral part of contact lenses body and peripheral micropore size, channel width and aperture are corresponding.On same contact lenses body and the micropore size of the same area (optical region or periphery) identical, and on same contact lenses body and the channel width of the same area (optical region or periphery) identical.Also can become radial at the peripheral part of contact lenses body and peripheral micropore size and increase gradually by middle mind-set periphery, can different (aperture increases to 800 micrometer ranges gradually at 10 microns) at the micropore size of the periphery on the same contact lenses body (non-optical zone); The pore interconnection width also becomes radial increase gradually with the radial increase in aperture, and have certain radiation angle and passage two ends width and the identical (example of ratio of two ends pore size separately connecting passage between two different apertures, the passage that connects 100 micron pore size and 200 micron pore size, account for 80% of pore size as channel width, 100 micron pore size place channel widths are that 80 microns, 200 micron pore size place channel widths are 160 microns, and pore interconnection has certain radiation angle).For example, be taken in when being arranged at micropore size on the contact lenses bulk optics zone at same contact lenses body less than the micropore size that is arranged on the peripheral part of contact lenses body, channel width between micropore and micropore is with regional micropore size is corresponding separately, and the channel width that is connected between the peripheral micropore on partly of the micropore on the contact lenses bulk optics zone and contact lenses body is same or have a certain angle with the channel width on the contact lenses bulk optics zone.Not strong more at the liquid film between contact lenses and the eyes on the contact lenses body or tears film and contact lenses external surface and the liquid film or the tears film that are covered between ocular surface with the increase of micropore size and circulating property by contact lenses, the circulation exchange velocity of big more liquid of micropore size or tears fast more (passage have auxiliary liquid or tears better circulate exchange interaction).
Micropore and the passage quantity on the contact lenses body is many more, the aperture is big more, passage wide more (size of micropore and passage and width are not as the criterion not influence contact lenses optical region function basically), the water permeability of its contact lenses body and oxygen permeability are strong more, and can strengthen the oxygen supply of ocular surface, the discharge of strengthening eyes metabolic waste and chip is to avoid metabolic waste and the chip deposition between contact lenses inside surface and ocular surface, strengthen eye health, reduce to wear the negative effect promotion safety that the contact lenses corneal causes, the comfortable contact lenses of wearing for a long time.
The shape of a plurality of micropores on the contact lenses body of the present invention is not only limited to circular port, also can be polygonal hole (example, hexagonal hole, type hole, eight limits), perhaps also can be bellmouth, taper hole is little in contact lenses body inside surface aperture, and the outside surface aperture is big, and the aperture of taper hole at 10 microns to 800 micrometer ranges, and have certain aperture, aperture and aperture size are as the criterion not influence contact lenses bulk optics regional function.Channel width is as the criterion with the size in contact lenses body inside surface taper hole aperture between the micropore on the contact lenses body inside surface.Can utilize conventional and known any manufacturing technology or technology and combination to make micropore and pore interconnection on the contact lenses.For example making the possibility that the contact lenses that have micropore of the present invention have:
Technology such as for example molded, microcomputer processing, etching, laser, chemistry;
For example utilize laser technology directly micropore and pore interconnection to be arranged on the contact lenses;
Feature described here and combination all are included in the scope of the present invention.
In following description, example and the claim the present invention has been described, particularly has been described explanation in conjunction with the accompanying drawings, its similar portions and structure are with similar accompanying drawing illustrative.
Brief description of drawings
Fig. 1 is the planimetric map of contact lenses that have micropore involved in the present invention, and its micropore is arranged at the periphery of contact lenses body.
Fig. 2 is the planimetric map of contact lenses that have micropore involved in the present invention, and its optical region at the contact lenses body is provided with a small amount of micropore.
Fig. 3 is the sectional view of the contact lenses body that the present invention relates to, comprising circular port and bellmouth schematic cross-section.
Fig. 4 is the part skeleton view of the contact lenses body that the present invention relates to, shows in detail the several micropores on the contact lenses body.
Fig. 5 is the planimetric map of the contact lenses that the present invention relates to, micropore on the periphery of its contact lenses body and the pore interconnection on inside surface.
Fig. 6 is the planimetric map of the contact lenses that the present invention relates to, and the optical region of its contact lenses body is provided with a small amount of micropore and the pore interconnection on inside surface.
Fig. 7 is the sectional view of the contact lenses body that the present invention relates to, comprising the schematic cross-section of the pore interconnection on cylindrical hole and pore interconnection and round taper hole and the inside surface.
Fig. 8 is the part skeleton view of the contact lenses body that the present invention relates to, shows in detail at several micropores on the contact lenses body and the pore interconnection on the inside surface.
Referring to contact lenses of the present invention have been shown among Fig. 1.Described contact lenses generally include contact lenses body (1), the external little parts of contact lenses (2), micropore (3), contact lenses bulk optics zone (4).Micropore is through the periphery (non-optical zone) between the inside and outside surface of contact lenses body among the figure, micropore is radial arrangement from center to periphery, and the aperture can increase gradually, and the aperture is between 10 microns to 800 microns, and micropore is arranged in the contact lenses surface evenly, density is moderate.The size of micropore is suitable for promoting liquid or tears to exchange and form uniform liquid film or tears film in the effective circulation on the eyes between contact lenses and eyes.
Contact lenses of the present invention have been shown among Fig. 2, have been furnished with a small amount of micropore (3) in its contact lenses bulk optics zone (4), and the aperture is less, it is even to arrange, density is moderate, to avoid influencing the optical region function.
Contact lenses body section synoptic diagram of the present invention has been shown among Fig. 3, the described shape that runs through a plurality of micropores between the inside and outside surface of contact lenses body is not only limited to circular port, also can be polygonal hole, perhaps also can be bellmouth, taper hole is little in contact lenses body inside surface aperture, and the outside surface aperture is big, and the aperture of taper hole at 10 microns to 800 micrometer ranges, and have certain aperture, aperture and aperture size do not influence contact lenses bulk optics regional function basically.Taper hole in contact lenses external surface aperture greater than the inside surface aperture, in order to avoid liquid or tears metabolic waste and the deposition of chip in the hole by the eyes carried secretly in the micropore circulation exchange process.
The part skeleton view of contact lenses body of the present invention has been shown among Fig. 4, and micropore of the present invention is arranged in the contact lenses surface evenly, and density is moderate.
Contact lenses of the present invention have been shown among Fig. 5, have comprised contact lenses body (1), the external little parts of contact lenses (2), micropore (3), passage between micropore (5), contact lenses bulk optics zone (4).Micropore is through the periphery (non-optical zone) between the inside and outside surface of contact lenses body among the figure, micropore is radial arrangement from center to periphery, and the aperture can increase gradually, and the aperture is between 10 microns to 800 microns, and micropore is arranged in the contact lenses surface evenly, density is moderate.Micropore has netted passage and is connected on contact lenses body inside surface, width of channel is between 6 microns to 800 microns, and channel width accounts in 60% to 100% scope of micropore size, channel depth accounts in 20% to 100% scope of channel width, channel width can increase with the radial increase of micropore size, and has certain radiation angle.The size of micropore and passage is suitable for promoting liquid or tears to exchange and form uniform liquid film or tears film in the effective circulation on the eyes between contact lenses and eyes.
Contact lenses of the present invention have been shown among Fig. 6, be furnished with a small amount of micropore (3) and pore interconnection (5) in its contact lenses bulk optics zone (4), the footpath is less in the optical region hole, and pore interconnection and aperture are corresponding, and (channel width accounts in 60% to 100% scope in aperture, channel depth accounts in 20% to 100% scope of channel width), micropore and channel arrangement are even, density is moderate, to avoid influencing the optical region function.Micropore size on being arranged at contact lenses bulk optics zone is during less than the micropore size that is arranged on the peripheral part of contact lenses body, channel width between micropore and micropore is with regional micropore size is corresponding separately, and the channel width that is connected between the peripheral micropore on partly of the micropore on the contact lenses bulk optics zone and contact lenses body is corresponding or have a certain angle with the channel width on the contact lenses bulk optics zone.
Contact lenses body section synoptic diagram of the present invention has been shown among Fig. 7, and described micropore (3) and the pore interconnection (5) that runs through between the inside and outside surface of contact lenses body is comprising the schematic cross-section of circular port and pore interconnection and bellmouth and pore interconnection.
The part skeleton view of contact lenses body of the present invention has been shown among Fig. 8, and micropore of the present invention (3) and pore interconnection (5) are arranged in the contact lenses surface evenly, and density is moderate.
According to of the present invention, to observe with different points of view, the micropore on the contact lenses body preferably has maximum aperture value, and the aperture breadth extreme is preferably in 10 microns to 200 microns or 200 microns to 800 micrometer ranges; The pore interconnection width and the degree of depth preferably also have maximal value, and the width and the degree of depth are preferably in 6 microns to 200 microns or 200 microns to 800 micrometer ranges.
Shown in Fig. 1 and Fig. 5 at the contact lenses optical region micropore and pore interconnection are not set, this has reduced even has eliminated the harmful effect that micropore and passage may cause contact lenses optical region function or visual performance substantially.
Contact lenses of the present invention can utilize any suitable manufacturing technology or its combination to make contact lenses involved in the present invention.Many manufacturing technologies or technology are this area routine or known, comprising turning, Laser Processing, injection-molded, casting etc. with and combination.
Contact lenses of the present invention are soft or flexible hydrophilic contact lens or silicone contact lenses etc.Described contact lenses are particularly suitable for long periods of wear, for example wear 24 hours continuously to two weeks or longer time, or as disposable Contact Lenses.The material that is suitable for making described contact lenses comprises contact lens material this area routine or known suitable eye etc. and combination thereof.For example, Chang Gui hydrophilic polymer material, hydrogel material (hydroxyethyl methacrylate sill, silicone hydrogel material, poromeric material etc.).
Contact lenses of the present invention can provide the liquid film or the tears film of uniform thickness under the situation that does not influence contact lenses optical region function or visual performance between contact lenses and eyes, and the circulation exchange of effective liquid or tears can be provided.
Contact lenses of the present invention can make at the liquid between contact lenses and eyes or tears and contact lenses external surface and the liquid or the tears that are covered between ocular surface by contact lenses and form continuous circulation exchange, form level and smooth and uniform liquid or tears distribution.Liquid or tears are continuous passes micropore of the present invention, so that effective circulation exchange to be provided, may to be deposited on metabolic waste between contact lenses and eyes and chip and to be discharged from along with the circulation exchange of liquid or tears.Particularly, because micropore size and width of channel and the degree of depth are moderate, so in the metabolic waste of eyes and chip can not be collected in.Described contact lenses can be safe and comfortable wear the long period.
Although invention has been described with reference to embodiment, the present invention is not limited only to this, and can implement with various forms within the scope of the claims.
Claims (10)
1. contact lenses that have micropore that are used on the eyes, described contact lenses comprise:
Contact lenses body, described contact lenses body have outside surface and the inside surface surface of eyes (that is, in the face of), optical region (vision correction district), periphery; And be limited to through a plurality of micropores between contact lenses external surface and inside surface, described micropore is sized to and it is suitable for promoting surface and contact lenses external surface that eyes are covered by contact lenses to reach the circulation exchange that is not covered liquid continuous between ocular surface or tears by contact lenses under the situation that does not hinder the optical region function basically, and promotes the circulation exchange of liquid continuous between contact lenses body inside surfaces (surface that eyes are covered by contact lenses) and contact lenses external surface or tears.
2. contact lenses is characterized in that according to claim 1, a plurality of micropores are equidistant radial spaced apart basically, basically be that density is arranged between contact lenses external surface and inside surface uniformly, the quantity of micropore and density are standard not hinder the optical region function, and its size determines and is arranged to impelling continuous liquid film or the tears film of formations between contact lenses and eyes, and promotes liquid between contact lenses and the eyes or tears with the contact lenses external surface and exchanged by the liquid continuous between contact lenses covering ocular surface or the circulation of tears.
3. contact lenses is characterized in that according to claim 1, and a plurality of micropores are arranged at the micropore that only is limited in the peripheral part of contact lenses body; Be arranged at the micropore that is limited in the optical region down to small part in the situation that does not influence contact lenses bulk optics regional function; The quantity of micropore is less than the quantity of micropore in the periphery in the optical region, and the pore size of micropore is not with basically to hinder the optical region function to be as the criterion in the optical region; Micropore comprises that the maximum diameter of hole is at 10 microns micropores to 800 micrometer ranges.
4. contact lenses is characterized in that according to claim 1, and the pore size of a plurality of micropores needn't be limited in the certain numerical value scope, and pore size is not with basically to hinder the optical region function to be as the criterion.
5. contact lenses is characterized in that according to claim 1, the shape of a plurality of micropores is not only limited to circular port, also can be polygonal hole (example, hexagonal hole, type hole, eight limits), perhaps also can be bellmouth (example: contact lenses body inside surface aperture is little, and the outside surface aperture is big), and the aperture of taper hole at 10 microns to 800 micrometer ranges, and have certain aperture, aperture and aperture size are as the criterion not influence contact lenses bulk optics regional function; A plurality of micropores are equidistant radial spaced apart basically, and micropore size is equidistant radial spaced apart partly by optical region to the periphery, and the aperture can become radial increase gradually at 10 microns to 800 micrometer ranges.
6. contact lenses that are used on the eyes, described contact lenses comprise:
Contact lenses body, described contact lenses body have outside surface and the inside surface surface of eyes (that is, in the face of), optical region (vision correction district), periphery; Be limited to through a plurality of micropores between contact lenses external surface and inside surface; Be limited to the netted passage that connects on the contact lenses body inside surface between micropore and micropore;
Being limited to and having netted passage at its contact lenses body inside surface between micropore and the micropore on the peripheral part of contact lenses body and be connected, and extend to the peripheral part edge of contact lenses body, is fluid communication;
Being limited to and having netted passage at its contact lenses body inside surface between micropore and the micropore on the contact lenses bulk optics zone and be connected, is fluid communication;
Be limited on the contact lenses bulk optics zone micropore be limited to the peripheral part of contact lenses body on micropore between have netted passage at its contact lenses body inside surface and be connected, be fluid communication.
7. it is characterized in that as contact lenses as described in the claim 6:
Having netted passage at its contact lenses body inside surface between a plurality of micropores and micropore is connected;
Having netted passage at its contact lenses body inside surface between the micropore on the peripheral part of contact lenses body and micropore is connected;
Having netted passage at its contact lenses body inside surface between the micropore on the contact lenses bulk optics zone and micropore is connected.
8. it is characterized in that as contact lenses as described in the claim 6 channel width between micropore and micropore is determined same and accounted in 60% to 100% scope of micropore size, and channel width is to be as the criterion at contact lenses body inside surface hatch bore diameter; Channel width between micropore and micropore is at 6 microns passages to 800 micrometer ranges; Channel depth between micropore and micropore accounts in 20% to 100% scope of channel width, channel depth at 2 microns to 800 micrometer ranges, and be no more than in 80% scope of contact lenses body thickness, channel depth accounts in 20% to 80% scope of contact lenses body thickness, and the channel width and the degree of depth be not with basically to hinder the optical region function to be as the criterion.
9. it is characterized in that as contact lenses as described in the claim 6, can be slightly less than the micropore size that is arranged on the peripheral part of contact lenses body being arranged at micropore size on the contact lenses bulk optics zone on the same contact lenses body, and the channel width between micropore and micropore is corresponding with the micropore size on the zone (optical region or periphery) separately; The channel width that is connected between the micropore on the peripheral part of the micropore on the contact lenses bulk optics zone and contact lenses body is same or have a certain angle with the channel width on the contact lenses bulk optics zone.
10. it is characterized in that as contact lenses as described in the claim 6, a plurality of micropores are equidistant radial spaced apart basically, and its size determines and is arranged to impelling continuous liquid film or the tears film of formations between contact lenses and eyes, and promote between liquid between contact lenses and the eyes or tears and contact lenses external surface and the ocular surface that do not covered by contact lenses between continuous liquid or the circulation of tears exchange; Having netted passage at its contact lenses body inside surface between a plurality of micropores and micropore is connected, and it is sized to impel between a plurality of micropores and micropore and forms more effective continuous liquid film or tears film between contact lenses and eye, and promote between liquid between contact lenses and the eyes or tears and contact lenses external surface and the ocular surface that do not covered by contact lenses between more effective continuous liquid or the circulation of tears exchange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410058305 CN1734314A (en) | 2004-08-11 | 2004-08-11 | Contact lens with micropore |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410058305 CN1734314A (en) | 2004-08-11 | 2004-08-11 | Contact lens with micropore |
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| CN1734314A true CN1734314A (en) | 2006-02-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410058305 Pending CN1734314A (en) | 2004-08-11 | 2004-08-11 | Contact lens with micropore |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101078815B (en) * | 2006-05-23 | 2010-05-12 | 许维斌 | Contact lens |
| CN102576158A (en) * | 2009-10-01 | 2012-07-11 | 库柏维景国际控股公司 | Silicone hydrogel contact lenses and methods of making silicone hydrogel contact lenses |
| CN106249429A (en) * | 2015-06-04 | 2016-12-21 | 具五涉 | Old man's contact lens |
| CN109297913A (en) * | 2018-10-11 | 2019-02-01 | 京东方科技集团股份有限公司 | Glucose detection diaphragm, contact lenses and its detection system, regulating system |
| US20210364824A1 (en) * | 2020-05-22 | 2021-11-25 | Optotune Ag | Corrective lens and method for fabrication of a corrective lens |
-
2004
- 2004-08-11 CN CN 200410058305 patent/CN1734314A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101078815B (en) * | 2006-05-23 | 2010-05-12 | 许维斌 | Contact lens |
| CN102576158A (en) * | 2009-10-01 | 2012-07-11 | 库柏维景国际控股公司 | Silicone hydrogel contact lenses and methods of making silicone hydrogel contact lenses |
| US8672475B2 (en) | 2009-10-01 | 2014-03-18 | Coopervision International Holding Company, LLC | Silicone hydrogel contact lenses and methods of making silicone hydrogel contact lenses |
| CN102576158B (en) * | 2009-10-01 | 2014-07-16 | 库柏维景国际控股公司 | Silicone hydrogel contact lenses and methods of making silicone hydrogel contact lenses |
| CN106249429A (en) * | 2015-06-04 | 2016-12-21 | 具五涉 | Old man's contact lens |
| CN109297913A (en) * | 2018-10-11 | 2019-02-01 | 京东方科技集团股份有限公司 | Glucose detection diaphragm, contact lenses and its detection system, regulating system |
| US11529098B2 (en) | 2018-10-11 | 2022-12-20 | Beijing Boe Technology Development Co., Ltd. | Contact lens, system and method for monitoring glucose |
| US20210364824A1 (en) * | 2020-05-22 | 2021-11-25 | Optotune Ag | Corrective lens and method for fabrication of a corrective lens |
| CN113721373A (en) * | 2020-05-22 | 2021-11-30 | 奥普托图尼股份公司 | Corrective lens and method for manufacturing a corrective lens |
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