CN203941354U - A kind of comfortable contact lens for myopia - Google Patents
A kind of comfortable contact lens for myopia Download PDFInfo
- Publication number
- CN203941354U CN203941354U CN201420316023.9U CN201420316023U CN203941354U CN 203941354 U CN203941354 U CN 203941354U CN 201420316023 U CN201420316023 U CN 201420316023U CN 203941354 U CN203941354 U CN 203941354U
- Authority
- CN
- China
- Prior art keywords
- arc
- contact lens
- rigid
- soft edge
- annular
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Lifetime
Links
- 208000001491 myopia Diseases 0.000 title claims abstract description 15
- 230000004379 myopia Effects 0.000 title claims abstract description 15
- 239000000463 material Substances 0.000 claims abstract description 10
- 230000035515 penetration Effects 0.000 claims abstract description 7
- 239000002861 polymer material Substances 0.000 claims abstract description 5
- 230000007704 transition Effects 0.000 claims description 6
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 3
- VOZUMOCFOWPYGI-UHFFFAOYSA-N C(C=C)(=O)O.[Si].[F] Chemical compound C(C=C)(=O)O.[Si].[F] VOZUMOCFOWPYGI-UHFFFAOYSA-N 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000002253 acid Substances 0.000 claims description 3
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 claims description 3
- 125000005456 glyceride group Chemical group 0.000 claims description 3
- 239000000017 hydrogel Substances 0.000 claims description 3
- VLCAYQIMSMPEBW-UHFFFAOYSA-N methyl 3-hydroxy-2-methylidenebutanoate Chemical compound COC(=O)C(=C)C(C)O VLCAYQIMSMPEBW-UHFFFAOYSA-N 0.000 claims description 3
- 239000000741 silica gel Substances 0.000 claims description 3
- 229910002027 silica gel Inorganic materials 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 239000007789 gas Substances 0.000 abstract description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 3
- 239000001301 oxygen Substances 0.000 abstract description 3
- 229910052760 oxygen Inorganic materials 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 210000000744 eyelid Anatomy 0.000 description 5
- 210000005252 bulbus oculi Anatomy 0.000 description 4
- 210000004087 cornea Anatomy 0.000 description 4
- 230000035807 sensation Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 210000000981 epithelium Anatomy 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000001508 eye Anatomy 0.000 description 1
- 239000003889 eye drop Substances 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Landscapes
- Eyeglasses (AREA)
Abstract
The utility model relates to a kind of comfortable contact lens for myopia.That the contact lens that object is to provide has is comfortable, oxygen transmission rate is high, the feature of cracky not.Technical scheme is: this contact lens comprises the rigid eyeglass of the gas penetration potential hard material making of turning round the bodily form and the soft edge that rigid lens periphery region was made and be coated on to hydrated polymer material; Tear district for holding tear between rigid eyeglass and soft edge.
Description
Technical field
The utility model relates to a kind of contact lens, specifically a kind of comfortable contact lens for myopia.
Background technology
At present, patient's foreign body sensation when wearing the common hard corneal contact lens for myopia is more intense, and Patient Experience is not good.During daytime, Rotation of eyeball and eyelid flicker are more frequent, and the friction of contact lens and eyelid brings strong foreign body sensation.In evening, the flicker of Rotation of eyeball and eyelid tails off, but tear in eyeglass and cornea liquid storage cylinder exchange and also can reduce thereupon, cause and pluck mirror difficulty morning next day.Some patient even needs to drip 1-2 dripping eyedrop, and forced rotating eyes just can be plucked mirror.In addition, the current common hard corneal contact lens for myopia is due to the factor of material, making processing and patient all easily breakages of edge while using.
Utility model content
The purpose of this utility model is the deficiency overcoming in above-mentioned background technology, and a kind of comfortable contact lens for myopia is provided; That this contact lens has is comfortable, oxygen transmission rate is high, the feature of cracky not.
The technical scheme that the utility model provides is: a kind of comfortable contact lens for myopia, is characterized in that: this contact lens comprises the rigid eyeglass of the gas penetration potential hard material making of turning round the bodily form and the soft edge that rigid lens periphery region was made and be coated on to hydrated polymer material; Tear district for holding tear between rigid eyeglass and soft edge.
Described gas penetration potential hard material is a kind of in fluorine silicon acrylic acid ester, silica gel acrylic acid, fluorinated siloxane polymkeric substance.
Described hydrated polymer material is a kind of in hydrogel, methymethacrylate, hydroxyethyl methylacrylate, metering system acid glyceride.
The front surface of described rigid eyeglass is convex front face, and an annular groove concaving is arranged on this surface; The inside surface of described rigid eyeglass from middle toward the base arc of periphery successively annular arrangement, in advance reverse arc, reversion arc, pre-determined bit arc, locate arc, distal circumference arc, circumference arc totally 7 cambered surfaces; Described distal circumference arc includes an annular outside recessed groove; The front surface of rigid eyeglass and the transition cambered surface between inside surface are annular break-in face.
The inside projection that the front surface at described soft edge contains annular, this projection matches and mates with the groove of rigid lens front surface; The inside surface at soft edge contains the outside outstanding of annular, and this is outstanding matches and mate with the groove of described distal circumference arc; The transition cambered surface of the front surface at soft edge and inside surface is annular break-in face.
The front surface correspondence at described soft edge has covered all cambered surfaces of rigid eyeglass inside surface except base arc, and the inside surface at described soft edge has covered distal circumference arc, the circumference arc of rigid eyeglass inside surface.
The beneficial effects of the utility model are:
Rigid eyeglass in the utility model is wrapped up by soft edge, has reduced the risk of lens edge breakage.And when the flicker of Rotation of eyeball and eyelid, the foreign body sensation in the time of can reducing patient and wear.
Between rigid eyeglass of the present utility model and soft edge, by tear district, filled.Because soft edge is soft, be subject to external force to have very large deformation, so a pump of the common composition in rigid eyeglass, soft edge and tear district.When Rotation of eyeball and eyelid flicker, be equivalent at squeegee pump.Be no matter daytime or at night, this structure has all been accelerated tear exchange, thereby strengthened corneal oxygen supply and improved the comfort level of patient while joining mirror.
Inside surface of the present utility model comprises base arc, reverse arc, reversion arc, pre-determined bit arc, location arc, distal circumference arc, circumference arc in advance, this 7 cambered surfaces designs, and safety and comfort ground changes cornea shape more.
Accompanying drawing explanation
Fig. 1 is perspective view of the present utility model.
Fig. 2 is main TV structure schematic diagram of the present utility model.
Fig. 3 is the A-A cross-sectional view in Fig. 2.
Fig. 4 is B portion structure for amplifying schematic diagram in Fig. 3.
Embodiment
Below in conjunction with Figure of description, the utility model is described in further detail, but the utility model is not limited to following examples.
As shown in the figure, a kind of comfortable contact lens for myopia, comprises rigid eyeglass 1, soft edge 2 and tear district 3; Described rigid eyeglass adopts gas penetration potential hard material (RGP) material to make, can make the revolution bodily form by cutting process, inside surface from middle toward periphery (as shown in Figure 1) successively annular arrangement base arc 1-1, in advance reverse arc 1-2, reversion arc 1-3, pre-determined bit arc 1-4, locate arc 1-5, distal circumference arc 1-6, circumference arc 1-7.Described gas penetration potential hard material is a kind of in several hard corneal contact lens materials such as fluorine silicon acrylic acid ester, silica gel acrylic acid, fluorinated siloxane polymkeric substance.
Base arc 1-1 produces pressure by tear effect, can reduce the diopter of cornea; Pre-reversion arc 1-2 is steep compared with base arc 1-1, and holding portion moves epithelial tissue outward; The reversion arc 1-3 arc 1-2 that reverses is more in advance smooth, and smooth transition is moved epithelial tissue outward to locating arc holding portion; The pre-determined bit arc 1-4 arc 1-3 that reverses is smooth, with cornea laminating, plays the role of positioning; Arc 1-5 is smooth compared with pre-determined bit arc 1-4 in location, and smooth transition is to distal circumference arc and play the role of positioning; It is smooth that distal circumference arc 1-6 locates arc, is convenient to tear exchange, has outwards recessed groove 1-9 of annular on distal circumference arc 1-6; The front surface of described rigid eyeglass (right-hand member) is convex front face, includes an annular groove 1-8 who concaves.
Described soft edge 2 adopts hydrated polymer to make, this hydrated polymer is a kind of in hydrogel, methymethacrylate, hydroxyethyl methylacrylate, metering system acid glyceride, conventionally by the method (common process) of rotary casting, is coated on the neighboring area of rigid eyeglass; The inside protruding 2-1 that the front surface at soft edge contains annular, this projection matches and mates with the groove 1-9 concaving of the front surface of rigid eyeglass 1; The outside outstanding 2-2 that the inside surface at described soft edge contains annular, the outside recessed groove 1-9 of annular on the inside surface of this outstanding and rigid eyeglass matches and mates.Rigid eyeglass and soft edge 2 not exclusively laminating, the gap of leaving between them (gap length is selected as required) forms the tear district 3 that holds tear.
Due to the position of the protruding 2-1 at the soft edge pre-reversion arc 1-2 corresponding to rigid eyeglass inside surface, therefore, the front surface correspondence at soft edge has covered all cambered surfaces of rigid eyeglass outside surface except base arc corresponding domain; The inside surface at soft edge has covered distal circumference arc, the circumference arc of rigid eyeglass inside surface.
Claims (6)
1. the comfortable contact lens for myopia, is characterized in that: this contact lens comprises the rigid eyeglass (1) of the gas penetration potential hard material making of turning round the bodily form and the soft edge (2) that rigid lens periphery region was made and be coated on to hydrated polymer material; Tear district (3) for holding tear between rigid eyeglass and soft edge.
2. the comfortable contact lens for myopia according to claim 1, is characterized in that: described gas penetration potential hard material is a kind of in fluorine silicon acrylic acid ester, silica gel acrylic acid, fluorinated siloxane polymkeric substance.
3. the comfortable contact lens for myopia according to claim 2, is characterized in that: described hydrated polymer material is a kind of in hydrogel, methymethacrylate, hydroxyethyl methylacrylate, metering system acid glyceride.
4. according to the comfortable contact lens for myopia described in claim 2 or 3, it is characterized in that: the front surface of described rigid eyeglass is convex front face, an annular groove concaving (1-8) is arranged on this surface; The base arc (1-1) of the inside surface of described rigid eyeglass annular arrangement successively from inside to outside, reverse arc (1-2), reversion arc (1-3), pre-determined bit arc (1-4), location arc (1-5), distal circumference arc (1-6), circumference arc (1-7) in advance; Described distal circumference arc includes an annular outside recessed groove (1-9); The front surface of rigid eyeglass and the transition cambered surface between inside surface are annular break-in face.
5. the comfortable contact lens for myopia according to claim 4, is characterized in that: the front surface at described soft edge contains annular inside projection (2-1), and this projection matches and mates with the groove of rigid lens front surface; Outside outstanding (2-2) that the inside surface at described soft edge contains annular, this is given prominence to and matches and mate with the groove of described distal circumference arc; The transition cambered surface of the front surface at soft edge and inside surface is annular break-in face.
6. the comfortable contact lens for myopia according to claim 5, it is characterized in that: the front surface correspondence at described soft edge has covered all cambered surfaces of rigid eyeglass outside surface except base arc, and the inside surface at described soft edge has covered distal circumference arc, the circumference arc of rigid eyeglass inside surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420316023.9U CN203941354U (en) | 2014-06-13 | 2014-06-13 | A kind of comfortable contact lens for myopia |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420316023.9U CN203941354U (en) | 2014-06-13 | 2014-06-13 | A kind of comfortable contact lens for myopia |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203941354U true CN203941354U (en) | 2014-11-12 |
Family
ID=51860657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420316023.9U Expired - Lifetime CN203941354U (en) | 2014-06-13 | 2014-06-13 | A kind of comfortable contact lens for myopia |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203941354U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104035209A (en) * | 2014-06-13 | 2014-09-10 | 万马电子医疗有限公司 | Comfortable corneal contact lens for treating myopia |
-
2014
- 2014-06-13 CN CN201420316023.9U patent/CN203941354U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104035209A (en) * | 2014-06-13 | 2014-09-10 | 万马电子医疗有限公司 | Comfortable corneal contact lens for treating myopia |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141112 Effective date of abandoning: 20151028 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20141112 Effective date of abandoning: 20151028 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Taihu Qingyun Yuan Zhen Village in Ling'an city of Hangzhou city of Zhejiang Province in 311306 Patentee after: WANMA TECHNOLOGY Co.,Ltd. Address before: Taihu Qingyun Yuan Zhen Village in Ling'an city of Hangzhou city of Zhejiang Province in 311306 Patentee before: WANMA ELECTRON MEDICAL CO.,LTD. |