CN203930243U - A kind of novel high oxygen permeability contact lens - Google Patents
A kind of novel high oxygen permeability contact lens Download PDFInfo
- Publication number
- CN203930243U CN203930243U CN201420317780.8U CN201420317780U CN203930243U CN 203930243 U CN203930243 U CN 203930243U CN 201420317780 U CN201420317780 U CN 201420317780U CN 203930243 U CN203930243 U CN 203930243U
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- China
- Prior art keywords
- contact lens
- oxygen permeability
- novel high
- high oxygen
- eyeglass body
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Abstract
The utility model relates to a kind of novel high oxygen permeability contact lens.The contact lense that object is to provide should have high, simple in structure, the lower-cost feature of oxygen transmission rate.Technical scheme is: a kind of novel high oxygen permeability contact lens, comprises eyeglass body; It is characterized in that: in the annular region of described eyeglass body surrounding, be shaped with some bleeder vents that run through eyeglass body at thickness direction.
Description
Technical field
The utility model relates to a kind of optical device, specifically a kind of for correcting or rescue the contact lens of eyesight.
Background technology
The contact lens of Leonardo da Vinci's invention has brought convenient and beautiful to people.But meanwhile,, because cornea contacts with contact lens zero distance, the quality of contact lens just becomes a key factor that affects our eye health.
It is more and more that at present China is used the people of contact lens, and a new noun is quietly occurring, that be exactly so-called " cornea aging ".The origin cause of formation of " cornea aging " is: because the oxygen transmission rate of eyeglass is not high, cause the cornea state in anoxic for a long time, cause corneal endothelial cell counts amount constantly to reduce.So the oxygen transmission rate of contact lens becomes the important indicator of weighing lens quality.
Existing contact lens, after wearing, can form a relative airtight cavity volume between eyeglass rear surface and cornea; Daytime is when wear, due to Rotation of eyeball and eyelid flicker comparatively frequent, the tear that lachrymal gland produces can flow in closed containing cavity by lens edge, and cornea in closed containing cavity is constantly carried out to oxygen supply; And to evening, along with the number of times minimizing of Rotation of eyeball and eyelid flicker, cornea exchanges by tear the oxygen amount obtaining also to be reduced thereupon, the oxygen permeability that now can only rely on lens materials is realized the oxygen supply of corneal.
Therefore when research and development contact lens, people always break through on the starting material of contact lens, select or invent the various lens materials with high oxygen transmission rate; Fluorine silica acrylic acid fat is exactly a kind of like this lens materials with high oxygen transmission rate, though fluorine add the oxygen transmission rate that can improve material, can reduce the physical strength of material simultaneously, patient is easily scratched by eyeglass in wearing process, cause cornea impaired.
Utility model content
The purpose of this utility model is the deficiency overcoming in above-mentioned background technology, and a kind of novel high oxygen permeability contact lens is provided, and this contact lense should have high, simple in structure, the lower-cost feature of oxygen transmission rate.
The technical solution of the utility model is: a kind of novel high oxygen permeability contact lens, comprises eyeglass body; It is characterized in that: in the annular region of described eyeglass body surrounding, be shaped with some bleeder vents that run through eyeglass body at thickness direction.
The aperture of described bleeder vent is 0.3-0.35mm.
The area accounting of described bleeder vent in annular region is greater than 0.7.
The beneficial effects of the utility model are:
In non-optical zones of the present utility model, arrange some bleeder vents, these bleeder vents have destroyed the leakproofness (having formed the cavity volume of an opening) of original cavity volume, make air to carry out convective exchange by the tear in these bleeder vents and cavity volume, constantly for cornea carries out oxygen supply; And such oxygen supply mode matches with the oxygen supply mode of original tear exchange, can form " two " passage of oxygen G&W, has greatly promoted the oxygen-supplying amount of cornea; Meanwhile, even if contact lens adopts the not high manufactured materials of oxygen transmission rate, by also significantly improving oxygen transmission rate after above-mentioned processing, reduced the cost of contact lense, and by extending the life-span of contact lens after the more high-intensity manufactured materials of employing.
Accompanying drawing explanation
Fig. 1 is main TV structure schematic diagram of the present utility model.
Fig. 2 is that the A of Fig. 1 is to structural representation.
Fig. 3 is plan structure schematic diagram of the present utility model.
Fig. 4 is perspective view of the present utility model.
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 Figure 1, a kind of novel high oxygen permeability contact lens, comprises eyeglass body 1; The 1-1Wei Optical Region, central area of described eyeglass body (the rectifiable eyesight in Optical Region), the annular region 1-2 that is centered around central area surrounding is non-optical zones.
In the non-optical zones of described eyeglass body, be shaped with some bleeder vent 1-3, these bleeder vents run through eyeglass body at thickness direction, and the area accounting of bleeder vent in non-optical zones is greater than 0.7 (70%).
These bleeder vents generally make (being prior art) by laser boring or other similar approach, and the aperture of bleeder vent is between 0.3-0.35mm simultaneously; Air can contact with the tear in cavity volume by these bleeder vents, improves the oxygen-supplying amount of cornea, and then reduces the disease that cornea causes because of anoxic.
Claims (3)
1. a novel high oxygen permeability contact lens, comprises eyeglass body (1); It is characterized in that: in the annular region (1-2) of described eyeglass body surrounding, be shaped with some bleeder vents (1-3) that run through eyeglass body at thickness direction.
2. a kind of novel high oxygen permeability contact lens according to claim 1, is characterized in that: the aperture of described bleeder vent is 0.3-0.35mm.
3. a kind of novel high oxygen permeability contact lens according to claim 1, is characterized in that: the area accounting of described bleeder vent in annular region is greater than 0.7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420317780.8U CN203930243U (en) | 2014-06-13 | 2014-06-13 | A kind of novel high oxygen permeability contact lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420317780.8U CN203930243U (en) | 2014-06-13 | 2014-06-13 | A kind of novel high oxygen permeability contact lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203930243U true CN203930243U (en) | 2014-11-05 |
Family
ID=51826032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420317780.8U Expired - Fee Related CN203930243U (en) | 2014-06-13 | 2014-06-13 | A kind of novel high oxygen permeability contact lens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203930243U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104473616A (en) * | 2014-12-18 | 2015-04-01 | 上海市同济医院 | Contact lens for continuously and dynamically monitoring intraocular pressure |
| CN110383149A (en) * | 2017-02-03 | 2019-10-25 | 德遁公司 | Oxygen flow contact lens structure with thick payload |
-
2014
- 2014-06-13 CN CN201420317780.8U patent/CN203930243U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104473616A (en) * | 2014-12-18 | 2015-04-01 | 上海市同济医院 | Contact lens for continuously and dynamically monitoring intraocular pressure |
| CN110383149A (en) * | 2017-02-03 | 2019-10-25 | 德遁公司 | Oxygen flow contact lens structure with thick payload |
| CN110383149B (en) * | 2017-02-03 | 2020-06-12 | 德遁公司 | Oxygen permeable contact lens structure with thick payload |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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 Electronic Medical Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141105 Termination date: 20200613 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |