CN208552131U - The intraocular lens of optical section punching - Google Patents
The intraocular lens of optical section punching Download PDFInfo
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- CN208552131U CN208552131U CN201721243199.6U CN201721243199U CN208552131U CN 208552131 U CN208552131 U CN 208552131U CN 201721243199 U CN201721243199 U CN 201721243199U CN 208552131 U CN208552131 U CN 208552131U
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- optical section
- intraocular lens
- support portion
- punching
- rear surface
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Abstract
Present embodiment discloses a kind of intraocular lens of optical section punching, including；The rear surface of circular optical section, the support portion being smoothly connected with optical section, the optical section is in concave curved surface shape, and the rear surface of the optical section is identical as the rear surface radius of curvature of the support portion, and the optical section is equipped with through-hole.The artificial lenticular implantation not only can be to avoid damage iris, but also can be convenient the flowing of intraocular aqueous humor and the removing of adhered elastomer, eye diseases caused by avoiding because of pupillary block.
Description
Technical field
The utility model relates to the intraocular lens that a kind of intraocular lens more particularly to a kind of optical section punch.
Background technique
Currently, myopia is the ametropia middle highest type of incidence in the whole world, according to investigations, in parts of Asia children and
Myopic ratio is up to 70% or more in teenager, and has the tendency that age of onset shifts to an earlier date, incidence increases.Work as mypia progression
To be more likely to cause retinopathy when pathological myopia, there is the risk of blindness.Change the method for crystalline lens diopter at present
There are two types of.
One is laser cutting corneas to solve myopia problem, but this method is irreversible, and for high myopia crowd,
It very likely results in that postoperative canthus is lepthymenia, cornea front surface morphologic change is excessive using laser technology, causes visual quality
It is dissatisfied.
People know various posterior chamber phakic intraocular lens in the prior art.These lens are implanted directly into eyes crystalline substance
Camera oculi posterior region between shape body and iris.One of these lens is the disadvantage is that need to allow liquid using peripheral iridectomy
Body flow to the anterior chamber of eyes from the back room of eyes.The prior art requires the implantation for being used without irotomy.Known lens
Have another disadvantage that the limitation to lens optic portion size.The prior art requires have big opticator lens.Existing skill
Art also requires the lens for having this spline structure, it does not interfere the liquid form of liquid in eyes, requires to have at the same time such
Structure, it can keep the position specified in eyes.Typical known lens utilize such tactile, its anterior chamber across eyes
And it engages the opposite segments of ciliary body and keeps lens fixed in place.Other lens are using iris in lens generation
Mental and physical efforts.There is crystal camera oculi posterior dioptric crystal in the punching of optics district center, is conducive to aqueous humor circulation, the crystalline substance not punched with optics area
Body is compared, and doctor, without carrying out peripheral iridectomy, can make more convenient and quicker of performing the operation, postoperative intraocular pressure is stablized before implantation.
Utility model content
It is obstructed and to solve the problems, such as to cause because of implantable artificial crystalline lens eye fluids to flow into anterior chamber from back room using iris
Periphery resection brings disease risk problem, and the utility model provides a kind of intraocular lens of optical section punching, this is artificial
Lenticular implantation not only but also can be convenient the flowing of intraocular aqueous humor and the removing of adhered elastomer to avoid damage iris, avoid because
Eye diseases caused by pupillary block.
The technical solution of the utility model are as follows:
A kind of intraocular lens of optical section punching, including；Circular optical section, the support being smoothly connected with optical section
Portion, the rear surface of the optical section are in concave curved surface shape, the rear surface curvature half of the rear surface of the optical section and the support portion
Diameter is identical, and the optical section is equipped with through-hole.
Preferably, the through-hole is set to the center of optical section, the liquid of back room more conducively intraocular in this way is flowed into
After anterior chamber, moistening for front all sites is taken into account.
Preferably, the diameter of through-hole is 0.30~0.40mm, through-hole diameter is too big, can be to intraocular lens at image quality
Amount, visual effect have an impact, and through-hole diameter is too small, is unfavorable for the flowing of liquid, and (blocking) further preferably, through-hole diameter is preferred
For 0.36mm.
Preferably, the rear surface radius of curvature of the optical section and the support portion is 9~11mm.Song within the scope of this
Rate radius is roughly the same with mankind's natural crystal front surface radius of curvature, can guarantee that intraocular lens fit to well in this way
Mankind's natural crystal surface.
Preferably, the diameter of the optical section is 4.0~6.0mm.
Preferably, the total length of the intraocular lens is 10~13mm.
Preferably, when the front surface of the optical section is in concave curved surface shape, the center thickness of the optical section is 0.01~
0.2mm.Further preferably, the center thickness of the optical section is 0.1mm.
Preferably, the width of the support portion be 4.5~6.5mm, the support portion with a thickness of 0.15~0.3mm.
Preferably, the outside of the support portion be also connected with it is different with the radius of curvature of the support portion rear surface
Another support portion.The access of another support portion can encounter cornea to avoid 401 front surface of optical section because of intra-ocular artificial lens
Disease of cornea caused by interior surface layers, or even blindness.
The utility model has the beneficial effect that
The utility model is because flowing into anterior chamber from back room convenient for eye fluids, following conducive to aqueous humor in opening up through-hole on optical section
Ring, eye diseases caused by efficiently solving because of pupillary block.And doctor is not necessarily to carry out peripheral iridectomy before implantation,
It can make more convenient and quicker of performing the operation, postoperative intraocular pressure is stablized.
Detailed description of the invention
Fig. 1 is the top view for the intraocular lens that embodiment provides；
Fig. 2 is the cross-sectional view for the intraocular lens that the anterior optic surface that embodiment provides is concave curved surface shape；
Fig. 3 is the cross-sectional view for the intraocular lens that the anterior optic surface that embodiment provides is convex-shaped surface；
Fig. 4 be embodiment provide with the second support portion and anterior optic surface is the intraocular implants of concave curved surface shape
The cross-sectional view of body；
Fig. 5 be embodiment provide with the second support portion and anterior optic surface is the intraocular implants of convex-shaped surface
The cross-sectional view of body.
Specific embodiment
In order to more specifically describe the present invention, with reference to the accompanying drawing and specific embodiment is to technical solution of the present invention
It is described in detail.
FIG. 1 to FIG. 5 is the view of intraocular lens provided in this embodiment.It is provided in this embodiment artificial according to Fig. 1
Crystalline lens is in concave curved surface by circular optical section 101, the support portion 102 being smoothly connected with optical section, the rear surface of optical section 101
Shape, the rear surface of optical section 101 and the rear surface radius of curvature of support portion 102 are identical, and optical section 101 is equipped with through-hole 103.This
In embodiment, through-hole 103 is set to the center of optical section 101, through-hole diameter 0.36mm.
Through-hole 103 be set to optical section 101 on, convenient for the circulation of eye fluids, and be avoided that intraocular lens implantation before
Iris periphery resection operation is carried out, guarantees the stability of postoperative intraocular pressure.
Embodiment 1
The intraocular lens provided in the present embodiment are as shown in Fig. 2, the front surface of the artificial lens optic 201 is recessed
Curved form, for correcting the myopia of any degree, and the concave curved radius surface of front surface determines the artificial lenticular diopter,
In general, intraocular lens provided in this embodiment correct the myopia from -1D to -30D.In general, concave curved radius surface has more
The known quantities such as refractive index, the diopter of material are calculated.
In the present embodiment, through-hole 203 is set to 201 center of optical section, and the diameter of through-hole 203 is 0.36mm, optics
The center thickness in portion 201 is 0.1mm, and the diameter of optical section 201 is 5.0mm, the rear surface radius of curvature of 201 support portion of optical section
For 10mm, the total length L of intraocular lens is 11mm, and the width of support portion 202 is 6mm, with a thickness of 0.2mm.
Embodiment 2
The intraocular lens provided in the present embodiment are as shown in figure 3, the front surface of the artificial lens optic 201 is convex
Curved form, for correcting the farsightedness of any degree, and the convex-shaped surface radius of front surface determines the artificial lenticular dioptric
Degree, in general, intraocular lens provided in this embodiment correct the farsightedness from+1D to+20D.
In the present embodiment, through-hole 303 is set to 301 center of optical section, and the diameter of through-hole 303 is 0.36mm, optics
The center thickness in portion 301 is 0.2mm, and the diameter of optical section 301 is 4.75mm, the rear surface curvature half of 301 support portion of optical section
Diameter is 10mm, and the total length L of intraocular lens is 10.8mm, and the width of support portion 302 is 6.0mm, with a thickness of 0.2mm.
Embodiment 3
Intraocular lens provided in this embodiment are as shown in figure 4, and for correction of myopia.It is provided with embodiment 1
Intraocular lens unlike, intraocular lens provided in this embodiment are also connected with and support in the outside of support portion 402
The different another support portion 404 of the radius of curvature of 402 rear surface of portion.
In the present embodiment, through-hole 403 is set to 401 center of optical section, and the diameter of through-hole 403 is 0.35mm, optics
The center thickness in portion 401 is 0.1mm, and the diameter of optical section 401 is 4.5mm, the rear surface radius of curvature of 401 support portion of optical section
For 10mm, the total length L of intraocular lens is 11.0mm, and the length of support portion 402 is 2mm between 4mm, another support portion
404 length is 0.5mm between 2mm.
Embodiment 4
Intraocular lens provided in this embodiment are as shown in figure 5, and for correcting farsightedness.It is provided with embodiment 2
Intraocular lens unlike, intraocular lens provided in this embodiment are also connected with and support in the outside of support portion 502
The different another support portion 504 of the radius of curvature of 502 rear surface of portion.
In the present embodiment, through-hole 403 is set to 401 center of optical section, and the diameter of through-hole 403 is 0.36mm, optics
The center thickness in portion 401 is 0.2mm, and the diameter of optical section 401 is 5.0mm, the rear surface radius of curvature of 401 support portion of optical section
For 10mm, the total length L of intraocular lens is 10.8mm, and the length of support portion 402 is 0mm to 2mm, another support portion 404
Length is 2mm to 4mm.
Any one artificial crystalline lens that Examples 1 to 4 provides can be implanted into camera oculi anterior, can also be implanted into camera oculi posterior,
Specifically, the intraocular lens that Examples 1 and 2 provide are implanted into camera oculi posterior, and the intraocular lens that embodiment 3 and 4 provides plant
Enter camera oculi anterior.Optical section can be manufactured by firm material such as polymethacrylates, can also use flexible soft material
Manufacture, manufactures in particular with the preferable soft material of biocompatibility.The preferable soft material of biocompatibility includes but unlimited
In soft polypropylene esters of gallic acid, silicone rubber kinds, gel-like etc..
Technical solution of the present invention and beneficial effect is described in detail in above-described specific embodiment, Ying Li
Solution is not intended to restrict the invention the foregoing is merely presently most preferred embodiment of the invention, all in principle model of the invention
Interior done any modification, supplementary, and equivalent replacement etc. are enclosed, should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of intraocular lens of optical section punching, including；Circular optical section, the support portion being smoothly connected with optical section,
The rear surface of the optical section is in concave curved surface shape, the rear surface radius of curvature phase of the rear surface of the optical section and the support portion
Together, which is characterized in that the optical section is equipped with through-hole.
2. the intraocular lens of optical section punching as described in claim 1, which is characterized in that the through-hole is set to optical section
Center.
3. the intraocular lens of optical section punching as described in claim 1, which is characterized in that the diameter of the through-hole is 0.30
~0.40mm.
4. the intraocular lens of optical section as claimed in claim 3 punching, which is characterized in that the diameter of the through-hole is
0.36mm。
5. the intraocular lens of optical section punching as described in claim 1, which is characterized in that the optical section and the support
The rear surface radius of curvature in portion is 9~11mm.
6. the intraocular lens of optical section as described in claim 1 punching, which is characterized in that the diameter of the optical section is
4.0~6.0mm.
7. the intraocular lens of optical section punching as described in claim 1, which is characterized in that the overall length of the intraocular lens
Degree is 10~13mm.
8. the intraocular lens of optical section as described in claim 1 punching, which is characterized in that the front surface of the optical section is in
When concave curved surface shape, the center thickness of the optical section is 0.01~0.2mm.
9. the intraocular lens of optical section as described in claim 1 punching, which is characterized in that the width of the support portion is
4.5~6.5mm, the support portion with a thickness of 0.15~0.3mm.
10. the intraocular lens of optical section punching as described in claim 1, which is characterized in that the support portion is external goes back
It is connected with and the different another support portion of the radius of curvature of the support portion rear surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721243199.6U CN208552131U (en) | 2017-09-26 | 2017-09-26 | The intraocular lens of optical section punching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721243199.6U CN208552131U (en) | 2017-09-26 | 2017-09-26 | The intraocular lens of optical section punching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208552131U true CN208552131U (en) | 2019-03-01 |
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ID=65445058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721243199.6U Active CN208552131U (en) | 2017-09-26 | 2017-09-26 | The intraocular lens of optical section punching |
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| CN (1) | CN208552131U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110151394A (en) * | 2019-06-19 | 2019-08-23 | 沈阳眼产业技术研究院有限公司 | It is additional to chase after strong type intraocular lens and its application |
| CN110623774A (en) * | 2019-09-30 | 2019-12-31 | 杭州爱晶伦科技有限公司 | Grooved hole type crystalline eye refractive artificial lens |
-
2017
- 2017-09-26 CN CN201721243199.6U patent/CN208552131U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110151394A (en) * | 2019-06-19 | 2019-08-23 | 沈阳眼产业技术研究院有限公司 | It is additional to chase after strong type intraocular lens and its application |
| CN110623774A (en) * | 2019-09-30 | 2019-12-31 | 杭州爱晶伦科技有限公司 | Grooved hole type crystalline eye refractive artificial lens |
| CN110623774B (en) * | 2019-09-30 | 2024-10-18 | 杭州爱晶伦科技有限公司 | Grooved intraocular lens with lens refractive power |
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