CN206534733U - The convex pair of aspheric intraocular lens such as adjustable - Google Patents
The convex pair of aspheric intraocular lens such as adjustable Download PDFInfo
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- CN206534733U CN206534733U CN201620853071.0U CN201620853071U CN206534733U CN 206534733 U CN206534733 U CN 206534733U CN 201620853071 U CN201620853071 U CN 201620853071U CN 206534733 U CN206534733 U CN 206534733U
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- adjustable
- contact portion
- ring shaped
- shaped contact
- intraocular lens
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Abstract
The utility model discloses the convex pair of aspheric intraocular lens such as a kind of adjustable, the convex pair of aspheric intraocular lens such as adjustable include optical section and two support loops, the preceding surface and rear surface of the optical section are set in convex outward, and be convexly equipped with the rear on surface along the ring shaped contact portion of the periphery extension of the optical section, ring shaped contact portion protrusion height is more than the evagination size on the rear surface, the ring shaped contact portion is used to after artificial lens implantation eyeball, contacted with rear capsule, described two support loops are symmetrically set in the outer peripheral face of the optical section, after artificial lens implantation after capsule, the ring shaped contact portion is contacted with the inner surface of the rear capsule, the proliferation of lens epithelial cells remained with stopping after cataract operation moves to the adjustable etc. between convex pair of aspheric intraocular lens and rear capsule of artificial lens.
Description
Technical field
The utility model is related to technical field of medical instruments, more particularly to a kind of convex pair of aspheric Intraocular's crystalline substance such as adjustable
Body.
Background technology
Artificial lens is a kind of people that can be implanted into the artificial lens of intraocular, become muddiness because of cataract conditions for replacing
Mineral crystal in eye.The form of artificial lens, is typically to be made up of the support loop on a circular optical part and periphery.Optics
Part is made up of transparent high polymer material.These high polymer materials can be hard or soft.By hard material
The artificial lens being made, it is necessary to which intraocular could be implanted into by a larger otch (being typically larger than 6 millimeters), now progressively by
Eliminate.The artificial lens being made up of soft material, is also frequently referred to as foldable artificial lens, can pass through after folding or curling
One less otch (from less than 2 millimeters to 3 millimeters) implantation intraocular.Currently used for the soft material for preparing foldable artificial lens
Material is broadly divided into several classes such as silica gel, hydrophilic acrylate's (hydrogel) and hydrophobic acrylic acid's ester.
Post gelating time, also referred to as secondary cataract is the common complication of artificial lens implantation latter.Post gelating time is
Because the proliferation of lens epithelial cells remained after cataract operation moves to what is caused between the rear surface of artificial lens and rear capsule.
Utility model content
Main purpose of the present utility model is solve how to stop that the Lens Epithelial Cells remained after cataract operation increase
Grow the problem of moving between the rear surface of artificial lens and rear capsule.
To reach above-mentioned technical purpose, the utility model provides a kind of convex pair of aspheric intraocular lens bag such as adjustable
Include：
Optical section, the preceding surface and rear surface of the optical section in etc. convex and aspherical convex outward set, and in institute
State and be convexly equipped with rear surface along the ring shaped contact portion of the periphery extension of the optical section, ring shaped contact portion protrusion height is more than
The evagination size on the rear surface, the ring shaped contact portion is used to after artificial lens implantation eyeball, the interior table with rear capsule
Face is contacted；And,
Two support loops, are symmetrically set in the outer peripheral face of the optical section.
Preferably, the rear end face in the ring shaped contact portion is in curved surface is set.
Preferably, the outer peripheral face of the ring shaped contact portion and the optical section is in seamlessly transit setting.
Preferably, the rear end face in the ring shaped contact portion is set in arc surface.
Preferably, the outer peripheral face of the optical section and the outer surface in the ring shaped contact portion are tangent.
Preferably, it is in seamlessly transit setting between the ring shaped contact portion and the rear surface.
Preferably, the protrusion height on the rear surface is h, and h is 0.2 to 0.4mm.
Preferably, the ring shaped contact portion protrusion height H, H-h>0.3mm.
Preferably, the optical section and the thickness of the junction of each support loop, the thickness to should be greater than corresponding support loop
Degree.
Preferably, the peripheral region of the optical section is provided with optical tag portion.
In the technical scheme that the utility model is provided, the periphery extension along the optical section is convexly equipped with surface in the rear
Ring shaped contact portion, ring shaped contact portion protrusion height is more than the evagination size on the rear surface, and the ring shaped contact portion is used
After artificial lens implantation eyeball, to be contacted with the inner surface of rear capsule, to stop on the crystal remained after cataract operation
Epithelial cell proliferation moves to the adjustable etc. between convex pair of aspheric intraocular lens and rear capsule of artificial lens.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the accompanying drawing used required in description of the prior art is briefly described, it should be apparent that, drawings in the following description are only
It is some embodiments of the present utility model, for those of ordinary skill in the art, is not paying the premise of creative work
Under, other accompanying drawings can also be obtained according to the structure shown in these accompanying drawings.
One visual angle of one embodiment of the convex pair of aspheric intraocular lens such as adjustable that Fig. 1 provides for the utility model it is vertical
Body structural representation；
The sectional structure signal of the convex pair of aspheric intraocular lens after the 0AB section views of face such as adjustable shown in Fig. 2 Fig. 1
Figure；
Fig. 3 is Fig. 2 local Is II enlarged diagram.
Drawing reference numeral explanation：
Realization, functional characteristics and the advantage of the utility model purpose will be described further referring to the drawings in conjunction with the embodiments.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the present utility model, rather than all
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making creative work premise
Lower obtained every other embodiment, belongs to the scope of the utility model protection.
If it is to be appreciated that related in the utility model embodiment directionality indicate (such as upper and lower, left and right, it is preceding,
Afterwards ...), then directionality indicates to be only used for explaining relative between each part under a certain particular pose (as shown in drawings)
Position relationship, motion conditions etc., if the particular pose changes, directionality indicates also correspondingly therewith to change.
If, should " first ", " the in addition, relate to the description of " first ", " second " etc. in the utility model embodiment
Two " etc. description is only used for describing purpose, and it is not intended that indicating or implying its relative importance or implicit indicate meaning
The quantity of the technical characteristic shown.Thus, " first " is defined, the feature of " second " can express or implicitly include at least one
Individual this feature.In addition, the technical scheme between each embodiment can be combined with each other, but must be with ordinary skill
Personnel can be implemented as basis, when the combination appearance of technical scheme is conflicting or can not realize it will be understood that this technical side
The combination of case is not present, also not within the protection domain of the utility model requirement.
The utility model provides the convex pair of aspheric intraocular lens such as a kind of adjustable, Fig. 1 to Fig. 3 is referred to, in this practicality
In an embodiment of convex pair of aspheric intraocular lens such as adjustable for new offer, convex pair of aspheric Intraocular's crystalline substance such as adjustable
Body 100 includes：
Optical section 1, the preceding surface 11 and rear surface 12 of the optical section 1 in etc. convex and aspherical convex outward set,
And be convexly equipped with the rear on surface along the ring shaped contact portion 3 of the periphery extension of the optical section 1, the ring shaped contact portion 3 is convex
Go out the evagination size that height is more than the rear surface 12, the ring shaped contact portion 3 is used to be implanted into eyeball in the artificial lens
Afterwards, the inner surface with rear capsule is contacted；And,
Two support loops 2, are symmetrically set in the outer peripheral face of the optical section 1.
So-called " waiting convex and aspherical convex outward " means the preceding surface 11 and rear surface 12 is identical evagination
Curved surface, namely the preceding surface 11 and the rear surface 12 are set in symmetrical convex outward, and the curved surface is not sphere.
In the technical scheme that the utility model is provided, the week along the optical section 1 is convexly equipped with surface 12 in the rear
The ring shaped contact portion 3 of edge extension, the protrusion height of ring shaped contact portion 3 is more than the evagination size on the rear surface 12, the ring
Shape contact site 3 is used to after artificial lens implantation after capsule, is contacted with the inner surface of the rear capsule, to stop cataract operation
The proliferation of lens epithelial cells remained afterwards move to artificial lens the convex pair of aspheric intraocular lens 100 such as adjustable and rear capsule it
Between.
The ring shaped contact portion 3 can be touched everywhere with rear capsule for convenience, and the rear end face in the ring shaped contact portion 3 is in
Curved surface is set, it is thus possible to effectively completely keep apart in described other regions of optical section 1.Specifically, in the present embodiment
In, the rear end face in the ring shaped contact portion 3 is spherical to be set.
In addition, in order to avoid junction between the ring shaped contact portion 3 and the side surface of optical section 1, occur stress concentration,
May occur crackle, the ring shaped contact portion when the convex pair of aspheric intraocular lens 100 such as adjustable are in curling, at this
3 with the outer peripheral face of the optical section 1 in setting is seamlessly transitted, specifically, in the present embodiment, the outer peripheral face of the optical section 1
Outer surface with the ring shaped contact portion 3 is tangent.
Further, in order to avoid junction between the ring shaped contact portion 3 and the rear surface 12 of optical section 1, occurring should
Power is concentrated, when the convex pair of aspheric intraocular lens 100 such as adjustable are in curling, may occur crackle, the ring at this
It is in seamlessly transit setting between shape contact site 3 and the rear surface 12.
In the present embodiment, the bulge size on the rear surface 12 should not be too big, the bulge size on surface 12 when described after
When too big, it can make it that the gap between the lower on the rear surface 12 and rear capsule is excessive, so that, it is described adjustable etc. convex double non-
Less stable of the sphere artificial lens 100 in pouch, in the present embodiment, the protrusion height on the rear surface 12 is h, h
For 0.2 to 0.4mm.
In the present embodiment, in order to ensure that the ring shaped contact portion 3 preferably can be contacted with the rear capsule, the annular connects
Contact portion 3 protrusion height H, H-h>0.3mm.
In order to avoid the support loop 2 is in flexural deformation, by deformation power totally tansitive to the optical section 1, so that
Obtain the optical section 1 and deform upon line, the optical section 1 and the thickness of the junction of each support loop 2, it is corresponding to should be greater than
The thickness of loop 2 is supported to set, so that, the junction of the optical section 1 and each support loop 2, the deformation to the support loop 2
Power is absorbed or stopped, it is to avoid totally tansitive to the optical section 1.
Further, operator's (be usually oculist) identification convex couple of aspheric Intraocular such as adjustable for convenience
The rear surface 12 of crystal 100, it is to avoid instead fill the convex pair of aspheric intraocular lens 100 such as adjustable, in the present embodiment,
The peripheral region of the optical section 1 is provided with optical tag portion 4.
Preferred embodiment of the present utility model is these are only, its scope of the claims is not thereby limited, it is every to utilize this practicality
Equivalent structure or equivalent flow conversion that new specification and accompanying drawing content are made, are directly or indirectly used in other related skills
Art field, is similarly included in scope of patent protection of the present utility model.
Claims (10)
- The convex pair of aspheric intraocular lens such as 1. one kind is adjustable, it is characterised in that including：Optical section, the preceding surface and rear surface of the optical section in etc. convex and aspherical convex outward set, and in the rear It is convexly equipped with surface along the ring shaped contact portion of the periphery extension of the optical section, ring shaped contact portion protrusion height is more than described The evagination size on surface afterwards, the ring shaped contact portion is used to after artificial lens implantation eyeball, is contacted with rear capsule；And,Two support loops, are symmetrically set in the outer peripheral face of the optical section.
- 2. the convex pair of aspheric intraocular lens such as claimed in claim 1 adjustable, it is characterised in that the ring shaped contact portion Rear end face is in curved surface to be set.
- 3. the convex pair of aspheric intraocular lens such as claimed in claim 2 adjustable, it is characterised in that the ring shaped contact portion with The outer peripheral face of the optical section is in seamlessly transit setting.
- 4. the convex pair of aspheric intraocular lens such as claimed in claim 3 adjustable, it is characterised in that the ring shaped contact portion Rear end face is set in arc surface.
- 5. the convex pair of aspheric intraocular lens such as claimed in claim 4 adjustable, it is characterised in that the periphery of the optical section The outer surface in face and the ring shaped contact portion is tangent.
- 6. the convex pair of aspheric intraocular lens such as claimed in claim 2 adjustable, it is characterised in that the ring shaped contact portion with It is in seamlessly transit setting between the rear surface.
- 7. the convex pair of aspheric intraocular lens such as claimed in claim 1 adjustable, it is characterised in that the protrusion on the rear surface Highly it is h, h is 0.2 to 0.4mm.
- 8. the convex pair of aspheric intraocular lens such as claimed in claim 7 adjustable, it is characterised in that the ring shaped contact portion is convex Go out height H, H-h>0.3mm.
- 9. the convex pair of aspheric intraocular lens such as claimed in claim 1 adjustable, it is characterised in that the optical section with it is each The thickness of the junction of loop is supported, the thickness to should be greater than corresponding support loop.
- 10. the convex pair of aspheric intraocular lens such as claimed in claim 1 adjustable, it is characterised in that the week of the optical section Optical tag portion is provided with edge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620853071.0U CN206534733U (en) | 2016-08-08 | 2016-08-08 | The convex pair of aspheric intraocular lens such as adjustable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620853071.0U CN206534733U (en) | 2016-08-08 | 2016-08-08 | The convex pair of aspheric intraocular lens such as adjustable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206534733U true CN206534733U (en) | 2017-10-03 |
Family
ID=59936726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620853071.0U Active CN206534733U (en) | 2016-08-08 | 2016-08-08 | The convex pair of aspheric intraocular lens such as adjustable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206534733U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110811925A (en) * | 2019-12-13 | 2020-02-21 | 上海千健医药科技有限公司 | Intraocular lens for eye rehabilitation implantation |
-
2016
- 2016-08-08 CN CN201620853071.0U patent/CN206534733U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110811925A (en) * | 2019-12-13 | 2020-02-21 | 上海千健医药科技有限公司 | Intraocular lens for eye rehabilitation implantation |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190731 Address after: Barbados First Floor, Trident Building, Lower Broad Street, Bridge Pier, Barbados, USA Patentee after: Lanstek (Barbados) Co., Ltd. Address before: Room 501-503, Block D, Shenzhen Institute of Space Science and Technology Innovation Building, No. 6 South Science and Technology 10 Road, Nanshan High-tech Zone, Shenzhen, Guangdong Province Patentee before: Shenzhen New Industries Material of Ophthalmology Co., Ltd. |
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| TR01 | Transfer of patent right |