CN203280538U - Intraocular lens - Google Patents
Intraocular lens Download PDFInfo
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- CN203280538U CN203280538U CN2013200192801U CN201320019280U CN203280538U CN 203280538 U CN203280538 U CN 203280538U CN 2013200192801 U CN2013200192801 U CN 2013200192801U CN 201320019280 U CN201320019280 U CN 201320019280U CN 203280538 U CN203280538 U CN 203280538U
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Abstract
The utility model discloses an intraocular lens, comprising an optical body and a support body. The intraocular lens comprises a front surface and a rear surface. The optical body is oval-shaped. A long shaft is horizontally disposed, and a short shaft is vertically disposed.
Description
Technical field
This utility model relates to a kind of intraocular lens (IOL).More particularly, this utility model relates to a kind of intraocular lens that can implant in eyes in order to the corrective ophthalmic refractive error.
Background technology
The applicant has submitted the patent of invention that is entitled as " intra ocular diopter lens and method for implantation thereof " on February 21st, 2003, application number is 03115498.0, publication number is CN1466934A, quotes in full and incorporates the application in infinite mode at this, to facilitate understanding of the present utility model.
In recent years, along with the universal of the becoming better and approaching perfection day by day of Ophthalimic microsurgery skill, intraocular lens (intraocular lens) implantation with improve.In the clinical practice of lens, find that intraocular lens in use glare phenomenon can occur, also referred to as light leakage phenomena within the eye.The core of intraocular lens is optical bodies, and also referred to as Optical Region, this Optical Region forms optical channel, and the situation of expectation is, the light that enters human eye will pass through Optical Region, thereby Optical Region can provide suitable dioptric adjustment, to obtain the ophthalmic imaging effect of expecting.But in some cases, light can pass from the Optical Region periphery, and the phenomenon of " light leak " namely occurs.Do not pass through the dioptric adjustment of Optical Region due to the light of walking around Optical Region, the optical imagery abnormal that therefore eyes is obtained.
Typically, this area is all that the Optical Region of intraocular lens is set to border circular areas for a long time.In common situation, the diameter of circular optical zone is set to 5mm.But pupil diameter is sometimes greater than 5mm, and patient's self condition also there are differences, and therefore, when the optical area diameter of intraocular lens is slightly less than pupil diameter, the phenomenon of light leak can occur.
For the problems referred to above, the measure that routine is taked is that the radius of existing circular optical zone is enlarged, and, provides larger circular optical zone that is.Illustrate, the common processing mode in this area is to expand the diameter of the border circular areas of routine to for example 5.5mm or larger size by for example 5mm, thereby avoids dazzle to occur.
In addition, seeing also the application number of being submitted to by Bausch ﹠ Lomb Surgical Co on October 21st, 1999 is 99815402.4, publication number CN1342059A, the Chinese patent application that is entitled as " flexible intraocular lens ", wherein, disclosed a kind of intraocular lens, in order to reduce to be mapped to the dazzle that produces on the neighboring 30 of lens because of the illumination that enters eyes 10 under high light or in the situation such as pupil 58 is extended, can be in opticator 28 near 30 places, neighboring, form dazzles and reduce to be with 56, its width is approximately 0.25 to 0.75mm.Typically, dazzle reduces to make with the 56 use material identical with opticator 28.
Although above-mentioned improvement can improve light leakage phenomena, but, because need to make regional integration enlarged diameter with optical configuration, therefore, the Optical Region edge that increases may bring more mechanical irritation or injury to eye inner tissue, thereby may cause potential safety problem.
This area still wishes further to improve at present, to address the above problem.
The utility model content
Therefore, the purpose of this utility model is to provide a kind of improved intraocular lens, is used for avoiding glare phenomenon, and Avoids or reduces causes the stimulation of the opticator of intraocular lens to eyes because of corrective measure as far as possible simultaneously.
An aspect of the present utility model is, a kind of intraocular lens is provided, and it comprises optical bodies and supporter, this intraocular lens has front surface and rear surface, optical bodies has the substantially elliptical shape, and its major axis is arranged at horizontal direction, and minor axis is arranged at vertical direction.
The key of dealing with problems that the utility model proposes is, the circular optical bodies of routine employing is changed to oval optics body.In other words, only the horizontal size of optical bodies is increased.
Proposition of the present utility model is based on following observation and discovery: due to the effect of blocking of the upper palpebra inferior of eyes, in fact, light leak (generation of dazzle) can enter from the upper and lower sides of Optical Region hardly, in overwhelming majority situation, light leak (generation of dazzle) easily enters and walks around optical bodies from the both sides of eyes.Roughly keep original above-below direction size iff horizontal (left and right directions) size that increases optical bodies, can effectively overcome glare phenomenon.
Based on above-mentioned discovery, the utility model proposes new Optical Region design, can effectively address the above problem., by means of existing lens process technology, easily realize above-mentioned ellipse-shaped light school district design, thereby revise related die in order to process novel intraocular lens of the present utility model.
Other one side of the present utility model, the short-axis direction diameter of the optical bodies of preferred above-mentioned intraocular lens are that approximately 4.0mm is to about 6.5mm, and the diameter of long axis direction is that approximately 5.0mm is to about 7.0mm, and described short-axis direction diameter is less than described long axis direction diameter.
Preferred, the diameter of the short-axis direction of optical bodies is that approximately 4.5mm is to about 6.0mm, and the diameter of the described long axis direction of optical bodies is that approximately 5.5mm is to about 6.5mm, and this minor axis diameter is less than this major diameter.
Further, the oval diameter of the short-axis direction of optical bodies of the present utility model is about 5.0mm, the oval diameter of long axis direction be approximately 6.0mm to about 6.2mm.
In addition on the one hand, the design of the optical bodies of this utility model intraocular lens can be applied to the camera oculi anterior intraocular lens, and the intraocular lens of camera oculi posterior.For the camera oculi posterior lens, can be applied to crystal eye intraocular lens, also can be applied to aphakia intraocular lens (intraocular lens who is used for the crystal displacement).
Therefore, key of the present utility model has been to improve the Optical Region of traditional lamellar intraocular lens or the shape of optical bodies, changes round lens into oval lens.Optical bodies of the present utility model can be applied to polytype intraocular lens.
In addition, easily understand, so long as can realize that left and right directions is longer, above-below direction is shorter, and makes the Optical Region edge-smoothing transition of intraocular lens,, even be not strict elliptical shape, also can realize the improvement that the utility model proposes.
These and other objects and advantages of the present utility model, by accompanying drawing with hereinafter describe in detail, will be easier to understand.Similar unit or parts in accompanying drawing, adopt same or similar Reference numeral to indicate.Accompanying drawing and further instruction are in order to facilitate those skilled in the art to understand this utility model, and not form restriction of the present utility model.
Description of drawings
Below in conjunction with drawings and Examples, this utility model is further illustrated.
Fig. 1 is schematic cross sectional views, illustrates according to the crystal eye intraocular lens that has of this utility model the first embodiment and implants the camera oculi posterior position;
Fig. 2 is the cutaway view of intraocular lens shown in Figure 1;
Fig. 3 is the top view of intraocular lens shown in Figure 2;
Fig. 4 is the comparative example schematic diagram of with intraocular lens embodiment shown in Figure 3, comparing;
Fig. 5 is schematic cross sectional views, illustrates according to the crystal eye intraocular lens that has of this utility model the second embodiment and implants the camera oculi anterior position;
Fig. 6 is the top view of intraocular lens shown in Figure 5;
Fig. 7 is the comparative example schematic diagram of with intraocular lens embodiment shown in Figure 6, comparing;
Fig. 8 is the top view of intraocular lens, and the crystal displacement intraocular lens's (intraocular lens of aphakia) according to this utility model the 3rd embodiment is shown, and it is used for implanting the camera oculi posterior position to substitute natural lens;
Fig. 9 is the intraocular lens top view, and the crystal displacement intraocular lens's (intraocular lens of aphakia) according to this utility model the 4th embodiment is shown;
Figure 10 is the top view of intraocular lens, and the comparative example of with intraocular lens shown in Figure 8, comparing is shown;
Figure 11 is the top view of intraocular lens, and the comparative example of with intraocular lens shown in Figure 9, comparing is shown;
Figure 12 illustrates the top view according to a kind of intraocular lens of the present utility model; And
Figure 13 illustrates typical eyeball sectional drawing.
The specific embodiment
Although for the sake of clarity used in the following description particular term, these terms only relate to the ad hoc structure for the selected embodiment of explanation accompanying drawing, not should be understood to for limiting or limit scope of the present utility model., at accompanying drawing with in hereinafter describing, be appreciated that same Reference numeral refers to same functional unit.
The modifier that is combined with quantity " approximately " comprises listed numerical value and has implication (for example, it comprises the degree of error relevant to the measurement of specific quantity at least) by the context appointment.
[definition of Essential Terms]
, in order conveniently to understand this utility model, at first following term is provided and explains or definition:
Natural lens: refer to the natural lens in mankind's (or extensively referring to mammal) eyes.The natural lens outside is surrounded by the elastic membrane vesicle of one deck, also claims pouch.Mention in this utility model on the natural lens surface, refer on the membrane vesicle of natural lens front surface.Natural lens is transparent and can regulate focusing power, and it can make closely the object of (or far) distance drop on imaging on retina.Since 40 years old, this adjusting focusing power of most people fell into a decline, and started to completely lose this adjusting focusing power to about 50 years old, Here it is our said presbyopia.
The said intraocular lens of this utility model, also claim intra ocular diopter lens, dioptric lens, refer to: 1) implant the mankind's (or general reference mammal) ophthalmic and natural lens and have simultaneously and work simultaneously to correct the optical glass of vision refractive error, also referred to as " intraocular lens that the crystal eye is arranged "; And 2) implant ophthalmic to substitute the crystal displacement intraocular lens of natural lens,, also referred to as " intraocular lens of aphakia ", be used for for example treating cataract.Intraocular lens is comprised of an optical bodies and supporter.
Optical bodies: referring to the center ingredient of intra ocular diopter lens, can be biconvex mirror, biconcave mirror, concave mirror after front recessed rear convex lens or lordosis.Optical bodies is used for making incident beam to gather on retina, and its diopter D commonly used represents.As ,-1D is exactly myopia 100 degree of often saying, and+1D is exactly hypermetropia 100 degree of often saying.
Supporter: also claim " button loop section ", it directly is connected with optical bodies, and the function that it does not provide dioptric to adjust, but regional for bearing optical is used for support of optical body desired center position in eye.Implant the intraocular lens of back room, after its Optical Region is positioned at pupil, and supporter is positioned at the iris rear surface.
Cornea: the curved face type tissue of eyes transparent front.
Iris: the annular pigmented film of facies posterior corneae, central authorities are pupil.
Ciliary zonule: or be called for short small band, refer to be bonded at ciliary zonule around the natural lens equator.Also claim corpus ciliare.
Pupil (pupil): be the round defect of iris central part, can fall apart large and dwindle, with light regulating, enter what of eyeball.
Camera oculi anterior: the locus between cornea and iris.
Camera oculi posterior: general reference is positioned at the locus of facies posterior iridis.Describe the aqueous humor circulation time, often referring to be located at the locus of facies posterior iridis and natural lens front.Iris neither belongs to the anterior chamber, does not belong to again back room, but as the boundary of distinguishing forward and backward room.
Pocket knife otch: cataract operation surgeon Essential Terms.Refer generally on cornea or the about otch of 3 millimeters long of edge slit, one approximately the intraocular lens of 6 mm dias can implant this otch after folding.This operation in the ordinary course of things, does not need suture, and wound can spontaneous recovery.
The explanation of describing about direction: the horizontal direction of mentioning herein, laterally or left and right directions, refer to the left and right directions of eyes or human eye, the above-below direction of mentioning in literary composition, refer to the above-below direction of eyes or human eye.
Below, further describing the technical solution of the utility model with reference to accompanying drawing, it is to form in order to help to understand the disclosed device of this paper that accompanying drawing is provided, more completely to understand this utility model.It is only for convenience of description that accompanying drawing is provided, and accompanying drawing is all indicative icon, therefore, is not intended the scope of relative size and size and/or restriction or the restriction embodiment of indicating device or its building block.
Understand for convenience this utility model, at this, provide accompanying drawing 13, it illustrates typical eyeball sectional drawing.
Simply introduce eye structure with reference to accompanying drawing 13.The eye-chamber comprises anterior chamber 100, back room 110 and vitreous chamber 121 (wherein holding vitreous body 120).Anterior chamber (anterior chamber) 100, after being positioned at cornea 130, before the lesser ring of Merkel of iris 140 and crystalline lens 150, its periphery, by the angle that limbus of corneae 160, corpus ciliare 170 and iris root form jointly, is called angle of anterior chamber 280, is the key position of aqueous humor circulation.
Back room (posterior chamber) 110, the gap after being positioned at iris 140 and pupil 180, before crystalline lens 150 and Suspensory ligament and ciliary processes.
In addition, also show some primary structures of eye in Figure 13, comprising: sclera 190, choroid 200, retina 210, Cloquct pipe 220, depending on nipple 230, optic nerve 240, cribriform plate of sclera 250, macula lutea fovea centralis 260, ora serrata 270, optical axis C, optical axis B, how much equator X1, and dissect equator X2.
Although the intraocular lens ratio is easier to implant camera oculi anterior,, adopt the posterior chamber intraocular lens to implant and more easily keep suitable physiological location, also can avoid the long term complication of anterior chamber intraocular lens.
, about intraocular lens being placed in the scheme of camera oculi posterior, generally include following two kinds of situations: 1) do not extract the natural lens in pouch, intraocular lens is placed in the combined effect of natural lens front side adjusts the diopter of eye; 2) extract natural lens, and insert intraocular lens, thereby with the intraocular lens, substitute original natural lens, for example in the cataractous operation for the treatment of.
The purpose of this utility model is to improve the structure of existing intraocular lens itself, more specifically, changes the global shape of intraocular lens optical bodies, in other words the shape of whole profile.
See also accompanying drawing 1-12, show the schematic diagram of intraocular lens embodiment of the present utility model, and the schematic diagram of corresponding comparative example.
The intraocular lens 10 that this utility model relates to comprises the optical bodies 30 that is arranged in intraocular lens 10 middle parts and is arranged in around optical bodies 30 supporter 20 that is used for bearing optical body 30.
Key of the present utility model is to change the profile configuration of the Optical Region integral body of intraocular lens 10.Particularly, this utility model has changed this area and for a long time Optical Region has been designed to circular intrinsic thinking, but Optical Region is set to elliptical configuration, take this only to have enlarged the left and right directions size of intraocular lens, after implanting ophthalmic, can effectively avoid from the light leak of intraocular lens left and right directions.
This utility model does not wish specifically to limit the material of intraocular lens, and the camera oculi posterior lens that existing multiple different materials is made all can improve according to this utility model.Be more preferably the material that has elasticity and shape-memory properties, is elastic stage in the serviceability temperature scope in this class material, include but is not limited to soft polypropylene esters of gallic acid, silicone rubber kinds, gel-like and other macromolecule soft materials.
The example that can be used for producing the polymer of intraocular lens of the present utility model also can know from following patent documentation, described patent documentation is: August calendar year 2001 the people such as disclosed Liao on the 7th United States Patent (USP) 6,271,281; August in 2002 people such as disclosed Nanushyan on the 13rd United States Patent (USP) 6,432,137; August in 2004 people such as disclosed Liao on the 24th United States Patent (USP) 6,780,899; January in 2004 people such as disclosed Zhou on the 20th United States Patent (USP) 6,679,605; And August nineteen ninety-five the people such as disclosed Zhou on the 22nd United States Patent (USP) 5,444,106, all these patent documentations all are incorporated herein by reference.These examples all are obtained from the polymer of organic silica gel class and acrylic compounds.The example of the hydrophobic polymer that other is available comprises polyolefin, for example has SB and the styrene-isoprene copolymer of flexible elastomeric polymer networks.
Embodiment
Below, with reference to the architecture advances of embodiment specific descriptions according to intraocular lens of the present utility model.
The first embodiment
See also accompanying drawing 1-3, the present embodiment is a kind of intraocular lens of implanting the camera oculi posterior position.Fig. 1 is schematic cross sectional views, illustrates according to the intraocular lens that the crystal eye is arranged of this utility model the first embodiment and is implanted in the camera oculi posterior position; Fig. 2 is the cutaway view of the present embodiment intraocular lens; Fig. 3 is the top view of the present embodiment intraocular lens shown in Figure 2.
As shown in Figure 1, the intraocular lens of the present embodiment 10 is implanted the camera oculi posterior positions, particularly, between the front surface of the rear surface of iris 140 and natural lens 150, makes the rear surface of the front surface of intraocular lens 10 and iris 140 adjacent.
As shown in Figure 2 and Figure 3, the intraocular lens 10 in the present embodiment comprises optical bodies 30 and the supporter 20 that is arranged in intraocular lens 10 middle parts, and supporter 20 is used for bearing optical body 30 around being arranged in optical bodies 30.
As shown in Figure 3, optical bodies 30 is ellipticity in the present embodiment, and its minor axis is arranged at vertical direction, the short-axis direction diameter is about 5mm, and its major axis is arranged at horizontal direction, the long axis direction diameter is about 6.0mm, and the intersection point of long axis direction and short-axis direction represents with " O ".The width W of supporter 20 can, for the about 6.2mm of about 6mm-, be about 6mm in the present embodiment; In addition, the length longest dimension L of supporter 20 can be 10.6mm to 11.5mm, is about in the present embodiment 11.3mm.Intraocular lens in embodiment 1 adopts flexible material, from PC-PRL (the crystal camera oculi posterior dioptric crystal is arranged) material of Hangzhou Baikang Medical Technology Co., Ltd.'s production.The proportion of this material is consistent with aqueous humor proportion, and the intraocular lens of making can be realized the centering that suspends within the eye, that is, be " 0 " weight within the eye, and " 0 " mechanical friction is kept its within the eye stable thereby can not rely on to support.
See also accompanying drawing 4, a kind of comparative example be shown, its be a kind of routine lens 10 ', its structure and purposes and this utility model lens are very approaching, difference be to adopt the circular optical zone 30 that conventional diameter evenly increases ', namely, its diameter is for being about 6.0mm, and the center of circle represents with O '.
Contrast by the first embodiment shown in Figure 3 and comparative example shown in Figure 4 can find out, in order to reach the purpose of avoiding light leak, conventional lenses is with the whole enlarged diameter of Optical Region, and this utility model has only increased the left and right directions size of Optical Region.
The second embodiment
See also Fig. 5 and Fig. 6, this utility model the second embodiment is a kind of intraocular lens of implanting the camera oculi anterior position.Fig. 5 is schematic cross sectional views, illustrates the intraocular lens that the crystal eye is arranged according to this utility model the second embodiment is implanted the camera oculi anterior position; Fig. 6 is the top view of the present embodiment intraocular lens shown in Figure 5.
As shown in Figure 5, the intraocular lens 10 of the present embodiment is implanted the camera oculi anterior position, and particularly, intraocular lens 10 is positioned at iris 140 the place aheads, the front surface of the rear surface of intraocular lens 10 and iris 140 is adjacent, and the rear surface of the front surface of intraocular lens 10 and cornea 130 is adjacent.By this, intraocular lens 10 exists also combined effect that the vision dioptric is provided with natural lens 150 simultaneously.
The present embodiment and the first embodiment difference be, intraocular lens 10 is arranged in camera oculi anterior rather than camera oculi posterior, thereby the structure of supporter 20 is different, and in the present embodiment, supporter 20 is the lower limb shape.
Embodiment 2 can adopt the material identical or different with embodiment 1, and concrete material is selected easily to know for a person skilled in the art.
See also accompanying drawing 7, a kind of comparative example is shown, it is a kind of intraocular lens of routine, and its structure and purposes and the present embodiment lens are very approaching, and difference is the circular optical zone that adopts conventional diameter evenly to increase.In order to reach the purpose of avoiding light leak, in conventional intraocular lens, the diameter of Optical Region for example is about 6.0mm.
The 3rd embodiment
This utility model the 3rd embodiment relates to crystal displacement intraocular lens's (intraocular lens of aphakia), extract natural lens from lens capsule bag, the crystalline lens of the present embodiment is implanted in the camera oculi posterior lens capsule bag,, in order to substitute natural lens, be used for for example treating cataract.
Intraocular lens's shown in Figure 8 schematic plan.Intraocular lens in this 3rd embodiment comprises optical bodies 30 and the supporter 20 that is arranged in the intraocular lens middle part, and supporter 20 is used for the bearing optical body around being arranged in optical bodies.
Embodiment 3 can adopt the material identical or different with embodiment 1, and concrete material is selected easily to know for a person skilled in the art.
See also accompanying drawing 10, a kind of comparative example is shown, it is a kind of intraocular lens of routine, and its structure and purposes and the present embodiment intraocular lens are very approaching, and difference is that its Optical Region is circle in top view.
The 4th embodiment
See also Fig. 9, it is that the top view that changes the crystal displacement intraocular lens (intraocular lens of aphakia) of example according to this utility model the 4th embodiment is shown.The difference that changes example and the 3rd embodiment shown in Figure 8 shown in Figure 9 is quantity and the position of shank (supporter) 20.Figure 11 illustrates the comparative example of with intraocular lens shown in Figure 9, comparing, and Optical Region wherein is circular.
What more than enumerate is only specific embodiment of the utility model and corresponding comparative example.Obviously, the specific embodiment that this utility model is not limited to provide, but many variation examples can also be arranged.
Key of the present utility model is the design of Optical Region, applicable to shape, size and the quantity of multiple supporter (shank).Formed by 2 shanks as supporter in the 4th the present embodiment, and in the 3rd embodiment, supporter consists of 3 shanks.
For example, although accompanying drawing shows the optical bodies into the concavees lens structure,, optical bodies also can be convex lens.The refraction structure of lens depends on concrete application.For example, Figure 12 illustrates the top view according to concave lens type intraocular lens of the present utility model, can see that wherein the edge of Optical Region 30 has thicker section, and the thickness of Optical Region (its protruding height to front surface) can be for example about 0.50mm.Owing to having adopted the ellipse-shaped light school district,, for dazzle or light leakage phenomena, can take more selection to be avoided, and need not only to adopt the circular optical zone of larger diameter, also can omit and adopt dazzle to reduce band.
Therefore, for other possible variation examples not in this detailed description.All distortion that those of ordinary skill in the art can directly derive or associate from the disclosed content of this utility model, all should think protection domain of the present utility model.This utility model is defined by the following claims.
Claims (5)
1. intraocular lens, it comprises optical bodies and supporter, described intraocular lens has front surface and rear surface, wherein,
Described optical bodies has elliptical shape, and its major axis is arranged at horizontal direction, and minor axis is arranged at vertical direction.
2. intraocular lens according to claim 1, wherein,
The described short-axis direction diameter of described optical bodies is 4.0mm to 6.5mm, and the diameter of described long axis direction is 5.0mm to 7.0mm, and described short-axis direction diameter is less than described long axis direction diameter.
3. intraocular lens according to claim 2, wherein,
The diameter of the described short-axis direction of described optical bodies is 4.5mm to 6.0mm, and the diameter of the described long axis direction of described optical bodies is 5.5mm to 6.5mm, and described minor axis diameter is less than described major diameter.
4. intraocular lens according to claim 3, wherein, the diameter of the described short-axis direction of described optical bodies is 5mm, the diameter of described long axis direction is 6.0mm to 6.2mm.
5. the described intraocular lens of any one claim according to claim 1-4, it adopts the proportion flexible material consistent with aqueous humor proportion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200192801U CN203280538U (en) | 2013-01-14 | 2013-01-14 | Intraocular lens |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200192801U CN203280538U (en) | 2013-01-14 | 2013-01-14 | Intraocular lens |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103040544A (en) * | 2013-01-14 | 2013-04-17 | 杭州百康医用技术有限公司 | Intraocular lens |
| CN104546223A (en) * | 2014-12-16 | 2015-04-29 | 华南理工大学 | Super-hydrophobic posterior chamber intraocular lens with microstructures on surface and preparing method thereof |
-
2013
- 2013-01-14 CN CN2013200192801U patent/CN203280538U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103040544A (en) * | 2013-01-14 | 2013-04-17 | 杭州百康医用技术有限公司 | Intraocular lens |
| WO2014108101A1 (en) * | 2013-01-14 | 2014-07-17 | Wang Qingyang | Intraocular lens |
| CN104546223A (en) * | 2014-12-16 | 2015-04-29 | 华南理工大学 | Super-hydrophobic posterior chamber intraocular lens with microstructures on surface and preparing method thereof |
| CN104546223B (en) * | 2014-12-16 | 2016-08-24 | 华南理工大学 | Surface super-hydrophobic posterior chamber intraocular lens with micro structure and preparation method thereof |
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| GR01 | Patent grant | ||
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| TR01 | Transfer of patent right |
Effective date of registration: 20131126 Address after: 310012 purple garden 28-3-802, No. two West 268, Wen Wen Road, Hangzhou, Zhejiang, Xihu District Patentee after: Wang Qingyang Address before: 310013, Zhejiang, Xihu District, Hangzhou Tian Shan Road, No. 4, 398, 2 Patentee before: Hangzhou Baikang Medical Technology Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131113 Termination date: 20180114 |