CN204655193U - Replaceable multicompartment multifunction manual intraocular lens system - Google Patents
Replaceable multicompartment multifunction manual intraocular lens system Download PDFInfo
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- CN204655193U CN204655193U CN201520148300.4U CN201520148300U CN204655193U CN 204655193 U CN204655193 U CN 204655193U CN 201520148300 U CN201520148300 U CN 201520148300U CN 204655193 U CN204655193 U CN 204655193U
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Abstract
This utility model provides a kind of replaceable multicompartment multifunction manual intraocular lens system, and it comprises a base lens assembly and at least one interchangeable function lens subassembly, realizes connecting and fixing between each assembly by snap-in structure.The major function of base lens assembly is to support whole intraocular lens system, and function lens subassembly then can possess myopia correction, hypermetropia, astigmatism, improves night vision, corrects high-order aberration, function such as treatment macular degeneration or beauty and shaping etc.
Description
Technical field
This utility model relates to intraocular lens, specifically, relates to replaceable multicompartment multifunction manual intraocular lens system.
Background technology
Intraocular lens (IOL) implantation, through the development of over half a century, has become the conventional means of the lens disorder such as treatment cataract.Remove Phakic eye by the means such as ECCE or phacoemulsification, and then implant the IOL that can substitute Phakic eye dioptric function, make patient recapture vision.Along with the continuous progress of cataract surgery and IOL manufacturing technology, more and more higher requirement be it is also proposed to the therapeutic effect of IOL implantation, recapture vision from initial being only limitted to, develop into gradually and wish to obtain vision better more comprehensively, or even youthful vision level of getting well.
In fact, IOL implantation is difficult to reach point-device therapeutic effect.Before performing the operation, generally need carry out optical measurement to the trouble eye of patient, comprehensive assessment also calculates, implant again after selecting applicable IOL kind and optical parametric thereof, thus ensure patient obtain accurate vision restoration effect (dioptric effect degree of accuracy need reach ± 0.25D within).The performance accuracy of ophthalmologist is very high, can be less than 0.1 millimeter, but nonetheless, and the degree of accuracy of single operation also can only reach ± 0.75D to ± 1D, cannot reach ± 0.25D within requirement.Cause the reason of this gap except performance accuracy is difficult to reach, the operative incision of soft IOL also comprises some more chief reasons: although can reach 3 millimeters even less, the operating process of operation still more or less can cause the damage of some art source property to eye, such as art source property astigmatism etc., cause operation cannot reach expection degree of accuracy; Some optical disorders constantly can increase the weight of along with the development of the state of an illness, and the IOL implanted before making no longer meets precise requirements, needs to change.In addition, some IOL implant also may go wrong after life-time service, such as hydrophilic IOL is easier to be polluted and loss of function by ophthalmic metabolite, may be there is the equivalent damage that weares and teares in the precision optics structure of multifocal IOL, at this moment equally also need to change IOL after long-time use.
The IOL caused for various reasons bis-implantation are often implanted more difficult than first.This is mainly because in back room embedded type IOL after the implantation 1 to 2 year, and its fixing haptics can gradually by tissue encapsulation, therefore IOL remove the damage that can cause back room tissue, and cause that neo-implanted IOL is more difficult to be fixed.The fixed IOL of anterior chamber iris can run into Similar Problems equally, causes location difficulty.If adopt replaceable IOL system, when needed its optical module is replaced, namely or postoperatively can to adjust therapeutic effect in art, thus meet the requirement of pinpoint accuracy, damage not caused to back room tissue simultaneously.
Utility model content
(1) technical problem that will solve
The purpose of this utility model is to provide a kind of replaceable multicompartment multifunction manual intraocular lens system, solves conventional intraocular lens and causes the problem that tissue injury, therapeutic effect are poor, can not meet pinpoint accuracy when replacing.
(2) technical scheme
In order to solve the problems of the technologies described above, this utility model provides a kind of replaceable multicompartment multifunction manual intraocular lens system, it comprises a base lens assembly and at least one interchangeable function lens subassembly, realizes connecting and fixing between each assembly by snap-in structure and/or binding agent.
Term definition:
The term " base lens assembly " used in this application refers to the lens subassembly for supporting whole intraocular lens system, as shown in label in Fig. 11.
The term " function lens subassembly " used in this application refers to the lens subassembly possessing the functions such as astigmatism correction, blue light filtration or multifocal be attached on base lens assembly, as shown in label in Fig. 12.
The term " snap-in structure " used in this application refers to the structure for connecting above-mentioned each lens subassembly, as shown in label in Fig. 13 and 4.
Pattern and the conventional interocular lens of described base lens assembly are similar, with fixture (button loop), so that at back room internal fixtion.
The kind of described function lens subassembly and quantity can be matched according to different demand, such as, in the assemblies such as aspherical components of can arranging in pairs or groups, astigmatism correction assembly, blue light filter assemblies, multifocal assembly one or more.
Described snap-in structure is located at the edge of base lens assembly and/or function lens subassembly, and described snap-in structure is buckle and/or draw-in groove, and buckle and draw-in groove cooperatively interact fixing.
Fig. 1 gives the intraocular lens system snap-in structure schematic diagram of two assemblies.Wherein, the buckle on function lens subassembly outwardly 0.5 to 5 millimeter is 150 degree to 180 degree angles with lens plane, is preferably 180 degree (namely parallel), so that snap-action; The draw-in groove that base lens assembly matches is given prominence to forward relative to the plane of lens subassembly, becomes 45 ~ 135 degree of angles, preferred an angle of 90 degrees with the plane of lens subassembly, is not only convenient to fixing but also can effectively prevents from coming off.
Draw-in groove shape can be trapezoidal, rectangle, C shape, L shape, ellipse, parallelogram etc., preferably trapezoidal, C shape or L shape; Buckle shape can be trapezoidal, rectangle, triangle, half elliptic, zigzag etc., preferably trapezoidal.Fig. 2 gives the example of several snap-in structure.
In a detailed description of the invention of the present utility model, described buckle is trapezoidal, and draw-in groove is L shape.
Similarly, this snap-in structure can be extended to the intraocular lens system containing multiple assembly, make function lens subassembly simultaneously with draw-in groove like base lens component class, and then mate other function lens subassemblies.
Further, the process such as polishing can be carried out to buckle, or add suitable binding agent described draw-in groove and buckle are bonded by binding agent, strengthen connection and the fixed effect of function lens subassembly and base lens assembly.
The material of described function lens subassembly can select the soft polymer material of any suitable, and include but not limited to hydrophilic polyacrylic ester, hydrophobic polyacrylate, Silica hydrogel, collagen protein etc., the different assemblies in same IOL system can select unlike material.
Function lens subassembly does not comprise button loop structure, and its center area thickness is 0.1 to 0.4 millimeter, main body portion diameter 4 to 8.5 millimeters, is preferably 5.5 to 7 millimeters, central optical zone diameter 3 to 7 millimeters, is preferably 5.5 millimeters.
Further, described function lens subassembly also can with telltale mark.
Further, described function lens subassembly can bag medicine carrying thing.
Structure and the conventional IOL of described base lens assembly are similar, comprise lens body and fixture:
Described lens body diameter can within the scope of 4 to 8 millimeters, and be preferably 5.5 to 6.5 millimeters, central optical zone diameter is 3 to 7 millimeters, are preferably 5.5 millimeters.
Described fixture is one or more button loop, is preferably two.Button loop shape can be C type, L-type, J type, closed ring-like and other types, and span 5 to 15 millimeters, is preferably 12 to 13 millimeters; Button loop angle 5 to 20 is spent, and is preferably 10 to 15 degree.
The material of described base lens assembly can be the soft polymer material of any suitable, includes but not limited to hydrophilic polyacrylic ester, hydrophobic polyacrylate, Silica hydrogel, collagen protein etc., is preferably hydrophobic polyacrylate.
In addition, in base lens assembly, also can add ultraviolet absorber, blue-light absorbers (weld) etc., to increase ultraviolet and blue light filtering function, or reduce dazzle; Also can carry out surface treatment to lens, such as surface PEG, heparinization etc., to reach surface passivation effect, improve the biocompatibility of lens.
In operation process:
During the described intraocular lens system of first implantation, need to assemble all selected function lens subassemblies in advance in vitro, be fitted together to by positioners such as draw-in grooves, after operation starts, first soft base lens assembly is implanted, then implant after folding for the function lens subassembly assembled in advance, and then by itself and base lens component chimeric.Without the need to seeing draw-in groove clearly when doctor operates, complete the chimeric of each site one by one by rotation and slide.Whole operation process can be completed by the otch of less than 3 millimeters.
When changing function lens subassembly, first need to peel off existing capability lens subassembly, specific practice for injecting viscoelastic medium between base lens assembly and function lens subassembly, makes function lens subassembly float, then by rotating or slide it to be deviate from from draw-in groove.After taking out old function lens subassembly, again implant the function lens subassembly of replacement according to above-mentioned operation method.
(3) beneficial effect
The replaceable multicompartment multifunction manual intraocular lens system that this utility model provides, the major function of base lens assembly is to support whole intraocular lens system, and function lens subassembly then must possess all kinds of difference in functionality.The optical design of function lens subassembly can be sphere, aspheric surface, multifocal, astigmatism correction, telescopic lenses etc. polytype, to make function lens subassembly, there is myopia correction, hypermetropia, astigmatism, improve night vision, correct high-order aberration, treatment macular degeneration, the functions such as beauty and shaping.In addition, function lens subassembly can bag medicine carrying thing, and by changing this medicine carrying assembly to extend drug release time, the eye chronic diseases such as treatment glaucoma, diabetic ophthalmopathy, macular degeneration, compared with routine medication, have better patient compliance.With base lens component class seemingly, also can add ultraviolet absorber, blue-light absorbers (weld) etc. in function lens subassembly, to increase ultraviolet and blue light filtering function, or reduce dazzle; Also can carry out surface treatment to lens, such as surface PEG, heparinization etc., to reach surface passivation effect, improve the biocompatibility of lens.
The advantage of the replaceable multicompartment multifunction manual intraocular lens system that this utility model provides is:
1) can need according to different patient the collocation carrying out difference in functionality lens subassembly, to obtain comprehensive comprehensively therapeutic effect; 2) even postoperative in art function lens subassembly can be added and subtracted or changed, conveniently adjust therapeutic effect at any time, thus reach higher treatment precision; 3) for needing the patient carrying out secondary implantation, base lens assembly can be retained, only need change repertoire lens subassembly, thus improve procedure efficiency, it also avoid the damage to back room.
Accompanying drawing explanation
Fig. 1 is replaceable multicompartment multifunction manual crystalline lens two component system assembling schematic diagram described in the utility model, for trapezoidal draw-in groove and trapezoidal buckle;
Fig. 2 is different engaging structural representation in replaceable multicompartment multifunction manual intraocular lens system described in the utility model;
Fig. 3 is replaceable multicompartment multifunction manual crystalline lens three component system assembling schematic diagram described in the utility model, for trapezoidal draw-in groove and trapezoidal buckle;
In figure, 1: base lens assembly; 2: function lens subassembly; 3: draw-in groove; 4: buckle.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, be clearly and completely described the technical scheme in this utility model embodiment, obviously, described embodiment is only this utility model part embodiment, instead of whole embodiments.Based on the embodiment in this utility model, the every other embodiment that those of ordinary skill in the art obtain under the prerequisite of not making creative work, all belongs to the scope of this utility model protection.
Embodiment 1
As shown in Figure 1, the replaceable multicompartment multifunction manual intraocular lens system described in the present embodiment comprises a base lens assembly 1 and an interchangeable function lens subassembly 2, is connected between assembly by snap-in structure (draw-in groove and buckle).
Described draw-in groove 3 is located at the edge of base lens assembly 1, becomes an angle of 90 degrees (vertical) with the plane of lens subassembly, and draw-in groove is trapezoidal.
Described buckle 4 is located at the edge of function lens subassembly 2, and become 180 degree of angles (parallel) with the plane of lens subassembly, buckle is trapezoidal, outwardly 2 millimeters.
The material of described base lens assembly 1 is hydrophobic polyacrylate, comprises lens body and two fixing haptics, and button loop shape is C type, and span is 12 millimeters, and button loop angle is 10 degree.Lens body diameter is 8 millimeters, and central optical zone diameter is 5.5 millimeters.
The material of described function lens subassembly 2 is Silica hydrogel, and its center area thickness is 0.3 millimeter, and main body portion diameter is 6.5 millimeters, and central optical zone diameter is 5.5 millimeters.Described function lens subassembly 2 is blue light filter assemblies, and its function enters ophthalmic for stoping blue light, thus protection retina does not produce pathological changes.
Embodiment 2
The present embodiment is compared with embodiment 1, and distinctive points is that the number of function lens subassembly is 2, is connected, as shown in Figure 3 between function lens subassembly by identical snap-in structure.
Embodiment 3
The present embodiment is compared with embodiment 1, and distinctive points is:
1, described draw-in groove 3 and buckle 4 are bonded by binding agent, strengthen the connection between lens subassembly and fixed effect.
2, described draw-in groove 3 is L shape, assembly operation of being more convenient for.
3, described function lens subassembly 2 material is hydrophobic polyacrylate.
4, described function lens subassembly 2 is with telltale mark, is specially the coloured label be positioned near buckle part beyond central optic portion.
5, described function lens subassembly 2 is multifocal assembly, and its function can be patient and provides long-range and near vision clearly simultaneously.
Embodiment 4
The present embodiment is compared with embodiment 1, and distinctive points is: described function lens subassembly 2 bag is loaded with non-sterols anti-inflammatory drug, can slow release within the eye, and effectively the generation of opposing post-operation inflammatory, improves patient compliance.
Embodiment 5
The present embodiment is compared with embodiment 1, and distinctive points is:
Add ultraviolet absorber, blue-light absorbers (weld) in described base lens assembly 1, to increase ultraviolet and blue light filtering function, or reduce dazzle.And surface PEG, heparinization process are carried out to lens, reach surface passivation effect, improve the biocompatibility of lens.
The above; be only detailed description of the invention of the present utility model; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that this utility model discloses; the change that can expect easily or replacement, all should be encompassed within protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of described claim.
Claims (10)
1. a replaceable multicompartment multifunction manual intraocular lens system, is characterized in that, it comprises a base lens assembly and at least one interchangeable function lens subassembly, realizes connecting and fixing between each assembly by snap-in structure and/or binding agent.
2. intraocular lens system according to claim 1, is characterized in that, described snap-in structure is located at the edge of base lens assembly and/or function lens subassembly, and described snap-in structure is buckle and/or draw-in groove.
3. intraocular lens system according to claim 2, is characterized in that, described buckle becomes 150 degree ~ 180 degree angles with the plane of lens subassembly, described draw-in groove becomes 45 ~ 135 degree of angles with the plane of lens subassembly.
4. intraocular lens system according to claim 3, is characterized in that, described buckle becomes 180 jiaos with the plane of lens subassembly, and described draw-in groove becomes an angle of 90 degrees with the plane of lens subassembly.
5. intraocular lens system according to claim 2, is characterized in that, described buckle is trapezoidal, and draw-in groove is trapezoidal, C shape or L shape.
6. the intraocular lens system according to claim 1-5 any one, is characterized in that, described draw-in groove and buckle are bonded by binding agent.
7. intraocular lens system according to claim 6, is characterized in that, described function lens subassembly is with telltale mark.
8. intraocular lens system according to claim 7, is characterized in that, described function lens subassembly can bag medicine carrying thing.
9. intraocular lens system according to claim 8, is characterized in that, described base lens assembly comprises lens body and fixture.
10. intraocular lens system according to claim 9, is characterized in that, described fixture is button loop, and the number of button loop is 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520148300.4U CN204655193U (en) | 2015-03-16 | 2015-03-16 | Replaceable multicompartment multifunction manual intraocular lens system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520148300.4U CN204655193U (en) | 2015-03-16 | 2015-03-16 | Replaceable multicompartment multifunction manual intraocular lens system |
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| CN204655193U true CN204655193U (en) | 2015-09-23 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104720933A (en) * | 2015-03-16 | 2015-06-24 | 北京艾克伦医疗科技有限公司 | Replaceable and multifunctional multi-assembly artificial lens system |
| RU2688016C1 (en) * | 2018-08-30 | 2019-05-17 | федеральное государственное автономное учреждение "Национальный медицинский исследовательский центр "Межотраслевой научно-технический комплекс "Микрохирургия глаза" имени академика С.Н. Федорова" Министерства здравоохранения Российской Федерации | Method for correction of myopia of high degree and complex myopic astigmatism in patients with thin cornea |
-
2015
- 2015-03-16 CN CN201520148300.4U patent/CN204655193U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104720933A (en) * | 2015-03-16 | 2015-06-24 | 北京艾克伦医疗科技有限公司 | Replaceable and multifunctional multi-assembly artificial lens system |
| RU2688016C1 (en) * | 2018-08-30 | 2019-05-17 | федеральное государственное автономное учреждение "Национальный медицинский исследовательский центр "Межотраслевой научно-технический комплекс "Микрохирургия глаза" имени академика С.Н. Федорова" Министерства здравоохранения Российской Федерации | Method for correction of myopia of high degree and complex myopic astigmatism in patients with thin cornea |
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