CN204698755U - A kind of artificial iris fixing intraocular lens - Google Patents
A kind of artificial iris fixing intraocular lens Download PDFInfo
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- CN204698755U CN204698755U CN201520318940.5U CN201520318940U CN204698755U CN 204698755 U CN204698755 U CN 204698755U CN 201520318940 U CN201520318940 U CN 201520318940U CN 204698755 U CN204698755 U CN 204698755U
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Abstract
This utility model provides a kind of artificial iris fixing intraocular lens, comprise artificial iris every, the fixing button loop of artificial iris and the fixed structure of fixing intraocular lens, utilize the bulge-structure of artificial iris self, can scleral walls be passed and be fixed on flexibly in scleral walls, thus the operation avoiding suture fixing, perform the operation simple, iris is not only made to keep stable within the eye, and do not need suture to fix when implanting, its viscoelasticity makes again iris easily via minimal incision *, and can not cause damage.The artificial iris that this utility model provides also has the fixed structure of fixing intraocular lens, for the cataract patient that pouch is impaired, can easily intraocular lens be fixed on iris.
Description
Technical field
This utility model relates to field of medical equipment, particularly relates to a kind of artificial iris fixing intraocular lens.
Background technology
Iris belongs to eyeball middle level, in corpus ciliare front, has the size automatically regulating pupil, and playing adjustment, to enter ophthalmic light how many.As a kind of biologic soft tissue material, iris has the viscous-elastic behaviours such as delayed, lax, creep, strain rate dependency.
The important mechanical characteristic of iris makes it work as ocular injury or eye congenital anomaly when causing aniridia or coloboma of iris, often there is the dysfunction of eyeball, as the increase of spherical aberration, aberration, low visual acuity after diplopia, dazzle, photophobia, amblyopia and wound, and visual acuity reduction etc.
Because the iris of atrophy does not make it regeneration by means such as medicines at present, the means of operation can only be adopted to repair.Conventional modus operandi has iris suture and artificial iris to implant.Iris suture is the elasticity of the normal iris tissue utilizing patient remaining, and being stretched by iris tissue is stitched together, and plays the effect of certain control light and restriction aberration.
Best Therapeutic Method replaces with artificial iris, and it is utilize the material of synthetic to carry out part replace or all replace iris that artificial iris is implanted.But also there is no the synthetic material that can replace iris completely at present, current product is all be with an iris diaphragm on rigid intraocular lens, material is polymethyl methacrylate, need larger operative incision, incision size is at about 10mm, implantation process more complicated, surgical effect and popularization are restricted.Desirable artificial iris material should have the characteristic similar to iris, has the viscous-elastic behaviours such as delayed, lax, creep, strain rate dependency.
At present, the major way that ophthalmic fixes artificial implantation has suture fixed form and button loop supporting way.
Suture fixed form is fixed by bundle of lines artificial implantation through after tissue by suture, ophthalmic limited space, and stitching overlap joint is within the eye very difficult, and operation technique difficulty is large, and surgical effect is limited.
Button loop supporting way is in the space that a limitation is closed, button loop is used to withstand the end of enclosed space, play a supporting role, this modus operandi is simple, easy to operate, the pouch internal fixtion of such as intraocular lens, but the limitation of the method is to perform the operation in the space closed, and be not suitable for the fixing of the artificial iris at the place such as angle of anterior chamber or ciliary groove.
Existing artificial iris operation is fixed on remaining iris or iris root in sutural mode usually, or in ciliary groove, which needs to carry out complicated suture and knotting operation in space narrow, closed within the eye, and operating difficulty is large, limits carrying out of operation.The patient of numerous coloboma of iris is made to can not get effective treatment.
In addition, because pathological changes and wound cause the patient of iris injury, often occur together lenticular disease or wound, not only there will be cataract, also may, with the pathological changes of crystal pouch or damage, the fixing difficulty of intraocular lens be increased.
Therefore, a kind of artificial iris fixing intraocular lens of special needs, to solve above-mentioned existing Problems existing.
Summary of the invention
For overcoming the defect existing for prior art, below propose a kind of artificial iris fixing intraocular lens, this artificial iris utilizes the bulge-structure of artificial iris self, can pass scleral walls and be fixed on flexibly in scleral walls, thus the operation avoiding suture fixing, make operation simple.
This utility model provides a kind of artificial iris fixing intraocular lens, it comprises artificial iris every, the fixing button loop of artificial iris and the fixed structure of fixing intraocular lens, described artificial iris is divided into the disc-shaped structure that there is medium pore at center, the surrounding of described button loop is with bulge-structure, can scleral walls be passed and be fixed on flexibly in scleral walls, described artificial iris every the back side or front have the fixed structure of fixing intraocular lens, the patient's implantable artificial crystalline lens facilitating pouch impaired.
In an embodiment of the present utility model, described artificial iris every outer circumference diameter be 9-13mm, thickness is 0.3-0.7mm, the aperture of medium pore is 3-5mm, described artificial iris every on 3-4 equally distributed aperture, current of buying a house in installments lead to, the diameter 0.15-0.25mm of described aperture.
Further, preferably, described artificial iris every outer circumference diameter be 10-11mm, thickness is 0.4-0.5mm, and the aperture of medium pore is 4mm.
In an embodiment of the present utility model, the number of the button loop of described fixing artificial iris is 3-4, and the length of button loop is 4-6mm, and thickness is 0.3-0.5mm, and width is 0.8-1.2mm, and the top of button loop is anti-slip " individual word " type structure; The projection that each button loop differs in size with 2-3, protruding length is at 0.6-1.0mm, and thickness is 0.3-0.5mm, and width is 0.5-0.8mm.
In an embodiment of the present utility model, described artificial iris every front have the fixed structure of fixing intraocular lens, it is that the 2 equally distributed circular arcs in road are protruding, the internal diameter of circular arc is at 5-7mm, and the length of circular arc is 2-4mm, and crown height is 0.7-0.9mm, the width of circular arc is 0.3-0.5mm, circular arc has a length be 0.5-0.8 mm and width is the groove of 0.2-0.4mm, the button loop of fixing artificial iris can pass from groove, thus fixing intraocular lens.
In an embodiment of the present utility model, described artificial iris every front have the fixed structure of fixing intraocular lens, the equally distributed circular arc in Qi Wei 3-4 road is protruding, the internal diameter of circular arc is at 5-7mm, and size is just in time artificial lenticular optical area diameter, and the length of circular arc is 3-5mm, crown height is 0.7-0.9mm, the width of circular arc is 0.3-0.5mm, and there is the flange of one thickness 0.2mm and width 0.2mm on the top of circular arc, prevents intraocular lens from coming off from iris diaphragm.
In an embodiment of the present utility model, described artificial iris every the back side have the fixed structure of fixing intraocular lens, the equally distributed circular arc in Qi Wei 3-4 road is protruding, the internal diameter of circular arc is at 5-7mm, and size is just in time artificial lenticular optical area diameter, and the length of circular arc is 3-5mm, crown height is 0.7-0.9mm, the width of circular arc is 0.3-0.5mm, and there is the flange of one thickness 0.2mm and width 0.2mm on the top of circular arc, prevents intraocular lens from coming off from iris diaphragm.
This utility model is owing to using above technical scheme, and the beneficial effect made it have is:
Utilize the bulge-structure of artificial iris self, can scleral walls be passed and be fixed on flexibly in scleral walls, thus the operation avoiding suture fixing, perform the operation simple, iris is not only made to keep stable within the eye, and not needing suture to fix when implanting, its viscoelasticity makes again iris easily via minimal incision *, and can not cause damage.The artificial iris that this utility model provides also has the fixed structure of fixing intraocular lens, for the cataract patient that pouch is impaired, can easily intraocular lens be fixed on iris.
The detailed description and obtaining that feature of the present utility model can consult the graphic and following better embodiment of this case is well understood to.
Accompanying drawing explanation
Front schematic view when Fig. 1 is groove artificial iris of the present utility model using three buttons loop and two fixing artificial intraocular lensess;
Fig. 2 is front schematic view when artificial iris of the present utility model using four buttons loop and two grooves;
Fig. 3 is front schematic view artificial iris of the present utility model using four buttons loop and four band flange circular arcs;
Fig. 4 is front schematic view artificial iris of the present utility model using three buttons loop and four band flange circular arcs;
Fig. 5 is front schematic view artificial iris of the present utility model using three buttons loop and three band flange circular arcs;
Fig. 6 is front schematic view artificial iris of the present utility model using four buttons loop and three band flange circular arcs;
Fig. 7 is schematic rear view artificial iris of the present utility model using four buttons loop and three band flange circular arcs;
Fig. 8 is schematic rear view artificial iris of the present utility model using four buttons loop and four band flange circular arcs;
Fig. 9 is schematic rear view artificial iris of the present utility model using three buttons loop and four band flange circular arcs;
Figure 10 is schematic rear view artificial iris of the present utility model using three buttons loop and three band flange circular arcs;
Figure 11 is the part sectioned view of the circular arc of this utility model flange;
Figure 12 is the transmission curve figure of artificial iris of the present utility model at 300-1100nm wavelength.
Detailed description of the invention
The technological means realized to make this utility model, creation characteristic, reaching object and effect is easy to understand, below in conjunction with concrete diagram, setting forth this utility model further.
Composition graphs 1 with shown in Fig. 2, in this utility model, artificial iris structure comprise artificial iris every 1, the fixing button loop 4 of artificial iris and the circular arc of fixing intraocular lens or boss 6.
The artificial iris of artificial iris has the complete opaque disc-shaped structure of medium pore 2 centered by 1, on 1, have 3-4 equally distributed aperture 3 at artificial iris, current of buying a house in installments lead to, artificial iris every the outer circumference diameter of 1 be 9-13mm, thickness is 0.3-0.7mm, and the aperture of medium pore 2 is 3-5mm.Preferred artificial iris is 10-11 every the outer circumference diameter of 1, and thickness is 0.4-0.5mm, and medium pore 2 aperture is 4mm.
Artificial iris is with 3-4 equally distributed aperture 3 on 1, and current of buying a house in installments lead to, aperture 3 diameter 0.15-0.25mm.Artificial iris 3 apertures on 1 are spacing 120 ° distribution, or 4 apertures are spacing 90 ° distribution, and preferred aperture 3 diameter is 0.2mm.
The number of the button loop 4 of fixing artificial iris is 3-4, and the length of button loop 4 is 4-5mm, and thickness is 0.4-0.5mm, and width is 0.8-1.2mm, and the top of button loop 4 is anti-slip " individual word " type structure.The projection 5 that each button loop differs in size with 2-3, the length of protruding 5 is at 1-2mm, and thickness is 0.3-0.5mm, and width is 0.6-1.0mm.Can select 1-3 protruding 5 artificial iris is stuck in sclerotic puncture mouth, reach object artificial iris being fixed on ophthalmic.
As shown in Figures 3 to 6, artificial iris can be that front has 2 to be uniformly distributed circular arc 6 projection every 1, the internal diameter of circular arc 6 is at 5-7mm, the length of circular arc 6 is 2-4mm, and circular arc 6 is highly 0.7-0.9mm, and the width of circular arc 6 is 0.3-0.5mm, circular arc 6 there is a long 0.5-0.8 mm, the groove 8 of high 0.2-0.4mm, the button loop 4 of intraocular lens can pass from groove 8, thus fixing intraocular lens.
Again in conjunction with shown in Figure 11, artificial iris is every can also be that front has 3-4 road to be uniformly distributed circular arc 6, the internal diameter of circular arc 6 is at 5-7mm, size is just in time artificial lenticular optical area diameter, and the length of circular arc 6 is 3-5mm, and circular arc 6 is highly 0.7-0.9mm, the width of circular arc 6 is 0.3-0.5mm, there is one thickness 0.2mm on the top of circular arc 6, and the flange 7 of width 0.2mm prevents intraocular lens from coming off from iris diaphragm.
Again shown in composition graphs 7 to Figure 10, artificial iris can also be that the back side has 3-4 road to be uniformly distributed circular arc 6 every 1, the internal diameter of circular arc 6 is at 5-7mm, size is just in time artificial lenticular optical area diameter, and the length of circular arc 6 is 3-5mm, and circular arc 6 is highly 0.7-0.9mm, the width of circular arc 6 is 0.3-0.5mm, there is one thickness 0.2mm on the top of circular arc 6, and the flange 7 of width 0.2mm prevents intraocular lens from coming off from iris diaphragm.
In this utility model, the material of manufacturing artificial iris contains silica gel color mother, silica gel color is female to be synthesized by black colorant and silica gel, black colorant can be the one in iron oxide black, white carbon black and sudan black, and silica gel color mother also can be the synthesis of blueness, Lycoperdon polymorphum Vitt, green colourant and silica gel, and blue colorant can be cobalt blue, the artificial iris that this material makes is substantially light tight, external most of light can be stopped, overcome the phenomenon of dazzle, photophobia, improve visual acuity.The artificial iris that this material makes, in 300-1100nm wave-length coverage, light transmission rate <0.2%(is see Figure 12).
The material of artificial iris of the present utility model, except containing except silica gel Masterbatch, also includes but not limited to silica gel, polymethyl methacrylate, hydrophilic acrylate, hydrophobic acrylic acid's esters base polymer material.
Artificial iris of the present utility model adopts silica gel Masterbatch and base polymer material with copolymerization or blending method synthesis, has the correlation properties such as delayed, lax, the creep of human eye iris, strain rate, can play the effect of human eye iris blocks external light.Good, the good toughness of artificial iris intensity of silica gel material synthesis and soft, flexible, can adopt and implant at the minimal incision * of below 2.2mm, operation process is convenient, and postoperative risk is little and surgical effect is well more a lot of than adopting the iris diaphragm of the band crystal of polymethyl methacrylate.
Artificial iris of the present utility model adopts the mode of compression molding, first various for liquid-state silicon gel component is mixed according to a certain percentage, then the silica gel color adding 0.5-2% is female, be uniformly mixed, evacuation, operating time controls within 4 hours, then prelum accurate injection is passed through in mould, after locking die, mould is placed in hot briquetting under 120-150 DEG C of environment, within 30-50 minute, take out mould, product is taken out in die sinking, cleaning, dry, qualified product is obtained after sterilizing, the artificial iris precision that the method makes is high, surface smoothness is good, without polishing, there is no burr etc.
Artificial iris of the present utility model, shore hardness (shore A) is 35-45, and percentage elongation is greater than 70%, and the tear-resistant intensity of button loop is greater than 0.4N/mm, artificial iris every hot strength be greater than 600KPa.
When Operation artificial iris of the present utility model, by implantation device or implantation tweezer, artificial iris is implanted anterior chamber, after it launches naturally, with No. 25 entry needles, button loop 4 is directed to outside sclera respectively, due to the elastical retraction of 4 materials of fastening with a rope, string, etc., select place's bossing to be stuck in sclerotic puncture mouth place according to the size of eyeball, bury fixing after pruning unnecessary button loop 4 in sclera flaggy, do not need extra suture to fix, can effectively make artificial iris consistent with former iris root ring plain every 1 plane.When follow-up implantable artificial crystalline lens, first IOP implantation anterior chamber, then before intraocular lens dislocation to artificial iris, 4 are fastened with a rope, string, etc. from a groove 8 of iris diaphragm projection 5 part through going intraocular lens's one, then another button loop 4 of intraocular lens from another groove 8 of iris diaphragm projection 5 part through going, thus intraocular lens is fixed on iris diaphragm; Or first IOP implantation anterior chamber, then before intraocular lens dislocation to artificial iris or below, button loop 4 horizontal positioned, the edge, Optical Region of intraocular lens is placed on circular arc 6(or L-type boss) in, utilize circular arc 6(or L-type boss) and flange 7 artificial intraocular lenses is blocked fixing.Also the button loop 4 of intraocular lens through the dead slot of artificial iris on 1 in circular arc 6 projection, intraocular lens can be fixed on artificial iris on 1, thus complete operation.
Artificial iris of the present utility model, utilize the bulge-structure of artificial iris self, can scleral walls be passed and be fixed on flexibly in scleral walls, thus the operation avoiding suture fixing, perform the operation simple, not only make iris keep stable within the eye, and do not need suture to fix when implanting, its viscoelasticity makes again iris easily via minimal incision *, and can not cause damage.The artificial iris that this utility model provides also has the bulge-structure of fixing intraocular lens, for the cataract patient that pouch is impaired, can easily intraocular lens be fixed on iris.
Claims (7)
1. can fix the artificial iris of intraocular lens for one kind, it is characterized in that, it comprises artificial iris every, the fixing button loop of artificial iris and the fixed structure of fixing intraocular lens, described artificial iris is divided into the disc-shaped structure that there is medium pore at center, the surrounding of described button loop is with bulge-structure, can through scleral walls and being fixed on flexibly in scleral walls, described artificial iris every the back side or front have the fixed structure of fixing intraocular lens, the patient's implantable artificial crystalline lens facilitating pouch impaired.
2. artificial iris as claimed in claim 1, it is characterized in that, described artificial iris every outer circumference diameter be 9-13mm, thickness is 0.3-0.7mm, the aperture of medium pore is 3-5mm, described artificial iris every on 3-4 equally distributed aperture, current of buying a house in installments lead to, the diameter 0.15-0.25mm of described aperture.
3. artificial iris as claimed in claim 2, is characterized in that, preferably, described artificial iris every outer circumference diameter be 10-11mm, thickness is 0.4-0.5mm, and the aperture of medium pore is 4mm.
4. artificial iris as claimed in claim 1, is characterized in that, the number of the button loop of described fixing artificial iris is 3-4, and the length of button loop is 4-6mm, and thickness is 0.3-0.5mm, and width is 0.8-1.2mm, and the top of button loop is anti-slip " individual word " type structure; The projection that each button loop differs in size with 2-3, protruding length is at 0.6-1.0mm, and thickness is 0.3-0.5mm, and width is 0.5-0.8mm.
5. artificial iris as claimed in claim 1, it is characterized in that, described artificial iris every front have the fixed structure of fixing intraocular lens, it is that the 2 equally distributed circular arcs in road are protruding, and the internal diameter of circular arc is at 5-7mm, the length of circular arc is 2-4mm, crown height is 0.7-0.9mm, and the width of circular arc is 0.3-0.5mm, circular arc has a length be 0.5-0.8 mm and width is the groove of 0.2-0.4mm, the button loop of fixing artificial iris can pass from groove, thus fixing intraocular lens.
6. artificial iris as claimed in claim 1, it is characterized in that, described artificial iris every front have the fixed structure of fixing intraocular lens, the equally distributed circular arc in Qi Wei 3-4 road is protruding, and the internal diameter of circular arc is at 5-7mm, size is just in time artificial lenticular optical area diameter, the length of circular arc is 3-5mm, and crown height is 0.7-0.9mm, and the width of circular arc is 0.3-0.5mm, there is the flange of one thickness 0.2mm and width 0.2mm on the top of circular arc, prevents intraocular lens from coming off from iris diaphragm.
7. artificial iris as claimed in claim 1, it is characterized in that, described artificial iris every the back side have the fixed structure of fixing intraocular lens, the equally distributed circular arc in Qi Wei 3-4 road is protruding, and the internal diameter of circular arc is at 5-7mm, size is just in time artificial lenticular optical area diameter, the length of circular arc is 3-5mm, and crown height is 0.7-0.9mm, and the width of circular arc is 0.3-0.5mm, there is the flange of one thickness 0.2mm and width 0.2mm on the top of circular arc, prevents intraocular lens from coming off from iris diaphragm.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105520807A (en) * | 2016-02-25 | 2016-04-27 | 王小东 | Anterior chamber supporter applied to penetrating keratoplasty |
| CN106264787A (en) * | 2015-05-18 | 2017-01-04 | 爱博诺德（苏州）医疗器械有限公司 | A kind of artificial iris fixing intraocular lens and material thereof and processing method |
| CN106308977A (en) * | 2016-08-31 | 2017-01-11 | 厦门大学附属厦门眼科中心 | Artificial iris with a capsule |
| CN108685626A (en) * | 2018-06-27 | 2018-10-23 | 卢国华 | Intraocular lens |
| CN110464540A (en) * | 2019-08-28 | 2019-11-19 | 厦门浩博尔科技有限公司 | The pouch tensioner of suture is exempted from a kind of ophthalmic lens subluxation |
| US10973624B1 (en) | 2020-04-29 | 2021-04-13 | Long Bridge Medical, Inc. | Devices to support and position an intraocular lens within the eye and methods of use |
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2015
- 2015-05-18 CN CN201520318940.5U patent/CN204698755U/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106264787A (en) * | 2015-05-18 | 2017-01-04 | 爱博诺德（苏州）医疗器械有限公司 | A kind of artificial iris fixing intraocular lens and material thereof and processing method |
| CN106264787B (en) * | 2015-05-18 | 2021-07-06 | 爱博诺德（苏州）医疗器械有限公司 | Artificial iris capable of fixing artificial lens and material and processing method thereof |
| CN105520807A (en) * | 2016-02-25 | 2016-04-27 | 王小东 | Anterior chamber supporter applied to penetrating keratoplasty |
| CN105520807B (en) * | 2016-02-25 | 2018-05-15 | 王小东 | A kind of anterior chamber eyelid retractor used in penetrating keratoplasty |
| CN106308977A (en) * | 2016-08-31 | 2017-01-11 | 厦门大学附属厦门眼科中心 | Artificial iris with a capsule |
| CN108685626A (en) * | 2018-06-27 | 2018-10-23 | 卢国华 | Intraocular lens |
| CN110464540A (en) * | 2019-08-28 | 2019-11-19 | 厦门浩博尔科技有限公司 | The pouch tensioner of suture is exempted from a kind of ophthalmic lens subluxation |
| US10973624B1 (en) | 2020-04-29 | 2021-04-13 | Long Bridge Medical, Inc. | Devices to support and position an intraocular lens within the eye and methods of use |
| US11759309B2 (en) | 2020-04-29 | 2023-09-19 | Long Bridge Medical, Inc. | Devices to support and position an intraocular lens within the eye and methods of use |
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