CN1043009C - Deformable in-eye lens - Google Patents
Deformable in-eye lens Download PDFInfo
- Publication number
- CN1043009C CN1043009C CN94115686A CN94115686A CN1043009C CN 1043009 C CN1043009 C CN 1043009C CN 94115686 A CN94115686 A CN 94115686A CN 94115686 A CN94115686 A CN 94115686A CN 1043009 C CN1043009 C CN 1043009C
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- Prior art keywords
- opticator
- deformable
- tip end
- lens
- base portion
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- Expired - Fee Related
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- 239000000463 material Substances 0.000 claims abstract description 9
- 210000001508 eye Anatomy 0.000 claims description 11
- 239000013536 elastomeric material Substances 0.000 claims description 6
- 230000000903 blocking effect Effects 0.000 claims description 3
- 238000005452 bending Methods 0.000 abstract description 4
- 230000003287 optical effect Effects 0.000 abstract 4
- 239000013013 elastic material Substances 0.000 abstract 1
- 210000005252 bulbus oculi Anatomy 0.000 description 13
- 230000006835 compression Effects 0.000 description 8
- 238000007906 compression Methods 0.000 description 8
- 239000013078 crystal Substances 0.000 description 5
- 230000002787 reinforcement Effects 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 230000003321 amplification Effects 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004945 emulsification Methods 0.000 description 2
- 230000001804 emulsifying effect Effects 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 239000012858 resilient material Substances 0.000 description 2
- 208000002177 Cataract Diseases 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 229920006311 Urethane elastomer Polymers 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000012966 insertion method Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000001932 seasonal effect Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- -1 silicon ketone Chemical class 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
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Abstract
The present invention relates to a deformable contact lens which comprises a deformable optical part made of a certain elastic material with the memory property, and supporting parts made of a flexible material different from the material of the optical part. The present invention is characterized in that the supporting part is composed of a flexible leading end and a firm root for isolating the bending stress caused by the lateral of the flexible leading part from being transferred to the optical part, wherein an extending part intersecting with the lateral of the flexible leading end and the root is arranged outside the optical part.
Description
The present invention relates to a kind of operating on and insert the employed deformable eyes buitin lens of ophthalmic substituting this crystal after the lens extraction of eyeball because of cataract.
In general, during the excising operation of cataractous eyeglass, the otch that cuts on the eyeball is littler, and it is littler that random probability of looking takes place in the operation back.
For this reason, developed a kind of so-called ultrasonic crystal emulsifying suction (KPE) of using the ultrasonic emulsification suction device.This technology is to utilize above-mentioned ultrasonic emulsification suction device, the crystal of nebulousurineization is smashed and emulsifying after with its extraction.So only can be with lens extraction to the otch of the about 4mm of eyeball incision.This compares with the traditional ECCE (ECCE) that need cut the otch of about 10mm when the extracting lens, and is obviously progressive.
Corresponding to above-mentioned little cutting operation method (cutting young operation), the intraocular lens that existing a kind of at present otch from childhood inserts ophthalmic is developed.Traditional intraocular lens is to have the opticator of being made by hard materials such as glass or plastic cement, and the otch size when therefore transplanting must be greater than the diameter of this opticator.More situation is that the otch size need be at 6.5mm or bigger.For this reason, even if according to the KPE otch extracting lens from childhood of performing the operation, when inserting the intraocular lens of hard, yet need otch is cut expansion once again.
In the clear 58-18005 of Japanese Patent Application (spy opens clear 58-146346), disclosed a kind of deformable eyes buitin lens that can insert from the little otch of eyeball.This lens 1 are the opticators 3 that formed by deformably resilient material and the support part 4 that 3 of this opticators are held in ophthalmic are constituted as shown in Figure 4.Support part 4 and opticator 3 to form, the base portion 4a that supports part 4 is imbedded opticator 3 fixed with different types of pliability material.Opticator 3 is integrally formed by the thin annulus 3a of lens 3b and periphery thereof, and these lens 3b increases thickness by the thin part of periphery gradually to the center.
Opticator 3 can be scratched by means of volume, bending, extend and folded etc. make its distortion become less shape, so having the intraocular lens of this opticator can insert in the eyeball from the little otch of about 4mm by using insertion utensil newly developed, make and insert the back, in eyeball, return to its distortion preceding size and shape according to this opticator 3.Therefore, according to the characteristic and the insertion method of this intraocular lens, now can implement the little otch transplant operation of eyeball.
In order to use above-mentioned intraocular lens and to insert utensil otch insertion from childhood, the object that preferably is inserted into, it is deformable eyes buitin lens, it is better small-sized to heal, and especially needs the central portion thickness of opticator that the easiness to distortion is had the greatest impact to make thinner and need make more small-sized with inserting utensil.
But, above-mentioned known deformable intraocular lens, because the deformable opticator 3 made of elastomeric material is in eyeball, supports by the support part made from these opticator 3 kinds of materials 4, so easily because of by compression or external force effect such as be pulled cause that support part 4 is out of shape; Appear at the compression iso-stress of supporting part 4 and then be transferred to opticator 3, the result tends to the base end part 4a that buries underground near the quilt of supporting part 4, that is among Fig. 4 with the part 3a of the convex lens shape shown in the locking wire, strain or distortion take place, and cause opticator 3 to be offset (displacement) within the eye.
The objective of the invention is to solve above-mentioned problem points, also can prevent that optic from the deformable eyes buitin lens of skew taking place even provide a kind of its to support part to be subjected to external force and support tip end partly to be out of shape.
Deformable eyes buitin lens of the present invention is made of a deformable opticator of being made by elastomeric material and the support sector's branch made by the material that is different from this opticator that is linked to this opticator, it is characterized by the stress blocking that will have flexual tip end and the distortion of tip end can be produced and make it be unlikely the strong base portion that is conveyed to optic branchs to be connected with the above-mentioned support part of formation, and the continuous portion of this tip end and this base portion is disposed at the foreign side of opticator.
According to deformable intraocular lens of the present invention, owing to be held in the eyeball by supporting part that deformable opticator is propped up, so when supporting part to be compressed or being pulled or during other external force, though supporting part that stress can take place, but absorbed because this stress can have the flexual tip end of part of supporting, be conveyed to base portion so stress is unlikely.And because support the coupling part of tip end partly and base portion to be configured in the foreign side of opticator, above-mentioned stress can not be sent to opticator, thereby opticator is unlikely and is offset, and wants the deformable lens opticator that strain or distortion also do not take place simultaneously.
Fig. 1 is the plane graph of first embodiment of deformable eyes buitin lens of the present invention;
Fig. 2 is the amplification view of wanting portion of Fig. 1;
Fig. 3 be deformable eyes buitin lens of the present invention second embodiment want portion's amplification view; And
Fig. 4 is the plane graph of an example of traditional deformable eyes buitin lens.
As follows referring now to the drawing explanation first embodiment of the present invention.
In Fig. 1 and Fig. 2, the roughly rounded opticator in front that label 1 is made for deformably resilient material, at the upper right sidepiece and the lower-left sidepiece of this opticator 1, be formed with the reinforcement part 1a that its protuberance is the approximate right angle triangle respectively as shown in Figure 1.The support part that label 2 is served as reasons and made with the 1. different types of pliability material of above-mentioned opticator, the end of the base portion 2a that its width is bigger is the central part that is provided with circular-arc anchor portion 2b integratedly, and the other end of this base portion 2a then is provided with the tiny tip end 2c of width integratedly simultaneously.
Above-mentioned support part 2 has 2, the major part of its base portion 2a and anchor portion 2b whole are embedded in being fixed near the central side of opticator 1 slightly of reinforcement part 1a of opticator 1 respectively, become parallel with one side of reinforcement part 1a and distinguish from the another side of reinforcement part 1a that direction is outstanding slightly to foreign side up and down with seasonal base portion 2a.
The tip end 2c of support part 2 has the elasticity because of the external force easy deformation, and will be circular-arc away from the part bending of base portion 2a, makes two tip end 2c dispose symmetrically.
Above-mentioned opticator 1 is to be made by any transparent materials such as urethane elastomer, silicon ketone elastomeric material, aquogel polymer and ossein chemical compounds, and supports that part 2 is to be made by pliability synthetic resin such as polyamide.
The deformable intraocular lens of first embodiment of this structure is to utilize the suitable insertion utensil that for example discloses for the flat 3-142067 of Japanese Patent Application number, and the little otch of about 4mm inserts in the eyeball to substitute the crystal that picked-off certainly.Because opticator 1 is to be made by elastomeric material, so can return to its bending preceding shape and size by nature after it is inserted in the eyeball.
The intraocular lens of first embodiment, system supports the major part of the anchor portion of part 2 and base portion 2a to be embedded among the above-mentioned reinforcement part 1a of opticator 1 to support fixed optics part 1 it, and support that part 2 is to be connected with by tiny pliability tip sidepiece 2c and thicker and strong base portion 2a to form, simultaneously its continual-connecting-part is provided in side outside the opticator 1, so shown in the arrow of Fig. 1, when its tip end 2c is subjected to the compression stress of F direction, this compression stress will be absorbed to the deflection of arrow F direction because of this tip end 2c, can be conveyed to base portion 2a though be carried on the compression stress of this tip sidepiece 2c simultaneously, but this base portion 2a is strong fixing, so opticator 1 can be because of the compression stress generation skew or the situations such as distortion or strain of this reception and registration.Even so first end side 2c stress by compression, opticator 1 still is not affected.
Be subjected to for example being pulled or the occasion of other external force as for the tip end 2c of this support sector 2, also as above reason is unlikely the displacement that causes opticator 1 or distortion etc.
Refer again to Fig. 3 and illustrate that the second embodiment of the present invention is as follows.
Among Fig. 3, label 1 is that opticator, label 2 are for supporting part.The base portion 2a of this support part 2 and tip end 2c system make onesize, and the while forms a V-shape incised notch 2d of portion in the curved side of the tip end 2c of its continuous portion.The formation of other each several parts is all corresponding with the above-mentioned first embodiment person, so no longer give repeat specification.
With the intraocular lens of above-mentioned formation, same with first embodiment utilizes and inserts utensil and substitute the crystal of extracing and inserted in the eyeball by otch.Owing to support part 2 to have the above-mentioned V-shape incised notch 2d of portion to exist, thus as its tip end 2c by compression or when external force such as being pulled, can absorb stress along this incised notch portion deflection, so as first embodiment can prevent that equally opticator 1 generation is offset or is out of shape.
Other also can be same with first embodiment according to the present invention, and is tiny than base portion with supporting tip end partly to make, and forms the incised notch portion mutually same with second embodiment in its continuous portion.
Because the present invention makes deformable opticator with elastomeric material, and make the support part with the material different with this opticator, and this support part system has flexual tip end and can make its unlikely strong base portion that is conveyed to the optic branch be connected with integrally formed the stress blocking of tip end distortion generation by one, and the continuous portion of this tip end and this base portion is configured in the foreign side of opticator, so can bring into play following effect.
After deformable intraocular lens of the present invention is implanted in the eyeball, support part owing to stably supporting opticator, so when this support part is compressed or is pulled or during other external force, the pliability one end side portion that these stress can be supported part absorbs, it is unlikely is conveyed to strong base portion, and be disposed at the foreign side of optic because of the continuous portion that supports tip end partly and base portion, so above-mentioned stress more is unlikely and is sent to opticator, off normal can not take place in opticator as a result, and opticator itself also is unlikely and deforms.
Claims (1)
1. deformable eyes buitin lens, comprise: a deformable opticator of making by elastomeric material, and be connected in a support part of making by the material different of this opticator with this opticator, it is characterized in that this support part can make the distortional stress blocking of this tip end it be unlikely the strong base portion that is conveyed to optic branchs by the flexual tip end of a tool and and be connected with institute and constitute, the continuous portion that simultaneously this tip end is reached the small part base portion that is connected with this tip end is provided in the foreign side of opticator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94115686A CN1043009C (en) | 1994-09-09 | 1994-09-09 | Deformable in-eye lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94115686A CN1043009C (en) | 1994-09-09 | 1994-09-09 | Deformable in-eye lens |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1118446A CN1118446A (en) | 1996-03-13 |
| CN1043009C true CN1043009C (en) | 1999-04-21 |
Family
ID=5037622
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN94115686A Expired - Fee Related CN1043009C (en) | 1994-09-09 | 1994-09-09 | Deformable in-eye lens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1043009C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100569197C (en) * | 2004-03-03 | 2009-12-16 | 阿库伦斯国际有限公司 | Variable optical power lens composed of two optical elements and its application |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102020108381B3 (en) * | 2020-03-26 | 2021-05-27 | Carl Zeiss Meditec Ag | Intraocular lens with a snap-in projection and a snap-in recess to avoid an axial offset |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4624607A (en) * | 1981-05-06 | 1986-11-25 | Janome Sewing Machine Co., Ltd. | Computed numerical control drilling machine |
| US5201763A (en) * | 1992-02-28 | 1993-04-13 | Allergan, Inc. | Thin intraocular lens |
| US5306297A (en) * | 1992-07-06 | 1994-04-26 | Kabi Pharmacia Ophthalmics, Inc. | Intraocular lens haptic with enlarged anchoring head |
-
1994
- 1994-09-09 CN CN94115686A patent/CN1043009C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4624607A (en) * | 1981-05-06 | 1986-11-25 | Janome Sewing Machine Co., Ltd. | Computed numerical control drilling machine |
| US5201763A (en) * | 1992-02-28 | 1993-04-13 | Allergan, Inc. | Thin intraocular lens |
| US5306297A (en) * | 1992-07-06 | 1994-04-26 | Kabi Pharmacia Ophthalmics, Inc. | Intraocular lens haptic with enlarged anchoring head |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100569197C (en) * | 2004-03-03 | 2009-12-16 | 阿库伦斯国际有限公司 | Variable optical power lens composed of two optical elements and its application |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1118446A (en) | 1996-03-13 |
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| C14 | Grant of patent or utility model | ||
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| CI01 | Correction of invention patent gazette |
Correction item: Agent Correct: Zhang Wei False: Jiang Hua Number: 16 Page: 136 Volume: 15 |
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| ERR | Gazette correction |
Free format text: CORRECT: AGENT |
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| C56 | Change in the name or address of the patentee |
Owner name: BLOCKBUSTER JAPAN CO., LTD. Free format text: FORMER NAME OR ADDRESS: CANON STAR CO., LTD. |
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| CP03 | Change of name, title or address |
Address after: Tokyo, Japan, Japan Patentee after: Staar Japan Inc. Address before: Tokyo, Japan, Japan Patentee before: Canonsei Co., Ltd. |
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| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: Chiba County, Japan Patentee after: Staar Japan Inc. Address before: Tokyo, Japan, Japan Patentee before: Staar Japan Inc. |
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| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 19990421 Termination date: 20100909 |