CN203341853U

CN203341853U - Implantation-type nearsightedness lens

Info

Publication number: CN203341853U
Application number: CN 201320348054
Authority: CN
Inventors: 廖秀高
Original assignee: WUXI VISION PRO Ltd
Current assignee: WUXI VISION PRO Ltd
Priority date: 2013-06-17
Filing date: 2013-06-17
Publication date: 2013-12-18
Anticipated expiration: 2023-06-17

Abstract

The utility model discloses an implantation-type nearsightedness lens. The implantation-type nearsightedness lens comprises a lens body and a plurality of flake-like supporting arms formed along the edge of the lens body in a cutting mode, the included angle between the plane where the supporting arms are located and the plane where the lens body is located is 10-20 degrees, the whole lens body is similar to a spherical surface, a transparent light guide area is arranged on the lens body, and the lens body and the supporting arms are all made of the same hydrophilic polyacrylic ester materials. According to the implantation-type nearsightedness lens, the supporting arms can be bent, the bending angle of the supporting arms can be automatically adjusted according to the profile of the eye when the lens is implanted into the eye, and the lens of the same size can be implanted into eyes of different sizes. Due to the connecting positions between the supporting arms and the lens body are thin and short, the supporting arms can be bent more easily, and the size of the lens is automatically adjusted so that the lens can more fit with the eye and be better in comfort performance. The materials of the lens are high in refractive index, the lens is small in thickness, the hydrophilic polyacrylic ester materials are elastic, and therefore the implantation-type nearsightedness lens can be implanted into the eye conveniently.

Description

A kind of implantation myopia lens

Technical field

This utility model relates to the property implanted glasses manufacturing technology field, particularly a kind of implantation myopia lens.

Background technology

People's eyes are water white when just birth, and the ophthalmic geode is very soft, and water white transparency can effectively reach the function of its focusing in lax and anxiety, sees and far sees closely can see very clear.But, along with gradually growing up of ewborn infant, part people's eyes can start myopia.Especially along with computer technology, the development of TV tech and networking science and technology, young student require a great deal of time and use computer and internet learning.Closely watch for a long time display screen attentively and injured greatly eyes, make near-sighted people more and more, the bathomorphic number of degrees are also more and more higher, and some people's myopia degree is up to thousands of degree, if wearing spectacles not sees that thing is all very difficult on foot.But, while wearing the outer glasses for the myopia of wearing, no matter be have a meal or eat face, all usually have water vapour on eyeglass, improper use also can be broken eyeglass.The people of high myopia, also must must, with the nearsighted eyeglass of upper high myopia, look that eyeglass can be a-circle-by-a-circle, directly has influence on the attractive in appearance of people.Look very natural although wear contact lens, often need to lift down cleaning to contact lens.Simultaneously, the material requirements of contact lens has good breathability, also must renew in use for some time, extremely inconvenient.In order to eliminate the worry of wearing glasses, since the nineties in last century, people start to process by laser technology the shape of cornea, to arrive, eliminate near-sighted effect.But after using laser technology to process cornea, usually can cause eyes dry and astringent, it is blind that more serious situation can cause patient's cornea to come off.

The deficiency of comprehensive above-mentioned technology, people also start the design of the property implanted myopia lens and the exploitation of material.United States Patent (USP) 5,258, in 025,5,480,428 and 5,766,245, the people such as Fedorov S at first propose the design of the property implanted myopia lens and the property implanted myopia lens is implanted to the concrete position in eyes.United States Patent (USP) 5,913, in 898, at first Feingold V has proposed implantation glasses for the myopia (ICL).United States Patent (USP) 6,015, in 435,6,428,574,6,506,212 and 6,706,066, at first the people such as Valunin Igor have proposed the design that the floatability of back room is implanted the myopia lens.

Prior art is disclosed for developing the material of the property implanted myopia lens, mainly contains the PMMA material, silica gel material and hydrophobic polyacrylate material.The PMMA material is too hard, can not fold, and while carrying out implant surgery, the required side mouth of opening is large, and cell runs off too many, larger to ocular tissue's injury.Silica gel material and hydrophobic polyacrylate material are all hydrophobic materials, hard too, and implant back room, are easy to produce the induced cataract.

The utility model content

For solving the problems of the technologies described above, this utility model provides a kind of implantation myopia lens, to reach, makes eyeglass regulate voluntarily size according to the human eye size, strengthens comfort, and makes its convenient purpose of implanting human eye.

For achieving the above object, the technical solution of the utility model is as follows:

A kind of implantation myopia lens, comprise the eyeglass main body and along several lamellar support arms of described eyeglass body rim excision forming, described support arm comprises connecting portion and support portion, described connecting portion is connected with described eyeglass body rim, the plane included angle at the plane at described support arm place and described eyeglass main body place is between the 10-20 degree, make eyeglass integral body be the class sphere, described eyeglass main body is provided with the transparent light guide district, and it is made that described eyeglass main body and described support arm are the hydrophilic polyacrylic ester material.

Preferably, described connecting portion is thin and short structure.

Preferably, on described eyeglass main body, offer several through holes, described through hole is not in described transparent light guide district.

Pass through technique scheme, a kind of implantation myopia lens support arm that this utility model provides can bend, when implanting human eye, eyeglass can adjust voluntarily according to the human eye profile bending angle of support arm, the eyeglass of same model can be implanted in the human eye of different sizes, because the junction of support arm and eyeglass main body is thin and short, support arm more easily bends, make the eyeglass human eye of more fitting, comfortableness is good, eyeglass material refractive index is between 1.430-1.490, lens thickness is low, the high resilience of hydrophilic polyacrylic ester material, recovery time in human eye is less than 1 second, while carrying out implant surgery, the required side of opening is young, the convenient human eye of implanting.

The accompanying drawing explanation

In order to be illustrated more clearly in this utility model embodiment or technical scheme of the prior art, below will the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described.

Fig. 1 is that the disclosed a kind of implantation myopia lens master of this utility model embodiment 1 looks schematic diagram;

Fig. 2 is the disclosed a kind of implantation myopia lens schematic side view of this utility model embodiment 1;

Fig. 3 is that the disclosed a kind of implantation myopia lens master of this utility model embodiment 2 looks schematic diagram;

Fig. 4 is the disclosed a kind of implantation myopia lens schematic side view of this utility model embodiment 2.

The specific embodiment

Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is clearly and completely described.

Embodiment 1

According to Fig. 1 to 2, this utility model provides a kind of implantation myopia lens, comprise eyeglass main body 1 and along the support arm 2 of 4 lamellars of eyeglass main body 1 edge cuts molding, support arm 2 comprises thin and short connecting portion and flat support portion, connecting portion is connected with eyeglass main body 1 edge, the plane included angle at the plane at support arm 2 places and eyeglass main body 1 place is between the 10-20 degree, make eyeglass integral body be the class sphere, eyeglass main body 1 is provided with transparent light guide district 3, transparent light guide district 3 is diameter 4.5-6.0 millimeter, the concace mirror lens that center thickness is the 0.05-0.25 millimeter, it is made that eyeglass main body 1 and support arm 2 are same hydrophilic polyacrylic ester material.

In order to facilitate the human body fluid exchange of eyeglass both sides, offer two manholes 4 on eyeglass main body 1, through hole 4 is not in transparent light guide district 3.

Embodiment 2

According to Fig. 3 to 4, this utility model provides a kind of implantation myopia lens, comprise eyeglass main body 5 and along the support arm 6 of 4 lamellars of eyeglass main body 5 edge cuts molding, support arm 6 comprises thin and short connecting portion and flat support portion, connecting portion is connected with eyeglass main body 5 edges, the interior edge of support arm 6 is nearer apart from the distance at eyeglass main body 1 edge than the interior edge of support arm 2 in embodiment 1 apart from the distance at eyeglass main body 5 edges, the hunting range of implanting human eye rear support arm 6 is less, the plane included angle at the plane at support arm 6 places and eyeglass main body 5 places is between the 10-20 degree, make eyeglass integral body be the class sphere, eyeglass main body 5 is provided with transparent light guide district 7, transparent light guide district 7 is diameter 4.5-6.0 millimeter, the concace mirror lens that center thickness is the 0.05-0.25 millimeter, it is made that eyeglass main body 5 and support arm 6 are same hydrophilic polyacrylic ester material.

In order to facilitate the human body fluid exchange of eyeglass both sides, offer two

manholes

8 and 4 strip through-holes 8 on eyeglass

main body

5,4 strip through-holes that increase than embodiment 1, make the human body fluid exchange of eyeglass both sides more smooth, and through hole 8 is not in transparent light guide district 7.

The hydrophilic polyacrylic ester material that this utility model is used is formed by methacrylic acid-2-hydroxyethyl ester and the copolymerization of acrylic acid alkyl ester derivant, or is formed by alkyl acrylate, alkyl methacrylate and styrene or cinnamic derivant copolymerization.

Wherein, but but also can contain polymerisable medium-sized interlinkage molecule or interlinkage group in described hydrophilic polyacrylic ester material; Polymerisable interlinkage molecule is: ethylene glycol dimethacrylate diester, dimethacrylate propylene glycol diesters, dimethacrylate butanediol diester, dimethacrylate hexanediol diester, diacrylate ethylene glycol diester, diacrylate propylene glycol diesters, diacrylate butanediol diester, diacrylate hexanediol diester, 1,4-divinylbenzene or 1,3-divinylbenzene; But the interlinkage group is: methacryl group, acryloyl group or ethenylphenyl group.

Also contain UV absorbent and blue-light absorbers in the hydrophilic polyacrylic ester material, contain benzophenone or benzotriazole group in UV absorbent.

The implantation myopia lens that this utility model provides, be arranged in the ophthalmic back room after implantation, under the supporting role of support arm, the transparent light guide district is positioned at the pupil place, center of ophthalmic, and transparent light guide district outer surface can be sphere, aspheric surface or Tuo Neike (Toric) optical surface, and the scope of hydrophilic polyacrylic ester Refractive Index of Material is 1.450-1.490, therefore, the thinner thickness of eyeglass, be not easy to contact with pouch, leads its induced cataract of system.

The preparation method of the implantation myopia lens that this utility model provides is as follows:

A kind of preparation method of the property implanted myopia lens comprises the following steps:

A, in the wolf bottle of 3 liters, put into previously prepared good hydrophilic acrylate's small molecule monomer mixed liquor, pass into the air that nitrogen is dissolved to remove in solution, approximately after 60 minutes, under nitrogen pressure, this small molecule monomer mixed solution is transferred in mould, at high temperature making thickness is 3 millimeter, and length is 10.5 inches, and wide is the lamellar hydrophilic polyacrylic ester material of 9.5 inches, then by above-mentioned flaky material, cut into circular thick eyeglass;

B, the thick eyeglass of the circle of well cutting is put into to extraction equipment, extracted with alcohols solvent, to remove micromolecule and the medium-sized molecule that there is no polymerization, carry out subsequently dried;

C, with DAC or Optoform cutting machine, thick eyeglass cutting is prepared as to the eyeglass main body that contains the transparent light guide district, polishing, to remove tool marks, finally cuts out support arm and get final product.

A kind of implantation myopia lens support arm that this utility model provides can bend, when implanting human eye, eyeglass can adjust voluntarily according to the human eye profile bending angle of support arm, the eyeglass of same model can be implanted in the human eye of different sizes, because the junction of support arm and eyeglass main body is thin and short, support arm more easily bends, make the eyeglass human eye of more fitting, comfortableness is good, eyeglass material refractive index is between 1.430-1.490, lens thickness is low, the high resilience of hydrophilic polyacrylic ester material, recovery time in human eye is less than 1 second, while carrying out implant surgery, the required side of opening is young, the convenient human eye of implanting.

To the above-mentioned explanation of the disclosed embodiments, make professional and technical personnel in the field can realize or use this utility model.Multiple modification to these embodiment will be apparent for those skilled in the art, and General Principle as defined herein can be in the situation that do not break away from spirit or scope of the present utility model, realization in other embodiments.Therefore, this utility model will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.

Claims

1. the property implanted a myopia lens, it is characterized in that, comprise the eyeglass main body and along several lamellar support arms of described eyeglass body rim excision forming, described support arm comprises connecting portion and support portion, described connecting portion is connected with described eyeglass body rim, the plane included angle at the plane at described support arm place and described eyeglass main body place is between the 10-20 degree, make eyeglass integral body be the class sphere, described eyeglass main body is provided with the transparent light guide district, and it is made that described eyeglass main body and described support arm are the hydrophilic polyacrylic ester material.

2. a kind of implantation myopia lens according to claim 1, is characterized in that, described connecting portion is thin and short structure.

3. a kind of implantation myopia lens according to claim 1, is characterized in that, on described eyeglass main body, offers several through holes, and described through hole is not in described transparent light guide district.