CN204016558U

CN204016558U - Modified model artificial intraocular lenses

Info

Publication number: CN204016558U
Application number: CN201420441263.1U
Authority: CN
Inventors: 张劲松
Original assignee: Shenzhen New Industries Material Of Ophthalmology Co Ltd
Current assignee: Lanstek (Barbados) Co., Ltd.
Priority date: 2014-08-05
Filing date: 2014-08-05
Publication date: 2014-12-17
Anticipated expiration: 2024-08-05

Abstract

This utility model discloses a kind of modified model artificial intraocular lenses, comprise optic and multiple support loop, described optic has after described modified model Intraocular implantation human eye in order to the first surface facing with human eye, and in order to human eye back to second surface, at least two annular stop parts are convexly equipped with on described first surface, described two annular stop parts are arranged along the periphery of described first surface, the annular stop part being positioned at outside is greater than the height of the annular stop part inside being positioned at relative to described first surface relative to the height of described first surface, all contact with human eye after described modified model Intraocular implantation human eye to make described two annular stop parts, move between the first surface (i.e. the said rear surface of background technology) of artificial intraocular lenses and rear capsule with proliferation of lens epithelial cells residual after stopping cataract operation.

Description

Modified model artificial intraocular lenses

Technical field

This utility model relates to technical field of medical instruments, particularly relates to a kind of modified model artificial intraocular lenses.

Background technology

Artificial intraocular lenses is a kind of artificial lens implanting ophthalmic, for replacing the mineral crystal in the human eye becoming muddiness because of cataract conditions.The form of artificial intraocular lenses, is normally made up of the support loop of circular optical parts and periphery.Optics is made up of transparent macromolecular material.These macromolecular materials can be hard, also can be soft.The artificial intraocular lenses be made up of hard material, must could implant ophthalmic by a larger otch (being usually greater than 6 millimeters), progressively be eliminated now.The artificial intraocular lenses be made up of soft material, is also often referred to as collapsible artificial intraocular lenses, can implant ophthalmic after folding or curling by a less otch (from being less than 2 millimeters to 3 millimeters).Flexible material at present for the preparation of collapsible artificial intraocular lenses is mainly divided into several classes such as silica gel, hydrophilic acrylate's (hydrogel) and hydrophobic acrylic acid's ester.

Post gelating time, also referred to as secondary cataract, is a kind of common complication after Intraocular implantation.Post gelating time causes because proliferation of lens epithelial cells residual after cataract operation moves between the rear surface of artificial intraocular lenses and rear capsule.

Utility model content

Main purpose of the present utility model be to solve how to stop cataract operation after residual proliferation of lens epithelial cells move to problem between the rear surface of artificial intraocular lenses and rear capsule.

For arriving above-mentioned technical purpose, this utility model provides a kind of modified model artificial intraocular lenses, comprise optic and multiple support loop, described optic has after described modified model Intraocular implantation human eye in order to the first surface facing with human eye, and in order to human eye back to second surface, at least two annular stop parts are convexly equipped with on described first surface, described two annular stop parts are arranged along the periphery of described first surface, the annular stop part being positioned at outside is greater than the height of the annular stop part inside being positioned at relative to described first surface relative to the height of described first surface, all contact with human eye after described modified model Intraocular implantation human eye to make described two annular stop parts.

Preferably, each annular stop part has the contact surface in order to contact with human eye after described modified model Intraocular implantation human eye, described contact surface on the direction at the center away from described optic with described first surface in gradually away from setting.

Preferably, described first surface is that plane is arranged, and described first surface is arranged with annular groove between described two annular stop parts.

Preferably, described support loop quantity is two, described optic has the side surface be connected with described first surface and described second surface, the close peripheral region of described second surface is arranged with two depressed parts, the bottom of described two depressed parts and described side surface adjoin, the periphery of described second surface is carried out decile by described two depressed parts, and two described support loops are symmetrical about the line at the center of described two depressed parts.

Preferably, the periphery along described depressed part on described second surface is convexly equipped with reinforcement.

The modified model artificial intraocular lenses that this utility model provides, comprise optic and multiple support loop, described optic has after described modified model Intraocular implantation human eye in order to the first surface facing with human eye, and in order to human eye back to second surface, at least two annular stop parts are convexly equipped with on described first surface, described two annular stop parts are arranged along the periphery of described first surface, the annular stop part being positioned at outside is greater than the height of the annular stop part inside being positioned at relative to described first surface relative to the height of described first surface, all contact with human eye after described modified model Intraocular implantation human eye to make described two annular stop parts, move between the first surface (i.e. the said rear surface of background technology) of artificial intraocular lenses and rear capsule with proliferation of lens epithelial cells residual after stopping cataract operation.

Accompanying drawing explanation

The perspective view at one visual angle of one embodiment of the modified model artificial intraocular lenses that Fig. 1 provides for this utility model;

The sectional structure schematic diagram of modified model artificial intraocular lenses shown in Fig. 2 Fig. 1 after face A analyses and observe;

Fig. 3 is the enlarged diagram of Fig. 2 local I II;

Fig. 4 is the perspective view at another visual angle of the modified model artificial intraocular lenses shown in Fig. 1;

Fig. 5 is the enlarged diagram of Fig. 4 local V.

The realization of this utility model object, functional characteristics and advantage will in conjunction with the embodiments, are described further with reference to accompanying drawing.

Detailed description of the invention

The technical solution of the utility model is further illustrated below in conjunction with Figure of description and specific embodiment.Should be appreciated that specific embodiment described herein only in order to explain this utility model, and be not used in restriction this utility model.

This utility model provides a kind of modified model artificial intraocular lenses, refer to Fig. 1 to Fig. 5, in one embodiment of the modified model artificial intraocular lenses 100 provided in this utility model, described modified model artificial intraocular lenses 100 comprises optic 1 and multiple support loop 2, described optic 1 has after described modified model artificial intraocular lenses 100 implants human eye in order to the first surface 11 facing with human eye, and in order to human eye back to second surface 12, at least two annular stop parts 13 are convexly equipped with on described first surface 11, described two annular stop parts 13 are arranged along the periphery of described first surface 11, the annular stop part 13 being positioned at outside is greater than the height of the annular stop part 13 inside being positioned at relative to described first surface 11 relative to the height of described first surface 11, all contact with human eye after described modified model artificial intraocular lenses 100 implants human eye to make described two annular stop parts 13, move between the first surface 11 of artificial intraocular lenses and rear capsule with proliferation of lens epithelial cells residual after stopping cataract operation.

Preferably, each annular stop part 13 has the contact surface 13a in order to contact with human eye after described modified model artificial intraocular lenses 100 implants human eye, described contact surface 13a on the direction at the center away from described optic 1 with described first surface 11 in gradually away from setting, contact better to ensure that described contact surface 13a can have with people's eyeball.

Preferably, described first surface 11 is arranged in plane, described first surface 11 is arranged with annular groove 14 between described two annular stop parts 13, make the distance between the peak of described two annular stop parts 13 and the minimum point of described annular groove 14 long, elasticity is strengthened to weaken the intensity of described two annular stop parts 13, after described modified model artificial intraocular lenses 100 implants human eye, patient can not feel well because described two annular stop part 13 intensity are large.

Preferably, described support loop 2 quantity is two, described optic 1 has the side surface 16 be connected with described first surface 11 and described second surface 12, the close peripheral region of described second surface 12 is arranged with two depressed parts 15, bottom and the described side surface 16 of described two depressed parts 15 adjoin, the periphery of described second surface 12 is carried out decile by described two depressed parts 15, and two described support loops 2 are symmetrical about the line at the center of described two depressed parts 15, thus, described modified model artificial intraocular lenses 100 when folding or curling, can carry out folding or curling along described two depressed parts 15, also namely described two depressed parts 15 can play the effect of pre-broken line, and it is convenient folding or curling.

In addition, described second surface 12 is convexly equipped with reinforcement 17 along the periphery of described depressed part 15, easily ruptures because of strength reduction in described two depressed part 15 places to prevent described optic 1.

These are only preferred embodiment of the present utility model; not thereby its scope of the claims is limited; every utilize this utility model description and accompanying drawing content to do equivalent structure or equivalent flow process conversion; directly or indirectly be used in the technical field that other are relevant, be all in like manner included in scope of patent protection of the present utility model.

Claims

1. a modified model artificial intraocular lenses, comprise optic and multiple support loop, described optic has after described modified model Intraocular implantation human eye in order to the first surface facing with human eye, and in order to human eye back to second surface, it is characterized in that, at least two annular stop parts are convexly equipped with on described first surface, described two annular stop parts are arranged along the periphery of described first surface, the annular stop part being positioned at outside is greater than the height of the annular stop part inside being positioned at relative to described first surface relative to the height of described first surface, all contact with human eye after described modified model Intraocular implantation human eye to make described two annular stop parts.

2. modified model artificial intraocular lenses as claimed in claim 1, it is characterized in that, each annular stop part has the contact surface in order to contact with human eye after described modified model Intraocular implantation human eye, described contact surface on the direction at the center away from described optic with described first surface in gradually away from setting.

3. modified model artificial intraocular lenses as claimed in claim 1, is characterized in that, described first surface be plane setting, and described first surface is arranged with annular groove between described two annular stop parts.

4. modified model artificial intraocular lenses as claimed in claim 1, it is characterized in that, described support loop quantity is two, described optic has the side surface be connected with described first surface and described second surface, the close peripheral region of described second surface is arranged with two depressed parts, bottom and the described side surface of described two depressed parts adjoin, and the periphery of described second surface is carried out decile by described two depressed parts, and two described support loops are symmetrical about the line at the center of described two depressed parts.

5. modified model artificial intraocular lenses as claimed in claim 4, is characterized in that, described second surface is convexly equipped with reinforcement along the periphery of described depressed part.