CN2930656Y - Artificial lens - Google Patents

Abstract

The utility model relates to an artificial crystal capable of being dismantled and separated in the vesica bag and used for adjusting postoperative diopter. Using the intrinsic adsorbability between the vacuum and the crystal tablets makes two or more tablets of artificial crystal tablets in a certain degree closely adhere together, and makes a potential lacuna (2) formed between the crystal tablets, wherein, each potential lacuna is connected with a closed vacuum tubule (3). After removing the vacuum state between the crystal tablets (for example, shearing off the tubule), gas or liquid enter in the potential lacuna, making a cavity (4) formed between two crystal tablets and adjacent crystal tablets separated. Along a rip line (5) tearing the crystal tablets floating above and the tubule, to remove or reduce the extra degrees of the crystal, makes the crystal return to orthophoria or reduce the degree of shortsightedness. The utility model has the advantages of that: the utility model can change the diopter of the original embedded artificial crystal, in order to adjust the diopter of the artificial crystal eye.

Description

A kind of artificial intraocular lenses

[technical field]

This utility model relates to a kind of biomaterial for medical purpose, particularly a kind ofly can disassemble in the capsule bag, in order to regulate the dioptric artificial intraocular lenses of postoperative.

[background technology]

At present, the artificial intraocular lenses's of clinical middle utilization diopter is fixed, and after the implantation, crystalline diopter is immutable.Yet the diopter that is not all patients is unchangeable, and child particularly increases with the growth axis oculi at age, and refractive status develops towards the direction of myopia generally.In clinical, it is very difficult that child's congenital cataract postoperative artificial intraocular lenses selects.If the refractive status of postoperative artificial intraocular lenses eye, is grown up the back for facing because the growth of axis oculi then inevitably develops into myopia (mostly being high myopia greatly); High myopia occurs if prevent to grow up, and reduce artificial intraocular lenses's the number of degrees, then the refractive status of postoperative artificial intraocular lenses eye is a hypermetropia, and eyeball is grown under the state of this optics out of focus, may further promote developing of myopia; The people is that the hypermetropia that causes also affects the visual development of infant, and even finally develops into irreversible amblyopia.The child of some monocular cataracts also is faced with, the problem that postoperative two refraction of eyies are irregular, and artificial intraocular lenses's selection is then more difficult.If child's postcataract can be implanted a kind of artificial intraocular lenses of diopter-adjustable, during implantation, the refractive status of infant is for facing; When the back axis oculi of growing up comparatively stablize, remove the unnecessary number of degrees of crystal, make it to return, then be expected to solve the awkward situation that present child's postcataract artificial intraocular lenses selects in facing or reducing the near-sighted number of degrees.Therefore, how to provide a kind of diopter adjustable artificial intraocular lenses, become a problem that urgency is to be solved for clinical.

[summary of the invention]

The purpose of this utility model is to overcome the deficiencies in the prior art part, and a kind of disassembled adjusting diopter artificial intraocular lenses is provided.

The purpose of this utility model is achieved in that two or two above artificial intraocular lenses's sheets (1) is closely attached, and forms potential lacuna (2) between the crystal wafer, and the latter links to each other with airtight tubule (3).

The beneficial effects of the utility model are can change the artificial intraocular lenses's of former implantation diopter, to reach the diopter of adjusting artificial intraocular lenses's eye.

[description of drawings]

Fig. 1 is a front schematic view of the present utility model;

Fig. 2 is a generalized section of the present utility model;

Fig. 3 is a generalized section behind this utility model releasing vacuum state;

Fig. 4 is the sketch map that this utility model removes the top crystal wafer

The figure number explanation:

1---artificial intraocular lenses's sheet 2---potential lacuna 3---tubule

4---cavity 5---tear line

[specific embodiment]

The utility model is described in further detail below in conjunction with drawings and Examples.

The technical scheme that its technical problem that solves this utility model adopts is: with artificial intraocular lenses's sheet (1) of two or the certain number of degrees of multi-disc, make it to be attached to closely together with the absorption affinity of itself between vacuum and the crystal wafer, make and form a potential lacuna (2) between the crystal wafer, each potential lacuna links to each other with an enclosed vacuum tubule (3), tubule places crystalline ambitus, and tear line (5) is set along the crystal ambitus in addition.Behind the vacuum state of removing between the crystal wafer (as breaking tubule), gas or liquid enter potential lacuna, and the crystal wafer of top floats, and make to form a cavity (4) between two crystal wafers, and adjacent crystal wafer separates.The crystal wafer and the tubule that the top are floated along tear line (to be similar to the mode of tearing capsule continuously) remove together, to remove or to reduce the unnecessary number of degrees of crystal, make it to return the number of degrees in facing or reduce myopia.

The diopter-adjustable artificial intraocular lenses is implanted in the lenticular capsule bag of people, treat that eyeball development is more complete, after diopter is comparatively stable, carry out second operation again.In the anterior chamber, the vacuum tubule that connects two crystal wafers is broken, after gas or liquid enter tubule, form cavity between the crystal wafer of the crystal wafer that desire is removed and below reservation, tubule is together removed together with the potential tear line that the crystal wafer of top prolongs through special handling.For example: the patients with congenital cataract at two years old age, implant the artificial intraocular lenses of the number of degrees+30D after, its refractive status is for facing, but the growth of the axis oculi after growing up can make it to change into high myopic eye; Implant the crystalline number of degrees if postoperative reduces, then may reduce the near-sighted number of degrees after growing up, but the early stage hypermetropia state of postoperative may make infant form irreversible amblyopia.If that implant is the dioptric artificial intraocular lenses of a slice scalable, the refractive status of postoperative artificial intraocular lenses eye can guarantee the visual development of infant for facing; After the boundary grows up, remove or reduce the unnecessary number of degrees of artificial intraocular lenses, can make it to return the number of degrees (number of degrees of artificial intraocular lenses's sheet of removal are predicted according to clinical experience) in facing or reduce myopia.

Claims (3)

1, a kind of artificial intraocular lenses is characterized in that two or two above artificial intraocular lenses's sheets (1) are closely attached, and forms potential lacuna (2) between the crystal wafer, and the latter links to each other with airtight tubule (3).

2, artificial intraocular lenses according to claim 1 is characterized in that tubule (3) places the crystal ambitus.

3, artificial intraocular lenses according to claim 1 and 2 is characterized in that being provided with along the crystal ambitus tear line (5).

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