CN104510545A - Suspension type artificial lens - Google Patents

Abstract

A suspension type artificial lens comprises a central lens and linear loops; the central lens is made from hydrophilic acrylic ester and the two sides of the central lens are convex-circular; the linear loops are made from polypropylene lines; three sharp bodies protruded toward one side are uniformly distributed around the central lens; each lens corresponds to one linear loop; the linear loops pass through the sharp bodies and the central lens and the middle parts are fixed by the sharp bodies and the central lens; and a positioning hole is arranged around each sharp body. The suspension type artificial lens has the advantages that the artificial lens can be quickly fixed by the linear loops during operation, the operation efficiency is high and the iatrogenic traumas are reduced remarkably.

Description

A kind of suspension artificial intraocular lenses

Technical field

The present invention relates to a kind of artificial intraocular lenses, especially a kind of Sutureless iris under the former film supporting condition of shortage

Fixing posterior chamber type linear loop artificial intraocular lenses.

Background technology

Posterior capsule rupture after traumatic cataract, intracapsular cataract extraction and in cataract ultrasonic emulsification process, particularly vitrectomy in recent years, need in art to excise crystalline lens, when all these support without enough Lens capsular, although some patients can select intraocular Anterior chamber to implant, it is recent and long term complication is more, at present, people are more prone to select row suspension intraocular lens implants to correct the refractive status of aphakia in this case.At present, ciliary groove suspension intraocular lens implants possesses all advantages of Post-SARS times, complication is less, therefore a kind of art formula that the aphakia Intraocular implantation being considered to support without pouch is ideal, traditional suspension artificial intraocular lenses is climbed by the opticator of central authorities and two and forms, there is a hole in each face of climbing up, fix for suture, be sutured in ciliary groove, be commonly called as and two climb fixation, there are two shortcomings in this kind of fixing means: artificial intraocular lenses can not reach completely firm, easily occurs tilting; Suture is not easy to fix.

It is artificial that ZL201020149248.1 discloses a kind of linear loop iris Suspending fixation posterior chamber type, although the step of operation greatly can be simplified, but because linear loop is not fixed, in operation process, often occur that linear loop is drawn out of, or linear loop slidably reciprocates and cannot accurately sew up, firmly pullling line style button loop also can make artificial intraocular lenses be out of shape, and affects the use of the implanted person of crystal.

Summary of the invention

The object of the invention is to, a kind of artificial intraocular lenses of energy fixed linear button loop is provided, the process that quick worker states can be added, improve the efficiency that hands is stated, the Iatrogenic injury of all right significantly reduction operation.

For solving the problems of the technologies described above, the technical solution adopted in the present invention is: a kind of suspension artificial intraocular lenses, comprises central crystal, linear loop; Central authorities' crystalline material is hydrophilic acrylate, its two sides is convexity; Described linear loop material is that polypropylene line is made; Three, the sharp body raised to one side is evenly distributed with at described central crystal periphery, the corresponding linear loop of each described sharp body, linear loop is fixed by sharp body, central crystal through sharp body and central crystal, intermediate portion, is provided with a locating hole at described each sharp body periphery.

Further, central crystal edge is provided with semicircle block outwardly.

Further, sharp body cross section is triangle, and the height of sharp body is 0.5mm.

All right, locating hole is 1.5mm apart from sharp body edge.

A kind of suspension artificial intraocular lenses provided by the invention, the mid portion of linear loop is fixed by the sharp body with central crystal one, locating hole is passed from central crystal opposite side in linear loop one end, with linear loop other end the same side at central crystal, compared with the existing technology, tool has the following advantages: the linear loop of suspension artificial intraocular lenses is fixed on central crystal, and fixing operation is simple, drastically reduce the area operation technique and Iatrogenic injury; Belong to posterior chamber intraocular lens, disturb little to aqueous humor dynamic and corneal endothelium; The Aisan partially shallow to anterior chamber is safer.

Accompanying drawing explanation

Below in conjunction with drawings and Examples, the invention will be further described:

Fig. 1 is the artificial crystal structure schematic diagram of the present invention.

Fig. 2 is that the present embodiment artificial intraocular lenses uses flow chart ().

Fig. 3 is that the present embodiment artificial intraocular lenses uses flow chart (two).

Fig. 4 is that the present embodiment artificial intraocular lenses uses flow chart (three).

Fig. 5 is that the present embodiment artificial intraocular lenses uses flow chart (four).

1-central authorities crystal in figure, 2-locating hole, 3-linear loop, the semicircle block of 4-, 5-point body.

Detailed description of the invention

See books 1, a kind of suspension artificial intraocular lenses, comprises central crystal 1, linear loop 3; Central authorities' crystal 1 material is hydrophilic acrylate, its two sides is convexity; Linear loop 3 material is that polypropylene line is made; Described central crystal 1 periphery two point, 6 points, 10 be distributed with three, the sharp body 5 raised to one side, point body 5 cross section is triangle, the height of point body 5 is 0.5mm, the corresponding linear loop 3 of each described sharp body 5, linear loop 3 passes sharp body 5 and central crystal 1, intermediate portion is fixed by sharp body 5, central crystal 1, is that 1.5mm place is provided with a locating hole 2 at described each sharp body 5 edge; Central authorities 3, crystal 1 edge and 9 directions are provided with semicircle block 4 outwardly; Linear loop 3 is passed by locating hole 2 through central crystal 1 end, makes linear loop 3 two end in the side of central crystal 1.

During use, see Fig. 2, cut off at 3, eyeball and 9 place's conjunctivas, be separated, expose sclera, forms an opening, 2 points, two ends of linear loop 3 of 10 are passed and 10 points of eyeball at 2 from conjunctiva inwall to outer wall respectively;

See Fig. 3, make the sharp body 5 on 1 two, central crystal and 10 directions and conjunctiva inwall close contact, make suspension artificial intraocular lenses be about half and enter opening, semicircle block 4 just in time has half to enter opening;

See Fig. 4, with taking the photograph son, central crystal 1 is upwards dug, linear loop 3 two end corresponding to central crystal 1 six directions passes 6 directions of eyeball from conjunctiva inwall to outer wall;

See Fig. 5, make the sharp body 5 on central crystal 1 six directions and conjunctiva inwall close contact, suspension artificial intraocular lenses is made about all to enter opening, 9 can be strengthened the area of central crystal 1 in these two with first circular block 4 of 3 directions, can effectively overcome hands to state in process 9 with 3 direction enlarged open after central crystal temperature 1 all cannot cover opening.

After central authorities' crystal 1 all implants opening, slowly strain six terminations of three linear loops 3, after stable, same linear loop two end line is tied a knot mutually, finally toe-in is embedded in below scleral valve, sews up scleral flap and bulbar conjunctiva.

Claims (4)

1. a suspension artificial intraocular lenses, is characterized in that: described suspension artificial intraocular lenses comprises central crystal, linear loop; Central authorities' crystalline material is hydrophilic acrylate, its two sides is convexity; Described linear loop material is that polypropylene line is made; Three, the sharp body raised to one side is evenly distributed with at described central crystal periphery, the corresponding linear loop of each described sharp body, linear loop is fixed by sharp body, central crystal through sharp body and central crystal, intermediate portion, is provided with a locating hole at described each sharp body periphery.

2. a kind of suspension artificial intraocular lenses according to claim 1, is characterized in that: described central crystal edge is provided with semicircle block outwardly.

3. a kind of suspension artificial intraocular lenses according to claim 1, it is characterized in that: described sharp body cross section is triangle, the height of sharp body is 0.5mm.

4. a kind of suspension artificial intraocular lenses according to claim 1, is characterized in that: described locating hole is 1.5mm apart from sharp body edge.