CN2374154Y

CN2374154Y - Artificial cornea

Info

Publication number: CN2374154Y
Application number: CN 99235558
Authority: CN
Inventors: 梁丹; 陈家祺
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-03-15
Filing date: 1999-03-15
Publication date: 2000-04-19
Anticipated expiration: 2009-03-15

Abstract

The utility model discloses an artificial cornea, composed of three parts of a circumference part, a central cylinder lens, and a fixed ring around the circumference of the cylinder lens. The cylinder lens forms a convex shape, the surface at the lower part is carved with a screw thread, the circumference is made of pure gold, and the middle is provided with a hole which is sheathed on the cylinder lens; the circumference of the cylinder lens is fixedly and around sheathed at the upper part of the cylinder lens for fixing the cylinder lens and the circumference. The artificial cornea of the utility model has the advantages of fine stability, hardly easy to dissolve after being implanted, hardly easy to fall off, and good resume to visual function of a patient.

Description

The artificial cornea

This utility model relates to a kind of artificial cornea.

The artificial cornea is unique effective way for the treatment of the corneal opacity patient that corneal transplantation can not recover lost eyesight at present.Existing artificial cornea mostly is the penetrating type artificial cornea, is made up of central part and periphery, and central part is the post mirror of being made by light transmission good optical material, is artificial cornea's opticator, and it recovers the optical channel of eye through the holostrome of cornea; Periphery is implanted it in corneal lamellar for being fixed in the disc-shaped structure around the post mirror, and performance is supported, the fixedly effect of central optic branch.Because there is the influence of aspect factors such as defective and post mirror unreasonable structure in the performance of currently used periphery material material, make artificial cornea's instability, corneal solution, leakage of aqueous humor appear after the implantation, the artificial cornea deviates from and complication such as endophthalmitis, brings very big misery to the patient.

The purpose of this utility model provides and a kind ofly can fix preferably, complication is few, and visual function recovers good artificial cornea.

The technical solution of the utility model is achieved in that the artificial cornea is made up of periphery, central rods mirror, post mirror periphery retainer ring three parts.The post mirror is " protruding " font, and lower surface is carved with screw thread; Perforate in the middle of the periphery is enclosed within on the post mirror; Post mirror periphery Fixing shrink ring is on the top of post mirror, and post mirror and periphery is fixing.

Periphery in this utility model adopts native gold to make, and the surface makes many apertures.

Prove through zoopery and clinical practice: this utility model artificial cornea has excellent biological compatibility, implants the back cornea and is difficult for dissolving, is difficult for deviating from, and patient's visual function recovers.

Below in conjunction with drawings and Examples this utility model is described in further detail.

Accompanying drawing 1 is looked sketch map for this utility model artificial cornea's master;

Accompanying drawing 2 is this utility model artificial cornea vertical view.

Artificial cornea embodiment as shown in Figure 1 is made up of periphery 2, central rods mirror 1, post mirror periphery retainer ring 3 three parts, and central rods mirror 1 is " protruding " font, and lower surface is carved with screw thread, and its length makes the end that screws in rear lower enter the anterior chamber of eye;

Periphery 2 is made for 24K proof gold paper tinsel, is the sphere arc, and there is larger aperture the centre, to be enclosed within on the post mirror, makes many apertures on native gold.Periphery 2 is enclosed within on the central rods mirror 1, and the position of contact scribbles biogum.

Retainer ring 3 is positioned at periphery more than 2, is enclosed within central lens 1 top, and by periphery 2 and central rods mirror 1 are pressurizeed, the biogum in conjunction with two contact surfaces is fixed together.

Because helicitic texture has been adopted in this utility model artificial cornea's central rods mirror 1 bottom, artificial cornea's installation in not only being convenient to perform the operation, and help combining closely of post mirror 1 and cornea tissue, help reducing the seepage of operation back aqueous humor, form the anterior chamber rapidly, reduce complication.

Periphery in this utility model adopts the 24K native gold, has excellent biological compatibility, stable in tissue, to the surrounding tissue avirulence, aperture by manual manufacture and cornea produce biological healing, have solved the problem of selecting for use of artificial cornea's periphery material of always perplexing the medical personnel for a long time.

Further instruction has been made to this utility model in the front.But those of ordinary skill in the art can do modification or change and without prejudice to its substitutive characteristics and main idea to a certain degree.

Claims

1. an artificial cornea comprises central rods mirror (1) and periphery (2), it is characterized in that: central rods mirror (1) is " protruding " font, and lower surface is carved with screw thread, and its length makes that screwing in its underpart, back end enters the ophthalmic anterior chamber;

Periphery (2) is the sphere arc, and periphery is made for 24K proof gold paper tinsel.Make many apertures, the centre has than macropore, is enclosed within on the central rods mirror (1);

Peripheral retainer ring (3) is arranged above the periphery (2), be enclosed within the top of central lens (1).

2. artificial cornea according to claim 1 is characterized in that: periphery (2) scribbles biogum with the position that central rods mirror (1) contacts.