CN2640445Y

CN2640445Y - Eye tracking reflecting sheet ring of quasi-molecular laser therapeutic machine

Info

Publication number: CN2640445Y
Application number: CN 03277607
Authority: CN
Inventors: 陈寅方
Original assignee: Suzhou Liuliu Vision Technology Co ltd
Current assignee: Suzhou Liuliu Vision Technology Co ltd
Priority date: 2003-08-11
Filing date: 2003-08-11
Publication date: 2004-09-15
Anticipated expiration: 2013-08-11

Abstract

The utility model discloses an eye tracking reflection film loop of quasi-molecule laser therapy apparatus; which is characterized in that the outer edge of the reflection film loop is in an oval shape with a circular hole at the center, and a groove is arranged on the reflection film loop along the major axis direction of the oval; the utility model has the advantages of fixing the reflection film and preventing laser to hit non-operation field of eye cornea; furthermore, a groove that can protect lifted corneal flap free from pressure in lasik operation is arranged in horizontal direction.

Description

The eye of excimer laser treatment machine is followed the tracks of reflective loop

Technical field

This utility model relates to a kind of excimer laser therapeutic instrument for ophthalmology.

Background technology

The excimer laser therapeutic instrument for ophthalmology grew up in recent years, be used for the treatment of the not positive armarium of ophthalmic refractive, in operation process, bring invisible surgical errors in order to prevent that eyeball from rotating to treatment, we have invented the infrared guidance eye tracking system, and this system utilizes infrared external reflection to reach the tracking purpose, need the cooperation of one piece of infrared reflecting sheet, in order to fix this reflecting piece in human eye, we have attempted the whole bag of tricks and have been used for fixing this reflecting piece, to cooperate the operate as normal of eye track system.

Wherein one for utilizing a kind of 30 degree angles that have, and diameter is about the circular sponge matter that adhesion is arranged of 3mm, and reflecting piece is affixed on the circular sponge, invests on the oval papery thin slice after in aggregates, can place eyes cheek side after the sterilization, cooperates eye tracking work.This device has been considered the gradient problem of eyeball, adopted the compensation at 30 degree angles, but it is the individual value approximately of estimating, because the discordance of eyeball diameter causes the horizontal positioned that can not keep reflecting piece to the angle of inclination, and its maximum weak point is, the papery thin slice is difficult to be fixed on the eyes, when doing the lasik operation, need start cornea flap, then placement is more difficult, and produces the uncertain factor that influences surgical effect.

Summary of the invention

The purpose of this utility model is: provide a kind of eye of excimer laser treatment machine to follow the tracks of reflective loop, it had both had the fixedly effect of reflecting piece, possessed again and prevent that laser from getting to the function of the non-operative region of eye cornea, and its horizontal direction design has specially at making the not groove of pressurized of the cornea flap that starts in the lasik operation.

The technical solution of the utility model is: a kind of eye of excimer laser treatment machine is followed the tracks of reflective loop, and the outer ovalize of this reflective loop, center are provided with circular hole, and the diameter of circular hole is greater than at least by the diameter of operator cornea.

The further technical scheme of this utility model is: a kind of eye of excimer laser treatment machine is followed the tracks of reflective loop, and the outer ovalize of this reflective loop, center are provided with circular hole, and the diameter of circular hole is greater than at least by the diameter of operator cornea; Described reflective loop is provided with groove along the long axis of ellipse direction.

The utility model has the advantages that:

1. this utility model has reasonably been finished the fixedly function of reflecting piece, and is easy to operate.

2. contour structures of the present utility model has had both and has prevented that laser from getting to the function of the non-operative region of eye cornea.

3. the custom-designed groove structure of this utility model has adapted to the needs of doing the lasik operation.

4. aspect economy, this utility model is simple and reasonable, cost of manufacture is low, can be recycled.

Description of drawings

The utility model will be further described below in conjunction with drawings and Examples:

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

Fig. 2 is a vertical view of the present utility model;

Fig. 3 is a left view of the present utility model;

Fig. 4, Fig. 5 are user mode sketch map of the present utility model.

Wherein: 1 reflective loop; 2 circular holes; 3 grooves.

The specific embodiment

Embodiment: as Fig. 1, Fig. 2, Fig. 3, Fig. 4, shown in Figure 5, a kind of eye of excimer laser treatment machine is followed the tracks of reflective loop, adopt the 1Cr18Ni9 steel material to make, outer ovalize, the center of this reflective loop (1) is provided with circular hole (2), circular hole (2) can be divided into 8.5 millimeters three kinds of specifications of 8 millimeters of 7.5 millimeters of Φ, Φ, Φ, reflective loop (1) is along being provided with groove (3) on the long axis of ellipse direction, the width of groove (3) is 6 millimeters.

This utility model has reasonably been finished the fixedly function of reflecting piece, and is easy to operate; Contour structures of the present utility model has had both and has prevented that laser from getting to the function of the non-operative region of eye cornea; The custom-designed groove structure of this utility model has adapted to the needs of doing the lasik operation; Aspect economy, this utility model is simple and reasonable, cost of manufacture is low, can be recycled.

Claims

1. the eye of an excimer laser treatment machine is followed the tracks of reflective loop, and it is characterized in that: outer ovalize, the center of this reflective loop (1) is provided with circular hole (2), and the diameter of circular hole (2) is greater than at least by the diameter of operator cornea.

2. the eye of excimer laser treatment machine according to claim 1 is followed the tracks of reflective loop, and it is characterized in that: described reflective loop (1) is provided with groove (3) along the long axis of ellipse direction.