CN2812880Y

CN2812880Y - Automatic straight-in, pressureless, visual intelligent corneal epithelium knife

Info

Publication number: CN2812880Y
Application number: CNU2005200443294U
Authority: CN
Inventors: 褚仁远; 张宝华; 吴良成
Original assignee: KANGMING MEDICAL EQUIPMENT CO Ltd WUXI CITY
Current assignee: KANGMING MEDICAL EQUIPMENT CO Ltd WUXI CITY
Priority date: 2005-08-17
Filing date: 2005-08-17
Publication date: 2006-09-06
Anticipated expiration: 2015-08-17
Also published as: WO2007019748A1

Abstract

The utility model discloses an automatic straight-in, pressureless, visual intelligent corneal epithelium knife. The utility model is characterized in that the utility model comprises a double-motor component, a sucking ring component and a straight-in separating knife head, wherein the sucking ring component comprises a sucking ring and a handle, the inside face of the sucking ring is provided with a circumference slot and the sucking opening position of the sucking ring is provided with an eyebrow slot. The straight-in separating knife head comprises a body of the straight-in separating knife head and a separating sheet, the separating sheet is clamped in the structure of the body of the straight-in separating knife head, and the body comprises a connecting part which can be connected with the double-motor component in a detachable way. The opposite side of the connecting part is a separating sheet base, both ends of the separating sheet base are respectively extended with an extending part by using the connecting part as a symmetrical center and the separating sheet base between the extending parts is provided with a clamping base which is provided with the separating sheet in a clamping way. When the utility model is used, the corneal epithelium and a hypothallus can be directly and automatically separated by the mechanical force under the condition of no pressure. Besides, the body of the straight-in separating knife head has no front plane, and the whole operation course can be seen.

Description

A kind of automatically, dead-beat, no pressure, visible intelligent epi-microkerotome

Technical field

This utility model relates to a kind of ophthalmic operating set, under particularly a kind of active epithelial flap that corneal epithelium is separated with mechanical force excimer laser mill edge art adopted a kind of automatically, dead-beat, no pressure, visible intelligent epi-microkerotome.

Background technology

Laser in situ keratomileusis (Laser in Situ Keratomileusis) is called for short the ophthalmology refraction correction surgery of LASIK, be that the corneal lamellar face is cut, preserve the bowman's lamina of corneal epithelium, the corneal hypothallus is implemented its curvature of laser cutting correction, thus myopia correction, astigmatism and hypermetropia.But from the effect of operation, LASIK can bring adverse consequencess such as aberration is big, corneal complication, dazzle, and corneal is thin, need the high patient of the correction number of degrees that its limitation is arranged again.Though used LASEK afterwards, promptly use ethanol infusion epithelium, to making epithelium a kind of approach has been arranged, because the problem that it irritates greatly, operating time is long, operating difficulty is big, post-operative recovery is slow, individual difference is big also is difficult to extensively carry out.Along with the introducing of wave front aberration, the prescription of quasi-molecule operation is more and more higher, carry out the individuation cutting, makes having proposed requirements at the higher level with regard to the corneal lobe.

Enter into the second half year in 2003, abroad had a kind of without ethanol, and the method for directly separating epithelium, i.e. Epi-LASIK with mechanical force.The applicant is called the international patent of invention (PCT/CN2004/000741) of " cornea epithelium segregation apparatus automatically " in application on July 5th, 2004 name, this patent application be rotary EPi-LASIK, in order to satisfy different doctors' operation needs, when operation needed to adopt irrotational straight line feed (EPi-LASIK) occasion, above-mentioned automatic cornea epithelium segregation apparatus can't be used.

Summary of the invention

The purpose of this utility model patent is; a kind of mechanical force separation of corneal epithelium device is provided; quickly and easily corneal epithelium (tape base counterdie) and corneal stroma are separated; it is without ethanol and other chemical agent; avoid epithelium loosening; but carry out the floating type separation of epithelium continuously, protect isolating epithelial flap and separated epithelium substrate.

To achieve these goals, this utility model adopts following technical scheme, a kind of automatically, dead-beat, no pressure, visible intelligent epi-microkerotome, it is characterized in that, comprising:

The a pair of electric machine assembly;

Inhale ring assemblies, comprise that one inhales ring and handle, offer the circumference groove, offer the eyebrow groove at the suction inlet place of described suction ring at the medial surface of described suction ring;

Directly advance to separate cutter head, comprise and directly advance to separate cutter head body and separating sheet, described separating sheet is fastened on directly advances to separate in the cutter head body construction, described body comprise one with the bi-motor assembly between detachably with the connecting portion that is connected, the opposite side of described connecting portion is a separation bar, the two ends of described separation bar are that symmetrical centre is stretched out the formation extension respectively along connecting portion, offer the deck that card is established separating sheet on the separation bar between this extension.

Description of drawings

Below, with reference to accompanying drawing, for those skilled in the art that, to the detailed description of the present utility model, above-mentioned and other purposes of the present utility model, feature and advantage will be apparent.

Sketch map when Fig. 1 is the application of this utility model device;

Fig. 2 is the exploded perspective view of miniature corneal epithelium separator 2 of the present utility model;

Fig. 3 is the axonometric chart that dead-beat is separated cutter head body 6 among Fig. 2;

Fig. 4 is an axonometric chart of inhaling ring 17 among Fig. 2;

Fig. 5 is that packed into the dead-beat of separating sheet 7 is separated the sketch map of cutter head 3;

Fig. 6 is the hot pressing sketch map of separating sheet 7.

The specific embodiment

Automatic dead-beat of the present utility model does not have the structural representation of pressure visible intelligent epi-microkerotome under in working order, comprise the interconnected safe negative pressure control chamber 1 and the type corneal epithelium separator 2 that always advances to decline, in this control chamber 1, be equiped with direct current drive double pump 10 and as the accumulator 11 in pump power source, the miniature corneal epithelium separator 2 of dead-beat links to each other with control chamber 1 by moisture separator 18.High speed direct current generator 8, low-speed DC motor 9 and corresponding drive mechanism are housed in the bi-motor assembly 5.

Fig. 2 provides the decomposing schematic representation of the miniature corneal epithelium separator 2 of dead-beat.This separator 2 is whole device main body among Fig. 1.Separated the suction ring assemblies 4 and the bi-motor assembly 5 of cutter head 3, a band handle by the dead-beat of working in coordination and form, dead-beat is wherein separated cutter head 3 and is comprised dead-beat separation cutter head body 6 and separating sheet 7 two parts.

Fig. 3 has provided dead-beat and has separated to the end the structure that dead-beat is separated cutter head body 6 in 3, this body 6 comprise one with bi-motor assembly 5 between detachably with the connecting portion 61 that is connected, the opposite side of this connecting portion 61 is separation bars 62, the two ends of this separation bar 62 are stretched out respectively for symmetrical centre along connecting portion 61 and are formed extension 631,632, offer card establish the deck 64 of separating sheet 7 on the separation bar 62 between this extension, Fig. 5 has provided separating sheet 7 and has packed into and directly advance to separate the structural representation that dead-beat behind the cutter head body 6 is separated cutter head 3.This structure can be further referring to the applicant's a utility model patent (ZL200420023091.2).

Fig. 4 has provided the structure of inhaling ring assemblies 4, authorize the improvements of utility model patent (ZL01143742.1, ZL01279997.1) to be with the applicant in two of calendar year 2001s, be provided with peripheral groove 12 at the medial surface of inhaling ring assemblies 4, and added an eyebrow groove 14 at suction inlet place 13, guaranteed that suction ring assemblies 4 negative pressure line are unblocked, negative pressure reliable and stable created essential condition smoothly for operation.Fig. 6 adopts the handle of a knife 15 that forms after the high temperature hot pressing and the separating sheet 7 of blade 16, adopts resistant to elevated temperatures plastic injection-moulded into a single integrated structurely usually, thereby separating sheet can sterilize repeatedly, reuses.

Before the cutting corneal epithelium, separating sheet 7 is inserted dead-beat separate behind the cutter head bodies 6 dead-beat to be separated cutter head 3 and inhale ring assemblies 4 and join together with bi-motor assembly 5 and form corneal epithelium separator 2, and then constitute respectively by quad line and vacuum trachea and negative pressure control chamber 1 and to separate a drive system and a negative pressure of vacuum system.

Inhaling ring assemblies 4 under the suction function of control chamber 1 output reliablely and stablely is adsorbed on the eyeball, when implementing the feed operation, start high speed direct current generator 8, make separating sheet 7 in separating cutter head body 6, do to move back and forth at a high speed, low-speed DC motor 9 drives dead-beat to be separated cutter heads 3 and is pasting on the suction ring assemblies 4 plane and do straight line feed campaign, under anterior corneal surface was in pressure-less state, floating type continuous separation epithelial layer was stopped by stop when dead-beat is separated cutter head 3 arrival eventually to the position.Implement the withdrawing operation immediately, 9 counter-rotatings of low-speed DC motor drive dead-beat separation cutter head 3 and return to the home position.

In the embodiment of this patent, EPi-LASIK and LASIK can shared control chambers 1; A shared bi-motor assembly 5; A shared cover is inhaled ring assemblies 4; Only use different dead-beat instead and separate cutter head body (cutter head) 6 and separating sheet (blade) 7, just can finish Epi-LASIK and LASIK respectively, referring to Fig. 1, Fig. 2.

The eyeball epithelium is not subjected to separating from dead-beat the normal pressure of cutter head body 6 in the cutting process, and operation directly comes automatic separation of corneal epithelium and hypothallus with mechanical force under pressure-less state.So the epithelial flap of postoperative is very perfect, no any abnormal conditions such as tear, and fundamentally solved the possibility of substrate lobe complication.And dead-beat separation cutter head body 6 no frontal planes, the whole surgery process is visual.Referring to Fig. 3.

It is a kind of dock formula flexible separator that dead-beat is separated cutter head 3, and separating sheet 7 is not to be rigidly connected in separating cutter head body 6, but fluctuates in separating cutter head body 6 cutter grooves with certain interval.Separate epithelium under the state of cornea with pliable pressure.Like this, cutting epithelium, separating in epithelium and the hypothallus process, separating pressure to hypothallus has given flexible adjustment along with separating cutter head body 6 in the upper and lower sloping process of cornea, solved cornea since the extruding of upper and lower slope angle film pile up with separate cutter head body 6 pairs of hypothallus separating pressures progressively rigidity cause damaging the difficult problem of hypothallus, epithelial survival rate height, epithelial cell more than 80% still can be survived, and makes the back that resets, the edge of lobe evenly paste clothes.Therefore the described corneal epithelium separator 2 of this patent is the intelligent corneal epithelium separators with substrate identification ability.

More than all embodiment only for the explanation this utility model usefulness, but not to restriction of the present utility model, person skilled in the relevant technique, under the situation that does not break away from spirit and scope of the present utility model, can also make various conversion or variation, so all technical schemes that are equal to also should belong to category of the present utility model and should be limited by each claim.

Claims

1, a kind of automatically, dead-beat, no pressure, visible intelligent epi-microkerotome, it is characterized in that, comprising:

The a pair of electric machine assembly;

2, epi-microkerotome according to claim 1 is characterized in that, described separator is a dock formula flexible separator.

3, epi-microkerotome according to claim 2 is characterized in that, establishes two direct current small and special electric machines in the described bi-motor assembly.

4, epi-microkerotome according to claim 1 is characterized in that,

Described separating sheet comprises blade and handle of a knife two parts.

5, epi-microkerotome according to claim 4 is characterized in that,

Described handle of a knife and blade form for the high-temperature resistance plastice integrated through injection molding.