CN102600010B - Microscopic flap lifting device used in LASIK (laser-assisted in situ keratomileusis) operation for femtosecond flap making - Google Patents
Microscopic flap lifting device used in LASIK (laser-assisted in situ keratomileusis) operation for femtosecond flap making Download PDFInfo
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- CN102600010B CN102600010B CN2012100647968A CN201210064796A CN102600010B CN 102600010 B CN102600010 B CN 102600010B CN 2012100647968 A CN2012100647968 A CN 2012100647968A CN 201210064796 A CN201210064796 A CN 201210064796A CN 102600010 B CN102600010 B CN 102600010B
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Abstract
The invention relates to a microscopic flap lifting device used in LASIK (laser-assisted in situ keratomileusis) operation for femtosecond flap making, comprising a flap lifting part and a handle, wherein the flap lifting part is fixedly arranged on the upper end of the handle; the flap lifting part includes a straight rod section, an arc section and a flat spade section which are manufactured integrally and connectedly; the lower end of the straight rod section is coaxially connected with the upper end of the handle, the upper blunt angle turning of the straight rod section is connected with the arc section, the section diameter and conical degree of the arc section become smaller gradually, the terminal end of the arc section is connected with the flat spade section with oval tips, and the cross section of the flat spade section is centrally thick and peripherally thin in shape. The microscopic flap lifting device disclosed by the invention can thoroughly separate corneal stroma flaps and reduce corneal flap damage, corneal flap dissociation and other complications during separation process, and is helpful for completely lifting the flap; meanwhile, the oval flat chisel section can reduce separation difficulty caused by opaque bubble layer (OBL) and reduce the damage on corneal tissue caused by repeated operation, and is helpful for post-operative wound recovery.
Description
Technical field
The invention belongs to medical instruments field, relate to the micro-surgical instruments relevant with cornea refractive surgery, especially a kind of micro-lobe device that lifts for femtosecond lobe lasik surgery processed.
Background technology
Laser in Situ Keratomileusis (laser in situ keratomileusis, LASIK) is as the main flow art formula of current cornea refractive surgery, and its safety, effectiveness progressively obtain vast ametropia patient's extensive approval.The making of cornea flap is one of its committed step, extensively adopt at present miniature cornea lamellar blade to complete the making of cornea flap, but there is greater risk in it, be prone to the severe complication of some relevant lobes, as infull lobe, broken lobe, free flap, button lobe etc., have a strong impact on the carrying out of operation and the recovery of Postoperative visual acuity, caused the decline of visual quality.Femtosecond laser obtained U.S. FDA approval for cornea refractive surgery from 2000, be to act on cornea tissue by the light blasting principle, and the effect of its clean cut cornea tissue makes it become a kind of method of brand-new making cornea flap.Different from traditional microkeratome, the parameters such as position, size and limit corner cut of the thickness of femtosecond laser energy free setting cornea flap, diameter, the base of a fruit, improved safety and the predictability of making cornea flap greatly.Femtosecond lobe associating processed Excimer laser in situ keratomileusis (Femtosecond laser in situ keratomileusis, FS-LASIK), its operation principle is that femtosecond laser passes through the axicon lens vernier focusing of a non-pressing on default corneal stroma plane, can produce there is good homogeneity, accuracy and conforming corneal stroma lobe, corneal flap thickness can be set as between 80～160 μ m, then utilize the micro-lobe device that lifts that cornea flap is thoroughly separated rear and started, be placed in the conjunctiva side, for next step, to carry out excimer laser ready.Just because of this advantage, higher at diopter and embodied better in patient that corneal thickness is partially thin.Make thinner cornea flap, retain thicker residue substrate bed, enlarged operative indication, also reduce the risk of postoperative generation corneal ectasia.Yet thinner cornea flap makes, to lift lobe more difficult, thinner cornea flap is postoperative is prone to micro-gauffer, affect Postoperative visual acuity, can suitably increase the width of the base of a fruit for this reason, but to, for next step excimer laser provides enough optical zone, therefore the periphery cornea flap of base of a fruit below fully need to be separated simultaneously.
By retrieval, not yet find the patent document relevant to present patent application.
Summary of the invention
The purpose of this invention is to provide a kind of micro-lobe device that lifts for femtosecond lobe lasik surgery processed, at femtosecond lobe lasik surgery processed, safely and effectively cornea flap thoroughly being separated and started, be beneficial to next step excimer laser.
The objective of the invention is to be achieved through the following technical solutions:
A kind of micro-lobe device that lifts for femtosecond lobe lasik surgery processed, comprise and lift lobe section and handle, lift the upper end that lobe section is packed in handle, the described lobe section of lifting comprises straight bar section, arc section and flat chisel section, three in one connects to be made, and wherein the lower end of straight bar section coaxially is connected with the upper end of handle; The turnover of obtuse angle, straight bar section top is connected with arc section, and it is very thin that the diameter of section of arc section becomes gradually, and tapering successively decreases gradually, and its terminal connects oval most advanced and sophisticated flat chisel section, and this flat chisel section cross section is the thin form of central thick periphery.
And, being connected the section of turning back between described straight bar section and arc section, this section of turning back is to turn back in obtuse angle with straight bar section, the section of turning back and arc section are that the acute angle opisthotonos turns.
And, be shaped with anti-slip veins at the handgrip part of handle.
Advantage of the present invention and good effect are:
1, the present invention includes a geometric form head and is connected the horizontal handle of head with one, and the geometric form head of an end separates cornea flap and starts for femtosecond lobe lasik surgery processed process, for next step excimer laser ready; What connect head is horizontal handle, and its surface adopts anti-skidding processing, prevents the generation of slippage in operation process, makes operation technique safer, smooth.
2, the present invention can thoroughly separate the corneal stroma lobe, because of its nose-circle blunt, the complication such as cornea flap is damaged, free have been reduced in separation process, be beneficial to its complete starting, oval flat chisel section can reduce the damage that the separation difficulty caused because of opaque bubble layer (OBL) causes repeatable operation corneal tissue simultaneously, is beneficial to the recovery of postoperative wound.
3, the designed geometric form head of the present invention can have various ways, to adapt to the demand of different corneal curvatures, different corneal flap thicknesses, make every effort to farthest make operation process safer, smooth, cornea flap is separated more thorough, is beneficial to next step excimer laser.
The accompanying drawing explanation
Fig. 1 is structural front view of the present invention;
The top view that Fig. 2 is Fig. 1;
The structure enlarged drawing of the lobe section of lifting that Fig. 3 is Fig. 1;
The K that Fig. 4 is Fig. 1 is to enlarged diagram;
The A-A that Fig. 5 is Fig. 4 is to cross-sectional view;
The structural front view that Fig. 6 is the embodiment of the present invention 2;
The B-B that Fig. 7 is Fig. 6 is to the cross section cutaway view Amplified image;
The C-C that Fig. 8 is Fig. 6 is to the cross section cutaway view Amplified image;
The D-D that Fig. 9 is Fig. 6 is to the cross section cutaway view Amplified image.
The specific embodiment:
Below by specific embodiment, the invention will be further described, and following examples are descriptive, is not determinate, can not limit protection scope of the present invention with this.
Embodiment 1:
A kind of micro-lobe device that lifts for femtosecond lobe lasik surgery processed, as shown in Figure 1, 2, by lifting lobe section 1 and handle 2 forms, lift lobe section and be packed in the upper end of handle, handgrip part at handle is shaped with anti-slip veins 3, to prevent from occurring in operation process the slippage of apparatus, makes operation technique safer.
Lift the structure of lobe section as shown in Fig. 3,4,5, lift lobe section and connected and made by straight bar section a, arc section b and flat chisel section c one, wherein the upper end of the lower end of straight bar section and handle coaxially is fixedly mounted with, or one makes, and its cross section is circle; Along with the prolongation on straight bar section top, its diameter of section diminishes gradually, and approximately turnover after 1.5 centimetres, form the arc section that a section is obtuse angle with the straight bar section angle, and the cross section of this arc section is flat elliptic; Along with the prolongation of arc section length, its cross section horizontal diameter and perpendicular diameter diminish gradually, and it is very thin that arc section becomes gradually, tapering successively decreases gradually, the flat chisel section at the ellipse tip of its terminal connection diameter approximate number mm in size, this flat chisel section cross section is the thin form of central thick periphery, referring to Fig. 5.Because the cross section of arc section is flat elliptic, and its curvature approaches corneal curvature, reduced the resistance in the chorista process.Simultaneously, due to the cross section at the ellipse tip of flat chisel section be flat elliptic half, form the thin form of central thick periphery, can be used for the cornea flap of base of a fruit below is thoroughly separated, fully to expose the substrate bed, be beneficial to carrying out smoothly of next step excimer laser process.
Using method of the present invention is:
In femtosecond lobe lasik surgery processed process, after the femtosecond laser instrument completes the clean cut of cornea flap according to default corneal flap thickness in corneal stroma, that uses the present embodiment micro-ly lifts the separation that the lobe device carries out the corneal stroma lobe.At first enter gently the cornea flap otch with the flat chisel section tip of lifting lobe section, and slightly separate, by its tip and arc section, the cornea flap edge through having separated slowly stretches under cornea flap, utilize flat arc section isolated cornea lobe gently gradually, utilize the most advanced and sophisticated periphery cornea flap of thoroughly separating base of a fruit below of ellipse of flat chisel section; Through above processing, cornea flap is thoroughly separated, and it intactly can be started and is placed in the conjunctiva side.
The present invention can use medical stainless steel to make.
Embodiment 2:
A kind of micro-lobe device that lifts for femtosecond lobe lasik surgery processed, referring to Fig. 6,7,8,9.Its contour structures also comprises handle and lifts lobe section, and the structure of lifting lobe section and the embodiment 1 of the present embodiment are different.Below only with regard to the structure of lifting lobe section, be described below:
As shown in Figure 6, lift lobe section and comprise straight bar section, arc section and flat chisel section, but go back one between straight bar section and arc section, be shaped with a turn section d, this turn section and straight bar section are to turn back in obtuse angle; Turn section and arc section are that the acute angle opisthotonos turns.
Between straight bar section, turn section and arc section and the cross sectional shape of arc section respectively referring to Fig. 9, Fig. 8, Fig. 7..Concrete structure is narrated as follows:
The direct continuity that straight bar section is handle or be fixedly mounted with, its cross section is circular; Along with the prolongation of length, its diameter of section diminishes gradually, and it is very thin that straight bar section becomes gradually, approximately turnover after 1.5 centimetres, form the turn section that between a section and straight bar section, angle is obtuse angle, its cross section is circular, along with the prolongation of length, its diameter of section diminishes gradually, it is very thin that turn section becomes gradually, and after about 5mm, opisthotonos turns, and forms the arc section that between a section and turn section, angle is acute angle, its cross section is flat elliptic, referring to Fig. 7.Prolongation along with arc section length, its cross section horizontal diameter and perpendicular diameter diminish gradually, it is very thin that arc section becomes gradually, tapering successively decreases gradually, being transitioned into thus terminal is the flat chisel section at the ellipse tip of a diameter approximate number mm in size, Fig. 4 as described in Example 1, half that the cross section of flat chisel section is flat elliptic, form the thin form of central thick periphery.
Compared to embodiment 1, the curvature of the arc section of the present embodiment is slightly larger than embodiment 1, and the perpendicular diameter in cross section is large than embodiment 1; And the structure of both geometric form heads is difference to some extent also, considers the impact that as far as possible reduces terms of mechanics.Due to different patients' corneal curvature difference, simultaneously according to different diopters and corneal thickness, the corneal flap thickness difference of making, the complexity in separation process is also had any different.Above two kinds are micro-ly lifted the demand that the interstructural difference of lobe device has adapted to different patient's different situations, make every effort to farthest make operation process safer, smooth, and cornea flap is separated more thorough, can intactly it be started.
The above is two kinds of preferred embodiments of the present invention, and the equivalent structure that every this description of application and claim are done changes, and ought to be included in claim scope of the present invention.
Claims (2)
1. the micro-lobe device that lifts for femtosecond lobe Laser in Situ Keratomileusis processed, it is characterized in that: comprise and lift lobe section and handle, lift lobe section and be packed in the upper end of handle, the described lobe section of lifting comprises straight bar section, arc section and flat chisel section, three in one connects to be made, and wherein the lower end of straight bar section coaxially is connected with the upper end of handle; Obtuse angle, straight bar section top turnover is connected with arc section, and that the diameter of section of arc section becomes gradually is very thin, tapering successively decreases gradually, and its terminal connects the flat chisel section at ellipse tip, and this flat chisel section cross section is the thin form of central thick periphery;
Be connected a turn section between described straight bar section and arc section, this turn section and straight bar section are to turn back in obtuse angle, and turn section and arc section are that the acute angle opisthotonos turns.
2. the micro-lobe device that lifts for femtosecond lobe Laser in Situ Keratomileusis processed according to claim 1, it is characterized in that: the handgrip part at handle is shaped with anti-slip veins.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100647968A CN102600010B (en) | 2012-03-13 | 2012-03-13 | Microscopic flap lifting device used in LASIK (laser-assisted in situ keratomileusis) operation for femtosecond flap making |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100647968A CN102600010B (en) | 2012-03-13 | 2012-03-13 | Microscopic flap lifting device used in LASIK (laser-assisted in situ keratomileusis) operation for femtosecond flap making |
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| CN102600010A CN102600010A (en) | 2012-07-25 |
| CN102600010B true CN102600010B (en) | 2013-12-04 |
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| CN2012100647968A Expired - Fee Related CN102600010B (en) | 2012-03-13 | 2012-03-13 | Microscopic flap lifting device used in LASIK (laser-assisted in situ keratomileusis) operation for femtosecond flap making |
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| CN105935327A (en) * | 2016-06-14 | 2016-09-14 | 温州眼视光发展有限公司 | Phakic-intraocular-lens position adjusting instrument |
| CN109820641A (en) * | 2019-01-21 | 2019-05-31 | 江苏康视佳医疗器械有限公司 | A kind of corneal epithelium lifts valve device |
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| US5755700A (en) * | 1995-07-27 | 1998-05-26 | Michiel S. Kritzinger | Corneal irrigation cannula and method of using |
| CN1290476C (en) * | 2004-08-13 | 2006-12-20 | 浙江大学医学院附属邵逸夫医院 | Full embedding bed deep lamellar cornea grafting composite instrument |
| CN101203196A (en) * | 2005-04-27 | 2008-06-18 | 组织工程折射公司 | Epithelium laying device (V) and blade for the device |
| CN202288614U (en) * | 2011-06-28 | 2012-07-04 | 广州天河阿玛施医疗美容门诊部有限公司 | Lens corneal interlamellar dialysis device for full femtosecond laser operation |
| CN202568616U (en) * | 2012-03-13 | 2012-12-05 | 王雁 | Microscopic flap lifter for femtosecond-laser assisted flap-creation LASIK (laser in situ keratomileusis) surgery |
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Granted publication date: 20131204 Termination date: 20160313 |