CN201759734U - Cornea protector - Google Patents
Cornea protector Download PDFInfo
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- CN201759734U CN201759734U CN2010202842124U CN201020284212U CN201759734U CN 201759734 U CN201759734 U CN 201759734U CN 2010202842124 U CN2010202842124 U CN 2010202842124U CN 201020284212 U CN201020284212 U CN 201020284212U CN 201759734 U CN201759734 U CN 201759734U
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- cornea
- protection device
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- corneal protection
- contact layer
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Abstract
The utility model relates to a cornea protector which is characterized by comprising a circular cornea protector body (1); a concave cornea contact layer (2) is arranged on the inner side of the cornea protector body (1); the cornea protector body (1) and the cornea contact layer (2) are combined into a whole, and the cross section of the whole is in the shape of a concave half-moon or a half-moon. The cornea protector dose not injure cornea, and can protect the cornea through isolation and avoid the direct exposure of the cornea, thus effectively preventing strong light and scrapes, playing a role of keeping out the contempt sight and stabilizing the emotion of a patient. The cornea protector is designed completely according to the real physiological structure of the cornea, the diameter and the curvature radius are fitted with the cornea, a material with good histocompatibility is adopted for fabrication, and the cornea protector is convenient in wearing at the opposite sides, thus being safe and comfortable.
Description
Technical field
This utility model relates to a kind of operation auxiliary implement, specifically is a kind of eyes corneal protection device that plays buffer action when ophthalmologic operation or various operation general anesthesia.
Background technology
Cornea is the top layer of transparent window of eyeball (transparent configuration), and the tear film of surface coverage layer of transparent by its transparency, sensitivity and special metabolism thereof, is finished its normal physiological function.The anatomical factors of corneal transparency is its well-regulated epithelium, essence and endothelium.Corneal transparency is also by effect of its half dehydration, under epithelium and endothelium are complete itself and tear film, aqueous humor is isolated and keeps its dewatering state.
Cornea is most important dioptric composition, adds crystalline refractive power, and light just can focus on exactly and constitute image on the retina.Cornea has very responsive teleneuron, and if any foreign object contact cornea, eyelid just can close in spite of oneself with the protection eyes.In order to keep transparent, cornea does not have blood vessel, and promptly needed nutrition and oxygen mainly obtain by vasoganglion on every side, tear and square water.
Cornea is transparent fully, accounts for the preceding 1/6 of fibrous membrane, is seen as horizontal oval from the front.Adult male cornea transverse diameter meansigma methods is 11.04mm, and the women is 10.05mm, and perpendicular footpath meansigma methods male is 10.13mm, and the women is 10.08mm, and child's corneal diameter is near the adult more than 3 years old.Almost spherical in the circle of the about 4mm diameter of central authorities' lesser ring of Merkel, the radius of curvature of its each point is equal substantially, and mesozone and edge part cornea beyond the central area are comparatively flat, the each point radius of curvature is also unequal.Measure from facies anterior cornea, the horizontal direction radius of curvature is 7.8mm, and vertical direction is 7.7mm, and the radius of curvature of posterior face is 6.22-6.8mm.Corneal thickness each several part difference, central part is the thinnest, average out to 0.5mm, periphery is about 1mm.The front and rear surfaces of cornea can be similar to thinks that sphere, its radius of curvature value are respectively 7.7 millimeters (front surfaces) and 6.8 millimeters (rear surface).
Cornea can be divided into 5 layers on structure: epithelium layer, Bowman layer, hypothallus, Descemet film, endothelial layer.Corneal transparency and do not have blood vessel, but have abundant sensory nerve tissue, have certain shape, size, thickness and radius of curvature, also have certain refractive power, in eye refraction, occupy an important position.In addition; account for 1/6 cornea of eyeball outer wall and the outer wall tissues that sclera constitutes eyeball together; it also provides special protective effect with scleral tissue to meticulous eyeball content, just because of cornea tissue has special performance, keratopathy also just has the characteristic of oneself.
Tear film and tear; excretory mucus of tarsus conjunctiva and oil secretions constitute; wherein tear is main; eyelid is twinkled and is made tear in corneal epithelium diffusion into the surface film forming; thickness with 4 microns is covered in anterior corneal surface; eyes are when clear-headed; tear constantly generates; constantly twinkle when opening eyes and protect the normal physiological function of cornea, regeneration not after tear is sleeping, catacleisis is tight; the tear film that can prevent anterior corneal surface evaporates; but when a few peoples' ortho sleep was arranged, eyes also were in little state of opening, and cornea also can partly expose; cause exposure keratitis, and the ophthalmology that comes is sought medical advice.
The sensory nerve of cornea is the abundantest on the human body, distribute by ophthalmic branch of trigeminal nerve, constitute plexus nervorum by entering around the cornea, the plexus nervorum of its shallow-layer sends vertical ramuscule and passes bowman's lamina, and be divided into fine fibre and be distributed between the epithelial cell, so corneal sensation is the sharpest, can occur tangible pain, photophobia after its damage, shed tears, blepharospasm, be called for short the cornea irritation.
Concrete manifestation is in the following areas: one, under the local anaesthesia during operated eye, patient is all kinds of operating theater instruments operation before eyes of doctor's use intuitively, in the whole surgery process, testing patient's psychological endurance power, this impression to patient make a profound impression, very inhuman.Two, operation light direct irradiation, make patient that dazzling sense of discomfort be arranged, influence cooperates operation.Three; during the ocular operation local anaesthesia or during the various operation general anesthesia that needs dozens of minutes several hrs and even tens hours of whole body; patient's cornea exposes wholly or in part; lost the normal protection of eye face; tear normally moistening; very easily cause the damage of corneal epithelium; the cornea irritation appears; increase very big misery and uneasy to patient; and be again first sensation of patient behind recovery from anesthesia; patient and family members' thereof is discontented very serious; often show great misunderstanding; serious reduction patient and family members are to hospital; the medical worker; the satisfaction of operation also directly influences patient's postoperative rehabilitation.
Think from ophthalmology specialty angle: corneal epithelial wound brings the serious patient sense of discomfort on the one hand, has increased the danger that corneal infection causes the keratitis corneal ulcer on the other hand.Thereby the very fast healing preventing from scar of corneal epithelium damage meeting but essential layer damage can stay cicatrix and reduce the cornea light transmission and reduce vision generally speaking, if occur together infect cause corneal ulcer, perforation, blind may.
The assistant often must constantly drip in anterior corneal surface to prevent the xerosis epithelialis corneae damage during operated eye, ocular operation usually has only an assistant, disperse assistant's attention to hinder fine cooperation operating doctor operation like this, the assistant also can be taken place cooperate operating doctor with all strength and forget and dripped; The ophthalmologist also can place the cotton sheet of a small pieces of wet sometimes in anterior corneal surface but regular meeting is moved off normal when operation do not reach the good hope of doctor; Finish anesthesia inefficacy back patient in operation under the said circumstances and the cornea irritation can occur.
Usually use after the very careful general anesthesia patient of the Korea S doctor anesthesia onset adhesive plaster be attached to patient go up palpebra inferior make patient's eyelid be in complete closure state, to avoid damaging the accident of cornea; but this method can't be used when operated eye, is difficult to fundamentally solve above-mentioned drawback.
Summary of the invention
This utility model purpose is in order to overcome above-mentioned defective, a kind of eyes corneal protection device to be provided, and this eyes corneal protection device has solved technical problems such as preventing corneal exposure, scratch.
The technical solution of the utility model is:
A kind of eyes corneal protection device comprises circular eyes corneal protection device body, and eyes corneal protection device body inboard is provided with the cornea contact layer of indent.
Described eyes corneal protection device body and cornea contact layer are an integral body, and global sections is shaped as recessed semilune or crescent.Described cornea contact layer is provided with the protective agent layer.
The outer surface of described eyes corneal protection device body and cornea contact layer is a smooth surface.
Thickness H is 2 to 5 millimeters between described eyes corneal protection this external surface of device and cornea contact layer inner surface.Described cornea contact layer interior surface curvature radius M is 7.5 to 8 millimeters.
The diameter D of described eyes corneal protection device body is 7 to 12 millimeters.
Described eyes corneal protection device body and/or cornea contact layer edge are fillet.
Eyes corneal protection device of the present utility model: dark color has the shading performance; material is necessary smooth, nontoxic, nonirritant, good with the good oxygen permeability of histocompatibility; laminar, garden shape such as cornea; size is with corneal diameter or bigger or be slightly less than corneal diameter, the same anterior surface of cornea of radius of curvature; place anterior corneal surface as can contact lens, when placing eyes corneal protection device, can drip with toughness and can protect the medicinal liquid of cornea such as hyaluronic acid sodium, eye usefulness viscoelastic agent, antibiotic gel for eye use or the like.
The beneficial effects of the utility model are:
Eyes corneal protection device of the present utility model can not damage cornea, can avoid cornea directly to expose the cornea insulation blocking; effectively prevent high light, scratch; and can play and block patient's sight line, reduce patient's fear, stablize the effect of patient's emotion.
Use eyes corneal protection device of the present utility model, during general anesthesia operation the anesthesia doctor can worry to revive patient serious furious, ophthalmalgia appears in the back, symptom such as shed tears and suffer complaint, complaint from surgeon and patient and family members thereof; During ophthalmologic operation patient's cornea can avoid by operative doctor in an unguarded moment and grazing damage scratches, by scratches such as dry gauzes, being exposed lacks moistening and dry damage for a long time, the doctor also can drop in the operation whole-heartedly, makes the operation perfection; The ophthalmology patient will no longer in operation process, stand aspects such as psychology, physiology test, decoct, make operation humanity, hommization more.
In addition, this utility model eyes corneal protection device also can be used for treating exposure keratitis, and all diseases that every eyelid can not hide cornea can cause exposure keratitis, and for example: eyeball is excessively outstanding, hypophasis, serious symptom stupor etc.
According to human body true anterior corneal surface physiological structure design, all with cornea coincide, and adopt histocompatibility good material, wear convenient, safety and comfort fully by diameter, radius of curvature for eyes corneal protection device of the present utility model.
Description of drawings
Fig. 1 is one of schematic cross-section of eyes corneal protection device of the present utility model.
Fig. 2 is the front schematic view of eyes corneal protection device of the present utility model.
Fig. 3 be eyes corneal protection device of the present utility model schematic cross-section two.
Fig. 4 be eyes corneal protection device of the present utility model schematic cross-section three.
Among the figure: 1, eyes corneal protection device body, 2, the cornea contact layer, 3, fillet.
The specific embodiment
Below in conjunction with accompanying drawing this utility model is further described:
As Fig. 1, Fig. 2, a kind of eyes corneal protection device comprises circular eyes corneal protection device body 1, and eyes corneal protection device body 1 inboard is provided with the cornea contact layer 2 of indent.
Eyes corneal protection device body 1 is an integral body with cornea contact layer 2, and global sections is shaped as recessed semilune or crescent.
The outer surface of eyes corneal protection device body 1 and cornea contact layer 2 is a smooth surface.
Thickness H is 2 to 5 millimeters between eyes corneal protection device body 1 outer surface and cornea contact layer 2 inner surfacies.Be preferably 3 millimeters.
The diameter D of eyes corneal protection device body 1 is 7 to 12 millimeters.Be preferably 10 millimeters.To meet the cornea size, realize isolating blocking protection comprehensively.
As Fig. 3, eyes corneal protection device body 1 and/or cornea contact layer 2 edges are fillet 3.The cross sectional shape of eyes corneal protection device body 1 is a crescent, and perhaps eyes corneal protection device body 1 integral thickness is roughly the same, i.e. eyes corneal protection device body 1 as shown in Figure 4.Eyes corneal protection device body 1 and/or cornea contact layer 2 edges are fillet 3.Further the protection cornea preserve from, make wear comfortable.
During use; as wearing contact lens eyes corneal protection device of the present utility model is placed on cornea position on patient's eyeball gently; take off after the operation and get final product, eyes corneal protection device of the present utility model can be disposable products, uses repeatedly after also can cleaning, sterilizing.
The material of eyes corneal protection device of the present utility model can be identical for the material of existing recessive glasse, also can adopt metal material.To have shading performance, smooth, nontoxic, nonirritant, to be advisable well with the good oxygen permeability of histocompatibility.
Embodiment recited above is described preferred implementation of the present utility model; be not that design of the present utility model and scope are limited; do not breaking away under this utility model design concept prerequisite; common engineers and technicians make the technical solution of the utility model in this area various modification and improvement; all should fall into protection domain of the present utility model, the technology contents that this utility model is asked for protection all is documented in claims.
Claims (8)
1. an eyes corneal protection device is characterized in that comprising circular eyes corneal protection device body (1), and eyes corneal protection device body (1) inboard is provided with the cornea contact layer (2) of indent.
2. eyes corneal protection device according to claim 1 is characterized in that described eyes corneal protection device body (1) and cornea contact layer (2) are an integral body, and global sections is shaped as recessed semilune or crescent.
3. eyes corneal protection device according to claim 1 is characterized in that described cornea contact layer (2) is provided with the protective agent layer.
4. eyes corneal protection device according to claim 1 is characterized in that the outer surface of described eyes corneal protection device body (1) and cornea contact layer (2) is a smooth surface.
5. eyes corneal protection device according to claim 1 is characterized in that thickness H is 2 to 5 millimeters between described eyes corneal protection device body (1) outer surface and cornea contact layer (2) inner surface.
6. eyes corneal protection device according to claim 1 is characterized in that described cornea contact layer (2) interior surface curvature radius M is 7.5 to 8 millimeters.
7. eyes corneal protection device according to claim 1, the diameter D that it is characterized in that described eyes corneal protection device body (1) are 7 to 12 millimeters.
8. eyes corneal protection device according to claim 1 is characterized in that described eyes corneal protection device body (1) and/or cornea contact layer (2) edge are fillet (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202842124U CN201759734U (en) | 2010-08-06 | 2010-08-06 | Cornea protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202842124U CN201759734U (en) | 2010-08-06 | 2010-08-06 | Cornea protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201759734U true CN201759734U (en) | 2011-03-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202842124U Expired - Fee Related CN201759734U (en) | 2010-08-06 | 2010-08-06 | Cornea protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201759734U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103735350A (en) * | 2013-11-18 | 2014-04-23 | 中国人民解放军第三军医大学第一附属医院 | Disposable cornea protecting glasses for ophthalmologic operations |
| CN105561393A (en) * | 2016-02-25 | 2016-05-11 | 岳邦超 | Amniotic membrane sclera lens support |
| CN106137527A (en) * | 2016-07-15 | 2016-11-23 | 雷玉琳 | Corneal protection device and be applicable to this corneal protection device take instrument |
| CN106580546A (en) * | 2016-12-22 | 2017-04-26 | 刘超 | Eyeball protecting device suitable for eyebrow tattooing and use method of eyeball protecting device |
| CN111904715A (en) * | 2020-09-17 | 2020-11-10 | 上海翰斯泰科技有限公司 | Invisible eyeshade |
-
2010
- 2010-08-06 CN CN2010202842124U patent/CN201759734U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103735350A (en) * | 2013-11-18 | 2014-04-23 | 中国人民解放军第三军医大学第一附属医院 | Disposable cornea protecting glasses for ophthalmologic operations |
| CN105561393A (en) * | 2016-02-25 | 2016-05-11 | 岳邦超 | Amniotic membrane sclera lens support |
| CN106137527A (en) * | 2016-07-15 | 2016-11-23 | 雷玉琳 | Corneal protection device and be applicable to this corneal protection device take instrument |
| CN106580546A (en) * | 2016-12-22 | 2017-04-26 | 刘超 | Eyeball protecting device suitable for eyebrow tattooing and use method of eyeball protecting device |
| CN106580546B (en) * | 2016-12-22 | 2019-05-10 | 新昌县屹然智能科技有限公司 | A kind of the eyeball protective device and its application method of suitable eyebrow tattooing |
| CN111904715A (en) * | 2020-09-17 | 2020-11-10 | 上海翰斯泰科技有限公司 | Invisible eyeshade |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110316 Termination date: 20130806 |