CN206007459U - Corneoscleral junction protection ring - Google Patents
Corneoscleral junction protection ring Download PDFInfo
- Publication number
- CN206007459U CN206007459U CN201620532489.1U CN201620532489U CN206007459U CN 206007459 U CN206007459 U CN 206007459U CN 201620532489 U CN201620532489 U CN 201620532489U CN 206007459 U CN206007459 U CN 206007459U
- Authority
- CN
- China
- Prior art keywords
- protection ring
- ring body
- corneoscleral junction
- curvature
- corneal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The utility model proposes a kind of corneoscleral junction protection ring，Including the protection ring body with centre bore，The material of the protection ring body is transparent material，The size shape of the protection ring body is adapted with the size shape of corneoscleral junction，The protection ring body is outwards disposed with first surface area along centre bore、Transition region and the second curved regions，Curvature of curved surface of the curvature of curved surface in the first surface area more than second curved regions，Radian and fissura palpebrae shape design of this utility model according to corneoscleral junction region，Can be in corneal collagen crosslinking treatment，Can be protected with the region beyond corneal central authorities，Corneal collagen is avoided to be crosslinked the damage of therapeutic process middle-ultraviolet lamp corneal limbal stem cell，Damage to periphery corneal stroma and endotheliocyte it also avoid simultaneously，And first surface area、Transition region and the second curved regions can be good laminating Central corneal beyond region，Corneoscleral junction protection ring can be moved with eyeball，Further increase protective effect.
Description
Technical field
This utility model is related to medical instruments field, is specifically related to one kind and applies in corneal collagen crosslinking therapeutic process
Corneoscleral junction protection ring.
Background technology
The cornea of normal eye can be divided into five layers from histology, and face is respectively from outside to inside：Corneal epithelium, front bullet
Power layer, hypothalluses, descemet's membrane, endodermiss.Wherein, shared by corneal stroma ratio is maximum, accounts for the 90% of whole thickness.
Corneal stroma is made up of 200 layers or so of collagenous fiber bundle thin plate proper alignment, and these collagenous fiber bundles have toughness big, anti-
The characteristics of tension force is strong, is to maintain cornea toughness, the deciding factor of tension force.The concept of keratoconuses is：One kind is with keratectasia
It is characterized, Central corneal region is forwardly convex, and persistence is thinning, forms cone and change, and produce highly irregular astigmatism, high
Degree myopia, vision degradation, with the keratopathy that mirror effectively cannot be corrected.The reason for constitutional keratoconuses are fallen ill：With angle
The quantity progressive of film collagen tissue is reduced, or collagen fiber structure change, causes collagen tissue spatial abnormal feature, arrangement relevant.
It is well known that laser surgery is the hypothalluses thickness of part cornea to be melted by excimer laser, reduce cornea
Radian, reaches the purpose of correction of refractive errors.Operation itself can cause the minimizing of corneal thickness irreversibility, high myopia, art
The partially thin patient of anterior angle film thickness, once postoperative residual corneal thickness is too thin, just has generation " secondary keratoconus "
Probability.After keratoconuses are made a definite diagnosis, cornea can be controlled by wearing high oxygen flow contact lenss (RGP) of hard in early days
Continuous expansion, it is also possible to by intrastromal corneal ring implant surgery, controls advancing of disease.The late period for having arrived pathological changes only has cornea to move
Plant this road of performing the operation to walk.Current domestic corneal donor is extremely rare, and operation price is high, a lot of keratoconuses
Patient can only be bitter waited in the fuzzy world.
Nowadays, there are a kind of new method corneal collagen crosslinking (the Corneal Cross of control keratoconuses development again
Linking, CCL) treatment, the undoubtedly Gospel of keratoconus.Corneal collagen crosslinking (Corneal Cross Linking,
CCL) treat：Using the ultraviolet of 370 nano wave lengths, riboflavin (a kind of photosensitizing agents) is activated so as to change into active chalcogen,
Active chalcogen is induced again, between the amino of corneal collagen fiber, chemical crosslink reaction occurs, make corneal collagen fibre diameter increase thick,
The multi-biological effect such as resistance of the corneal stroma to multiple degraded enzyme effects is improved, so that the mechanical strength of corneal stroma
Increase.The initial stage state of an illness of keratoconus, can be effectively controlled by CCL treatments, it is to avoid that continues the state of an illness enters one
Step deteriorates.
The process that corneal collagen crosslinking (Corneal Cross Linking, CCL) is treated includes：1st, cleaning eye before treating
Portion, partly sterilised；2nd, eye point topical anesthetic cream 30 minutes；3rd, riboflavin acts on anterior corneal surface 25 minutes, then uses ripple again
Long 370 nanometers ultraviolet light, irradiation cornea local about 30 minutes.
But the corneoscleral junction outside ultraviolet light irradiation area is not protected over the course for the treatment of, prolonged purple
Outside line irradiation and corneoscleral junction exposed, easily cause the slight damage at corneoscleral junction or cause the discomfort of patient, and
In corneal collagen crosslinking therapeutic process, it is possible to which patient's eyeball can be moved, it is therefore desirable to which one kind can be in corneal collagen
The protection equipment that corneoscleral junction is protected in crosslinking therapeutic process and can be moved with eyeball.
In view of this, special proposition this utility model.
Utility model content
This utility model is intended at least to solve to a certain extent one of technical problem in correlation technique.
For this purpose, this utility model provides a kind of corneoscleral junction protection ring, concrete technical scheme is as follows：
A kind of corneoscleral junction protection ring, including the protection ring body with centre bore, the material of the protection ring body is
Transparent material, the size shape of protection ring body are adapted with the size shape of corneoscleral junction, the protection ring body edge
Centre bore is outwards disposed with first surface area, transition region and the second curved regions, and the curvature of curved surface in the first surface area is big
In the curvature of curved surface of second curved regions, the curvature of curved surface of the transition region is in first surface area curvature and the second curved surface
Between the curvature of curved surface in area.
According to the corneoscleral junction protection ring that this utility model is provided, set according to the radian and fissura palpebrae shape in corneoscleral junction region
Meter, can be protected with the region beyond corneal central authorities, it is to avoid corneal collagen is crosslinked in corneal collagen crosslinking treatment
The damage of therapeutic process middle-ultraviolet lamp corneal limbal stem cell, while it also avoid the damage to periphery corneal stroma and endotheliocyte
Region beyond wound, and the laminating Central corneal that first surface area, transition region and the second curved regions can be good, corneoscleral junction
Protection ring can be moved with eyeball, further increase protective effect.
In addition, the corneoscleral junction protection ring that this utility model is provided also has following additional technical feature：
According to an example of the present utility model, the center-hole diameter of the protection ring body is 8mm.
According to an example of the present utility model, the protection ring body stretches out 8～11mm along the center of circle of centre bore
Scope is the first surface area, and the protection ring body stretches out 11～12mm scopes for the transition along the centre bore center of circle
Area, the protection ring body stretch out 12mm range above for second curved regions along the centre bore center of circle.
According to an example of the present utility model, the curvature of curved surface in the first surface area is 42D, second curved regions
Curvature of curved surface be 30D, the curvature of curved surface of the transition region is 30D～42D.
According to an example of the present utility model, the thickness of the protection ring body is 0.2mm.
According to an example of the present utility model, the first surface of the protection ring body radially offers multiple
One drainage trough, the first drainage trough interval are evenly arranged, and the groove depth of first drainage trough is 0.01mm～0.02mm.
According to an example of the present utility model, the second surface of the protection ring body radially offers multiple
Two drainage troughs, the second drainage trough interval are evenly arranged, and the groove depth of second drainage trough is 0.01mm～0.02mm.
According to an example of the present utility model, first drainage trough, the arrangement interval of second drainage trough are
0.3mm.
According to an example of the present utility model, the material of the protection ring body is PMMA materials.
Additional aspect of the present utility model and advantage will be set forth in part in the description, partly will be from explained below
In become obvious, or by of the present utility model practice recognize.
Description of the drawings
Top views of the Fig. 1 for the corneoscleral junction protection ring of this utility model embodiment；
Front views of the Fig. 2 for the corneoscleral junction protection ring of this utility model embodiment；
Left views of the Fig. 3 for the corneoscleral junction protection ring of this utility model embodiment.
Specific embodiment
Embodiment of the present utility model is described below in detail, the example of the embodiment is shown in the drawings, wherein ad initio
Same or similar element is represented to same or similar label eventually or the element with same or like function.Below by ginseng
The embodiment for examining Description of Drawings is exemplary, it is intended to for explaining this utility model, and it is not intended that to this utility model
Restriction.
Below with reference to the accompanying drawings describing in detail according to corneoscleral junction protection ring of the present utility model.
In conjunction with a kind of corneoscleral junction protection ring shown in accompanying drawing 1-3, is present embodiments provided, including the guarantor with centre bore 2
Retaining ring body 1, a diameter of 8mm of centre bore, because in corneal collagen crosslinking treatment, remove the cornea of central 8mm or so first
Epithelium, point riboflavin solution contaminate cornea, reuse ultraviolet irradiation central cornea, and target illumination region is Central corneal 8mm
Scope, needs the corneoscleral junction outside to irradiation area to protect.In the present embodiment, the material of protection ring body 1 is transparent
Material, specially PMMA materials, i.e. polymethyl methacrylate, PMMA materials have good chemical stability and weatherability.
The size shape of protection ring body is adapted with the size shape of corneoscleral junction, and described here being adapted is referred in protection ring sheet
Body is may be mounted on eyeball, and can play a part of covering protection to corneoscleral junction.
As shown in figure 1, protection ring body 1 is outwards disposed with first surface area 3, transition region 4 and second along centre bore 2
Curved regions 5, the curvature of curved surface of the curvature of curved surface in first surface area 3 more than the second curved regions 5, the curvature of curved surface of transition region 4 is the
Between one curved regions, 3 rates of song and the curvature of curved surface of the second curved regions 5, i.e. protection ring body 1 includes different curvature from the inside to the outside
Region, curvature reduce successively.
First surface area 3, transition region 4 and the second curved regions 5 can be good laminating corneoscleral junction, not only to corneoscleral junction
The effect of being effectively protected is played, and when eyeball is moved, protection ring body 1 can be moved with eyeball.
More specifically, in the present embodiment, protection ring body stretches out 8～11mm scopes for the along the center of circle of centre bore
One curved regions, protection ring body stretch out 11～12mm scopes for transition region along the centre bore center of circle, and protection ring body is along center
The hole center of circle stretches out 12mm range above for the second curved regions.Preferably, in the present embodiment, the curved surface curved in first surface area
Rate is 42D, and the curvature of curved surface of the second curved regions is 30D, and the curvature of curved surface of transition region is 30D～42D.Using setting for above parameter
Meter more conforms to the curvature of eyeball corneoscleral junction, and during patient's Rotation of eyeball, corneoscleral junction protection ring is even closer
With eyeball synchronous axial system.
Used as the further preferred embodiment of the present embodiment, the thickness for protecting ring body 1 is 0.2mm, can not only protect
Protected effect of the card to corneoscleral junction, and the thickness of 0.2mm will not also cause the sense of discomfort of patient.
In addition, applicant is had found in experiment and operation process, due to needing a riboflavin solution to contaminate in therapeutic process
Cornea, and patient's lachrymal gland in operation process can also secrete tear, and liquid can cause the knot of corneoscleral junction protection ring and eyeball
Decline with joint efforts, therefore, applicant makes further improvement to corneoscleral junction protection ring, in the first surface of protection ring body 1
Multiple first drainage trough (not shown) are radially offered, and the first drainage trough interval is evenly arranged, the groove depth of the first drainage trough
For 0.01mm～0.02mm.It is furthermore preferred that the second surface of protection ring body radially offers multiple second drainage troughs (not
Illustrate), the second drainage trough interval is evenly arranged, and the groove depth of the second drainage trough is 0.01mm～0.02mm.Favourable, the first drain
Groove, the arrangement interval of the second drainage trough are 0.3mm.First drainage trough, the arrangement of the second drainage trough can cause liquid from drain
Groove flows out corneoscleral junction protection ring, it is to avoid problem above occur, and the first drainage trough can cause corneoscleral junction protection ring with
Eyeball is preferably combined, and plays certain card and effect.It should be noted that first surface here refers to that corneoscleral junction is protected
The surface that ring is contacted with eyeball, outer surface of the second surface for corneoscleral junction protection ring, the i.e. surface with air contact.
In sum, according to this utility model provide corneoscleral junction protection ring, according to corneoscleral junction region radian and
Fissura palpebrae shape is designed, and can be protected with the region beyond corneal central authorities, it is to avoid angle in corneal collagen crosslinking treatment
The damage of film collagen cross-linking therapeutic process middle-ultraviolet lamp corneal limbal stem cell, while it also avoid to periphery corneal stroma and interior
Area beyond the damage of chrotoplast, and the laminating Central corneal that first surface area, transition region and the second curved regions can be good
Domain, corneoscleral junction protection ring can be moved with eyeball, further increase protective effect.
It should be noted that in the description of the present embodiment, term " first ", " second " are only used for describing purpose, and not
It is understood that as instruction or implies relative importance or the implicit quantity for indicating indicated technical characteristic.Thus, define " the
One ", the feature of " second " can be expressed or implicitly include one or more this feature.In description of the present utility model
In, " multiple " are meant that two or more, unless otherwise expressly limited specifically.
In this utility model, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection ", " Gu
Fixed " etc. term should be interpreted broadly, for example, it may be fixedly connected, or be detachably connected or integral；Can be
It is mechanically connected, or electrically connects；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, can be two
The connection of element internal or the interaction relationship of two elements.For the ordinary skill in the art, can basis
Concrete condition understands concrete meaning of the above-mentioned term in this utility model.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy described with reference to the embodiment or example
Point is contained at least one embodiment of the present utility model or example.In this manual, the schematic table to above-mentioned term
State.And, the specific features of description, structure, material or feature can be with
Combined in any one or more embodiments or example in an appropriate manner.Additionally, in the case of not conflicting, this area
Technical staff the feature of the different embodiments or example described in this specification and different embodiment or example can be entered
Row is combined and is combined.
Although embodiment of the present utility model has been shown and described above, it is to be understood that above-described embodiment is
Exemplary, it is impossible to it is interpreted as that one of ordinary skill in the art is in scope of the present utility model to restriction of the present utility model
Interior above-described embodiment can be changed, be changed, being replaced and modification.
Claims (9)
1. a kind of corneoscleral junction protection ring, it is characterised in that include the protection ring body with centre bore, the protection ring body
Material be transparent material, the size shape of protection ring body is adapted with the size shape of corneoscleral junction, the protection
Ring body is outwards disposed with first surface area, transition region and the second curved regions, the song in the first surface area along centre bore
Curvature of curved surface of the face curvature more than second curved regions, the curvature of curved surface of the transition region in first surface area curvature and
Between the curvature of curved surface of the second curved regions.
2. corneoscleral junction protection ring according to claim 1, it is characterised in that the center-hole diameter of the protection ring body
For 8mm.
3. corneoscleral junction protection ring according to claim 2, it is characterised in that circle of the protection ring body along centre bore
The heart stretches out 8～11mm scopes for the first surface area, and the protection ring body stretches out 11 along the centre bore center of circle～
12mm scopes are the transition region, and the protection ring body stretches out 12mm range above for described second along the centre bore center of circle
Curved regions.
4. corneoscleral junction protection ring according to claim 3, it is characterised in that the curvature of curved surface in the first surface area is
42D, the curvature of curved surface of second curved regions is 30D, and the curvature of curved surface of the transition region is 30D～42D.
5. corneoscleral junction protection ring according to claim 1, it is characterised in that the thickness of the protection ring body is
0.2mm.
6. corneoscleral junction protection ring according to claim 5, it is characterised in that the first surface edge of the protection ring body
Which radially offers multiple first drainage troughs, and the first drainage trough interval is evenly arranged, and the groove depth of first drainage trough is
0.01mm～0.02mm.
7. corneoscleral junction protection ring according to claim 6, it is characterised in that the second surface edge of the protection ring body
Which radially offers multiple second drainage troughs, and the second drainage trough interval is evenly arranged, and the groove depth of second drainage trough is
0.01mm～0.02mm.
8. corneoscleral junction protection ring according to claim 7, it is characterised in that first drainage trough, described second are drawn
The arrangement interval of chute is 0.3mm.
9. the corneoscleral junction protection ring according to any one of claim 1-8, it is characterised in that the material of the protection ring body
Matter is PMMA materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620532489.1U CN206007459U (en) | 2016-06-02 | 2016-06-02 | Corneoscleral junction protection ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620532489.1U CN206007459U (en) | 2016-06-02 | 2016-06-02 | Corneoscleral junction protection ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206007459U true CN206007459U (en) | 2017-03-15 |
Family
ID=58241676
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620532489.1U Expired - Fee Related CN206007459U (en) | 2016-06-02 | 2016-06-02 | Corneoscleral junction protection ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206007459U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117258157A (en) * | 2023-11-14 | 2023-12-22 | 超目科技(北京)有限公司 | Cornea crosslinking auxiliary device and cornea crosslinking system |
-
2016
- 2016-06-02 CN CN201620532489.1U patent/CN206007459U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117258157A (en) * | 2023-11-14 | 2023-12-22 | 超目科技(北京)有限公司 | Cornea crosslinking auxiliary device and cornea crosslinking system |
| CN117258157B (en) * | 2023-11-14 | 2024-02-09 | 超目科技(北京)有限公司 | Cornea crosslinking auxiliary device and cornea crosslinking system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TWI828696B (en) | Ophthalmic lens comprising lenslets for preventing and/or slowing myopia progression | |
| AU666873B2 (en) | Reprofiling of synthetic lenticules | |
| US7655002B2 (en) | Lenticular refractive surgery of presbyopia, other refractive errors, and cataract retardation | |
| Kymionis et al. | Photorefractive keratectomy followed by same-day corneal collagen crosslinking after intrastromal corneal ring segment implantation for pellucid marginal degeneration | |
| US6059775A (en) | Multifocal corneal sculpturing | |
| Bower et al. | Overview of refractive surgery | |
| US20140155800A1 (en) | Eye coverings for corneal healing and methods of use | |
| JPH0344778B2 (en) | ||
| CN1972643A (en) | Corneal onlays and wavefront aberration correction to enhance vision | |
| US20020049450A1 (en) | Correction of presbyopia, other refractive errors and cataract retardation | |
| EP1989585A2 (en) | Small diameter inlays | |
| Mortensen et al. | Excimer laser photorefractive keratectomy for treatment of keratoconus | |
| Shimizu et al. | Photorefractive keratectomy for myopia: one-year follow-up in 97 eyes | |
| Fenner et al. | Inlays and the cornea | |
| CN206007459U (en) | Corneoscleral junction protection ring | |
| CN113189789B (en) | Contact lenses with improved visual performance and minimized halation using pupil apodization | |
| Pallikaris et al. | Photorefractive keratectomy with a small spot laser and tracker | |
| McDonnell | Refractive surgery | |
| JP2000206468A (en) | Contact lens with thickness difference compensated of shrinkage difference and its production | |
| Vossmerbaeumer et al. | Removal of an intracorneal hydrogel implant for hyperopia after LASIK | |
| CN205659049U (en) | Lens in cornea | |
| US9956230B2 (en) | Method for visual enhancement and post procedure treatment protocol | |
| Kaufman et al. | Treatment of epibulbar limbal dermoids | |
| WO1991016865A1 (en) | Adjustable reprofiling of synthetic lenticules | |
| US10512653B2 (en) | Method for visual enhancement and post procedure treatment protocol |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180427 Address after: 250200 Longquan Road, Zhangqiu, Ji'nan, Shandong, 5601 Patentee after: Limited by Share Ltd Ji'nan Mingshui Eye Hospital Address before: 250200 Shandong Ji'nan City, Ji'nan City, Zhangqiu Ming Shui Industrial Park Ji'nan Eye Water Eye Hospital Patentee before: Lei Yulin |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170315 Termination date: 20210602 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |