CN201200496Y - Special-shaped artificial eye mount - Google Patents
Special-shaped artificial eye mount Download PDFInfo
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- CN201200496Y CN201200496Y CNU2008200671294U CN200820067129U CN201200496Y CN 201200496 Y CN201200496 Y CN 201200496Y CN U2008200671294 U CNU2008200671294 U CN U2008200671294U CN 200820067129 U CN200820067129 U CN 200820067129U CN 201200496 Y CN201200496 Y CN 201200496Y
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- cone
- artificial eye
- crown body
- equal
- spherical crown
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Abstract
The utility model discloses a heteromorphic artificial eye stand. The artificial eye stand is integrally molded by hydroxylapatite or similar ophthalmological porous netted texture materials and is formed by connecting a spherical crown body in the front and a cone at the back through the common bottom surface of the spherical crown body and the cone. In addition, the vertex of the cone is designed into a smooth arch structure. According to the different parameters of eyepits of patients, the radius r of the sphere of the spherical crown body is equal to 9-12 mm, the height h of the spherical crown body is equal to 0.5-1.0 r, and the cone-apex angle Alpha of the cone is equal to 60-120 DEG; when the height h of the spherical crown body is equal to 0.67 r to 0.8 r and the cone-apex angle Alpha of the cone is equal to 80-100 DEG, the surgery requirements of most of patients can be satisfied. The utility model can improve the mobility of the artificial eye stand, reduce complicating diseases, and prevent sunken eye recrudescence resulted from long-dated orbital adipose atrophy, and is mainly suitable for medical cases of illness with remained self-sclera shell and various degrees of atrophy of the sclera shell.
Description
Technical field
This utility model relates to the artificial eye implant on the clinical ophthalmology, refers to a kind of special-shaped artificial eye holder that adopts hydroxyapatite or the similar porous network structure material monolithic of ophthalmology to make molding particularly.
Background technology
As charges in the eye socket, adopt hydroxyapatite (hydroxyapatite, HA) or the artificial eye holder of similar porous network structure material be widely used in clinical.The sign of estimating an artificial eye holder implant surgery effect is the quality of what and emulation of its complication.Ideal artificial eye holder should be given full play to the filling function after implanting eye socket, and the corrective ophthalmic fossa falls into deformity; Also should be able to coincide, thereby can rotate flexibly with the ocular prosthesis sheet in its place ahead is perfect; The most important thing is after the implant surgery complication such as artificial eye holder exposure, infection to take place.
At present, existing artificial eye holder is the spheroidal structure, mostly adopts the about 500 microns natural hydroxyapatite global formation of micro-pore diameter, ball diameter 18～24mm, and its design considerations is the shape of complete simulating human eyeball.This spheroidal artificial eye holder has maximum volume, falls into respond well to the corrective ophthalmic fossa.Yet along with the progress of artificial eye holder implant surgery, it is hollow-eyed the rectification that its therapeutic evaluation has run far deeper than, but comprises the content of following several respects: one, eye socket cave in corrigent long-term maintenance, the especially prevention of socket of the eye lipoatrophy; Its two, the mobility of artificial eye holder; Its three, the reduction of complication.
Operator often tends to artificial eye holder is implanted the eye socket deep in order to reduce the generation of complication, adopts more and implants behind the eyeball excise in the flesh awl.These modus operandis have no doubt reduced the chance of occurrence that artificial eye holder exposes, and but cause artificial eye holder mobility and eye socket depression rectification effect variation because of the damage of muscle, blood vessel, socket of the eye fat.Verified, artificial eye holder is implanted to the former modus operandi in the position of eyeball can obtains best ocular movemeut degree and effect.Yet in atrophy of eyeball heavier or implemented ophthalmic and held excising operation after the second phase implant in the case of artificial eye holder, even adopted the method for hollow out sclera still can't implant the circular artificial eye holder of routine in the scleral shell.
In fact, as long as select the artificial eye holder of appropriate size, it is not difficult that the corrective ophthalmic fossa falls into deformity.But some are had the patient of residual scleral shell,, spatial accommodation is diminished, be implanted into the spheroidal artificial eye holder at scleral shell like this and will become very difficult because there is atrophy in various degree in scleral shell.If implant circular artificial eye holder reluctantly, can increase tissue tension because of conjunctiva wound overtension, its consequence is exactly the risk that has increased complication such as artificial eye holder exposure, infection.
On the other hand; existing research data shows: the mode that is implanted into artificial eye holder at scleral shell; owing to kept the function of original blood supply of ocular tissue and extraocular muscles to greatest extent, had the advantage that protection socket of the eye fat avoids atrophy, increase artificial eye holder mobility, reduces complication.Therefore, all patients who possesses remaining scleral shell answer first-selected scleral shell to be implanted into the modus operandi of artificial eye holder.And existing spheroidal artificial eye holder has maximum volume in theory, obviously can not satisfy the demand that is implanted at scleral shell.
Summary of the invention
The purpose of this utility model is exactly to remedy the existing narrow deficiency of spheroidal artificial eye holder range of application, provides a kind of eye socket depression that can improve artificial eye holder mobility, minimizing complication, prevent socket of the eye lipoatrophy at a specified future date to cause to recur and can adapt to the special-shaped artificial eye holder of the particularly remaining scleral shell corrective surgery of all kinds of patients demand.
For achieving the above object, the special-shaped artificial eye holder that this utility model is designed adopts the similar porous network structure material monolithic of hydroxyapatite or ophthalmology to make molding.This artificial eye holder is formed by connecting by their total bottom surfaces by the cone at forward ball-crown body and rear portion.And the vertex of a cone partial design of cone is slick globoidal structure.
According to the difference of patient's eye socket parameter, the radius of a ball r=9～12mm of design ball-crown body, the high h=0.5r～1.0r of ball-crown body, cone-apex angle α=60～120 of cone °.When cone-apex angle α=80～100 of the high h=0.67r～0.8r of ball-crown body, cone °, can satisfy most patients' operation demand.
Advantage of the present utility model is: the front interface of designed special-shaped artificial eye holder adopts ball-crown body, has kept and the identical interface of the spherical artificial eye holder of traditional round, thereby has kept the anastomose property good with the ocular prosthesis sheet, has also kept the active synchronicity of ocular prosthesis sheet and artificial eye holder; The rear interface of designed special-shaped artificial eye holder adopts the cone of cambered surface obtuse angle, top structure, has effectively reduced the cumulative volume of artificial eye holder, can adapt to the spatial implantation of narrow and small eye socket; Correspondingly increase simultaneously the surface area of artificial eye holder, helped growing into of new vessels, significant to improving artificial eye holder operation level.Through experiment and clinical research confirmation, the artificial eye holder of this kind structure effectively corrective ophthalmic fossa falls into deformity, increases the artificial eye holder mobility, reduces artificial eye holder implantation complication.
Description of drawings
Fig. 1 is the main TV structure sketch map of special-shaped artificial eye holder of the present utility model;
Fig. 2 is the plan structure sketch map of Fig. 1.
The specific embodiment
Below in conjunction with the drawings and specific embodiments this utility model is described in further detail:
Special-shaped artificial eye holder shown in the figure adopts about 500 microns of micro-pore diameter, and hole intercommunication rate reaches 100% natural hydroxyapatite material integral manufacturing molding.Its concrete structure is connected to form by their total bottom surfaces by the cone 2 at forward ball-crown body 1 and rear portion, and the vertex of a cone of cone 2 partly polishes and is processed into slick globoidal structure 3.Forward ball-crown body 1 can coincide with the ocular prosthesis plate shape that needs are installed, and 2 of the cones at rear portion adapt to the spatial shape of patient's eye socket.Radius of a ball r=9～the 12mm of ball-crown body 1, the high h=0.5r～1.0r of ball-crown body 1, cone-apex angle α=60～120 of cone 2 °.Can make the hydroxyapatite abnormity artificial eye holder of one group of different size according to above-mentioned parameter, select the optimum matching model for surgical doctor according to patient's eye socket pathological changes situation, to obtain best artificial eye holder mobility, effectively the corrective ophthalmic fossa falls into deformity, and reduces the incidence rate of complication.Generally speaking, in the time of the high h=0.67r～0.8r of above-mentioned ball-crown body 1, cone-apex angle α=80～100 of cone 2 °, can satisfy most patients' operation demand.
This utility model is mainly used in to be possessed remainingly from body scleral shell, the scleral shell case of atrophy in various degree, can select the parameter that matches according to the scleral shell atrophy degree.Show through clinical experiment: this special-shaped artificial eye holder can effectively adapt to the situation of patient's eye pathological changes, reduces complication such as artificial eye holder exposures, infection, obtains good surgical effect, and indication is wider, safety better, be worthy of popularization.
Claims (3)
1. special-shaped artificial eye holder, adopt the similar porous network structure material monolithic of hydroxyapatite or ophthalmology to make molding, it is characterized in that: this artificial eye holder is formed by connecting by their total bottom surfaces by the cone (2) at forward ball-crown body (1) and rear portion, and the vertex of a cone of described cone (2) partly is slick globoidal structure (3).
2. special-shaped artificial eye holder according to claim 1 is characterized in that: the radius of a ball r=9～12mm of described ball-crown body (1), the high h=0.5r～1.0r of described ball-crown body (1), cone-apex angle α=60～120 of described cone (2) °.
3. special-shaped artificial eye holder according to claim 1 is characterized in that: the radius of a ball r=9～12mm of described ball-crown body (1), the high h=0.67r～0.8r of described ball-crown body (1), cone-apex angle α=80～100 of described cone (2) °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200671294U CN201200496Y (en) | 2008-05-13 | 2008-05-13 | Special-shaped artificial eye mount |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200671294U CN201200496Y (en) | 2008-05-13 | 2008-05-13 | Special-shaped artificial eye mount |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201200496Y true CN201200496Y (en) | 2009-03-04 |
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ID=40422808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200671294U Expired - Fee Related CN201200496Y (en) | 2008-05-13 | 2008-05-13 | Special-shaped artificial eye mount |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201200496Y (en) |
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2008
- 2008-05-13 CN CNU2008200671294U patent/CN201200496Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090304 Termination date: 20160513 |