CN2647270Y - Bag type artificial vitreous body - Google Patents
Bag type artificial vitreous body Download PDFInfo
- Publication number
- CN2647270Y CN2647270Y CN 03247199 CN03247199U CN2647270Y CN 2647270 Y CN2647270 Y CN 2647270Y CN 03247199 CN03247199 CN 03247199 CN 03247199 U CN03247199 U CN 03247199U CN 2647270 Y CN2647270 Y CN 2647270Y
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- China
- Prior art keywords
- bag
- drainage tube
- vitreous
- artificial vitreous
- firing trigger
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Abstract
The utility model relates to an artificial film bag vitreous body with large molecule, including a bag 1, a conduction tube 2 and a vault handle 3; wherein, the bag matches the vitreous body in terms of shape and size; the upper side of the bag connects to the conduction tube; the upper part of the conduction tube is provided with a conduction valve 21; the bag and the conduction tube are arranged inside the vault handle whose head clamps the bag. The utility model totally changes the filling approach of vitreous body surgical operation in prior art, which is simple, economical, convenient and efficient, thereby alleviating post-operation complication, reducing coincidence of operation, promoting the vitreous body operation to hospitals in city level, saving eyesight of even more people and enjoying a very critical social and economical value.
Description
One, technical field
This utility model relates to the macromolecule membrane bag type paste artificial vitreous of a kind of biomaterial for medical purpose, particularly a kind of adjustable intraocular pressure.
Two, background technology
Modern operation on vitreous is the Ophthalimic microsurgery that the seventies rises, and the countless blind eyes that are about to are saved in performance effect greatly in the clinical ophthalmology practice.At the ophthalmology center of developed country, operation on vitreous is only second to the cataract extraction intraocular lens implants, becomes deputy ophthalmologic operation.
Normal vitreous body is a kind of special gel tissue.Behind operation on vitreous, original vitreous body is cut, and vitreous body can not be regenerated again, need come the filling glass body cavity with vitreous substitute, supports or the filling retina, to prevent and treat detachment of retina.Since 1891, ophthalmic industry has been attempted multiple vitreous substitute, but effect is all not satisfactory.How making all identical with the primary vitreous artificial vitreous of a 26S Proteasome Structure and Function is one of key factor that guarantees the operation on vitreous success.
Numerous to vitreous substitute research both at home and abroad, however these substitutes are all not ideal enough, and eye inner tissue is brought various influences.Vitreous substitute mainly contains noble gas, silicone oil, perfluorocarbon liquid at present, and the high molecular weight hydrophilic polyalcohol hydrogel of domestic and international recently research focus etc.Cataract takes place in noble gas easily, loses wad act about 2 weeks, can not produce persistent roof pressure effect to retina; Silicone oil can cause cataract and glaucoma, and this meeting emulsifying in the regular hour, must take out after the emulsifying, but detachment of retina easily takes place after taking out in silicone oil once more, the operation of repeated multiple times has not only increased the weight of patient's financial burden, and grievous injury patient's eyes; Because silicone oil is littler than normal glass body refractive index, the eye refraction degree is changed to the hypermetropia direction, thereby had a strong impact on patient's vision; In addition, silicone oil owing to the density reason to retina below ceasma roof pressure weak effect; Perfluorocarbon liquid is toxic to retina, can not be retained in vitreous chamber for a long time, uses in Rhizoma Atractylodis Macrocephalae; Hydrogel is that a class has hydrophilic group, can be expanded but be not dissolved in the polymer of water by water-soluble, and its swellable to one balance volume in water still keeps its form.The hydrophilic of hydrogel derives from the hydrophilic radical in the structure, and insoluble and swelling morphological stability derives from the three-dimensional net structure of polymer molecule.But these hydrogels are still at the experimental stage, do not enter clinical practice as yet, and they lack at a specified future date the observation to ophthalmic toxicity, and price is very expensive, also is difficult to burden even apply to clinical patients.Therefore, seeking more suitable, more economical vitreous substitute is the task of top priority in this century of ophthalmologists, also is developing direction from now on.
Three, summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art part, and providing a kind of can implement effective filling, retina is realized excellent support or filling, has no side effect, can not cause complication such as cataract and glaucoma, can be reduced recurrence after operation rate and the lower artificial vitreous of material cost vitreous chamber.
The purpose of this utility model is achieved in that a kind of bag type paste artificial vitreous, it is characterized in that it comprises capsule bag 1, drainage tube 2 and firing trigger 3, the shape and the volume of capsule bag and people's camera vitrea bulbi adapt, capsule bag top connects drainage tube, drainage tube is provided with drain valve 21, capsule bag and drainage tube are hidden in the firing trigger, the head clamping capsule bag of firing trigger.
This utility model recovers Vitrea support function unlike generally vitreous substitute directly being injected vitreous chamber without vitreous substitute, reaches this purpose but use a water-filled capsule bag, has avoided ophthalmic toxicity; Use ethylene and vinyl acetate copolymer, make the high molecular polymer thin film; Develop bag type paste vitreous body system first, its advantage is a lot of: a. drain valve can be regulated intraocular pressure, the optic nerve lesion of avoiding the recurrent high intraocular pressure of postoperative to cause; B. persistent roof pressure effect can all be arranged to the ceasma at any position of retina, reduce the recurrence chance of detachment of retina, improve the surgical healing rate; C. be easy to whole taking-ups,, can take out easily, avoided present vitreous substitute because of taking out the residual ophthalmic of difficulty if there is serious ophthalmic reaction patient not tolerate; D. Postoperative visual acuity is better, and whole artificial vitreous's optical parametric more approaches the normal glass body, thereby can obtain vision preferably; E. economical, cost can be controlled within 500 yuan, and silicone oil is on 2000 yuan.This utility model has fundamentally changed the filling mode behind the present operation on vitreous, simply, economical, convenient, effective, alleviated postoperative complication, reduced the recurrence after operation rate, thereby operation on vitreous further can be generalized to city one-level hospital, save more patients' vision, have very important society and economic worth.
Four, description of drawings
Fig. 1 is capsule bag of the present utility model and drainage tube structure chart.
Fig. 2 is a firing trigger structure chart of the present utility model.
The figure number explanation:
1---capsule bag 2---drainage tube
21---drain valve 3---firing trigger
31---shell 32---spring core
33---switch
Five, the specific embodiment
This research is according to this imagination, designs an adjustable high intraocular pressure molecular film bag type paste artificial vitreous system and reaches this purpose.System comprises: macromolecule membrane capsule bag, drain and firing trigger.Elder generation's synthetic high polymer thin film is used ethylene and vinyl acetate copolymer as high molecular film material.According to the shape and the volume of people's camera vitrea bulbi, make the capsule bag again with macromolecule membrane.Capsule bag top connects drain, and it is a kind of long drainage tube with uniaxial pressure sensitive valve, can inject water by drain valve, is fixed under the conjunctiva, and when intraocular pressure exceeds just often, the capsule water-in-bag is outflow automatically; Firing trigger is made up of shell, spring core and switch for the auxiliary device of implanting thin film capsule bag and drain in the operation.Shell is cylindric, diameter 8mm, and the bottom dwindles gradually, and diameter 3mm can enter vitreous chamber by otch.Switch is located at the top, pressing down the rear spring core in the operation stretches out, clamping drainage tube tightly, loosening switch, the head retraction makes capsule bag and drain be hidden in shank, under former operative incision, compress switch during implantation, in vitreous chamber, eject capsule bag and part drainage tube, but the head outer section of clamping drainage tube tightly still is fixed under the conjunctiva.The capsule bag can be folded into very small size, is convenient to be implanted to vitreous chamber.
Capsule bag and drain adopt integral type design, one-shot forming on the make.According to the shape and the volume of people's camera vitrea bulbi, make artificial vitreous's (6-8 model is applied to ametropia and pediatric patient) of different model, can be folded into very small size, be convenient to operation.The anteroposterior diameter of capsule bag is 16mm, and level directly is 23mm, and vertical diameter is 23mm, it is the concave surface of 6mm that front surface has a radius of curvature, and capsule bag top connects the silica gel drain, and drainage tube is about 20mm, internal diameter 0.3mm, external diameter 0.64mm, the far-end of this pipe have level and vertical crack, play a part the responsive flap valve of simple uniaxial pressure, can inject water by drain valve, postoperative is fixed under the conjunctiva, and when intraocular pressure exceeds just often, the capsule water-in-bag can flow out automatically.Firing trigger is made up of shell, spring core and switch for the auxiliary device of implanting thin film capsule bag and drain in the operation.Shell is cylindric (long 9cm), diameter 8mm, and the bottom dwindles (long 1.5cm) gradually, and diameter 3mm can enter vitreous chamber by otch.Switch is located at the top, pressing down the rear spring core in the operation stretches out, clamping drainage tube tightly, loosening switch, the head retraction makes capsule bag and drain be hidden in shank, under former operative incision, compress switch during implantation, in vitreous chamber, eject capsule bag and part drainage tube, but the head outer section of clamping drainage tube tightly still is fixed under the conjunctiva.The capsule bag can be folded into very small size, is convenient to be implanted to vitreous chamber.
Claims (7)
1, a kind of bag type paste artificial vitreous, it is characterized in that it comprises capsule bag (1), drainage tube (2) and firing trigger (3), the shape and the volume of capsule bag and people's camera vitrea bulbi adapt, capsule bag top connects drainage tube, drainage tube is provided with drain valve (21), capsule bag and drainage tube are hidden in the firing trigger, the head clamping capsule bag of firing trigger.
2,, it is characterized in that drain valve is arranged on the drainage tube end away from the capsule bag according to the described bag type paste artificial vitreous of claim 1.
3, according to the described bag type paste artificial vitreous of claim 1, it is characterized in that firing trigger is made up of shell (31), spring core (32) and switch (33), shell is cylindric, and the bottom dwindles gradually, and switch is located at the firing trigger top.
4, according to the described bag type paste artificial vitreous of claim 1, it is characterized in that the far-end of drainage tube has level and vertical crack, form drain valve (21) with the responsive flap valve effect of uniaxial pressure.
5, according to the described bag type paste artificial vitreous of claim 1, the anteroposterior diameter that it is characterized in that the capsule bag is 16mm, and level directly is 23mm, and vertical diameter is 23mm, and it is the concave surface of 6mm that front surface has a radius of curvature.
6, according to the described bag type paste artificial vitreous of claim 1, it is characterized in that drainage tube is about 20mm, internal diameter 0.3mm, external diameter 0.64mm.
7, according to the described bag type paste artificial vitreous of claim 3, it is characterized in that the long 9cm of firing trigger cylindrical shell, diameter is 8mm, following minister 1.5cm, and be contracted to diameter 3mm gradually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03247199 CN2647270Y (en) | 2003-06-13 | 2003-06-13 | Bag type artificial vitreous body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03247199 CN2647270Y (en) | 2003-06-13 | 2003-06-13 | Bag type artificial vitreous body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2647270Y true CN2647270Y (en) | 2004-10-13 |
Family
ID=34327141
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03247199 Expired - Lifetime CN2647270Y (en) | 2003-06-13 | 2003-06-13 | Bag type artificial vitreous body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2647270Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102283741A (en) * | 2011-07-14 | 2011-12-21 | 广州卫视博生物科技有限公司 | Folding artificial vitreous body injector |
| US8419994B2 (en) | 2008-10-15 | 2013-04-16 | Guangzhou Visbor Biotechnology Ltd. | Manufacturing method of foldable artificial vitreous body and mould thereof |
| CN110859702A (en) * | 2019-11-21 | 2020-03-06 | 广州卫视博生物科技有限公司 | Folding top pressing balloon structure |
-
2003
- 2003-06-13 CN CN 03247199 patent/CN2647270Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8419994B2 (en) | 2008-10-15 | 2013-04-16 | Guangzhou Visbor Biotechnology Ltd. | Manufacturing method of foldable artificial vitreous body and mould thereof |
| US8573961B2 (en) | 2008-10-15 | 2013-11-05 | Guangzhou Vesber Biotechnology Co., Ltd | Mold for manufacturing a foldable artificial vitreous body |
| CN102283741A (en) * | 2011-07-14 | 2011-12-21 | 广州卫视博生物科技有限公司 | Folding artificial vitreous body injector |
| CN110859702A (en) * | 2019-11-21 | 2020-03-06 | 广州卫视博生物科技有限公司 | Folding top pressing balloon structure |
| WO2021098155A1 (en) * | 2019-11-21 | 2021-05-27 | 广州卫视博生物科技有限公司 | Folding pressing-type balloon structure |
| CN110859702B (en) * | 2019-11-21 | 2022-03-01 | 广州卫视博生物科技有限公司 | Folding top pressing balloon structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20050727 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |