CN103284831A - Foldable glaucoma aqueous humor drainage device - Google Patents
Foldable glaucoma aqueous humor drainage device Download PDFInfo
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- CN103284831A CN103284831A CN2012100500408A CN201210050040A CN103284831A CN 103284831 A CN103284831 A CN 103284831A CN 2012100500408 A CN2012100500408 A CN 2012100500408A CN 201210050040 A CN201210050040 A CN 201210050040A CN 103284831 A CN103284831 A CN 103284831A
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- drainage tube
- foldable
- aqueous humor
- drainage
- glaucoma
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F9/00—Methods or devices for treatment of the eyes; Devices for putting-in contact lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
- A61F9/007—Methods or devices for eye surgery
- A61F9/00781—Apparatus for modifying intraocular pressure, e.g. for glaucoma treatment
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- Ophthalmology & Optometry (AREA)
- Heart & Thoracic Surgery (AREA)
- Surgery (AREA)
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- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
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- General Health & Medical Sciences (AREA)
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- Prostheses (AREA)
- External Artificial Organs (AREA)
Abstract
The invention provides a foldable glaucoma aqueous humor drainage device. The foldable glaucoma aqueous humor drainage device comprises a drainage pipe (1), wherein two foldable arc-shaped protective sheets (3) made of a shape memory material are fixedly arranged on the outer side wall of an end port (2) of the drainage pipe (1); an unclosed cavity is formed between the two arc-shaped protective sheets (3); and the end port of the drainage pipe is positioned inside the cavity body of the unclosed cavity. The foldable glaucoma aqueous humor drainage device has the advantages as follows: through the design of the two layers of the protective sheets outside an outer pipe orifice, the blockage probability of the outer orifice of the drainage pipe can be reduced; through the foldable design of the protective sheets, tissue damage can be reduced; and the foldable glaucoma aqueous humor drainage device can significantly improve the success rate of a glaucoma drainage valve implantation and reduce incidence of postoperative complications.
Description
Technical field
The present invention relates to the outer device of implanting of a kind of eye, be specially a kind of collapsible glaucoma aqueous humor drainage device.
Background technology
Glaucoma is the irreversibility blinding oculopathy of ranking the whole world second, also is one of main blinding oculopathy of China.Glaucoma mainly is because the ophthalmic aqueous humor is discharged intraocular pressure is raise, and finally causes optic atrophy and lose one's sight.For intractable glaucoma, the most frequently used art formula is glaucoma drain valve implantation both at home and abroad at present.Existing glaucoma drain valve mainly is made up of with a drain dish of fixedlying connected with silica gel tube one end (collar extension) a pliable and tough silica gel tube (being drainage tube).During implantation, earlier the drain dish is planted in eye outside under the conjunctiva, the other end with silica gel tube inserts in ophthalmic again, makes the ophthalmic aqueous humor flow out the back by the outer tissue absorption of eye by silica gel tube from the collar extension end, reaches reduction intraocular pressure purpose.Use existing drain valve early stage control intraocular pressure after operation more satisfactory, but generally at 2-3 after week, collar extension usually can be stopped up by ever-increasing scar tissue on every side, thereby it is not smooth that aqueous humor is discharged, and intraocular pressure raises gradually, causes the drain failure at last.
Summary of the invention
The purpose of this invention is to provide a kind of aqueous humor drainage device for glaucoma, this device can be avoided the obstruction of scar tissue in the collar extension design, thereby improves success rate of operation.
Aqueous humor drainage device for glaucoma provided by the present invention comprises a drainage tube, is fixed with two folding arcuation screening glass of being made by shape-memory material (3) in the lateral wall of the port (2) of described drainage tube (1); Form a no closed cavities between described two arcuation screening glass (3), a described port (2) of drainage tube (1) is positioned at the cavity of this no closed cavities.This design makes described two arcuation screening glass (3) that the outer mouth of pipe of drainage tube (1) is clipped in wherein, and can avoiding on every side, ever-increasing scar tissue stops up the mouth of pipe; No closed cavities design can make the unobstructed disperse of aqueous humor of outflow open; Described shape-memory material refers to through can flick and return to the solid material of original shape after folding at assigned address, as being used for folded form intraocular lens's silicon gel and acrylate; The folding described arcuation screening glass of being made by described shape-memory material (3) can make two described screening glass (3) implant under folded state; the bulbar conjunctiva and the Tenon capsule (fascia bulbi sheath tissue) that have reduced operative incision and needed to separate; reduce hemorrhage and damage; operating time is shortened; and the more for a short time scar healing reaction that evokes of damage will be more little; postoperative drainage pipe possibility of jamming is just more little, improves success rate of operation greatly.If inject viscoelastic agent earlier in the implantation space before implanting described drainage system; screening glass launches surrounding tissue is produced damage voluntarily in the time of can avoiding implanting; thereby reduced the generation of cicatrix reaction and post-operative complication; and the absorption in some days of viscoelastic agent needs, viscoelastic agent has the effect of anti-cicatrix simultaneously during this period.
In above-mentioned drainage system, the lateral wall of the described drainage tube (1) outside described no closed cavities cavity is provided with a fixing hole (4) that protrudes from described lateral wall, this fixing hole (4) can make operation suture thread pass, described drainage system is fixed in the shallow-layer sclera, nearer apart from limbus of corneae because of this fixing hole (4) design makes operation technique simple.
In above-mentioned drainage system, a described port (2) of described drainage tube (1) is positioned at the cavity center of described no closed cavities, to reduce the probability that obstruction takes place the outer mouth of pipe as far as possible.
In above-mentioned drainage system, two described screening glass (3) can be consistent with the surperficial radian of eyeball.
In above-mentioned drainage system, two described screening glass (3) can be oval, also can be other shape.
In above-mentioned drainage system, if two described screening glass (3) are oval, its widest part can be 7-13mm, as 10mm; Described ovate strong point can be 10-18mm, as 16mm.
In above-mentioned drainage system, described fixing hole (4) is 6-10mm with the air line distance of described screening glass (3) stiff end end points, as 8.5mm.
In above-mentioned drainage system, the external diameter of described drainage tube (1) can be 0.5-0.6mm, as 0.6mm; Internal diameter can be 0.25-0.40mm, as 0.3mm.
In above-mentioned drainage system, the length of described drainage tube (1) outside described no closed cavities cavity is 20-30mm, as 25mm.
Use the advantage of collapsible aqueous humor drainage device for glaucoma provided by the present invention to be: the design of the outer two-layer screening glass of the outer mouth of pipe can reduce the obstruction probability of drainage tube collar extension; The collapsible design of screening glass can reduce tissue injury; The present invention can obviously improve the success rate of glaucoma drain valve implantation, reduces the generation of post-operative complication.
Description of drawings
Fig. 1 is the longitudinal sectional drawing of the collapsible glaucoma aqueous humor drainage of the present invention device.
Fig. 2 is the vertical view of the collapsible glaucoma aqueous humor drainage of the present invention device.
Fig. 3 is the side view of the collapsible glaucoma aqueous humor drainage of the present invention device.
Fig. 4 is the side view of folded state for the collapsible glaucoma aqueous humor drainage of the present invention device.
Each labelling is as follows among the figure: 1 drainage tube, 2 ports, 3 screening glass, 4 fixing holes.
The specific embodiment
The present invention will be further described below in conjunction with accompanying drawing, but the present invention is not limited to following examples.
Collapsible glaucoma aqueous humor drainage device provided by the present invention comprises a drainage tube 1 and is fixed at folding two arcuation screening glass 3 of being made by shape-memory material on a port 2 lateral walls of this drainage tube 1; form a no closed cavities between two arcuation screening glass 3, a port 2 of drainage tube 1 is positioned at the cavity of this no closed cavities.Be provided with a fixing hole 4 that protrudes from the lateral wall in the lateral wall of no closed cavities cavity drainage tube 1.
The external diameter of drainage tube 1 is 0.6mm, and internal diameter is 0.3mm; Drainage tube 1 length overall 33mm, wherein the length outside no closed cavities cavity is 25mm, the length that stretches in the no closed cavities cavity is 8mm.Two screening glass 3 are consistent with the eyeball surface radian, are oval, and its widest part is 10mm, and strong point is 16mm.Fixing hole 4 is 8.5mm with the air line distance of the stiff end end points of screening glass 3.
In drainage device of the present invention; two screening glass 3 can be curled folding around drainage tube 1 bearing of trend; and can launch voluntarily; this screening glass can be made by materials such as silicon gel and acrylate; its shape and big I are determined according to patient's s own situation and actual needs, as are made into 3 kinds of sizes such as big-and-middle trumpet.
The method for implantation of drainage device of the present invention can be identical with the glaucoma drainage device implantation of routine; also can when implanting, only separate a less passage; earlier curl folding around the drainage tube bearing of trend two screening glass of drainage device of the present invention; implant the implantation space of filling up viscoelastic agent in advance; after treating that two screening glass launch voluntarily, operation method is disposed routinely again.
Claims (10)
1. an aqueous humor drainage device for glaucoma comprises a drainage tube (1), it is characterized in that: the lateral wall at the port (2) of described drainage tube (1) is fixed with two folding arcuation screening glass of being made by shape-memory material (3); Form a no closed cavities between described two arcuation screening glass (3), a described port (2) of drainage tube (1) is positioned at the cavity of this no closed cavities.
2. device according to claim 1, it is characterized in that: the lateral wall of the described drainage tube (1) outside described no closed cavities cavity is provided with a fixing hole (4) that protrudes from described lateral wall.
3. device according to claim 1 and 2, it is characterized in that: a described port (2) of described drainage tube (1) is positioned at the cavity center of described no closed cavities.
4. according to arbitrary described device among the claim 1-3, it is characterized in that: two described screening glass (3) are consistent with the eyeball surface radian.
5. according to arbitrary described device among the claim 1-4, it is characterized in that: two described screening glass (3) are oval.
6. device according to claim 5, it is characterized in that: described ovate the widest part is 7-13mm, described ovate strong point is 10-18mm.
7. according to arbitrary described device among the claim 2-6, it is characterized in that: described fixing hole (4) is 6-10mm with the air line distance of described screening glass (3) stiff end end points.
8. according to arbitrary described device among the claim 1-7, it is characterized in that: the external diameter of described drainage tube (1) is 0.5-0.6mm.
9. according to arbitrary described device among the claim 1-8, it is characterized in that: the internal diameter of described drainage tube (1) is 0.25-0.40mm.
10. according to arbitrary described device among the claim 1-9, it is characterized in that: the length of described drainage tube (1) outside described no closed cavities cavity is 20-30mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100500408A CN103284831A (en) | 2012-02-29 | 2012-02-29 | Foldable glaucoma aqueous humor drainage device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100500408A CN103284831A (en) | 2012-02-29 | 2012-02-29 | Foldable glaucoma aqueous humor drainage device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103284831A true CN103284831A (en) | 2013-09-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100500408A Pending CN103284831A (en) | 2012-02-29 | 2012-02-29 | Foldable glaucoma aqueous humor drainage device |
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| Country | Link |
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| CN (1) | CN103284831A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104042402A (en) * | 2013-12-26 | 2014-09-17 | 孙宗信 | Glaucoma drainage device |
| CN113081474A (en) * | 2021-03-31 | 2021-07-09 | 武汉爱尔眼科医院有限公司 | Adjustable aqueous humor drainage device for glaucoma eyes and use method |
| CN113576749A (en) * | 2021-07-30 | 2021-11-02 | 温州医科大学 | Glaucoma drainage device |
| WO2023102596A1 (en) * | 2021-12-07 | 2023-06-15 | Yu Xiang George Kong | An ocular implant for the treatment of glaucoma |
Citations (7)
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| US4729761A (en) * | 1985-11-27 | 1988-03-08 | White Thomas C | Tissue-implantable, fluid-dissipating device |
| WO1996020742A1 (en) * | 1995-01-06 | 1996-07-11 | Wong Vernon G | Improve eye implant for relief of glaucoma |
| US5752928A (en) * | 1997-07-14 | 1998-05-19 | Rdo Medical, Inc. | Glaucoma pressure regulator |
| CN1466934A (en) * | 2003-02-21 | 2004-01-14 | 杭州百康医用技术有限公司 | Intraocular phototropism lens and implantation method |
| CN101791258A (en) * | 2002-07-19 | 2010-08-04 | 耶鲁大学 | Uveoscleral drainage device |
| CN102271633A (en) * | 2009-01-12 | 2011-12-07 | 爱尔康研究有限公司 | Capsularhexis device with retractable bipolar electrodes |
| CN202619978U (en) * | 2012-02-29 | 2012-12-26 | 北京大学第三医院 | Foldable glaucoma aqueous humor drainage instrument |
-
2012
- 2012-02-29 CN CN2012100500408A patent/CN103284831A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4729761A (en) * | 1985-11-27 | 1988-03-08 | White Thomas C | Tissue-implantable, fluid-dissipating device |
| WO1996020742A1 (en) * | 1995-01-06 | 1996-07-11 | Wong Vernon G | Improve eye implant for relief of glaucoma |
| US5752928A (en) * | 1997-07-14 | 1998-05-19 | Rdo Medical, Inc. | Glaucoma pressure regulator |
| CN101791258A (en) * | 2002-07-19 | 2010-08-04 | 耶鲁大学 | Uveoscleral drainage device |
| CN1466934A (en) * | 2003-02-21 | 2004-01-14 | 杭州百康医用技术有限公司 | Intraocular phototropism lens and implantation method |
| CN102271633A (en) * | 2009-01-12 | 2011-12-07 | 爱尔康研究有限公司 | Capsularhexis device with retractable bipolar electrodes |
| CN202619978U (en) * | 2012-02-29 | 2012-12-26 | 北京大学第三医院 | Foldable glaucoma aqueous humor drainage instrument |
Non-Patent Citations (2)
| Title |
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| 吴瑜瑜: "青光眼引流性植入物的研究进展", 《国外医学眼科学分册》 * |
| 孟娜: "青光眼房水引流装置的研究进展", 《国际眼科杂志》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104042402A (en) * | 2013-12-26 | 2014-09-17 | 孙宗信 | Glaucoma drainage device |
| CN113081474A (en) * | 2021-03-31 | 2021-07-09 | 武汉爱尔眼科医院有限公司 | Adjustable aqueous humor drainage device for glaucoma eyes and use method |
| CN113576749A (en) * | 2021-07-30 | 2021-11-02 | 温州医科大学 | Glaucoma drainage device |
| CN113576749B (en) * | 2021-07-30 | 2024-03-15 | 温州医科大学 | Glaucoma drainage device |
| WO2023102596A1 (en) * | 2021-12-07 | 2023-06-15 | Yu Xiang George Kong | An ocular implant for the treatment of glaucoma |
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Application publication date: 20130911 |