CN2237430Y - Draining disc for humor aquosus of glaucoma - Google Patents
Draining disc for humor aquosus of glaucoma Download PDFInfo
- Publication number
- CN2237430Y CN2237430Y CN 95216349 CN95216349U CN2237430Y CN 2237430 Y CN2237430 Y CN 2237430Y CN 95216349 CN95216349 CN 95216349 CN 95216349 U CN95216349 U CN 95216349U CN 2237430 Y CN2237430 Y CN 2237430Y
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- CN
- China
- Prior art keywords
- glaucoma
- drainage
- aqueous humor
- dish
- drain
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- Expired - Fee Related
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Abstract
The utility model relates to a drainage disc device for aqueous humor of glaucoma. A pressure ridge (4) is arranged on the drainage disc (2), and the action is to reach the blocking effect on the early aqueous humor drainage to prevent or reduce the occurrence of early shallow anterior chamber and ocular hypotension after operation. A through hole (3) increases the aqueous humor drainage area and prevents the late drainage disc from moving, and connecting holes (5) at both sides of the drainage disc (2) are convenient to connect other drainage discs after the operation fails at the time of operation once again. The drainage disc device for aqueous humor of glaucoma of the utility model is suitable for glaucoma, particularly for the treatment of intractable glaucomatous, has good operation effect and can solve the problem that the type of glaucoma is treated without special effective treatment clinically at present.
Description
The utility model relates to glaucoma aqueous humor drainage dish device, be applicable to the treatment glaucoma, be particularly useful for treating intractable glaucoma (intractable glaucoma).
As everyone knows, has the high intraocular pressure of pathologic or look the nipple blood perfusion is bad to cause that optic nerve lesion and visual function obstacle person promptly are called glaucoma.Aqueous humor is secreted by ciliary processes in the eyeball, and under normal circumstances, the tolerant volume three of aqueous humor production rate, aqueous humor discharge rate and ophthalmic is in dynamic balance state, has certain pressure in the eyeball and claims intraocular pressure, normally remains on 10-21mmHg; If three's dynamic equilibrium imbalance, be obstructed in any position, aqueous humor peripheral passage, then causes intraocular pressure to raise and surpass 24mmHg, and then cause that papilla of optic nerve generation pathologic changes, and finally causes losing one's sight.If occur violent ophthalmalgia during the angle-closure glaucoma acute attack, headache and with symptom such as feeling sick, vomiting, vision fall sharply causes very big misery to patient, even blinding.Adopt conventional glaucoma filtration operation (as trabeculectomy) that glaucomatous intraocular pressure is reduced, but postoperative is owing to the fibrous tissue round the sclera fistulization oral forms sometimes, or fistulization oral is stopped up by iris, corpus ciliare or vitreous body, or the capsule type of some patient's postoperative formation filters bubble and pancake filters bubble etc., all can cause operative failure.Also have some glaucomas very poor to the filtering surgery curative effect of routine, as neovascular glaucoma, no crystal/artificial intraocular lenses's property glaucoma, congenital/juvenile glaucoma, uvea inflammatory glaucoma, glaucoma etc. behind the glaucoma of traumatic glaucoma, iris corneal endothelium syndrome, repeatedly filtering surgery failure and the retina operation on vitreous, these are called as " intractable glaucoma " or intractable glaucoma, adopt the method for inserting glaucoma aqueous humor drainage thing to be treated to it.In the effusive aqueous humor of aqueous humor drainage thing can lead bulbar conjunctiva gap, rear portion, vein or eye socket tissue and be absorbed, reduce and keep intraocular pressure to reach in certain level, keep the purpose of visual function.
The glaucoma aqueous humor drainage thing that uses has two kinds at present: a kind of is that valving is arranged, and another kind is the valveless device.
1, valveless device
This device is silica gel tube (the internal diameter 0.3mm that will be about 20-30mm, external diameter 0.63mm) end is connected in outside the sclera of in the groove of the groove shape silicone band of 180 °-360 ° of aequator oculi (groove is towards sclera) or other shape and different sizes on the attachment, the other end mouth of pipe is cut into the inclined-plane and inserts in the anterior chamber, long 2-3mm.
In clinical practice, postoperative shallow of anterior chamber, hyphema, the drain mouth of pipe can occur by fibrous tissue obstruction, cataract, drainage tube and complication such as corneal endothelium contacts.
2, valving is arranged
The long tube of band valve is connected on 90 °-180 ° the outer attachment of sclera.It comprises: a) silica gel tube of an opening (external diameter 0.64mm, internal diameter 0.3mm); B) have the silicone band of groove shape or the drain dish of other shape.During operation, an end of tubule is inserted the anterior chamber, other end sealing place has the pressure sensibility valve of the unidirectional drain in one " cross " shape crack, is fixed in valve in the groove shape silicone band or on the drain dish, the open pressure of valve is 11mmHg, and occlusion pressure is 9mmHg.Also find that in clinical practice this device can cause post-operative complication such as shallow of anterior chamber, ocular hypotension and detachment of choroid.In addition, the valve performance instability of setting can be opened sometimes, does not open sometimes, causes aqueous humor drainage not smooth when not opening, and intraocular pressure can not reduce.
Sum up above two kinds of glaucoma aqueous humor drainage and insert thing, the drainage tube of inserting the anterior chamber and the suprascleral attachment behind aequator oculi are all arranged, but the end of drainage tube can have also valveless.The thing of inserting of version has brought in clinical practice such as above-mentioned post-operative complication like this, causes suffering to the patient.
For addressing the above problem, must on structure, be improved inserting thing, intraocular pressure is reduced, and lasting stability, and then the sufferings of solution intractable glaucoma patient, the prevention patient is blind.
Main task of the present utility model is by increasing an outstanding pressure ridge on the attachment outside sclera, place obstacles with the drain of adversary's postoperative aqueous humor, and then promotes that postoperative can recover the anterior chamber in early days, reduces or avoids post-operative complication to finish.
Below in conjunction with accompanying drawing this utility model is described in further details.
Accompanying drawing 1 is the sketch map of concrete structure of the present utility model.
With reference to accompanying drawing 1, the utility model is by aqueous humor drainage tubule (1), drainage disc (2), the fixed edge of through hole (3), pressure ridge (4), connecting hole (5), dish (6) and peripheral ridge (7) form.
Pressure ridge (4) is positioned at the place ahead of drainage disc (2), and area is about 18mm2, Its shape can be triangle, also can be arc, and the height of its projection is about 0.4mm, than The low 0.3mm of periphery ridge (7), this pressure ridge (4) is divided into two with drainage disc (2) Part, its effect are that the early postoperative period aqueous humor has been flowed out certain Intercepting effects, can be effectively The generation of the complication such as prevention or the minimizing early stage shallow of anterior chamber of postoperative and low intraocular pressure.
Through hole (3) is positioned at the central authorities of drain dish (2), and through the upper and lower surface of drain dish (2), its quantity can be 1, more than 2 or 2, decides according to practical situation.Its effect is that postoperative can increase the drain area, simultaneously with the upper and lower surface of aqueous humor introducing dish and around, the functional aqueous humor drainage that helps forming disperse state filters bubble, to keep postoperative normal intraocular tension state.Postoperative late period, because outgrowth fibrous tissue plays a part the restriction rear portion and filters bubble height and capacity as " rivet " in the aperture, this has just prevented moving of later stage drain dish (2), and the while has also reduced the malaise symptoms of patient's postoperative.
Connecting hole (5) is positioned at the both sides of drain dish (2), and its effect is to connect other drain dishes when being convenient to perform the operation once more behind the single-deck operative failure to become double plate or three dish drainage systems, if single-deck is performed the operation successfully, then there is no need to use connecting hole (5).
The shape of drain dish (2) can be circular, oval or fan-shaped, but with fan-shaped be best because this shape is more easily installed and is fixed.The big or small radian of drain dish (2) is moderate, and is identical substantially with two extraocular muscles gaps and sclera flexibility, do not influence movement of extraocular muscles after the operation, do not give the patient sensation with discomfort.The edge of drain dish (2) has the high peripheral ridge (7) that rises in addition, can form the filtration bubble behind the aequator oculi, is beneficial to drain aqueous humor.Between drain dish (2) and drainage tube (1), a fixed edge (6) is arranged, play fixedly drain dish (2) and drainage tube (1).
In clinical practice, glaucoma aqueous humor drainage dish of the present utility model (2) is inserted between two extraocular muscles, front end with drainage tube inserts in the anterior chamber earlier, aqueous humor is in drainage tube (1) is introduced the pressure ridge (4) of drain dish (2), also can pass through through hole (3) surface dispersion downwards to the upper surface disperse of drain dish (2) again, intraocular pressure is reduced steadily.If operative failure can utilize the connecting hole (5) of side to be connected with another drain dish for the first time, forming a new filtration bubble elsewhere again.
Of the present utility model novel, the structure uniqueness is applicable to glaucoma patient, the operative treatment of intractable glaucoma patient especially, and its postoperative effect is good, has reduced post-operative complication, and has alleviated patient's misery, to preserve patient's visual function.
Claims (4)
1, a kind of glaucoma aqueous humor drainage dish forms, it is characterized in that by aqueous humor drainage pipe (1), drain dish (2) pressure ridge (4) is arranged on the drain dish (2).
2, glaucoma aqueous humor drainage dish as claimed in claim 1 is characterized in that in the upper and lower surface of drain dish (2) through hole (3) being arranged.
3, glaucoma aqueous humor drainage dish as claimed in claim 1 is characterized in that in the both sides of drain dish (2) connecting hole (5) being arranged.
4, glaucoma aqueous humor drainage dish as claimed in claim 1 is characterized in that drain dish (2) is for fan-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95216349 CN2237430Y (en) | 1995-07-20 | 1995-07-20 | Draining disc for humor aquosus of glaucoma |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95216349 CN2237430Y (en) | 1995-07-20 | 1995-07-20 | Draining disc for humor aquosus of glaucoma |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2237430Y true CN2237430Y (en) | 1996-10-16 |
Family
ID=33865460
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95216349 Expired - Fee Related CN2237430Y (en) | 1995-07-20 | 1995-07-20 | Draining disc for humor aquosus of glaucoma |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2237430Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002011653A1 (en) * | 2000-05-26 | 2002-02-14 | Ruoyu Yang | Artificial trabecula support |
| CN102908226A (en) * | 2012-11-12 | 2013-02-06 | 杨勋 | Stable self-dredge glaucoma nail |
| CN101360999B (en) * | 2005-11-22 | 2013-07-17 | 麦吉尔大学 | Intraocular pressure-regulated early genes and uses thereof |
| CN105377202A (en) * | 2013-05-13 | 2016-03-02 | Itht3普拉斯有限公司 | Drain valve implantable in the eye of a patient for the treatment of glaucoma |
| 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 |
-
1995
- 1995-07-20 CN CN 95216349 patent/CN2237430Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002011653A1 (en) * | 2000-05-26 | 2002-02-14 | Ruoyu Yang | Artificial trabecula support |
| CN101360999B (en) * | 2005-11-22 | 2013-07-17 | 麦吉尔大学 | Intraocular pressure-regulated early genes and uses thereof |
| CN102908226A (en) * | 2012-11-12 | 2013-02-06 | 杨勋 | Stable self-dredge glaucoma nail |
| CN102908226B (en) * | 2012-11-12 | 2014-07-09 | 杨勋 | Stable self-dredge glaucoma nail |
| CN105377202A (en) * | 2013-05-13 | 2016-03-02 | Itht3普拉斯有限公司 | Drain valve implantable in the eye of a patient for the treatment of glaucoma |
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |