CN111956392A - Glaucoma drainage device - Google Patents
Glaucoma drainage device Download PDFInfo
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- CN111956392A CN111956392A CN202010896062.0A CN202010896062A CN111956392A CN 111956392 A CN111956392 A CN 111956392A CN 202010896062 A CN202010896062 A CN 202010896062A CN 111956392 A CN111956392 A CN 111956392A
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- drainage
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- liquid storage
- storage cavity
- aqueous humor
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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
- A61F9/00736—Instruments for removal of intra-ocular material or intra-ocular injection, e.g. cataract instruments
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- Ophthalmology & Optometry (AREA)
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Abstract
The present invention provides a glaucoma drainage device for draining aqueous humor to a tissue or lymphatic vessel, comprising: the drainage tray is provided with an upper surface and a lower surface, the upper surface is provided with a plurality of spoke-shaped uniformly-dispersed drainage grooves, and a drainage pipe groove is formed between the upper surface and the lower surface; the drainage tube passes through the drainage tube groove and is used for inflow of aqueous humor; and the liquid storage cavity is vertically arranged at the central position of the drainage plate and is connected with the drainage tube passing through the drainage tube groove, the liquid storage cavity is also communicated with the drainage grooves and is used for placing aqueous humor which is guided to the liquid storage cavity by the drainage tube through the drainage tube groove, and the aqueous humor in the liquid storage cavity overflows and then flows into the drainage grooves, wherein a covering layer is arranged above the liquid storage cavity and is used for covering the liquid storage cavity and the communication positions of the drainage grooves and the liquid storage cavity. The invention solves the problems of non-uniform outflow and easy blockage of the drainage device.
Description
Technical Field
The invention belongs to the technical field of medical instruments, and particularly relates to a glaucoma drainage device.
Background
Glaucoma is currently the second ranked irreversible blinding disease worldwide. Pathological increased intraocular pressure is a major risk factor for irreversible damage to the optic nerve caused by glaucoma disease. The current treatments for glaucoma are mainly drug therapy and drainage implant therapy. The current primary treatment for refractory glaucoma is aqueous humor drainage implant surgery.
However, the existing aqueous humor drainage outlet is often wrapped by surrounding scar tissues, so that the aqueous humor drainage is not smooth and finally loses effectiveness. In addition, in view of the fact that the uniformity of aqueous outflow has not been fully considered in the prior art, this may affect the stimulation of the cells by the drainage, for example, the existing drainage devices are all introduced from one side of the inlet, and the outlet is disposed at the other side, which may result in the aqueous outflow not reaching a reliable uniformity. Therefore, there is a need for a drainage device that can solve such problems.
Disclosure of Invention
The present invention has been made to solve the above problems, and an object of the present invention is to provide a glaucoma drainage device capable of solving the problem of high ocular pressure in glaucoma patients.
The present invention provides a glaucoma drainage device for draining aqueous humor to tissue or lymphatic vessels having the characteristics of comprising: the drainage tray is provided with an upper surface and a lower surface, a plurality of spoke-shaped uniformly-dispersed drainage grooves are formed in the upper surface, and drainage pipe grooves are formed between the upper surface and the lower surface; the drainage tube passes through the drainage tube groove and is used for inflow of aqueous humor; and the liquid storage cavity is vertically arranged at the central position of the drainage disc and is connected with the drainage tube passing through the drainage tube groove, the liquid storage cavity is also communicated with the drainage grooves and is used for placing aqueous humor which is guided to the liquid storage cavity through the drainage tube, and the aqueous humor in the liquid storage cavity flows into the drainage grooves after overflowing, wherein a covering layer is arranged above the liquid storage cavity and is used for covering the liquid storage cavity and the communication positions of the drainage grooves and the liquid storage cavity.
In the glaucoma drainage device provided by the present invention, the glaucoma drainage device may further have the following features: wherein, still be provided with two fixed orificess on the drainage dish symmetrically for be fixed in eyeball sclera surface with the drainage dish, the camber of drainage dish and the camber laminating of eyeball.
In the glaucoma drainage device provided by the present invention, the glaucoma drainage device may further have the following features: wherein, the runner cross-section of drainage groove is rectangle or trapezoidal, and quantity adjusts according to the actual demand.
In the glaucoma drainage device provided by the present invention, the glaucoma drainage device may further have the following features: the drainage pipe groove is a circular groove or a square groove used for placing the drainage pipe and clinging to the drainage pipe, when the drainage pipe groove is the circular groove, the inner diameter of the drainage pipe groove is larger than the inner diameter of the drainage pipe, and when the drainage pipe groove is the square groove, the width of the drainage pipe groove is larger than the inner diameter of the drainage pipe.
In the glaucoma drainage device provided by the present invention, the glaucoma drainage device may further have the following features: wherein the liquid storage cavity is cylindrical.
In the glaucoma drainage device provided by the present invention, the glaucoma drainage device may further have the following features: wherein, the drainage tube exit is provided with circular oblique single-open door, and the diameter of oblique single-open door is greater than the diameter of drainage tube, and when the pressure of aqueous humor reached 17-21mmHg, oblique single-open door opened, and the aqueous humor flowed into the stock solution chamber, and then flowed into the drainage groove.
In the glaucoma drainage device provided by the present invention, the glaucoma drainage device may further have the following features: wherein, the curvature of drainage tube and the curvature laminating of eyeball.
Action and Effect of the invention
According to the glaucoma drainage device, the plurality of spoke-shaped uniformly-dispersed drainage grooves are formed in the upper surface of the drainage disc, so that aqueous humor can uniformly disperse and flow out of the periphery after overflowing the liquid storage cavity; because the outlet of the liquid storage cavity is arranged at the central position of the drainage disc, aqueous humor can be uniformly, effectively and quickly distributed to each outlet, so that different stimulations to tissues caused by uneven distribution and untimely distribution are reduced; because the drainage tray is covered with the covering layer, the risk that the outlet of the drainage tube channel and the outlet of the drainage groove are blocked under the influence of external partial conditions can be reduced, and the success rate of glaucoma drainage implant implantation surgery is further improved.
Therefore, the glaucoma drainage device of the embodiment solves the problem of the outflow nonuniformity of aqueous humor, reduces the local impact force of the aqueous humor on cell tissues, also solves the problem that the drainage device is wrapped and blocked by scar tissues, and reduces the irritation to cells and the occurrence of postoperative complications.
Drawings
Fig. 1 is a schematic structural view of a glaucoma drainage device in an embodiment of the present invention;
fig. 2 is a top view of a drainage tray of a glaucoma drainage device in an embodiment of the present invention;
FIG. 3 is a schematic cross-sectional view taken at B-B of FIG. 2 in accordance with the present invention;
fig. 4 is a schematic cross-sectional view at C-C of fig. 2 of the present invention.
Detailed Description
In order to make the technical means and functions of the present invention easy to understand, the present invention is specifically described below with reference to the embodiments and the accompanying drawings.
Example (b):
fig. 1 is a schematic structural view of a glaucoma drainage device in an embodiment of the present invention, and fig. 2 is a top view of a drainage tray of the glaucoma drainage device in an embodiment of the present invention, wherein the positions B-B and C-C indicate the cuts at the drainage canals.
As shown in fig. 1 and 2, the present embodiment provides a glaucoma drainage device 100 for draining aqueous humor to a tissue or a lymphatic vessel, comprising: drainage disk 1, drainage tube 2 and stock solution chamber 3.
Fig. 3 is a schematic sectional view at B-B of fig. 2 of the present invention, and fig. 4 is a schematic sectional view at C-C of fig. 2 of the present invention.
As shown in fig. 3 and 4, the drainage plate 1 has an upper surface and a lower surface, and a plurality of drainage grooves 4 which are spoke-shaped and uniformly dispersed are formed in the upper surface, a drainage pipe groove 5 is formed between the upper surface and the lower surface, the drainage pipe groove 5 is close to the lower surface, and the number of the drainage grooves 4 is adjusted according to actual requirements.
In this embodiment, the drainage plate 1 is further symmetrically provided with two fixing holes 6 for fixing the drainage plate 6 on the sclera surface of the eyeball, and the curvature of the drainage plate 1 is attached to the curvature of the eyeball.
In this embodiment, the curvature of the drainage plate 1 is 13mm, and the curvature of the drainage plate 1 may be adjusted according to the specific situation so as to adapt to the curvature of the eyeball, which is not fixed.
In this embodiment, the number of the drainage grooves 4 is 8, all the drainage grooves are open channels through which the aqueous humor can flow, the channels in the middle of each drainage groove 4 are covered by the covering layer 8, and the shapes of the channels from the center to the outlet of each drainage groove 4 are consistent, so that the aqueous humor outflow uniformity is enhanced, and the cross section of each channel is completely uniform and regular, such as rectangular or trapezoidal, so that the outflow uniformity is further ensured on the premise of preventing clogging.
Wherein, drainage tube groove 5 is used for placing drainage tube 2 and hugs closely circular slot or the square trough of drainage tube 2, and when drainage tube groove 5 was the circular trough, its internal diameter was greater than the internal diameter of drainage tube 2, and when drainage tube groove 5 was the square trough, its width was greater than the internal diameter of drainage tube 2, and it is because drainage tube groove 5 need place drainage tube 2, so the internal diameter or the width of drainage tube groove 5 slightly than drainage tube 2 can.
In this embodiment, the drainage tube groove is a circular groove, and the inner diameter thereof is 0.4 mm.
The drainage tube 2 passes through the drainage tube groove 5 for inflow of aqueous humor.
In this embodiment, drainage tube 2 exit is provided with circular shape oblique singly to open door 7, and the diameter of the singly opening door 7 to one side is greater than the diameter of drainage tube 2 to prevent the aqueous humor backward flow of stock solution chamber 3, in addition, when the pressure of aqueous humor reaches 17-21mmHg, the singly opening door 7 to one side is opened, and the aqueous humor flows into stock solution chamber 3, and then flows in drainage groove 4.
In addition, the curvature of the drainage tube 2 conforms to the curvature of the eyeball.
In this embodiment, the radius of curvature of the drainage tube 2 is 14.5mm, and the inner diameter is 0.3mm, and in addition, since the drainage tube 2 is to be inserted into the anterior chamber, the drainage tube 2 is actually a foreign body. Therefore, the smaller the draft tube 2 should be, the better, so that the inner diameter of the draft tube 2 takes the minimum range that can be achieved.
In this embodiment, stock solution chamber 3 is cylindricly, and the size of the internal diameter of stock solution chamber 3 is based on near drainage groove 4 sets up, can not hinder aqueous humor normal outflow drainage groove 4, so selected suitable numerical value 1.2mm, and when concrete in service behavior is different, stock solution chamber 3's internal diameter can be adjusted.
In this embodiment, the top in stock solution chamber 3 is provided with overburden 8, and mainly used covers stock solution chamber 3 and drainage groove 4 and the intercommunication position in stock solution chamber 3, prevents to organize and gets into stock solution chamber 3, causes the influence to it, and the preceding arc part in drainage groove 4 is organized the parcel easily, has just covered the risk that has reduced in other words by the parcel.
In addition, the covering area of the covering layer 8 is 1/2 of the top area of the diversion disc 1, the ratio can be adjusted as long as the ratio is proper, so that the outlets of the drainage grooves 4 are difficult to block, and the smaller the thickness of the covering layer 8, the better the thickness is, the minimum value of the workable thickness is required, so the thickness of the covering layer 8 in the embodiment is 0.15 mm.
The glaucoma drainage device of this embodiment works as follows:
in the glaucoma drainage device 100 of the present embodiment, after the aqueous humor enters the drainage tube 2, the oblique single-open door 7 is opened when the aqueous humor pressure reaches a certain value, so that the aqueous humor is guided to the liquid storage cavity 3 of the central position of the drainage tray 1, and the aqueous humor in the liquid storage cavity 3 flows into the drainage grooves 4 of each spoke shape after overflowing and is uniformly dispersed until being absorbed by tissues or lymphatic vessels after flowing out of each drainage groove 4.
Effects and effects of the embodiments
According to the glaucoma drainage device related to the embodiment, the upper surface of the drainage disc is provided with the plurality of spoke-shaped uniformly-dispersed drainage grooves, so that the water can uniformly disperse and flow out from the periphery after overflowing the liquid storage cavity; because the outlet of the liquid storage cavity is arranged at the central position of the drainage disc, aqueous humor can be uniformly, effectively and quickly distributed to each outlet, so that different stimulations to tissues caused by uneven distribution and untimely distribution are reduced; because the drainage tray is covered with the covering layer, the risk that the outlet of the drainage tube channel and the outlet of the drainage groove are blocked under the influence of external partial conditions can be reduced, and the success rate of glaucoma drainage implant implantation surgery is further improved.
According to the glaucoma drainage device of the present embodiment, since the two fixing holes are symmetrically formed in the drainage plate, the drainage plate can be fixed to the sclera surface of the eyeball.
According to the glaucoma drainage device of the present embodiment, since the flow channel cross section of the drainage groove has a completely uniform regular shape, the uniformity of the outflow can be further ensured on the premise of preventing clogging.
According to the glaucoma drainage device related to the embodiment, because the inclined single-opening door is arranged at the outlet of the flow pipe, and the diameter of the inclined single-opening door is larger than that of the drainage pipe, the aqueous humor in the liquid storage cavity can be prevented from flowing back.
Therefore, the glaucoma drainage device of the embodiment solves the problem of the outflow nonuniformity of aqueous humor, reduces the local impact force of the aqueous humor on cell tissues, also solves the problem that the drainage device is wrapped and blocked by scar tissues, and reduces the irritation to cells and the occurrence of postoperative complications.
The above embodiments are preferred examples of the present invention, and are not intended to limit the scope of the present invention.
Claims (7)
1. A glaucoma drainage device for draining aqueous humor to a tissue or lymphatic vessel, comprising:
the drainage tray is provided with an upper surface and a lower surface, a plurality of spoke-shaped uniformly-scattered drainage grooves are formed in the upper surface, and drainage pipe grooves are formed between the upper surface and the lower surface;
the drainage tube penetrates through the drainage tube groove and is used for inflow of the aqueous humor; and
a liquid storage cavity vertically arranged at the central position of the drainage tray and connected with the drainage tube after passing through the drainage tube groove, the liquid storage cavity is also communicated with the drainage grooves and used for placing the aqueous humor which is guided to the liquid storage cavity through the drainage tube, and the aqueous humor in the liquid storage cavity flows into the drainage grooves after overflowing,
wherein, the top in stock solution chamber is provided with the overburden, be used for covering stock solution chamber and the drainage groove with the intercommunication position in stock solution chamber.
2. The glaucoma drainage device of claim 1 wherein:
wherein the drainage disc is also symmetrically provided with two fixing holes for fixing the drainage disc on the sclera surface of the eyeball,
the curvature of the drainage disk is matched with the curvature of the eyeball.
3. The glaucoma drainage device of claim 1 wherein:
the cross section of the flow channel of the drainage groove is rectangular or trapezoidal, and the quantity of the flow channel is adjusted according to actual requirements.
4. The glaucoma drainage device of claim 1 wherein:
wherein the drainage pipe groove is a round groove or a square groove which is used for placing the drainage pipe and clings to the drainage pipe,
when the drainage pipe groove is a circular groove, the inner diameter of the drainage pipe groove is larger than that of the drainage pipe,
when the drainage tube groove is a square groove, the width of the drainage tube groove is larger than the inner diameter of the drainage tube.
5. The glaucoma drainage device of claim 1 wherein:
wherein, the liquid storage cavity is cylindrical.
6. The glaucoma drainage device of claim 1 wherein:
wherein a round inclined single-opening door is arranged at the outlet of the drainage tube, the diameter of the inclined single-opening door is larger than that of the drainage tube,
when the pressure of the aqueous humor reaches 17-21mmHg, the inclined single-door is opened, and the aqueous humor flows into the liquid storage cavity and further flows into the drainage groove.
7. The glaucoma drainage device of claim 1 wherein:
wherein, the curvature of drainage tube and the curvature of eyeball are laminated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010896062.0A CN111956392B (en) | 2020-08-31 | 2020-08-31 | Glaucoma drainage device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010896062.0A CN111956392B (en) | 2020-08-31 | 2020-08-31 | Glaucoma drainage device |
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| Publication Number | Publication Date |
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| CN111956392A true CN111956392A (en) | 2020-11-20 |
| CN111956392B CN111956392B (en) | 2022-11-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010896062.0A Active CN111956392B (en) | 2020-08-31 | 2020-08-31 | Glaucoma drainage device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
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| Publication number | Publication date |
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| CN111956392B (en) | 2022-11-29 |
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