CN215606822U - Glaucoma drainage device and drainage implant therefor - Google Patents

Abstract

The application provides a glaucoma drainage implant, glaucoma drainage implant includes the arc pipeline of cavity type, and the outer wall that the central point was kept away from to the arc pipeline is formed with the barb structure that is used for increasing friction that a plurality of intervals set up, and the barb structure does not stand out in the arc pipeline. The application still provides a glaucoma drainage device, the glaucoma drainage device of this application and glaucoma drainage implant through set up barb structure increase and schlemm between the pipe frictional force to avoid removing, long-term treatment is effectual.

Description

Glaucoma drainage device and drainage implant therefor

Technical Field

The application relates to the technical field of medical equipment, in particular to a glaucoma drainage device and a drainage implant thereof.

Background

Glaucoma (glaucoma) is a group of diseases characterized by atrophy and depression of the optic papilla, visual field loss and visual deterioration, pathological increased intraocular pressure and insufficient blood supply to the optic nerve are primary risk factors of the onset of the glaucoma, and the tolerance of the optic nerve to pressure damage is also related to the occurrence and development of the glaucoma. Obstruction of any ring in the aqueous humor circulatory pathway can lead to pathological changes caused by elevated intraocular pressure, but some patients also present with normal tension glaucoma. Glaucoma is one of three major blinding diseases causing blindness in humans, with a total incidence of 1% and 2% after age 45. Clinically, glaucoma is classified into three major categories, primary, secondary and congenital, according to etiology, angle of the atrium, tonography and the like.

In the prior art, it is common to implant a drainage implant inside the eye of the human body to reestablish an aqueous humor outflow pathway, thereby lowering intraocular pressure for therapeutic purposes. However, the drainage implants in the prior art are generally unstable and easy to move after being implanted into schlemm tubes, and aqueous humor only flows through openings at two ends of the implants, so that the flow area is small.

SUMMERY OF THE UTILITY MODEL

The application provides a glaucoma drainage device and drainage implant thereof to solve the problem that the drainage implant easily moves among the prior art.

In order to solve the technical problem, the application adopts a technical scheme that: the utility model provides a glaucoma drainage implant, glaucoma drainage implant include the arc pipeline of cavity type, and the outer wall that the central point was kept away from to the arc pipeline is formed with the barb structure that is used for increasing friction that a plurality of intervals set up, and the barb structure does not stand out in the arc pipeline.

Wherein the barb structure is formed by a through-hole of the outer wall.

Wherein, the through hole is in a concave shape with the arc transition of the inner ring.

Wherein, the arc pipeline has first barb unit and second and falls the thorn unit, and first barb unit and second fall the thorn unit and all include a plurality of barb structures, and the barb direction of the barb structure of first barb unit is opposite with the barb direction of the barb structure of second barb unit.

Wherein the geometric center spacing distance of two adjacent barb structures is 0.2-0.5 mm.

In order to solve the above technical problem, another technical solution adopted by the present application is: a glaucoma drainage device is provided that includes a glaucoma drainage implant as described above.

The beneficial effect of this application is: be different from prior art's condition, the application provides a glaucoma drainage device and glaucoma drainage implant thereof for through being formed with the barb structure at the outer wall of arc pipeline keeping away from the central point, make the frictional force increase between glaucoma drainage implant and the schlemm pipe, thereby avoid removing, long-term treatment is effectual.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the application, the drawings that are needed to be used in the description of the embodiments are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the application, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:

fig. 1 is a schematic view of a first embodiment of a glaucoma drainage implant according to the present application;

fig. 2 is another schematic view of the glaucoma drainage implant of fig. 1;

FIG. 3 is an enlarged schematic view of portion A shown in FIG. 2;

fig. 4 is a schematic view of a viewing angle configuration of a second embodiment of a glaucoma drainage implant of the present application;

fig. 5 is another perspective view configuration of the glaucoma drainage implant shown in fig. 4.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any inventive step based on the embodiments in the present application, are within the scope of protection of the present application.

Referring to fig. 1-3, fig. 1 is a schematic view of a first embodiment of a glaucoma drainage implant according to the present application; fig. 2 is another schematic view of the glaucoma drainage implant of fig. 1; fig. 3 is an enlarged schematic view of a portion a shown in fig. 2. In this embodiment, glaucoma drainage implant includes the arc pipeline of cavity type, and the outer wall that the arc pipeline kept away from the central point is formed with the barb structure 100 that is used for increasing friction that a plurality of intervals set up, and barb structure 100 does not stand out in the arc pipeline. Preferably, the barb structure 100 is formed by a through hole of the outer wall, specifically, a concave-like through hole with an inner circle arc transition is formed on the outer wall, so that the remaining outer wall is provided with the barb structure 100, the barb structure formed in this way does not protrude out of the outer wall, and the inner circle of the through hole is in an arc transition, which does not cause damage to eyes.

Preferably, the geometric centers of two adjacent barb structures 100 are spaced apart a distance L of 0.2-0.5mm, more preferably 0.3 mm. Experiments prove that the barb structure within the interval distance range can be arranged on the arc-shaped pipeline as many as possible, and the friction force of the barb structure is proper.

Compared with other friction-increasing structures, the barb structure for increasing friction is easier to realize in the processing technology, and is more convenient to position due to good consistency of the barb.

Referring to fig. 4 and 5, fig. 4 is a schematic view of a second embodiment of a glaucoma drainage implant according to the present application; fig. 5 is another perspective view configuration of the glaucoma drainage implant shown in fig. 4. The glaucoma drainage implant of the present embodiment is different from the previous embodiment in that the arc-shaped pipe has a first barb unit 200 and a second barb unit 300, the first barb unit 200 and the second barb unit 300 each include a plurality of barb structures, and the barb direction of the barb structure of the first barb unit 200 is opposite to the barb direction of the barb structure of the second barb unit 300. Compared with the barb structure with the completely same direction, the barb structure with the reverse barb structure can increase friction in two directions of entering and exiting, and is more beneficial to positioning.

The application also provides a glaucoma drainage device, which comprises an injector and the glaucoma drainage implant of any one of the embodiments, and the volume of the glaucoma drainage implant is very small, so that the injector is required to be used for precisely implanting the glaucoma drainage implant, and the structure of the injector is not limited because the protection point of the application is the glaucoma drainage implant.

The beneficial effect of this application is: be different from prior art's condition, the application provides a glaucoma drainage device and glaucoma drainage implant thereof, and the outer wall through keeping away from the central point at the arc pipeline is formed with the barb structure and makes the frictional force increase between glaucoma drainage implant and the schlemm pipe to avoid removing, long-term treatment is effectual.

It should be noted that if directional indications (such as up, down, left, right, front, and back … …) are referred to in the embodiments of the present application, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description of "first", "second", etc. in the embodiments of the present application, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present application.

The above embodiments are merely examples and are not intended to limit the scope of the present disclosure, and all modifications, equivalents, and flow charts using the contents of the specification and drawings of the present disclosure or those directly or indirectly applied to other related technical fields are intended to be included in the scope of the present disclosure.

Claims (6)

1. The utility model provides a glaucoma drainage implant which characterized in that, glaucoma drainage implant includes the arc pipeline of cavity type, the outer wall that the central point was kept away from to the arc pipeline is formed with the barb structure that is used for increasing friction that a plurality of intervals set up, the barb structure do not stand out in the arc pipeline.

2. The glaucoma drainage implant of claim 1 wherein the barb structure is formed by a through hole in the outer wall.

3. The glaucoma drainage implant of claim 2 wherein the through-hole is concave-like in the shape of an inner circular arc transition.

4. The glaucoma drainage implant of claim 1 wherein the arc tube has a first barb unit and a second barb unit, the first barb unit and the second barb unit each comprising a plurality of barb structures, and wherein the barb direction of the barb structure of the first barb unit is opposite to the barb direction of the barb structure of the second barb unit.

5. The glaucoma drainage implant of any one of claims 1 to 4 wherein the geometric centers of two adjacent barb structures are spaced apart by a distance of 0.2 to 0.5 mm.

6. A glaucoma drainage device comprising a glaucoma drainage implant according to any one of claims 1 to 5.

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