Ophthalmic implant

Abstract

The application relates to the technical field of medical devices, and provides an ophthalmic implant. The ophthalmic implant comprises a drainage body. The drainage body is provided in a tubular shape, a side wall of the drainage body is provided with a slot, the slot is communicated between the inside of the drainage body and the outside of the drainage body, and the side wall is provided in a spiral shape along the extension direction of the drainage body. The spiral characteristic of the side wall can increase the flow amount of aqueous humor while reducing the speed of the aqueous humor flowing into the ophthalmic implant, thereby increasing the drainage effect and reducing potential damage to the adjacent tissues caused by the flow-related suction.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical devices, in particular to an ophthalmic implant. BACKGROUND

[0002] Glaucoma is an intraocular disease caused by optic nerve damage resulting in visual field defects and loss of visual function, which is the second largest blinding disease in the world after cataract, and has the pathological characteristics of being irreversible, improvable or alleviable but not curable and recoverable. The occurrence and development of glaucoma mainly come from the tolerance of the optic nerve to pressure damage, which is manifested as elevated intraocular pressure. The elevated intraocular pressure mainly comes from the obstruction of the aqueous humor circulation pathway in the eye, which is one of the most important factors causing optic nerve damage in glaucoma and is the only factor that can be effectively controlled so far. Effective control of intraocular pressure depends on the degree of obstruction of the aqueous humor circulation pathway. The traditional aqueous humor pathway accounts for 80-95% of the capacity of all aqueous humor circulation pathways. Aqueous humor is produced from the ciliary body and then enters the posterior, and then passes through the pupil to the anterior chamber, and then enters the Schlemm's canal through the small beam network in the anterior chamber. The collector channel collects the aqueous humor in the Schlemm's canal and flows to the posterior aqueous vein, the intrascleral plexus vein and other systems.

[0003] In the prior art, a drainage implant stent is usually implanted inside the human eye to reconstruct the aqueous humor outflow channel, thereby reducing the intraocular pressure to achieve the treatment purpose. The existing drainage implant stent has a closed dead angle, and residual is easy to occur during the drainage process, so the drainage effect is not good. SUMMARY

[0004] Therefore, the present application mainly solves the technical problem of providing an ophthalmic implant which can increase the drainage effect.

[0005] To solve the above technical problems, one technical solution adopted by the present application is to provide an ophthalmic implant comprising a drainage body. The drainage body is provided in a tubular shape, and the side wall of the drainage body is provided with a slot. The slot communicates the inside of the drainage body with the outside of the drainage body, and the side wall is provided in a spiral shape along the extension direction of the drainage body.

[0006] In some embodiments of the present application, the drainage body is in an arc shape along the extension direction of the drainage body; preferably, the curvature of the drainage body is 60° to 120°.

[0007] In some embodiments of the present application, the drainage body is prepared from a pipe material, and the slot is formed on the side wall of the pipe material by a cutting method.

[0008] In some embodiments of the present application, the drainage body is wound from a strip-shaped sheet material, and the two long edges of the strip-shaped sheet material serve as the two side edges of the slot.

[0009] In some embodiments of the present application, the ophthalmic implant further comprises a slot wall connecting structure connecting the two side edges of the slot.

[0010] In some embodiments of the present application, the slot extends with the same width along the extension direction of the proximal end to the distal end of the drainage body; and / or the side wall extends with the same width along the extension direction of the proximal end to the distal end of the drainage body.

[0011] In some embodiments of the present application, the width of the slot gradually decreases along the extension direction of the proximal end to the distal end of the drainage body; and / or the width of the side wall gradually decreases along the extension direction of the proximal end to the distal end of the drainage body.

[0012] In some embodiments of the present application, the width of the slot is 0.1mm to 0.6mm, and the width of the side wall is 0.1mm to 0.6mm.

[0013] In some embodiments of the present application, the ophthalmic implant further comprises a tissue protection structure arranged at the distal end of the drainage body.

[0014] In some embodiments of the present application, the slot extends to the end of the distal end of the drainage body, and the tissue protection structure is arranged at the end of the side wall of the distal end of the drainage body; preferably, the slot does not extend to the end of the distal end of the drainage body, so that the side wall of the distal end of the drainage body is in a continuous ring structure.

[0015] In some embodiments of the present application, the ophthalmic implant further comprises a delivery device connecting structure arranged at the proximal end of the drainage body for connecting with a delivery device; preferably, the slot does not extend to the end of the proximal end of the drainage body, so that the side wall of the proximal end of the drainage body is in a continuous ring structure, and the delivery device connecting structure comprises a groove arranged on the side wall.

[0016] In some embodiments of the present application, the material of the drainage body comprises one of a memory metal or stainless steel; preferably, the inner and outer surfaces of the drainage body are coated with a heparin hydrogel coating; preferably, the outer diameter of the drainage body is 0.2mm to 0.6mm, and the inner diameter of the drainage body is 0.1mm to 0.5mm.

[0017] The beneficial effects of the present application are: different from the prior art, in the present application, an ophthalmic implant is provided, which comprises a drainage body. The drainage body is arranged in a tubular shape, the side wall of the drainage body is provided with a slot, the slot communicates the inside of the drainage body with the outside of the drainage body, and the side wall is arranged in a spiral shape along the extension direction of the drainage body. The spiral characteristic of the side wall can increase the flow amount of the aqueous humor while reducing the speed of the aqueous humor flowing into the ophthalmic implant, thereby increasing the drainage effect and reducing the potential damage to the adjacent tissue caused by the flow-related suction. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed in the embodiments description. Obviously, the drawings in the following description only show some of the embodiments of the present application, and all other embodiments obtained by those of ordinary skill in the art based on these drawings without creative effort should fall within the scope of the present application.

[0019] Figure 1 is a front view of an ophthalmic implant according to an embodiment of the present application;

[0020] Figure 2 is a top view of an ophthalmic implant according to an embodiment of the present application;

[0021] Figure 3 is a right view of an ophthalmic implant according to an embodiment of the present application;

[0022] Figure 4 is a sectional view of an ophthalmic implant according to an embodiment of the present application;

[0023] Figure 5 is another view of an ophthalmic implant according to an embodiment of the present application;

[0024] Figure 6 is a partial enlarged view of A;

[0025] Figure 7 is a schematic view of a structure of an ophthalmic implant according to an embodiment of the present application using a connecting structure;

[0026] Figure 8 is a front view of an ophthalmic implant according to another embodiment of the present application;

[0027] Figure 9 is a top view of an ophthalmic implant according to another embodiment of the present application. DETAILED DESCRIPTION

[0028] In order to make the above objectives, features and advantages of the present application more apparent, the specific embodiments of the present application will be described in detail below with the drawings. It should be understood that the specific embodiments described herein are only used to explain the present application and not to limit the present application. In addition, it should be noted that only the parts related to the present application are shown in the drawings for the convenience of description. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of the present application.

[0029] In a healthy eye, when the epithelial cells of the ciliary body secrete new aqueous humor, the aqueous humor flows out of the anterior chamber of the eye, flows into the Schlemm's canal through the trabecular meshwork. Excess aqueous humor enters the venous blood flow from the Schlemm's canal and is carried out of the eye with the venous blood flow.

[0030] When the natural drainage system of the eye does not work properly, the pressure within the eye begins to rise, and long-term high pressure within the eye can lead to loss of visual field, up to blindness. Therefore, an ophthalmic implant can be inserted into the Schlemm's canal, the trabecular meshwork tissue and the anterior chamber of the eye, which helps the aqueous humor to flow out of the anterior chamber of the eye, thereby relieving the high intraocular pressure. Based on this, the present application provides an ophthalmic implant.

[0031] Referring to Figures 1 to 4 , Figure 1 is a front view of an ophthalmic implant according to an embodiment of the present application; Figure 2 is a top view of an ophthalmic implant according to an embodiment of the present application; Figure 3 is a right view of an ophthalmic implant according to an embodiment of the present application; Figure 4 is a sectional view of an ophthalmic implant according to an embodiment of the present application.

[0032] The ophthalmic implant comprises a drainage body 100. The drainage body 100 is provided in a tubular shape, and the side wall 20 of the drainage body 100 is provided with a slot 30, which communicates the inside of the drainage body 100 with the outside of the drainage body 100, and the side wall 20 is provided in a spiral shape along the extension direction of the drainage body 100.

[0033] Specifically, as Figure 1 , the drainage body 100 can be approximately cylindrical in shape along its entire length, extending in a spiral form in the circumferential direction of the cylinder. In other words, the drainage body 100 is a hollow structure, and in the axial direction of the drainage body 100, the drainage body 100 is provided in a spiral shape.

[0034] When the drainage body 100 is placed in the Schlemm's canal in the eye, the aqueous humor can enter the venous blood flow through the slot 30 of the side wall 20 of the drainage body 100 from any direction, and the spiral characteristic of the side wall 20 can increase the amount of aqueous humor flow while reducing the speed of the aqueous humor flowing into the ophthalmic implant, thereby increasing the drainage effect and reducing potential damage to adjacent tissues caused by flow-related suction.

[0035] In an embodiment, referring to Figure 1 , in the axial direction of the drainage body 100, the drainage body 100 is arc-shaped.

[0036] Specifically, the drainage body 100 is provided in an arc shape in order to simulate the anatomy of the human eye, especially the anatomy of the Schlemm's canal into which it is transplanted, and the drainage body 100 can better integrate into the Schlemm's canal in the eye, reducing the foreign body sensation in the eye.

[0037] When the drainage body 100 is arc-shaped and soft enough, it can form a shape matching the Schlemm's canal after being implanted in the eye.

[0038] In an embodiment, the arc-shaped drainage body 100 can be made by laser cutting into a spiral shape, and then heat curing to form the required arc shape.

[0039] In an embodiment, the arc of the drainage body 100 is 60° to 120°.

[0040] Specifically, the included angle formed by the two ends of the drainage body 100 and the center of the circle is the arc of the drainage body 100, the length of the drainage body 100 corresponds to the arc of the drainage body 100, the longer the length of the drainage body 100, the greater the arc, and the shorter the length of the drainage body 100, the smaller the arc. When implanted, the drainage body 100 can form an arc of 60°, 70°, 80°, 90°, 100°, 110°, 120°, etc. around the circle formed by the Schlemm's canal, which is not limited herein, and in actual use, drainage bodies 100 with different arcs can be made according to actual needs.

[0041] In an embodiment, the material of the drainage body 100 includes one of a memory metal or stainless steel.

[0042] Specifically, the material used for the ophthalmic implant should have good biocompatibility. It can be a metal material such as memory metal, stainless steel, tantalum, gold, titanium, etc., or a non-metal material, which is not limited herein, and in actual use, it can be selected according to actual needs.

[0043] The drainage body 100 made of stainless steel is curved when made, has a certain arc, and can be directly implanted into the Schlemm's canal in the eye.

[0044] The drainage body 100 made of memory metal is in a vertical contracted state during daily storage and transportation, and can be in a vertical shape before being implanted into the eye. When implanted into the eye to the desired position, it restores to a curved shape for use based on the influence of body temperature.

[0045] In an embodiment, please refer to Figure 5 , Figure 5 is another view of the ophthalmic implant of an embodiment of the present application. The drainage body 100 is provided in a tubular shape, the side wall 20 of the drainage body 100 is provided with a slot 30, the slot 30 communicates the inside of the drainage body 100 with the outside of the drainage body 100, and the side wall 20 is provided in a spiral shape along the extension direction of the drainage body 100. In this embodiment, the slot 30 is open, and there is no connecting structure 40 between the slot walls. When the ophthalmic implant is implanted into the Schlemm's canal, there can be a possibility of rotating in one direction, and the spiral-shaped drainage body 100 can make the aqueous humor flow directly out of the slot 30, increasing the drainage effect.

[0046] In an embodiment, the drainage body 100 is prepared from a tube, and the slits 30 are formed on the side wall of the tube by cutting. The drainage stent 100 can be a side wall 20 formed by cutting in a 360° spiral. The part of the tube remaining after cutting is the side wall 20, and the part of the tube cut away is the slit 30.

[0047] Specifically, the drainage body 100 of the tube can be processed by laser cutting. A laser cutting head emits a laser beam to the tube, and a predetermined cutting surface is set to control the laser cutting head to move in a horizontal transverse direction, a horizontal longitudinal direction, and / or a vertical direction and / or to swing around a horizontal axis parallel to the horizontal transverse direction, while the value axis of the drainage body 100 extending in the vertical direction is controlled to rotate 360°, so that the drainage body 100 forms a continuous and uniformly distributed 360° spiral side wall 20.

[0048] In an embodiment, the drainage body 100 is prepared by winding a strip-shaped sheet, and the two long edges of the strip-shaped sheet serve as the two side edges of the slits 30.

[0049] Specifically, in the preparation of the drainage body 100, the strip-shaped sheet can be softened first, and then rotated in one direction to form a spiral side wall 20, or rotated around a cylinder with a suitable diameter to form a spiral side wall 20.

[0050] In an embodiment, please refer to Figure 7 , Figure 7 is a structural schematic diagram of an ophthalmic implant using the connecting structure 40 according to an embodiment of the present application. The drainage body 100 is in a tubular shape, the side wall 20 of the drainage body 100 is provided with the slits 30, the slits 30 communicate the inside of the drainage body 100 with the outside of the drainage body 100, and the side wall 20 is arranged in a spiral shape along the extension direction of the drainage body 100. In this embodiment, the ophthalmic implant further comprises a slit wall connecting structure 40 connecting the two side edges of the slits 30. By arranging the connecting structure 40 between the side wall 20 and the slits 30, the spiral shape of the drainage body 100 can be maintained, the shape of the drainage body 100 after the ophthalmic implant is implanted into the eye can be prevented from changing, and the stability of the drainage body 100 can be ensured.

[0051] In this embodiment, the connecting structure 40 is integral with the side wall 20.

[0052] In an embodiment, the drainage body 100 is prepared from a tube, and the slits 30 are formed on the side wall 20 of the tube by cutting. When the slits 30 are formed by cutting, the connecting structure 40 is formed.

[0053] In medicine, with the trunk as a reference, the end close to the trunk is the proximal end, and the end far from the trunk is the distal end.

[0054] In an embodiment, please refer toFigures 2-4 In one embodiment, the width of the slits 30 and the width of the side walls 20 are the same along the extension of the drainage body 100 from the proximal end to the distal end. In other words, the width of the slits 30 and the width of the side walls 20 are the same throughout the drainage body 100. This ensures a uniform aqueous humor flow rate. In another embodiment, the width of the slits 30 gradually decreases along the extension of the drainage body 100 from the proximal end to the distal end; and / or the width of the side walls 20 gradually decreases along the extension of the drainage body 100 from the proximal end to the distal end. Specifically, the width of the slits 30 and the width of the side walls 20 are larger at the proximal end of the drainage body 100, which allows the aqueous humor to flow out of the anterior chamber of the eye into the Schlemm's canal at a faster rate; and the width of the slits 30 and the width of the side walls 20 are smaller at the distal end of the drainage body 100, which allows the aqueous humor to flow out of the Schlemm's canal into the venous blood flow at a slower rate.

[0055] In one embodiment, referring to FIG. 1, the width of the slits 30 is 0.1 mm to 0.6 mm, and the width of the side walls 20 is 0.1 mm to 0.6 mm. Figures 1 to 7 In one embodiment, referring to FIG. 1, the width of the slits 30 is 0.1 mm to 0.6 mm, and the width of the side walls 20 is 0.1 mm to 0.6 mm.

[0056] Figure 5 In one embodiment, referring to FIG. 1, the width of the slits 30 is 0.1 mm to 0.6 mm, and the width of the side walls 20 is 0.1 mm to 0.6 mm. Figure 6 Figure 6 is a partial enlarged view of A. The slits 30 extend to the end of the distal end of the drainage body 100. The end of the distal end of the drainage body 100 is also the end of the side walls 20, and there is a pointed end 21. When the ophthalmic implant is inserted into the eye, the pointed end 21 can scratch the Schlemm's canal.

[0057] Further, in one embodiment, the ophthalmic implant further comprises a tissue protection structure (not shown in the figure) disposed at the distal end of the drainage body 100. The tissue protection structure disposed at the distal end of the drainage body 100 can prevent the pointed end 21 from scratching the Schlemm's canal and prevent damage to the eye.

[0058] In one embodiment, a prepared liquid is directly sprayed on the distal end of the drainage body 100 to form a coating on the distal end of the drainage body 100, thereby forming a tissue protection structure.

[0059] In one embodiment, the tissue protection structure is a passivation treatment of the drainage body 100, which can be to round the pointed end 21; or the drainage body 100 can be cleaned with passivation water to passivate it.

[0060] In one embodiment, the tissue protection structure can also be provided on the entire ophthalmic implant.

[0061] In one embodiment, referring to FIG. 1, the width of the slits 30 is 0.1 mm to 0.6 mm, and the width of the side walls 20 is 0.1 mm to 0.6 mm. Figure 8 Figure 9 , Figure 8 is a front view of an ophthalmic implant of another embodiment of the present application,​​​Figure 9 is a top view of an ophthalmic implant according to another embodiment of the present application. The slot 30 does not extend to the end of the distal end of the drainage body 100, so that the sidewall 20 of the distal end of the drainage body 100 is a continuous ring structure 22. Specifically, when the tubular drainage body 100 is cut, the distal end of the drainage body 100 is not cut, so that it remains a ring structure 22; or when the strip-shaped material is wound, the strip-shaped material is wound into a ring structure 22 at the end of the winding, so that the ophthalmic implant does not harm the eye.

[0062] In an embodiment, referring to Figure 1 and Figure 5 , the ophthalmic implant further comprises a delivery device connection structure 10 provided at the proximal end of the drainage body 100 for connecting with a delivery device (not shown in the figure). The slot 30 does not extend to the end of the proximal end of the drainage body 100, so that the sidewall 20 of the proximal end of the drainage body 100 is a continuous ring structure, and the delivery device connection structure 10 comprises a groove provided on the sidewall 20.

[0063] Specifically, the delivery device connection structure 10 is provided at one side of the proximal end of the drainage body 100, and the delivery device connection structure 10 is an open groove. After the drainage body 100 is implanted into the Schlemm's canal, the aqueous humor can also enter the drainage body 100 through the delivery device connection structure 10, and then enter the sidewall 20 of the drainage body 100. The ophthalmic implant can be used in combination with a method for treating diseases and / or disorders of the human eye (such as glaucoma). The ophthalmic implant is connected with the delivery device connection structure 10 of the drainage body 100, and the connection can be a snap connection. The delivery device is used to deliver the ophthalmic implant into the Schlemm's canal of the eye until the ophthalmic implant reaches the desired position, and then the delivery device is detached from the ophthalmic implant. When the ophthalmic implant in the eye is damaged or cannot be used continuously, the drainage body 100 can be taken out through the delivery device. By providing the delivery device connection structure 10, the use and removal of the ophthalmic implant can be facilitated.

[0064] The delivery device connects the ophthalmic implant through the delivery device connection structure 10, so that the drainage body 100 passes through the incision of the cornea and enters the eye. One hand controls the propulsion mechanism of the delivery device to make the drainage body 100 advance into the Schlemm's canal, while the other hand holds the goniolens, so that the implantation of the ophthalmic implant into the Schlemm's canal is visualized. When the ophthalmic implant completely enters the Schlemm's canal, the delivery device is disconnected from the ophthalmic implant.

[0065] The delivery device connection structure 10 can be an open groove provided at the proximal end of the drainage body 100, and the number of open grooves can be set according to actual conditions. In the illustrated embodiment, the number of open grooves is two. In other embodiments, the number of open grooves is one.

[0066] In an embodiment, the outer diameter of the drainage body 100 is 0.2mm to 0.6mm, and the inner diameter of the drainage body 100 is 0.1mm to 0.5mm.

[0067] Specifically, the drainage body 100 is located in and supports the Schlemm's canal, and the tube wall thickness of the drainage body 100 can be 0.1mm, that is, the outer diameter of the drainage body 100 is 0.4mm and the inner diameter is 0.3mm. The outer diameter of the drainage body 100 can be in the range of 0.2mm to 0.6mm, and the inner diameter of the drainage body 100 can be in the range of 0.1mm to 0.5mm, which can be specifically set according to the use requirement in actual use, which is not limited herein.

[0068] In an embodiment, the inner and outer surfaces of the drainage body 100 are coated with a heparin hydrogel coating.

[0069] Specifically, the entire drainage body 100 is coated with a heparin hydrogel coating, which can make the drainage body 100 have better biocompatibility when implanted in the eye, and can avoid early and late thrombosis, and can also avoid long-term contact with tissues after implantation, which can guide the growth of tissues to the body, reduce the fibrosis and scarring of the surrounding tissues. Considering the stability of the surface bonding of the hydrogel coating, a heparinized star-shaped polyethylene glycol hydrogel coating can be used.

[0070] In an embodiment, one or more therapeutic drugs can be coated on the inner and outer surfaces of the drainage body 100 when the ophthalmic implant is used, and the therapeutic drugs can be drugs for treating glaucoma, such as prostaglandin drugs, carbonic anhydrase drugs.

[0071] Operation method of the ophthalmic implant for treating glaucoma in an embodiment:

[0072] The drainage body 100 is provided in a predetermined resting shape that mimics the anatomy of the human eye, particularly the anatomy of the Schlemm's canal into which it is to be implanted. The surgeon makes an incision in the cornea of the eye using a surgical knife, and then advances the drainage body 100 into the Schlemm's canal of the human eye using a delivery device. The proximal inlet portion of the drainage body 100 is positioned in the anterior chamber of the eye, the middle portion of the drainage body 100 is positioned in the Schlemm's canal, and the distal portion of the drainage body 100 is positioned in the anterior chamber of the eye. When the ophthalmic implant is in place in the eye, the ophthalmic implant will support the trabecular meshwork tissue and the Schlemm's canal tissue, and will provide improved communication between the anterior chamber and the Schlemm's canal (via the trabecular meshwork tissue) and between the pockets or compartments along the Schlemm's canal. The aqueous humor can flow through the void portion 30 of the drainage body 100 out of the Schlemm's canal, into the venous blood flow, and out of the eye with the venous blood flow.

[0073] The above merely describes the embodiments of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation, or direct or indirect application in other related technical fields, which is made according to the content of the present application specification and drawings, is also included in the patent protection scope of the present application.

Claims

1. An ophthalmic implant, characterized in that, The ophthalmic implant comprises: a drainage fluid, which is provided in a tubular shape, a side wall of the drainage fluid is provided with a slot, the slot communicates the inside of the drainage fluid with the outside of the drainage fluid, the side wall is provided in a spiral shape along the extension direction of the drainage fluid; the ophthalmic implant further comprises a slot wall connecting structure connecting the two side edges of the slot.

2. The ophthalmic implant of claim 1, wherein, The drainage fluid is arc-shaped along the extension direction of the drainage fluid.

3. The ophthalmic implant of claim 2, wherein, The arc of the drainage fluid is 60° to 120°.

4. The ophthalmic implant of claim 1, wherein, The drainage fluid is prepared from a pipe material, and the slot is formed on the side wall of the pipe material by a cutting method.

5. The ophthalmic implant of claim 1, wherein, The drainage fluid is wound from a strip-shaped sheet material, and the two long edges of the strip-shaped sheet material serve as the two side edges of the slot.

6. The ophthalmic implant according to claim 1, wherein: the slot extends with the same width along the extension direction of the drainage fluid from the proximal end to the distal end; and / or the side wall extends with the same width along the extension direction of the drainage fluid from the proximal end to the distal end.

7. The ophthalmic implant according to claim 1, wherein: the width of the slot gradually decreases along the extension direction of the drainage fluid from the proximal end to the distal end; and / or the width of the side wall gradually decreases along the extension direction of the drainage fluid from the proximal end to the distal end. The width of the slot is 0.1 mm to 0.6 mm, and the width of the side wall is 0.1 mm to 0.6 mm.

8. The ophthalmic implant of claim 6 or 7, wherein, The ophthalmic implant further comprises a tissue protection structure provided at the distal end of the drainage fluid.

9. The ophthalmic implant of claim 1, wherein, The slot extends to the end of the distal end of the drainage fluid, and the tissue protection structure is provided at the end of the side wall of the distal end of the drainage fluid.

10. The ophthalmic implant of claim 9, wherein, The slot does not extend to the end of the distal end of the drainage fluid, so that the side wall of the distal end of the drainage fluid is a continuous ring structure.

11. The ophthalmic implant of claim 1, wherein, The ophthalmic implant further comprises a delivery device connecting structure provided at the proximal end of the drainage fluid for connecting with a delivery device.

12. The ophthalmic implant of claim 1, wherein, The slot does not extend to the end of the proximal end of the drainage fluid, so that the side wall of the proximal end of the drainage fluid is a continuous ring structure, and the delivery device connecting structure comprises a groove provided on the side wall.

13. The ophthalmic implant of claim 12, wherein, The material of the drainage fluid comprises one of a memory metal or stainless steel.

14. The ophthalmic implant of claim 1, wherein, The inner and outer surfaces of the drainage fluid are coated with a heparin hydrogel coating.

15. The ophthalmic implant of claim 14, wherein, The outer diameter of the drainage fluid is 0.2 mm to 0.6 mm, and the inner diameter of the drainage fluid is 0.1 mm to 0.5 mm.

16. The ophthalmic implant of claim 14, wherein, ​

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