An aqueous humor drainage implant structure with improved core fixation strength to prevent hypotension and efficient removal.

Abstract

The present invention provides an aqueous humor drainage implant structure that prevents the hypointraocular pressure phenomenon that may occur after surgery, thereby improving stability, and also prevents blockage of the drainage pathway, thereby improving the persistence of the surgical effect, and enabling efficient removal by improving the fixation force of the core. [Solution] The aqueous humor drainage implant structure 100 includes a tube unit 110 having a hollow HO; a wing unit 120 provided to protrude from the outer surface of the tube unit; and a core unit 130 inserted into the hollow, wherein the core unit has a separation prevention portion 135 provided on at least one of the one exposed end and the other exposed end of the tube unit, which are exposed to the outside of each of the two ends—one end inserted into the sclera and located in the anterior chamber of the eyeball—to prevent separation from the tube unit during minimally invasive glaucoma surgery.

Description

Technical Field

[0001] The present invention relates to an aqueous humor drainage implant structure with improved fixing force of the core for preventing low intraocular pressure and enabling efficient removal. More specifically, it relates to an aqueous humor drainage implant structure for preventing the detachment of the core for preventing early low intraocular pressure in minimally invasive glaucoma surgery and ensuring the integrity of the surgical operation.

Background Art

[0002] Glaucoma is a typical ophthalmic disease that causes optic nerve damage and visual field defects, and is known to be mainly caused by abnormal drainage of aqueous humor.

[0003] The purpose of glaucoma treatment is to effectively lower intraocular pressure, and drug treatment, laser treatment, and surgical methods are used.

[0004] Here, the drug treatment method has problems that when the patient compliance is low, the treatment effect is limited and side effects are likely to occur during long-term use, and the laser treatment method has problems that the effect is limited and repeated treatment may be required in some cases.

[0005] Among surgical methods, trabeculectomy has a problem that there is a high risk of complications such as postoperative infection, scar formation, and excessive intraocular pressure reduction.

[0006] In order to overcome the limitations of the conventional treatment or surgical methods as described above, recently, the minimally invasive glaucoma surgery (MIGS) method has attracted attention as an alternative.

[0007] The minimally invasive glaucoma surgery method is a method of lowering intraocular pressure by inserting a small device to assist the drainage of aqueous humor, and has advantages of a short recovery period and few side effects through a minimally invasive approach.

[0008] Typical examples of the aforementioned miniature devices are microtubes with a diameter of micrometers. One end of the microtube is inserted into the sclera to position it in the anterior chamber of the eyeball, while the other end is positioned in the subconjunctival space to enable stable drainage of aqueous humor.

[0009] In minimally invasive glaucoma surgery using microtubes, it is necessary to prevent initial postoperative hypotension. Conventionally, this has been addressed by reducing the inner diameter of the microtube, as in the XEN Glaucoma Treatment System.

[0010] However, conventional methods of reducing the inner diameter of the microtubules may not adequately lower intraocular pressure after surgery, and there is a risk of obstructive complications occurring due to re-blockage of the drainage pathway.

[0011] Therefore, there is an urgent need for research and development into new microtubes that can maximize aqueous humor drainage efficiency while simultaneously providing stability and durability. [Overview of the project] [Problems that the invention aims to solve]

[0012] The object of the present invention is to provide an aqueous humor drainage implant structure used in minimally invasive glaucoma surgery (MIGS) that prevents hypointraocular pressure (IOP) that may occur after surgery, thereby improving stability, and also prevents blockage of the drainage pathway, thereby improving the sustainability of the surgical effect, by providing an implant structure for preventing hypointraocular pressure that allows for efficient removal. [Means for solving the problem]

[0013] The aqueous humor drainage implant structure according to the present invention, which improves the fixation force of the core for preventing hypointraocular pressure and enables efficient removal, is an implant structure used in minimally invasive glaucoma surgery (MIGS), comprising: a tube unit having a hollow for providing an aqueous humor drainage pathway; a wing unit provided to protrude from the outer surface of the tube unit so as to define the limit of insertion of the tube unit into the sclera; and a core unit inserted into the hollow to prevent hypointraocular pressure that may occur after the minimally invasive glaucoma surgery, wherein the core unit may be characterized by comprising a separation prevention portion provided on at least one of the one exposed end and the other exposed end of the tube unit, which are exposed to the outside of each end—the one end being inserted into the sclera and located in the anterior chamber of the eyeball—and the other end, respectively, so as to prevent separation from the tube unit during the minimally invasive glaucoma surgery.

[0014] The separation prevention portion of the aqueous humor drainage implant structure according to the present invention, which has improved core fixation force for preventing hypointraocular pressure and enables efficient removal, may be characterized by including a needle provided at the other exposed end, which enables suturing to the sclera at the other exposed end.

[0015] The separation prevention portion of the aqueous humor drainage implant structure according to the present invention, which improves the fixing force of the core for preventing hypointraocular pressure and enables efficient removal, is provided at least one of the one exposed end and the other exposed end to be larger than the size of the hollow, thereby limiting the range of movement of the core unit within the hollow.

[0016] The separation prevention portion of the aqueous humor drainage implant structure according to the present invention, which has improved core fixation force for preventing low intraocular pressure and enables efficient removal, is characterized in that, after a predetermined period has elapsed since the minimally invasive glaucoma surgery, it is elastically deformed by an external force so that the core unit can be separated from the tube unit and slide into the hollow space.

[0017] The separation prevention portion of the aqueous humor drainage implant structure for preventing hypointraocular pressure, which has improved core fixation strength and allows for efficient removal, according to the present invention, is characterized in that it is manufactured from a material that decomposes within a predetermined period such that the core unit is separated from the tube unit by external force after a predetermined period has elapsed since the minimally invasive glaucoma surgery.

[0018] The separation prevention portion of the aqueous humor drainage implant structure according to the present invention, which improves the fixing force of the core for preventing hypointraocular pressure and enables efficient removal, is provided at the one exposed end and the other exposed end, and is provided to be longer than the length of the tube unit, thereby having a separation distance.

[0019] The separation prevention portion of the aqueous humor drainage implant structure according to the present invention, which improves the fixing force of the core for preventing low intraocular pressure and enables efficient removal, is provided with the end of the exposed end on one side in a coiled state so as to prevent the core unit from separating from the tube unit during minimally invasive glaucoma surgery, and after a predetermined period has elapsed since the minimally invasive glaucoma surgery, the coiled state is unwound by external force, and the core unit slides into the hollow space.

[0020] The separation prevention portion of the aqueous humor drainage implant structure according to the present invention, which improves the fixing force of the core for preventing low intraocular pressure and enables efficient removal, is provided as the end of the exposed one end that curves toward the exposed one end, and during minimally invasive glaucoma surgery, it catches on the outer surface of the exposed one end, and after a predetermined period has elapsed since the minimally invasive glaucoma surgery, the core unit slides into the hollow as the catch is released by external force.

[0021] The aqueous humor drainage implant structure according to the present invention, which improves the fixing force of the core for preventing hypointraocular pressure and enables efficient removal, may further include a socket unit inserted into the outer surface of the one end such that the terminal, which is positioned on the outer surface of the one end, is pressurized.

[0022] The separation prevention portion of the aqueous humor drainage implant structure for preventing hypointraocular pressure, which has improved core fixation force and allows for efficient removal according to the present invention, may further include a socket unit inserted into the hollow such that the one exposed end is bent toward the one exposed end and inserted into the hollow, and the end positioned in the hollow is pressurized.

[0023] The separation prevention portion of the aqueous humor drainage implant structure according to the present invention, which improves the fixing force of the core for preventing low intraocular pressure and enables efficient removal, is provided as a branched end that branches off from a specific point on the exposed end on one side toward the end on one side, and during minimally invasive glaucoma surgery, it catches on the outer surface of the end on one side, and after a predetermined period has elapsed since the minimally invasive glaucoma surgery, the core unit slides into the hollow as the catch is released by external force. [Effects of the Invention]

[0024] The present invention provides an aqueous humor drainage implant structure with improved core fixation strength for preventing hypointraocular pressure and efficient removal, thereby preventing hypointraocular pressure phenomena that may occur after minimally invasive glaucoma surgery (MIGS) through the core unit and ensuring the stability of glaucoma surgery.

[0025] Furthermore, it enables stable positioning of the core unit during minimally invasive glaucoma surgery (MIGS), providing convenience to the surgeon performing the procedure.

[0026] In addition, by ensuring the hollow size of the aqueous humor movement path and preventing blockage of the drainage path after surgery, the sustainability of the intraocular pressure regulation effect can be improved.

Brief Description of the Drawings

[0027] [Figure 1] The drawings are for explaining the state in which an implant structure for aqueous humor drainage with improved fixing force of the core for preventing low intraocular pressure according to the present invention and capable of efficient removal is inserted into the eyeball by minimally invasive glaucoma surgery. [Figure 2] The drawing illustrates an implant structure for aqueous humor drainage with improved fixing force of the core for preventing low intraocular pressure according to the first embodiment of the present invention and capable of efficient removal. [Figure 3] The drawing illustrates an implant structure for aqueous humor drainage with improved fixing force of the core for preventing low intraocular pressure according to the second embodiment of the present invention and capable of efficient removal. [Figure 4] The drawing illustrates an implant structure for aqueous humor drainage with improved fixing force of the core for preventing low intraocular pressure according to the third embodiment of the present invention and capable of efficient removal. [Figure 5] The drawing illustrates an implant structure for aqueous humor drainage with improved fixing force of the core for preventing low intraocular pressure according to the fourth embodiment of the present invention and capable of efficient removal. [Figure 6] The drawing illustrates an implant structure for aqueous humor drainage with improved fixing force of the core for preventing low intraocular pressure according to the fifth embodiment of the present invention and capable of efficient removal. [Figure 7] The drawing illustrates an implant structure for aqueous humor drainage with improved fixing force of the core for preventing low intraocular pressure according to the sixth embodiment of the present invention and capable of efficient removal. [Figure 8] The drawing illustrates an implant structure for aqueous humor drainage with improved fixing force of the core for preventing low intraocular pressure according to the seventh embodiment of the present invention and capable of efficient removal. [Figure 9] The drawing illustrates an implant structure for aqueous humor drainage with improved fixing force of the core for preventing low intraocular pressure according to the eighth embodiment of the present invention and capable of efficient removal. [Figure 10]This is a diagram illustrating an aqueous humor drainage implant structure according to the ninth embodiment of the present invention, which has improved core fixation force for preventing hypointraocular pressure and allows for efficient removal. [Modes for carrying out the invention]

[0028] In the following, specific embodiments of the present invention will be described in detail with reference to the drawings. However, the concept of the present invention is not limited to the embodiments presented, and those skilled in the art who understand the concept of the present invention will be able to easily propose other regressive inventions or other embodiments that fall within the scope of the present invention by adding, changing, or deleting other components within the same scope of the concept, and these can also be said to fall within the scope of the present invention.

[0029] Furthermore, components with the same function within the same conceptual scope shown in the drawings of each embodiment will be described using the same reference numerals.

[0030] Figure 1 is a diagram illustrating the state in which an aqueous humor drainage implant structure, which has improved core fixation strength for preventing hypointraocular pressure and allows for efficient removal according to the present invention, has been inserted into the eyeball by minimally invasive glaucoma surgery.

[0031] Referring to Figure 1, the aqueous humor drainage implant structure (100, hereinafter referred to as "implant structure") according to the present invention, which has improved core fixation force for preventing hypointraocular pressure and allows for efficient removal, may be a type of microtube having a diameter at the micrometer level used in minimally invasive glaucoma surgery (MIGS) to assist in the drainage of aqueous humor and prevent an increase in intraocular pressure.

[0032] One end of the implant structure 100 can be inserted into the sclera (SC) that is exposed when the scleral flap is opened through an incision and positioned in the anterior chamber (AC), while the other end is positioned on the exposed sclera SC (subconjunctival space), enabling stable drainage of aqueous humor from the anterior chamber to the suprascleral space (subconjunctival space), thereby preventing an excessive increase in intraocular pressure within the eyeball.

[0033] The implant structure 100 may include a tube unit 110 for providing an aqueous humor drainage pathway, a wing unit 120 for defining the insertion limit of the tube unit 110 into the sclera SC, and a core unit 130 for preventing hypointraocular pressure phenomena that may occur after surgery, which will be described in detail below.

[0034] Figure 2 is a diagram illustrating an aqueous humor drainage implant structure according to the first embodiment of the present invention, which has improved core fixation force for preventing hypointraocular pressure and allows for efficient removal.

[0035] Referring to Figure 2, the implant structure 100 according to the first embodiment of the present invention may include a tube unit 110 having a hollow HO for providing an aqueous humor drainage pathway, a wing unit 120 provided to protrude from the outer surface of the tube unit 110 so as to define the insertion limit of the tube unit 110 into the sclera, and a core unit 130 inserted into the hollow to prevent hypointraocular pressure phenomena that may occur after minimally invasive glaucoma surgery.

[0036] The tube unit 110 may be manufactured from a material with a surface smooth enough not to affect the flow of aqueous humor, and may be manufactured from a biocompatible material.

[0037] For example, the tube unit 110 can be manufactured from a silicone-based material, a urethane-based material such as polytetrafluoroethylene (PTFE), polycarbonate (PC), or polyurethane (PU), a compound of a silicone-based material and a polyurethane-based material such as silicone-polyurethane, or a biocompatible metal or alloy.

[0038] Furthermore, the tube unit 110 may be manufactured from any one of the following materials or a combination of one or more of these materials: silicone, polytetrafluoroethylene, polycarbonate, polyurethane, polyethylene, polypropylene, polyimide, polymethyl methacrylate (PMMA), poly(styrene-b-isobutylene-b-sytrene) copolymer, polyethersulfone, gelatin, stainless steel, titanium, and nitinol.

[0039] The tube unit 110 may be manufactured with an inner diameter of 95 μm to 105 μm, an outer diameter of 216.6 μm to 239.4 μm, and a length of 5.7 mm to 6.2 mm, but is not necessarily limited to these dimensions.

[0040] Compared to the conventional XEN Glaucoma Treatment System, the tube unit 110 has a relatively larger inner diameter, which makes it easier to drain aqueous humor to lower intraocular pressure, significantly reducing the possibility of blockage of the aqueous humor drainage pathway and maximizing the sustainability of the surgical effect (prevention of occlusive complications).

[0041] The wing unit 120 may be manufactured from the same biocompatible material as the tube unit 110 and may be provided to protrude at a predetermined angle (for example, a vertical direction) with respect to the longitudinal direction of the tube unit 110.

[0042] The wing unit 120 provides an effect of catching on the sclera membrane during the process in which the tube unit 110, which corresponds to the front end of the wing unit 120, is inserted through the sclera membrane, thereby preventing the tube unit 110, which corresponds to the rear end of the wing unit 120, from being inserted into the sclera membrane.

[0043] The wing unit 120 may be formed by joining or bonding after being inserted into the outer surface of the tube unit 110, but is not necessarily limited to this, and may be formed integrally with the tube unit 110.

[0044] The core unit 130 may be manufactured from a material that can maintain its shape without deformation even when in contact with aqueous humor, and is configured to ensure the positive effect of the relatively larger inner diameter of the tube unit 110 compared to conventional designs. It may be a unit inserted into the hollow to prevent a hypointraocular pressure phenomenon caused by the sudden drainage of a large amount of aqueous humor after minimally invasive glaucoma surgery.

[0045] The core unit 130 may be a non-absorbable surgical suture, and may be made of a material such as nylon or prolene.

[0046] The core unit 130 may be removed after a period of time, for example, 4 to 16 weeks, when it is determined that no further low intraocular pressure problems will occur after the minimally invasive glaucoma surgery.

[0047] On the other hand, the core unit 130 may be provided with a separation prevention portion 135 on at least one of the exposed end and the other exposed end that are exposed to the outside of one end and the other end of the tube unit 110, respectively, so as to prevent separation from the tube unit 110 during minimally invasive glaucoma surgery.

[0048] Here, the one end may be the portion that is inserted into the sclera, which is exposed when the scleral flap is opened through the incision, and is located in the anterior chamber of the eyeball, while the other end may be the portion that is exposed in the exposed scleral sclerosis space (subconjunctival space).

[0049] In the case of a core unit without the separation prevention part 135, the difference between the outer diameter of the core unit and the inner diameter of the tube unit during surgery makes it highly likely that the core unit will separate from the hollow of the tube unit even when a minute external force is applied. In this case, a complicated situation may arise where the doctor has to grasp the core unit with medical tweezers or similar tools and reinsert it into the hollow.

[0050] Therefore, in this invention, by preventing the separation of the core unit 130 from the tube unit 110 during surgery through the separation prevention part 135, the present invention provides convenience to the surgeon performing the surgery and ensures the stability of the surgery.

[0051] Specifically, the separation prevention portion 135 may include a needle 135 provided at the other exposed end, which enables stitching to the stencil membrane at the other exposed end.

[0052] The other exposed end of the core unit 130 can be sutured to the sclera through the needle 135, functioning like a type of suture, thereby preventing the core unit 130 from detaching from the tube unit 110 during minimally invasive glaucoma surgery.

[0053] The minimally invasive glaucoma surgery described above includes multiple steps such as scleral flap incision, insertion of implant structure 100, and suturing. In this process, the separation prevention unit 135 prevents the core unit 130 from separating from the tube unit 110, ensuring a stable surgical procedure and guaranteeing the integrity of the surgery.

[0054] Figure 3 is a diagram illustrating an aqueous humor drainage implant structure according to a second embodiment of the present invention, which has improved core fixation strength for preventing low intraocular pressure and allows for efficient removal. Figure 4 is a diagram illustrating an aqueous humor drainage implant structure according to a third embodiment of the present invention, which has improved core fixation strength for preventing low intraocular pressure and allows for efficient removal.

[0055] Referring to Figures 3 and 4, the implant structures 200 and 300 according to the second and third embodiments of the present invention may include tube units 210 and 310, wing units 220 and 320, and core units 230 and 330, and the core units 230 and 330 may include separation prevention parts 235 and 335.

[0056] The separation prevention portions 235 and 335 are provided at least one of the exposed ends of the core units 230 and 330, one side and the other side, to be larger than the size of the hollow HO of the tube units 210 and 310, thereby limiting the range of movement of the core units 230 and 330 within the hollow HO.

[0057] The limitation of the range of motion of the core units 230 and 330 is equivalent to preventing detachment from the tube units 210 and 310 during minimally invasive glaucoma surgery, thereby ensuring a stable surgical procedure and guaranteeing surgical integrity.

[0058] The separation prevention portions 235 and 335 may be provided at the one exposed end and the other exposed end, and may be provided to be longer than the length of the tube units 210 and 310 to have a separation distance.

[0059] The aforementioned separation distance ensures the fluidity of the core units 230 and 330 relative to the tube units 210 and 310, preventing the hollow HO, which provides the aqueous humor drainage path, from becoming clogged. From the perspective of the surgeon performing the operation, it also makes it easier to control the core units 230 and 330 relative to the tube units 210 and 310.

[0060] The separation prevention section 235 shown in Figure 3 can be elastically deformed by an external force after a predetermined period has elapsed since the minimally invasive glaucoma surgery, allowing the core unit 230 to separate from the tube unit 210 and enabling it to slide into the hollow HO.

[0061] The separation prevention section 335 shown in Figure 4 may be manufactured from a material that decomposes within a predetermined period, such that the core unit 330 is separated from the tube unit 310 by external force after a predetermined period has elapsed since the minimally invasive glaucoma surgery.

[0062] Here, the predetermined period is the period during which it is judged that no further low intraocular pressure problems will occur after minimally invasive glaucoma surgery, for example, 4 to 16 weeks, as explained with reference to Figure 2.

[0063] The material to be decomposed refers to a biodegradable component and may include all known biodegradable components such as polyglycolic acid (PGA), polylactic acid (PPLA), polydioxanone (PDO), copolymers of glycolide and lactide, and catgut.

[0064] Figure 5 is a diagram illustrating an aqueous humor drainage implant structure according to a fourth embodiment of the present invention, which has improved core fixation force for preventing hypointraocular pressure and allows for efficient removal.

[0065] Referring to Figure 5, the implant structure 400 according to the fourth embodiment may include a tube unit 410, a wing unit 420, and a core unit 430, and the core unit 430 may include a separation prevention part 435.

[0066] The separation prevention portion 435 is provided with the end of one exposed end of the core unit 430 wound up, so as to prevent the core unit 430 from separating from the tube unit 410 during minimally invasive glaucoma surgery, and after a predetermined period has elapsed since the minimally invasive glaucoma surgery, the core unit 430 can slide into the hollow HO as the wound state is unraveled by external force.

[0067] In other words, the separation prevention unit 435 can prevent the core unit 430 from separating from the tube unit 410 due to external forces generated during surgery, but after a predetermined period has elapsed, that is, a period during which it is judged that no low intraocular pressure problem will occur after surgery, the core unit 430 can be separated from the tube unit 410 by artificial external force used to remove it, causing the coiled state to unravel.

[0068] Figure 6 is a diagram illustrating an aqueous humor drainage implant structure according to a fifth embodiment of the present invention, which has improved core fixation force for preventing hypointraocular pressure and allows for efficient removal.

[0069] Referring to Figure 6, the implant structure 500 according to the fifth embodiment of the present invention may include a tube unit 510, a wing unit 520, and a core unit 530, and the core unit 530 may include a separation prevention portion 535.

[0070] The separation prevention portion 535 may be provided as the end of the exposed end of the core unit 530, where the exposed end of the core unit 530 bends toward the exposed end of the tube unit 510.

[0071] The separation prevention portion 535 will catch on the outer surface of one end during minimally invasive glaucoma surgery, and after a predetermined period has elapsed since the minimally invasive glaucoma surgery, the core unit 530 will slide into the hollow HO as the catch is released by external force.

[0072] Figure 7 is a diagram illustrating an aqueous humor drainage implant structure according to a sixth embodiment of the present invention, which has improved core fixation force for preventing hypointraocular pressure and allows for efficient removal.

[0073] Referring to Figure 7, the implant structure 600 according to the sixth embodiment of the present invention is identical in configuration and effect to the implant structure 500 according to the fifth embodiment of the present invention, which was described with reference to Figure 6, except for the socket unit 640. Therefore, the description of parts other than the socket unit 640 will be omitted.

[0074] The socket unit 640 may be a cylindrical unit inserted into the outer surface of one end of the tube unit 610 such that the end of the core unit 630, which is positioned on the outer surface of one end of the tube unit 610, is pressurized.

[0075] The socket unit 640 may have an inner diameter large enough to be inserted into the tube unit 610, and may have an outer diameter of 240 μm to 340 μm.

[0076] The socket unit 640 may be manufactured from the same material as the tube unit 610, and compared to the fifth embodiment described with reference to Figure 6, separation of the core unit 630 from the tube unit 610 during minimally invasive glaucoma surgery can be prevented more effectively.

[0077] On the other hand, the magnitude of the external force applied by the socket unit 640 to remove the core unit 630 after the minimally invasive glaucoma surgery may be slightly larger than the magnitude of the external force in the fifth embodiment.

[0078] Figure 8 is a diagram illustrating an aqueous humor drainage implant structure according to the seventh embodiment of the present invention, which has improved core fixation force for preventing hypointraocular pressure and allows for efficient removal.

[0079] Referring to Figure 8, the implant structure 700 according to the seventh embodiment of the present invention may include a tube unit 710, a wing unit 720, a core unit 730, and a socket unit 740, and the core unit 730 may include a separation prevention portion 735.

[0080] The separation prevention portion 735 may be provided as the end of the exposed end of the core unit 730, which is bent toward the one end of the tube unit 710 and inserted into the hollow HO.

[0081] Here, the socket unit 740 may be made of the same material as the tube unit 710 and may be a cylindrical unit inserted into the hollow HO such that the end portion, which is located within the hollow HO, is pressurized.

[0082] The socket unit 740 may have an outer diameter large enough to be inserted into the hollow HO, and an inner diameter within a range that allows aqueous humor to be discharged.

[0083] The socket unit 740 can be configured to more effectively prevent the separation of the core unit 730 from the tube unit 710 during minimally invasive glaucoma surgery by applying pressure to the end, and the magnitude of the external force required to remove the core unit 730 after the minimally invasive glaucoma surgery will be somewhat larger.

[0084] Figure 9 is a diagram illustrating an aqueous humor drainage implant structure according to the eighth embodiment of the present invention, which has improved core fixation force for preventing hypointraocular pressure and allows for efficient removal.

[0085] Referring to Figure 9, the implant structure 800 according to the eighth embodiment of the present invention may include a tube unit 810, a wing unit 820, and a core unit 830, the core unit 830 may include a separation prevention part 835.

[0086] The separation prevention portion 835 may be provided as a branching end that branches off from a specific point on one exposed end of the core unit 830 toward one end of the tube unit 810.

[0087] During minimally invasive glaucoma surgery, the branched end will catch on the outer surface of the one end, and after a predetermined period has elapsed since the minimally invasive glaucoma surgery, the core unit 830 will slide into the hollow HO as the catching state is released by external force.

[0088] Figure 10 is a diagram illustrating an aqueous humor drainage implant structure according to the ninth embodiment of the present invention, which has improved core fixation force for preventing hypointraocular pressure and allows for efficient removal.

[0089] Referring to 10, the implant structure 900 according to the ninth embodiment of the present invention may include a tube unit 910, a wing unit 920, and a core unit 930, the core unit 930 may include a separation prevention portion 935.

[0090] The separation prevention portion 935 may be provided as a micro-protrusion in a predetermined portion located in the hollow HO within one end of the tube unit 910 so as to prevent separation from the tube unit 910 during minimally invasive glaucoma surgery.

[0091] Here, the one end is inserted into the sclera and is located in the anterior chamber of the eyeball, and the micro-projections can generate resistance during surgery to more effectively prevent the separation of the core unit 930 from the tube unit 910.

[0092] Although the configuration and features of the present invention have been described above based on embodiments of the present invention, the present invention is not limited thereto, and it will be obvious to those skilled in the art that the present invention can be modified or transformed in various ways within the spirit and scope of the invention. Therefore, it is made clear that such modifications or transformations fall within the scope of the attached claims. [Explanation of Symbols]

[0093] 100, 200, 300, 400, 500, 600, 700, 800, 900: Aqueous humor drainage implant structure with improved core fixation strength for preventing hypotension and efficient removal. 110, 210, 310, 410, 510, 610, 710, 810, 910: Tube Unit 120, 220, 320, 420, 520, 620, 720, 820, 920: Wing Unit 130, 230, 330, 430, 530, 630, 730, 830, 930: Core unit 135, 235, 335, 435, 535, 635, 735, 835, 935: Separation prevention part 640, 740: Socket Unit HO:Hollow AC: anterior chamber SC: sclera

Claims

1. In an aqueous humor drainage implant structure used in minimally invasive glaucoma surgery (MIGS) to prevent hypointensity, the fixation force of the core is improved, and removal is more efficient. A tubular unit having a hollow section to provide a drainage path for aqueous humor; A wing unit provided so as to protrude from the outer surface of the tube unit so as to define the insertion limit of the tube unit into the sclera; and A core unit inserted into the hollow to prevent the hypointraocular pressure phenomenon that may occur after the minimally invasive glaucoma surgery; The aforementioned core unit is An aqueous humor drainage implant structure that improves the fixation force of the core for preventing hypointraocular pressure and allows for efficient removal, comprising a separation prevention portion provided on at least one of the one exposed end and the other exposed end of the tube unit, which are exposed to the outside of each of the one end—the one end being inserted into the sclera and located in the anterior chamber of the eyeball—and the other end, so as to prevent separation from the tube unit during the minimally invasive glaucoma surgery, wherein the core is fixed in place for preventing hypointraocular pressure and the implant structure allows for efficient removal.

2. The separation prevention unit is An aqueous humor drainage implant structure for preventing hypointraocular pressure, according to claim 1, comprising a needle provided at the other exposed end to enable suturing to the sclera at the other exposed end, wherein the core fixing force is improved and removal is efficient.

3. The separation prevention unit is An aqueous humor drainage implant structure according to claim 1, wherein at least one of the one exposed end and the other exposed end is provided in a size larger than the size of the hollow, thereby limiting the range of movement of the core unit within the hollow, thereby improving the fixing force of the core for preventing hypointraocular pressure and enabling efficient removal.

4. The separation prevention unit is An aqueous humor drainage implant structure according to claim 3, wherein, after a predetermined period has elapsed since the minimally invasive glaucoma surgery, the core unit is elastically deformed by an external force so as to separate from the tube unit and slide into the hollow, thereby improving the fixing force of the core for preventing hypointraocular pressure and enabling efficient removal.

5. The separation prevention unit is An aqueous humor drainage implant structure for preventing hypointraocular pressure, as described in claim 3, which is manufactured from a material that decomposes within a predetermined period such that the core unit is separated from the tube unit by external force after a predetermined period has elapsed since the minimally invasive glaucoma surgery, thereby improving the core's fixing force and enabling efficient removal.

6. The separation prevention unit is An aqueous humor drainage implant structure for preventing hypointraocular pressure, as described in claim 3, which is provided at the one exposed end and the other exposed end, and is provided to be longer than the length of the tube unit to have a separation distance, thereby improving the fixing force of the core for preventing hypointraocular pressure and enabling efficient removal.

7. The separation prevention unit is The implant structure for aqueous humor drainage that improves the fixing force of the core for preventing hypointraocular pressure and allows for efficient removal, wherein the end of the one exposed end is provided in a coiled state so as to prevent the core unit from separating from the tube unit during minimally invasive glaucoma surgery, and after a predetermined period has elapsed since the minimally invasive glaucoma surgery, the coiled state is unraveled by external force and the core unit slides into the hollow, as described in claim 1.

8. The separation prevention unit is An aqueous humor drainage implant structure for preventing hypointraocular pressure, as described in claim 1, wherein the one exposed end is provided as the end of the one exposed end that curves toward the one exposed end, and during minimally invasive glaucoma surgery, it catches on the outer surface of the one exposed end, and after a predetermined period has elapsed since the minimally invasive glaucoma surgery, the core unit slides into the hollow as the catch is released by external force.

9. An aqueous humor drainage implant structure for preventing hypointraocular pressure that has improved core fixation force and allows for efficient removal, further comprising: a socket unit inserted into the outer surface of one end such that the end positioned on the outer surface of one end is pressurized; and the same as claimed in claim 8.

10. The separation prevention unit is The one exposed end is provided as the end of the one exposed end, which is bent toward the one end and inserted into the hollow interior. An aqueous humor drainage implant structure for preventing hypointraocular pressure that has improved core fixation force and allows for efficient removal, further comprising: a socket unit inserted into the hollow such that the end portion disposed within the hollow is pressurized; and the implant structure for preventing hypointraocular pressure that allows for efficient removal, according to any one of claims 1 to 9.

11. The separation prevention unit is An aqueous humor drainage implant structure for preventing hypointraocular pressure, as described in any one of claims 1 to 9, which is provided as a branching end that branches off from a specific point on the exposed end toward the end on the side, and which catches on the outer surface of the end on the side during minimally invasive glaucoma surgery, and after a predetermined period has elapsed since the minimally invasive glaucoma surgery, the core unit slides into the hollow as the catch is released by external force.

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