Ophthalmic minimally invasive drainage device

Abstract

The application provides an ophthalmic minimally invasive drainage device, and relates to the technical field of medical devices.The device comprises a drainage tube, a dispersion tube and a release tube fixed as a whole, the longitudinal section shape of the drainage tube, the dispersion tube and the release tube is flat, the left end of the drainage tube is provided with a liquid inlet assembly for liquid inlet; the upper part of the drainage tube is provided with a fixing assembly for limiting surgical thread; the dispersion tube is fixedly connected with a fixing lug; the release tube is in the shape of a circular arc, the right end of the release tube is provided with a pressure stabilizing membrane, and a pressure stabilizing port is arranged between the pressure stabilizing membrane and the release tube.The fixing assembly can limit surgical thread, ensure the stability of the drainage tube, improve the operation quality and reduce operation complications; the pressure stabilizing membrane and the pressure stabilizing port can change the size of the pressure stabilizing port by using the pressure deformation characteristics of the pressure stabilizing membrane, thereby ensuring the stability of the intraocular fluid pressure in the anterior chamber and being beneficial to the treatment of glaucoma.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to a minimally invasive ophthalmic drainage device. Background Technology

[0002] Glaucoma is the leading cause of irreversible blindness worldwide and in my country. Pathologically high intraocular pressure leads to optic nerve damage, visual field defects, and decreased vision. Without timely and effective treatment, patients will eventually go blind. Common treatments for glaucoma include topical medications, systemic medications, various laser therapies, and other invasive surgeries. These methods aim to lower intraocular pressure by better balancing the inflow and outflow of aqueous humor: increasing aqueous humor outflow and / or reducing aqueous humor production. Clinically, many patients do not respond well to or have insufficient response to drug or laser treatments, making surgical treatment unavoidable. Drainage devices are required during minimally invasive ophthalmic surgery.

[0003] In related technologies, such as the aqueous humor drainage implant with publication number CN103190983A, a T-shaped drainage tube and a drainage disc are connected together. The inlet horizontal tube of the T-shaped drainage tube has the same radius of curvature as the limbus, and the contact surface with the aqueous humor has a drainage groove.

[0004] During the surgery, the drainage implant needs to be initially fixed with surgical sutures. However, the surface of the drainage tube is smooth, which makes it difficult to fix and makes it easy for the drainage tube to shift, which is not conducive to the smooth outflow of aqueous humor. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a minimally invasive ophthalmic drainage device that solves the problem of poor fixation of drainage tubes.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a minimally invasive ophthalmic drainage device, comprising a drainage tube, a dispersion tube, and a release tube fixed together, wherein the longitudinal cross-sectional shape of the drainage tube, the dispersion tube, and the release tube is flat, and the left end of the drainage tube is provided with a liquid inlet assembly for liquid inlet; the upper part of the drainage tube is provided with a fixing assembly for limiting surgical sutures;

[0007] The dispersion tube is fixedly connected to a fixing lug; the release tube is arc-shaped, and a pressure-stabilizing membrane is provided at the right end of the release tube. A pressure-stabilizing port is provided between the pressure-stabilizing membrane and the release tube. The pressure-stabilizing membrane is a 0.02-0.05 mm thick biological membrane. The fixing components can limit the surgical suture, ensure the stability of the drainage tube, improve surgical quality, and reduce surgical complications. By utilizing the pressure-stabilizing membrane and port, and taking advantage of the pressure-deformation property of the membrane, the size of the port can be changed to ensure stable pressure of the aqueous humor in the anterior chamber, which is beneficial for glaucoma treatment.

[0008] Preferably, the fixing component includes a fixing side groove one and a fixing side groove two disposed on the upper part of the drainage tube. The fixing side groove one and the fixing side groove two together form an X shape, and a limiting member is fixedly connected at the intersection of the fixing side groove one and the fixing side groove two.

[0009] Preferably, the limiting component includes a connecting post fixedly installed on the drainage tube, with a limiting ball evenly fixedly connected to the upper circumference of the connecting post, and a contact slope provided at the lower part of the limiting ball.

[0010] Preferably, the fixing ear is provided with a fixing hole, and the fixing hole is provided with a uniformly distributed embedding groove on the inner circumference, and the cross-sectional shape of the embedding groove is V-shaped.

[0011] Preferably, the lower surface of the release tube is provided with an absorption hole, and the side surface of the release tube is provided with a release hole.

[0012] Preferably, the shape of the absorption hole is any one of circular, elliptical, or slotted.

[0013] Preferably, there are four limiting balls, the lower surface of each limiting ball is provided with a groove, and a connecting angle is provided at the connection between the first fixed side groove and the second fixed side groove. The positions of the limiting balls and the connecting angles correspond to each other.

[0014] Preferably, the liquid inlet assembly includes a drainage slope, a liquid inlet, and a side liquid inlet located at the left end of the drainage tube.

[0015] This invention provides a minimally invasive ophthalmic drainage device. It has the following beneficial effects:

[0016] 1. The present invention, through the setting of a fixing component, can restrict the surgical line, ensure the stability of the drainage tube, improve the quality of surgery, and reduce surgical complications.

[0017] 2. This invention, through the setting of a pressure-stabilizing membrane and a pressure-stabilizing port, utilizes the characteristic of the pressure-stabilizing membrane to deform under pressure, thereby changing the size of the pressure-stabilizing port and ensuring the stability of the aqueous humor pressure in the anterior chamber, which is beneficial for the treatment of glaucoma.

[0018] 3. The present invention, through the design of the drainage tube, dispersion tube and release tube, facilitates handheld clamping operations, makes insertion easier and reduces the difficulty of surgery. Attached Figure Description

[0019] Figure 1 This is a perspective view of the entire invention;

[0020] Figure 2 This is a three-dimensional view of the entire invention from the perspective of the present invention;

[0021] Figure 3 This is a perspective view of the fixing ear of the present invention;

[0022] Figure 4 This is a perspective view of the limiting element of the present invention;

[0023] Figure 5 This is a top view of the entire invention;

[0024] Figure 6 This is a front view of the entire invention;

[0025] Figure 7 for Figure 5 Enlarged view of point A in the middle;

[0026] Figure 8 This is a perspective view of the limiting element of the present invention from a lower angle.

[0027] Among them, 1. Drainage tube; 2. Drainage slope; 3. Liquid inlet; 4. Side liquid outlet; 5. Fixed side groove one; 6. Fixed side groove two; 7. Restricting component; 8. Dispersing tube; 9. Fixing ear; 10. Release tube; 11. Release hole; 12. Pressure stabilizing membrane; 13. Absorption hole; 14. Pressure stabilizing port; 15. Connecting angle; 901. Fixing hole; 902. Embedding groove; 701. Restricting ball; 702. Connecting column; 703. Contact slope; 704. Groove. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] like Figures 1-8 As shown, this embodiment of the invention provides a minimally invasive ophthalmic drainage device, including a drainage tube 1, a dispersion tube 8, and a release tube 10 fixed as one unit. The longitudinal cross-sectional shape of the drainage tube 1, the dispersion tube 8, and the release tube 10 is flat. The left end of the drainage tube 1 is provided with a liquid inlet assembly for liquid inlet. The liquid inlet assembly includes a drainage slope 2, a liquid inlet 3, and a side liquid inlet 4 located at the left end of the drainage tube 1.

[0030] refer to Figure 1 The drainage tube 1 is inserted into the anterior chamber parallel to the pupil, and the aqueous humor in the anterior chamber can enter from the inlet 3 and the side inlet 4; the drainage slope 2 is used to guide the insertion of the drainage tube 1, making the insertion process smoother; the flat drainage tube 1, the dispersion tube 8 and the release tube 10 can provide a wider drainage channel, making it easier to insert into the anterior chamber as a whole; the length of the orthographic projection of the drainage slope 2 is 0.1-0.2 mm, ensuring that the aqueous humor can enter the drainage tube 1.

[0031] The upper part of the drainage tube 1 is provided with a fixing component for limiting the surgical line; the fixing component includes a fixing side groove 5 and a fixing side groove 6 located on the upper part of the drainage tube 1. The fixing side groove 5 and the fixing side groove 6 form an X shape. A limiting member 7 is fixedly connected at the intersection of the fixing side groove 5 and the fixing side groove 6.

[0032] refer to Figure 1 , Figure 5 When the surgical suture is fixed, it is sutured in an X-shape. Therefore, the surgical suture can be placed in the fixing groove 5 and fixing groove 6. The width of fixing groove 5 and fixing groove 6 is larger than the diameter of the surgical suture, so the surgical suture can be easily placed in it. Then it is restricted by the limiting member 7, which provides a certain limiting force for the drainage tube 1 as a whole. The surgical suture is not easy to slide relative to the drainage tube 1. Therefore, the operation is simpler, there are fewer postoperative complications, and less irritation to the cornea and choroid.

[0033] refer to Figure 4 , Figure 7 , Figure 8 The limiting component 7 includes a connecting post 702 fixedly installed on the drainage tube 1. A limiting ball 701 is evenly fixedly connected to the upper circumference of the connecting post 702. A contact slope 703 is provided at the lower part of the limiting ball 701. There are four limiting balls 701. A groove 704 is provided on the lower surface of the limiting ball 701. A connecting angle 15 is provided at the connection between the first fixing groove 5 and the second fixing groove 6. The positions of the limiting ball 701 and the connecting angle 15 correspond to each other.

[0034] When the surgical suture is placed in the first fixed side groove 5 and the second fixed side groove 6, the surgical suture will slide into the groove 704 on the lower surface of the limiting ball 701 under the action of the contact inclined surface 703. The groove 704 of the limiting ball 701 can limit the position of the surgical suture, making it difficult for the surgical suture to slip.

[0035] refer to Figure 1 , Figure 3 , Figure 5 A fixing ear 9 is fixedly connected to the dispersion tube 8. The fixing ear 9 is provided with a fixing hole 901. An embedding groove 902 is uniformly provided on the inner circumference of the fixing hole 901. The cross-sectional shape of the embedding groove 902 is V-shaped.

[0036] The dispersion tube 8 is flatter and thinner than the drainage tube 1. When the dispersion tube 8 and the release tube 10 are fixed with surgical sutures, the surgical sutures can pass through the fixing hole 901. When the surgical sutures are tightened, they can slide into the embedding groove 902. The embedding groove 902 can be used to hold the surgical sutures in place, which helps to ensure the fixation of the dispersion tube 8 and the release tube 10.

[0037] refer to Figure 1 , Figure 2The release tube 10 is arc-shaped, and a pressure stabilizing membrane 12 is provided at the right end of the release tube 10. A pressure stabilizing port 14 is provided between the pressure stabilizing membrane 12 and the release tube 10. The pressure stabilizing membrane 12 is a 0.02-0.05 mm biofilm. An absorption hole 13 is provided on the lower surface of the release tube 10. The shape of the absorption hole 13 can be any one of circular, elliptical, or slotted. A release hole 11 is provided on the side of the release tube 10.

[0038] The release tube 10 is arc-shaped and can fit the surface of the eyeball. Aqueous humor can flow out from the release hole 11, absorption hole 13, and pressure stabilizing port 14 and can be absorbed by surrounding tissues to ensure the stability of the anterior aqueous humor pressure.

[0039] Secondly, the pressure-stabilizing membrane 12 can be made of various membranes, such as amnion or pericardium, which have a certain deformation capacity and can expand and deform when the aqueous humor pressure is too high. The pressure-stabilizing port 14 increases due to the deformation of the pressure-stabilizing membrane 12, thereby increasing the outflow of aqueous humor and ensuring that the aqueous humor is in a dynamic equilibrium state. The release hole 11 and the absorption hole 13 can be round holes with a diameter between 0.2 and 0.5 mm, ensuring that the aqueous humor can be absorbed by the surrounding tissues without excessive release of aqueous humor.

[0040] Working principle: Drainage tube 1 is inserted into the anterior chamber parallel to the pupil. Aqueous humor in the anterior chamber can enter through inlet 3 and side inlet 4. The flat drainage tube 1, dispersion tube 8 and release tube 10 can provide a wider drainage channel, making it easier to insert the whole tube into the anterior chamber.

[0041] When the surgical suture is fixed, it is sutured in an X shape. Therefore, the surgical suture can be placed in the fixing side groove 5 and the fixing side groove 6. Under the action of the contact inclined surface 703, the surgical suture will slide into the groove 704 on the lower surface of the limiting ball 701. The groove 704 of the limiting ball 701 can restrict the position of the surgical suture, making it difficult for the surgical suture to slip. It provides a certain limiting force for the drainage tube 1 as a whole, and the surgical suture is not easy to slide relative to the drainage tube 1.

[0042] The dispersion tube 8 is flatter and thinner than the drainage tube 1. When the dispersion tube 8 and the release tube 10 are fixed with surgical sutures, the surgical sutures can pass through the fixing hole 901. When the surgical sutures are tightened, the surgical sutures can slide into the embedding groove 902. The embedding groove 902 can be used to hold the surgical sutures in place, which makes it easier to fix the dispersion tube 8 and the release tube 10.

[0043] The release tube 10 is arc-shaped and can fit the surface of the eyeball. Aqueous humor can flow out from the release hole 11, absorption hole 13, and pressure stabilizing port 14 and can be absorbed by surrounding tissues to ensure the stability of the anterior aqueous humor pressure.

[0044] The pressure-stabilizing membrane 12 has a certain deformation capacity and can expand and deform when the aqueous humor pressure is too high. The pressure-stabilizing port 14 increases due to the deformation of the pressure-stabilizing membrane 12, thereby increasing the outflow of aqueous humor, ensuring that the aqueous humor is in a dynamic equilibrium state, ensuring that the aqueous humor can be absorbed by the surrounding tissues, and preventing excessive release of aqueous humor.

[0045] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An ophthalmic minimally invasive drainage device comprising a drainage tube (1), a dispersion tube (8) and a release tube (10) fixed as one, characterized in that: The longitudinal section shape of the drainage tube (1), the dispersion tube (8) and the release tube (10) is flat, the left end of the drainage tube (1) is provided with a liquid inlet assembly for liquid inlet; the upper part of the drainage tube (1) is provided with a fixing assembly for limiting surgical line; The fixing assembly comprises a fixed edge groove one (5) and a fixed edge groove two (6) arranged on the upper part of the drainage tube (1), the whole formed by the fixed edge groove one (5) and the fixed edge groove two (6) is X-shaped, and the intersection of the fixed edge groove one (5) and the fixed edge groove two (6) is fixedly connected with a limiting piece (7); The limiting piece (7) comprises a connecting column (702) fixedly installed on the drainage tube (1), the upper part of the connecting column (702) is fixedly connected with a limiting ball (701) in a uniform manner, and the lower part of the limiting ball (701) is provided with a contact inclined surface (703); The dispersion tube (8) is fixedly connected with a fixed lug (9); the release tube (10) is in the shape of a circular arc, the right end of the release tube (10) is provided with a pressure stabilizing membrane (12), a pressure stabilizing port (14) is arranged between the pressure stabilizing membrane (12) and the release tube (10), and the pressure stabilizing membrane (12) adopts a biological film with a thickness of 0.02-0.05 mm.

2. A minimally invasive ophthalmic drainage device according to claim 1, wherein: The fixed lug (9) is provided with a fixed hole (901), and the inner circumference of the fixed hole (901) is uniformly provided with an embedded groove (902), and the cross section shape of the embedded groove (902) is V-shaped.

3. The minimally invasive ophthalmic drainage device of claim 1, wherein: The lower surface of the release tube (10) is provided with an absorption hole (13), and the side surface of the release tube (10) is provided with a release hole (11).

4. A minimally invasive glaucoma device according to claim 3, wherein: The shape of the absorption hole (13) is any one of a circle, an ellipse and a notch.

5. The minimally invasive ophthalmic drainage device of claim 1, wherein: The number of the limiting balls (701) is four, the lower surface of the limiting ball (701) is provided with a groove (704), the connecting part of the fixed edge groove one (5) and the fixed edge groove two (6) is provided with a connecting corner (15), and the positions of the limiting ball (701) and the connecting corner (15) correspond to each other.

6. The minimally invasive ophthalmic drainage device of claim 1, wherein: The liquid inlet assembly comprises a drainage inclined surface (2), a liquid inlet port (3) and a side liquid port (4) arranged at the left end of the drainage tube (1).

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