A glaucoma drainage device and control method thereof

Abstract

The present application discloses a glaucoma drainage device and a control method thereof, wherein the glaucoma drainage device comprises a first drainage tube and a second drainage tube; the first drainage tube comprises a sleeve portion and a drainage portion; the sleeve portion is hollow to form an assembly cavity, and the assembly cavity forms an opening toward the drainage portion; one end of the second drainage tube is inserted into the assembly cavity, and the other end extends out of the opening and penetrates the drainage portion; the sleeve portion is provided with a first microhole; the second drainage tube is provided with a second microhole at a position corresponding to the first microhole, and the first microhole and the second microhole partially overlap to drain the aqueous humor; the drainage portion is provided with a third microhole; the second drainage tube is provided with a fourth microhole at a position corresponding to the third microhole, and the third microhole and the fourth microhole partially overlap to drain the aqueous humor. The present application adjusts the overlapping area of ​​the first microhole and the second microhole by rotating the second drainage tube to adjust the aqueous humor flow of the drainage device, thereby achieving the purpose of regulating intraocular pressure, solving the limitations of traditional glaucoma drainage devices in pressure regulation, and avoiding surgical failure due to poor intraocular pressure control.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a glaucoma drainage device and a control method thereof. Background Art

[0002] Glaucoma is the second most common irreversible eye disease causing blindness worldwide and one of the leading causes of blindness in my country. Glaucoma is mainly caused by poor drainage of aqueous humor in the eye, which leads to increased intraocular pressure. This increase in pressure can cause continuous damage to the optic nerve, eventually leading to optic nerve atrophy and blindness.

[0003] In the treatment of glaucoma, patients at different stages of glaucoma need to maintain different target intraocular pressures. However, current glaucoma drainage devices cannot be adjusted later according to the individual differences of patients after surgery. Therefore, although patients successfully lower their intraocular pressure through one surgery, the condition of some patients will continue to worsen due to the inability to continuously adjust and maintain it within the ideal range required by each patient. In addition, the surface area of ​​the drainage plate of existing glaucoma drainage devices is usually small, making it easy for the drainage plate to be wrapped by the organizational membrane after surgery, hindering the outflow of aqueous humor and causing the drainage device to lose its function.

[0004] Therefore, the prior art needs to be improved. Summary of the invention

[0005] In view of the above-mentioned deficiencies in the prior art, the object of the present invention is to provide a glaucoma drainage device and a control method thereof, by rotating the second drainage tube to flexibly adjust the relative positions of the first micropore and the second micropore to adjust the different opening and closing states of the first micropore and the second micropore, thereby adjusting the aqueous humor flow of the drainage device to better achieve the target intraocular pressure, solve the limitations of traditional glaucoma drainage devices in pressure regulation, and avoid surgical failure due to poor intraocular pressure control.

[0006] This application is implemented through the following technical solutions:

[0007] The present application discloses a glaucoma drainage device, wherein the glaucoma drainage device comprises:

[0008] A first drainage tube, comprising a sleeve portion for inserting into the anterior chamber and a drainage portion arranged to fit the surface of the sclera; the sleeve portion is hollow to form an assembly cavity, and the assembly cavity is formed with an opening toward the drainage portion;

[0009] A second drainage tube, one end of which is inserted into the assembly cavity, and the other end of which extends out of the opening and passes through the drainage portion; the second drainage tube is rotatable;

[0010] Wherein, the sleeve portion is provided with a first microhole connected to the assembly cavity; the second drainage tube is provided with a second microhole at a position corresponding to the first microhole, and when the first microhole and the second microhole at least partially overlap, they are used to drain aqueous humor;

[0011] The drainage portion is provided with a third microhole; the second drainage tube is provided with a fourth microhole at a position corresponding to the third microhole, and when the third microhole and the fourth microhole at least partially overlap, they are used to drain the aqueous humor.

[0012] The glaucoma drainage device described above, wherein a connecting channel is provided on the drainage part directly opposite to the opening; a rotating handle is provided at the end of the second drainage tube extending out of the connecting channel; a connecting screw hole is provided at the end of the connecting channel away from the opening; the second drainage tube is screwed to the connecting screw hole; a protrusion is provided on the hole wall of the connecting screw hole; a groove is provided on the second drainage tube at a position corresponding to the protrusion; the groove abuts against the protrusion to constrain the second drainage tube.

[0013] The glaucoma drainage device is characterized in that three protrusions are provided on the hole wall of the connecting screw hole, and three grooves are provided on the second drainage tube.

[0014] The glaucoma drainage device, wherein the drainage portion is provided with a marking portion; the rotating handle is provided with a positioning portion; when the positioning portion is facing the marking portion, it is used to display the overlapping state of the first micropore and the second micropore.

[0015] The glaucoma drainage device, wherein the rotating handle is provided with positioning part 1, positioning part 2 and positioning part 3; the interval angle between positioning part 1 and positioning part 2 is 15 degrees; the interval angle between positioning part 2 and positioning part 3 is 30 degrees.

[0016] The glaucoma drainage device is characterized in that the first drainage tube is provided with at least two first micropores; at least two of the first micropores are distributed circumferentially along the tube wall of the first drainage tube and are evenly spaced; the second drainage tube is provided with at least two second micropores; at least two of the second micropores are distributed circumferentially along the tube wall of the second drainage tube and are evenly spaced.

[0017] The glaucoma drainage device is characterized in that the drainage portion is provided with a through hole for passing a suture; and outflow ports are provided on both sides of the drainage portion.

[0018] The glaucoma drainage device is characterized in that the outer tube wall of the first drainage tube is provided with a first anti-slip frosted layer; the outer tube wall of the second drainage tube is provided with a second anti-slip frosted layer.

[0019] The glaucoma drainage device, wherein the first drainage tube and the second drainage tube are both transparent or translucent drainage tubes.

[0020] The present application also discloses a control method of a glaucoma drainage device, which is used for any of the glaucoma drainage devices described above, wherein the control method comprises:

[0021] Determine aqueous humor flow values;

[0022] determining a rotation angle of the second drainage tube based on the aqueous humor flow value;

[0023] The second drainage tube is rotated according to the rotation angle until the second drainage tube is rotated to a predetermined position.

[0024] Compared with the prior art, the embodiments of the present invention have the following advantages:

[0025] The present application discloses a glaucoma drainage device and a control method thereof, which flexibly adjusts the overlapping area of ​​the first micropore and the second micropore by rotating the second drainage tube to adjust the different opening and closing states of the first micropore and the second micropore, thereby adjusting the aqueous humor flow of the drainage device to better achieve the target intraocular pressure, solve the limitations of traditional glaucoma drainage devices in pressure regulation, and avoid surgical failure due to poor intraocular pressure control. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 is a schematic diagram of the main structure of the glaucoma drainage device of the present invention;

[0028] Figure 2 is a schematic diagram of the main structure of the glaucoma drainage device of the present invention from another perspective;

[0029] Figure 3 It is a partial structural schematic diagram of the glaucoma drainage device of the present invention;

[0030] Figure 4 is a cross-sectional view of a first drainage device of the glaucoma drainage device of the present invention;

[0031] Figure 5 is a schematic structural diagram of a second drainage device of the glaucoma drainage device of the present invention;

[0032] Figure 6 It is a schematic structural diagram of a rotating handle of a second drainage device of a glaucoma drainage device of the present invention;

[0033] Figure 7 It is a flow chart of the steps of the glaucoma drainage device control method of the present invention.

[0034] Explanation of the reference numerals: 100, first drainage tube; 110, sleeve portion; 111, assembly cavity; 112, opening; 113, first microhole; 120, drainage portion; 121, third microhole; 122, connecting channel; 123; marking portion; 124, through hole; 130, connecting screw hole; 131, protrusion; 200, second drainage tube; 210, second microhole; 220, fourth microhole; 230, groove; 240, rotating handle; 241, positioning portion. DETAILED DESCRIPTION

[0035] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] Existing glaucoma drainage devices are unable to set the target intraocular pressure before surgery or adjust it after surgery, causing the condition of some patients to continue to worsen after surgery. At the same time, the existing glaucoma drainage tubes or drainage valves have a small surface area and gradually lose their function after being wrapped by the organizational membrane.

[0037] Based on the above problems of the prior art, the present application discloses a glaucoma drainage device, such as Figure 1 , Figure 2 , Figure 5 and Figure 6 As shown, it includes a first drainage tube 100 and a second drainage tube 200; the first drainage tube 100 includes a sleeve portion 110 for inserting into the anterior chamber and a drainage portion 120 arranged to fit the surface of the sclera; the sleeve portion 110 is hollow to form an assembly cavity 111, and the assembly cavity 111 is formed with an opening 112 facing the drainage portion 120; a connecting channel 122 is arranged on the drainage portion 120 facing the opening 112; the second drainage tube 200 is rotatably arranged on the first drainage tube 100; one end of the second drainage tube 200 is inserted into the assembly cavity 111, and the other end extends out of the opening 112 and is inserted into the connecting channel 122;

[0038] Among them, the sleeve portion 110 is provided with a first microhole 113 that is connected to the assembly cavity 111; the second drainage tube 200 is provided with a second microhole 210 at a position corresponding to the first microhole 113, and when the first microhole 113 and the second microhole 210 at least partially overlap, they are used to drain aqueous humor; the drainage portion 120 is provided with a third microhole 121 that is connected to the connecting channel 122; the second drainage tube 200 is provided with a fourth microhole 220 at a position corresponding to the third microhole 121, and when the third microhole 121 and the fourth microhole 220 at least partially overlap, they are used to drain aqueous humor.

[0039] When using, Figure 1 As shown, the first drainage tube 100 is arranged on the second drainage tube 200, and the sleeve part 110 of the first drainage tube 100 is inserted into the anterior chamber. The end of the sleeve part 110 inserted into the anterior chamber is provided with a first microhole 113, and the drainage part 120 is used to fit the scleral surface to fix the drainage device; the second drainage tube 200 is provided with a second microhole 210 at a position corresponding to the first microhole 113, and the other end of the second drainage tube 200 is inserted into the connecting channel 122 and connected to the first drainage tube 100; the aqueous humor flows into the assembly cavity 111 through the first microhole 113 and the second microhole 210, and flows out from the third microhole 121 and the fourth microhole 220 through the assembly cavity 111 to the drainage part 120, so as to effectively reduce the intraocular pressure. When the intraocular pressure changes, the overlapping area of ​​the first microhole 113 and the second microhole 210 is adjusted by rotating the second drainage tube 200 to adjust the flow value of the aqueous humor.

[0040] It can be seen that in this embodiment, the overlapping area of ​​the first micropore 113 and the second micropore 210 is flexibly adjusted by rotating the second drainage tube 200 to adjust the different opening and closing states of the first micropore 113 and the second micropore 210, thereby flexibly adjusting the aqueous humor flow of the drainage device to avoid failure of the operation due to poor control of intraocular pressure. In this embodiment, the drainage part 120 is provided with an outlet, and when the aqueous humor flows to the drainage part 120 through the third micropore 121 and the fourth micropore 220, the aqueous humor on the drainage part 120 flows to the sclera surface through the outlet.

[0041] Specifically, the glaucoma drainage device disclosed in this embodiment is composed of a first drainage tube 100 and a second drainage tube 200, and can be used in medical scenarios. For example, in glaucoma treatment, when the patient's intraocular pressure changes, the medical staff rotates the second drainage tube 200, and the overlapping area of ​​the second micropore 210 and the first micropore 113 changes; when the patient's intraocular pressure increases, the second drainage tube 200 is rotated to make the first micropore 113 and the second micropore 210 completely overlap, at this time, the third micropore 121 and the fourth micropore 220 are also completely overlapped, and the aqueous humor flow value of the first micropore 113 and the second micropore 210 reaches the maximum, which can draw out more aqueous humor and reduce intraocular pressure; when the second drainage tube 200 is rotated so that the overlapping part of the first micropore 113 and the second micropore 210 gradually decreases, the aqueous humor flow value of the first micropore 113 and the second micropore 210 decreases accordingly, so as to reduce the amount of aqueous humor drained by the first drainage tube 100 and the second drainage tube 200 and increase intraocular pressure.

[0042] It can be seen that after the operation, the second drainage tube 200 is rotated to adjust the overlapping area of ​​the second micropore 210 and the first micropore 113, thereby adjusting the amount of aqueous humor drainage. Compared with the existing drainage tubes, the glaucoma drainage device disclosed in this embodiment allows medical staff to dynamically adjust the intraocular pressure according to the individual needs of the patient, so that it is closer to the ideal target intraocular pressure, thereby improving the success rate of the operation, reducing the occurrence of postoperative complications, and overcoming the limitations of traditional drainage devices in pressure regulation.

[0043] In another embodiment of the present invention, Figure 2 As shown, both ends of the first drainage tube 100 are in an open state; one end of the second drainage tube 200 close to the second microhole 210 is in an open state, and the other end is in a closed state. The number of the third micropores 121 and the fourth micropores 220 are both greater than the number of the first micropores 113 and the second micropores 210. When the second micropores 113 and the second micropores 210 are partially or completely overlapped, the fourth micropores 220 and the third micropores 121 are completely overlapped. At this time, the aqueous humor flow value is relatively large, which can reduce the patient's intraocular pressure to a lower level; when the first micropores 113 and the second micropores 210 are completely non-overlapping, the fourth micropores 220 and the third micropores 121 are partially overlapped. At this time, the end of the sleeve 110 close to the first micropores 113 and the end of the second drainage tube 200 close to the second micropores 210 are in an open state, and the aqueous humor only flows into the assembly cavity 111 through this port, and the aqueous humor flow is relatively small; when the intraocular pressure reaches an ideal state, the second drainage tube 200 is rotated so that the third micropores 121 and the fourth micropores 220 are completely non-overlapping, so as to close the outflow of the aqueous humor and prevent the intraocular pressure from decreasing.

[0044] It can be seen that in this embodiment, the overlapping relationship between the first micropore 113 and the second micropore 210 and between the third micropore 121 and the fourth micropore 220 is adjusted by rotating the second drainage tube 200 to adjust the aqueous humor flow value, thereby achieving the regulation of the patient's intraocular pressure.

[0045] In another embodiment of the present invention, Figure 1 and Figure 3 As shown, a connecting screw hole 130 is provided at one end of the connecting channel 122 away from the opening 112; the second drainage tube 200 is screwed with the connecting screw hole 130; a protrusion 131 is provided on the hole wall of the connecting screw hole 130; a groove 230 is provided on the second drainage tube 200 at a position corresponding to the protrusion 131; the groove 230 abuts against the protrusion 131 to constrain the second drainage tube 200.

[0046] When in use, the second drainage tube 200 is inserted into the connecting channel 122 and a thread is provided at a position corresponding to the connecting screw hole 130. The second drainage tube 200 is screwed together with the connecting screw hole 130 to more conveniently rotate the second drainage tube 200. A protrusion 131 is provided on the hole wall of the connecting screw hole 130, and a groove 230 is provided corresponding to the thread on the second threaded tube. When the second drainage tube 200 stops rotating, the protrusion 131 and the groove 230 abut against each other to constrain the second drainage tube 200 to continue rotating, thereby fixing the second drainage tube 200 at a predetermined angle to ensure the stability of the aqueous humor flow and thereby maintain the stability of the intraocular pressure.

[0047] Specifically, during the treatment of glaucoma, a connecting screw hole 130 is provided on the end of the connecting channel 122 that is away from the outlet, and the second drainage tube 200 is screwed to the connecting screw hole 130; the medical staff determines the aqueous humor flow value through the patient's intraocular pressure and rotates the second drainage tube 200. When the second drainage tube 200 is rotated to a predetermined angle, the protrusion 131 on the connecting screw hole 130 and the groove 230 on the second drainage tube 200 abut against each other to limit the rotation of the second drainage tube 200 and maintain the stability of the aqueous humor flow value.

[0048] This embodiment ensures that the second drainage tube 200 can be firmly locked at a predetermined angle by providing a protrusion 131 and a groove 230, thereby preventing the second drainage tube from being affected by actions such as rubbing eyes, blinking, and squinting that the patient may perform in daily life. This effectively prevents the risk of accidental rotation of the second drainage tube 200 due to other external forces, and improves the functional sustainability and reliability of the glaucoma drainage device, allowing it to remain in the best working condition for a longer period of time.

[0049] In this embodiment, the outer wall of the second drainage tube 200 and the inner wall of the first drainage tube 100 fit tightly together, and when the second drainage tube 200 is rotated, a certain friction force is generated between the first drainage tube 100 and the second drainage tube 200. When the pipeline of the glaucoma drainage device is affected by tiny blockages and the flow of aqueous humor is affected, the friction force generated by the second drainage tube 200 and the first drainage tube 100 can help remove these tiny blockages by rotating the second drainage tube 200, thereby ensuring the normal operation of the drainage device. It can be seen that in this embodiment, the friction force is generated by rotating the second drainage tube 200 to remove tiny blockages, and no additional surgery is required to dredge the drainage device, thereby improving the use efficiency and reliability of the drainage device.

[0050] In another embodiment of the present invention, Figure 7 As shown, three protrusions 131 are provided on the hole wall of the connecting screw hole 130, and three grooves 230 are provided on the second drainage tube 200; similarly, the first groove, the second groove and the third groove are provided at the positions corresponding to the first protrusion, the second protrusion and the third protrusion on the second drainage tube respectively; in actual use, the rotating handle 240 at the end of the second drainage tube 200 extending out of the connecting channel 122 is a hexagon; when the rotating handle adopts a regular hexagon, the same color is pre-marked on the opposite sides of the regular hexagon.

[0051] Specifically, the six sides of the regular hexagonal rotating handle are recorded as the first to sixth sides in clockwise order, and the first and fourth sides are pre-set to red, the second and fifth sides are pre-set to green, and the third and sixth sides are pre-set to yellow; rotate the second drainage tube 200, when the red side is facing upward, at this time, the first protrusion and the first groove are abutted, the first micropore 113 and the second micropore 210 are completely overlapped, and the aqueous humor drainage value reaches the maximum; when the green side is facing upward, the second protrusion and the second groove are abutted, and the first micropore 113 and the second micropore 210 are partially overlapped; when the yellow side is facing upward, the third protrusion and the third groove are abutted, the first micropore 113 and the second micropore 210 are completely non-overlapping, and the aqueous humor flow value reaches the minimum to avoid low intraocular pressure.

[0052] It can be seen that this embodiment uses a regular hexagonal rotating handle to pre-set the relationship between the regular hexagonal rotating handle and the aqueous humor flow value, and rotates the regular hexagonal rotating handle to display the overlapping state of the first micropore 113 and the second micropore 210, thereby accurately controlling the aqueous humor flow value.

[0053] In another embodiment of the present invention, Figure 1 and Figure 2As shown, the drainage portion 120 is provided with a marking portion 123; the end of the second drainage tube 200 extending out of the connecting channel 122 is provided with a rotating handle 240; the rotating handle 240 is provided with a positioning portion 241; when the positioning portion 241 is facing the marking portion 123, it is used to display the overlapping state of the first micropore and the second micropore.

[0054] When in use, the end of the second drainage tube 200 extending out of the connecting channel 122 is provided with a rotating handle 240, and a positioning portion 241 is provided on the rotating handle 240. When the positioning portion 241 faces the marking portion 123 provided on the surface of the drainage portion 120, the overlapping state of the first micropore 113 and the second micropore 210 can be displayed to precisely adjust the flow of aqueous humor, thereby accurately adjusting the intraocular pressure. In actual use, the rotating handle 240 can also be provided with a plurality of positioning portions 241, each positioning portion 241 is arranged around the rotating handle 240, and the interval angles between each positioning portion 241 are different; the second drainage tube 200 is rotated so that the positioning portion 241 faces the marking portion 123, and when different positioning portions 241 face the marking portion 123, the overlapping area of ​​the first micropore 113 and the second micropore 210 is different, thereby determining the flow of aqueous humor.

[0055] Specifically, during the treatment of glaucoma, the rotating handle 240 of the glaucoma drainage device is provided with three positioning parts 241, namely positioning part 1, positioning part 2 and positioning part 3; the interval angle between the positioning part 1 and the positioning part 2 is 15 degrees; the interval angle between the positioning part 2 and the positioning part 3 is 30 degrees. When the second drainage tube 200 is rotated, when the positioning part 1 is facing the marking part 123, the first micropore 113 and the second micropore 210 are completely overlapped, at which time the amount of aqueous humor drainage reaches the maximum; when the positioning part 2 is facing the marking part 123, the first micropore 113 and the second micropore 210 are partially overlapped; when the positioning part 3 is facing the marking part 123, the second micropore 210 and the second micropore 210 are completely staggered, at which time the drainage device is closed to prevent the aqueous humor from flowing out, resulting in low intraocular pressure.

[0056] It can be seen that this embodiment records the rotation angle of the second drainage tube 200 by setting the positioning portion 241 and the marking portion 123, thereby providing medical staff with an intuitive and convenient way to monitor and control the rotation angle of the second drainage tube 200, so that they can flexibly adjust the intraocular pressure according to the specific needs of the patient and ensure that the intraocular pressure is maintained within an ideal range.

[0057] In this embodiment, medical staff can set the positions of the first microhole 113 and the second microhole 210 during or before the operation according to clinical experience and the specific conditions of the patient, and rotate the second drainage tube 200 in advance to obtain the relationship between the positioning part 241 on the rotating handle 240 and the change in aqueous humor flow, so as to accurately achieve the target intraocular pressure after the operation. At the same time, the positioning part 241 on the rotating handle 240 also facilitates the estimation and recording of the aqueous humor adjustment amount after the operation.

[0058] In this embodiment, the first drainage tube 100 is provided with at least two first micropores 113; at least two first micropores 113 are distributed along the circumference of the tube wall of the first drainage tube 100 and are evenly spaced; the second drainage tube 200 is provided with at least two second micropores 210; at least two second micropores 210 are distributed along the circumference of the tube wall of the second drainage tube 200 and are evenly spaced. In actual use, different models of drainage devices are provided with different numbers of first micropores 113 and second micropores 210. The more the number of first micropores 113 and second micropores 210, the more aqueous humor is drained, and the intraocular pressure can be reduced to a lower level.

[0059] Specifically, during the treatment of glaucoma, six first micropores 113 are provided on the end of the sleeve portion 110 of the first drainage tube 100 of the glaucoma drainage device that is inserted into the anterior chamber, and the six first micropores 113 are arranged opposite to each other on the side wall of the sleeve portion 110; six second micropores 210 are also provided on the second drainage tube 200 at positions opposite to the first micropores 113; when the label 1 is opposite to the marking portion 123, the six first micropores 113 and the six second micropores 210 completely overlap, and the third micropore 121 and the fourth micropore 220 also completely overlap, and the aqueous humor enters the assembly cavity 111 through the first micropores 113 and the second micropores 210, and flows out to the two sides of the drainage portion 120 through the third micropores 121 and the fourth micropores 220.

[0060] It can be seen that this embodiment rotates the second drainage tube 200 according to the different intraocular pressure states of the patient after surgery, and records the overlapping state of the first micropore 113 and the second micropore 210 by marking, so as to accurately adjust the intraocular pressure and avoid poor intraocular pressure control due to narrow aqueous humor outflow outlet, which may lead to surgical failure.

[0061] In another embodiment of the present invention, Figure 3 and Figure 4As shown, the drainage part 120 is provided with a through hole 124, and the through hole 124 is used to pass the suture; the two sides of the drainage part 120 are hollow and provided with outflow ports. When the aqueous humor flows to the drainage part 120 through the third micropore 121, it flows to the scleral surface through the outflow ports on both sides. In actual use, the two sides of the drainage part 120 are provided with through holes 124, and the sutures are passed through the drainage part 120 to fix the drainage device on the scleral wall. At the same time, the overall thickness of the drainage part 120 gradually decreases from the center position to the edge position, and a certain slope is provided on both sides. When the drainage part 120 is fixed on the scleral wall, the smooth slope surface can reduce the wear on the scleral wall and avoid secondary damage to the patient.

[0062] In this embodiment, the drainage portion 120 is fan-shaped or semi-elliptical as a whole to increase the area of ​​the drainage portion 120. When the aqueous humor flows out to both sides of the drainage portion 120 through the third micropore 121 and the fourth micropore 220, a diffuse filtration bleb is formed to avoid scarring and localization of the filtration bleb, which may cause increased intraocular pressure and surgical failure. By expanding the area of ​​the drainage portion 120, the flow of aqueous humor is more effectively dispersed, thereby improving the drainage efficiency and reducing the risk of the drainage device being wrapped by the mechanized membrane.

[0063] In another embodiment of the present invention, the outer tube wall of the first drainage tube 100 is provided with a first anti-skid frosted layer (not marked in the drawings); the outer tube wall of the second drainage tube 200 is provided with a second anti-skid frosted layer (not marked in the drawings). The first drainage tube 100 is fixedly installed in the eye, and the first anti-skid frosted layer is provided on the outer tube wall of the first drainage tube 100 to increase the friction of the drainage device and reduce the displacement of the drainage device; the second drainage tube 200 is inserted into the first drainage tube 100, and the outer tube wall of the second drainage tube 200 is provided with a second anti-skid frosted layer to increase the friction between the outer tube wall of the second drainage tube 200 and the inner tube wall of the first drainage tube 100 to prevent the second drainage tube 200 from rotating, and at the same time, the friction generated by rotating the second drainage tube 200 can also be used to remove small blockages to ensure drainage effectiveness.

[0064] Specifically, during the treatment of glaucoma, the sleeve portion 110 of the first drainage tube 100 is used to be inserted into the anterior chamber, and the drainage portion 120 is used to fit the surface of the sclera; the outer surface of the middle section of the sleeve portion 110, that is, the part that sneaks into the eye, is provided with a non-slip frosted layer to reduce the occurrence of displacement of the drainage device; at the same time, the outer surface of the second drainage tube 200 is also provided with a non-slip frosted layer to increase the friction between the first drainage tube 100 and the second drainage tube 200.

[0065] In this embodiment, both the first drainage tube 100 and the second drainage tube 200 are transparent or translucent drainage tubes. Specifically, in actual use, both the first drainage tube 100 and the second drainage tube 200 are transparent or translucent drainage tubes, and the rotation handle 240 of the second drainage tube 200 is provided with a number for recording the rotation angle of the second drainage tube 200, so as to facilitate observation of the overlapping state of the first microhole 113 and the second microhole 210, so as to accurately reach the target intraocular pressure.

[0066] Based on the above embodiments, the present application also discloses a control method of a glaucoma drainage device, such as Figure 7 As shown, a glaucoma drainage device for use in any one of the above, wherein the control method of the glaucoma drainage device comprises:

[0067] S100, determining the aqueous humor flow value;

[0068] S200, determining a rotation angle of the second drainage tube 200 based on the aqueous humor flow value;

[0069] S300, rotating the second drainage tube 200 according to the rotation angle until the second drainage tube 200 is rotated to a predetermined position.

[0070] Specifically, in actual use, the sleeve portion 110 of the first drainage tube 100 is inserted into the anterior chamber, and the drainage portion 120 is attached to the scleral surface. When the patient's intraocular pressure is monitored to be elevated after surgery, the target intraocular pressure is determined according to the intraocular pressure, and the aqueous humor flow value to be drawn is determined in combination with the patient's current intraocular pressure and the target intraocular pressure; then, the rotation angle of the second drainage tube 200 is determined according to the aqueous humor, and the rotation angle of the second drainage tube 200 determines the overlapping area of ​​the first micropore 113 and the second micropore 210, thereby affecting the aqueous humor flow value; the second drainage tube 200 is rotated according to the rotation angle until the second drainage tube 200 is rotated to a predetermined position. At this time, a state of complete overlap, partial overlap, or complete non-overlap will be formed between the first micropore 113 and the second micropore 210, thereby adjusting the patient's intraocular pressure to the target intraocular pressure. It can be seen that in this embodiment, the overlapping state between the first micropore 113 and the second micropore 210 is adjusted by rotating the second drainage tube 200 to adjust the patient's intraocular pressure.

[0071] In another embodiment of the present invention, medical staff sets the relationship between the position of the first microhole 113 and the second microhole 210 and the aqueous humor flow value before or during the operation based on clinical experience and the patient's condition; after monitoring the patient's intraocular pressure increase signal after the operation, the aqueous humor flow is accurately adjusted to avoid multiple operations.

[0072] In this embodiment, the medical staff can choose to use micro toothless forceps to rotate the second drainage tube 200 to more accurately control the rotation angle of the second drainage tube 200. The medical staff can also rotate the second drainage tube 200 under slit lamp magnification to ensure that the rotation angle of the second drainage tube 200 can be accurately controlled.

[0073] In summary, a glaucoma drainage device and a control method thereof, wherein the glaucoma drainage device comprises a first drainage tube and a second drainage tube; the first drainage tube comprises a sleeve portion for inserting into the anterior chamber and a drainage portion arranged in contact with the surface of the sclera; the sleeve portion is hollow to form an assembly cavity, and the assembly cavity is formed with an opening toward the drainage portion; a connecting channel is arranged on the drainage portion opposite to the opening; the second drainage tube is rotatably arranged on the first drainage tube; one end of the second drainage tube is inserted into the assembly cavity, and the other end extends out of the opening and is inserted into the connecting channel; wherein a first microhole communicating with the assembly cavity is arranged on the sleeve portion; a second microhole is arranged on the second drainage tube at a position corresponding to the first microhole, and when the first microhole and the second microhole at least partially overlap, the microhole is used to drain the aqueous humor; a third microhole communicating with the connecting channel is arranged on the drainage portion; a fourth microhole is arranged on the second drainage tube at a position corresponding to the third microhole, and when the third microhole and the fourth microhole at least partially overlap, the microhole is used to drain the aqueous humor.

[0074] The present application flexibly adjusts the overlapping area of ​​the first micropore and the second micropore by rotating the second drainage tube to adjust the different opening and closing states of the first micropore and the second micropore, thereby adjusting the aqueous humor flow of the drainage device to better achieve the target intraocular pressure, solve the limitations of traditional glaucoma drainage devices in pressure regulation, and avoid surgical failure due to poor intraocular pressure control.

[0075] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application may be combined with each other.

[0076] It should be noted that the present invention takes a glaucoma drainage device as an example to introduce the specific structure and working principle of the present invention, but the application of the present invention is not limited to the glaucoma drainage device, and can also be applied to the production and use of other similar workpieces.

[0077] It should be understood that the present invention is not limited to the exact construction that has been described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

[0078] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A glaucoma drainage device, characterized in that: include: A first drainage tube, comprising a sleeve portion for inserting into the anterior chamber and a drainage portion disposed in contact with the surface of the sclera; The sleeve portion is hollow to form an assembly cavity, and the assembly cavity is formed with an opening toward the drainage portion; A second drainage tube, one end of which is inserted into the assembly cavity, and the other end of which extends out of the opening and passes through the drainage portion; the second drainage tube is rotatable; Wherein, the sleeve portion is provided with a first microhole connected to the assembly cavity; the second drainage tube is provided with a second microhole at a position corresponding to the first microhole, and when the first microhole and the second microhole at least partially overlap, they are used to drain aqueous humor; The drainage portion is provided with a third microhole; the second drainage tube is provided with a fourth microhole at a position corresponding to the third microhole, and when the third microhole and the fourth microhole at least partially overlap, they are used to drain the aqueous humor.

2. The glaucoma drainage device according to claim 1, characterized in that: A connecting channel is provided on the drainage part directly opposite to the opening; a rotating handle is provided at the end of the second drainage tube extending out of the connecting channel; a connecting screw hole is provided at the end of the connecting channel away from the opening; the second drainage tube is screwed to the connecting screw hole; a protrusion is provided on the hole wall of the connecting screw hole; a groove is provided on the second drainage tube at a position corresponding to the protrusion; the groove abuts against the protrusion to constrain the second drainage tube.

3. The glaucoma drainage device according to claim 2, characterized in that: Three protrusions are arranged on the hole wall of the connecting screw hole, and three grooves are arranged on the second drainage pipe.

4. The glaucoma drainage device according to claim 2, characterized in that: The drainage portion is provided with a marking portion; the rotating handle is provided with a positioning portion; when the positioning portion is facing the marking portion, it is used to display the overlapping state of the first micropore and the second micropore.

5. The glaucoma drainage device according to claim 4, characterized in that: The rotating handle is provided with a positioning portion 1, a positioning portion 2 and a positioning portion 3; the interval angle between the positioning portion 1 and the positioning portion 2 is 15 degrees; the interval angle between the positioning portion 2 and the positioning portion 3 is 30 degrees.

6. The glaucoma drainage device according to claim 5, characterized in that: The first drainage tube is provided with at least two first micropores; at least two of the first micropores are distributed circumferentially along the tube wall of the first drainage tube and are evenly spaced; the second drainage tube is provided with at least two second micropores; at least two of the second micropores are distributed circumferentially along the tube wall of the second drainage tube and are evenly spaced.

7. The glaucoma drainage device according to claim 1, characterized in that: The drainage part is provided with a through hole, and the through hole is used to pass the suture; and outflow ports are provided on both sides of the drainage part.

8. The glaucoma drainage device according to claim 1, characterized in that: The outer tube wall of the first drainage tube is provided with a first anti-slip frosted layer; the outer tube wall of the second drainage tube is provided with a second anti-slip frosted layer.

9. The glaucoma drainage device according to claim 7, characterized in that: The first drainage tube and the second drainage tube are both transparent or translucent drainage tubes.

10. A control method for a glaucoma drainage device, used for the glaucoma drainage device according to any one of claims 1 to 9, characterized in that: The control method comprises: Determine aqueous humor flow values; determining a rotation angle of the second drainage tube based on the aqueous humor flow value; The second drainage tube is rotated according to the rotation angle until the second drainage tube is rotated to a predetermined position.

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