Stabilizer for implanting glaucoma drainage tube

Abstract

The utility model relates to a stabilizer for implanting a glaucoma drainage tube, which is used for positioning a needle head of a drainage tube injection molding device and comprises a fixing part for opening the upper eyelids and the lower eyelids of a patient, the fixing part is connected with a guide part capable of entering an anterior chamber, the guide part forms a guide channel for the needle head to penetrate through, and when the drainage tube is implanted, the needle head is inserted into the guide channel. And the guide channel is used for guiding and positioning the insertion and retreating actions of the needle head. According to the stabilizer, the upper eyelids and the lower eyelids of a patient are opened through the fixing component to form a working area, the guiding piece can enter the anterior chamber through a side incision of an eyeball, and the guiding piece is provided with a guiding channel for a needle of a drainage tube injection molding device to penetrate through; in the implantation process of the drainage tube, the needle head is inserted and retreated through the guide channel, the guide channel ensures that the path of the needle head is stable and accurate, and the risks that the needle head moves and the drainage tube is cut off are avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the aqueous humor drainage technical field more specifically, relate to a stabilizer for glaucoma drainage tube implantation. BACKGROUND

[0002] As an irreversible blinding eye disease, glaucoma has a large number of patients in China, and seriously threatens the vision health of patients. Compared with traditional glaucoma surgery, XEN glaucoma drainage tube implantation surgery gradually becomes an important means for treating glaucoma due to its small wound, rapid postoperative recovery and other advantages.

[0003] At present, for XEN glaucoma drainage tube implantation surgery, XEN glaucoma drainage tube injector is usually used to inject the drainage tube to the specified position. Specifically, the injector containing the XEN drainage tube is implanted from the angle of the chamber to the subconjunctival, and then the tip of the injector, that is, the needle of the injector, is retracted, so that the drainage tube can be successfully implanted. However, during the needle retraction process, the injector needle often shifts, which may cut off the drainage tube of the anterior chamber, resulting in postoperative drainage failure, and seriously affecting the surgical effect and postoperative recovery of the patient.

[0004] Therefore, it is necessary to provide a technical solution to solve the above problems. SUMMARY

[0005] The technical problem to be solved by the utility model is to provide a stabilizer for glaucoma drainage tube implantation in view of the above defects of the prior art.

[0006] The technical scheme adopted by the utility model to solve its technical problem is:

[0007] A stabilizer for glaucoma drainage tube implantation is constructed, which is used for positioning the needle of the drainage tube injection mold, including a fixing component for opening the upper and lower eyelids of the patient, the fixing component is connected with a guide piece that can enter the anterior chamber, the guide piece forms a guide channel for the needle to pass through, and when the drainage tube is implanted, the needle insertion and retraction actions are guided and positioned through the guide channel.

[0008] As an improvement of the stabilizer, the fixing component and the guide piece are movably connected, and a locking assembly for limiting the guide piece is arranged on the fixing component.

[0009] As an improvement of the stabilizer, the fixing component and the guide piece are connected through a ball hinge structure for multi-angle adjustment of the guide piece.

[0010] As an improvement of the stabilizer, the locking assembly includes a damper to control the torsion of the connecting point between the fixing component and the guide piece.

[0011] As an improvement of the stabilizer, the guide piece comprises a sleeve, and the guide channel is arranged axially through the sleeve.

[0012] As an improvement of the stabilizer, the fixing component comprises a semi-closed annular piece, and opposite ends of the annular piece are used for contacting the upper and lower eyelids of the patient.

[0013] As an improvement of the stabilizer, a plurality of limiting protrusions are arranged equidistantly at the bottom of the annular piece, and the limiting protrusions are used for pressing and fixing the eyelids of the patient.

[0014] As an improvement of the stabilizer, an arc-shaped part is arranged at the end of the limiting protrusion.

[0015] As an improvement of the stabilizer, a handle is further arranged, the handle is provided with a mounting groove, and the annular piece is mounted in the mounting groove, so that the fixing component is held by the handle.

[0016] As an improvement of the stabilizer, the annular piece and the handle are rotatably connected.

[0017] The stabilizer has the following beneficial effects: the stabilizer is used for first supporting the upper and lower eyelids of the patient by the fixing component, so that a stable working area is formed, the guide piece connected with the fixing component can enter the anterior chamber through the lateral incision of the eyeball, the guide piece is internally provided with a guide channel, and the needle of the drainage tube injection molding device can pass through the guide channel; during the implantation of the drainage tube, the needle is inserted and withdrawn through the guide channel, the guide channel ensures that the path of the needle is stable and accurate, and the risk of displacement of the needle is avoided; since the needle can be accurately and stably inserted and withdrawn to the predetermined position, the risk of cutting off the drainage tube is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the present application will be further described below in combination with the drawings and embodiments, and the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings:

[0019] Figure 1 is a schematic diagram of the three-dimensional structure of the present application;

[0020] Figure 2 is a schematic diagram of part of the three-dimensional structure of the present application;

[0021] Figure 3 is a schematic diagram of the three-dimensional structure of the fixing component and the guide piece of the present application;

[0022] Figure 4It is the A place enlarged view of the utility model.

[0023] In the figure: 1, fixed part; 11, ring part; 12, limiting convex part; 13, arc part; 2, guide part; 21, sleeve; 22, guide channel; 23, sliding sleeve; 3, locking assembly; 4, handle; 41, mounting groove. DETAILED DESCRIPTION

[0024] In order to make the utility model embodiment purposes, technical solutions and advantages more clearly, below will combine the technical scheme in the utility model embodiment to be clear, complete description, obviously, the described embodiment is the part embodiment of the utility model, instead of all embodiments.Based on the embodiment of the utility model, all other embodiments obtained by the ordinary skill in the art without creative labor are within the protection scope of the utility model.

[0025] As Figure 1 And Figure 2 As shown in a kind of glaucoma drainage tube implantation stabilizer for implantation, for the positioning of the needle of drainage tube injection machine, it is characterized in that, including fixed part 1, to open the upper and lower eyelids of patient, fixed part 1 is connected with the guide part 2 that can enter anterior chamber, guide part 2 is formed with the guide channel 22 for needle to pass, in the process of drainage tube implantation, to guide positioning for needle insertion and back-off action by guide channel 22.

[0026] Specifically, anterior chamber is the anterior chamber position of patient's eyeball;Through fixed part 1, the upper and lower eyelids of patient are first opened, forming a stable work area, guide part 2 connected with fixed part 1 can enter anterior chamber by lateral incision of eyeball, and guide part 2 is designed with guide channel 22 inside, for the needle of drainage tube injection machine to pass;During the process of drainage tube implantation, needle inserts and back-off action by guide channel 22, guide channel 22 ensures that the path of needle is stable and accurate, avoids the risk of needle displacement. Since needle can be accurately and stably inserted and back-off to predetermined position, the risk of drainage tube being cut off is reduced;Improve the success rate of XEN glaucoma drainage tube implantation surgery, conducive to the postoperative recovery of patient.

[0027] In some embodiments of the present application, the fixed component 1 and the guide 2 are movably connected, and the fixed component is provided with a locking assembly 3 for limiting the guide. Specifically, the fixed component 1 and the guide 2 can have a certain range of movement or angular adjustment, allowing the doctor to fine-tune the guide 2 during the operation according to the actual needs, to ensure that the needle of the drainage tube injection machine can be accurately inserted into the predetermined position; the locking assembly 3 can limit the guide 2 to prevent it from shaking or moving when it is not needed to move, and when the doctor adjusts the position of the guide 2, it can be fixed by the locking assembly 3, thereby ensuring the stability and safety of the operation.

[0028] In some embodiments of the present application, as shown in Figure 3 The fixed component 1 and the guide 2 are connected through a ball hinge structure for multi-angle adjustment of the guide 2.

[0029] Specifically, the fixed component 1 and the guide 2 are connected through a ball hinge structure; the ball hinge structure is composed of a ball head, a ball seat and a connecting rod, etc. The ball head is nested in the ball seat, and the ball seat and the ball rod are connected with the fixed component 1 and the guide 2 respectively, so that the guide 2 can rotate freely within a certain range, realizing multi-directional connection and motion transmission. By connecting the fixed component 1 and the guide 2 through the ball hinge structure, the doctor can more flexibly adjust the angle and position of the guide 2 during the operation, which helps the doctor better adapt to the eye structure and operation needs of different patients, and improves the accuracy and success rate of the operation.

[0030] In some embodiments of the present application, as shown in Figure 4 The locking assembly 3 includes a damper to control the torsion of the connection point between the fixed component 1 and the guide 2. Specifically, when the fixed component 1 and the guide 2 are connected through the ball hinge structure, since the ball hinge allows multi-directional rotation, torsion may occur at the connection point. The damper is installed at the connection point, and when the torsion acts on the connection point, the damper will exert a damping force opposite to the direction of the torsion, thereby consuming the torsion energy and controlling the size and change rate of the torsion. In this way, the guide 2 is prevented from easily rotating, ensuring the stability of the drainage tube implantation.

[0031] In some embodiments of the present application, the guide 2 comprises a sleeve 21, and the guide channel 22 is axially arranged through the sleeve 21. Specifically, the guide channel 22 axially arranged through the sleeve 21 is a continuous space inside the sleeve 21, which is used to ensure that the guided needle can move smoothly along the axial direction of the sleeve 21. When the needle needs to be guided to the preset position, the needle can be inserted through the guide channel 22 of the sleeve 21. Since the guide channel 22 is axially arranged through the sleeve 21, the object can move along the axial direction of the sleeve 21 without deviation or jamming. At the same time, the sleeve 21 can also provide certain support for the needle to prevent the needle from moving or deforming due to gravity or other external forces during movement.

[0032] Further, the sleeve 21 is sleeved with a sliding sleeve 23, the sliding sleeve 23 is slidably connected with the sleeve 21, and the sliding sleeve 23 and the fixed part 1 are connected through a ball hinge structure. So that the sleeve 21 can be adjusted at multiple angles; at the same time, through the cooperation of the sliding sleeve 23 and the sleeve 21, when it is necessary to fix the upper and lower eyelids of the patient, the sleeve 21 can be slid outward to avoid affecting the fixation of the fixed part 1 to the upper and lower eyelids of the patient; after fixation, the sleeve 21 is slid inward, so that the sleeve 21 can enter the anterior chamber through the lateral incision of the eyeball to guide the insertion and retraction of the syringe needle.

[0033] In some embodiments of the present application, the fixed part 1 comprises a semi-closed annular member 11, and the opposite ends of the annular member 11 are used to contact the upper and lower eyelids of the patient. Specifically, the fixed part 1 adopts a semi-closed annular member 11, so that the annular member 11 can partially wrap the eyeball of the patient, while allowing a certain space for surgical operation. The opposite ends of the annular member 11 are respectively designed with contact surfaces for contacting the upper and lower eyelids of the patient, and the contact surfaces have soft material and conforming profile to ensure close contact with the eyelids and comfort of the patient. When the annular member 11 contacts the upper and lower eyelids of the patient, it can effectively fix the eyeball of the patient to prevent the eyeball from moving during the operation; at the same time, the annular member 11 also provides stable support for the eyeball, which helps to reduce the pressure and damage to the eyeball caused by the operation, and reduces the error and uncertainty in the operation.

[0034] In some embodiments of the present application, a plurality of limiting protrusions 12 are equidistantly arranged at the bottom of the annular member 11, which are used to press and fix the eyelids of the patient. Specifically, the limiting protrusions 12 can generate a certain pressing force on the eyelids of the patient when the annular member 11 contacts the eyelids, thereby achieving the fixing effect.

[0035] In some embodiments of the present application, the end of the limiting protrusion is provided with an arc-shaped portion 13. Specifically, the end of the limiting protrusion in contact with the skin of the patient is provided with an arc-shaped portion 13 to avoid damaging the eyelids of the patient.

[0036] In some embodiments of the present application, the handle 4 is further provided with a mounting groove 41, and the annular member 11 is mounted in the mounting groove 41 to hold the fixing component 1 by the handle 4. Specifically, by the provision of the handle 4, the user can easily hold the fixing component 1 for operation without the need of using additional auxiliary tools or equipment, thereby improving the convenience of operation. The annular member 11 is closely connected with the handle 4 through the mounting groove 41, thereby enhancing the overall stability of the fixing component 1. During use, even if subjected to external force, the fixing component 1 is not easy to fall off or loosen, thereby ensuring the continuity and safety of operation.

[0037] In some embodiments of the present application, the annular member 11 and the handle 4 are rotatably connected. Specifically, the annular member 11 and the handle 4 can be relatively rotated within a certain range, and the user can more flexibly adjust the position and angle of the annular member 11 during use.

[0038] It should be understood that, for those skilled in the art, modifications or changes can be made according to the above description, and all these modifications and changes shall belong to the protection scope of the appended claims of the present application.

Claims

1. A stabilizer for glaucoma drainage tube implantation for positioning the needle of a tube injector, characterized in that, The fixed part is used to support the upper and lower eyelids of a patient, and a guide part connected with the fixed part can access the anterior chamber of the eye, and the guide part is provided with a guide channel through which a needle is inserted and retracted to guide the insertion and retraction of the needle during implantation of a drainage tube.

2. The stabilizer for glaucoma drainage tube implantation according to claim 1, wherein, The fixed part is movably connected with the guide part, and the fixed part is provided with a locking assembly for limiting the guide part.

3. The stabilizer for glaucoma drainage tube implantation according to claim 2, wherein, The fixed part is movably connected with the guide part through a ball hinge structure to allow multi-angle adjustment of the guide part.

4. The stabilizer for glaucoma drainage tube implantation according to claim 3, wherein, The locking assembly comprises a damper to control the torsion of the connecting point between the fixed part and the guide part.

5. The stabilizer for glaucoma drainage tube implantation according to claim 2, wherein, The guide part comprises a sleeve, and the guide channel is axially arranged through the sleeve.

6. The stabilizer for glaucoma drainage tube implantation according to claim 5, wherein, The fixed part comprises a semi-closed annular part, and opposite ends of the annular part are used to contact the upper and lower eyelids of a patient.

7. The stabilizer for glaucoma drainage tube implantation according to claim 6, wherein, A plurality of limiting protrusions are equidistantly arranged at the bottom of the annular part to press and fix the eyelids of the patient.

8. The stabilizer for glaucoma drainage tube implantation according to claim 7, wherein, Arc-shaped parts are arranged at the ends of the limiting protrusions.

9. A stabilizer for glaucoma drainage tube implantation according to any one of claims 6-8, wherein, A handle is further provided, the handle is provided with a mounting groove, and the annular part is mounted in the mounting groove to hold the fixed part by the handle.

10. The stabilizer for glaucoma drainage tube implantation according to claim 9, wherein, The annular part is rotatably connected with the handle.

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