Glaucoma drainage tube implanter
By designing a glaucoma drainage tube implanter, the stability and efficient implantation of the glaucoma drainage tube are achieved by using the cooperation of the slider and the power component, and the problems of complex implantation process and inconvenient operation in the prior art are solved.
Patent Information
- Application Number
- CN202420524935.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-18
- Publication Date
- 2025-02-25
- Estimated Expiration
- 2034-03-18
AI Technical Summary
The prior art is difficult to effectively implant glaucoma drainage tube into the eyes, and the implantation process is complicated and the operation is inconvenient.
A glaucoma drainage tube implanter is designed, including an outer housing, a needle assembly, a push needle assembly, a power assembly and a slider. The slider slides in the limit groove of the outer shell and drives the power assembly to rotate. The power assembly drives the needle push assembly to push the glaucoma drain tube out of the needle and completely disengages the drain tube through the needle retraction mechanism.
It realizes stable and efficient implantation of glaucoma drainage tube, and is relatively simple to operate, making it easy to implant the drainage tube into the eye and to facilitate removal of the needle.
Smart Images
Figure CN222517142U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of ophthalmic instrument implantation, and in particular to a glaucoma drainage tube implanter. Background Art
[0002] Glaucoma is a common and difficult eye disease that develops rapidly, is highly harmful, and may lead to blindness. The characteristic of glaucoma is that the intraocular pressure intermittently or continuously rises to a level that exceeds the tolerance of the eyeball, causing damage to various tissues and visual functions of the eyeball, leading to optic nerve atrophy, reduced visual field, and decreased vision. Clinically, lowering intraocular pressure is considered to be a relatively effective means of treating glaucoma. Currently, intraocular pressure-lowering eye drops, lasers, surgery and other means are generally used to lower intraocular pressure. With the development and progress of science, some minimally invasive technical means have emerged, such as using gel materials to prepare glaucoma drainage tubes with an inner diameter of tens of microns and an outer diameter of hundreds of microns, and then implanting the glaucoma drainage tubes into the eye through a special implant device.
[0003] Based on this, the present application provides a glaucoma drainage tube implanter. Utility Model Content
[0004] The present application provides a glaucoma drainage tube implanter, which can effectively implant a glaucoma drainage tube into an eye.
[0005] This application is implemented as follows:
[0006] The present application provides a glaucoma drainage tube implanter, comprising:
[0007] An outer shell, wherein the inner part of the outer shell has a receiving cavity, and the surface of the outer shell is provided with a first limiting groove communicating with the receiving cavity along the length direction thereof;
[0008] A needle assembly, the needle assembly comprising a needle, a needle seat and a first connecting piece, the needle is used to insert the glaucoma drainage tube, the needle seat is fixed to the first end of the outer shell, the needle is mounted on the needle seat, the needle seat can move relative to the outer shell along the length direction, the needle is communicated with the accommodating cavity, and the first connecting piece is connected to the needle seat;
[0009] A push needle assembly, the push needle assembly comprising a connected push needle and a second connecting piece, one end of the push needle being disposed in the needle head for pushing out the glaucoma drainage tube; and
[0010] A power assembly and a slider, wherein the power assembly is arranged in the accommodating cavity, the slider is passed through the first limiting groove and is connected to the power assembly, and the first connecting member and the second connecting member both cooperate with the power assembly; the slider slidably cooperates with the first limiting groove and can drive the power assembly to rotate, and when the power assembly rotates, the second connecting member can move in a direction close to the first end, and the first connecting member can move in a direction away from the first end.
[0011] In a possible implementation manner, a first guide groove is provided on the surface of the power component, the first guide groove is arranged in a circumferential spiral along the power component, and one end of the sliding block is arranged in the first guide groove.
[0012] In a possible embodiment, the power assembly is provided with a second guide groove and a third guide groove, the second guide groove has a first guide section and a second guide section, the third guide groove has a third guide section and a fourth guide section, the first guide section is arranged in alignment with the third guide section, the second guide section is arranged in alignment with the fourth guide section, the first guide section and the fourth guide section extend along the circumference of the power assembly, the second guide section and the third guide section are inclined with respect to the circumference of the power assembly, the first connecting member has a first guide block, the second connecting member has a second guide block, the first guide block is limited in the second guide groove and can slide in conjunction with, and the second guide block is limited in the third guide groove and can slide in conjunction with.
[0013] In a possible implementation manner, the inner wall of the outer shell has a limiting sliding groove arranged along the length direction thereof, and the first guide block and the second guide block are limited to move in the limiting sliding groove.
[0014] In a possible embodiment, the power assembly includes a first rotating member and a second rotating member which are separately arranged, the first rotating member is threadedly connected to the first connecting member, the second rotating member is threadedly connected to the second connecting member, the thread rotation directions of the first rotating member and the second rotating member are opposite, and the first connecting member and the second connecting member are restricted from rotating; the second rotating member has a fourth guide groove which is spirally arranged along its circumferential surface, the first rotating member has a fifth guide groove which is spirally arranged along its circumferential surface, one end of the slider is arranged in the fourth guide groove, and the slider moves along the first limiting groove and the fourth guide groove so that when the second rotating member rotates and moves to the end of the fourth guide groove, it can connect to the fifth guide groove and continue to move, and the first rotating member rotates.
[0015] In a possible embodiment, the slider includes a first sliding part and a second sliding part, the outer diameter of the first sliding part is smaller than the outer diameter of the second sliding part, the diameter of the fourth guide groove is smaller than the diameter of the fifth guide groove, the first sliding part can slide in cooperation with the fourth guide groove, and the second sliding part can slide in cooperation with the fifth guide groove.
[0016] In a possible implementation, the second rotating member includes a first rotating cylinder and a connecting cylinder connected to the inner wall of the first rotating cylinder, and the second connecting member is threadedly connected to the connecting cylinder; the first connecting member has a accommodating channel, and the second connecting member is inserted into the accommodating channel.
[0017] In a possible embodiment, the inner wall of the outer shell is provided with a second limiting groove and a third limiting groove, and the second limiting groove and the third limiting groove extend along the length direction of the outer shell; the first connecting member is connected with a first limiting protrusion, and the second connecting member is connected with a second limiting protrusion, the first limiting protrusion is restricted in the second limiting groove and can be slidably fitted, and the second limiting protrusion is restricted in the third limiting groove and can be slidably fitted.
[0018] In a possible implementation manner, the second limiting groove and the third limiting groove are arranged at relative positions on the inner wall of the outer shell.
[0019] In a possible implementation, two opposite sides of the first connecting member are connected to limiting plates, the limiting plates and the surface of the first connecting member form a groove, and the second connecting member is slidably matched with the groove.
[0020] The embodiments of the present application have at least the following beneficial effects:
[0021] The glaucoma drainage tube implanter of the present application slides in the first limiting groove of the outer shell through the slider, and at the same time drives the power assembly to rotate. The power assembly is connected to the first connecting member and the second connecting member. The power assembly rotates and drives the second connecting member to move in the direction close to the first end. Then the second connecting member drives the needle pusher to move to push the glaucoma drainage tube out of the needle head. When the first connecting member moves in the direction away from the first end, it drives the needle seat together with the needle head to retract toward the inside of the outer shell, so that the glaucoma drainage tube can be completely removed from the inside of the needle head, so that the glaucoma drainage tube can be better implanted into the eye, and after the needle head retracts, it is convenient to remove the needle head from the eye. In addition, when the glaucoma drainage tube implanter of the present application is operated, the glaucoma drainage tube can be implanted mainly by sliding the slider along the first limiting groove, which is convenient to operate. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.
[0023] Figure 1 A schematic diagram of a glaucoma drainage tube implanter according to an embodiment of the present application;
[0024] Figure 2 This is a schematic structural diagram of the outer shell of the glaucoma drainage tube implanter according to an embodiment of the present application;
[0025] Figure 3 This is a schematic diagram of the structure of the power assembly, the push-pin assembly and the needle assembly of the embodiment of the present application;
[0026] Figure 4 It is a schematic diagram of the structure of the push-pin assembly and the needle assembly in the first state;
[0027] Figure 5 It is a schematic diagram of the structure of the push-pin assembly and the needle assembly in the second state;
[0028] Figure 6 A schematic diagram of the structure of another power assembly according to an embodiment of the present application;
[0029] Figure 7 A schematic diagram of the structure of a slider according to an embodiment of the present application;
[0030] Figure 8 A schematic diagram of the structure of a slider according to an embodiment of the present application;
[0031] Fig. 9 A schematic structural diagram of another outer shell of the glaucoma drainage tube implanter according to an embodiment of the present application;
[0032] Fig.10 This is a schematic structural diagram of another power assembly, a needle push assembly and a needle assembly according to an embodiment of the present application;
[0033] Fig.11 is a schematic structural diagram of another push-pin assembly and a needle assembly in a first state;
[0034] Fig.12 It is a schematic diagram of the structure of another push-pin assembly and a needle assembly in the second state.
[0035] Icons: 10-glaucoma drainage tube implanter; 11-outer shell; 111-first limiting groove; 112-second limiting groove; 113-third limiting groove; 114-limiting slide; 12-needle assembly; 121-needle; 122-needle seat; 123-first connecting piece; 1231-first guide block; 13-needle push assembly; 131-needle push; 132-second connecting piece; 1321-second guide block; 14-power assembly; 141-first guide groove; 142-second guide groove; 1421-first guide section ;1422-second guide section;143-third guide groove;1431-third guide section;1432-fourth guide section;144-limiting hole;145-first rotating member;1451-fifth guide groove;1453-first limiting protrusion;146-second rotating member;1461-fourth guide groove;1462-first rotating cylinder;1463-connecting cylinder;1464-second limiting protrusion;1471-limiting plate;15-slider;151-first sliding part;152-second sliding part;161-limiting rod. DETAILED DESCRIPTION
[0036] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.
[0037] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.
[0038] In the description of this application, it should be noted that the terms "upper", "lower", "inner", "outer", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the product of the application is usually placed when in use. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.
[0039] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be a connection between the two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.
[0040] Example
[0041] The present application embodiment provides a glaucoma drainage tube implanter 10, please refer to Figure 1-Figure 3 , which includes an outer shell 11, a needle assembly 12, a needle push assembly 13, a power assembly 14 and a slider 15.
[0042] The outer shell 11 has a receiving cavity inside, and the surface of the outer shell 11 is provided with a first limiting groove 111 connected to the receiving cavity along its length direction. The needle assembly 12 includes a needle 121, a needle seat 122 and a first connecting piece 123, wherein the needle 121 is used to insert the glaucoma drainage tube. The outer shell 11 includes a first end and a second end that are relatively arranged along its length direction, the needle seat 122 is fixed to the first end of the outer shell 11, the needle 121 is installed on the needle seat 122, the needle seat 122 can move relative to the outer shell 11 along the length direction, the needle 121 is connected to the receiving cavity, and the first connecting piece 123 is connected to the needle seat 122.
[0043] The push needle assembly 13 comprises a push needle 131 and a second connecting member 132 which are connected. One end of the push needle 131 is disposed in the needle head 121 for pushing out the glaucoma drainage tube.
[0044] The power assembly 14 is arranged in the accommodating cavity, the slider 15 is inserted into the first limiting groove 111 and connected to the power assembly 14, and the first connecting member 123 and the second connecting member 132 are both matched with the power assembly 14. The slider 15 is slidably matched with the first limiting groove 111 and can drive the power assembly 14 to rotate. When the power assembly 14 rotates, the second connecting member 132 can move in a direction close to the first end, and the first connecting member 123 moves in a direction away from the first end. Exemplarily, when the power assembly 14 rotates, the second connecting member 132 first moves in a direction close to the first end, and after the second connecting member 132 stops moving, the first connecting member 123 moves in a direction away from the first end.
[0045] The glaucoma drainage tube implanter 10 of the present application slides along the first limiting groove 111 of the outer shell 11 through the slider 15, and at the same time, the slider 15 drives the power assembly 14 to rotate, and the power assembly 14 is connected to the first connecting member 123 and the second connecting member 132. The power assembly 14 rotates and drives the second connecting member 132 to move in a direction close to the first end, and the second connecting member 132 drives the push needle 131 to move in a direction from the second end to the first end so that the glaucoma drainage tube can be pushed out from the needle head 121 (refer to Figure 4 ), and the first connecting member 123 moves in a direction away from the first end, driving the needle seat 122 and the needle 121 to move in a direction from the first end to the second end, so that the needle 121 retracts into the interior of the outer shell 11 (refer to Figure 5 ), so that the glaucoma drainage tube can be completely removed from the inside of the needle 121, so that the glaucoma drainage tube can be well implanted into the eye, and after the needle 121 retracts, it is convenient to remove the needle 121 from the eye. In addition, when the glaucoma drainage tube implanter 10 of the present application is operated, the glaucoma drainage tube can be implanted mainly by sliding the slider 15 along the first limiting groove 111, which is convenient to operate. Optionally, the outer shell 11 corresponds to the position of the first limiting groove 111, and a scale mark is set along the extension direction of the first limiting groove 111, and the scale mark can be used to know the length of the push needle 131 and the length of the needle 121 retracted.
[0046] For example, the surface of the power assembly 14 is provided with a limiting hole 144, and the glaucoma drainage tube implanter 10 is provided with a limiting rod 161, which is inserted into the limiting hole 144 through the first limiting groove 111, thereby preventing the power assembly 14 from rotating to avoid misoperation. When the glaucoma drainage tube needs to be implanted, the limiting rod 161 can be removed for operation.
[0047] In a possible embodiment, a first guide groove 141 is provided on the surface of the power assembly 14, and the first guide groove 141 is spirally arranged along the circumference of the power assembly 14. One end of the slider 15 is arranged in the first guide groove 141 and slidably cooperates with the first guide groove 141 (refer to Figure 3 ). When the slider 15 is pushed to slide along the first limiting groove 111, the slider 15 is slidably matched with the first guide groove 141 at the same time. The first guide groove 141 is arranged along the circumferential spiral of the power assembly 14. When the slider 15 slides along the first limiting groove 111, it can drive the power assembly 14 to rotate. Exemplarily, a stopper (not shown in the figure) is provided on the inner wall of the outer shell 11 to limit the movement of the power assembly 14 along the length direction of the outer shell 11, so as to better ensure the rotational movement of the power assembly 14.
[0048] Further, the power assembly 14 is provided with a second guide groove 142 and a third guide groove 143, the second guide groove 142 has a first guide section 1421 and a second guide section 1422, and the third guide groove 143 has a third guide section 1431 and a fourth guide section 1432. The first guide section 1421 is arranged in alignment with the third guide section 1431, and the second guide section 1422 is arranged in alignment with the fourth guide section 1432. The first guide section 1421 and the fourth guide section 1432 extend along the circumference of the power assembly 14, and the second guide section 1422 and the third guide section 1431 are both arranged obliquely with the circumference of the power assembly 14, the first connecting member 123 has a first guide block 1231, and the second connecting member 132 has a second guide block 1321, the first guide block 1231 is limited in the second guide groove 142 and can slide and fit, and the second guide block 1321 is limited in the third guide groove 143 and can slide and fit.
[0049] Reference Figure 4 When the power assembly 14 rotates, since the second guide block 1321 is limited in the third guide groove 143, and the third guide groove 143 includes a third guide section 1431 and a fourth guide section 1432, the third guide section 1431 is inclined with respect to the circumference of the power assembly 14, and the distance between the end of the third guide section 1431 connected to the fourth guide section 1432 and the first end is smaller than the distance between the end of the third guide section 1431 connected to the fourth guide section 1432 and the first end, and the fourth guide section 1432 extends along the circumference of the power assembly 14, then in the process of the second guide block 1321 slidingly fitting with the third guide section 1431 to slidingly fitting with the fourth guide section 1432, the third guide section 1431 first causes the second guide block 1321 to move toward the direction close to the first end, and then the fourth guide section 1432 causes the position of the second guide block 1321 to remain unchanged.
[0050] Reference Figure 5 , the first guide block 1231 is limited in the second guide groove 142, and the second guide groove 142 includes a first guide section 1421 and a second guide section 1422, the first guide section 1421 extends along the circumference of the power assembly 14, the second guide section 1422 is inclined with respect to the circumference of the power assembly 14, and the distance between the end of the second section close to the first section and the first end is smaller than the distance between the end of the second section away from the first section and the first end, then in the process of the first guide block 1231 slidingly fitting with the first guide section 1421 to slidingly fitting with the second guide section 1422, the first guide section 1421 first keeps the position of the first guide block 1231 unchanged, and then the second guide section 1422 makes the first guide block 1231 move in the direction away from the first end.
[0051] Among them, when the glaucoma drainage tube implanter 10 is not in use, the first guide block 1231 is located in the first guide segment 1421 of the first guide groove 141, and the second guide block 1321 is located in the third guide segment 1431 of the second guide groove 142. Since the first guide segment 1421 and the third guide segment 1431 are arranged in a corresponding position, and the second guide segment 1422 and the fourth guide segment 1432 are arranged in a corresponding position, when the power component 14 rotates, the position of the first guide block 1231 remains unchanged at first, and the second guide block 1321 moves in a direction close to the first end, and the second connecting member 132 drives the push needle 131 to move and push the glaucoma drainage tube in the needle 121 outward; when the power component 14 continues to rotate, the position of the second guide block 1321 remains unchanged, the first guide block 1231 moves in a direction away from the first end, and the first connecting member 123 drives the needle 121 to retract toward the inside of the outer shell 11.
[0052] Exemplarily, the inner wall of the outer shell 11 has a limiting slide groove 114 arranged along the length direction thereof, and the first guide block 1231 and the second guide block 1321 are limited to move in the limiting slide groove 114. The first guide block 1231 and the second guide block 1321 are limited to move in the length direction of the outer shell 11 by the limiting slide groove 114, so that the push pin 131 and the needle head 121 are stable during the movement.
[0053] In another possible embodiment, the power assembly 14 includes a first rotating member 145 and a second rotating member 146 which are separately arranged (see Figure 6 ), the first rotating member 145 is threadedly connected to the first connecting member 123, the second rotating member 146 is threadedly connected to the second connecting member 132, the first rotating member 145 and the second rotating member 146 have opposite thread rotation directions, and the first connecting member 123 and the second connecting member 132 are restricted from rotating (refer to Fig.10 ).
[0054] The second rotating member 146 has a fourth guide groove 1461 spirally arranged along its circumferential surface, the first rotating member 145 has a fifth guide groove 1451 spirally arranged along its circumferential surface, and one end of the slider 15 is arranged in the fourth guide groove 1461 (refer to Figure 6 ), and the slider 15 moves along the first limiting groove 111 and the fourth guide groove 1461 so that when the second rotating member 146 rotates and moves to the end of the fourth guide groove 1461, it can be connected to the fifth guide groove 1451 to continue moving, and the first rotating member 145 rotates.
[0055] When the glaucoma drainage tube implanter 10 is not in use, one end of the slider 15 is located in the fourth guide groove 1461. When the slider 15 moves along the first limit groove 111 and slides with the fourth guide groove 1461, the second rotating member 146 rotates, and the first rotating member 145 and the second rotating member 146 are separately arranged, and the first rotating member 145 remains stationary. Since the second connecting member 132 threadedly connected to the second rotating member 146 is restricted from rotating, the second rotating member 146 rotates to make the second connecting member 132 move along the length direction of the outer shell 11, and the second connecting member 132 drives the push needle 131 to move to push the glaucoma drainage tube in the needle head 121 outward (refer to Fig.11 ).
[0056] When the slider 15 moves along the first limiting groove 111 and the fourth guide groove 1461 to the end of the fourth guide groove 1461, the slider 15 is connected from the end of the fourth guide groove 1461 into the fifth guide groove 1451. When the slider 15 moves along the first limiting groove 111 and slides with the fifth guide groove 1451, the first rotating member 145 rotates while the second rotating member 146 remains stationary. Since the first connecting member 123 threadedly connected to the first rotating member 145 is restricted from rotating, the first rotating member 145 rotates so that the first connecting member 123 moves along the length direction of the shell, and the first connecting member 123 drives the needle 121 to retract toward the inside of the outer shell 11 (refer to Fig.12 ).
[0057] Exemplarily, the slider 15 includes a first sliding portion 151 and a second sliding portion 152, the outer diameter of the first sliding portion 151 is smaller than the outer diameter of the second sliding portion 152, and the diameter of the fourth guide groove 1461 is smaller than the diameter of the fifth guide groove 1451 (refer to Figure 7 and Figure 8 ), the first sliding portion 151 can be slidably matched with the fourth guide groove 1461, and the second sliding portion 152 can be slidably matched with the fifth guide groove 1451.
[0058] The diameter of the fourth guide groove 1461 is smaller than the diameter of the fifth guide groove 1451, so when the slider 15 moves from the fourth guide groove 1461 to the fifth guide groove 1451, it can be more smoothly connected. In addition, the outer diameter of the first sliding portion 151 is smaller than the outer diameter of the second sliding portion 152, the first sliding portion 151 can be slidably matched with the fourth guide groove 1461, and the second sliding portion 152 can be slidably matched with the fourth guide groove 1461. The first sliding portion 151 and the second sliding portion 152 are respectively slidably matched with the fourth guide groove 1461 and the fifth guide groove 1451, so that the second rotating member 146 and the first rotating member 145 are respectively rotated.
[0059] Exemplarily, the second rotating member 146 includes a first rotating cylinder 1462 and a connecting cylinder 1463 connected to the inner wall of the first rotating cylinder 1462, the second connecting member 132 is threadedly connected to the connecting cylinder 1463, the first connecting member 123 has a receiving channel, and the second connecting member 132 is inserted into the receiving channel. When the first rotating cylinder 1462 rotates, the connecting cylinder 1463 also rotates, and the rotation of the connecting cylinder 1463 drives the second connecting member 132 to move linearly. The second connecting member 132 is inserted into the receiving channel of the first connecting member 123, and will not hinder the movement of the first rotating member 145.
[0060] The inner wall of the outer shell 11 is provided with a second limiting groove 112 and a third limiting groove 113 (refer to Fig. 9 ), the second limiting groove 112 and the third limiting groove 113 extend along the length direction of the outer shell 11, the first connecting member 123 is connected to the first limiting protrusion 1453, and the second connecting member 132 is connected to the second limiting protrusion 1464. The first limiting protrusion 1453 is limited in the second limiting groove 112 and can slide and fit, and the second limiting protrusion 1464 is limited in the third limiting groove 113 and can slide and fit. Since the second limiting groove 112 and the third limiting groove 113 both extend along the length direction of the outer shell 11, the first limiting protrusion 1453 is limited to move along the length direction of the outer shell 11, and the second limiting protrusion 1464 is limited to move along the length direction of the outer shell 11, so that the first connecting member 123 and the second connecting member 132 are more stable when moving along the length direction of the outer shell 11.
[0061] Optionally, the second limiting groove 112 and the third limiting groove 113 are arranged at relative positions on the inner wall of the outer shell 11, so that the first limiting protrusion 1453 and the second limiting protrusion 1464 are less likely to interfere with each other when sliding along the second limiting groove 112 and the third limiting groove 113 respectively.
[0062] In addition, the first connecting member 123 is connected to the limiting plates 1471 on the opposite sides, and the limiting plates 1471 form a groove with the surface of the first connecting member 123, and the second connecting member 132 slides in cooperation with the groove. Therefore, whether the first connecting member 123 moves along the length direction of the outer shell 11 or the second connecting member 132 moves along the length direction of the outer shell 11, since the second connecting member 132 slides in cooperation with the groove and has a limiting effect, the first connecting member 123 and the second connecting member 132 are more stable during movement.
[0063] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. A glaucoma drainage tube implanter, characterized in that: include: An outer shell, wherein the inner part of the outer shell has a receiving cavity, and the surface of the outer shell is provided with a first limiting groove communicating with the receiving cavity along the length direction thereof; A needle assembly, the needle assembly comprising a needle, a needle seat and a first connecting piece, the needle is used to insert the glaucoma drainage tube, the needle seat is fixed to the first end of the outer shell, the needle is mounted on the needle seat, the needle seat can move relative to the outer shell along the length direction, the needle is communicated with the accommodating cavity, and the first connecting piece is connected to the needle seat; A push needle assembly, the push needle assembly comprising a connected push needle and a second connecting piece, one end of the push needle being disposed in the needle head for pushing out the glaucoma drainage tube; as well as A power assembly and a slider, wherein the power assembly is arranged in the accommodating cavity, the slider is passed through the first limiting groove and is connected to the power assembly, and the first connecting member and the second connecting member both cooperate with the power assembly; the slider slidably cooperates with the first limiting groove and can drive the power assembly to rotate, and when the power assembly rotates, the second connecting member can move in a direction close to the first end, and the first connecting member can move in a direction away from the first end.
2. The glaucoma drainage tube implanter according to claim 1, characterized in that: A first guide groove is provided on the surface of the power assembly. The first guide groove is spirally arranged along the circumference of the power assembly. One end of the sliding block is arranged in the first guide groove.
3. The glaucoma drainage tube implanter according to claim 2, characterized in that: The power assembly is provided with a second guide groove and a third guide groove, the second guide groove has a first guide section and a second guide section, the third guide groove has a third guide section and a fourth guide section, the first guide section is aligned with the third guide section, the second guide section is aligned with the fourth guide section, the first guide section and the fourth guide section extend along the circumference of the power assembly, the second guide section and the third guide section are both inclined with respect to the circumference of the power assembly, the first connecting member has a first guide block, the second connecting member has a second guide block, the first guide block is limited in the second guide groove and can slide in conjunction with, the second guide block is limited in the third guide groove and can slide in conjunction with.
4. The glaucoma drainage tube implanter according to claim 3, characterized in that: The inner wall of the outer shell has a limiting sliding groove arranged along the length direction thereof, and the first guide block and the second guide block are limited to move in the limiting sliding groove.
5. The glaucoma drainage tube implanter according to claim 1, characterized in that: The power assembly includes a first rotating member and a second rotating member which are separately arranged, the first rotating member is threadedly connected to the first connecting member, the second rotating member is threadedly connected to the second connecting member, the thread rotation directions of the first rotating member and the second rotating member are opposite, and the first connecting member and the second connecting member are restricted from rotating; the second rotating member has a fourth guide groove which is spirally arranged along its circumferential surface, the first rotating member has a fifth guide groove which is spirally arranged along its circumferential surface, one end of the slider is arranged in the fourth guide groove, and the slider moves along the first limiting groove and the fourth guide groove so that when the second rotating member rotates and moves to the end of the fourth guide groove, it can connect to the fifth guide groove and continue to move, and the first rotating member rotates.
6. The glaucoma drainage tube implanter according to claim 5, characterized in that: The slider includes a first sliding part and a second sliding part, the outer diameter of the first sliding part is smaller than the outer diameter of the second sliding part, the diameter of the fourth guide groove is smaller than the diameter of the fifth guide groove, the first sliding part can slide in cooperation with the fourth guide groove, and the second sliding part can slide in cooperation with the fifth guide groove.
7. The glaucoma drainage tube implanter according to claim 5, characterized in that: The second rotating member includes a first rotating cylinder and a connecting cylinder connected to the inner wall of the first rotating cylinder, and the second connecting member is threadedly connected to the connecting cylinder; the first connecting member has a accommodating channel, and the second connecting member is inserted into the accommodating channel.
8. The glaucoma drainage tube implanter according to claim 7, characterized in that: The inner wall of the outer shell is provided with a second limiting groove and a third limiting groove, and the second limiting groove and the third limiting groove extend along the length direction of the outer shell; the first connecting member is connected with a first limiting protrusion, and the second connecting member is connected with a second limiting protrusion, the first limiting protrusion is restricted in the second limiting groove and can be slidably fitted, and the second limiting protrusion is restricted in the third limiting groove and can be slidably fitted.
9. The glaucoma drainage tube implanter according to claim 8, characterized in that: The second limiting groove and the third limiting groove are arranged at relative positions on the inner wall of the outer shell.
10. The glaucoma drainage tube implanter according to any one of claims 1 to 9, characterized in that: The first connecting member is connected to limiting plates at two opposite sides. The limiting plates and the surface of the first connecting member form a groove, and the second connecting member is slidably matched with the groove.