Lacrimal passage minimally invasive drainage support

Abstract

The utility model relates to the technical field of drainage supports, in particular to a lacrimal passage minimally invasive drainage support which comprises a tube body, a probe is installed on the inner side of the tube body, a connecting base is installed at one end of the probe, an injector is connected to one side of the connecting base in a lap joint mode, and the injector is connected with the connecting base in a clamping mode through a locking mechanism. The locking mechanism comprises a butt joint assembly, an abutting assembly, a dragging assembly and a mistaken touch prevention assembly, the butt joint assembly is used for conducting preliminary butt joint on the connecting base and the injector, the abutting assembly is used for locking the position of the connecting base and the position of the injector, the dragging assembly is used for unlocking locking between the connecting base and the injector, and the mistaken touch prevention assembly is used for preventing mistaken touch. The mistaken touch prevention assembly is used for avoiding component loosening caused by mistaken touch. The injector support is simple in structure and convenient to operate, a worker can conveniently and rapidly disassemble and assemble an injector, cleaning and maintaining can be conducted in time, the subsequent using effect is guaranteed, and the practicability of the support is further improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to drainage support technical field, concretely relates to a tearway minimally invasive drainage support. BACKGROUND

[0002] Tear water flows into the nasal cavity through the upper and lower puncta, canaliculi, common canaliculus, lacrimal sac and nasolacrimal duct, and any obstruction in any of the parts will cause symptoms such as epiphora and purulent discharge. At present, lacrimal drainage stent placement can be used. In the operation, the two silicone tube ball heads are respectively inserted into the upper and lower canaliculi from the upper and lower puncta, and then merged at the common canaliculus and inserted into the nasolacrimal duct, after which the lacrimal probe is pulled out, and the silicone tube is left in the canaliculus, and then taken out after 1-3 months to achieve the purpose of dredging the lacrimal passage. However, the existing lacrimal drainage stent has the following disadvantages: the silicone tube ball head is a blind end of the silicone tube, which is soft and thick, and difficult to insert into the punctum; the silicone tube and the probe are non-constrained nested, the probe is easy to break through the silicone tube ball head, and the silicone tube is difficult to reach the predetermined position; the lacrimal probe is a solid core, and cannot be washed during placement to determine the accuracy of the placement position or to inject medicine.

[0003] In order to solve the above technical problems, the existing technology discloses a kind of tearway minimally invasive drainage support with the announcement number CN215915872U: the drainage support includes two hollow drainage tubes, the hollow drainage tube has small diameter end and large diameter end: two the hollow drainage tube large diameter end between connection has solid tube, the solid tube and the hollow drainage tube large diameter end at the connection place of same side is provided with incision: the inner cavity of the hollow drainage tube is provided with the probe nested with it, the probe has sharp head end and wide head end, the sharp head end of the probe is out of the small diameter end of the hollow drainage tube and is limited to cooperate.

[0004] The above-mentioned prior art scheme can determine the accuracy of the placement position, adjust the placement direction at any time, and realize drug injection in the lacrimal passage, but the syringe is directly connected to the connector, and the connector is directly connected to the probe, so it is difficult for personnel to quickly separate the syringe for cleaning and maintenance, thereby affecting the practicability of the device. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a kind of tearway minimally invasive drainage support to solve the problem that the syringe is directly connected to the connector in the above background technology, and the connector is directly connected to the probe, so it is difficult for personnel to quickly separate the syringe for cleaning and maintenance, thereby affecting the practicability of the device.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] The utility model provides a lacrimal passage minimally invasive drainage support, including the inside installation of pipe body is equipped with probe, one end of probe is equipped with connecting seat, one side of connecting seat is overlapped with syringe, one side of syringe is equipped with the lap joint board of overlapping, syringe is connected with connecting seat through locking mechanism, locking mechanism includes docking assembly, abutment assembly, drag component and false touch prevention component, docking assembly is used for carrying out the preliminary docking of connecting seat and syringe, abutment assembly is used for locking the position of connecting seat and syringe, drag component is used for unlocking the locking between connecting seat and syringe, false touch prevention component is used for avoiding the component loosening caused by false touch.

[0008] As the preferred scheme of the utility model, the docking assembly includes a rubber pad embeddedly installed on one side of the outer wall of the lap joint board, a through hole is formed at one end of the rubber pad, a docking block is installed on the outer wall of the lap joint board corresponding to the through hole, a docking groove is formed at one end of the inner wall of the connecting seat, the docking block and the docking groove are in sliding connection, and a mounting groove is formed at one side of the inner wall of the connecting seat corresponding to the docking groove.

[0009] As the preferred scheme of the utility model, a limiting seat is installed at one end of the inner wall of the mounting groove, a first limiting groove is formed at the top end of the limiting seat, a first limiting block is in sliding connection with the inner side of the first limiting groove, and a first spring is installed between the first limiting block and the inner wall of the first limiting groove.

[0010] As the preferred scheme of the utility model, the abutment assembly includes an extrusion block installed at the other end of the first limiting block, first inclined surfaces that are mutually attached are formed at the opposite ends of the extrusion block and the docking block, a retraction groove is formed at the first inclined surface in the inner wall of the extrusion block, a retraction rod is in rotational connection with the inner wall of the retraction groove, a retraction plate is sleeved on the outer wall of the retraction rod, a second inclined surface that is attached to the first inclined surface is formed at one side of the retraction plate, a torsional spring is installed between one end of the retraction rod and the inner wall of the retraction groove, an abutment groove is formed at one end of the docking block, and a flow-through groove is formed at the other end of the rubber pad.

[0011] As the preferred scheme of the utility model, the drag component includes a groove formed at one side of the extrusion block, a pull plate is installed in the groove, the pull plate and the connecting seat are in sliding connection, an operation groove is formed at one side of the outer wall of the connecting seat, a drag groove is formed in the inner wall of the connecting seat between the mounting groove and the operation groove, and the pull plate and the drag groove are in sliding connection.

[0012] As the preferred scheme of the utility model, a bottom plate is installed at one side of the pull plate extending to the inner side of the operation groove, a magnetic block is embeddedly installed on one side of the bottom plate, and an iron block that is attracted to the magnetic block is embeddedly installed on the inner wall of the operation groove.

[0013] The side of the outer wall of the syringe is embeddedly provided with an observation window, and the outer wall of the observation window is provided with a scale bar.

[0014] Compared with the prior art, the utility model has the beneficial effects that:

[0015] In the utility model, the connecting seat and the syringe are initially docked through the docking assembly, the position of the connecting seat and the syringe is locked through the abutting assembly, the locking between the connecting seat and the syringe is released through the dragging assembly, the false touch prevention assembly avoids the false touch from causing the components to be loose, the structure is simple, the operation is convenient, the syringe can be quickly disassembled and assembled by the staff, so that timely cleaning and maintenance are carried out, the follow-up use effect is guaranteed, and the practicability of the support is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a whole structure schematic view of the utility model;

[0017] Figure 2 It is a connecting seat local three-dimensional structure schematic view of the utility model;

[0018] Figure 3 It is a locking mechanism local section view structure schematic view of the utility model.

[0019] In the drawing: 1, pipe body; 2, probe; 3, connecting seat; 4, syringe; 5, docking block; 6, limiting seat; 7, first limiting block; 8, first spring; 9, extrusion block; 10, first slope; 11, retraction plate; 12, torsion spring; 13, pull plate; 14, bottom plate; 15, magnetic block; 16, lapping plate; 17, rubber pad; 18, observation window. DETAILED DESCRIPTION

[0020] The technical scheme in the embodiments of the utility model will be clearly and completely described in combination with the embodiments of the utility model, and apparently, the described embodiments are only part of the embodiments of the utility model, not all the embodiments, based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0021] Embodiment:

[0022] Please refer to Figures 1-3 The utility model provides a technical scheme:

[0023] The utility model provides a lacrimal passage minimally invasive drainage support, including the tubular body 1, the inside installation of tubular body 1 is equipped with probe 2, and one end of probe 2 is equipped with connecting seat 3, and the one side of connecting seat 3 is overlapped with syringe 4, and the one side of syringe 4 is equipped with the overlapped plate 16, and syringe 4 is connected with connecting seat 3 through locking mechanism, and locking mechanism includes docking assembly, abutting assembly, dragging assembly and false touch prevention assembly, docking assembly is used to carry out the preliminary docking of connecting seat 3 and syringe 4, abutting assembly is used to lock the position of connecting seat 3 and syringe 4, dragging assembly is used to unlock the locking between connecting seat 3 and syringe 4, false touch prevention assembly is used to avoid the component loosening caused by false touch, the support can carry out the preliminary docking of connecting seat 3 and syringe 4 through docking assembly when using, abutting assembly locks the position of connecting seat 3 and syringe 4, and dragging assembly unlocks the locking between connecting seat 3 and syringe 4, and false touch prevention assembly avoids the component loosening caused by false touch, simple structure, convenient operation, syringe 4 is quickly disassembled for staff, so as to clean and maintain in time, guarantee the use effect of subsequent, further improve the practicality of support.

[0024] In the embodiment, as shown in Figure 1 、 Figure 2 and Figure 3 , the docking assembly includes a rubber pad 17 embeddedly installed on one side of the outer wall of the overlapped plate 16, a through hole is formed at one end inside the rubber pad 17, a docking block 5 is installed on the outer wall of the overlapped plate 16 corresponding to the through hole, a docking groove is formed at one end inside the connecting seat 3, the docking block 5 is in sliding connection with the docking groove, and a mounting groove is formed at one side of the connecting seat 3 inside the docking groove. First, when the syringe 4 is installed, it can be preliminarily overlapped with the connecting seat 3, so that the connecting seat 3 and the rubber pad 17 are attached, the docking block 5 enters the inside of the docking groove at the same time, and the rubber pad 17 is continuously pressed to be compressed, the docking block 5 is in contact with the two groups of extrusion blocks 9, and the opposite first inclined surfaces 10 are extruded.

[0025] In the embodiment, as shown in Figure 1 、 Figure 2 and Figure 3As shown, the inner wall of the mounting groove is provided with a limiting seat 6 at one end, a first limiting groove is formed at the top end of the limiting seat 6, a first limiting block 7 is slidably connected in the first limiting groove, a first spring 8 is arranged between the first limiting block 7 and the inner wall of the first limiting groove, the abutting assembly comprises an extrusion block 9 arranged at the other end of the first limiting block 7, first inclined surfaces 10 are formed at the opposite ends of the abutting block 5 and the extrusion block 9, a retraction groove is formed in the interior of the extrusion block 9 at the first inclined surface 10, a retraction rod is rotatably connected in the retraction groove, a retraction plate 11 is sleeved on the outer side of the retraction rod, a second inclined surface is formed at one side of the retraction plate 11 and abuts against the first inclined surface 10, a torsional spring 12 is arranged between one end of the retraction rod and the inner wall of the retraction groove, an abutting groove is formed at one end of the abutting block 5, and a flow-through groove is formed at the other end in the interior of the rubber pad 17. Then, the first limiting block 7 moves in the first limiting groove and extrudes the first spring 8, the abutting block 5 continues to be pressed down to contact the first inclined surface 10 of the retraction plate 11 to press the second inclined surface, so that the retraction plate 11 drives the retraction rod to extrude the torsional spring 12 to retract, until the abutting groove is aligned with the retraction groove, the retraction plate 11 is ejected by the torsional spring 12, at this time, the connecting seat 3 is released, the rubber pad 17 rebounds to drive one end of the abutting groove to abut against the retraction plate 11, and the locking is completely completed.

[0026] In the embodiment, as shown in Figure 1 、 Figure 2 and Figure 3 , the dragging assembly comprises a groove formed at one side of the extrusion block 9, a pull plate 13 is arranged in the groove, the pull plate 13 is slidably connected with the connecting seat 3, an operation groove is formed at one side of the outer wall of the connecting seat 3, a dragging groove is formed in the interior of the connecting seat 3 between the mounting groove and the operation groove, the pull plate 13 is slidably connected with the dragging groove, a bottom plate 14 is arranged at one side of the pull plate 13 extending to the interior of the operation groove, a magnetic block 15 is embedded and arranged on one side of the bottom plate 14, an iron block is embedded and arranged on the inner wall of the operation groove and is attracted to the magnetic block 15. Further, when it is needed to unlock and clean and maintain, the pull plate 13 can be moved in the dragging groove first, the extrusion block 9 is dragged to actively move away from the abutting block 5, the retraction plate 11 on the extrusion block 9 also moves away from the interior of the abutting groove to release the abutting state, at this time, the rubber pad 17 starts to rebound due to the disappearance of the resistance, the abutting block 5 is lifted by a distance, at this time, the pull plate 13 is not controlled and will not be re-coupled, after re-locking, the pull plate 13 and the bottom plate 14 are reset, the magnetic block 15 on the bottom plate 14 is also attracted to the iron block to strengthen the positioning effect, so as to prevent the pull plate 13 from being easily moved to cause the parts to be loose.

[0027] In the embodiment, as shown in Figure 1 、 Figure 2 and Figure 3As shown, one side of the outer wall of the syringe 4 is embedded with an observation window 18, and the outer wall of the observation window 18 is marked with a scale bar.

[0028] The implementation principle of the tear duct minimally invasive drainage stent according to the embodiment of the application is as follows: when the syringe 4 is installed, the syringe 4 is preliminarily overlapped with the connecting seat 3, the connecting seat 3 is attached to the rubber pad 17, the abutting block 5 enters the abutting groove, the rubber pad 17 is continuously pressed and compressed, the abutting block 5 is in contact with the two groups of extrusion blocks 9, the opposite first slope surfaces 10 are extruded, the first limiting block 7 is moved in the first limiting groove and extrudes the first spring 8, the abutting block 5 is continuously pressed and in contact with the retraction plate 11, the first slope surface 10 presses the second slope surface, the retraction plate 11 drives the retraction rod to extrude the torsion spring 12 to retract, until the abutting groove is aligned with the retraction groove, the retraction plate 11 is ejected by the torsion spring 12, the connecting seat 3 is released at this time, the rubber pad 17 rebounds to abut the abutting groove with one end of the retraction plate 11, and the locking is completely completed, when the locking needs to be unlocked for cleaning and maintenance, the pull plate 13 can be first moved in the trailing groove, the trailing extrusion block 9 actively moves away from the abutting block 5, and the retraction plate 11 on the trailing extrusion block 9 also moves away from the abutting groove to release the abutting state, at this time, the rubber pad 17 starts to rebound due to the disappearance of resistance, the abutting block 5 rises by a distance, at this time, the pull plate 13 is not controlled and the reconnection state does not appear, after the reconnection, the pull plate 13 and the bottom plate 14 are reset, the magnetic block 15 on the bottom plate 14 is also adsorbed with the iron block to strengthen the positioning effect, so as to prevent the pull plate 13 from being easily moved to cause the components to be loosened, after the liquid medicine is sucked into the syringe 4, the scale bar marked on the observation window 18 can be used to judge the remaining liquid medicine amount, so as to be added in time.

[0029] Although the embodiments of the application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the application, the scope of the application is defined by the appended claims and their equivalents.

Claims

1. A lacrimal minimally invasive drainage stent comprising a tube body (1), characterized in that: The inner side of the pipe body (1) is provided with a probe (2), one end of the probe (2) is provided with a connecting seat (3), one side of the connecting seat (3) is overlapped with a syringe (4), one side of the syringe (4) is provided with an overlapping plate (16), the syringe (4) is clamped with the connecting seat (3) through a locking mechanism, the locking mechanism comprises a docking assembly, an abutting assembly, a dragging assembly and a mistaken touch prevention assembly, the docking assembly is used for preliminary docking of the connecting seat (3) and the syringe (4), the abutting assembly is used for locking the positions of the connecting seat (3) and the syringe (4), the dragging assembly is used for unlocking the connecting seat (3) and the syringe (4), and the mistaken touch prevention assembly is used for avoiding the component loosening caused by mistaken touch.

2. The lacrimal duct minimally invasive drainage stent according to claim 1, characterized in that: The docking assembly comprises a rubber pad (17) embeddedly installed on one side of the outer wall of the overlapping plate (16), a through hole is formed in one end of the rubber pad (17), a docking block (5) is installed on the outer wall of the overlapping plate (16) corresponding to the through hole, a docking groove is formed in one end of the connecting seat (3), the docking block (5) and the docking groove are in sliding connection, and a mounting groove is formed in one side of the connecting seat (3) located at the docking groove.

3. The lacrimal duct minimally invasive drainage stent according to claim 2, characterized in that: A limiting seat (6) is installed on one end of the inner wall of the mounting groove, a first limiting groove is formed in the top end of the limiting seat (6), a first limiting block (7) is in sliding connection with the inner side of the first limiting groove, and a first spring (8) is installed between the first limiting block (7) and the inner wall of the first limiting groove.

4. The lacrimal duct minimally invasive drainage stent according to claim 3, characterized in that: The abutting assembly comprises an extrusion block (9) installed on the other end of the first limiting block (7), first slope surfaces (10) that are mutually fitted are formed in the opposite ends of the extrusion block (9) and the docking block (5), a retraction groove is formed in the inside of the extrusion block (9) at the first slope surface (10), a retraction rod is rotatably connected to the inner side of the retraction groove, a retraction plate (11) is sleeved on the outer side of the retraction rod, a second slope surface that is fitted with the first slope surface (10) is formed in one side of the retraction plate (11), a torsional spring (12) is installed between one end of the retraction rod and the inner wall of the retraction groove, an abutting groove is formed in one end of the docking block (5), and a flow-through groove is formed in the other end of the rubber pad (17).

5. The lacrimal duct minimally invasive drainage stent according to claim 4, characterized in that: The dragging assembly comprises a groove formed in one side of the extrusion block (9), a pull plate (13) is installed in the inner side of the groove, the pull plate (13) is in sliding connection with the connecting seat (3), an operation groove is formed in one side of the outer wall of the connecting seat (3), a dragging groove is formed in the connecting seat (3) between the mounting groove and the operation groove, and the pull plate (13) is in sliding connection with the dragging groove.

6. The lacrimal duct minimally invasive drainage stent according to claim 5, characterized in that: One side of the pull plate (13) extending to the inner side of the operation groove is provided with a bottom plate (14), one side of the bottom plate (14) is embeddedly provided with a magnetic block (15), and an iron block that is adsorbed with the magnetic block (15) is embeddedly installed on the inner wall of the operation groove.

7. The lacrimal duct minimally invasive drainage stent according to claim 6, characterized in that: One side of the outer wall of the syringe (4) is embeddedly provided with an observation window (18), and a scale bar is printed on the outer wall of the observation window (18).

Images