A multi-size lacrimal passage stent testing device

Abstract

The utility model relates to tear duct support test technical field discloses a kind of multi-size tear duct support testing device, including bottom plate, the upper surface of the bottom plate is fixedly connected with test bench, the upper surface of the test bench is fixedly connected with limit box, the upper surface of the limit box is fixedly connected with motor, the output end of the motor is fixedly provided with screw rod, the outer wall of the screw rod is threadedly connected with sliding block, the outer wall of the sliding block is fixedly connected with limit frame, the inside of the limit frame is slidably connected with slide post, the outer wall of the slide post is fixedly connected with fixed plate, the upper surface of the bottom plate is provided with limit assembly. In the utility model, the effect that torque test is carried out to tear duct support is achieved by starting motor to drive screw rod rotation, by limit plate, sliding block, limit frame, slide post, fixed plate, bolt, test bench and limit box, so as to test the deformation resistance of support, more comprehensively test the performance of support.

Description

Technical Field

[0001] This utility model relates to the field of lacrimal duct stent testing technology, and in particular to a multi-size lacrimal duct stent testing device. Background Technology

[0002] A lacrimal duct stent is a medical device used to treat lacrimal duct obstruction. The stent is placed within the blocked lacrimal duct to provide support, thus maintaining its patency and allowing tears to drain normally, relieving symptoms such as epiphora. Applying a torsional torque to the stent helps to understand whether it can maintain its structural integrity and function properly in the complex physiological environment of the lacrimal duct; therefore, a multi-size lacrimal duct stent testing device is needed.

[0003] The multi-size lacrimal duct stent testing device is a device for testing the performance of lacrimal duct stents. In previous technologies, when testing lacrimal duct stents, only the size and elasticity of the stents were usually tested, which may result in an incomplete test. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a multi-size lacrimal duct stent testing device, which aims to improve the problem that the testing of lacrimal duct stents usually only involves simple size and elasticity tests, which is not comprehensive enough.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a multi-size lacrimal duct stent testing device, comprising a base plate, a testing platform fixedly connected to the upper surface of the base plate, a limiting box fixedly connected to the upper surface of the testing platform, a motor fixedly connected to the upper surface of the limiting box, a lead screw fixedly provided at the output end of the motor, the outer wall of the lead screw rotatably connected to the inside of the limiting box, a sliding block threadedly connected to the outer wall of the lead screw, a limiting plate slidably connected to the inside of the sliding block, the outer wall of the limiting plate fixedly connected to the inside of the limiting box, a limiting frame fixedly connected to the outer wall of the sliding block, the outer wall of the limiting frame slidably connected to the inside of the limiting box, a sliding column slidably connected to the inside of the limiting frame, the outer wall of the sliding column slidably connected to the inside of the limiting box, a fixing plate fixedly connected to the outer wall of the sliding column, a bolt threadedly connected to the inside of the fixing plate, and a limiting assembly provided on the upper surface of the base plate.

[0006] Preferably, the limiting component includes a fixed box, the lower surface of which is fixedly connected to the upper surface of the test bench, and a limiting post is fixedly connected inside the fixed box.

[0007] Preferably, a mechanical box is fixedly connected to the upper surface of the base plate, a hydraulic rod is fixedly connected inside the mechanical box, and a connecting block is fixedly connected to the output end of the hydraulic rod.

[0008] Preferably, the connecting block has a sliding connection of a limiting strip inside, and the lower surface of the limiting strip is fixedly connected to the upper surface of the base plate.

[0009] Preferably, a fixed shaft is fixedly connected inside the connecting block, and a rotating plate is rotatably connected to the outer wall of the fixed shaft.

[0010] Preferably, the rotating plate is rotatably connected to a rotating shaft inside, and a slider is fixedly connected to the outer wall of the rotating shaft.

[0011] Preferably, the slider has a sliding connection to a limiting block inside, the outer wall of the limiting block is fixedly connected to the outer wall of the test platform, and the lower surface of the limiting block is fixedly connected to the upper surface of the base plate.

[0012] Preferably, a clamping block is fixedly connected to the outer wall of the slider, and the outer wall of the clamping block is slidably connected to the upper surface of the test platform.

[0013] This utility model has the following beneficial effects:

[0014] 1. In this utility model, the starting motor drives the lead screw to rotate, and the limiting plate, sliding block, limiting frame, sliding column, fixing plate, bolt, test table and limiting box can achieve the effect of torque testing on the lacrimal duct stent, so as to test the stent's resistance to deformation and more comprehensively test the stent's performance.

[0015] 2. In this utility model, the connecting block can be slid by activating the hydraulic rod. The mutual cooperation between the limiting strip, the fixed shaft, the rotating plate, the rotating shaft, the slider, the clamping block and the limiting block can achieve the effect of clamping and fixing the lacrimal duct stent, so as to avoid the stent from shifting during testing and affecting the test results. Attached Figure Description

[0016] Figure 1 This is a perspective view of a multi-size lacrimal duct stent testing device proposed in this utility model;

[0017] Figure 2 This is a partial structural diagram of the test platform for a multi-size lacrimal duct stent testing device proposed in this utility model;

[0018] Figure 3 This is a partial structural diagram of the limiting column of a multi-size lacrimal duct stent testing device proposed in this utility model;

[0019] Figure 4 This is a cross-sectional view of the internal structure of the mechanical box of a multi-size lacrimal duct stent testing device proposed in this utility model.

[0020] Legend:

[0021] 1. Base plate; 2. Test bench; 3. Limit box; 4. Motor; 5. Lead screw; 6. Limit plate; 7. Sliding block; 8. Limit frame; 9. Sliding column; 10. Fixing plate; 11. Bolt; 12. Fixing box; 13. Limit column; 14. Mechanical box; 15. Hydraulic rod; 16. Connecting block; 17. Limit strip; 18. Fixing shaft; 19. Rotating plate; 20. Rotating shaft; 21. Slider; 22. Clamping block; 23. Limit block. Detailed Implementation

[0022] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0023] Reference Figure 1 , Figure 2 and Figure 3 This utility model provides an embodiment of a multi-size lacrimal duct stent testing device, comprising a base plate 1, a test platform 2 fixedly connected to the upper surface of the base plate 1, a limit box 3 fixedly connected to the upper surface of the test platform 2, a motor 4 fixedly connected to the upper surface of the limit box 3, a lead screw 5 fixedly installed at the output end of the motor 4, the outer wall of the lead screw 5 rotatably connected to the inside of the limit box 3, a sliding block 7 threadedly connected to the outer wall of the lead screw 5, a limit plate 6 slidably connected to the inside of the sliding block 7, the outer wall of the limit plate 6 fixedly connected to the inside of the limit box 3, a limit frame 8 fixedly connected to the outer wall of the sliding block 7, the outer wall of the limit frame 8 slidably connected to the inside of the limit box 3, a sliding column 9 slidably connected to the inside of the limit frame 8, the outer wall of the sliding column 9 slidably connected to the inside of the limit box 3, a fixing plate 10 fixedly connected to the outer wall of the sliding column 9, and a bolt 11 threadedly connected to the inside of the fixing plate 10. A limit assembly is provided on the upper surface of the base plate 1.

[0024] Specifically, the base plate 1 fixes the test platform 2, which in turn fixes the limiting box 3. The limiting box 3 has an arc-shaped groove inside for limiting movement. The limiting box 3 also fixes the motor 4. Starting the motor 4 drives the lead screw 5 to rotate, which in turn drives the sliding block 7 to slide on the outer wall of the limiting plate 6. The limiting plate 6 limits the sliding block 7, which in turn drives the limiting frame 8 to slide inside the limiting box 3. The limiting frame 8 drives the sliding column 9 to slide inside the limiting frame 8, and simultaneously drives the sliding column 9 to slide in the arc-shaped groove inside the limiting box 3. The sliding column 9 drives the fixed plate 10 to move. The fixed plate 10 has a lacrimal duct support fixed inside by bolts 11. When the fixed plate 10 moves, it can drive the lacrimal duct support to rotate, achieving the effect of elasticity testing of the lacrimal duct support and testing its resistance to deformation.

[0025] Reference Figure 3 The limiting component includes a fixed box 12, the lower surface of which is fixedly connected to the upper surface of the test bench 2, and a limiting post 13 is fixedly connected inside the fixed box 12.

[0026] Specifically, the test platform 2 fixes the fixed box 12, the fixed box 12 limits the sliding column 9, the fixed box 12 fixes the limiting column 13, and the limiting column 13 limits the sliding block 7.

[0027] Reference Figure 4 A mechanical box 14 is fixedly connected to the upper surface of the base plate 1. A hydraulic rod 15 is fixedly connected inside the mechanical box 14. A connecting block 16 is fixedly connected to the output end of the hydraulic rod 15. A limit strip 17 is slidably connected inside the connecting block 16. The lower surface of the limit strip 17 is fixedly connected to the upper surface of the base plate 1. A fixed shaft 18 is fixedly connected inside the connecting block 16. A rotating plate 19 is rotatably connected to the outer wall of the fixed shaft 18. A rotating shaft 20 is rotatably connected inside the rotating plate 19. A slider 21 is fixedly connected to the outer wall of the rotating shaft 20. A limit block 23 is slidably connected inside the slider 21. The outer wall of the limit block 23 is fixedly connected to the outer wall of the test platform 2. The lower surface of the limit block 23 is fixedly connected to the upper surface of the base plate 1. A clamping block 22 is fixedly connected to the outer wall of the slider 21. The outer wall of the clamping block 22 is slidably connected to the upper surface of the test platform 2.

[0028] Specifically, the base plate 1 fixes the mechanical housing 14, which in turn fixes the hydraulic rod 15. Activating the hydraulic rod 15 causes the connecting block 16 to slide on the outer wall of the limiting strip 17. The connecting block 16 then moves the fixed shaft 18, which in turn rotates the rotating plate 19. The rotating plate 19 then moves the rotating shaft 20, which in turn moves the slider 21 on the outer wall of the limiting block 23. The limiting block 23 limits the slider 21. The slider 21 then moves the clamping block 22 to clamp and fix the lacrimal duct stent, preventing the stent from shifting during testing and affecting the test results.

[0029] Working principle: When the testing device is needed, the lacrimal duct stent to be tested is first placed on the upper surface of the test table 2 and fixed. By activating the hydraulic rod 15, the connecting block 16 can be driven to slide on the outer wall of the limiting strip 17, thereby driving the rotating plate 19 to rotate on the outer wall of the fixed shaft 18 and the rotating shaft 20. At the same time, the slider 21 is driven to slide on the outer wall of the limiting block 23, thereby driving the clamping block 22 to clamp and fix the lacrimal duct stent for subsequent elasticity testing.

[0030] By sliding one end of the lacrimal duct support into the interior of the fixing plate 10, and fixing one end of the lacrimal duct support by rotating the bolt 11, the motor 4 can drive the lead screw 5 to rotate, thereby causing the sliding block 7 to slide on the outer wall of the limiting plate 6, which in turn causes the limiting frame 8 to slide inside the limiting box 3, and simultaneously causes the sliding column 9 to slide inside the limiting frame 8, which in turn causes the sliding column 9 to slide inside the limiting box 3, while also moving the fixing plate 10, thus achieving the effect of bending the lacrimal duct support to test its elasticity and resistance to deformation. This device can not only fix the lacrimal duct support to prevent displacement during testing, but also test the lacrimal duct support's resistance to deformation.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A multi-size lacrimal duct stent testing device, comprising a base plate (1), characterized in that: A test platform (2) is fixedly connected to the upper surface of the base plate (1). A limit box (3) is fixedly connected to the upper surface of the test platform (2). A motor (4) is fixedly connected to the upper surface of the limit box (3). A lead screw (5) is fixedly installed at the output end of the motor (4). The outer wall of the lead screw (5) is rotatably connected to the inside of the limit box (3). A sliding block (7) is threadedly connected to the outer wall of the lead screw (5). A limit plate (6) is slidably connected inside the sliding block (7). The outer wall of the limit plate (6) is fixed. The sliding block (7) is connected to the inside of the limiting box (3). The outer wall of the sliding block (7) is fixedly connected to the limiting frame (8). The outer wall of the limiting frame (8) is slidably connected to the inside of the limiting box (3). The inside of the limiting frame (8) is slidably connected to the sliding column (9). The outer wall of the sliding column (9) is slidably connected to the inside of the limiting box (3). The outer wall of the sliding column (9) is fixedly connected to the fixing plate (10). The inside of the fixing plate (10) is threaded with bolts (11). The upper surface of the base plate (1) is provided with a limiting component.

2. The multi-size lacrimal duct stent testing device according to claim 1, characterized in that: The limiting component includes a fixed box (12), the lower surface of which is fixedly connected to the upper surface of the test bench (2), and a limiting post (13) is fixedly connected inside the fixed box (12).

3. The multi-size lacrimal duct stent testing device according to claim 1, characterized in that: A mechanical box (14) is fixedly connected to the upper surface of the base plate (1), and a hydraulic rod (15) is fixedly connected inside the mechanical box (14). A connecting block (16) is fixedly connected to the output end of the hydraulic rod (15).

4. The multi-size lacrimal duct stent testing device according to claim 3, characterized in that: The connecting block (16) has a sliding connection to a limiting strip (17), and the lower surface of the limiting strip (17) is fixedly connected to the upper surface of the base plate (1).

5. The multi-size lacrimal duct stent testing device according to claim 3, characterized in that: The connecting block (16) is internally fixedly connected to a fixed shaft (18), and the outer wall of the fixed shaft (18) is rotatably connected to a rotating plate (19).

6. The multi-size lacrimal duct stent testing device according to claim 5, characterized in that: The rotating plate (19) is rotatably connected to a rotating shaft (20), and a slider (21) is fixedly connected to the outer wall of the rotating shaft (20).

7. The multi-size lacrimal duct stent testing device according to claim 6, characterized in that: The slider (21) is internally connected to a limiting block (23), the outer wall of the limiting block (23) is fixedly connected to the outer wall of the test platform (2), and the lower surface of the limiting block (23) is fixedly connected to the upper surface of the base plate (1).

8. The multi-size lacrimal duct stent testing device according to claim 6, characterized in that: The outer wall of the slider (21) is fixedly connected to a clamping block (22), and the outer wall of the clamping block (22) is slidably connected to the upper surface of the test bench (2).

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