Cornea wetting device for cataract surgery

Abstract

The invention relates to the technical field of medical instruments, in particular to a cornea wetting device for cataract surgery, which comprises a shell and an injector arranged on one side of the shell, and also comprises a dropper arranged in the shell, the dropper is communicated with the injector, and the injector is filled with wetting liquid; the shaft I is rotationally arranged in the shell and is fixed with one end of the dropper; the device has two operation modes, one operation mode is that a medical worker continuously pushes the injector, then the dropper is deflected out through the deflection assembly to be aligned with the cornea of a patient, and then a large amount of wetting liquid is flushed out through the dropper to conduct continuous flushing operation on the eyes of the patient, and the other operation mode is that in the operation process of the medical worker, the operation efficiency is greatly improved. When the eye wetting device is used, the injector is pushed once, the injection barrel is filled with the wetting liquid, meanwhile, the dropper is driven to deflect out, the piston in the injection barrel moves automatically subsequently, the wetting liquid is squeezed out of the dropper to wet the eyes of a patient, and the eye wetting device is convenient to use and practical.

Description

Technical Field

[0001] The invention relates to the technical field of medical instruments, in particular to a corneal wetting device for cataract surgery. Background Art

[0002] During cataract surgery, the cornea is always exposed to the air. Long-term exposure of the cornea can lead to dryness and turbidity of the corneal epithelium, which in turn affects the patient's visual quality and is not conducive to medical staff performing surgery. Therefore, it is necessary to intermittently drip a moistening solution into the cornea throughout the operation to ensure the moisture and cleanliness of the surgical cornea. At present, the corneal moistening operation of cataract patients generally requires a separate medical staff to perform the operation, that is, the needle end of the syringe with saline solution is directed toward the patient's cornea to drip the solution. This process requires additional medical staff. Another way is to fix the dropper of the moistening solution to the eyelid opener, and the dropper is connected to the saline syringe, and the end of the dropper is adjusted to be aligned directly above the eyeball to facilitate complete infiltration of the eyeball. Although this type of design does not require additional medical staff to operate, the protruding dropper is more likely to interfere with the normal surgical operation of the surgeon, thereby causing inconvenience to the surgical operation. For this reason, we propose a corneal moistening device for cataract surgery. Summary of the invention

[0003] A technical problem to be solved by the present application is: how to design a corneal wetting device that is easy to operate and does not interfere with the operation.

[0004] In order to solve the above technical problems, the embodiment of the present application provides a corneal wetting device for cataract surgery, comprising a housing and a syringe arranged on one side of the housing, and also comprising:

[0005] A dropper is arranged in the housing, the dropper is conductively connected to the syringe, and the syringe is filled with a wetting liquid;

[0006] A shaft 1, rotatably disposed in the housing and fixed to one end of the dropper;

[0007] A deflection assembly is arranged in the housing and connected to the shaft 1 and the syringe. When the syringe is pushed, the shaft 1 is first rotated by the deflection assembly to drive the dropper to deflect and flip out, and then the dropper is used to discharge the wetting liquid;

[0008] The shaking component is arranged on the shell and connected with the shaft one. When the dropper discharges the wetting liquid, the shaking component is used to drive the shaft one to rotate back and forth to drive the dropper to swing.

[0009] In some embodiments, the deflection assembly includes an injection barrel fixedly connected to the housing, a hose is conductively connected between the injection barrel and the syringe, a piston is slidably connected to the injection barrel, a push rod is fixedly connected to the piston, one end of the push rod passes through the injection barrel, a sliding protrusion is fixedly connected to the push rod, a sliding groove is provided on the injection barrel, and one end of the sliding protrusion is located in the sliding groove to guide and limit the movement of the push rod;

[0010] A linkage member is arranged in the housing, and the linkage member is connected to the push rod. When the syringe is pushed, the wetting liquid enters the injection barrel and pushes the piston and the push rod to move, and the linkage member is used to drive the shaft to rotate;

[0011] A valve assembly is arranged in the shell and is used for conducting and connecting the dropper and the injection barrel. The valve assembly works after the push rod moves to the bottom.

[0012] In some embodiments, the linkage member includes a second shaft rotatably connected to the housing, a cylinder is fixedly connected to the second shaft, a helical gear plate is fixedly connected to one end of the second shaft, and the first shaft is also fixedly connected to a helical gear plate, the two helical gear plates are meshed, and when the cylinder is rotated, the first shaft is driven to rotate;

[0013] The cylinder adopts a hollow design and is provided with a torsion spring inside. The torsion spring is sleeved on the second shaft. The two ends of the torsion spring are respectively fixed to the cylinder and the shell. The cylinder is rotated to twist the torsion spring to provide a self-restoring elastic force. A cylindrical convex is provided at one end of the push rod. A guide groove is provided on the cylinder. One end of the cylindrical convex is located in the guide groove. The push rod is pushed to drive the cylindrical convex to slide along the guide groove to drive the cylinder to rotate.

[0014] A guide rod is fixedly connected to the shell, one end of the push rod is fixedly connected to a slide plate, one end of the guide rod slides through the guide rod to guide and limit the movement of the push rod, a spring is sleeved on the guide rod, and the two ends of the spring are respectively in contact with the sliding and the shell to resist, move the push rod and make the spring contract under pressure to provide it with self-restoring elastic force.

[0015] In some embodiments, the guide groove member includes a spiral groove opened on the cylinder, one end of the push rod is fixedly connected to a hollow cylinder, one end of the cylindrical protrusion is located in the hollow cylinder and fixedly connected to a spring 2, one end of the cylindrical protrusion is located in the spiral groove, and when the push rod moves, it drives the cylindrical protrusion to slide along the spiral groove to drive the cylinder to rotate.

[0016] In some embodiments, the shaking assembly includes a wave-shaped sliding groove provided on the cylinder, and the wave-shaped sliding groove is designed to have a greater depth than the spiral groove, and the wave-shaped sliding groove is connected to the spiral groove, and when the push rod is reset and moved, the cylindrical protrusion is driven to slide along the wave-shaped sliding groove, so as to drive the cylinder to reciprocate;

[0017] An arc-shaped transition groove is provided on the cylinder, and the two ends of the arc-shaped transition groove are respectively connected to the spiral groove and the wave-shaped sliding groove. When the torsion spring is reset, it drives the cylinder to rotate and the cylindrical convex slides along the arc-shaped transition groove, and at the same time compresses the spring 2 to provide the cylindrical convex with self-recovery ability.

[0018] In some embodiments, the valve assembly includes a mounting plate fixedly connected to the injection barrel, one end of the shaft 2 passes through the mounting plate and is rotatably connected thereto, one end of the cylinder is tightly against the mounting plate, and the shaft 1 adopts a hollow design, the dropper is connected to the shaft 1, one end of the shaft 1 is rotatably connected to an L-shaped conduit, one end of the L-shaped conduit is fixedly connected to the mounting plate, and a cylindrical guide groove is provided on the cylinder;

[0019] A hose 2 connected to the cylindrical guide groove is provided at one end of the cylinder. The push rod adopts a hollow design, and one end of it is connected to the injection barrel, and the other end is connected to the hose 2. A one-way valve is installed in the hose 1, and the one-way valve only allows liquid to flow into the injection barrel. Moving the push rod drives the cylinder to rotate, so that the cylindrical guide groove is connected to the L-shaped conduit.

[0020] In some embodiments, the dropper is L-shaped, and the liquid outlet end is made of rubber material.

[0021] In some embodiments, a positioning assembly is provided on the housing to mount the device body on the patient's head.

[0022] In some embodiments, the positioning assembly includes a rubber adhesive pad fixedly connected to the bottom of the shell to be adhered to the patient's head.

[0023] In some embodiments, the positioning assembly includes an elastic strap fixedly connected to the housing.

[0024] The present invention has at least the following beneficial effects:

[0025] 1. This device has two operating modes. One is that the medical staff continuously pushes the syringe, and then first deflects the dropper through the deflection assembly, aligns it with the patient's cornea, and then flushes a large amount of wetting liquid through the dropper to continuously flush the patient's eyes. The second is that during the operation, the medical staff only needs to push the syringe once, so that the injection barrel is filled with wetting liquid, and at the same time, the dropper is deflected out. Subsequently, the piston in the injection barrel moves automatically to squeeze the wetting liquid out of the dropper to moisten the patient's eyes, which is more convenient and practical.

[0026] 2. After the device is used, the piston is reset to completely squeeze out the wetting liquid in the injection barrel, and at the same time, the torsion spring is reset to drive the cylinder to rotate, so as to drive the dropper to deflect and retract to one side of the shell, so as not to block the surgical field of view;

[0027] 3. While the dropper is wetting, the cylindrical protrusion on the push rod slides along the wavy sliding groove to drive the cylinder to rotate, thereby driving the dropper to swing left and right to increase the wetting range. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of the present invention;

[0029] Figure 2 For the present invention Figure 1 Schematic diagram of the local cross-section structure;

[0030] Figure 3 For the present invention Figure 2 Another structural diagram;

[0031] Figure 4 For the present invention Figure 3 Schematic diagram of the local cross-section structure;

[0032] Figure 5 For the present invention Figure 4 Schematic diagram of the local cross-section structure;

[0033] Figure 6 For the present invention Figure 5 Schematic diagram of the local cross-section structure;

[0034] Figure 7 This is a structural schematic diagram of Example 2 of the present invention.

[0035] In the figure: 1-housing; 11-syringe; 2-dropper; 3-axis one; 4-deflection assembly; 5-shaking assembly; 41-injection barrel; 42-hose one; 43-piston; 44-push rod; 45-sliding cam; 46-sliding groove; 47-linkage member; 48-valve assembly; 49-axis two; 51-cylinder; 52-bevel gear plate; 53-torsion spring; 54-cylindrical cam; 55-guide groove member; 56-guide rod; 57-slide plate; 58-spring one; 59-spiral groove; 61-hollow cylinder; 62-spring two; 63-wavy sliding groove; 64-arc transition groove; 65-mounting plate; 66-L-shaped guide tube; 67-cylindrical guide groove; 68-hose two; 69-check valve; 71-positioning assembly; 72-rubber adhesive pad; 73-elastic bandage. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] Example 1: Please refer to Figure 1-Figure 6 The present invention provides a technical solution: a corneal wetting device for cataract surgery, comprising a housing 1 and a syringe 11 arranged on one side of the housing 1, and also comprising:

[0038] A dropper 2 is disposed in the housing 1, the dropper 2 is electrically connected to the syringe 11, and the syringe 11 is filled with a wetting liquid;

[0039] A shaft 3 is rotatably disposed in the housing 1 and fixed to one end of the dropper 2;

[0040] The deflection assembly 4 is arranged in the housing 1 and connected to the shaft 13 and the syringe 11. When the syringe 11 is pushed, the deflection assembly 4 is first used to drive the shaft 13 to rotate so as to drive the dropper 2 to deflect and turn out, and then the dropper 2 is used to discharge the wetting liquid;

[0041] A shaking assembly 5 is arranged on the housing 1 and connected to the shaft 1 3. When the dropper 2 discharges the wetting liquid, the shaking assembly 5 drives the shaft 1 3 to reciprocate to drive the dropper 2 to swing;

[0042] When used specifically, the device has two operating modes. One is that the medical staff continuously pushes the syringe 11, and then first deflects the dropper 2 out through the deflection assembly 4, aligns it with the patient's cornea, and then flushes a large amount of wetting liquid through the dropper 2 to continuously flush the patient's eyes. The second is that during the operation, the medical staff only needs to push the syringe 11 once, so that the injection barrel 41 is filled with the wetting liquid, and at the same time, the dropper 2 is deflected out. Subsequently, the piston 43 in the injection barrel 41 automatically moves to squeeze the wetting liquid out of the dropper 2 to moisten the patient's eyes, which is more convenient and practical.

[0043] At the same time, when the device is not in use, the dropper 2 will be deflected and retracted, and will not block the surgical field of view;

[0044] At the same time, the dropper 2 will swing left and right while performing the wetting operation to increase the wetting range.

[0045] The deflection assembly 4 includes an injection barrel 41 fixedly connected to the housing 1, a hose 42 is conductively connected between the injection barrel 41 and the syringe 11, a piston 43 is slidably connected in the injection barrel 41, a push rod 44 is fixedly connected to the piston 43, one end of the push rod 44 slides through the injection barrel 41, a sliding protrusion 45 is fixedly connected to the push rod 44, a sliding groove 46 is provided on the injection barrel 41, one end of the sliding protrusion 45 is located in the sliding groove 46 to guide and limit the movement of the push rod 44;

[0046] A linkage member 47 is provided in the housing 1, and the linkage member 47 is connected to the push rod 44. When the syringe 11 is pushed, the wetting liquid enters the injection barrel 41 and pushes the piston 43 and the push rod 44 to move, and the linkage member 47 drives the shaft 3 to rotate.

[0047] A valve assembly 48 is provided in the housing 1 for conducting and connecting the dropper 2 and the injection barrel 41. The valve assembly 48 works after the push rod 44 moves to the bottom.

[0048] The linkage member 47 includes a shaft 2 49 rotatably connected to the housing 1 through a bearing, a cylinder 51 is fixedly connected to the shaft 2 49, a helical gear plate 52 is fixedly connected to one end of the shaft 2 49, and a helical gear plate 52 is also fixedly connected to the shaft 1 3, the two helical gear plates 52 are meshed, and when the cylinder 51 is rotated, the two helical gear plates 52 cooperate to drive the shaft 1 3 to rotate;

[0049] The cylinder 51 is hollow and has a torsion spring 53 disposed inside it. The torsion spring 53 is sleeved on the second shaft 49. The two ends of the torsion spring 53 are respectively fixedly connected to the cylinder 51 and the housing 1. The cylinder 51 is rotated to twist the torsion spring 53 to provide a self-restoring elastic force. A cylindrical protrusion 54 is disposed at one end of the push rod 44. A guide groove 55 is provided on the cylinder 51. One end of the cylindrical protrusion 54 is located in the guide groove 55. The push rod 44 is pushed to drive the cylindrical protrusion 54 to slide along the guide groove 55, so as to drive the cylinder 51 to rotate.

[0050] A guide rod 56 is fixedly connected to the housing 1, and a slide plate 57 is fixedly connected to one end of the push rod 44. One end of the guide rod 56 slides through the guide rod 56 to guide and limit the movement of the push rod 44. A spring 58 is sleeved on the guide rod 56, and the two ends of the spring 58 are respectively in contact with the sliding and housing 1. The push rod 44 is moved on the guide rod 56 and the spring 58 is compressed and contracted to provide it with self-restoring elastic force.

[0051] The guide groove member 55 includes a spiral groove 59 formed on the cylindrical body 51. One end of the push rod 44 is fixedly connected to a hollow cylinder 61. One end of the cylindrical protrusion 54 is located in the hollow cylinder 61 and is fixedly connected to a spring 2 62. The other end of the spring 2 62 is fixedly connected to the hollow cylinder 61. One end of the cylindrical protrusion 54 is located in the spiral groove 59. When the push rod 44 moves, the cylindrical protrusion 54 is driven to slide along the spiral groove 59 to drive the cylindrical body 51 to rotate.

[0052] The shaking assembly 5 includes a wave-shaped sliding groove 63 formed on the cylindrical body 51, and the wave-shaped sliding groove 63 is designed to have a greater depth than the spiral groove 59. The wave-shaped sliding groove 63 is connected to the spiral groove 59. When the push rod 44 is reset, the cylindrical protrusion 54 is driven to slide along the wave-shaped sliding groove 63, thereby driving the cylindrical body 51 to reciprocate.

[0053] An arc-shaped transition groove 64 is provided on the cylinder 51, and the two ends of the arc-shaped transition groove 64 are respectively connected to the spiral groove 59 and the wave-shaped sliding groove 63. When the torsion spring 53 is reset, it drives the cylinder 51 to rotate and the cylindrical protrusion 54 slides along the arc-shaped transition groove 64. At the same time, the compression spring 2 62 provides the cylindrical protrusion 54 with self-restoring ability.

[0054] The valve assembly 48 includes a mounting plate 65 fixedly connected to the injection barrel 41, one end of the shaft 2 49 passes through the mounting plate 65 and is rotatably connected thereto, and one end of the cylinder 51 is tightly against the mounting plate 65, and the shaft 1 3 is hollow in design, the dropper 2 is connected to the shaft 1 3, one end of the shaft 1 3 is rotatably connected to an L-shaped conduit 66, one end of the L-shaped conduit 66 is fixedly connected to the mounting plate 65, and a columnar guide groove 67 is provided on the cylinder 51;

[0055] A hose 2 68 connected to the cylindrical guide groove 67 is provided at one end of the cylinder 51. The push rod 44 adopts a hollow design, and one end thereof is connected to the injection barrel 41, and the other end is connected to the hose 2 68. A one-way valve 69 is installed in the hose 1 42. The one-way valve 69 only allows liquid to flow into the injection barrel 41. The push rod 44 is moved to drive the cylinder 51 to rotate, so that the cylindrical guide groove 67 is connected to the L-shaped guide tube 66.

[0056] The dropper 2 is L-shaped and its liquid outlet is made of rubber material, so that the liquid outlet of the dropper 2 is closer to the patient's eyes, improving the accuracy of dripping. At the same time, the end of the dropper 2 is made of rubber material to avoid accidentally touching the patient's eyes and reduce damage to the patient.

[0057] A positioning assembly 71 is provided on the housing 1 to mount the device body on the patient's head, specifically to fix the device body to the patient's forehead, thereby eliminating the need for medical staff to hold the device in their hands, which is more convenient and practical.

[0058] The positioning assembly 71 includes a rubber adhesive pad 72 fixedly connected to the bottom of the housing 1, so that when installing the device body, it is only necessary to align the housing 1 with the patient's forehead and stick it with the rubber adhesive pad 72, which is more convenient;

[0059] The specific working principle is that the medical staff pushes the syringe 11 to allow the wetting liquid to be filled into the injection barrel 41 through the hose 1 42. At the same time, the one-way valve 69 in the hose 1 42 prevents the wetting liquid in the injection barrel 41 from flowing back. When the wetting liquid is filled into the injection barrel 41, it will push the piston 43 to move, and then push the push rod 44 to move. The movement of the push rod 44 will drive the hollow cylinder 61 and the cylindrical protrusion 54 to move, so that the cylindrical protrusion 54 will slide along the spiral groove 59 to drive the cylinder 51 to rotate, and then drive the shaft 2 49 to rotate, so that The bevel gear plate 52 is used to drive the shaft 3 to rotate, thereby driving the dropper 2 to deflect and turn out to aim at the patient's eyes. At this time, the piston 43 moves to the bottom, and the cylindrical protrusion 54 is embedded in the wavy sliding groove 63. At the same time, the cylindrical guide groove 67 on the cylinder 51 is connected to the L-shaped guide tube 66. If the medical staff is still pushing the syringe 11 at this time, the wetting liquid in the syringe 11 will pass through the hose 1 42, the injection barrel 41, the push rod 44, the hose 2 68, the cylindrical guide groove 67, the L-shaped guide tube 66, the shaft 3, and the dropper 2 in sequence, thereby wetting the patient's eyes. The liquid will continuously flow out of the dropper 2, and can be used to rinse the patient's eyes. If the medical staff only pushes the syringe 11 for a section and then releases it, the push rod 44 will use the spring 58 to reset and move, thereby driving the piston 43 to move, and the wetting liquid in the injection barrel 41 is squeezed into the dropper 2. At the same time, the movement of the push rod 44 will drive the cylindrical protrusion 54 to move along the wavy sliding groove 63, thereby driving the cylinder 51 to reciprocate. Specifically, the dropper 2 swings back and forth to increase the wetting range. At the same time, the cylinder 5 During the reciprocating rotation, the butt joint area between the L-shaped conduit 66 and the cylindrical guide groove 67 also changes. Specifically, the L-shaped conduit 66 is directly opposite to the cylindrical guide groove 67, then slightly offset to the cylindrical guide groove 67, and then directly opposite to the cylindrical guide groove 67, and repeats this process in sequence, so that the water flow of the dropper 2 is subject to a certain resistance when flowing, and the wetting liquid is prevented from being in a spraying state and causing irritation to the patient's eyes. When the push rod 44 is completely reset, the cylindrical protrusion 54 is also embedded in the arc-shaped transition groove 64. At this time, the torsion spring 53 is reset to drive the cylindrical body 51 to rotate and reset.

[0060] Example 2: Please refer to Figure 1-Figure 7 , the present invention provides a technical solution: Example 2 is another specific implementation of the positioning component 71 in Example 1;

[0061] The positioning assembly 71 includes an elastic strap 73 fixedly connected to the housing 1. When the device body is installed, the housing 1 is fixed to the patient's head through the strap, which is also simple and convenient.

[0062] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0063] While the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the invention.

Claims

1. A corneal wetting device for cataract surgery, comprising a housing (1) and a syringe (11) arranged on one side of the housing (1), characterized in that: Also included are: A dropper (2) is arranged in the housing (1), the dropper (2) is electrically connected to the syringe (11), and the syringe (11) is filled with a wetting liquid; A shaft (3) is rotatably disposed in the housing (1) and fixed to one end of the dropper (2); A deflection assembly (4) is arranged in the housing (1) and connected to the shaft one (3) and the syringe (11). When the syringe (11) is pushed, the deflection assembly (4) is first used to drive the shaft one (3) to rotate so as to drive the dropper (2) to deflect and flip out, and then the dropper (2) is used to discharge the wetting liquid; The shaking assembly (5) is arranged on the housing (1) and connected to the shaft one (3). When the dropper (2) discharges the wetting liquid, the shaking assembly (5) drives the shaft one (3) to reciprocate to drive the dropper (2) to swing.

2. The corneal wetting device for cataract surgery according to claim 1, characterized in that: The deflection assembly (4) comprises an injection barrel (41) fixedly connected to the housing (1), a hose (42) being conductively connected between the injection barrel (41) and the syringe (11), a piston (43) being slidably connected to the injection barrel (41), a push rod (44) being fixedly connected to the piston (43), one end of the push rod (44) passing through the injection barrel (41), a sliding protrusion (45) being fixedly connected to the push rod (44), a sliding groove (46) being provided on the injection barrel (41), one end of the sliding protrusion (45) being located in the sliding groove (46) to guide and limit the movement of the push rod (44); A linkage member (47) is provided in the housing (1), and the linkage member (47) is connected to the push rod (44). When the syringe (11) is pushed, the wetting liquid enters the injection barrel (41) and pushes the piston (43) and the push rod (44) to move, and at the same time, the linkage member (47) is used to drive the shaft (3) to rotate; A valve assembly (48) is arranged in the housing (1) for conducting and connecting the dropper (2) and the injection barrel (41), and the valve assembly (48) works after the push rod (44) moves to the bottom.

3. The corneal wetting device for cataract surgery according to claim 2, characterized in that: The linkage member (47) comprises a second shaft (49) rotatably connected to the housing (1), a cylinder (51) being fixedly connected to the second shaft (49), a helical gear disc (52) being fixedly connected to one end of the second shaft (49), and a helical gear disc (52) being also fixedly connected to the first shaft (3), the two helical gear discs (52) being meshed, and when the cylinder (51) is rotated, the first shaft (3) is driven to rotate; The cylindrical body (51) is hollow in design and is provided with a torsion spring (53) inside. The torsion spring (53) is sleeved on the second shaft (49). The two ends of the torsion spring (53) are respectively fixed to the cylindrical body (51) and the housing (1). The cylindrical body (51) is rotated to twist the torsion spring (53) to provide a self-restoring elastic force. A cylindrical protrusion (54) is provided at one end of the push rod (44). A guide groove (55) is provided on the cylindrical body (51). One end of the cylindrical protrusion (54) is located in the guide groove (55). The push rod (44) is pushed to drive the cylindrical protrusion (54) to slide along the guide groove (55) to drive the cylindrical body (51) to rotate. A guide rod (56) is fixedly connected to the housing (1), and a slide plate (57) is fixedly connected to one end of the push rod (44). One end of the guide rod (56) slides through the guide rod (56) to guide and limit the movement of the push rod (44). A spring (58) is sleeved on the guide rod (56), and the two ends of the spring (58) are respectively in contact with the slide and the housing (1) to move the push rod (44) and compress and contract the spring (58) to provide a self-restoring elastic force for it.

4. The corneal wetting device for cataract surgery according to claim 3, characterized in that: The guide groove member (55) comprises a spiral groove (59) formed on the cylindrical body (51); one end of the push rod (44) is fixedly connected to a hollow cylinder (61); one end of the cylindrical protrusion (54) is located in the hollow cylinder (61) and is fixedly connected to a second spring (62); one end of the cylindrical protrusion (54) is located in the spiral groove (59); when the push rod (44) moves, the cylindrical protrusion (54) is driven to slide along the spiral groove (59) to drive the cylindrical body (51) to rotate.

5. The corneal wetting device for cataract surgery according to claim 4, characterized in that: The shaking assembly (5) comprises a wave-shaped sliding groove (63) provided on the cylindrical body (51), and the wave-shaped sliding groove (63) is designed to have a depth greater than that of the spiral groove (59). The wave-shaped sliding groove (63) is connected to the spiral groove (59). When the push rod (44) is reset, the cylindrical protrusion (54) is driven to slide along the wave-shaped sliding groove (63), thereby driving the cylindrical body (51) to reciprocate. An arc-shaped transition groove (64) is provided on the cylindrical body (51), and two ends of the arc-shaped transition groove (64) are respectively connected to the spiral groove (59) and the wave-shaped sliding groove (63). When the torsion spring (53) is reset, the cylindrical body (51) is driven to rotate and the cylindrical protrusion (54) slides along the arc-shaped transition groove (64), and at the same time, the spring 2 (62) is compressed to provide the cylindrical protrusion (54) with self-restoring ability.

6. The corneal wetting device for cataract surgery according to claim 5, characterized in that: The valve assembly (48) comprises a mounting plate (65) fixedly connected to the injection barrel (41), one end of the shaft 2 (49) passes through the mounting plate (65) and is rotatably connected thereto, one end of the cylinder (51) is tightly against the mounting plate (65), and the shaft 1 (3) is hollow in design, the dropper (2) is connected to the shaft 1 (3), one end of the shaft 1 (3) is rotatably connected to an L-shaped conduit (66), one end of the L-shaped conduit (66) is fixedly connected to the mounting plate (65), and a columnar guide groove (67) is provided on the cylinder (51); A second hose (68) which is in communication with the cylindrical guide groove (67) is provided at one end of the cylindrical body (51); the push rod (44) is hollow in design, and one end of the push rod is in communication with the injection barrel (41), and the other end is in communication with the second hose (68); a one-way valve (69) is installed in the first hose (42); the one-way valve (69) only allows liquid to flow into the injection barrel (41); the push rod (44) is moved to drive the cylindrical body (51) to rotate, so that the cylindrical guide groove (67) is in communication with the L-shaped guide tube (66).

7. The corneal wetting device for cataract surgery according to claim 6, characterized in that: The dropper (2) is designed in an L shape, and its liquid outlet end is designed with a rubber material.

8. The corneal wetting device for cataract surgery according to claim 7, characterized in that: The housing (1) is provided with a positioning assembly (71) for mounting the device body on the patient's head.

9. The corneal wetting device for cataract surgery according to claim 8, characterized in that: The positioning assembly (71) comprises a rubber adhesive pad (72) fixedly connected to the bottom of the housing (1) so as to be adhered to the patient's head.

10. The corneal wetting device for cataract surgery according to claim 8, characterized in that: The positioning assembly (71) comprises an elastic strap (73) fixedly connected to the housing (1).

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