Hydrophilic coating coating equipment for medical catheter

Abstract

The utility model relates to coating equipment, and discloses hydrophilic coating coating equipment for medical catheters, which comprises a dip-coating module, a lifting module and a curing module, the dip-coating module comprises a moving frame and a horizontal driving device, a solution tube is mounted on the moving frame, the horizontal driving device is in driving connection with the moving frame, and the lifting module is connected with the curing module. The lifting module comprises a lifting driving device, a rotating assembly and a mounting frame, the mounting frame is used for mounting a medical catheter and connected with the lifting driving device, the rotating assembly is used for driving the medical catheter to rotate, the mounting frame is located above the dip-coating module, the curing module comprises an ultraviolet lamp set, and the ultraviolet lamp set is located on the side face of the lifting module. According to the utility model, the hydrophilic coating can be efficiently and uniformly formed on the medical catheter.

Description

Technical Field

[0001] The utility model relates to coating equipment, in particular to hydrophilic coating equipment for medical catheters. Background Art

[0002] Medical catheters are tubular rubber products used in medical treatment, mainly playing an auxiliary role in the medical process. For example, they are used for urinary catheterization and drainage. Balloon dilation catheters can assist in expanding the lumen and facilitating blood flow.

[0003] For medical catheters inserted into the human body, in order to reduce friction during use, reduce damage to human tissues, and improve their hydrophilicity, a hydrophilic coating is usually applied to the outside of the medical catheter. The equipment for completing the hydrophilic coating generally needs to complete two processes: dip coating and curing.

[0004] In current coating equipment, it is difficult to ensure that the hydrophilic polymer adheres evenly to the surface of the medical catheter. Summary of the Utility Model

[0005] Therefore, there is a need to provide hydrophilic coating equipment for medical catheters that can uniformly cure the hydrophilic coating on the medical catheter.

[0006] To achieve the above object, the utility model provides a hydrophilic coating equipment for medical catheters, comprising:

[0007] A dip coating module, which includes a moving frame and a horizontal driving device. A solution pipe is installed on the moving frame, and the horizontal driving device is drivingly connected to the moving frame.

[0008] A lifting module, which includes a lifting driving device, a rotating assembly, and a mounting frame. The mounting frame is used to mount the medical catheter. The mounting frame is connected to the lifting driving device, and the rotating assembly is used to drive the medical catheter to rotate. The mounting frame is located above the dip coating module.

[0009] A curing module, which includes an ultraviolet lamp group. The ultraviolet lamp group is located on the side of the lifting module.

[0010] Furthermore, the mounting frame is detachably installed with a mounting plate. A rotating shaft is provided on the mounting plate. The rotating shaft penetrates through the mounting plate. One end of the rotating shaft is connected to the medical catheter, and the other end of the rotating shaft is drivingly connected to the rotating assembly. The detachable installation of the mounting plate facilitates the overall feeding and discharging of the medical catheters on each plate.

[0011] Furthermore, a plurality of rotating shafts arranged in an array are provided on the mounting plate. The rotating assembly includes a driving motor and rotating gears sleeved on the rotating shafts. The rotating gears of adjacent rotating shafts are meshed with each other, and the output shaft of the driving motor is meshed with the rotating gears.

[0012] The rotating gears of adjacent rotating shafts mesh with each other, and only a single driving motor needs to be set to drive the rotation of the medical catheter. Moreover, the rotation of the medical catheter during the dip coating and curing processes helps to form a uniform hydrophilic coating.

[0013] Furthermore, the mounting frame has a horizontal U-shaped groove, the inner side surface of the U-shaped groove has a protruding track, and the opposite side surfaces of the mounting plate are provided with grooves that match the track.

[0014] The mounting plate is detachably mounted through the opening of the U-shaped groove. At the same time, when loading the medical catheter, the mounting plate can be taken out from the opening of the U-shaped groove. After all the medical catheters are loaded, it slides in through the opening of the U-shaped groove. When discharging, it is the opposite.

[0015] Furthermore, it also includes a machine frame. The dip coating module, the lifting module, and the curing module are fixed on the machine frame, and a switch door is provided on the side surface of the machine frame close to the opening of the U-shaped groove.

[0016] When the operator feeds and discharges materials, by opening the switch door, the entire mounting plate is slid out, and then the medical catheter on the mounting plate is removed.

[0017] Furthermore, the number of solution tubes on the moving frame is N times the number of medical catheters, and the distance between adjacent solution tubes in the same row is 1 / N of the distance between adjacent medical catheters in the same row, where N is an integer.

[0018] During the coating process of the medical catheter, multiple solutions need to be dip-coated. After one solution is dip-coated, the horizontal driving device drives the moving frame to move a distance of 1 / N, so that the medical catheter is aligned with another solution and dip-coated again.

[0019] Furthermore, the dip coating module also includes a switching cover plate. The switching cover plate is located above the moving frame, and the switching cover plate is provided with switching through holes arranged in an array, and the switching through holes correspond to the positions of the medical catheters on the mounting frame.

[0020] The switching cover plate is used to cover the openings of the solution tubes other than during the dip coating process to prevent the test tubes from being accidentally dip-coated. At the same time, it can cover the openings of the solution tubes to reduce the volatilization of the solution.

[0021] Furthermore, the dip coating module also includes a horizontal adjustment driving device, and the horizontal adjustment driving device is connected to the switching cover plate. The horizontal adjustment driving device is used to adjust the position of the switching cover plate so that during use, the positions of the medical catheter, the switching through holes, and the solution tubes can be accurately aligned.

[0022] Furthermore, the curing module includes two sets of ultraviolet lamp groups, and the two sets of ultraviolet lamp groups are respectively located on the two side surfaces of the lifting module.

[0023] Two groups of ultraviolet lamp groups irradiate and cure two rows of medical catheters on the mounting rack at the same time, improving the curing efficiency of the coatings on the medical catheters.

[0024] The above technical solution has the following beneficial effects:

[0025] In the present utility model, the moving rack is located below the mounting rack. During use, it is moved by the horizontal driving device to ensure that the medical catheter is accurately immersed in the solution tube. The lifting driving device controls the lifting of the mounting rack. After the medical catheter is immersed, it rises and disengages from the dip coating module. The ultraviolet lamp group on the side irradiates the medical catheter in the morning to ensure that the coating is fully cured. In the present utility model, a rotating assembly is installed on the mounting rack, which can drive the medical catheter to rotate during the immersion and ultraviolet curing of the medical catheter, so as to form a uniform hydrophilic coating on the surface of the medical catheter, effectively improving the coating quality of the hydrophilic coating. Description of the Drawings

[0026] Figure 1 It is a structural diagram of the coating equipment described in the specific embodiment.

[0027] Figure 2 It is an internal structural diagram of the coating equipment for removing the curing module on one side described in the specific embodiment.

[0028] Figure 3 It is a structural diagram of the dip coating module and the lifting module described in the specific embodiment.

[0029] Figure 4 It is a structural diagram of the dip coating module described in the specific embodiment.

[0030] Figure 5 It is a structural diagram of the moving rack described in the specific embodiment.

[0031] Figure 6 It is a top view structural diagram of the mounting rack described in the specific embodiment.

[0032] Description of the Reference Numerals:

[0033] 1. Dip coating module; 11. Moving rack; 12. Horizontal driving device; 13. Switching cover plate; 131. Switching through hole; 14. Horizontal adjustment driving device; 15. Solution tube;

[0034] 2. Lifting module; 21. Lifting driving device; 22. Rotating assembly; 221. Driving motor; 222. Rotating gear; 23. Mounting rack; 231. U-shaped groove; 24. Mounting plate; 241. Rotating shaft;

[0035] 3. Curing module; 31. Ultraviolet lamp group; 4. Frame; 41. Switching door; 5. Medical catheter. Specific Embodiment

[0036] To describe in detail the technical content, structural features, achieved objectives and effects of the technical solution, the following will be described in detail with reference to specific embodiments and in conjunction with the accompanying drawings.

[0037] Please refer to Figure 1-6 , this embodiment discloses a hydrophilic coating application device for a medical catheter, including a frame 4, a dipping module 1, a lifting module 2 and a curing module 3. The dipping module 1, the lifting module 2 and the curing module 3 are fixed on the frame 4.

[0038] The lifting module 2 includes a lifting drive device 21, a rotating assembly 22 and a mounting frame 23. The mounting frame 23 is used to mount the medical catheter 5. The mounting frame 23 is connected to the lifting drive device 21. The rotating assembly 22 is used to drive the medical catheter 5 to rotate. The mounting frame 23 is located above the dipping module 1;

[0039] The mounting frame 23 is detachably installed with a mounting plate 24. The mounting plate 24 is provided with a rotating shaft 241. The rotating shaft 241 penetrates through the mounting plate 24. One end of the rotating shaft 241 is connected to the medical catheter 5, and the other end of the rotating shaft 241 is drivingly connected to the rotating assembly 22. The detachable installation of the mounting plate 24 facilitates the overall discharging and loading of the medical catheters 5 on each plate.

[0040] In this embodiment, the rotating shaft 241 is installed on the mounting plate 24 by a bearing (not shown in the drawings) to ensure the normal operation of the rotating shaft 241. Threads can be provided at the bottom end of the rotating shaft 241 to facilitate the fixation of the medical catheter 5.

[0041] The mounting plate 24 is provided with a plurality of rotating shafts 241 arranged in an array. The rotating assembly 22 includes a driving motor 221 and a rotating gear 222 sleeved on the rotating shaft 241. The rotating gears 222 of adjacent rotating shafts 241 are meshed with each other, and the output shaft of the driving motor 221 is meshed with the rotating gear 222.

[0042] The rotating gears 222 of adjacent rotating shafts 241 are meshed with each other. Only a single driving motor 221 needs to be set to drive the medical catheter 5 to rotate. And the rotation of the medical catheter 5 during the dipping and curing processes helps to form a uniform hydrophilic coating.

[0043] In this embodiment, the mounting plate 24 is arranged in a long strip shape, and the rotating shafts 241 are arranged in two rows in a staggered manner on the mounting plate 24. In this embodiment, 12 medical catheters 5 can be coated with hydrophilic coatings simultaneously.

[0044] The mounting frame 23 has a horizontal U-shaped groove 231. The inner side surface of the U-shaped groove 231 has a protruding track. The opposite side surfaces of the mounting plate 24 are provided with grooves, and the grooves and the track are matched.

[0045] The mounting plate 24 is detachably mounted through the opening of the U-shaped groove 231. When loading the medical catheter 5, the mounting plate 24 can be taken out from the opening of the U-shaped groove 231. After all the medical catheters 5 are loaded, it slides into the U-shaped groove 231 through the opening. When discharging, the process is opposite.

[0046] In this embodiment, the lifting drive device 21 is a vertically arranged linear module. One end of the mounting frame 23 is connected to the slider on the linear module. The slider of the linear module slides up and down to drive the mounting frame 23 to perform lifting motion.

[0047] A switch door 41 is provided on the side of the frame 4 close to the opening of the U-shaped groove 231. When the operator feeds and discharges materials, by opening the switch door 41, the entire mounting plate 24 is slid out, and then the medical catheter 5 on the mounting plate 24 is removed. In this embodiment, the frame 4 can also be installed with the electric control equipment of other components.

[0048] The dip coating module 1 includes a moving frame 11, a horizontal drive device 12, a switching cover plate 13 and a horizontal adjustment drive device 14. A solution pipe 15 is installed on the moving frame 11, and the horizontal drive device 12 is drivingly connected to the moving frame 11;

[0049] The number of solution pipes 15 on the moving frame 11 is N times the number of medical catheters 5. The distance between adjacent solution pipes 15 in the same row is 1 / N of the distance between adjacent medical catheters 5 in the same row, and N is an integer.

[0050] During the coating process of the medical catheter 5, multiple solutions need to be dip-coated. After dip-coating one solution, the horizontal drive device 12 drives the moving frame 11 to move a distance of 1 / N, so that the medical catheter 5 is aligned with another solution and dip-coated again.

[0051] In this embodiment, the number of solution pipes 15 on the moving frame 11 is 2 times the number of medical catheters 5. The distance between adjacent solution pipes 15 in the same row is 1 / 2 of the distance between adjacent medical catheters 5 in the same row, and the medical catheter 5 is dip-coated with two solutions.

[0052] The switching cover plate 13 is located above the moving frame 11. The switching cover plate 13 is provided with switching through holes 131 arranged in an array, and the positions of the switching through holes 131 correspond to the positions of the medical catheters 5 on the mounting frame 23.

[0053] The switching cover plate 13 is used to cover the openings of the solution pipes 15 other than the dip coating process to prevent the test tubes from being accidentally dip-coated. At the same time, it can cover the openings of the solution pipes 15 to reduce the volatilization of the solution.

[0054] In this embodiment, when the medical catheter 5 is dip-coated into the solution tube 15 containing the first solution, the switching cover plate 13 covers the orifice of the solution tube 15 containing the second solution at this time. After the medical catheter 5 is completely immersed in the first solution, the medical catheter 5 rises, and the horizontal driving device 12 drives the moving frame 11 to move until the solution tube 15 containing the second solution is aligned with the medical catheter 5. At this time, the switching cover plate 13 covers the orifice of the solution tube 15 containing the first solution, and the medical catheter 5 descends and is immersed in the second solution.

[0055] The horizontal adjustment driving device 14 is connected to the switching cover plate 13. The horizontal adjustment driving device 14 is used to adjust the position of the switching cover plate 13 so that the positions of the medical catheter 5, the switching through-hole 131, and the solution tube 15 can be accurately aligned during use.

[0056] In this embodiment, both the horizontal driving device 12 and the horizontal adjustment driving device 14 are linear modules. The sliders on the two linear modules are respectively connected to the moving frame 11 and the switching cover plate 13 through connecting plates.

[0057] The curing module 3 includes two groups of ultraviolet lamp groups 31, which are respectively located on both side surfaces of the lifting module 2.

[0058] The two groups of ultraviolet lamp groups 31 simultaneously irradiate and cure the two rows of medical catheters 5 on the mounting rack 23, improving the curing efficiency of the coating of the medical catheter 5.

[0059] In some other embodiments, the curing module 3 may further include a cooling fan for dissipating heat from the integrated ultraviolet lamp group 31.

[0060] The usage process of the present utility model:

[0061] (1) Install the medical catheter 5 on the mounting plate 24 and then install it on the mounting rack 23. At this time, the rotating gear 222 of the rotating shaft 241 at one end is engaged with the output shaft of the driving motor 221. Load the solution to be dip-coated on the solution tube 15.

[0062] (2) Adjust the position of the switching cover plate 13 so that the switching through-hole 131 is aligned with the medical catheter 5.

[0063] (3) The mounting rack 23 drives the medical catheter 5 to descend. The medical catheter 5 passes through the switching through-hole 131 and is immersed in the solution tube 15 containing the first dip-coating solution. After complete immersion, the mounting rack 23 drives the medical catheter 5 to rise, and the ultraviolet lamp group 31 is turned on to irradiate and cure the solution on the surface of the medical catheter 5.

[0064] (4) Move the moving frame so that the solution tube 15 containing the second dip-coating solution is aligned with the switching through-hole 131.

[0065] (5) The mounting bracket 23 drives the medical catheter 5 to descend. The medical catheter 5 passes through the switching through-hole 131 and immerses into the solution tube 15 containing the second dip-coating solution. After the immersion is completed, the mounting bracket 23 drives the medical catheter 5 to rise, and the ultraviolet lamp group 31 is turned on. The solution on the surface of the medical catheter 5 is subjected to radiation curing.

[0066] (6) After the curing is completed, the product is taken out.

[0067] It should be noted that in this text, relational terms such as first and second 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 term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or terminal device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or terminal device. Without further limitation, the elements defined by the statement "comprising..." or "including..." do not exclude the existence of additional elements in the process, method, article or terminal device comprising the said elements. In addition, in this text, "greater than", "less than", "exceeding" etc. are understood not to include the present number; "above", "below", "within" etc. are understood to include the present number.

[0068] Although the above-described embodiments have been described, those skilled in the art can make additional changes and modifications once they learn the basic creative concept. Therefore, the above description is only the embodiments of the present invention, and does not limit the patent protection scope of the present invention. Any equivalent structure or equivalent process transformation made by using the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present invention.

Claims

1. A hydrophilic coating applying device for a medical catheter, characterized in that, Comprising: A dip coating module, the dip coating module includes a moving frame and a horizontal driving device, a solution pipe is installed on the moving frame, and the horizontal driving device is drivingly connected to the moving frame; A lifting module, the lifting module includes a lifting driving device, a rotating assembly and a mounting frame, the mounting frame is used for mounting a medical catheter, the mounting frame is connected to the lifting driving device, the rotating assembly is used for driving the medical catheter to rotate, and the mounting frame is located above the dip coating module; A curing module, the curing module includes an ultraviolet lamp group, and the ultraviolet lamp group is located on the side of the lifting module.

2. The hydrophilic coating application device for a medical catheter according to claim 1, characterized in that, The mounting frame is detachably installed with a mounting plate, the mounting plate is provided with a rotating shaft, the rotating shaft penetrates through the mounting plate, one end of the rotating shaft is connected to the medical catheter, and the other end of the rotating shaft is drivingly connected to the rotating assembly.

3. The hydrophilic coating application device for a medical catheter according to claim 2, characterized in that, The mounting plate is provided with a plurality of rotation shafts arranged in an array, the rotation assembly includes a driving motor and a rotation gear sleeved on the rotation shaft, the rotation gears of adjacent rotation shafts are meshed with each other, and the output shaft of the driving motor is meshed with the rotation gear.

4. The hydrophilic coating applying device for a medical catheter according to claim 2, wherein, The mounting frame has a horizontal U-shaped groove, the inner side surface of the U-shaped groove has a protruding track, and the opposite side surfaces of the mounting plate are provided with grooves, and the grooves are matched with the tracks.

5. The hydrophilic coating applying device for a medical catheter according to claim 4, characterized in that, It further includes a machine frame, the dip coating module, the lifting module and the curing module are fixed on the machine frame, and a switch door is provided on the side surface of the machine frame close to the opening of the U-shaped groove.

6. The hydrophilic coating applying device for a medical catheter according to claim 1, wherein, The number of solution pipes on the moving frame is N times the number of medical catheters, and the distance between adjacent solution pipes in the same row is 1 / N of the distance between adjacent medical catheters in the same row, and N is an integer.

7. The hydrophilic coating applying device for a medical catheter according to claim 6, characterized in that, The dip coating module further includes a switching cover plate, the switching cover plate is located above the moving frame, and the switching cover plate is provided with switching through holes arranged in an array, and the switching through holes correspond to the positions of the medical catheters on the mounting frame.

8. The hydrophilic coating application device for a medical catheter according to claim 7, characterized in that, The dip coating module further includes a horizontal adjustment driving device, and the horizontal adjustment driving device is connected to the switching cover plate.

9. The hydrophilic coating application device for a medical catheter according to claim 1, characterized in that, The curing module includes two groups of ultraviolet lamp groups, and the two groups of ultraviolet lamp groups are respectively located on the two side surfaces of the lifting module.

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