A urinary catheter surface treatment device

Abstract

The application provides a catheter surface treatment device. In operation, first, catheters are sleeved and arranged in rows on a plurality of mounting columns, and the catheters are conveyed by using a conveying chain. When the catheters are conveyed to a glue pool, the catheters on the mounting frame are turned over by cooperation of a driving device, a transmission mechanism and a turnover mechanism, so that the catheters are immersed in the glue pool and move in the glue pool along with the conveying chain. The driving device drives the plurality of catheters to rotate by cooperation of a rotating mechanism, so that the catheters rotate while moving in the glue pool, and the glue can be uniformly applied to the surface of the head of the catheter. Then, the catheters are turned out of the glue pool. After the glue solidifies into a hydrophilic film on the surface of the catheter, the catheters are automatically unloaded by an unloading mechanism, so that the automatic film coating operation of the catheters is realized. The continuity and automation degree of the film coating are high, the labor cost is reduced, and the work efficiency of the film coating of the catheters is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of catheter processing technology, in particular to a catheter surface treatment device. BACKGROUND

[0002] Medical catheters are mainly used to help patients who cannot normally urinate to discharge urine in the bladder and clean the bladder, and can also be used for compression hemostasis after surgery for patients with prostatitis. Therefore, the catheter is a typical product left in the human body. Since the catheter must be inserted into the patient's bladder through the urethra, it is required that such products not only have excellent biocompatibility, but also have good surface hydrophilic performance, so as to be easily inserted into the patient's bladder through the urethra. At present, except for a small amount of catheters produced by silicone rubber, most medical catheters are mainly produced by natural rubber latex. This is mainly because natural rubber has excellent comprehensive performance and film forming property. The catheter produced by natural rubber latex process has good elasticity, especially suitable for being left in the patient's body. However, natural rubber is a non-polar polymer material, and various latex products made of natural rubber have poor surface hydrophilic performance. Due to the poor surface hydrophilic performance, there is a great friction between the surface of the catheter and the soft tissue of the human body, so that the catheter cannot be directly inserted into the patient's body through the urethra. Therefore, when using the catheter, medical staff must pre-coat a large amount of silicone oil with lubricating effect on the surface of the catheter head tube. However, as the catheter is left in the patient's body for a long time, the silicone oil is gradually absorbed by the human body or gradually discharged with urine, which makes it difficult to take out the catheter from the patient's body, and the phenomenon of pulling the patient's urethra occurs. In severe cases, even the phenomenon of adhesion between the surface of the catheter and the soft tissue of the patient occurs. Therefore, improving the surface hydrophilic performance of the medical catheter is of great significance to improve the safety of the catheter. Usually, the catheter head tube is immersed in glue solution until a smooth hydrophilic film is formed on its outer surface. However, at present, there is no complete set of equipment that can automatically realize the film coating processing of the catheter surface. The above catheter film coating operation still adopts manual operation, which has low automation degree, is time-consuming and laborious, and has low production efficiency. SUMMARY

[0003] The purpose of the present application is to solve the above problems by providing a catheter surface treatment device.

[0004] The present application provides a catheter surface treatment device, comprising:

[0005] A rack is provided with a glue pool and a motor-driven conveying chain on the rack, a mounting frame is rotatably arranged on the conveying chain, and a plurality of mounting columns for sleeving the catheter are rotatably arranged on the mounting frame;

[0006] A rotating mechanism is arranged on the mounting frame and used to drive the mounting posts to rotate, the rotating mechanism comprises self-rotating worm gears and a main worm, each of the mounting posts is provided with a self-rotating worm gear, the main worm is rotatably arranged on the mounting frame and engaged with the self-rotating worm gears, and the mounting frame is provided with a driving device in transmission connection with the main worm and capable of driving the main worm to rotate;

[0007] A turnover mechanism is in transmission connection with the mounting frame and capable of driving the mounting frame to rotate so as to enable the catheter on the mounting frame to enter or exit the glue pool, the main worm is coaxially provided with a connecting barrel capable of being in transmission connection with the turnover mechanism and capable of controlling the working state of the turnover mechanism;

[0008] A transmission mechanism is arranged on the mounting frame and used to adjust the transmission state of the connecting barrel and the turnover mechanism;

[0009] A discharging mechanism is arranged on the mounting frame and used to push the catheter on the mounting frame away from the mounting posts.

[0010] Preferably, the turnover mechanism comprises a fixed worm gear and a transmission worm, the mounting frame is rotatably arranged on the conveying chain and provided with a fixed rod, the fixed worm gear is arranged on the fixed rod, the transmission worm is rotatably arranged on the mounting frame and engaged with the fixed worm gear, the connecting barrel is in transmission connection with the transmission worm and capable of controlling the rotating state of the transmission worm, and the transmission mechanism is used to adjust the transmission state of the connecting barrel and the transmission worm.

[0011] Preferably, the transmission mechanism comprises a transmission bevel gear, a driving bevel gear and a magnetic attraction assembly, the transmission bevel gear is arranged on the transmission worm and capable of driving the transmission worm to rotate, the driving bevel gear is rotatably arranged on the mounting frame and engaged with the transmission bevel gear, the driving bevel gear is provided with a through hole through which the connecting barrel passes, the magnetic attraction assembly comprises a crown gear, a magnetic ring, an electromagnet and a return spring, the crown gear is movably arranged on the connecting barrel, the crown gear is only capable of moving relative to the connecting barrel but not rotating relative to the connecting barrel, the driving bevel gear is provided with a crown tooth groove in which the crown gear is engaged, the return spring is arranged in the inner cavity of the connecting barrel and capable of pushing the crown gear away from the crown tooth groove, the magnetic ring is arranged on the crown gear, the electromagnet is arranged on the mounting frame and repulsively arranged relative to the magnetic ring, and the electromagnet is capable of acting on the magnetic ring to drive the crown gear to engage with the crown tooth groove.

[0012] Preferably, the driving device is a servo motor.

[0013] Preferably, the unloading mechanism comprises an electric telescopic rod and an unloading plate, the electric telescopic rod is arranged on the mounting frame, the unloading plate is provided with a plurality of limiting holes for the mounting column to pass through, the unloading plate can push the catheter on the mounting column out, and the electric telescopic rod is in transmission connection with the unloading plate and can drive the unloading plate to move relative to the mounting column.

[0014] Preferably, the rack is provided with a feeding area, a film covering area, an irradiation area and a discharging area, and the glue pool is arranged at the film covering area.

[0015] Preferably, the irradiation area is provided with ultraviolet lamps, and the glue in the glue pool contains a photosensitizer and an adhesive.

[0016] Compared with the prior art, the application has the following beneficial effects:

[0017] In work, first, the catheters are arranged in rows on the mounting columns, the catheters are conveyed by the conveying chain, when the catheters are conveyed to the glue pool, the catheters on the mounting frame are turned over by the cooperation of the driving device, the transmission mechanism and the turnover mechanism, so that the catheters are immersed in the glue pool and move in the glue pool with the conveying chain, wherein the driving device drives the catheters to rotate by cooperating with the rotating mechanism, so that the catheters rotate while moving in the glue pool, so that the glue can be evenly coated on the surface of the catheter head, then the catheters are turned out of the glue pool, and after the glue solidifies into a hydrophilic film on the surface of the catheter, the catheters are automatically unloaded by the unloading mechanism, that is, the automatic film covering operation of the catheters is realized, the continuity and automation degree of the film covering are high, the labor cost is reduced, and the work efficiency of the catheter film covering is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the application, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only preferred embodiments of the application, and other drawings can be obtained by those skilled in the art without creative labor.

[0019] Figure 1 It is a structural schematic view of an embodiment of the application;

[0020] Figure 2 It is a structural schematic view of the mounting frame in an embodiment of the application;

[0021] Figure 3 It is an internal structural schematic view of the mounting frame in an embodiment of the application;

[0022] Figure 4A structure schematic view of the turning mechanism in an embodiment of the present application.

[0023] In the figure, 1 - rack; 11 - glue pool; 12 - conveying chain; 13 - feeding area; 14 - film covering area; 15 - irradiation area; 16 - discharging area; 2 - mounting frame; 21 - mounting column; 3 - rotating mechanism; 31 - self-rotating worm gear; 32 - main worm; 4 - driving device; 5 - turning mechanism; 51 - fixed worm gear; 52 - transmission worm; 6 - connecting cylinder; 7 - transmission mechanism; 71 - transmission bevel gear; 72 - driving bevel gear; 721 - crown tooth groove; 8 - discharging mechanism; 81 - electric telescopic rod; 82 - discharging plate; 9 - magnetic attraction assembly; 91 - crown gear; 92 - magnetic ring; 93 - electromagnet; 94 - return spring. DETAILED DESCRIPTION

[0024] This part will describe the specific embodiments of the present application in detail, the preferred embodiments of the present application are shown in the accompanying drawings, the role of the drawings is to supplement the description of the text part with figures, so that people can intuitively and visually understand each technical feature and the overall technical scheme of the present application, but it cannot be understood as a limitation on the protection scope of the present application.

[0025] Example 1:

[0026] Reference Figures 1 to 4 The present application provides a catheter surface treatment device, comprising:

[0027] The rack 1 is provided with a glue pool 11 and a motor-driven conveying chain 12, the conveying chain 12 is rotatably provided with a mounting frame 2, and the mounting frame 2 is rotatably provided with a plurality of mounting columns 21 for sleeving the catheter;

[0028] The rotating mechanism 3 is arranged on the mounting frame 2 and is used for driving the plurality of mounting columns 21 to rotate, the rotating mechanism 3 comprises a self-rotating worm gear 31 and a main worm 32, the self-rotating worm gear 31 is arranged on each mounting column 21, the main worm 32 is rotatably arranged on the mounting frame 2 and is in meshing connection with the plurality of self-rotating worm gears 31, and the mounting frame 2 is provided with a driving device 4 in transmission connection with the main worm 32 and capable of driving the main worm 32 to rotate;

[0029] The turning mechanism 5 is in transmission connection with the mounting frame 2 and can drive the mounting frame 2 to rotate so that the catheter on the mounting frame 2 can enter and exit the glue pool 11, the main worm 32 is coaxially provided with a connecting cylinder 6, the connecting cylinder 6 can be in transmission connection with the turning mechanism 5 and can control the working state of the turning mechanism 5;

[0030] The transmission mechanism 7 is arranged on the mounting frame 2, and the transmission mechanism 7 is used for adjusting the transmission state of the connecting cylinder 6 and the turning mechanism 5;

[0031] The unloading mechanism 8 is arranged on the mounting frame 2 and is used to push the catheter on the mounting frame 2 away from the mounting column 21.

[0032] In operation, first, the catheters are arranged in rows on the mounting columns 21, and then the catheters are transported to the glue pool 11 by the conveying chain 12. The catheters on the mounting frame 2 are turned over by the cooperation of the driving device 4, the transmission mechanism 7 and the turnover mechanism 5, so that the catheters are immersed in the glue pool 11 and move in the glue pool 11 along with the conveying chain 12. The driving device 4 drives the rotation of the mounting frame 2 by cooperating with the rotating mechanism 3, so that the catheters rotate while moving in the glue pool 11, and the glue can be evenly coated on the surface of the head of the catheter. Then, the catheters are turned out of the glue pool 11, and after the glue on the surface of the catheter solidifies into a hydrophilic film, the catheters are automatically unloaded by the unloading mechanism 8, that is, the automatic film coating operation of the catheter is realized. The continuity and automation degree of the film coating are high, the labor cost is reduced, and the work efficiency of the film coating of the catheter is improved.

[0033] Embodiment 2

[0034] With reference to Figures 1 to 4 In combination with the technical scheme of embodiment 1, in the present embodiment, the turnover mechanism 5 includes a fixed worm wheel 51 and a transmission worm 52. The conveying chain 12 is provided with a fixed rod for rotating mounting of the mounting frame 2. The fixed worm wheel 51 is arranged on the fixed rod. The transmission worm 52 is rotatably mounted on the mounting frame 2 and is in meshing connection with the fixed worm wheel 51. The connecting barrel 6 can be in transmission connection with the transmission worm 52 and control the rotation state of the transmission worm 52. The transmission mechanism 7 is used to adjust the transmission state of the connecting barrel 6 and the transmission worm 52.

[0035] Specifically, the transmission mechanism 7 comprises a transmission bevel gear 71, a driving bevel gear 72 and a magnetic attraction assembly 9, the transmission bevel gear 71 is arranged on the transmission worm 52 and can drive the transmission worm 52 to rotate, the driving bevel gear 72 is rotatably installed on the mounting frame 2 and is in mesh with the transmission bevel gear 71, the driving bevel gear 72 is provided with a through hole through which the connecting barrel 6 passes, the magnetic attraction assembly 9 comprises a crown gear 91, a magnetic ring 92, an electromagnet 93 and a return spring 94, the crown gear 91 is movably installed on the connecting barrel 6, the crown gear 91 can only move relative to the connecting barrel 6 but cannot rotate relative to the connecting barrel 6, the driving bevel gear 72 is provided with a crown gear slot 721 for the crown gear 91 to engage, the return spring 94 is arranged in the inner cavity of the connecting barrel 6, the return spring 94 can push the crown gear 91 away from the crown gear slot 721, the magnetic ring 92 is installed on the crown gear 91, the electromagnet 93 is arranged on the mounting frame 2, the electromagnet 93 is arranged opposite to the magnetic ring 92, and the electromagnet 93 can act on the magnetic ring 92 to drive the crown gear 91 to engage with the crown gear slot 721. The inner cavity of the connecting barrel 6 is movably provided with a sliding block, the side wall of the connecting barrel 6 is provided with a sliding groove for movably installing the crown gear 91, the crown gear 91 is connected with the sliding block, and the return spring 94 can push the sliding block to push the crown gear 91.

[0036] Specifically, the driving device 4 is a servo motor.

[0037] The main worm 32 is driven by the servo motor to drive the plurality of self-rotating worm gears 31 to rotate, thereby driving the plurality of catheters to rotate through the mounting column 21. When it is necessary to overturn the mounting frame 2 to drive the head region of the catheter to be immersed in the glue liquid pool 11, the electromagnet 93 is powered on and drives the crown gear 91 to move towards the crown gear slot 721 through the magnetic ring 92 until the two are engaged. At this time, the return spring 94 is in a compressed state. The main worm 32 is in driving connection with the transmission worm 52 through the connecting barrel 6, the driving bevel gear 72 and the transmission bevel gear 71, that is, the servo motor can drive the transmission worm 52 to rotate. The transmission worm 52 drives the mounting frame 2 to rotate around the fixed worm gear 51 during rotation, thereby realizing the overturning process of the mounting frame 2. After the mounting frame 2 is overturned to immerse the catheter in the glue liquid pool 11, the electromagnet 93 is powered off, and the return spring 94 pushes the crown gear 91 away from the crown gear slot 721, that is, the driving state of the servo motor and the transmission worm 52 is released. The mounting frame 2 stops rotating and is in a state that the mounting column 21 faces downward. The servo motor drives the catheter to rotate in the glue liquid pool 11 through the main worm 32 and the plurality of self-rotating worm gears 31, so that the glue liquid can be evenly applied to the surface of the catheter. After the soaking is completed, the catheter is turned out of the glue liquid pool 11 by the magnetic attraction assembly 9 in cooperation with the driving device 4. After the glue liquid solidifies, the mounting frame 2 is overturned to a position that the catheter faces downward, and the catheter is unloaded by the unloading mechanism 8. After the unloading is completed, the mounting frame 2 is overturned to a position that the mounting column 21 faces upward, thereby facilitating the staff to perform the feeding work of the catheter in the next round.

[0038] Example 3:

[0039] Reference Figures 1 to 4 In conjunction with the technical solutions of Embodiments 1 and 2, in this embodiment, the unloading mechanism 8 includes an electric telescopic rod 81 and an unloading plate 82. The electric telescopic rod 81 is mounted on the mounting frame 2, and the unloading plate 82 is provided with a plurality of limiting holes for the mounting column 21 to pass through. The unloading plate 82 can push out the catheter on the mounting column 21. The electric telescopic rod 81 is connected to the unloading plate 82 and can drive the unloading plate 82 to move relative to the mounting column 21.

[0040] Specifically, the frame 1 is provided with a feeding area 13, a coating area 14, an irradiation area 15 and a discharging area 16, and the adhesive pool 11 is located in the coating area 14.

[0041] Specifically, ultraviolet lamps are installed at 15 locations in the irradiation zone, and the adhesive in the 11 adhesive pools contains photosensitizers and adhesives.

[0042] During operation, workers first arrange the catheters in rows on several mounting posts 21 at the feeding area 13, and then transport them via the conveyor chain 12. When the catheters reach the coating area 14, the drive device 4, in conjunction with the rotating mechanism 3, the flipping mechanism 5, and the transmission mechanism 7, drives the mounting frame 2 to flip so that the catheters face downwards. The catheters are then immersed in the adhesive pool 11 and rotate to apply the adhesive. Afterwards, the catheters are flipped out of the adhesive pool 11, with the head of the catheter facing upwards. The catheters continue to be transported to the irradiation area 15, where they are irradiated by ultraviolet light combined with the adhesive... Photosensitizer and adhesive drive the adhesive to solidify rapidly, forming a hydrophilic film on the surface of the catheter tip. The catheter is then transported to the unloading area 16. The mounting frame 2 is flipped so that the catheter tip faces downwards, and the electric telescopic rod 81 drives the unloading plate 82 to remove the catheters from the mounting posts 21, thus unloading the catheters. After unloading, the mounting frame 2 is flipped so that the mounting posts 21 face upwards, and the conveyor chain 12 transports the mounting frame 2 back to the loading area 13 for coating processing of the next batch of catheters. In other embodiments, a receiving frame can be provided in the unloading area 16 to accommodate the catheters unloaded from the mounting posts 21, or a conveyor belt can be provided in the unloading area 16 to transport the unloaded catheters to the next processing position.

[0043] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention in any way. Any person skilled in the art can make many possible variations and modifications to the technical solutions of the present invention, or modify them into equivalent embodiments, without departing from the scope of the present invention. Therefore, any modifications, equivalent changes, and alterations made to the above embodiments based on the technology of the present invention without departing from the scope of the present invention are within the protection scope of the present invention.

Claims

1. A urinary catheter surface treatment device, characterized by, The device comprises a rack, a glue pool and a motor-driven conveying chain arranged on the rack, a mounting rack rotatably arranged on the conveying chain, a plurality of mounting columns for connecting catheters rotatably arranged on the mounting rack, a rotating mechanism arranged on the mounting rack and used for driving the plurality of mounting columns to rotate, the rotating mechanism comprising a self-rotating worm gear and a main worm, each of the mounting columns is provided with the self-rotating worm gear, the main worm is rotatably arranged on the mounting rack and engaged with the plurality of self-rotating worm gears, the mounting rack is provided with a driving device in transmission connection with the main worm and capable of driving the main worm to rotate, a turnover mechanism in transmission connection with the mounting rack and capable of driving the mounting rack to rotate so that the catheters on the mounting rack can enter and exit the glue pool, a connecting barrel coaxially arranged on the main worm, the connecting barrel being in transmission connection with the turnover mechanism and capable of controlling the working state of the turnover mechanism, a transmission mechanism arranged on the mounting rack and used for adjusting the transmission state of the connecting barrel and the turnover mechanism, and a discharging mechanism arranged on the mounting rack and used for pushing the catheters on the mounting rack away from the mounting columns.

2. The device according to claim 1, wherein the driving device is a servo motor.

3. The device according to claim 1, wherein ​ ​ ​ ​ ​ ​ ​ ​ The unloading mechanism comprises an electric telescopic rod and an unloading plate, the electric telescopic rod is arranged on the mounting frame, the unloading plate is provided with a plurality of limiting holes for the mounting column to pass through, the unloading plate can push the catheter on the mounting column out, and the electric telescopic rod is in transmission connection with the unloading plate and can drive the unloading plate to move relative to the mounting column.

4. The catheter surface treatment device according to claim 1, characterized in that: The rack is provided with a feeding area, a film coating area, an irradiation area and a discharging area, and the glue pool is arranged at the film coating area.

5. The catheter surface treatment device according to claim 4, characterized in that: The irradiation area is provided with ultraviolet lamps, and the glue in the glue pool at the glue pool contains a photosensitizer and an adhesive.

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