Detection mechanism based on catheter friction coefficient and detection method thereof

Abstract

The invention belongs to the technical field of catheter detection, and particularly relates to a catheter friction coefficient-based detection mechanism and a detection method thereof.The catheter friction coefficient-based detection mechanism comprises a winding mechanism, a guide mechanism is mounted on the upper surface of the winding mechanism, and a cleaning temperature control mechanism is mounted on one side of the guide mechanism; an adjusting mechanism is mounted on the surface of the cleaning temperature control mechanism, and the cleaning temperature control mechanism comprises a temperature control assembly mounted on one side of the guide mechanism; through the cooperation of the structure, when the catheter is inserted into a guide ring and a hollow ring, a driving motor is started, so that a threaded rod drives an extrusion plate to extrude water flow in a water collection box, the water flow is sprayed to the surface of the catheter through a spraying pipe, and meanwhile, the threaded rod rotates to drive a driving gear to rotate; and through mutual cooperation of a sponge eraser arranged in the hollow ring and a temperature control assembly, dust and attached water drops on the surface of the catheter are wiped away.

Description

Technical Field

[0001] This invention belongs to the field of catheter testing technology, specifically a testing mechanism and method based on the friction coefficient of a catheter. Background Technology

[0002] A urinary catheter is a tube inserted into the bladder through the urethra to drain urine. It is made of natural rubber, silicone rubber, or polyvinyl chloride. After the catheter is inserted into the bladder, a balloon near the tip of the catheter secures it in the bladder, making it less likely to fall out. The drainage tube is connected to a urine bag to collect urine.

[0003] When a urinary catheter is used, it needs to come into contact with the body tissue. Each time it is inserted into or removed from the body tissue, the patient will experience varying degrees of burning pain, which can easily cause corresponding mucosal damage or even tissue inflammation. This is mainly due to the large coefficient of dynamic friction between the surface material of the urinary catheter and the body tissue. For the above reasons, the coefficient of dynamic friction of the urinary catheter in the body tissue is a technical indicator that is strictly controlled on the production line.

[0004] A Chinese invention patent, CN114965255B, discloses a detection mechanism and method based on the friction coefficient of a urinary catheter. The key technical points are: it includes a winding shell, a cleaning mechanism on the outer side of the winding shell, a first motor fixedly installed at the middle of one side of the winding shell, a first rotating shaft installed at the output end of the first motor, a bearing plate installed on the side of the winding shell away from the first motor, and the first rotating shaft movably connected to the bearing plate. The cleaning mechanism includes a guide tube, a detection module is provided between the guide tube and the winding shell, and a fixing plate is fixedly installed on the outer side of the guide tube away from the winding shell. This invention avoids the influence of dust and other impurities on the outer surface of the urinary catheter on the detection of the urinary catheter friction coefficient, has a convenient cleaning function, improves the accuracy of the urinary catheter friction coefficient detection, has a quick disassembly and maintenance function, and is also convenient for the storage of the urinary catheter.

[0005] However, the above-mentioned technologies often have the following drawbacks: Although starting the No. 2 motor on the outside of the fixed plate drives the saw teeth meshing with the gear to rotate, thereby causing the rotating tube to rotate inside the guide tube and cleaning the outer surface of the catheter, thus avoiding the influence of dust and other impurities on the detection of the catheter friction coefficient, the above-mentioned technologies cannot completely clean the surface of the catheter by using a cleaning cotton tube when cleaning the catheter. This is because dust may be attached to the surface of the catheter, and the cleaning cotton tube alone cannot completely clean the dust on the surface of the catheter. As a result, the dust follows the catheter and sticks to the detection module, affecting the detection accuracy of the detection module, thus leading to a decrease in the accuracy of the catheter friction coefficient detection results.

[0006] Therefore, the present invention provides a detection mechanism and method based on the friction coefficient of a urinary catheter. Summary of the Invention

[0007] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0008] The technical solution adopted by the present invention to solve its technical problem is as follows: The present invention provides a detection mechanism based on the friction coefficient of a urinary catheter, including a winding mechanism, a guide mechanism installed on the upper surface of the winding mechanism, a cleaning and temperature control mechanism installed on one side of the guide mechanism, and an adjustment mechanism installed on the surface of the cleaning and temperature control mechanism; the cleaning and temperature control mechanism includes a temperature control component installed on one side of the guide mechanism, a guide ring installed on one side of the temperature control component, a mounting frame fixedly connected inside the guide ring, a toothed ring rotatably connected inside the mounting frame, a drive gear rotatably connected to the guide ring on the surface of the toothed ring, a sponge pad inside the toothed ring, a threaded rod fixedly connected to one side of the drive gear, a water collection box sleeved on the surface of the threaded rod, a drive motor whose output end is fixedly connected to the threaded rod fixedly connected inside the water collection box, a compression plate slidably connected to the surface of the threaded rod and slidably connected inside the water collection box, and spray pipes corresponding to the guide ring fixedly connected to both edges on one side of the water collection box.

[0009] As a further embodiment of the present invention: the temperature control assembly includes two flanges that are fixedly connected to the guide ring and the guide mechanism respectively. The opposite sides of the two flanges are jointly fixedly connected to a hollow ring corresponding to the guide ring. A sponge is fixedly connected inside the hollow ring. A mounting box that fits against the threaded rod is fixedly connected to the upper surface of the hollow ring.

[0010] As a further embodiment of the present invention: the temperature control component further includes a controller fixedly connected inside the mounting box, a temperature sensor corresponding to the hollow ring is fixedly connected to the lower surface of the controller, a heating module and a cooling module connected to the controller are fixedly connected to both sides of the hollow ring respectively, and an arc-shaped plate corresponding to the spray pipe is fixedly connected to both sides of the upper surface of the mounting box.

[0011] As a further embodiment of the present invention: the winding mechanism includes a mounting base plate, a storage box is inserted into one side of the upper surface of the mounting base plate, a guide screw rod is fixedly connected inside the storage box, a plug block that is rotatably connected to the storage box is attached to one side of the guide screw rod, and a clamping rod that is slidably connected inside the storage box is threaded to one side of the plug block.

[0012] As a further embodiment of the present invention: the winding mechanism further includes a connecting rod fixedly connected to the lower surface of the insertion block, one end of the connecting rod is fixedly connected to a servo motor fixedly connected to the storage box, the output end of the servo motor is fixedly connected to the connecting rod, the surface of the storage box is hinged to a sealing cover, the surface of the sealing cover is provided with an observation window corresponding to the guide screw rod, and one side of the sealing cover is fixedly connected to a buckle connected to the storage box.

[0013] As a further embodiment of the present invention: the guiding mechanism includes a guide box fixedly connected to one side of the storage box and communicating with the storage box, the guide box having a guide groove corresponding to an existing urinary catheter inside, the guide groove communicating with the storage box, the water collection box fixedly connected to the upper surface of the guide box, one of the flanges fixedly connected to the guide box and communicating with the guide box, and a detection module corresponding to the guide groove fixedly connected inside the guide box.

[0014] As a further embodiment of the present invention: the adjustment mechanism includes four support rods that are respectively fixedly connected to the storage box and connected to the mounting base plate, wherein a fixing plate is fixedly connected to one side of two of the support rods, and a mounting plate is rotatably connected to the opposite sides of the two fixing plates through a rotating shaft. A sliding groove is provided on the surface of the mounting plate, and a clamping mechanism that is slidably connected to the mounting plate is slidably connected inside the sliding groove.

[0015] As a further embodiment of the present invention: the clamping mechanism includes a fixed block magnetically attracted inside the sliding groove, a pressing plate slidably connected inside the fixed block, a threaded cylinder slidably connected to the upper surface of the pressing plate, a screw threadedly connected inside the threaded cylinder, and a limiting plate fixedly connected to the fixed block on the surface of the screw.

[0016] As a further embodiment of the present invention: the adjustment mechanism further includes a rotating plate that fits against the lower surface of the mounting plate, and a rotating rod that is rotatably connected to the surface of the rotating plate via a bearing seat is fixedly connected to the mounting base plate. A DC motor that is fixedly connected to the mounting base plate is installed at one end of the rotating rod, and the output end of the DC motor is connected to the rotating rod via a belt.

[0017] A method for detecting the friction coefficient of a urinary catheter, the method employing the aforementioned detection mechanism based on the friction coefficient of a urinary catheter, includes the following steps: S1. Insert one end of the catheter into the fixed block and rotate the screw to make the threaded cylinder drive the clamping plate to limit the catheter and clamp one end of the catheter. At the same time, insert the other end of the catheter into the guide mechanism and the winding mechanism so that the catheter is inserted into the insertion block. Then, rotate the clamping rod to limit the other end of the catheter. S2. Start the servo motor. The plug block drives the catheter to slide inside the guide mechanism, guide ring and toothed ring. At the same time, start the drive motor so that the squeezing plate sprays the water inside the water collection box onto the catheter through the spray pipe. The screw rod rotates so that the drive gear drives the toothed ring to rotate. Through the interaction of water flow and sponge pad, the dust on the surface of the catheter is cleaned. S3: Based on the sliding of the catheter inside the hollow ring, the dust and water droplets on the surface of the catheter are wiped away by a sponge. The temperature of the catheter is monitored by a temperature sensor. Based on the cooperation of the controller, heating module and cooling module, the temperature of the catheter is controlled to simulate the temperature of the catheter in actual use. S4: When the catheter slides, the catheter is in contact with the detection module. The detection module detects the coefficient of friction of the catheter sliding, and the servo motor is turned off. Based on the adjustment mechanism, the rotating plate drives the mounting plate to rotate on the surface of the mounting base plate, which in turn drives the fixed block and the catheter to rotate, simulating the situation where the catheter slides due to the patient squatting. The detection module detects the coefficient of friction of the catheter during the sliding process, so that the catheter friction coefficient detection mechanism simulates the situation of the catheter in use. S5: After testing the friction coefficient of the urinary catheter, rotate the screw to disengage the urinary catheter from the fixing block. Then, by starting the servo motor, the urinary catheter is stored inside the storage box. The guide screw guides the urinary catheter, and finally, the urinary catheter is stored. The buckle is released, and the sealing cap flips over. The staff can then take out the urinary catheter, completing the testing of the urinary catheter.

[0018] The beneficial effects of this invention are as follows.

[0019] 1. The present invention discloses a detection mechanism and method based on the friction coefficient of a urinary catheter. Based on the cooperation of a cleaning and temperature control mechanism and other structures, when the urinary catheter is inserted into the guide ring and hollow ring, the drive motor is activated, causing the threaded rod to drive the extrusion plate to extrude water into the collection box. This causes the water to be sprayed onto the surface of the urinary catheter through the spray pipe. Simultaneously, the rotation of the threaded rod drives the drive gear to rotate, causing the gear ring to drive the sponge pad to rotate and clean the surface of the urinary catheter. Furthermore, through the cooperation of the sponge wiper and temperature control component inside the hollow ring, not only can dust and adhering water droplets be wiped away from the surface of the urinary catheter, but the temperature of the urinary catheter can also be controlled. This avoids dust affecting the detection results when the detection module performs friction coefficient testing on the urinary catheter, and also allows the temperature of the urinary catheter to be controlled within a certain range, making the temperature during urinary catheter testing similar to that during actual use, thus improving the accuracy of the urinary catheter friction coefficient detection.

[0020] 2. The present invention discloses a catheter friction coefficient detection mechanism and method. Based on the cooperation of the adjustment mechanism and other structures, after detecting the friction coefficient of the sliding insertion of the catheter, a DC motor is started, causing the rotating plate to drive the mounting plate to rotate, causing the fixed block and the catheter to flip simultaneously. This causes the fixed block to pull the catheter to slide inside the guide mechanism. The friction coefficient of the catheter sliding is detected by the detection module, simulating the friction coefficient of the catheter caused by the patient's movement during use. Therefore, the catheter friction coefficient detection mechanism provides more comprehensive data when detecting catheters, improving the guidance significance of the detection results for the actual use of catheters.

[0021] 3. The present invention discloses a detection mechanism and method based on the friction coefficient of a urinary catheter. One end of the urinary catheter is inserted into the inside of a fixed block and limited by a clamping mechanism. The other end of the urinary catheter is inserted into the inside of an insertion block and limited by a clamping rod. A servo motor is activated, causing the connecting rod to drive the insertion block to rotate and rewind the urinary catheter. This allows the urinary catheter to slide within the guiding mechanism and the cleaning temperature control mechanism. After the urinary catheter is tested, the fixed block is released from its position, allowing the urinary catheter to enter the storage box for storage. The flip-top sealing cap makes it easier for staff to retrieve the urinary catheter. This not only improves the ease of use of the detection mechanism based on the friction coefficient of the urinary catheter but also facilitates the storage of the urinary catheter. Attached Figure Description

[0022] The invention will now be further described with reference to the accompanying drawings.

[0023] Figure 1 This is a schematic diagram of the structure of the present invention.

[0024] Figure 2 This is a structural schematic diagram from a second perspective of the present invention.

[0025] Figure 3 This is a cross-sectional structural diagram of the present invention.

[0026] Figure 4 This is a schematic diagram of the cleaning and temperature control mechanism in this invention.

[0027] Figure 5 This is a schematic diagram of the structure of the guide ring, mounting bracket and toothed ring in this invention.

[0028] Figure 6 This is a schematic diagram of the temperature control component in this invention.

[0029] Figure 7 This is a schematic diagram of the threaded rod, water collection box, and drive gear in this invention.

[0030] Figure 8This is a schematic diagram of the adjustment mechanism in this invention.

[0031] Figure 9 This is a schematic diagram of the clamping mechanism in this invention.

[0032] Figure 10 This is a schematic diagram of the winding mechanism in this invention.

[0033] In the diagram: 1. Winding mechanism; 101. Mounting base plate; 102. Storage box; 103. Guide screw rod; 104. Insert block; 105. Clamping rod; 106. Connecting rod; 107. Servo motor; 108. Sealing cover; 109. Observation window; 2. Guiding mechanism; 201. Guide box; 202. Guide groove; 203. Detection module; 3. Cleaning temperature control mechanism; 301. Temperature control component; 3011. Flange; 3012. Hollow ring; 3013. Sponge wipe; 3014. Mounting box; 3015. Controller; 3016. Temperature sensor; 3017. Heating module; 3018, Cooling module; 302, Guide ring; 303, Mounting bracket; 304, Gear ring; 305, Drive gear; 306, Threaded rod; 307, Water collection box; 308, Drive motor; 309, Extrusion plate; 310, Spray pipe; 4, Adjustment mechanism; 401, Support rod; 402, Fixing plate; 403, Mounting plate; 404, Sliding groove; 405, Rotating plate; 406, Rotating rod; 407, DC motor; 5, Clamping mechanism; 501, Fixing block; 502, Abutting plate; 503, Threaded cylinder; 504, Screw; 505, Limiting plate. Detailed Implementation

[0034] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0035] This invention provides a detection mechanism based on the friction coefficient of a urinary catheter, with reference to... Figure 1 - Figure 10 The present invention provides three embodiments.

[0036] Example 1 includes a winding mechanism 1, a guide mechanism 2 mounted on the upper surface of the winding mechanism 1, a cleaning and temperature control mechanism 3 mounted on one side of the guide mechanism 2, and an adjustment mechanism 4 mounted on the surface of the cleaning and temperature control mechanism 3. The cleaning and temperature control mechanism 3 includes a temperature control component 301 mounted on one side of the guide mechanism 2, a guide ring 302 mounted on one side of the temperature control component 301, a mounting bracket 303 fixedly connected inside the guide ring 302, and a toothed ring 304 rotatably connected inside the mounting bracket 303. The mounting bracket 303 ensures greater stability of the toothed ring 304 when rotating inside the guide ring 302, thereby improving the stability of the sponge pad on the guide mechanism 2. The catheter is more stable during cleaning. The surface of the toothed ring 304 is engaged with a drive gear 305 that is rotatably connected to the guide ring 302. The inside of the toothed ring 304 is provided with a sponge pad. A threaded rod 306 is fixedly connected to one side of the drive gear 305. A water collection box 307 is sleeved on the surface of the threaded rod 306. A drive motor 308 with its output end fixedly connected to the threaded rod 306 is fixedly connected inside the water collection box 307. A compression plate 309 that is slidably connected to the inside of the water collection box 307 is threadedly connected to the surface of the threaded rod 306. Spray pipes 310 corresponding to the guide ring 302 are fixedly connected to both edges on one side of the water collection box 307.

[0037] The catheter is inserted into the guide ring 302 and the toothed ring 304. The drive motor 308 is started, and its output end drives the threaded rod 306 to rotate, thereby causing the squeezing plate 309 to slide inside the water collection box 307, squeezing the water inside the water collection box 307. This causes the water to be sprayed onto the surface of the catheter through the spray pipe 310. At the same time, the rotation of the threaded rod 306 causes the drive gear 305 to rotate, which in turn causes the toothed ring 304 to mesh and rotate. This causes the toothed ring 304 to drive the sponge pad to rotate on the surface of the catheter, cleaning the dust on the surface of the catheter.

[0038] The temperature control assembly 301 includes two flanges 3011 that are fixedly connected to the guide ring 302 and the guide mechanism 2, respectively. The two flanges 3011 are fixedly connected to the opposite sides of a hollow ring 3012 corresponding to the guide ring 302. A sponge 3013 is fixedly connected inside the hollow ring 3012. An installation box 3014 that fits against the threaded rod 306 is fixedly connected to the upper surface of the hollow ring 3012. With the sponge 3013, when the catheter is cleaned and inserted into the hollow ring 3012, the sponge 3013 wipes away the dust and water mixture on the surface of the catheter, thereby avoiding the dust and water mixture from affecting the subsequent detection of the friction coefficient of the catheter.

[0039] The temperature control assembly 301 also includes a controller 3015 fixedly connected inside the mounting box 3014. A temperature sensor 3016 corresponding to the hollow ring 3012 is fixedly connected to the lower surface of the controller 3015. A heating module 3017 and a cooling module 3018 connected to the controller 3015 are fixedly connected to both sides of the hollow ring 3012, respectively. Arc-shaped plates corresponding to the spray pipe 310 are fixedly connected to both sides of the upper surface of the mounting box 3014. The temperature of the catheter is detected by the temperature sensor 3016. The controller 3015 compares the temperature detected by the temperature sensor 3016 with the set temperature. Based on the set temperature, the controller 3015 activates the heating module 3017 or the cooling module 3018 to control the temperature of the catheter surface. This allows the catheter to simulate the temperature during the testing process, improving the accuracy of the catheter friction coefficient detection results.

[0040] In Example 2, based on Example 1, the adjustment mechanism 4 further includes four support rods 401 that are respectively fixedly connected to the storage box 102 and connected to the mounting base plate 101. Two support rods 401 are fixedly connected to one side of a fixing plate 402. The opposite sides of the two fixing plates 402 are rotatably connected to a mounting plate 403 via a pivot. The support rods 401 and the fixing plates 402 cooperate to support the mounting plate 403, thereby making the mounting plate 403 more stable during use. A sliding groove 404 is provided on the surface of the mounting plate 403. A clamping mechanism 5 that is slidably connected to the mounting plate 403 is slidably connected inside the sliding groove 404.

[0041] The clamping mechanism 5 includes a fixing block 501 magnetically attracted inside the sliding groove 404. The sliding groove 404 makes the fixing block 501 more stable when moving. A pressing plate 502 is slidably connected inside the fixing block 501. A threaded cylinder 503 that is slidably connected to the fixing block 501 is fixedly connected to the upper surface of the pressing plate 502. A screw 504 is threaded inside the threaded cylinder 503. A limiting plate 505 that is fixedly connected to the fixing block 501 is sleeved on the surface of the screw 504.

[0042] One end of the catheter is inserted into the fixed block 501. The screw 504 is rotated, causing the threaded cylinder 503 to slide on the surface of the screw 504, thereby driving the clamping plate 502 to move synchronously. The clamping plate 502 and the fixed block 501 clamp one end of the catheter. The screw 504 and the threaded cylinder 503 are limited by the setting of the limiting plate 505.

[0043] The adjustment mechanism 4 also includes a rotating plate 405 that is attached to the lower surface of the mounting plate 403. A rotating rod 406 is fixedly connected to the surface of the rotating plate 405 and is rotatably connected to the mounting base plate 101 via a bearing seat. A DC motor 407 that is fixedly connected to the mounting base plate 101 is installed at one end of the rotating rod 406. The output end of the DC motor 407 is connected to the rotating rod 406 via a belt.

[0044] By starting the DC motor 407, its output end drives the rotating rod 406 to rotate, which in turn causes the rotating plate 405 to drive the mounting plate 403 to rotate. This causes the fixing block 501 to rotate synchronously with the catheter, pulling the catheter to slide inside the guide mechanism 2. This simulates the situation where the catheter moves due to the patient's movement during catheterization. As a result, the catheter friction coefficient detection mechanism can obtain more comprehensive data when detecting the catheter friction coefficient, thus improving the guidance significance of the test results for the actual use of the catheter.

[0045] In Example 3, based on Examples 1 and 2, the guiding mechanism 2 further includes a guide box 201 fixedly connected to one side of the storage box 102 and communicating with the storage box 102. The guide box 201 has a guide groove 202 corresponding to the existing catheter inside. The guide box 201 and the guide groove 202 guide the sliding of the catheter, making the catheter more stable when sliding. The guide groove 202 is connected to the storage box 102. The water collection box 307 is fixedly connected to the upper surface of the guide box 201. One of the flanges 3011 is fixedly connected to the guide box 201 and communicates with the guide box 201. The guide box 201 has a detection module 203 corresponding to the guide groove 202 fixedly connected inside. The detection module 203 detects the friction coefficient of the catheter during the sliding process and transmits the detection result to the existing computer for display, which facilitates the staff to detect the friction coefficient of the catheter.

[0046] The winding mechanism 1 includes a mounting base plate 101. A storage box 102 is inserted into one side of the upper surface of the mounting base plate 101. A guide screw rod 103 is fixedly connected inside the storage box 102. A plug block 104 that is rotatably connected to the storage box 102 is attached to one side of the guide screw rod 103. A clamping rod 105 that is slidably connected inside the storage box 102 is threaded to one side of the plug block 104. After limiting one end of the catheter inside the fixing block 501, the other end of the catheter is inserted into the plug block 104. The clamping rod 105 is rotated to clamp the other end of the catheter, thereby connecting the catheter to the plug block 104 and allowing the catheter to pass through the guide mechanism 2 and the cleaning temperature control mechanism 3.

[0047] The winding mechanism 1 also includes a connecting rod 106 fixedly connected to the lower surface of the insertion block 104. One end of the connecting rod 106 is fixedly connected to a servo motor 107 fixedly connected to the storage box 102. The output end of the servo motor 107 is fixedly connected to the connecting rod 106. When the servo motor 107 is started, its output end drives the connecting rod 106 to rotate, thereby causing the insertion block 104 to rotate synchronously. This causes the insertion block 104 to drive the catheter to rotate synchronously, causing the catheter to wind up on the surface of the insertion block 104, thereby pulling the catheter to slide inside the guide mechanism 2. The sliding friction coefficient of the catheter is detected by the detection module 203. The surface of the storage box 102 is hinged with a sealing... The cover 108 has an observation window 109 on its surface that corresponds to the guide screw rod 103. The cover 108 seals the storage box 102, and the observation window 109 allows staff to easily inspect the inside of the storage box 102, preventing the catheter from getting stuck inside and affecting its sliding. A buckle connected to the storage box 102 is fixedly connected to one side of the cover 108. By releasing the buckle, the cover 108 can be flipped over on the storage box 102, exposing the storage box 102 and the guide screw rod 103, making it easier for staff to remove the catheter and thus facilitating catheter inspection.

[0048] A method for detecting the friction coefficient of a urinary catheter, the method employing the aforementioned detection mechanism based on the friction coefficient of a urinary catheter, includes the following steps: S1. Insert one end of the catheter into the fixed block 501 and rotate the screw 504 to make the threaded cylinder 503 drive the clamping plate 502 to limit the catheter and clamp one end of the catheter. At the same time, insert the other end of the catheter into the guide mechanism 2 and the winding mechanism 1 so that the catheter is inserted into the insertion block 104. And limit the other end of the catheter by rotating the clamping rod 105. S2. Start the servo motor 107, and the plug block 104 drives the catheter to slide inside the guide mechanism 2, guide ring 302 and toothed ring 304. At the same time, start the drive motor 308, so that the squeezing plate 309 sprays the water inside the water collection box 307 onto the catheter through the spray pipe 310. And through the rotation of the threaded rod 306, the drive gear 305 drives the toothed ring 304 to rotate. Through the interaction of water flow and sponge pad, the dust on the surface of the catheter is cleaned. S3: Based on the sliding of the catheter inside the hollow ring 3012, the dust and water droplets on the surface of the catheter are wiped away by the sponge 3013, the temperature of the catheter is monitored by the temperature sensor 3016, and the temperature of the catheter is controlled by the cooperation of the controller 3015, the heating module 3017 and the cooling module 3018 to simulate the temperature of the catheter during actual use. S4: When the catheter slides, the catheter is in contact with the detection module 203. The detection module 203 detects the friction coefficient of the catheter sliding, and the servo motor 107 is turned off. Based on the adjustment mechanism 4, the rotating plate 405 drives the mounting plate 403 to rotate on the surface of the mounting base plate 101, which drives the fixing block 501 and the catheter to rotate, simulating the situation where the catheter slides due to the patient squatting. Based on the detection module 203, the friction coefficient of the catheter is detected during the sliding process, so that the catheter friction coefficient detection mechanism simulates the situation of the catheter in use. S5: After testing the friction coefficient of the urinary catheter, rotate the screw 504 to disengage the urinary catheter from the fixing block 501. Then, by starting the servo motor 107, the urinary catheter is stored inside the storage box 102. The urinary catheter is guided by the guide screw 103 to complete the storage of the urinary catheter. The buckle is released, causing the sealing cover 108 to flip over. The staff can then take out the urinary catheter, completing the test of the urinary catheter.

[0049] The terms "front," "back," "left," "right," "top," and "bottom" all refer to the figures in the accompanying drawings. Figure 1 Based on the perspective of the observer, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0050] In the description of this invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this invention.

[0051] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A detection mechanism based on the friction coefficient of a urinary catheter, characterized in that: It includes a winding mechanism (1), a guide mechanism (2) is installed on the upper surface of the winding mechanism (1), a cleaning and temperature control mechanism (3) is installed on one side of the guide mechanism (2), and an adjustment mechanism (4) is installed on the surface of the cleaning and temperature control mechanism (3). The cleaning temperature control mechanism (3) includes a temperature control component (301) installed on one side of the guide mechanism (2). A guide ring (302) is installed on one side of the temperature control component (301). A mounting bracket (303) is fixedly connected inside the guide ring (302). A gear ring (304) is rotatably connected inside the mounting bracket (303). A drive gear (305) that is rotatably connected to the guide ring (302) is engaged on the surface of the gear ring (304). A sponge pad is provided inside the gear ring (304). The drive gear (305) A threaded rod (306) is fixedly connected to one side of the water collection box (307), and a water collection box (307) is sleeved on the surface of the threaded rod (306). A drive motor (308) with its output end fixedly connected to the inside of the water collection box (307) is fixedly connected to the inside of the water collection box (308). A pressing plate (309) that is slidably connected to the surface of the threaded rod (306) is threadedly connected to the inside of the water collection box (307). Spray pipes (310) corresponding to the guide ring (302) are fixedly connected to both edges of one side of the water collection box (307).

2. The detection mechanism based on the friction coefficient of a urinary catheter according to claim 1, characterized in that: The temperature control assembly (301) includes two flanges (3011) that are fixedly connected to the guide ring (302) and the guide mechanism (2) respectively. The two flanges (3011) are fixedly connected to the opposite sides of the hollow ring (302) with a hollow ring (3012) corresponding to the guide ring (302). A sponge (3013) is fixedly connected inside the hollow ring (3012). A mounting box (3014) that fits against the threaded rod (306) is fixedly connected to the upper surface of the hollow ring (3012).

3. The detection mechanism based on the friction coefficient of a urinary catheter according to claim 2, characterized in that: The temperature control component (301) also includes a controller (3015) fixedly connected inside the mounting box (3014). A temperature sensor (3016) corresponding to the hollow ring (3012) is fixedly connected to the lower surface of the controller (3015). A heating module (3017) and a cooling module (3018) connected to the controller (3015) are fixedly connected to both sides of the hollow ring (3012). An arc-shaped plate corresponding to the spray pipe (310) is fixedly connected to both sides of the upper surface of the mounting box (3014).

4. The detection mechanism based on the friction coefficient of a urinary catheter according to claim 3, characterized in that: The winding mechanism (1) includes a mounting base plate (101), a storage box (102) is inserted into one side of the upper surface of the mounting base plate (101), a guide screw rod (103) is fixedly connected inside the storage box (102), a plug block (104) is attached to one side of the guide screw rod (103) and is rotatably connected to the storage box (102), and a clamping rod (105) is threadedly connected to one side of the plug block (104) and is slidably connected to the inside of the storage box (102).

5. The detection mechanism based on the friction coefficient of a urinary catheter according to claim 4, characterized in that: The winding mechanism (1) further includes a connecting rod (106) fixedly connected to the lower surface of the plug block (104). One end of the connecting rod (106) is fixedly connected to a servo motor (107) fixedly connected to the storage box (102). The output end of the servo motor (107) is fixedly connected to the connecting rod (106). The surface of the storage box (102) is hinged to a sealing cover (108). The surface of the sealing cover (108) is provided with an observation window (109) corresponding to the guide screw rod (103). One side of the sealing cover (108) is fixedly connected to a buckle connected to the storage box (102).

6. The detection mechanism based on the friction coefficient of a urinary catheter according to claim 5, characterized in that: The guiding mechanism (2) includes a guide box (201) fixedly connected to one side of the storage box (102) and communicating with the storage box (102). The guide box (201) has a guide groove (202) corresponding to the existing catheter inside. The guide groove (202) is communicating with the storage box (102). The water collection box (307) is fixedly connected to the upper surface of the guide box (201). One of the flanges (3011) is fixedly connected to the guide box (201) and communicating with the guide box (201). The guide box (201) has a detection module (203) corresponding to the guide groove (202) fixedly connected inside.

7. The detection mechanism based on the friction coefficient of a urinary catheter according to claim 6, characterized in that: The adjustment mechanism (4) includes four support rods (401) that are fixedly connected to the storage box (102) and the mounting base plate (101). Two of the support rods (401) are fixedly connected to one side of a fixing plate (402). The opposite sides of the two fixing plates (402) are rotatably connected to a mounting plate (403) via a rotating shaft. The surface of the mounting plate (403) is provided with a sliding groove (404). The inside of the sliding groove (404) is slidably connected to a clamping mechanism (5) that is slidably connected to the mounting plate (403).

8. The detection mechanism based on the friction coefficient of a urinary catheter according to claim 7, characterized in that: The clamping mechanism (5) includes a fixing block (501) magnetically attracted inside the sliding groove (404). A pressing plate (502) is slidably connected inside the fixing block (501). A threaded cylinder (503) slidably connected to the fixing block (501) is fixedly connected to the upper surface of the pressing plate (502). A screw (504) is threadedly connected inside the threaded cylinder (503). A limiting plate (505) fixedly connected to the fixing block (501) is sleeved on the surface of the screw (504).

9. The detection mechanism based on the friction coefficient of a urinary catheter according to claim 8, characterized in that: The adjustment mechanism (4) also includes a rotating plate (405) attached to the lower surface of the mounting plate (403). A rotating rod (406) is fixedly connected to the surface of the rotating plate (405) and rotatably connected to the mounting base plate (101) via a bearing seat. A DC motor (407) is fixedly connected to the mounting base plate (101) at one end of the rotating rod (406). The output end of the DC motor (407) is connected to the rotating rod (406) via a belt.

10. A method for detecting the coefficient of friction of a urinary catheter, the method employing the detection mechanism described in any one of claims 1-9, characterized in that: Includes the following steps: S1. Insert one end of the catheter into the fixed block (501) and rotate the screw (504) to make the threaded cylinder (503) drive the clamping plate (502) to limit the catheter and clamp one end of the catheter. At the same time, insert the other end of the catheter into the guide mechanism (2) and the winding mechanism (1) so that the catheter is inserted into the insertion block (104) and the other end of the catheter is limited by rotating the clamping rod (105). S2. Start the servo motor (107), and the plug block (104) drives the catheter to slide inside the guide mechanism (2), guide ring (302) and toothed ring (304). At the same time, start the drive motor (308), so that the squeezing plate (309) sprays the water inside the water collection box (307) onto the catheter through the spray pipe (310). And through the rotation of the threaded rod (306), the drive gear (305) drives the toothed ring (304) to rotate. Through the interaction of water flow and sponge pad, the dust on the surface of the catheter is cleaned. S3: Based on the sliding of the catheter inside the hollow ring (3012), the dust and water droplets on the surface of the catheter are wiped away by the sponge (3013), the temperature of the catheter is monitored by the temperature sensor (3016), and the temperature of the catheter is controlled by the cooperation of the controller (3015), the heating module (3017) and the cooling module (3018) to simulate the temperature of the catheter in actual use. S4: When the catheter slides, the catheter is in contact with the detection module (203). The friction coefficient of the catheter sliding is detected by the detection module (203), and the servo motor (107) is turned off. Based on the adjustment mechanism (4), the rotating plate (405) drives the mounting plate (403) to rotate on the surface of the mounting base plate (101), which drives the fixing block (501) and the catheter to rotate, simulating the situation where the catheter slides due to the patient squatting. Based on the detection module (203) to detect the friction coefficient of the catheter during the sliding process, the catheter friction coefficient detection mechanism simulates the situation of the catheter in use. S5: After testing the friction coefficient of the catheter, rotate the screw (504) to disengage the catheter from the fixing block (501), and start the servo motor (107) to store the catheter inside the storage box (102). Guide the catheter through the setting of the guide screw (103) to finally complete the storage of the catheter, release the buckle, and flip the sealing cover (108). The staff takes out the catheter and completes the test of the catheter.

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