Medical urine guide pants with one-way flow guide channel

Abstract

The utility model discloses a medical urine guide pants with a one-way flow guide channel, which relates to the technical field of medical nursing materials and comprises a pants body, an absorption component and a flow guide component. A containing bag used for containing the absorption assembly is arranged on the inner side of the pants body, and an opening of the containing bag is connected with the inner side of the pants body through an elastic belt. The absorption assembly is of a multi-layer structure and comprises a waterproof film on the bottom layer, liquid absorption cotton on the middle layer and a flow guide fabric on the top layer. The flow guide assembly is mounted at the top of the absorption assembly and is fixed on the surface of the flow guide fabric through a hot-pressing process; the flow guide assembly comprises a plurality of flow guide strips and one-way flow guide valves communicated with the flow guide strips. According to the medical urine guide diaper with the one-way flow guide channel, through the flow guide strip and the one-way flow guide valve, the flow guide strip can quickly guide urine to flow to the absorption assembly, and the one-way flow guide valve effectively prevents liquid from flowing back to the skin surface, so that the local moisture and infection risk is reduced.

Description

Technical Field

[0001] This utility model relates to the field of medical care products technology, specifically to a medical catheter with a one-way flow channel. Background Technology

[0002] Medical catheterization pants are generally used for patients' urine management. By absorbing and storing urine, they keep patients dry and reduce the burden of care. Through reasonable structural design, catheterization pants must meet multiple requirements, including ease of dressing and doffing, leak-proof performance, and comfort.

[0003] Existing medical catheterization pants, in practical applications, typically employ simple absorbent layers and isolation structures. While these meet basic requirements for urine absorption and leak prevention, they have limitations in unidirectional flow guidance and backflow prevention. For example, a pair of pants for intermittent catheterization patients (publication number CN110338491B) uses a zipper and diaper pad to quickly expose the perineal area and prevent urine from soaking the pants, but it lacks a unidirectional flow channel, potentially leading to urine backflow and increasing the risk of local dampness and infection. Furthermore, its reliance on physical isolation for urine absorption results in low absorption efficiency and requires frequent changes, increasing the difficulty of care. Meanwhile, a functional pair of pants designed for easy donning and doffing by lower limb patients (publication number CN114128943B), although equipped with a flow-guiding device, lacks a unidirectional flow channel, making it prone to causing discomfort or infection due to urine backflow. Its complex connection structure may increase production costs and maintenance difficulty, limiting large-scale adoption.

[0004] The aforementioned issues demonstrate that traditional medical catheters fall short in meeting the demands for unidirectional flow guidance, backflow prevention, and efficient absorption in complex medical settings. Therefore, there is an urgent need for a medical catheter with a unidirectional flow channel to provide a more intelligent, efficient, and adaptable solution for changing environments. Utility Model Content

[0005] This invention provides a medical catheter with a unidirectional flow channel, aiming to solve the problems of insufficient unidirectional flow guidance, inadequate backflow prevention, and low absorption efficiency in existing technologies. The specific solution is as follows:

[0006] A medical catheterization trouser with a one-way flow channel includes a trouser body, an absorbent component, and a flow-guiding component. The inner side of the trouser body has a receiving bag for accommodating the absorbent component, and the opening of the receiving bag is connected to the inner side of the trouser body via an elastic band. The absorbent component consists of a multi-layer structure, including a bottom waterproof membrane, a middle absorbent cotton layer, and a top flow-guiding fabric. The flow-guiding component is installed on top of the absorbent component and fixed to the surface of the flow-guiding fabric by a heat-pressing process. The flow-guiding component includes multiple flow-guiding strips and one-way flow-guiding valves communicating with them. The flow-guiding strips are evenly distributed along the longitudinal direction of the trouser body, and each flow-guiding strip has a one-way flow-guiding valve at its end, with the outlet of the one-way flow-guiding valve facing the central area of ​​the absorbent component. When urine flows into the flow-guiding strips, it enters the absorbent component through the one-way flow-guiding valves, preventing backflow of liquid to the skin surface.

[0007] As a preferred embodiment of the medical catheter with a unidirectional flow channel described in this utility model, the flow guide strip has multiple microporous channels inside, and the diameter of the microporous channels gradually decreases from the inlet end of the flow guide strip towards the unidirectional flow valve; a flexible baffle is installed inside the unidirectional flow valve, one end of which is hinged to the inner wall of the unidirectional flow valve, and the other end is a free end, which naturally fits against the outlet end of the unidirectional flow valve without external force; when urine flows into the unidirectional flow valve, the flexible baffle opens under liquid pressure, allowing the liquid to flow to the absorption component; when the liquid stops flowing, the flexible baffle returns to its original position, closing the outlet end of the unidirectional flow valve.

[0008] As a preferred embodiment of the medical catheter with a one-way flow channel described in this utility model, the central area of ​​the absorbent component is provided with a liquid storage chamber, the bottom of which is separated from the absorbent cotton by a diaphragm; the diaphragm is provided with multiple leakage holes, and the pore size of the leakage holes is smaller than the fiber gaps of the absorbent cotton; when urine enters the liquid storage chamber, it slowly permeates to the absorbent cotton through the leakage holes, forming a staged absorption effect.

[0009] As a preferred embodiment of the medical catheter pants with a one-way flow channel described in this utility model, the waistband of the pants is provided with an adjustable elastic band, and the two ends of the elastic band are respectively connected to the outside of the pants via Velcro; the sides of the pants are provided with breathable mesh fabric, and the edges of the breathable mesh fabric are fixedly connected to the pants by stitching; multiple support ribs are embedded inside the breathable mesh fabric, one end of the support rib is connected to the outside of the pants, and the other end extends to the inside of the pants and contacts the outer wall of the receiving bag; the support ribs are used to improve the overall breathability of the pants and reduce friction between the receiving bag and the skin.

[0010] As a preferred embodiment of the medical catheter pants with a one-way flow channel according to the present invention, wherein: the surface of the flow-guiding fabric is coated with a hydrophilic coating; the surface of the hydrophilic coating is provided with a plurality of raised structures; the raised structures are used to increase the contact area between the flow-guiding fabric and the skin, while reducing the residence time of liquid on the surface.

[0011] As a preferred embodiment of the medical diaper with a one-way flow channel described in this utility model, wherein: a humidity sensor is provided on the outside of the absorbent component, the probe of the humidity sensor passes through the waterproof membrane and extends into the interior of the absorbent cotton; the signal output terminal of the humidity sensor is connected to an alarm device via a wire, and the alarm device is installed on the outside of the diaper; when the humidity of the absorbent cotton reaches a preset value, the humidity sensor triggers the alarm device to issue a prompt signal.

[0012] As a preferred embodiment of the medical catheter pants with a unidirectional flow channel described in this utility model, the inner side of the pants body is provided with multiple positioning buckles, and the base of the positioning buckles is fixed to the inner side of the pants body by adhesive; the edge of the absorbent component is provided with positioning holes corresponding to the positioning buckles, and the claws of the positioning buckles pass through the positioning holes and bend and lock, fixing the absorbent component to the inner side of the pants body; the positioning buckles are used to prevent the absorbent component from shifting during use and to ensure that the relative position of the flow channel component and the absorbent component remains stable.

[0013] As a preferred embodiment of the medical catheter pants with a one-way flow channel described in this utility model, the top of the liquid storage cavity is provided with a filter screen; the edge of the filter screen is fixedly connected to the inner wall of the liquid storage cavity by ultrasonic welding process; the filter screen is used to intercept impurities in urine and prevent them from entering the absorbent cotton and affecting the absorption performance.

[0014] As a preferred embodiment of the medical catheter pants with a one-way flow channel described in this utility model, the outer side of the pants body is provided with a replacement window, the edge of which is connected to the pants body by a zipper; the inner side of the replacement window is provided with a sealing strip, the sealing strip is made of silicone, and the cross-section of the sealing strip is U-shaped; the sealing strip is used to enhance the sealing performance of the replacement window and prevent urine from leaking from the replacement window.

[0015] As a preferred embodiment of the medical catheter pants with a one-way flow channel according to the present invention, wherein: the top of the flow guide strip is provided with a drainage groove; the bottom of the drainage groove is connected to the microporous channel through an arc transition; the drainage groove is used to guide urine to flow quickly into the flow guide strip, reducing the diffusion range of liquid on the surface of the flow guide fabric.

[0016] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0017] 1. This device uses a diversion strip and a one-way diversion valve. The diversion strip can quickly guide urine to the absorption component, while the one-way diversion valve can effectively prevent liquid from flowing back to the skin surface, thereby reducing the risk of local dampness and infection.

[0018] 2. The device uses a storage chamber and a diaphragm. The storage chamber can temporarily store urine, while the leakage holes on the diaphragm enable phased absorption, extending the service life of the absorption components and reducing the need for frequent replacement.

[0019] 3. The device uses a humidity sensor and an alarm device. The humidity sensor monitors the humidity changes of the absorbent cotton in real time and triggers the alarm device when the absorbent cotton is close to saturation, reminding nursing staff to replace the absorbent components in time, thereby improving nursing efficiency.

[0020] 4. The device uses support ribs and breathable mesh fabric. The support ribs can reduce direct contact between the storage bag and the skin, while the breathable mesh fabric can improve the overall breathability of the pants and improve the patient's comfort.

[0021] 5. The device uses positioning buckles and positioning holes. The positioning buckles can firmly fix the absorption component and prevent it from shifting during use, thus ensuring the synergistic effect of the flow guiding component and the absorption component. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention, showing the layout relationship of the pants body, the absorption component, and the flow guiding component.

[0024] Figure 2 This utility model Figure 1 Enlarged view of point A.

[0025] Figure 3 for Figure 1 A partial disassembly diagram.

[0026] Figure 4 for Figure 3 Enlarged view of point B.

[0027] Figure 5 for Figure 3 Enlarged view of point C.

[0028] Figure 6 This is a cross-sectional structural diagram of the compartment containing the bag.

[0029] Explanation of reference numerals in the attached figures:

[0030] 1. Pants body; 2. Absorbent assembly; 3. Drainage assembly; 4. Receptacle bag; 5. Waterproof membrane; 6. Absorbent cotton; 7. Drainage fabric; 8. Drainage strip; 9. One-way drainage valve; 10. Flexible baffle; 11. Liquid storage chamber; 12. Diaphragm; 13. Leakage hole; 14. Breathable mesh fabric; 15. Support rib; 16. Humidity sensor; 17. Alarm device; 18. Positioning buckle; 19. Filter screen; 20. Replacement window. Detailed Implementation

[0031] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0032] This utility model provides a medical catheter with a one-way flow channel, the structure of which is as follows: Figures 1 to 6 As shown in the accompanying drawings, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. The pant body 1 is the basic structure of this medical catheter pants, and its inner side is provided with a receiving bag 4 for fixing the absorbent component 2. The opening edge of the receiving bag 4 is connected to the inner side of the pant body 1 by an elastic band. The elastic band is made of silicone or flexible rubber, which ensures a tight fit between the receiving bag 4 and the pant body 1 while avoiding pressure on the user's skin. The absorbent component 2 consists of a bottom waterproof membrane 5, a middle absorbent cotton 6, and a top drainage fabric 7. The layers are fixedly connected by a heat-pressing process to ensure that delamination does not occur during use.

[0033] The flow guiding assembly 3 is mounted on top of the absorption assembly 2 and is tightly bonded to the surface of the flow guiding fabric 7 via a hot-pressing process. The flow guiding assembly 3 includes multiple flow guiding strips 8 and unidirectional flow guiding valves 9 connected to them, such as... Figure 3 As shown. The guide strips 8 are evenly distributed along the longitudinal direction of the trouser body 1. Each guide strip 8 has a one-way flow valve 9 at its end, with the outlet of the one-way flow valve 9 facing the central area of ​​the absorption assembly 2. The guide strip 8 has multiple microporous channels inside, with the diameter of the microporous channels gradually decreasing from the inlet end to the one-way flow valve 9. This design accelerates urine flow and reduces liquid retention time. A flexible baffle 10 is installed inside the one-way flow valve 9. One end of the flexible baffle 10 is hinged to the inner wall of the one-way flow valve 9, while the other end is free and naturally conforms to the outlet end of the one-way flow valve 9 without external force. When urine flows into the one-way flow valve 9, the flexible baffle 10 opens under liquid pressure, allowing the liquid to flow to the absorption assembly 2; when the liquid stops flowing, the flexible baffle 10 returns to its original position, closing the outlet end of the one-way flow valve 9, thus achieving the one-way flow function.

[0034] The central area of ​​the absorbent assembly 2 is provided with a liquid storage chamber 11, and the bottom of the liquid storage chamber 11 is separated from the absorbent cotton 6 by a diaphragm 12, such as Figure 2 As shown, the diaphragm 12 has multiple permeation holes 13, the pore size of which is smaller than the fiber gaps of the absorbent cotton 6, to achieve a staged absorption effect. After urine enters the storage chamber 11, it slowly permeates into the absorbent cotton 6 through the permeation holes 13, thereby extending the service life of the absorption assembly 2. A filter screen 19 is provided at the top of the storage chamber 11, and its edge is fixedly connected to the inner wall of the storage chamber 11 by ultrasonic welding. The filter screen 19 is used to intercept impurities in the urine, preventing them from entering the absorbent cotton 6 and affecting the absorption performance.

[0035] The waistband of the pants 1 has an adjustable elastic band, with both ends connected to the outer side of the pants 1 via Velcro, allowing for easy adjustment of the tightness according to the user's body shape. Breathable mesh fabric 14 is provided on both sides of the pants 1, with the edges of the mesh fabric 14 fixed to the pants 1 via stitching. Multiple support ribs 15 are embedded inside the breathable mesh fabric 14. One end of each support rib 15 is connected to the outer side of the pants 1, and the other end extends to the inner side of the pants 1 and contacts the outer wall of the storage pocket 4. The support ribs 15 not only improve the overall breathability of the pants 1 but also reduce friction between the storage pocket 4 and the skin, thereby improving user comfort.

[0036] The surface of the drainage fabric 7 is coated with a hydrophilic coating and features multiple raised structures. This raised structure design increases the contact area between the drainage fabric 7 and the skin, while reducing the retention time of liquid on the surface. The top of the drainage strip 8 has a drainage groove, and the bottom connects to a microporous channel via an arc transition. The drainage groove guides urine to flow rapidly into the drainage strip 8, reducing the diffusion range of liquid on the surface of the drainage fabric 7.

[0037] A humidity sensor 16 is provided on the outside of the absorption component 2. The probe of the humidity sensor 16 passes through the waterproof membrane 5 and extends into the interior of the absorbent cotton 6, such as... Figure 6 As shown. The signal output terminal of the humidity sensor 16 is connected to the alarm device 17 via a wire. The alarm device 17 is installed on the outside of the pant body 1. When the humidity of the absorbent cotton 6 reaches a preset value, the humidity sensor 16 triggers the alarm device 17 to issue a warning signal, reminding the caregiver to replace the absorbent component 2 in time. Multiple positioning buckles 18 are provided on the inside of the pant body 1. The base of the positioning buckle 18 is fixed to the inside of the pant body 1 with adhesive. The edge of the absorbent component 2 has positioning holes corresponding to the positioning buckles 18. The claws of the positioning buckles 18 pass through the positioning holes and bend to lock, fixing the absorbent component 2 to the inside of the pant body 1. The positioning buckles 18 prevent the absorbent component 2 from shifting during use, ensuring that the relative position of the diversion component 3 and the absorbent component 2 remains stable.

[0038] The outer side of the trouser body 1 has a replacement window 20, the edge of which is connected to the trouser body 1 by a zipper, facilitating quick replacement of the absorbent component 2 by nursing staff. The inner side of the replacement window 20 has a sealing strip made of silicone with a U-shaped cross-section, used to enhance the sealing of the replacement window 20 and prevent urine leakage. The layout and connection of the above components together constitute a medical catheter trouser with a one-way flow channel. Its operating principle is as follows: When the user urinates, the urine first contacts the flow-guiding fabric 7 and enters the flow-guiding strip 8 through the drainage groove, then flows to the one-way flow-guiding valve 9 through the microporous channel. The flexible baffle 10 inside the one-way flow-guiding valve 9 opens under liquid pressure, allowing urine to enter the reservoir 11, and then slowly permeate to the absorbent cotton 6 through the seepage holes 13 on the diaphragm 12. During this process, the filter screen 19 intercepts impurities in the urine, and the humidity sensor 16 monitors the humidity change of the absorbent cotton 6 in real time, triggering the alarm device 17 to issue a warning signal when it approaches saturation. The design of the support ribs 15 and the breathable mesh fabric 14 further enhances the breathability and comfort of the pants 1, while the positioning buckle 18 and the replacement window 20 ensure the stability and easy replacement of the absorbent components 2.

[0039] To enable those skilled in the art to fully understand and implement this utility model, the specific implementation principle of this utility model is further explained below in conjunction with a specific application scenario.

[0040] First, when the user wears this medical catheterization pants, the pants 1 fits snugly against the user's body via an adjustable elastic band at the waist. Since the ends of the elastic band are connected by Velcro, caregivers can adjust the tightness according to the user's body shape, ensuring that the pants 1 is neither too tight and compressing the skin, nor too loose and causing a risk of leakage. At this time, the absorbent component 2 inside the containment bag 4 is secured to the inside of the pants 1 by a positioning buckle 18. The claws of the positioning buckle 18 pass through the positioning holes on the edge of the absorbent component 2 and bend to lock, preventing the absorbent component 2 from shifting during use, thereby ensuring that the relative position of the drainage component 3 and the absorbent component 2 remains stable.

[0041] Next, when the user urinates, the urine first comes into contact with the drainage fabric 7. The hydrophilic coating on the surface of the drainage fabric 7 can quickly absorb the urine, and the raised structure on its surface reduces the liquid retention time. The urine then flows into the microporous channel inside the drainage strip 8 along the drainage groove at the top of the drainage strip 8. The drainage groove is designed to connect with the microporous channel through an arc transition, allowing the urine to smoothly enter the drainage strip 8 while reducing the diffusion range of the liquid on the surface of the drainage fabric 7. In addition, the diameter of the microporous channel gradually decreases from the inlet end to the one-way drainage valve 9. This design utilizes the dynamic characteristics of liquid flow to accelerate the transfer of urine, thereby reducing the liquid retention time in the drainage strip 8.

[0042] As urine flows into the one-way flow guide valve 9, the flexible baffle 10 opens under liquid pressure, allowing urine to enter the reservoir 11. One end of the flexible baffle 10 is hinged to the inner wall of the one-way flow guide valve 9, while the other end is a free end that naturally conforms to the outlet end of the one-way flow guide valve 9 without external force. When the liquid stops flowing, the flexible baffle 10 returns to its original position, sealing the outlet end of the one-way flow guide valve 9, thereby effectively preventing urine backflow to the flow guide assembly 3. This one-way flow guide function significantly reduces the risk of urine reflux onto the skin surface, reducing the possibility of local dampness and infection.

[0043] After urine enters the storage chamber 11, it slowly permeates into the absorbent cotton 6 through the permeation holes 13 on the diaphragm 12. The pore size of the multiple permeation holes 13 on the diaphragm 12 is smaller than the interfiber gaps of the absorbent cotton 6. This design achieves a staged absorption effect, extending the service life of the absorption assembly 2. At the same time, the filter screen 19 at the top of the storage chamber 11 intercepts impurities in the urine, preventing them from entering the absorbent cotton 6 and affecting its absorption performance. The edges are fixedly connected to the inner wall of the storage chamber 11 using an ultrasonic welding process, ensuring that they will not fall off or deform during use.

[0044] During this process, the humidity sensor 16 monitors the humidity changes of the absorbent cotton 6 in real time. The probe of the humidity sensor 16 passes through the waterproof membrane 5 and extends into the interior of the absorbent cotton 6. When the humidity of the absorbent cotton 6 reaches a preset value, the humidity sensor 16 triggers the alarm device 17 to issue a warning signal, reminding the nursing staff to replace the absorbent component 2 in time. The alarm device 17 is installed on the outside of the trouser body 1 for easy response by the nursing staff. The combined use of the humidity sensor 16 and the alarm device 17 effectively improves nursing efficiency and avoids leakage problems caused by oversaturation of the absorbent cotton 6.

[0045] Meanwhile, the breathable mesh fabric 14 on both sides of the pant body 1 and the embedded support ribs 15 together enhance the overall breathability and comfort of the pant body 1. One end of the support rib 15 is connected to the outer side of the pant body 1, and the other end extends to the inner side of the pant body 1 and contacts the outer wall of the storage pocket 4, reducing friction between the storage pocket 4 and the skin, thereby reducing user discomfort. The edges of the breathable mesh fabric 14 are fixedly connected to the pant body 1 by stitching to ensure that it will not shift or be damaged during use.

[0046] When it is necessary to replace the absorbent assembly 2, caregivers can quickly complete the operation through the replacement window 20 on the outside of the pants 1. The edge of the replacement window 20 is connected to the pants 1 by a zipper, making it easy for caregivers to open and close. The inside of the replacement window 20 is equipped with a U-shaped silicone sealing strip to enhance the seal and prevent urine leakage from the replacement window 20. Caregivers simply need to unzip the zipper, remove the old absorbent assembly 2, and secure the new absorbent assembly 2 to the inside of the pants 1 using the positioning buckle 18 to complete the replacement.

[0047] In summary, this utility model, through the coordinated operation of the aforementioned components, achieves functions such as rapid urine drainage, unidirectional backflow prevention, staged absorption, and efficient monitoring. These functions not only improve the efficiency of medical catheterization pants but also significantly enhance patient comfort and the nursing experience. The above description is merely a preferred embodiment of this utility model and is not intended to limit its scope. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within its protection scope.

[0048] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A medical urine guide panty with one-way guide channel, comprising a panty body (1), an absorbing assembly (2) and a guide assembly (3), characterized in that: The inner side of the pants body (1) is provided with a receiving bag (4), and the absorbent component (2) is installed in the receiving bag (4); the absorbent component (2) is composed of a waterproof membrane (5), absorbent cotton (6) and a diversion fabric (7), with the waterproof membrane (5) located at the bottom layer, the absorbent cotton (6) located at the middle layer, and the diversion fabric (7) located at the top layer; the diversion component (3) includes multiple diversion strips (8) and a one-way diversion valve (9) connected to them, with the diversion strips (8) evenly distributed along the longitudinal direction of the pants body (1), and the outlet of the one-way diversion valve (9) facing the central area of ​​the absorbent component (2).

2. The medical urinary catheter pants with one-way flow channels according to claim 1, characterized in that, The guide strip (8) has multiple micro-hole channels inside, and the diameter of the micro-hole channels gradually decreases from the inlet end of the guide strip (8) to the one-way guide valve (9); a flexible baffle (10) is installed inside the one-way guide valve (9), one end of the flexible baffle (10) is hinged to the inner wall of the one-way guide valve (9), and the other end is a free end.

3. The medical urinary catheter pants with one-way flow channels according to claim 1, characterized in that, The absorption assembly (2) has a liquid storage chamber (11) in the center area, and the bottom of the liquid storage chamber (11) is separated from the absorbent cotton (6) by a diaphragm (12); the diaphragm (12) has a plurality of seepage holes (13).

4. The medical urinary catheter pants with one-way flow channels according to claim 1, characterized in that, The waistband of the pants (1) is provided with an adjustable elastic band, and the two ends of the elastic band are connected to the outside of the pants (1) by Velcro. The two sides of the pants (1) are provided with breathable mesh fabric (14), and multiple support ribs (15) are embedded in the breathable mesh fabric (14). One end of the support rib (15) is connected to the outside of the pants (1), and the other end extends to the inside of the pants (1) and contacts the outer wall of the storage bag (4).

5. The medical urinary catheter pants with one-way flow channels according to claim 1, characterized in that, The surface of the flow-guiding fabric (7) is coated with a hydrophilic coating; the surface of the hydrophilic coating is provided with multiple protrusions.

6. The medical urinary catheter pants with one-way flow channels according to claim 1, characterized in that, A humidity sensor (16) is provided on the outside of the absorbent assembly (2). The probe of the humidity sensor (16) passes through the waterproof membrane (5) and extends into the interior of the absorbent cotton (6). The signal output end of the humidity sensor (16) is connected to the alarm device (17) through a wire. The alarm device (17) is installed on the outside of the trouser body (1).

7. The medical urinary catheter pants with one-way flow channels according to claim 1, characterized in that, The inner side of the pants body (1) is provided with multiple positioning buckles (18), and the base of the positioning buckle (18) is fixed to the inner side of the pants body (1) by adhesive. The edge of the absorbent component (2) is provided with positioning holes corresponding to the positioning buckles (18), and the claws of the positioning buckle (18) bend and lock after passing through the positioning holes.

8. The medical urinary catheter pants with one-way flow channels according to claim 1, characterized in that, The outer side of the trouser body (1) is provided with a replacement window (20), and the edge of the replacement window (20) is connected to the trouser body (1) by a zipper; the inner side of the replacement window (20) is provided with a sealing strip, which is made of silicone and has a U-shaped cross section.

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