A urination device for post-renal biopsy care

Abstract

This invention discloses a urination device for post-renal biopsy care. The device features a nursing waistband that securely holds cotton wool. Multiple evenly distributed breathable abutment blocks and high-molecular-weight breathable material create a reasonable gap with the skin. Combined with an embedded drying channel and an airflow channel connected to the compression airbag inside the knee band, it enables "dynamic ventilation" during patient movement, effectively removing moisture and heat from the wound area, keeping the dressing dry, reducing the risk of infection, and improving wearing comfort. For urine collection, the device uses a series of tiered ring-shaped urine bags. Urine preferentially enters the bag closest to the waist. Once full, it is automatically diverted to the next level of urine bag via a buoyancy ball and trapezoidal sealing block, reducing shaking and centrifugal force during movement, preventing discomfort or bag dislodgement. When a urine bag is full, a feedback strip breaks, providing a tactile reminder, allowing the patient to change the bag promptly and preventing urine backflow or leakage, significantly improving nursing safety and patient self-care ability.

Description

Technical Field

[0001] This invention relates to the field of urination devices for nursing care, and more specifically, to a urination device for post-renal biopsy nursing care. Background Technology

[0002] Currently, to ensure safe healing of the puncture site after a kidney biopsy, patients often need to rest in bed or restrict their activity appropriately in the early stages. To facilitate care and reduce the frequency of patients getting up, urinary catheters and portable urine bags are commonly used in clinical practice for urination management. Traditional urination devices have a relatively simple structure, mainly consisting of a urinary catheter and a single urine collection bag, which is usually fixed to the thigh, calf, or waist with straps. This type of device can meet the basic urination needs to a certain extent during the patient's bed rest period.

[0003] As patients recover and postoperative rehabilitation progresses, they are often encouraged to gradually regain their daily activities, including getting out of bed independently, walking short distances, participating in indoor and outdoor rehabilitation exercises, and even resuming daily life. At this stage, the portability, comfort, and safety of the urination device become particularly important. However, existing urination devices generally have several limitations: First, they are functionally limited, only meeting a single collection need and lacking a tiered or zoned collection design. This causes a single urine bag to easily sway when full, generating a significant burden and centrifugal force, which not only increases the physical burden on patients when walking and active but also affects their motor coordination and self-care ability. Second, traditional devices... Traditional urine bags often use sealed straps, resulting in poor fit and breathability. This can easily cause stuffiness and sweating at the wearing site, especially in the lumbar wound area. Sweat cannot evaporate in time, leading to damp dressings, local skin discomfort, and even infection, seriously affecting wound healing and patient comfort. Furthermore, conventional urine bags lack intelligent feedback or physical reminder mechanisms, making it difficult for patients to know when the bag is full. This can easily lead to problems such as urine backflow and leakage, increasing nursing risks and the probability of secondary contamination. These problems not only affect the patient's recovery progress and quality of life but also increase the workload of medical staff. There is an urgent need for a new type of urination care device with optimized structure, multiple functions, comfortable wear, and easy mobility to solve these problems.

[0004] Therefore, in view of the above-mentioned technical problems, it is necessary to provide a urination device for postoperative care after kidney biopsy. Summary of the Invention

[0005] The purpose of this invention is to provide a urination device for post-renal biopsy care, in order to solve the above-mentioned problems.

[0006] To achieve the above objectives, an embodiment of the present invention provides the following technical solution:

[0007] A urination device for post-renal biopsy care includes: a nursing waist belt, a knee strap, and a leg fixation strap. One end of the nursing waist belt is fitted with multiple evenly distributed waist female Velcro straps, and the outer surface of the nursing waist belt is fitted with waist female Velcro straps that match the multiple waist female Velcro straps. The knee strap is located below the nursing waist belt, one end of the knee strap is fitted with multiple evenly distributed knee female Velcro straps, and the outer surface of the knee strap is fitted with knee female Velcro straps that match the multiple knee female Velcro straps. A fixation strap is attached to one end of the knee strap, and a urinary catheter is attached to the fixation strap.

[0008] The leg securing strap is located below the knee strap. One end of the leg securing strap is equipped with multiple evenly distributed female leg hook and loop fasteners, and the outer surface of the leg securing strap is equipped with multiple female leg hook and loop fasteners that match the female leg hook and loop fasteners. The outer surface of the female leg hook and loop fasteners is equipped with multiple evenly distributed annular urine bags, one of which is connected to a catheter.

[0009] As a further improvement of the present invention, the inner wall of the nursing belt is inlaid with a plurality of evenly distributed breathable abutment blocks, the plurality of breathable abutment blocks are circumferentially distributed, and the material of the breathable abutment blocks is set to a breathable material.

[0010] As a further improvement of the present invention, the nursing belt is embedded with a drying pipe, and the drying pipe has a plurality of evenly distributed drying holes, which are located in the middle of a plurality of ventilated contact blocks.

[0011] As a further improvement of the present invention, the outer end of the nursing waist belt is fixedly connected to a transmission interface, the transmission interface is connected to a drying pipe, the bottom end of the transmission interface is fixedly connected to an airflow pipe, and the outer end of the knee strap is fixedly connected to a conveying interface, the conveying interface is connected to the airflow pipe.

[0012] As a further improvement of the present invention, the inner wall of the knee strap is equipped with a plurality of uniformly distributed compression airbags, the compression airbags are connected to the transmission interface, the shape of the compression airbags is set as a strip-shaped flat shape, and a one-way valve is installed on the compression airbags.

[0013] As a further improvement of the present invention, the outer end of the leg-shaped Velcro is fixedly connected to an inlay strip, the top end of the inlay strip is fixedly connected to a guide strip, and the top end of the guide strip is fixedly connected to the bottom end of the fixing strip.

[0014] As a further improvement of the present invention, a plurality of evenly distributed fixing rings are fixedly connected to the outer surface of the guide strip, and the catheter is disposed within the plurality of fixing rings.

[0015] As a further improvement of the present invention, multiple annular urine bags are connected to each other through a transmission tube. A fixing plate and a fixing sealing block are fixedly connected to the inner wall of the transmission tube. The fixing sealing block is disposed on the upper side of the fixing plate, and a trapezoidal sealing block is slidably connected to the fixing sealing block.

[0016] As a further improvement of the present invention, a pull rope is fixedly connected to the top of the trapezoidal sealing block, a buoyancy ball is fixedly connected to the top of the pull rope, and an elastic strip is fixedly connected to the bottom of the trapezoidal sealing block, with the bottom of the elastic strip being fixedly connected to the top of the fixed plate.

[0017] As a further improvement of the present invention, the annular urine bag is provided with a feedback chamber, and a feedback strip is installed in the feedback chamber. The feedback strip is made of a brittle material.

[0018] Compared with the prior art, the advantages of this invention are:

[0019] (1) This solution effectively solves the problem of wound care and dryness of patients after renal biopsy by using an innovative structure of the nursing belt. The inner side of the nursing belt can hold nursing cotton, which can continuously cover and protect the puncture wound, which is conducive to rapid wound healing. The belt uses multiple sets of evenly distributed breathable abutment blocks. These abutment blocks are made of high-molecular breathable material, which can form a reasonable gap with the skin while covering, avoiding local pressure and stuffiness. At the same time, the belt has a drying channel embedded in it, and active ventilation is achieved through the airflow channel connected to the compression airbag of the inner wall of the knee strap. Whenever the patient walks or moves, the flexion and extension of the knee joint causes the airbag to be periodically squeezed. Under the control of the one-way valve, the gas is continuously sent into the drying channel and evenly released between the inner wall of the belt and the skin through the drying holes distributed on the channel, effectively removing moisture and heat from the wound area. The "dynamic ventilation" structure can achieve dynamic micro-ventilation, significantly reducing the risk of dressing dampness and local eczema caused by sweat accumulation, improving wearing comfort, reducing infection risks, and providing patients with a better postoperative wound care environment.

[0020] (2) This solution addresses the limitations of traditional single-bag urine collection by employing a series of tiered annular urine bags. The catheter first connects to the first annular urine bag closest to the waist, allowing urine to enter this bag preferentially. When this bag is nearly full, the internal buoyancy ball rises, causing the trapezoidal sealing block to overcome the elastic strip and move upward, automatically opening the flow channel of the next level urine bag. The urine is then sequentially diverted to the next level annular urine bag. This tiered collection method effectively distributes the weight of the urine, reduces the load and shaking phenomenon in a single area, decreases the centrifugal force during movement, and avoids weight accumulation. This significantly reduces the risk of discomfort or dislodgement during wearing, greatly improving patient comfort and safety during walking, rehabilitation exercises, and daily activities. Additionally, each urine bag has a feedback chamber and a fragile feedback strip on the side closest to the skin. When the urine bag is full, the internal pressure causes the feedback strip to break, generating a noticeable tactile stimulus. Patients can immediately sense when the urine bag is full without electronic devices, allowing for timely replacement and preventing urine backflow or leakage, thus eliminating blind spots in care. This physical, passive reminder mechanism combines safety, convenience, and practicality, significantly improving patients' self-care ability and the quality of care. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0022] Figure 2 This is a schematic diagram of the nursing belt structure of the present invention;

[0023] Figure 3 This is a schematic diagram of the knee band structure of the present invention;

[0024] Figure 4 This is a schematic diagram of the urinary catheter structure of the present invention;

[0025] Figure 5 This is a schematic diagram of the leg fixing strap structure of the present invention;

[0026] Figure 6 This is a schematic diagram of the transmission tube structure of the present invention;

[0027] Figure 7 This is a schematic diagram of the feedback cavity structure of the present invention.

[0028] Explanation of the labels in the diagram:

[0029] 1. Nursing waist belt; 2. Knee strap; 3. Leg support belt; 11. Waist Velcro; 12. Transmission interface; 13. Ventilation abutment block; 21. Transmission interface; 22. Compression airbag; 23. Knee Velcro; 24. Support belt; 25. Urinary catheter; 26. Airflow tube; 27. Fixing ring; 31. Leg Velcro; 32. Embedded strap; 33. Guide strip; 34. Circular urine bag; 35. Transmission tube; 36. Fixing plate; 37. Fixing sealing block; 38. Trapezoidal sealing block; 39. Elastic strip; 40. Pull cord; 41. Buoyancy ball; 42. Feedback chamber; 43. Feedback strip. Detailed Implementation

[0030] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0031] Example:

[0032] Please see Figure 1-7 A urination device for post-renal biopsy care includes: a nursing waist belt 1, a knee strap 2, and a leg fixation strap 3. One end of the nursing waist belt 1 is fitted with multiple evenly distributed female Velcro straps 11, and the outer surface of the nursing waist belt 1 is fitted with female Velcro straps that match the female Velcro straps 11. The knee strap 2 is located below the nursing waist belt 1, and one end of the knee strap 2 is fitted with multiple evenly distributed female Velcro straps 23, and the outer surface of the knee strap 2 is fitted with female Velcro straps that match the female Velcro straps 23. The knee strap 2 has a fixing strap 24 at one end, and a catheter 25 is installed on the fixing strap 24. The leg fixing strap 3 is located on the lower side of the knee strap 2. Multiple evenly distributed female leg hooks 31 are installed at one end of the leg fixing strap 3, and multiple female leg hooks that match the female leg hooks 31 are installed on the outer surface of the leg fixing strap 3. Multiple evenly distributed annular urine bags 34 are installed on the outer surface of the female leg hooks 31, and one of the annular urine bags 34 is connected to the catheter 25.

[0033] Among them, the solution provides a urination device for post-renal biopsy care, which consists of a nursing waist belt 1, a knee strap 2 and a leg fixation strap 3. It is scientifically designed with partitions to meet the nursing and urination management needs of patients after renal biopsy.

[0034] The nursing waist belt 1 uses multiple evenly distributed female Velcro straps 11 and matching female Velcro straps 11 to securely fix the belt around the patient's waist. This allows for easy adjustment of tightness according to the patient's body shape and facilitates quick disassembly and replacement. Its structure enables the nursing waist belt 1 to firmly cover the postoperative wound and medical dressings, effectively preventing dressing displacement and promoting wound healing.

[0035] The knee strap 2 is located below the nursing belt 1 and uses multiple female and male Velcro straps 23 to wrap around and fix the knee joint. The knee strap 2 also has a fixing strap 24, on which a urinary catheter 25 is installed. This allows the urinary catheter to be naturally distributed along the leg, reducing the risk of catheter slippage or entanglement and improving the safety and convenience of the urination process.

[0036] The leg support strap 3 is located below the knee strap 2. Multiple female leg Velcro straps 31 and female leg Velcro straps work together to provide stable coverage for the lower leg. Multiple annular urine bags 34 are evenly distributed on the outer surface of the female leg Velcro straps 31, at least one of which is connected to the catheter 25, ensuring smooth drainage and collection of urine. This multi-level distribution of urine bags not only distributes the weight of urine, reducing the burden on any single area and minimizing swaying and pulling sensations during patient movement, but also facilitates tiered management and timely replacement, improving wearing comfort and freedom of movement.

[0037] The inner wall of the nursing waist belt 1 is inlaid with a number of evenly distributed ventilation abutment blocks 13. The multiple ventilation abutment blocks 13 are arranged in a circle. The ventilation abutment blocks 13 are made of breathable material. The nursing waist belt 1 is inlaid with a drying pipe. The drying pipe has a number of evenly distributed drying holes. The multiple drying holes are located in the middle of the multiple ventilation abutment blocks 13.

[0038] The outer end of the nursing waist belt 1 is fixedly connected to a transmission interface 12, which is connected to a drying pipe. The bottom end of the transmission interface 12 is fixedly connected to an airflow pipe 26. The outer end of the knee strap 2 is fixedly connected to a transmission interface 21, which is connected to the airflow pipe 26.

[0039] Multiple evenly distributed compression airbags 22 are installed on the inner wall of the knee strap 2. The compression airbags 22 are connected to the transmission interface 21. The shape of the compression airbags 22 is set as a strip-shaped flat shape, and a one-way valve is installed on the compression airbags 22.

[0040] The outer end of the leg-mounted Velcro 31 is fixedly connected to an inlaid band 32, the top end of the inlaid band 32 is fixedly connected to a guide strip 33, the top end of the guide strip 33 is fixedly connected to the bottom end of the fixing band 24, and multiple evenly distributed fixing rings 27 are fixedly connected to the outer surface of the guide strip 33. The urinary catheter 25 is placed in the multiple fixing rings 27.

[0041] Multiple annular urine bags 34 are connected by a transmission pipe 35. A fixing plate 36 and a fixing sealing block 37 are fixedly connected to the inner wall of the transmission pipe 35. The fixing sealing block 37 is located on the upper side of the fixing plate 36, and a trapezoidal sealing block 38 is slidably connected to the fixing sealing block 37.

[0042] A pull rope 40 is fixedly connected to the top of the trapezoidal sealing block 38, and a buoyancy ball 41 is fixedly connected to the top of the pull rope 40. An elastic strip 39 is fixedly connected to the bottom of the trapezoidal sealing block 38, and the bottom of the elastic strip 39 is fixedly connected to the top of the fixing plate 36. A feedback chamber 42 is provided on the annular urine bag 34, and a feedback strip 43 is installed inside the feedback chamber 42. The material of the feedback strip 43 is set to a brittle material.

[0043] This invention relates to a urination device for post-renal biopsy care, which can scientifically and systematically address the various needs of patients after renal biopsy, including wound care, urine collection, dry wearing, and full bag reminders. The device has a reasonable structural design and is convenient to use, as detailed below:

[0044] First, patients usually need continuous care of the lumbar puncture wound after a kidney biopsy. This device is equipped with a nursing belt 1, on the inside of which nursing cotton can be placed to effectively cover and protect the wound. The nursing belt 1 uses multiple evenly distributed waist female Velcro 11 and female Velcro to achieve a stable fit and tightness adjustment, so that the nursing cotton always tightly covers the wound, which helps to promote the healing of the puncture site and prevents the dressing from shifting.

[0045] During the wearing process, the patient also needs to fix the knee strap 2 and the leg fixation strap 3 to the knee and lower leg respectively. These two fixation straps also use a mother-child Velcro fit to ensure a firm structure and flexible adjustment. The wearing process is simple and efficient. The urinary catheter 25 extends from the fixation strap 24 and is stably distributed along the guide strip 33 and the fixation ring 27. Finally, it connects with the urinary catheter in the patient's body to ensure that urine can be drained smoothly and to prevent the catheter from falling off or twisting.

[0046] It should be noted that the fixing ring 27 is a ring-shaped component with an opening or a fully closed opening, installed on the outer peripheral surface of the guide strip 33 at equal intervals. The fixing ring 27 is preferably made of medical-grade silicone or soft TPU material, which has good flexibility, biocompatibility and durability, and can reliably clamp the catheter 25. The catheter 25 is sequentially inserted into multiple fixing rings 27 and is constrained one by one along the longitudinal extension direction of the guide strip 33, thereby achieving regular positioning of the catheter 25 along the patient's leg side, effectively preventing discomfort or infection risk caused by catheter loosening, slippage or entanglement during activities such as walking and knee bending. This technology is existing technology and will not be described in detail here.

[0047] The inner wall of the knee strap 2 has multiple strip-shaped flat compression airbags 22 evenly distributed. These airbags are located directly below the knee, i.e., the lower edge of the patella. When the patient is engaged in daily activities or walking, the knee joint naturally bends and extends, causing the compression airbags 22 to deform under force. The gas is forced into the airflow channel 26 and enters the drying channel inside the nursing belt 1 through the transmission interface 21 and the transmission interface 12. The drying channel has multiple evenly distributed drying holes. Airflow is continuously released through these holes, and together with the gap between the breathable contact block 13 and the skin, a micro-ventilation environment is formed. This structure can effectively remove local moisture and heat, significantly reduce the impact of sweat on the nursing cotton, ensure that the wound area remains dry, and help reduce the risk of infection and improve wearing comfort.

[0048] The specific method is as follows: multiple strip-shaped flat compression airbags 22 are evenly distributed on the inner wall of the knee strap 2. The compression airbags 22 are located directly below the knee, that is, at the lower edge of the patella. When the patient walks or bends the knee joint, the compression airbags 22 below the knee will be periodically squeezed and deformed with the flexion and extension of the knee. Whenever the airbag is squeezed by external force, the internal gas pressure increases, the one-way valve closes, and the gas is effectively compressed into the airflow pipe 26. The airflow then enters the drying pipe inside the nursing belt 1 through the transmission interface 21 and the transmission interface 12.

[0049] When the knee joint is straightened and the external force of the airbag is released, the compression airbag 22 will automatically return to its original shape due to the elastic material properties of its own. At this time, the one-way valve opens, automatically drawing in outside air to refill the airbag and prepare for the next compression. Through this physical cycle of "compression to deliver air - return to inhale air", in conjunction with each natural walking or knee joint movement of the patient, it can continuously and passively provide fresh airflow to the wound area within the nursing belt 1, achieving dynamic drying and comfortable care.

[0050] It is worth noting that the specific implementation method described above is as follows: the breathable abutment block 13 inside the nursing waist belt 1 is made of medical high-molecular breathable material, the thickness of a single abutment block is 3-5mm, and the number of blocks distributed around the circumference is 8-12, which can provide uniform and stable support and ventilation channels for the waist.

[0051] The knee strap 2 has built-in compression airbags 22 that are 6-8cm long, 1.5-2cm wide, and 0.5cm thick. 4-6 of them are evenly distributed along the lower edge of the knee. With a single walk or knee flexion, multiple compression airbags 22 can deliver about 20-30ml of air into the drying channel inside the nursing belt 1. Together with 8-10 drying holes with a diameter of 1.5mm on the drying channel, it can significantly improve local dryness.

[0052] In terms of urination management, the multi-level ring-shaped urine bags 34 adopted in this solution are distributed in series from top to bottom. Based on the principles of human movement biomechanics, this design aims to optimize the wearing stability and comfort of patients when walking.

[0053] When a person walks, the lower limbs can be simplified as a swinging rod system with the hip joint as the axis. The urine stored in the urine bag is an additional mass, and the centrifugal force generated by it is proportional to the distance of the mass from the axis. If the urine is concentrated in a single distal urine bag, the swinging inertia and centrifugal effect will be significantly increased, resulting in more severe shaking of the urine bag, easy detachment of the straps, and increased physical burden and discomfort for the patient when walking.

[0054] This design disperses urine into multiple urine bags distributed longitudinally along the leg, bringing the overall center of mass closer to the hip joint axis, effectively reducing rotational inertia and centrifugal force, and improving the patient's balance and comfort during activities.

[0055] In addition, the top-down flow design follows the force of gravity, which facilitates the natural overflow of urine and enables graded storage without the need for additional power.

[0056] The device uses multi-level annular urine bags 34 distributed on the outer surface of the leg fixation strap 3. The catheter 25 is first connected to the annular urine bag 34 closest to the waist to achieve priority collection of urine in stages. This layout can reduce the centrifugal force caused by the swing of the annular urine bags 34 when the patient walks, reduce the wearing resistance, and improve the patient's freedom of movement. The annular urine bags 34 of each level are connected in series through the transmission tube 35. The transmission tube is equipped with a buoyancy ball 41, a trapezoidal sealing block 38, a fixed sealing block 37, and an elastic strip 39.

[0057] When the previous annular urine bag 34 is full, the buoyancy ball 41 floats up, driving the trapezoidal sealing block 38 to overcome the tension of the elastic strip 39 and move upward, breaking the sealing structure with the fixed sealing block 37, so that urine can automatically flow into the next annular urine bag 34, thereby realizing the graded collection of urine and avoiding urine backflow and leakage.

[0058] In addition, to facilitate patients' timely awareness that the annular urine bag 34 is full, a feedback chamber 42 is provided on the side of the annular urine bag 34 that is close to the skin. A brittle feedback strip 43 is installed in the chamber. When the urine bag is full, the internal pressure increases, causing the feedback strip 43 to break, instantly producing a perceptible stimulation to the skin. This passively and directly reminds the patient that the urine bag is full, making it convenient to replace or dispose of it in a timely manner and reducing the risk of secondary contamination.

[0059] It should be noted that, specifically, the process of urine grading collection has a clear temporal sequence and passive triggering characteristics. When the urine drained by the catheter 25 first enters the uppermost annular urine bag 34, the liquid level of the urine bag will gradually rise. When it is close to being full, the buoyancy of the liquid drives the buoyancy ball 41 to float up, thereby pulling the trapezoidal sealing block 38 upward through the pull rope 40, overcoming the tension of the elastic strip 39, and automatically opening the channel for flowing to the next level annular urine bag 34.

[0060] The triggering mechanism relies on the precise coordination of buoyancy and mechanical transmission. Specifically, the density of the buoyancy ball 41 is lower than that of urine. Its volume and mass are calculated and set so that when the liquid level of the upper-level annular urine bag 34 reaches about 80% to 90% of its volume, the buoyancy ball 41 is completely submerged in the urine. At this time, the buoyancy it receives reaches its maximum value. This buoyancy is converted into an upward pulling force through the pull rope 40 and acts on the upper end of the trapezoidal sealing block 38.

[0061] The trapezoidal sealing block 38 is designed as a wedge structure with a certain inclination angle. Its lower end is connected to the fixed plate 36 through the elastic strip 39. In the initial state, it is pressed tightly against the sealing surface of the fixed sealing block 37 by the pre-tightening force of the elastic strip 39, forming a closure. When the buoyancy ball 41 floats up and applies a sufficiently large upward pulling force, the pulling force overcomes the restoring force of the elastic strip 39, causing the trapezoidal sealing block 38 to slide upward and slightly outward along its inclined guide surface, thereby disengaging from the fixed sealing block 37 and opening the urine flow section.

[0062] This mechanism ensures that urine can smoothly overflow to the next level under gravity when the previous urine bag reaches near full capacity. Through this step-by-step triggering and sequential filling method, the entire system keeps the annular urine bag 34 closest to the waist in a near-full state during operation, while subsequent urine bags are in a state of waiting to be filled or partially filled. This maximizes the utilization of the storage capacity of each level while achieving grading and weight reduction, and ensures that urine flows down naturally due to gravity without relying on external power.

[0063] Meanwhile, to ensure that the feedback system is triggered only when needed, the feedback chamber 42 is located on the lower side of the lowest annular urine bag 34 and close to the skin. When the lowest urine bag is full, it indicates that the entire series system is full, and the reminder is most accurate when triggered at this time.

[0064] Before the device is used, an easy-to-tear protective film is affixed to the opening of the feedback cavity 42. This protective film can effectively isolate external physical contact and friction, preventing the brittle feedback strip 43 from breaking prematurely due to accidental squeezing or bending during transportation, handling or wearing.

[0065] Patients only need to remove this protective film before use to put the feedback system into standby mode, thus ensuring both safe transportation and storage and reliable reminders during use.

[0066] In terms of urine collection, the single capacity of the ring-shaped urine bag 34 is designed to be 150-180ml, and three to four levels are connected in series, with a maximum total capacity of 500-700ml. The brittle feedback strip 43 in the graded urine collection and feedback chamber 42 is made of special medical brittle plastic, with a clear breaking sensation and a trigger pressure of 120g-150g, which ensures the sensitivity of the full bag reminder while avoiding excessive skin irritation.

[0067] In terms of wearing comfort, the total weight of the entire device is controlled between 180g and 240g. The tensile strength of the flexible straps and Velcro is higher than 15N, which can adapt to the repeated wearing and daily activities of patients of different body types without causing obvious slippage or marks.

[0068] This invention, through the organic coordination of a multi-level structure including a nursing waist belt 1, a knee strap 2, and a leg fixation strap 3, combined with innovative technologies such as active ventilation and drying, graded urine bag collection, and physical feedback reminders, not only improves the nursing efficiency and comfort of patients after kidney biopsy, but also enhances safety and self-care ability, which is of great significance for promoting postoperative recovery.

[0069] Working principle:

[0070] After a kidney biopsy, the patient wears the urination care device of this invention. The device has a three-section structure consisting of a nursing waist belt 1, a knee strap 2, and a leg fixation strap 3, which forms a scientific fit and fixation. First, the nursing waist belt 1 has multiple evenly distributed waist female Velcro 11 and female Velcro 11 working together to firmly fit the patient's waist. It is easy to adjust the tightness according to the body shape. At the same time, it ensures that the nursing materials such as cotton wool are tightly wrapped around the puncture wound surface to prevent the dressing from shifting and to provide continuous and effective physical protection and care for the postoperative wound.

[0071] For wound care and keeping the garment dry, the inner wall of the nursing belt 1 is evenly inlaid with multiple breathable abutment blocks 13, made of high-molecular breathable material, distributed circumferentially around the waist. This provides soft support for the waist while creating a ventilation gap between the skin and the belt. The nursing belt 1 also contains a drying channel with multiple evenly distributed drying holes located between the breathable abutment blocks 13. The drying channel connects to the transmission interface 12 at the outer end of the nursing belt 1, and further connects to the airflow channel 26, forming a complete air circulation path. One end of the airflow channel 26 is connected to the outer end of the knee strap 2 via the transmission interface 21, with the airflow driven by the knee strap. Multiple strip-shaped flat compression airbags 22 are installed on the inner wall of the belt 2. These compression airbags 22 are equipped with one-way valves and are evenly distributed below the knee. Whenever the patient walks or moves the knee joint, the compression airbags 22 deform periodically due to the force, and the gas is forced into the airflow pipe 26. It is continuously delivered into the internal drying pipe of the nursing belt 1 through the delivery interface 21 and the transmission interface 12, and then released between the belt and the skin through the drying hole. In this way, dynamic, continuous and passive air circulation is achieved with the help of the patient's own movement, which removes moisture and heat from the wound area of ​​the waist, greatly reduces the risk of sweat accumulation and infection, and ensures the continuous dryness of the postoperative dressing, thereby improving the patient's wearing comfort and wound healing speed.

[0072] In terms of catheterization and urine collection, the knee strap 2 is securely fixed to the knee by multiple female and female hook and loop fasteners 23. A catheter 25 is provided on the fixing strap 24 at one end of the strap. The catheter 25 descends from the knee along the leg and is fixedly distributed along the guide strip 33 and multiple fixing rings 27 on the leg fixing strap 3 to prevent the tube from slipping, tangling, or being subjected to excessive force due to movement, ensuring smooth urine drainage. The leg fixing strap 3 is located below the knee strap 2 and is connected to the female and female hook and loop fasteners 31. The loops fit together to ensure a secure wrap around the lower leg. Multiple annular urine bags 34 are evenly distributed on the outer surface of the leg-mounted Velcro 31. The first annular urine bag 34 is connected to the catheter 25 to ensure that the drained urine enters the urine bag first. The annular urine bags 34 are connected in series through the transmission tube 35. The inner wall of the transmission tube 35 is provided with a fixing plate 36, a fixing sealing block 37 and a sliding trapezoidal sealing block 38. The trapezoidal sealing block 38 is connected to the buoyancy ball 41 through the pull rope 40 and the bottom end is also connected to the elastic strip 39.

[0073] In actual use, urine is first collected in the first annular urine bag 34. As the urine bag gradually fills up, the internal buoyancy ball 41 rises due to buoyancy, which drives the pull rope 40 and trapezoidal sealing block 38 to move upward. Finally, it overcomes the tension of the elastic strip 39 and opens the sealing structure between the fixed sealing block 37 and the trapezoidal sealing block 38, allowing urine to flow smoothly into the next level annular urine bag 34. This step-by-step collection can not only distribute the weight of urine and reduce the burden on a single part, but also prevent urine backflow and leakage, improve activity safety and wearing comfort. Each level annular urine bag 34 has a feedback chamber 42 on the side near the skin, and a brittle feedback strip 43 is installed in the chamber. When the urine bag is full, the internal pressure causes the brittle feedback strip 43 to break, producing obvious tactile stimulation, which can directly remind the patient that the urine bag is full, making it convenient to change in time and avoiding blind spots in care and secondary contamination.

[0074] Overall, this invention, through the synergistic effect of innovative structures such as the nursing waist belt 1, knee strap 2, leg fixation belt 3, and drying and ventilation, catheter fixation, urine classification collection, and passive physical reminders, scientifically achieves wound protection, dynamic dryness, smooth urination, and safety management for patients after renal biopsy, greatly improving nursing efficiency, patient self-care ability, and rehabilitation experience.

[0075] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0076] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A urinary drainage device for post-renal biopsy care, characterized by: include: Nursing belt (1), one end of which is fitted with a plurality of evenly distributed waist female hook and loop fasteners (11), and the outer surface of the nursing belt (1) is fitted with waist female hook and loop fasteners that match the plurality of waist female hook and loop fasteners (11). Knee strap (2), the knee strap (2) is set on the lower side of the nursing waist belt (1), one end of the knee strap (2) is equipped with a plurality of evenly distributed knee female Velcro (23), and the outer surface of the knee strap (2) is equipped with knee female Velcro that matches the plurality of knee female Velcro (23), one end of the knee strap (2) is equipped with a fixing strap (24), and a urinary catheter (25) is installed on the fixing strap (24); Leg fixing strap (3), the leg fixing strap (3) is set on the lower side of the knee strap (2), one end of the leg fixing strap (3) is equipped with a plurality of evenly distributed female leg hook and loop fasteners (31), and the outer surface of the leg fixing strap (3) is equipped with a plurality of female leg hook and loop fasteners that match the female leg hook and loop fasteners (31). The outer surface of the female leg hook and loop fasteners (31) is equipped with a plurality of evenly distributed annular urine bags (34), one of which is connected to a catheter (25); The nursing waist belt (1) has multiple evenly distributed breathable abutment blocks (13) embedded in its inner wall. The multiple breathable abutment blocks (13) are arranged in a circle. The material of the breathable abutment blocks (13) is set as breathable material. The nursing waist belt (1) has a drying pipe embedded in it. The drying pipe has multiple evenly distributed drying holes. The multiple drying holes are located in the middle of the multiple breathable abutment blocks (13). The outer end of the nursing waist belt (1) is fixedly connected to a transmission interface (12). The transmission interface (12) is connected to the drying pipe. The bottom end of the transmission interface (12) is fixedly connected to an airflow pipe (26). The outer end of the knee strap (2) is fixedly connected to a transmission interface (21). The transmission interface (21) is connected to the airflow pipe (26). The inner wall of the knee strap (2) is equipped with multiple evenly distributed compression airbags (22). The compression airbags (22) are connected to the transmission interface (21). The shape of the compression bag (22) is set as a strip-shaped flat shape, and a one-way valve is installed on the compression bag (22). Multiple annular urine bags (34) are connected through a transmission pipe (35). A fixed plate (36) and a fixed sealing block (37) are fixedly connected to the inner wall of the transmission pipe (35). The fixed sealing block (37) is set on the upper side of the fixed plate (36). A trapezoidal sealing block (38) is slidably connected to the fixed sealing block (37). A pull rope (40) is fixedly connected to the top of the trapezoidal sealing block (38). A buoyancy ball (41) is fixedly connected to the top of the pull rope (40). An elastic strip (39) is fixedly connected to the bottom of the trapezoidal sealing block (38). The bottom of the elastic strip (39) is fixedly connected to the top of the fixed plate (36). A feedback chamber (42) is provided on the annular urine bag (34). A feedback strip (43) is installed in the feedback chamber (42). The material of the feedback strip (43) is set as a brittle material.

2. The urination device for post-renal biopsy care according to claim 1, characterized in that: The outer end of the leg-mounted Velcro (31) is fixedly connected to an inlay strip (32), and the top end of the inlay strip (32) is fixedly connected to a guide strip (33). The top end of the guide strip (33) is fixedly connected to the bottom end of the fixing strip (24).

3. A urination device for post-renal biopsy care according to claim 2, characterized in that: The outer surface of the guide strip (33) is fixedly connected with a plurality of evenly distributed fixing rings (27), and the catheter (25) is disposed within the plurality of fixing rings (27).

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