Anti-reflux urostomy bag

Abstract

The application relates to the technical field of medical auxiliary devices, and discloses an anti-reflux urinary stoma bag, which comprises a front application bag, a wrinkle bag fixedly installed on one side of the front application bag, a rear application bag fixedly installed on the side, away from the front application bag, of the wrinkle bag, a one-way valve fixedly connected to the top of the wrinkle bag, a conveying pipe fixedly connected to the bottom of the wrinkle bag, a rubber plate fixedly installed on one side of the rear application bag, a second cutting area fixedly installed on the inner ring of the rubber plate, a liquid containing bag fixedly installed at one end of the second cutting area, which faces the front application bag, and a rubber elastic ring, which tightens the connecting area between the liquid containing bag and the second cutting area, so that the inner ring of the connecting area at one end of the liquid containing bag contacts the stoma tube and locks the stoma tube and the liquid containing bag, preventing loosening between the stoma tube and the liquid containing bag when the urine is full and shakes.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical auxiliary devices, in particular to a urine stoma bag with anti-backflow function. BACKGROUND

[0002] Stoma bag is a kind of medical supplies, which is used as a container for storing human excrements such as urine and feces.

[0003] Intestinal stoma is a surgical procedure in which a section of the intestine is pulled out of the abdominal cavity and excreted through an opening on the skin of the abdominal wall. This type of patient cannot normally defecate due to intestinal damage, anal resection, etc., and needs to use a stoma bag for excretion through intestinal stoma surgery. In addition, if diseases such as intestinal obstruction, familial adenomatous polyposis, bladder tumor, and congenital anal atresia in children occur, a stoma bag needs to be used for excretion through intestinal stoma surgery under the doctor's advice.

[0004] The existing stoma bag is placed in the stoma area. During use, a drainage tube is first inserted and installed at the patient's wound, the stoma diameter is measured after the drainage tube is fixed, the stoma bag base is cut, the cut stoma bag is then torn and the film is pasted, the stoma bag base is aligned with the drainage tube, and the stoma bag is fixed on the skin by sliding along the drainage tube. The stoma bag is generally a disposable product for a short period of time, and needs to be replaced regularly after use for a short period of time. However, the existing stoma bag is generally made of high-molecular plastic and cannot withstand pressure. In some cases, such as hiccup, cough, sputum or abdominal movement, additional pressure will be applied to the stoma bag. The stoma bag cannot withstand this pressure, the base deforms and the drainage tube has a gap, which may cause leakage. Frequent replacement of the stoma bag may cause skin damage and affect the sealing. The stoma size does not match. Limited by the cutting method of the cutting personnel, if the stoma hole is too large during cutting, the stoma bag cannot be tightly attached, which may cause backflow leakage. On the contrary, if the stoma hole is too small, the stoma bag may be stretched or lifted, which may also cause backflow leakage. In summary, the existing stoma bag needs to be further improved. SUMMARY

[0005] In view of the deficiencies of the prior art, the present application provides a urine stoma bag with anti-backflow function to solve the problems mentioned in the background.

[0006] The application provides the following technical scheme: a reverse flow prevention urinary stoma bag, comprising: a front application bag, one side of the front application bag being fixedly provided with a pleated bag, the side away from the front application bag of the pleated bag being fixedly provided with a rear application bag, the top of the pleated bag being fixedly connected with a one-way valve, the bottom of the pleated bag being fixedly connected with a conveying pipe, one side of the rear application bag being fixedly provided with a rubber plate, the side close to the inner ring of the rubber plate of the rear application bag being fixedly provided with a second cutting area, one end of the second cutting area towards the front application bag being fixedly provided with a liquid containing bag, one side of the rear application bag close to the outer ring of the second cutting area being provided with a mounting ring, the mounting ring being sleeved with a rubber elastic ring, the rear application bag being provided with a mounting hole, the mounting hole being located between the second cutting area and the mounting ring, the outer ring of the mounting ring being fixedly provided with a sliding seat, the mounting hole being movably connected with a pressing block, the sliding seat being slidably provided with a stop pin, one end of the pressing block being fixedly connected with the stop pin, and the stop pin and the outer ring of the rubber elastic ring being matched.

[0007] Preferably, one side of the liquid containing bag is provided with a pleated part, the other side of the liquid containing bag is fixedly provided with a lifting film, the lifting film is fixedly provided with a drainage nozzle, one side of the rear application bag is fixedly provided with a top ball, the pleated part extends downwards and is parallel to the rear application bag to make the drainage nozzle contact the top ball.

[0008] Preferably, the inner bottom of the pleated bag is fixedly provided with an air bag, the other end of the front application bag is fixedly provided with an air nozzle, the air bag is inflated through the air nozzle to form a stepped cliff on the side after arching, and the pleated part, the bottom of the lifting film and the air bag are matched.

[0009] Preferably, a fixed rope is slidably connected between the pressing block and the sliding seat, one end of the fixed rope passes through the sliding seat, one end of the fixed rope is fixedly connected with a movable ball, a pull rope extension lifting ring is fixedly provided on the outer side of the fixed rope, a pull rope is fixedly connected between the lifting film and the pull rope extension lifting ring, a baffle is fixedly provided on one side of the rear application bag close to the sliding seat, a fixed block is fixedly provided on one side of the rear application bag close to the baffle, the pull rope extension lifting ring passes through the baffle and is fixed to the fixed block, a check rubber is fixedly provided in the sliding seat, and a rotating wheel is provided below the check rubber.

[0010] Preferably, a clamping groove is formed in the inner ring of the mounting ring, a limiting claw is fixedly connected between the baffle and the mounting ring, and the end of the limiting claw is reversely buckled into the clamping groove.

[0011] Preferably, the rear application bag is sequentially provided with a first cutting area and a center disc from far to near based on the axis of the second cutting area, and the rear application bag, the pleated bag and the front application bag form a sealed environment through the first cutting area and the second cutting area.

[0012] Preferably, the inner ring of the drainage nozzle is fixedly installed with an installation groove, the outer ring of the installation groove is fitted with a spring, one end of the spring is fixedly connected to a movable nozzle, and the movable nozzle elastically abuts against the top ball through the spring.

[0013] Preferably, a compression area is provided at one end of the front dressing bag, a first magnet is fixedly installed in the middle of the front dressing bag, and a second magnet is fixedly installed on the side of the lifting film facing the pleats. The second magnet and the first magnet have opposite magnetic properties and attract each other.

[0014] Preferably, a sliding rod is movably connected to the top of the lifting membrane. A second float is fixedly installed at one end of the sliding rod, and a first float is fixedly installed at the other end of the sliding rod. A ventilation cavity is opened inside the sliding rod, and the second float and the first float pass through the two ends of the ventilation cavity, respectively. The second float and the lifting membrane are fixedly connected.

[0015] Preferably, the surface of the pre-application bag is frosted and made of soft rubber.

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

[0017] In this invention, the rubber elastic ring tightens the connection area between the liquid collection bag and the second cutting area. Finally, the rubber elastic ring drives the inner ring of the connection area of ​​one end of the liquid collection bag to contact the stoma tube and lock the stoma tube and the liquid collection bag. This prevents the stoma tube and the liquid collection bag from loosening when shaking occurs after the urine has accumulated. Then, the adhesive plate is attached to the skin and pressed firmly to prevent it from falling off due to poor adhesion. Then, the sealing strip at the top of the one-way valve is removed to allow air to enter the pleated bag, thereby causing the liquid collection bag to arch. The expanded space creates negative pressure, which facilitates the drainage of urine.

[0018] In this invention, during urination, the squeezing area can be pressed with the hand to increase the depth of the moving nozzle on the drainage nozzle, thus speeding up the urination process. After urination, the height of the moving nozzle at the drainage nozzle ensures that a very small amount of urine remains inside the liquid bag, which is used to disperse the lifting membrane and the pleats, preventing the pleats and the lifting membrane from sticking together after urination, which would make it difficult for urine to enter the liquid bag.

[0019] In this invention, during the descent of the lifting membrane, the pull rope moves, which in turn stretches the extension ring, causing the extension ring to lift the fixed rope. As the fixed rope rises, the movable ball moves towards the rear dressing bag, causing it to contact the rubber elastic ring and slide around the outer ring of the stoma tube for traction. The movable ball alters part of the position of the rubber elastic ring, increasing its elasticity and ensuring that the rear dressing bag does not leak. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the state before the invention is used;

[0022] Figure 3 This is a schematic diagram of the overall disassembled structure of the present invention;

[0023] Figure 4 For the present invention Figure 3 Enlarged structural diagram at point A;

[0024] Figure 5 For the present invention Figure 3 Enlarged structural diagram at point B;

[0025] Figure 6 This is a schematic diagram of the overall structure of the present invention from another perspective;

[0026] Figure 7 This is a schematic diagram of the structure of the back dressing bag used to fix the liquid-holding bag in this invention;

[0027] Figure 8 This is a schematic diagram of the structure of the first and second floats of the present invention;

[0028] Figure 9 This is a cross-sectional view of the slide block of the present invention;

[0029] Figure 10 This is a schematic diagram of the liquid-holding bag structure of the present invention;

[0030] Figure 11 This is a schematic diagram of the structure used for liquid discharge according to the present invention.

[0031] In the diagram: 1. Front dressing bag; 101. Compression zone; 102. First magnet; 103. Air nozzle; 2. Pleated bag; 3. Rear dressing bag; 301. Adhesive plate; 302. Central disc; 303. First cutting zone; 304. Second cutting zone; 305. Mounting hole; 306. Top ball; 4. Delivery pipe; 5. One-way valve; 6. Airbag; 7. Liquid collection bag; 701. Pleated section; 702. Lifting membrane; 703. Second magnet; 704. Drainage nozzle; 70 5. Mounting slot; 706. Spring; 707. Movable nozzle; 708. Mounting ring; 8. Pressing block; 9. Slide seat; 901. Fixing rope; 902. Anti-reverse rubber; 903. Rotary wheel; 904. Stop pin; 10. Rubber elastic ring; 11. Baffle; 12. Fixing block; 13. Pull rope; 14. Pull rope extension ring; 15. Limiting claw; 16. Slot; 17. Movable ball; 18. First float; 19. Vent chamber; 20. Second float. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] Please see Figures 1-11A backflow urostomy bag includes: a front dressing bag 1, a pleated bag 2 fixedly installed on one side of the front dressing bag 1, the surface of the front dressing bag 1 being frosted and made of soft rubber; a rear dressing bag 3 fixedly installed on the side of the pleated bag 2 away from the front dressing bag 1, a one-way valve 5 fixedly connected to the top of the pleated bag 2, and a delivery tube 4 fixedly connected to the bottom of the pleated bag 2; a rubber plate 301 fixedly installed on one side of the rear dressing bag 3; a second cutting area 304 fixedly installed near the inner ring of the rubber plate 301 on the rear dressing bag 3; a fluid-holding bag 7 fixedly installed at the end of the second cutting area 304 facing the front dressing bag 1; an installation ring 708 provided near the outer ring of the second cutting area 304 on one side of the rear dressing bag 3; a rubber elastic ring 10 fitted on the installation ring 708; and an installation hole 305 opened on the rear dressing bag 3, the installation hole 305 being located between the second cutting area 304 and the installation ring 708. A slide block 9 is fixedly installed on the outer ring of the mounting ring 708. A pressing block 8 is movably connected to the mounting hole 305. A stop pin 904 is slidably installed on the slide block 9. One end of the pressing block 8 is fixedly connected to the stop pin 904. The stop pin 904 matches the outer ring of the rubber elastic ring 10. Pre-installation care: First, the skin around the stoma should be cleaned with warm water or saline. Measure the stoma diameter of multiple diameters and cut the second cutting area 304. The diameter of the second cutting area 304 should exceed the stoma by about 2mm when cutting. It should ensure complete coverage but not exceed it too much to avoid intestinal contents soaking into normal skin. The anterior dressing bag 1 is made of a film, consisting of three or more layers of co-extruded PE high-barrier film or EVA, TPE film, etc. It is soft, comfortable, has low friction noise, and good odor isolation effect. The inner wall of the pleated bag 2 can be attached with activated carbon filter sheets, which can easily release air to avoid bag swelling and also have a good odor elimination effect.The pleated bag 2 is initially in a compressed state, and the top of the one-way valve 5 is sealed. During use, apply stoma care powder around the stoma, spreading it evenly from the outside in. Peel off the adhesive paper on the adhesive plate 301. Align the cut second cutting area 304 with the stoma tube on the wound. Gently push the pressing block 8 with your thumb. As the pressing block 8 moves, it drives the stop pin 904 to slide into the pleated bag 2. After the stop pin 904 contacts the rubber elastic ring 10, it pushes it to slide on the slide 9. The rubber elastic ring 10 separates from the slide 9 and, using its own elasticity, moves away from the slide 9, moving along the end of the mounting ring 708 to reduce the opening, thus reducing the size of the liquid-filled bag 7. The connection area (not shown) between the second cutting area 304 is tightened, and finally the rubber elastic ring 10 drives the inner ring of one end of the fluid collection bag 7 to contact the stoma tube, locking the stoma tube and the fluid collection bag 7 to prevent loosening between the stoma tube and the fluid collection bag 7 when shaking occurs after the urine has accumulated. Then, the adhesive plate 301 is attached to the skin and pressed firmly to prevent it from falling off due to poor adhesion. Then, the sealing strip at the top of the one-way valve 5 is removed, allowing air to enter the pleated bag 2, causing the fluid collection bag 7 to arch, expanding the space and creating negative pressure to facilitate urine drainage. Then, the valve of the delivery tube 4 is closed.

[0034] Furthermore, the liquid-collecting bag 7 has a pleated portion 701 on one side, and a lifting membrane 702 is fixedly installed on the other side of the liquid-collecting bag 7. A drainage nozzle 704 is fixedly installed on the lifting membrane 702. A top ball 306 is fixedly installed on one side of the rear dressing bag 3. The pleated portion 701 extends downward and is parallel to the rear dressing bag 3 so that the drainage nozzle 704 contacts the top ball 306. A squeezing area 101 is opened at one end of the front dressing bag 1. An installation groove 705 is fixedly installed on the inner ring of the drainage nozzle 704. A spring 706 is sleeved on the outer ring of the installation groove 705. A movable nozzle 707 is fixedly connected to one end of the spring 706. The movable nozzle 707 elastically abuts against the top ball 306 through the spring 706. After the liquid-collecting bag 7 has been used for a period of time, as more and more urine accumulates inside the liquid-collecting bag 7, the pleated portion 701 is gradually straightened. When the liquid inside the liquid-collecting bag 7 needs to be poured out, the internal weight of the liquid-collecting bag 7 is relatively large. As the drainage nozzle 704 gradually contacts the top ball 306, the top ball 306 drives the movable nozzle 707 to move into the liquid-collecting bag 7. During the movement of the movable nozzle 707, the spring 706 is stretched, and the end of the movable nozzle 707 separates from the mounting groove 705. Urine flows out of the liquid-collecting bag 7 into the pleated bag 2, and then the valve of the delivery pipe 4 is opened to allow the urine to drain. During the urination process, the squeezing area 101 can be pressed with the hand to increase the depth of the movable nozzle 707 on the drainage nozzle 704 and speed up the urination process. After urination, the movable nozzle 707 at the height of the drainage nozzle 704 leaves a very small amount of urine inside the liquid-collecting bag 7, which is used to disperse the lifting membrane 702 and the pleated part 701, preventing the pleated part 701 and the lifting membrane 702 from sticking together after urination, which would make it difficult for urine to enter the liquid-collecting bag 7.

[0035] Furthermore, an airbag 6 is fixedly installed at the bottom of the inside of the pleated bag 2, and an air nozzle 103 is fixedly installed at the other end of the front dressing bag 1. After the airbag 6 is inflated by the air nozzle 103, it forms a stepped slope on one side, causing the bottom of the pleated part 701 and the lifting membrane 702 to abut against the airbag 6. A first magnet 102 is fixedly installed in the middle of the front dressing bag 1, and a second magnet 703 is fixedly installed on the side of the lifting membrane 702 facing the pleated part 701. The second magnet 703 and the first magnet 102 are attracted together by opposite magnetic properties. After the liquid bag 7 has been used for a period of time, urine will accumulate in the liquid bag 7. As more and more urine accumulates inside, the folded part 701 moves towards the rear dressing bag 3, further driving the lifting membrane 702 to move. The first magnet 102 separates from the first magnet 102, and the bottom of the lifting membrane 702 slides on the air bag 6. The air bag 6 provides support for the bottom of the folded part 701 and the lifting membrane 702. The second magnet 703 and the first magnet 102 also prevent the top ball 306 from directly contacting the movable mouth 707 when the liquid bag 7 is used with the patient's daily activities, thus preventing urine from flowing out into the folded bag 2 in advance. This generates buoyancy in the folded part 701 and the lifting membrane 702, reducing the usable space of the liquid bag 7.

[0036] Furthermore, a fixing rope 901 is slidably connected between the pressing block 8 and the slide 9. One end of the fixing rope 901 passes through the slide 9, and a movable ball 17 is fixedly connected to the end of the fixing rope 901. A pull rope extension ring 14 is fixedly installed on the outside of the fixing rope 901. A pull rope 13 is fixedly connected between the lifting membrane 702 and the pull rope extension ring 14. A baffle 11 is fixedly installed on the side of the back dressing bag 3 near the slide 9. A fixing block 12 is fixedly installed on the side of the back dressing bag 3 near the baffle 11. One end of the pull rope extension ring 14 passes through the baffle 11 and is fixed to the fixing block 12. A fixed object is fixed inside the slide 9. Equipped with a backstop rubber 902, the slide 9 has a rotating wheel 903 below the backstop rubber 902. In another embodiment, as the pressing block 8 pushes the stop pin 904, the stop pin 904 drives the rubber elastic ring 10 to lock the connection area between the liquid bag 7 and the second cutting area 304. At the same time, the rubber elastic ring 10 drives the movable ball 17 to move forward. The fixing rope 901 and the movable ball 17 are connected and fixed. The fixing rope 901 is pressed to the bottom by the rubber elastic ring 10. The movable ball 17 drives the fixing rope 901 to be stretched until the rubber elastic ring 10 contacts the connection area. As urine accumulates more and more inside the liquid bag 7... During the patient's daily activities, relative slippage may occur between the stoma tube and the fluid collection bag 7, creating a gap that could lead to leakage. Therefore, a rubber elastic band 10 is needed to securely tighten the stoma tube and the fluid collection bag 7. The airbag 6 serves as the support for the folded portion 701 and the lifting membrane 702. When the patient moves, the support folded portion 701 and the lifting membrane 702 will slide on the airbag 6. During this sliding process, the folded portion 701 moves closer to the posterior dressing bag 3, causing the lifting membrane 702 to descend. As the lifting membrane 702 descends, it moves the pull rope 13. The movement of the pull rope 13 causes the pull rope extension ring 14 to stretch, which in turn causes the pull rope extension ring 14 to lift the fixed rope 901. During the lifting process, the fixed rope 901 causes the movable ball 17 to move towards the rear dressing bag 3. This causes the movable ball 17 to come into contact with the rubber elastic ring 10, which then slides and pulls the rubber elastic ring 10 on the outer ring of the stoma tube. After the movable ball 17 changes part of the position of the rubber elastic ring 10, it increases the elasticity of the rubber elastic ring 10, ensuring that the rear dressing bag 3 does not leak. This gives the ostomy bag an anti-shaking function during use and also allows it to withstand a certain amount of pressure without deforming the ostomy bag opening.

[0037] The inner ring of the mounting ring 708 has a slot 16. A limiting claw 15 is fixedly connected between the baffle 11 and the mounting ring 708. The end of the limiting claw 15 is hooked into the slot 16. In order to prevent the rubber elastic ring 10 from popping out prematurely during transportation, the limiting claw 15 is used to limit it. When the thumb presses the pressing block 8, a little force needs to be applied to facilitate the separation of the end of the limiting claw 15 from the slot 16, so that the rubber elastic ring 10 can easily pop out into the connection area between the liquid bag 7 and the second cutting area 304.

[0038] Furthermore, the posterior dressing bag 3 is equipped with a first cutting area 303 and a central disc 302 sequentially from far to near, with the axis of the second cutting area 304 as the reference. The posterior dressing bag 3, the pleated bag 2, and the anterior dressing bag 1 form a sealed environment through the first cutting area 303 and the second cutting area 304. Since the size of the stoma is different for each patient and the required tubes are different, the corresponding cutting area sizes are different. The sizes of the first cutting area 303 and the second cutting area 304 can meet the needs of stoma tubes of different sizes. After cutting with the first cutting area 303, there is no need to cut with the second cutting area 304, which improves the convenience of operation.

[0039] Furthermore, a sliding rod is movably connected to the top of the lifting membrane 702. A second float 20 is fixedly installed at one end of the sliding rod, and a first float 18 is fixedly installed at the other end. A venting chamber 19 is opened inside the sliding rod. The two ends of the venting chamber 19 pass through the second float 20 and the first float 18, respectively. The second float 20 and the lifting membrane 702 are fixedly connected. When the device is put into use and pressure is released, air enters the venting chamber 19 and is guided into the liquid-holding bag 7 through the venting chamber 19. The liquid-holding bag 7 expands to facilitate drainage. When the liquid passes through the axis of the second cutting area 304, it is easy for it to backflow into the body, and the device is unstable under load. The first float 18 rises, and the second float 20 pulls the lifting membrane 702 up, expanding the top space of the liquid-holding bag 7. The rubber elastic ring 10 is pulled again, further tightening the connection area between the liquid-holding bag 7 and the second cutting area 304, improving the stability of the device.

[0040] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A reflux urostomy bag, comprising an anterior dressing bag (1), characterized in that, A pleated bag (2) is fixedly installed on one side of the front dressing bag (1). A rear dressing bag (3) is fixedly installed on the side of the pleated bag (2) away from the front dressing bag (1). A one-way valve (5) is fixedly connected to the top of the pleated bag (2). A delivery pipe (4) is fixedly connected to the bottom of the pleated bag (2). A rubber plate (301) is fixedly installed on one side of the rear dressing bag (3). A second cutting area (304) is fixedly installed on the rear dressing bag (3) near the inner ring of the rubber plate (301). A liquid-holding bag (7) is fixedly installed on the end of the second cutting area (304) facing the front dressing bag (1). A liquid-holding bag (7) is fixedly installed on the side of the rear dressing bag (3) near the second cutting area (304). An installation ring (708) is provided next to the outer ring. A rubber elastic ring (10) is fitted on the installation ring (708). An installation hole (305) is provided on the back cover bag (3). The installation hole (305) is located between the second cutting area (304) and the installation ring (708). A slide (9) is fixedly installed on the outer ring of the installation ring (708). A pressing block (8) is movably connected to the installation hole (305). A stop pin (904) is slidably installed on the slide (9). One end of the pressing block (8) is fixedly connected to the stop pin (904). The stop pin (904) matches the outer ring of the rubber elastic ring (10).

2. The anti-reflux urostomy bag according to claim 1, characterized in that, The liquid-holding bag (7) has a pleated part (701) on one side and a lifting membrane (702) fixedly installed on the other side of the liquid-holding bag (7). A drainage nozzle (704) is fixedly installed on the lifting membrane (702). A top ball (306) is fixedly installed on one side of the back bag (3). The pleated part (701) extends downward and is parallel to the back bag (3) so that the drainage nozzle (704) contacts the top ball (306).

3. The anti-reflux urostomy bag according to claim 2, characterized in that, An airbag (6) is fixedly installed at the bottom of the inside of the pleated bag (2), and an air nozzle (103) is fixedly installed at the other end of the front dressing bag (1). The airbag (6) is raised by air through the air nozzle (103) to form a stepped steep slope on one side, and the bottom of the pleated part (701) and the lifting membrane (702) abut against the airbag (6).

4. The anti-reflux urostomy bag according to claim 2, characterized in that, A fixed rope (901) is slidably connected between the pressing block (8) and the slide (9). One end of the fixed rope (901) passes through the slide (9), and a movable ball (17) is fixedly connected to the end of the fixed rope (901). A pull rope extension ring (14) is fixedly installed on the outside of the fixed rope (901). A pull rope (13) is fixedly connected between the lifting membrane (702) and the pull rope extension ring (14). A baffle (11) is fixedly installed on the side of the back bag (3) near the slide (9). A fixing block (12) is fixedly installed on the side of the back bag (3) near the baffle (11). One end of the pull rope extension ring (14) passes through the baffle (11) and is fixed to the fixing block (12). A backstop rubber (902) is fixedly installed inside the slide (9). A rotating wheel (903) is provided on the slide (9) below the backstop rubber (902).

5. The anti-reflux urostomy bag according to claim 4, characterized in that, The inner ring of the mounting ring (708) has a slot (16), and a limiting claw (15) is fixedly connected between the baffle (11) and the mounting ring (708). The end of the limiting claw (15) is snapped into the slot (16).

6. The anti-reflux urostomy bag according to claim 5, characterized in that, The back cover (3) is equipped with a first cutting area (303) and a center plate (302) in sequence from far to near, with the axis of the second cutting area (304) as the reference. The back cover (3), the pleated bag (2) and the front cover (1) form a sealed environment through the first cutting area (303) and the second cutting area (304).

7. The anti-reflux urostomy bag according to claim 2, characterized in that, The inner ring of the drainage nozzle (704) is fixedly installed with an installation groove (705), and the outer ring of the installation groove (705) is fitted with a spring (706). One end of the spring (706) is fixedly connected to a movable nozzle (707), and the movable nozzle (707) elastically abuts against the top ball (306) through the spring (706).

8. The anti-reflux urostomy bag according to claim 7, characterized in that, The front dressing bag (1) has a compression area (101) at one end, and a first magnet (102) is fixedly installed in the middle of the front dressing bag (1). A second magnet (703) is fixedly installed on the side of the lifting film (702) facing the pleated part (701). The second magnet (703) and the first magnet (102) are attracted together by opposite magnetic properties.

9. The anti-reflux urostomy bag according to claim 2, characterized in that, The top of the lifting membrane (702) is movably connected to a sliding rod. A second float (20) is fixedly installed at one end of the sliding rod, and a first float (18) is fixedly installed at the other end of the sliding rod. A ventilation cavity (19) is opened inside the sliding rod. The two ends of the ventilation cavity (19) pass through the second float (20) and the first float (18) respectively. The second float (20) and the lifting membrane (702) are fixedly connected.

10. The anti-reflux urostomy bag according to claim 1, characterized in that, The surface of the front dressing bag (1) is frosted and made of soft rubber.

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