A drainage structure of a urine collection bag

Abstract

The present invention relates to the technical field of urine collecting bags, and more specifically, to a drainage structure of a urine collecting bag. It includes a drainage tube connected to the urine collecting bag, the drainage tube includes a tube body and a tube control unit arranged on the tube body, the tube body includes a soft tube and a hard sleeve, and an airbag control structure is arranged in the hard sleeve; the tube control unit includes a sleeve adjustment body and a movable body. In the present invention, the linkage rod is driven to reset by a spring and then drives the button to reset. During the resetting process of the linkage rod, the movable body is driven to reset so that the rubber plug contacts the first concave and the second inner rod moves in the opposite direction along the bag tube, pressing the gas in the bag tube into the annular bag. The annular bag body becomes larger and drives the soft tube to move inward to contact the clamping edge. Under the action of the clamping edges of the upper and lower round rods, the inner wall of the soft tube is clamped from the upper and lower ends, thereby ensuring that the inner wall of the soft tube can fit with the surface of the round rod to block the soft tube, and the liquid can be prevented from flowing back into the urine collecting bag.

Description

Technical Field

[0001] The present invention relates to the technical field of urine collecting bags, in particular to a liquid discharge structure of a urine collecting bag. Background Art

[0002] A urine collection bag is a medical device used to collect and store urine. It is mainly used after surgery, for urinary incontinence, urethral stenosis, urinary tract infection, etc. It can effectively collect the patient's urine, avoid leakage and contamination of urine, and facilitate doctors to perform urine analysis and diagnosis, so as to better understand the patient's condition and formulate treatment plans.

[0003] For example, CN201101619Y relates to an anti-backflow urine collection bag, comprising a catheter and a urine collection bag body, in which a cylindrical film extends downward from the middle position of the sealed opening of the urine collection bag body, the film is sleeved on the outer edge of the catheter opening, and is connected to the catheter and the urine collection bag body by heat sealing at the sealed opening.

[0004] The above patent extends a cylindrical film at the sealing part of the urine collecting bag body. Therefore, when the urine collecting bag is inverted, the outer part of the cylindrical film will automatically close due to the pressure of the surrounding liquid, effectively preventing the liquid from flowing back into the drainage tube. The problem is that the urine collecting bag is generally made of soft material, and the cylindrical film is generally made of flexible material in order to achieve the closing effect. When draining, two hands are required, that is, one hand holds the urine collecting bag and the other hand holds the drainage tube. In this process, the urine collecting bag and the drainage tube will be twisted and deformed due to being squeezed, thereby affecting the cylindrical film, making it impossible to close or unable to close completely, and the effect of preventing liquid backflow is greatly reduced. After draining, if the urine collecting bag is placed flat or inverted, some liquid will flow back into the urine collecting bag. Since the refluxed liquid contains bacteria, these bacteria will move retrograde to the bladder and urethra and cause infection.

[0005] Therefore, in order to ensure that the liquid cannot flow back into the urine collecting bag after the urine collecting bag is drained, a drainage structure of the urine collecting bag is proposed. Summary of the invention

[0006] The object of the present invention is to provide a drainage structure for a urine collecting bag to solve the problems raised in the above background technology.

[0007] To achieve the above object, the present invention provides a drainage structure of a urine collecting bag, comprising a drainage pipe connected to the urine collecting bag, wherein the drainage pipe comprises a pipe body and a pipe control arranged on the pipe body;

[0008] The tube body comprises a soft tube whose one end is connected to the discharge port of the urine collecting bag, a hard sleeve is sleeved on the surface of the soft tube, and an air bag control structure for squeezing the outer wall of the soft tube is arranged inside the hard sleeve;

[0009] The tube control comprises a ring adjusting body and a movable body connected to the ring adjusting body, the ring adjusting body is snap-fitted with the outer wall of the hard sleeve, the movable body is located in the soft tube and connected to the airbag control structure, when the movable body moves upward, it contacts the inner wall of the soft tube and drives the airbag control structure to reset, and the airbag control structure squeezes and drives the soft tube to deform and fit the surface of the movable body.

[0010] As a further improvement of the present technical solution, the surface of the hard sleeve is provided with an inwardly recessed hoop groove, the collar adjusting body is an annular shell clamped in the hoop groove on the surface of the hard sleeve, the bottoms of both ends of the collar adjusting body are provided with handles that fit on the surface of the hard sleeve, and a button is plugged into the connection between the collar adjusting body and the handle, a linkage rod that can move up and down is provided in the handle, the top end of the linkage rod is slidably connected to the button, the linkage rod is connected to the inner wall of the handle through a set spring, and the bottom end of the linkage rod is connected to the movable body.

[0011] As a further improvement of the technical solution, the outer wall of the handle is provided with a wave groove for increasing friction.

[0012] As a further improvement of the present technical solution, a first recess is provided at the upper and lower ends of the inner wall of the soft tube for reducing the liquid flow cross-sectional area of ​​the soft tube, the movable body is a round rod connected in two upper and lower sections, a rubber plug for blocking the first recess is provided on the round rod, brackets are connected on both sides of the bottom end of the lower section of the round rod, a first inner rod is provided at one end of the bracket, and the top end of the first inner rod is connected to the bottom end of the linkage rod.

[0013] As a further improvement of the technical solution, a deformable valve is provided on the round rod, and the edge of the valve is in contact with the inner wall of the soft tube.

[0014] As a further improvement of the present technical solution, the airbag control structure includes an annular bag and a bag tube connected to the annular bag, the annular bag is partially embedded in the inner wall of the hard sleeve, the surface of the annular bag is connected to the outer wall of the soft tube, a second inner rod is provided on the bracket, the second inner rod is plugged into and matched with the bottom end of the bag tube, and a rubber pad for sealing is provided on the side wall of the second inner rod.

[0015] As a further improvement of the technical solution, a clamping edge for clamping the inner wall of the soft tube is provided at the connection between the two sections of the round rod.

[0016] As a further improvement of the technical solution, a limiting rod is provided at the top end of the round rod of the lower section, and the round rod of the lower section is plug-fitted with the round rod of the upper section through the provided limiting rod.

[0017] As a further improvement of the technical solution, the contact point between the annular sac and the surface of the soft tube is a second concave, and the shape of the second concave matches the shape of the annular sac.

[0018] As a further improvement of the technical solution, the locking edge and the second concave contact surface are recessed inwardly.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. In the drainage structure of the urine collecting bag, the linkage rod is driven to reset by the spring and then drives the button to reset. During the resetting process of the linkage rod, the movable body is driven to reset so that the rubber plug contacts the first inner concave and the second inner rod moves in the opposite direction along the bag tube, pressing the gas in the bag tube into the annular bag. The annular bag body becomes larger and drives the soft tube to move inward to contact the engaging edge. Under the action of the engaging edges of the upper and lower round rods, the inner wall of the soft tube is clamped from the upper and lower ends, thereby ensuring that the inner wall of the soft tube can fit with the surface of the round rod to block the soft tube, which can prevent liquid from flowing back into the urine collecting bag.

[0021] 2. In the drainage structure of the urine collecting bag, when the liquid flows into the soft tube from the drainage port of the urine collecting bag, the liquid flows along the surface of the valve and pushes the valve to deform, so that the edge of the valve does not contact the inner wall of the soft tube, and the liquid can flow through the gap between the valve and the inner wall of the soft tube. When the liquid flows in the opposite direction, the liquid will push the valve to deform so that the edge of the valve fits with the inner wall of the soft tube, thereby blocking the inside of the soft tube, so that the liquid cannot flow back into the urine collecting bag.

[0022] 3. In the drainage structure of the urine collecting bag, the shape of the second concave is set to match the shape of the annular sac. When the annular sac expands and becomes larger until the second concave contacts and is clamped by the snap-fitting edge, the second concave is pulled inward, so that the upper and lower ends of the soft tube are pulled, so that the rubber plug and the first concave can fit tightly, thereby ensuring that the liquid does not flow back. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 It is the overall cross-sectional structure diagram of the present invention;

[0025] Figure 3 It is a cross-sectional structural diagram of the pipe body of the present invention;

[0026] Figure 4 It is a cross-sectional structural diagram of the tube control unit of the present invention;

[0027] Figure 5 It is a schematic diagram of the cooperation between the movable body and the soft pipe of the present invention;

[0028] Figure 6 It is a schematic diagram of the cooperation between the movable body and the airbag control structure of the present invention;

[0029] Figure 7 It is a cross-sectional view of the movable structure of the present invention;

[0030] Figure 8 for Figure 7 A schematic diagram of the structure enlargement at point A;

[0031] Fig. 9 It is a schematic diagram of the activity of the liquid discharge pipe structure of the present invention.

[0032] The meaning of each number in the figure is:

[0033] 1. tube body; 11. soft tube; 111. first concave; 112. second concave; 12. hard sleeve; 121. annular capsule; 122. capsule tube;

[0034] 2. Tube control unit; 21. Ring adjustment body; 211. Handle; 212. Button; 213. Linkage rod; 22. Movable body; 221. Rubber plug; 222. Valve; 223. Engaging edge; 224. Limiting rod; 23. Bracket; 231. First inner rod; 232. Second inner rod. DETAILED DESCRIPTION

[0035] The following will be combined with the accompanying drawings in the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] In the description of the present invention, it is necessary to understand that the orientations or positional relationships indicated by terms such as “upper”, “lower”, “top”, “bottom”, “inside” and “outside” are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0037] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0038] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the purpose of this embodiment is to provide a drainage structure of a urine collecting bag, including a drainage pipe connected to the urine collecting bag, the drainage pipe including a pipe body 1 and a pipe control 2 arranged on the pipe body 1;

[0039] The tube body 1 comprises a soft tube 11, one end of which is connected to the discharge port of the urine collection bag. A hard sleeve 12 is sleeved on the surface of the soft tube 11. An airbag control structure for squeezing the outer wall of the soft tube 11 is arranged inside the hard sleeve 12.

[0040] The tube control unit 2 includes a ring adjusting body 21 and a movable body 22 connected to the ring adjusting body 21. The ring adjusting body 21 is snap-fitted with the outer wall of the hard sleeve 12. The movable body 22 is located in the soft tube 11 and connected to the airbag control structure. When draining, the urine collecting bag is placed upright so that the drainage tube is located below the urine collecting bag. The movable body 22 is driven downward by pressing the ring adjusting body 21. When the movable body 22 moves downward, it does not contact the inner wall of the soft tube 11 and drives the airbag control structure to move. The liquid in the urine collecting bag is discharged downward through the soft tube 11 under the action of gravity. After the drainage is completed, the ring adjusting body 21 is released, the ring adjusting body 21 is reset, and then the movable body 22 is driven to move upward. When the movable body 22 moves upward, it contacts the inner wall of the soft tube 11 and drives the airbag control structure to reset. The airbag control structure squeezes the soft tube 11 so that the soft tube 11 is deformed and fits the surface of the movable body 22, thereby achieving the blockage of the soft tube 11 and avoiding the backflow of the liquid.

[0041] The above structure is disclosed as follows:

[0042] In order to facilitate the adjustment of the liquid blocking state of the soft tube 11, Figure 2 , Figure 3 , Figure 4As shown, the surface of the hard sleeve 12 is provided with an inwardly recessed hoop groove, the collar adjusting body 21 is an annular shell stuck in the hoop groove on the surface of the hard sleeve 12, and the bottoms of both ends of the collar adjusting body 21 are provided with handles 211 that fit on the surface of the hard sleeve 12, and the connection between the collar adjusting body 21 and the handle 211 is plugged with a button 212, and a linkage rod 213 that can move up and down is provided in the handle 211, and the top of the linkage rod 213 is slidably connected to the button 212, and the linkage rod 213 is provided with a spring, and the linkage rod 213 is connected to the inner wall of the handle 211 through the provided spring, and the bottom of the linkage rod 213 is connected to the movable body 22. After holding the handle 211 to move the drainage tube so that the height of the drainage tube is lower than the height of the urine collection bag, the finger presses the button 212 so that the button 212 can overcome the action of the spring. The linkage rod 213 is driven by force to move in the direction away from the ring adjustment body 21, thereby driving the movable body 22 to move in the soft tube 11. The movement of the movable body 22 will drive the airbag control structure, thereby driving the inner wall of the soft tube 11 to move away from the surface of the movable body 22. The liquid in the urine collecting bag can be discharged outward through the soft tube 11 under the action of gravity. When discharging, it is necessary to hold the urine collecting bag with one hand and keep pressing the button 212 with the other hand to avoid the problem of the soft tube 11 being blocked due to the reset of the movable body 22 and the airbag control structure under the action of the spring. The outer wall of the handle 211 is provided with a wave groove for increasing friction. By providing the wave groove, the friction with the hand is increased, and the discharge tube can be stably held to facilitate the continuous pressing of the button 212 by the fingers.

[0043] The structures of the movable body 22 and the airbag control structure are disclosed in detail below:

[0044] like Figure 5 , Figure 6As shown, first recesses 111 for reducing the liquid flow cross-sectional area of ​​the soft tube 11 are provided at the upper and lower ends of the inner wall of the soft tube 11 near the discharge port and the discharge port, and the movable body 22 is a round rod connected to the upper and lower sections, and a rubber plug 221 for blocking the first recess 111 is provided on the round rod near the first recess 111, and brackets 23 are connected to both sides of the bottom end of the lower round rod, and a first inner rod 231 is provided at one end of the bracket 23, and the top of the first inner rod 231 is connected to the bottom end of the linkage rod 213. By pressing the button 212 with a finger, the button 212 overcomes the action of the spring and drives the linkage rod 213 to move in a direction away from the sleeve regulating body 21, and the linkage rod 213 further drives the movable body 22 to move through the first inner rod 231, so that the rubber plug 221 on the round rod of the movable body 22 is separated from the first recess 1 11, at this time, the liquid can enter the soft tube 11 through the gap between the first concave 111 and the rubber stopper 221, and then be discharged outward through the soft tube 11, and in order to limit the flow direction of the liquid, a deformable valve 222 is provided on the round rod, and the edge of the valve 222 is in contact with the inner wall of the soft tube 11. When the liquid flows into the soft tube 11 from the discharge port of the urine collecting bag, the liquid flows along the surface of the valve 222 and pushes the valve 222 to deform, so that the edge of the valve 222 does not contact the inner wall of the soft tube 11, and the liquid can flow through the gap between the valve 222 and the inner wall of the soft tube 11. When the liquid flows in the reverse direction, the liquid will push the valve 222 to deform so that the edge of the valve 222 fits with the inner wall of the soft tube 11, thereby blocking the inside of the soft tube 11, so that the liquid cannot flow back into the urine collecting bag.

[0045] like Figure 3 , Figure 5 , Figure 6 As shown, the airbag control structure includes an annular bag 121 and a bag tube 122 connected to the annular bag 121. The annular bag 121 is partially embedded in the inner wall of the hard sleeve 12. The surface of the annular bag 121 near the soft tube 11 is connected to the outer wall of the soft tube 11. The bracket 23 is provided with a second inner rod 232, which is plugged into and matched with the bottom end of the bag tube 122. A rubber pad for sealing is provided on the side wall of the second inner rod 232. By pressing the button 212 with a finger, the first inner rod 231 drives the movable body 22 to move, and the second inner rod 232 moves along the bag tube 122 in a direction away from the annular bag 121, as shown in FIG. Fig. 9 As shown by the middle arrow a, due to the increase in the volume inside the bag tube 122, the gas in the annular bag 121 is sucked into the bag tube 122, and the size of the annular bag 121 is reduced, driving the inner wall of the soft tube 11 connected thereto away from the surface of the round rod, so that the liquid can flow unimpeded in the soft tube 11, thereby facilitating the discharge of the liquid from the urine collecting bag.

[0046] After the liquid in the urine collection bag is discharged, the button 212 is released. Under the action of the spring, the linkage rod 213 is driven to reset by the spring and then the button 212 is driven to reset. During the resetting process of the linkage rod 213, the movable body 22 is driven to reset so that the rubber plug 221 contacts the first concave 111 and the second inner rod 232 moves in the opposite direction along the bag tube 122, and the gas in the bag tube 122 is pressed into the annular bag 121. The annular bag 121 becomes larger and drives the inner wall of the soft tube 11 close to the surface of the round rod. In order to ensure that the inner wall of the soft tube 11 can fit the surface of the round rod to block the soft tube 11, as shown in FIG. Figure 5 , Figure 7 As shown, the connection between the two round rods is provided with a clamping edge 223 for clamping the inner wall of the soft tube 11, and a limit rod 224 is provided at the top of the lower round rod, and the limit rod 224 is located inside the upper round rod. The lower round rod is plugged and matched with the upper round rod through the provided limit rod 224, as shown in FIG. Fig. 9 As shown by the middle arrow b, the size of the annular bag 121 increases, driving the soft tube 11 connected to the surface of the annular bag 121 to move inward to contact the locking edge 223. Under the action of the locking edge 223 of the upper and lower round rods, the inner wall of the soft tube 11 is clamped from the upper and lower ends, thereby ensuring that the inner wall of the soft tube 11 can fit with the surface of the round rod to block the soft tube 11, which can prevent liquid from flowing back into the urine collection bag.

[0047] Further, such as Figure 5 As shown, the contact point between the annular sac 121 and the surface of the soft tube 11 is a second concave 112, and the shape of the second concave 112 matches the shape of the annular sac 121. By setting the shape of the second concave 112 to match the shape of the annular sac 121, when the annular sac 121 expands, the second concave 112 can be driven to expand. Fig. 9 The second concave 112 moves in the direction indicated by the arrow b. In the process of being clamped by the clamping edge 223 and contacting the second concave 112, the upper and lower ends of the soft tube 11 are pulled inwardly by the second concave 112. Fig. 9 The rubber stopper 221 shrinks in the direction indicated by the arrow c, so that the rubber stopper 221 can fit closely with the first concave 111, thereby preventing the liquid from flowing back. Figure 8 As shown, the contact surface between the locking edge 223 and the second inner recess 112 is recessed inwards, and when the two locking edges 223 are combined, a groove similar to a spherical cavity can be formed, so that the second inner recess 112 therein can be better clamped.

[0048] When in use, the linkage rod 213 is driven by the spring to reset and then the button is reset. During the reset process of the linkage rod 213, the movable body 22 is reset, so that the rubber plug 221 contacts the first concave 111 and the second inner rod 232 moves in the opposite direction along the bag tube 122, and the gas in the bag tube 122 is pressed into the annular bag 121. The annular bag 121 becomes larger and drives the soft tube 11 to move inward to contact the clamping edge 223. Under the action of the clamping edge 223 of the upper and lower round rods, the inner wall of the soft tube 11 is clamped from the upper and lower ends, thereby ensuring that the inner wall of the soft tube 11 can be aligned with the surface of the round rod. The surface of the valve 222 is fitted to block the soft tube 11, which can prevent the liquid from flowing back into the urine collecting bag. At the same time, when the liquid flows into the soft tube 11 from the discharge port of the urine collecting bag, the liquid flows along the surface of the valve 222 and pushes the valve 222 to deform, so that the edge of the valve 222 does not contact the inner wall of the soft tube 11, and the liquid can flow through the gap between the valve 222 and the inner wall of the soft tube 11. When the liquid flows in the opposite direction, the liquid will push the valve 222 to deform so that the edge of the valve 222 fits with the inner wall of the soft tube 11, thereby blocking the inside of the soft tube 11, so that the liquid cannot flow back into the urine collecting bag.

[0049] When the shape of the second recess 112 is set to match the shape of the annular bag 121, when the annular bag 121 expands until the second recess contacts and is clamped by the locking edge, the upper and lower ends of the soft tube are pulled inward by the second recess, so that the rubber plug and the first recess can fit tightly, thereby ensuring that the liquid is prevented from flowing back.

[0050] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A drainage structure for a urine collecting bag, comprising a drainage pipe connected to the urine collecting bag, characterized in that: The liquid discharge pipe comprises a pipe body (1) and a pipe control unit (2) arranged on the pipe body (1); The tube body (1) comprises a soft tube (11) whose one end is connected to the discharge port of the urine collection bag, a hard sleeve (12) is sleeved on the surface of the soft tube (11), and an airbag control structure for squeezing the outer wall of the soft tube (11) is arranged inside the hard sleeve (12); The tube control unit (2) comprises a collar adjusting body (21) and a movable body (22) connected to the collar adjusting body (21); the collar adjusting body (21) is snap-fitted with the outer wall of the hard sleeve (12); the movable body (22) is located in the soft tube (11) and connected to the airbag control structure; when the movable body (22) moves upward, it contacts the inner wall of the soft tube (11) and drives the airbag control structure to reset; the airbag control structure squeezes and drives the soft tube (11) to deform and fit the surface of the movable body (22).

2. The drainage structure of the urine collection bag according to claim 1, characterized in that: The surface of the hard sleeve (12) is provided with an inwardly recessed hoop groove, the collar adjusting body (21) is an annular shell body clamped in the hoop groove on the surface of the hard sleeve (12), the bottoms of both ends of the collar adjusting body (21) are provided with handles (211) that fit on the surface of the hard sleeve (12), and a button (212) is inserted and matched at the connection between the collar adjusting body (21) and the handle (211), and a linkage rod (213) that moves up and down is provided in the handle (211), the top end of the linkage rod (213) is slidably connected to the button (212), the linkage rod (213) is connected to the inner wall of the handle (211) through a spring, and the bottom end of the linkage rod (213) is connected to the movable body (22).

3. The drainage structure of the urine collection bag according to claim 2, characterized in that: The outer wall of the handle (211) is provided with a wave groove for increasing friction.

4. The drainage structure of the urine collection bag according to claim 2, characterized in that: The inner wall of the soft conduit (11) is provided with first recesses (111) at both ends thereof for reducing the liquid flow cross-sectional area of ​​the soft conduit (11); the movable body (22) is a round rod connected to an upper and lower section; a rubber plug (221) for blocking the first recess (111) is provided on the round rod; brackets (23) are connected to both sides of the bottom end of the lower round rod; a first inner rod (231) is provided at one end of the bracket (23); the top end of the first inner rod (231) is connected to the bottom end of the linkage rod (213).

5. The drainage structure of the urine collection bag according to claim 4, characterized in that: A deformable valve (222) is provided on the round rod, and the edge of the valve (222) is in contact with the inner wall of the soft tube (11).

6. The drainage structure of the urine collection bag according to claim 4, characterized in that: The airbag control structure comprises an annular bag (121) and a bag tube (122) connected to the annular bag (121); the annular bag (121) is partially embedded in the inner wall of the hard sleeve (12); the surface of the annular bag (121) is connected to the outer wall of the soft tube (11); a second inner rod (232) is provided on the bracket (23); the second inner rod (232) is plugged into and matched with the bottom end of the bag tube (122); and a rubber pad for sealing is provided on the side wall of the second inner rod (232).

7. The drainage structure of the urine collection bag according to claim 6, characterized in that: A clamping edge (223) for clamping the inner wall of the soft passage (11) is provided at the connection between the two sections of the round rod.

8. The drainage structure of the urine collection bag according to claim 4, characterized in that: A limiting rod (224) is provided at the top end of the round rod of the lower section, and the round rod of the lower section is plug-fitted with the round rod of the upper section through the provided limiting rod (224).

9. The drainage structure of the urine collection bag according to claim 7, characterized in that: The contact point between the annular sac (121) and the surface of the soft tube (11) is a second concave (112), and the shape of the second concave (112) matches the shape of the annular sac (121).

10. The drainage structure of the urine collection bag according to claim 9, characterized in that: The contact surface between the locking edge (223) and the second inner recess (112) is recessed inwards.

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