Pressure-relief urine bag

Abstract

The present invention belongs to the field of medical instruments. Disclosed is a pressure-relief urine bag, comprising: a bag internally provided with a urine storage cavity, wherein an input tube communicating the outside with the urine storage cavity is provided on the bag, and fluid can enter the urine storage cavity through the input tube, but the fluid in the urine storage cavity cannot be drained through the input tube; a warning structure comprising a pressure-sensing member and a vibration member, wherein the pressure-sensing member is electrically connected to the vibration member, the warning structure is connected to the bag, the pressure-sensing member is located in the urine storage cavity, and when the occupied space in the urine storage cavity reaches a set value, the fluid presses the pressure-sensing member and causes the vibration member to vibrate and produce sound; and an output tube, which is connected to the bag at one end, and comprises a manual urine drainage tube and an automatic urine drainage tube, wherein one end of the manual urine drainage tube is in communication with the urine storage cavity. The present invention can alert a patient and medical staff when the urine bag is about to be full of urine, and even if the patient and medical staff fail to notice and allow the urine bag to fill up, the urine in the bag can still be drained through the automatic urine drainage tube, thereby effectively preventing leakage or bursting caused by excessive pressure in the urine bag.

Description

Pressure relief urine bag TECHNICAL FIELD

[0001] The present application belongs to the technical field of medical devices, and particularly relates to a pressure relief urine bag. BACKGROUND

[0002] As a commonly used medical device in clinical practice, a urine bag can reduce the number of times that a patient needs to go to the bathroom and find and use a urination device. The urine bag is in communication with the urethra of the patient, so that the patient can directly discharge urine into the urine bag without moving the body, and the patient can conveniently and safely discharge urine at any time and anywhere. However, most of the existing urine bags need to be fixed on the clothes or bed of the patient, and there is a risk of separation from the patient. Therefore, a urine bag that can be bound to the legs of the patient is designed, which directly contacts the skin of the patient and is covered by the trouser legs of the patient. Therefore, the patient or medical staff cannot intuitively understand the real-time remaining capacity of the urine bag through visual or auditory channels, and there is a risk of leakage or explosion of the urine bag when it is filled.

[0003] Therefore, a urine bag that can prevent explosion due to urine filling is designed, and the urine bag is specifically a pressure relief urine bag. SUMMARY

[0004] In order to overcome the problems in the background art, the present application adopts the following technical scheme:

[0005] A pressure relief urine bag comprises: a bag body, an internal storage cavity is arranged in the bag body, an input pipe in communication with the outside and the storage cavity is arranged on the bag body, fluid can enter the storage cavity through the input pipe, and fluid in the storage cavity cannot be discharged through the input pipe; a warning structure comprising a pressure sensing element and a vibrating element, the pressure sensing element is electrically connected with the vibrating element, the warning structure is connected with the bag body, the pressure sensing element is in the storage cavity, and when the occupied space in the storage cavity reaches a set value, the fluid in the storage cavity presses the pressure sensing element and makes the vibrating element vibrate and emit sound; and an output pipe, one end of the output pipe is connected with the bag body, the output pipe comprises a manual urination pipe and an automatic urination pipe, and one end of the manual urination pipe is in communication with the storage cavity.

[0006] Further, an insertion slot is arranged through the outer wall of the bag body, the insertion slot has a closing direction, a sealing gasket is arranged around the inner wall of the insertion slot, the warning structure is inserted into the insertion slot along the closing direction and is connected with the insertion slot in interference.

[0007] Further, a notch is arranged in the insertion slot, and a limiting piece is arranged on the warning structure, when the warning structure reaches the maximum stroke in the closing direction, the limiting piece is clamped into the notch, so that the warning structure cannot reciprocate in the closing direction.

[0008] Further, a fixing belt is arranged on the bag body to fix the bag body on the patient's limb.

[0009] Further, the vibration member comprises an eccentric rotating structure and a resonance loudspeaker structure.

[0010] Further, the pressure sensing member is arranged on one end of the warning structure in the closing direction, and the vibration member is arranged on the other end of the warning structure away from the closing direction; when the warning structure reaches the maximum stroke in the closing direction, neither the vibration member nor the pressure sensing member contacts the sealing pad. The sealing pad can be prevented from contacting the vibration member and weakening the vibration amplitude of the vibration member, and the elastic sealing pad can be prevented from pressing the pressure sensing member and affecting the accuracy of the pressure sensing member.

[0011] Further, a switch valve is arranged on the manual urine discharge tube, and when the switch valve is opened, the fluid flows out of the urine storage cavity through the manual urine discharge tube.

[0012] Further, one end of the automatic urine discharge tube is directly communicated with the urine storage cavity, the other end of the automatic urine discharge tube is communicated with the external environment, and a pressure relief valve is arranged on the automatic urine discharge tube; when the fluid in the urine storage cavity is full, the pressure relief valve is pushed open and the fluid is discharged through the automatic urine discharge tube.

[0013] Further, a buffer cavity is arranged in the bag body, one end of the automatic urine discharge tube is communicated with the buffer cavity, and a blocking belt is arranged between the buffer cavity and the urine storage cavity; when the fluid in the urine storage cavity is full, the fluid breaks through the blocking belt and flows into the buffer cavity, and the urine in the buffer cavity is discharged through the automatic urine discharge tube.

[0014] Further, at least one one-way valve is arranged in the automatic urine discharge tube; the fluid can be discharged through the automatic urine discharge tube, and the fluid cannot enter the buffer cavity through the automatic urine discharge tube.

[0015] Further, the automatic urine discharge tube and the manual urine discharge tube are not in contact with each other.

[0016] Further, one end of the automatic urine discharge tube away from the bag body is combined with one end of the manual urine discharge tube away from the bag body.

[0017] Further, the combined part of the manual urine discharge tube and the automatic urine discharge tube is a combined tube, and the fluid in the urine storage cavity is finally discharged through the combined tube.

[0018] Further, the set value of the urine amount in the urine storage cavity is related to the threshold value of the pressure sensing member; when the urine amount in the urine storage cavity reaches the set value, the fluid pressure in the urine storage cavity reaches the threshold value of the pressure sensing member, so that the pressure sensing member drives the vibration member to vibrate.

[0019] Further, the urine storage cavity occupies a space of not less than 50% of the space required for the urine storage cavity to reach the threshold of the pressure sensing element.

[0020] Advantages of the present application:

[0021] 1. By setting the warning structure, when the urine amount in the urine storage cavity reaches the set value, the fluid in the bag triggers the pressure sensing element, the pressure sensing element transmits the electrical signal to the vibration element, so that the eccentric rotating structure vibrates to give the patient a warning, and at the same time, the resonant loudspeaker structure makes a sound to warn the medical staff; even if the patient and the medical staff do not find the warning provided by the warning structure, and the urine in the urine storage cavity accumulates and is full, the urine can be discharged through the automatic urination tube, thereby effectively avoiding leakage or bursting of the urine bag, and having outstanding technical effects.

[0022] 2. After one urine bag is used up, the warning structure can be removed from the urine bag and put into a new urine bag for continuous use, which can effectively reduce the production cost and is more environmentally friendly. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor. Among them:

[0024] Fig. 1 is a schematic diagram of the overall structure of the embodiment 1 of the present application;

[0025] Fig. 2 is a schematic diagram of the partial cross-sectional structure of the embodiment 1 of the present application;

[0026] Fig. 3 is a schematic diagram of the enlarged structure at A in Fig. 2;

[0027] Fig. 4 is a schematic diagram of the enlarged structure at A when the bag body is not assembled with the warning structure;

[0028] Fig. 5 is a schematic diagram of the overall structure of the warning structure;

[0029] Fig. 6 is a schematic diagram of the enlarged structure at B in Fig. 2;

[0030] Fig. 7 is a schematic diagram of the cross-sectional structure of the embodiment 2 of the present application;

[0031] Fig. 8 is a schematic diagram of the enlarged structure at C in Fig. 7;

[0032] In the figure, 1, bag body; 11, urine storage cavity; 12, input pipe; 13, insertion slot; 131, notch; 132, limiting slot; 14, sealing pad; 15, closing direction; 16, buffer cavity; 17, blocking belt; 18, fixing belt; 2, warning structure; 21, pressure sensing piece; 22, vibrating piece; 23, limiting piece; 24, boss; 3, output pipe; 31, manual urine discharge pipe; 311, on-off valve; 32, automatic urine discharge pipe; 321, pressure relief valve; 33, merging pipe. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be described clearly and completely below through specific, specific embodiments. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Those skilled in the art can easily understand other advantages and effects of the present application from the content disclosed in the present specification. The present application can also be implemented or applied through other different specific embodiments. In the case of no conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0034] Embodiment 1

[0035] A pressure relief urine bag, as shown in FIGS. 1-6, comprises: a bag body 1, which is internally provided with a urine storage cavity 11, and the bag body 1 is provided with an input pipe 12 communicating with the outside and the urine storage cavity 11, and fluid can enter the urine storage cavity 11 through the input pipe 12, and the fluid includes urine and other liquids and gases entering the bag body 1, and the fluid in the urine storage cavity 11 cannot be discharged through the input pipe 12; a warning structure 2, which comprises a pressure sensing piece 21 and a vibrating piece 22, and the pressure sensing piece 21 and the vibrating piece 22 are electrically connected, and the warning structure 2 is connected with the bag body 1, and the pressure sensing piece 21 is in the urine storage cavity 11, and when the occupied space in the urine storage cavity 11 reaches a set value, the fluid in the urine storage cavity 11 presses the pressure sensing piece 21 and makes the vibrating piece 22 vibrate and produce sound; an output pipe 3, one end of which is connected with the bag body 1, and the output pipe 3 comprises a manual urine discharge pipe 31 and an automatic urine discharge pipe 32, and one end of the manual urine discharge pipe 31 communicates with the urine storage cavity 11.

[0036] More preferably, as shown in FIGS. 1-6, the bag body 1 is provided with a slot 13 through the outer wall, the slot 13 has a closing direction 15, a sealing pad 14 is annularly arranged on the inner wall of the slot 13, the warning structure 2 is inserted into the slot 13 along the closing direction 15 and is in interference connection with the slot 13, when the warning structure 2 is in interference fit with the slot 13, the inner wall of the slot 13 abuts against the outer wall of the warning structure 2, thereby preventing the warning structure 2 from being separated from the slot 13 under the action of urine pressure by increasing the surface friction; the pressure sensing piece 21 is arranged at one end of the warning structure 2 which is towards the closing direction 15, when the warning structure 2 approaches the urine storage cavity 11 through the slot 13, the pressure sensing piece 21 does not directly contact the bag body 1, when the warning structure 2 enters the bag body 1, the outer wall of the warning structure 2 needs to expand the inner wall of the slot 13, therefore a large pushing force is needed in the entering process, if the pressure sensing piece 21 contacts the inner wall of the slot 13 in the entering process, the pressure sensing piece 21 will be subjected to a reaction force based on the pushing force, it is easy to know that when the urine in the bag body 1 is about to be full, the urine pressure will be evenly distributed on each part of the inner wall of the urine storage cavity 11, at this time, the force received by the pressure sensing piece 21 is only the component force of the urine pressure in the bag body 1, and when the urine is not full, the pressure is obviously insufficient to expand the slot 13 which is in interference fit with the warning structure 2, the monitoring range required by the pressure sensing piece 21 to monitor the fullness of the urine must be smaller than the force required to push the warning structure 2 into the slot 13, and the pressure sensing piece 21 is a precision component, therefore the pressure sensing piece 21 which is subjected to the reaction force is easy to be damaged, thereby affecting the normal operation of the warning structure 2.

[0037] More preferably, as shown in FIGS. 1-6, the slot 13 is provided with a notch 131, and the warning structure 2 is provided with a limiting piece 23, which is clamped into the notch 131 when the warning structure 2 reaches the maximum stroke in the closing direction 15, so that the warning structure 2 cannot reciprocate in the closing direction 15. The limiting piece 23 is elastic, and during the movement of the warning structure 2 in the slot 13 in the closing direction 15, the limiting piece 23 is pressed against the outer wall of the warning structure 2 by the inner wall of the slot 13 and is in an energy storage state. When the warning structure 2 moves to the maximum stroke in the slot 13, the position of the limiting piece 23 corresponds to the notch 131. At this time, the limiting piece 23 stretches away from itself under the action of its own elasticity and turns into the notch 131. When the limiting piece 23 enters the notch 131, the limiting piece 23 will hinder movement in the reverse closing direction 15, thereby ensuring that the warning structure 2 cannot be separated from the slot 13. Specifically, the inner wall of the slot 13 has a limiting groove 132, and the outer wall of the warning structure 2 is provided with a boss 24. When the boss 24 abuts against the limiting groove 132 during the movement of the warning structure 2 in the closing direction 15, the warning structure 2 reaches the maximum stroke. At this time, the warning structure 2 cannot continue to penetrate into the slot 13. When the warning structure 2 reaches the maximum stroke, the pressure sensing piece 21 is opposite the urine storage cavity 11. At this time, the urine storage cavity 11 is only in communication with the input pipe 12 and the output pipe 3, thereby forming a relatively closed urine storage space. At this time, the capacity of the urine storage cavity 11 can correspond to the scale on the outer wall of the bag body 1.

[0038] Another more preferred embodiment is that the slot 13 is provided with a film near one end of the urine storage cavity 11. When the warning structure 2 moves to the maximum stroke in the slot 13, the pressure sensing piece 21 contacts the film. By providing the film, the pressure sensing piece 21 does not need to be directly in contact with the urine. The indirect pressure on the pressure sensing piece 21 by the urine through the film can make the pressure sensing piece 21 bear force more evenly. On the one hand, this can make the measured data more accurate. On the other hand, the warning structure 2 removed after the urine bag is discarded also does not need to be cleaned. Therefore, this mode is conducive to reducing production and manufacturing costs and can better avoid cross infection.

[0039] A more preferred embodiment is that, as shown in FIGS. 1-6, the bag body 1 is provided with a fixing belt 18, which fixes the bag body 1 on the patient's limbs. The number of the fixing belt 18 is several pairs. Each pair of the fixing belt 18 is composed of two fixing belts 18 symmetrically arranged on both sides of the bag body 1. The two fixing belts 18 are connected by arrayed metal buckles to achieve adjustable length connection, or the two fixing belts 18 are connected by magic tape to achieve adjustable length connection. The fixing belt 18 is composed of cotton or elastic fabric, so that it has good air permeability and skin-friendly effect.

[0040] More preferably, the vibration member 22 comprises an eccentric rotating structure and a resonant loudspeaker structure, which is specifically a buzzer or a piezoelectric ceramic sheet. The resonant loudspeaker structure is connected to the pressure sensor 21 through a wire. When the urine pressure in the urine storage cavity 11 reaches the threshold of imminent fullness, the pressure sensor 21 detects the change in pressure and then changes the output signal. At this time, the signal transmitted from the pressure sensor 21 to the vibration member 22 can make the resonant loudspeaker structure resonate and produce sound, thereby reminding the user or the guardian. The eccentric rotating structure is a micro motor with a cam. When the motor rotates, the micro cam constantly changes the center of gravity of the motor and makes the motor sway, thereby reminding the user through vibration. The eccentric rotating structure and the resonant loudspeaker structure are both prior art.

[0041] More preferably, as shown in FIGS. 1-6, the vibration member 22 is arranged on the warning structure 2 at the end away from the closing direction 15. After the warning structure 2 reaches the maximum stroke in the insertion slot 13 along the closing direction 15, neither the vibration member 22 nor the pressure sensor 21 contacts the sealing gasket 14. This can prevent the sealing gasket 14 from contacting the vibration member 22 and weakening the amplitude of the vibration member 22, and can also prevent the elastic sealing gasket 14 from pressing the pressure sensor 21 and affecting the accuracy of the pressure sensor 21. The sealing gasket 14 is made of silicone or rubber, so that the sealing gasket 14 not only provides good sealing and isolation conditions for both ends of the insertion slot 13, but also has excellent corrosion resistance, which can effectively prevent the urine seeping from the urine storage cavity 11 into the insertion slot 13 from passing through the sealing gasket 14 and reaching the outside world, which is conducive to improving the safety and hygiene of the pressure relief urine bag during use.

[0042] More preferably, as shown in Figs. 1-6, the manual urine discharge tube 31 is provided with an on-off valve 311, which is opened to allow the fluid to flow out of the urine storage cavity 11 through the manual urine discharge tube 31. One end of the automatic urine discharge tube 32 is in direct communication with the urine storage cavity 11, and the other end is in communication with the external environment. The automatic urine discharge tube 32 is provided with a pressure relief valve 321, which is pushed open by the fluid in the urine storage cavity 11 when it is full and then discharged through the automatic urine discharge tube 32. The pressure required to open the pressure relief valve 321 is less than the pressure required for the pressure sensing member 21 to transmit a signal to the vibrating member 22. Before the pressure relief valve 321 reaches the threshold for opening, the vibrating member 22 has already produced a sound prompt and a vibration prompt. Only when the prompt of the vibrating member 22 is ineffective can the pressure relief valve 321 be activated. When the pressure relief valve 321 is activated, the urine in the urine storage cavity 11 can be discharged from the bag 1 through the pressure relief valve 321, thereby preventing the bag 1 from exploding. After part of the urine is discharged, the pressure relief valve 321 is insufficiently pressed by the urine and closes the passage between the automatic urine discharge tube 32 and the urine storage cavity 11 again. The length of the automatic urine discharge tube 32 is not less than 40 cm, one end of which is in communication with the urine storage cavity 11, and the other end extends out of the bed through the patient's trouser leg, so that the excess urine discharged through the pressure relief valve 321 will not contaminate the patient's skin or bed, effectively preventing the patient's bed from being wet and the resulting problems of catching a cold and changing the bed, and also helping to maintain the patient's self-esteem.

[0043] More preferably, as shown in FIG. 1-6, a buffer cavity 16 is further provided in the bag body 1, which is used as a backup urine storage space after the urine storage cavity 11 is full, one end of the automatic urine discharge tube 32 is in communication with the buffer cavity 16, and urine cannot be discharged from the bag body 1 through the automatic urine discharge tube 32 before the buffer cavity 16 is in communication with the urine storage cavity 11. A blocking belt 17 is provided between the buffer cavity 16 and the urine storage cavity 11, and the fluid in the urine storage cavity 11 breaks through the blocking belt 17 and flows into the buffer cavity 16 after the urine storage cavity 11 is full, and the warning structure 2 will be triggered before the fluid breaks through the blocking belt 17 and enters the buffer cavity 16; when the user or guardian fails to receive the early warning from the warning structure 2 in time, the blocking belt 17 will be broken under the continuous increase of the fluid pressure in the bag body 1, so that the buffer cavity 16 and the urine storage cavity 11 are combined to reduce the fluid pressure in the bag body 1; after the urine storage cavity 11 and the buffer cavity 16 are combined, urine continues to be stored, and the fluid pressure in the bag continues to rise, and when the fluid in the bag body 1 is full again, the warning structure 2 vibrates or makes a sound for the second time, and if the user or guardian still does not find it, part of the fluid breaks through the pressure relief valve 321 and flows out through the automatic urine discharge tube 32, and after part of the fluid flows out, the pressure in the bag is reduced again and the pressure relief valve 321 is closed, which not only prevents the urine bag from bursting, but also constantly triggers the alarm of the warning structure 2, and greatly reduces the flow and flow rate of the fluid overflowed each time after the bag body 1 is full to prevent the splashing of urine or other fluids in the treatment environment, which not only ensures that the urine bag does not burst, but also prevents the patient's body surface from being contaminated by urine through the automatic urine discharge tube 32 that extends out of the patient's trouser leg and is placed outside the hospital bed. On the contrary, when the user or guardian receives the early warning from the warning structure 2 in time, and discharges the urine in the urine storage cavity 11 through the manual urine discharge tube 31, the blocking belt 17 does not need to be broken, and the buffer cavity 16 will continue to exist independently relative to the urine storage cavity 11.

[0044] More preferably, as shown in FIG. 1-6, the end of the automatic urine discharge tube 32 away from the bag body 1 is combined with the end of the manual urine discharge tube 31 away from the bag body 1. The combined part of the manual urine discharge tube 31 and the automatic urine discharge tube 32 is a combined tube 33, and the fluid in the urine storage cavity 11 is finally discharged through the combined tube 33.

[0045] More preferably, as shown in FIG. 1-6, the set value of the urine volume in the urine storage cavity 11 is related to the threshold value of the pressure sensing element 21, and when the urine volume in the urine storage cavity 11 reaches the set value, the fluid pressure in the urine storage cavity 11 reaches the threshold value of the pressure sensing element 21, so that the vibration element 22 of the pressure sensing element 21 vibrates. The occupied space of the urine storage cavity 11 required for the fluid pressure in the urine storage cavity 11 to reach the threshold value of the pressure sensing element 21 is not less than 50%.

[0046] Example 2

[0047] A pressure relief urinary bag, as shown in FIG. 1-8, comprises a bag body 1, which is internally provided with a urine storage cavity 11, and an input pipe 12, which is provided on the bag body 1 and is in communication with the outside and the urine storage cavity 11, so that fluid can enter the urine storage cavity 11 through the input pipe 12, and the fluid in the urine storage cavity 11 cannot be discharged through the input pipe 12; a warning structure 2, which comprises a pressure sensing member 21 and a vibrating member 22, the pressure sensing member 21 is electrically connected with the vibrating member 22, the warning structure 2 is connected with the bag body 1, the pressure sensing member 21 is located in the urine storage cavity 11, and when the occupied space in the urine storage cavity 11 reaches a set value, the fluid in the urine storage cavity 11 presses the pressure sensing member 21 and makes the vibrating member 22 vibrate and emit sound; an output pipe 3, one end of which is connected with the bag body 1, the output pipe 3 comprises a manual urine discharge pipe 31 and an automatic urine discharge pipe 32, one end of the manual urine discharge pipe 31 is in communication with the urine storage cavity 11.

[0048] The difference between the present embodiment and embodiment 1 is that the bag body 1 is further provided with a buffer cavity 16, one end of the automatic urine discharge pipe 32 is in communication with the buffer cavity 16, and a blocking belt 17 is arranged between the buffer cavity 16 and the urine storage cavity 11, so that when the fluid in the urine storage cavity 11 is full, it breaks through the blocking belt 17 and flows into the buffer cavity 16, and the urine in the buffer cavity 16 is discharged through the automatic urine discharge pipe 32.

[0049] More preferably, as shown in FIG. 1-8, at least one one-way valve is arranged in the automatic urine discharge pipe 32, a resilient member is arranged between the one-way valve and the inner wall of the automatic urine discharge pipe 32, the resilient member is used to maintain the one-way valve in a closed state, the fluid can be discharged through the automatic urine discharge pipe 32 when the pressure of the fluid is greater than the pressure provided by the resilient member to the one-way valve, the one-way valve prevents the fluid from entering the buffer cavity 16 through the automatic urine discharge pipe 32, and the automatic urine discharge pipe 32 and the manual urine discharge pipe 31 do not contact each other.

[0050] Another more preferred embodiment is that the end of the automatic urine discharge pipe 32 away from the bag body 1 is combined with the end of the manual urine discharge pipe 31 away from the bag body 1. The combined part of the manual urine discharge pipe 31 and the automatic urine discharge pipe 32 is a combined pipe 33, and the fluid in the urine storage cavity 11 is finally discharged through the combined pipe 33.

Claims

1. A pressure relief urinary bag, characterized by, The bag body is internally provided with a urine storage cavity, and an input pipe is arranged on the bag body to communicate the outside with the urine storage cavity. Fluid can enter the urine storage cavity through the input pipe, and fluid in the urine storage cavity cannot be discharged through the input pipe. The warning structure comprises a pressure sensor and a vibration element, and the pressure sensor is electrically connected with the vibration element. The warning structure is connected with the bag body, and the pressure sensor is arranged in the urine storage cavity. When the occupied space in the urine storage cavity reaches a set value, the fluid presses the pressure sensor and makes the vibration element vibrate and emit sound. An output pipe is connected with the bag body, and the output pipe comprises a manual urine discharge pipe and an automatic urine discharge pipe. One end of the manual urine discharge pipe is communicated with the urine storage cavity. The bag body is provided with a slot penetrating through the outer wall, and the slot has a closing direction. A sealing gasket is arranged on the inner wall of the slot. The warning structure is inserted into the slot in the closing direction and is connected with the slot in interference. The slot is provided with a notch, and the warning structure is provided with a limiting piece. When the warning structure reaches the maximum stroke in the closing direction, the limiting piece is clamped into the notch, so that the warning structure cannot reciprocate in the closing direction. The pressure sensor is arranged on one end of the warning structure facing the closing direction, and the vibration element is arranged on the other end of the warning structure away from the closing direction. When the warning structure reaches the maximum stroke in the slot in the closing direction, neither the vibration element nor the pressure sensor contacts the sealing gasket. The manual urine discharge pipe is provided with a switch valve. When the switch valve is opened, fluid flows out of the urine storage cavity through the manual urine discharge pipe.

2. The pressure relief urinary bag according to claim 1, wherein One end of the automatic urine discharge pipe is directly communicated with the urine storage cavity, and the other end of the automatic urine discharge pipe is communicated with the external environment. The automatic urine discharge pipe is provided with a pressure relief valve. When the fluid in the urine storage cavity is full, the pressure relief valve is pushed open and the fluid is discharged through the automatic urine discharge pipe.

3. The pressure relief urinary bag according to claim 1, wherein The bag body is further provided with a buffer cavity. One end of the automatic urine discharge pipe is communicated with the buffer cavity, and a blocking belt is arranged between the buffer cavity and the urine storage cavity. When the fluid in the urine storage cavity is full, the fluid breaks through the blocking belt and flows into the buffer cavity. The urine in the buffer cavity is discharged through the automatic urine discharge pipe.

4. The pressure relief urinary bag according to claim 1, wherein The automatic urine discharge pipe is provided with at least one one-way valve. Fluid can be discharged through the automatic urine discharge pipe, and fluid cannot enter the buffer cavity through the automatic urine discharge pipe.

5. The pressure relief urinary bag according to claim 4, wherein The automatic urine discharge pipe and the manual urine discharge pipe do not contact each other or are combined with each other.

6. A pressure relief urine bag according to any one of claims 4 or 5, wherein, The occupied space of the urine storage cavity required for the fluid to press the pressure sensor and make the vibration element vibrate and emit sound is not less than 50%.

7. The pressure relief urinary bag according to claim 1, wherein ​

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