Urine collection bag, anti-overflow structure and collection method

Abstract

The invention discloses a urine collection bag, and relates to the technical field of medical instruments, the urine collection bag comprises a bag body, an access pipe is embedded in an inlet socket, one end of the access pipe is exposed out of the inlet socket and is used for externally connecting an extension pipe, and the other end of the access pipe enters the bag body through the inlet socket; a sampling pipe is inserted into the collecting inserting opening and is used for temporarily closing the collecting inserting opening and preventing urine from overflowing; one end of the sampling tube exposed out of the collection socket is connected with a rubber air bag, and the end part of the sampling tube enters the bag body to form a longitudinal reinforcer to prevent the bag body from bending; an anti-overflow structure is also provided and is used for the urine collection bag to prevent the urine in the bag body from overflowing reversely; the invention further discloses a urine collection anti-overflow method. The urine collection bag can be used for clinical urine collection, the anti-overflow structure is arranged, when the bag body is subjected to external force, the reflux phenomenon caused by pressure increase in the bag body can be avoided, and normal collection of urine is not affected; and non-contact sampling can be carried out in the collecting bag, and the device is used for clinical detection.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a urine collection bag, an anti-overflow structure and a collection method. Background Art

[0002] Urine collection bags are medical devices used to collect and store urine. They play an important role in clinical diagnosis, disease monitoring, and daily patient care, helping medical staff obtain accurate urine samples or facilitating urine management for patients. Clinically, urine collection bags are typically made from medical-grade materials such as polyvinyl chloride (PVC) and polyethylene (PE). They offer excellent flexibility, transparency, and chemical stability, are resistant to urine corrosion, and facilitate observation of urine color, properties, and collected volume. Clear volume markings are printed on the bag surface, typically with a minimum mark of 10ml or 20ml, making it easy for medical staff to accurately read urine volumes.

[0003] For hospitalized patients, especially those with severe illnesses, continuous monitoring of urine volume is an important means of evaluating important physiological indicators such as renal function and circulating blood volume. Urine collection bags can accurately collect urine and provide a basis for medical staff's diagnosis and treatment. Clinically, urine collection bags are connected to the patient's urethra through a catheter. During actual use, the urine bag is affected by many factors such as patient factors and the external environment, and there is a risk of overflow. If the collection bag is squeezed by clothing, bedding or other objects during use, causing internal pressure to be generated, it will cause urine to reflux into the catheter, affecting the patient's normal urination. At the same time, the urine that has been discharged will be contaminated, bringing the risk of secondary infection to the urethra. Summary of the Invention

[0004] The object of the present invention is to provide a urine collection bag, an anti-overflow structure and a collection method to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solutions: a urine collection bag, comprising a bag body, wherein the bag body has an entry socket and a collection socket; An access tube is embedded in the entry socket, one end of the access tube leaks out of the entry socket for connecting to an external extension tube, and the other end passes through the entry socket into the bag body; The outer wall of one end of the access pipe located in the bag body is connected to a pressure relief pipe extending from the side wall of the access socket; A sampling tube is inserted into the collection socket, and the sampling tube is used to temporarily close the collection socket to prevent urine from overflowing; One end of the sampling tube leaking out of the collection socket is connected to a rubber airbag, and the end of the sampling tube enters the bag body to form a longitudinal reinforcement to prevent the bag body from bending.

[0006] In a further embodiment, two hollow sleeves are symmetrically connected to the side wall of one end of the sampling tube leaking out of the collection socket, and the hollow sleeves are connected to the sampling tube. A sealing plug that passes through the sampling tube horizontally is inserted between the two hollow sleeves, and the sealing plug has a narrowing portion, and the width of the narrowing portion is equal to the inner diameter of the sampling tube.

[0007] In a further embodiment, a spherical expansion portion is provided in the middle section of the pressure relief pipe, the spherical expansion portion is provided with an opening connected to the pressure relief pipe, a floating block is provided in the spherical expansion portion, the diameter of the floating block is smaller than the diameter of the spherical expansion portion, and the surface wall area of ​​the floating block is larger than the area of ​​the opening.

[0008] In a further embodiment, a T-shaped rod is connected to the side wall of the floating block facing the opening of the pressure relief pipe port, and the T-shaped rod enters the pressure relief pipe near the end through the opening.

[0009] In a further embodiment, at least two pads are provided on the side of the side wall of the floating block facing away from the port opening of the pressure relief pipe.

[0010] In a further embodiment, an edge water-absorbing layer is provided at the inner edge of the bag body, and the edge water-absorbing layer is connected to the upper and lower side walls at the edge of the bag body to form a space embedded with an adsorption material. The adsorption material absorbs urine entering the bag body through the edge water-absorbing layer and condenses into blocks, which expand and become larger in the space to form reinforced edge ridges at the edge of the bag body.

[0011] The anti-overflow structure is used for the urine collection bag, including a drainage sheet. One end of the access tube located in the bag body is connected to a hollow drainage head with a flat structure. One end of the drainage sheet is adhered to one of the side walls inside the opening of the hollow drainage head. The drainage sheet extends from the inside of the hollow drainage head to the outside of the opening of the hollow drainage head to form an extended end, and the length of the extended end is greater than the length of the short side of the opening of the hollow drainage head.

[0012] In a further embodiment, a row of arc-shaped toggle whiskers is provided on one of the long side walls of the opening of the hollow drainage head, and the ends of the arc-shaped toggle whiskers are pressed on the extended end of the drainage plate and inclined toward and contact the other long side wall of the hollow drainage head opening.

[0013] In a further embodiment, when no urine passes through the hollow drainage head, the extended end is inclined and fitted against the other long side wall of the opening of the hollow drainage head, thereby cutting off the path for urine to flow from the bag body into the hollow drainage head in the reverse direction. When urine passes through the hollow drainage head, the urine flows as a fluid between the extension end and the opening of the hollow drainage head and enters the bag body.

[0014] In a further embodiment, the hollow drainage head is a fan-shaped structure, and the width of the extended end of the drainage piece is greater than the opening width of the hollow drainage head.

[0015] The urine collection anti-overflow method, according to the anti-overflow structure, comprises the following steps: A1. The end of the access tube that leaks into the socket is connected to an extension tube. The end of the extension tube is inserted into the patient's urethra. The opening of the collection socket is sealed by the sampling tube. Urine discharged from the patient's urethra enters the access tube through the extension tube and flows from the access tube into the bag body to complete urine collection; A2. When urine passes through the hollow drainage head, the urine flows as a fluid between the extension end and the opening of the hollow drainage head and enters the bag body; A3. The arc-shaped pushers must be distributed in clusters, with their ends being able to push the extended end of the drainage piece against the other long side wall of the hollow drainage head opening. When no urine is passing through the hollow drainage head opening, the hollow drainage head opening is temporarily closed, thus cutting off the path for urine backflow. A4. At the same time, when urine refluxes, it will impact the extended end. Through the tilting and pressing of the arc-shaped whiskers, the extended end, which is already curved, will bend further and fit more closely to the side wall of the opening of the hollow drainage head, thus cutting off the reflux path and preventing urine from flowing back into the access tube.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The present invention can be used for clinical urine collection. By arranging an anti-overflow structure, when the bag body is subjected to external force, the backflow phenomenon caused by the increase of pressure in the bag body can be avoided, and the normal collection of urine will not be affected. During the collection process, the sampling tube is supported in the bag body and the filled flexible expansion part formed at the side position can prevent the bag body from being bent and causing backflow. It is also possible to perform contactless sampling in the collection bag for clinical testing. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the main structure of the present invention; Figure 2 This is a schematic diagram of the access pipe structure of the present invention; Figure 3 A partial cross-sectional view of the access pipe of the present invention; Figure 4 This is a schematic diagram of the partial structure of the access pipe of the present invention; Figure 5 and Figure 6 They are all cross-sectional views of the pressure relief pipe structure of the present invention; Figure 7 This is a schematic diagram of the assembly structure of the sampling tube and the sealing plug of the present invention; Figure 8 This is a schematic diagram of the sampling tube structure of the present invention; Figure 9 Schematic diagram of the sealing plug structure of the present invention; Figure 10 and Figure 11All are partial cross-sectional views of the sealing plug of the present invention being adjusted laterally in a sampling tube; Figure 12 It is a partial cross-sectional view of the bag body of the present invention; Figure 13 A partial cross-sectional view of the expanded edge of the bag body of the present invention; Figure 14 This is a disassembly schematic diagram of the sampling tube of the present invention being pulled out from the collection socket of the inverted bag body.

[0018] In the figure: 1. Bag body; 11. Access tube; 12. Collection socket; 13. Edge water absorption layer; 131. Adsorption material; 14. Pressure relief pipe; 141. Spherical expansion part; 142. Float; 143. T-shaped plug; 144. Spacer; 15. Hollow drainage head; 16. Drainage plate; 17. Arc-shaped toggle whisker; 2. Sampling tube; 21. Rubber airbag; 22. Hollow sleeve; 23. Sealing plug; 231. Reduction part. DETAILED DESCRIPTION

[0019] The following is a clear and complete description of the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts are within the scope of protection of the present invention.

[0020] Embodiment, this embodiment provides a urine collection bag, including a bag body 1, such as Figure 1 As shown, the bag body 1 has an entry socket and a collection socket 12; the bag body 1 is a hollow structure for accommodating urine.

[0021] At the same time, an access tube 11 is embedded in the entry socket, one end of the access tube 11 leaks out of the entry socket for connecting to an external extension tube, and the other end passes through the entry socket into the bag body 1; the outer wall of one end of the access tube 11 located in the bag body 1 is connected to a pressure relief pipe 14 extending from the side wall of the entry socket; a sampling tube 2 is inserted into the collection socket 12, and the sampling tube 2 is used to temporarily close the collection socket 12 to prevent urine from overflowing, such as Figure 1 shown.

[0022] When collecting urine, first Figure 1 The middle bag 1 is located in a manner similar to the following: a hanging rope is passed through the hanging holes on both sides of the access port, and then connected to form a hanging ring. The middle bag 1 is hung from the bed frame guardrail, and the height is as low as possible below the patient's lying height. The end of the access tube 11 that leaks out of the access port is connected to an extension tube. The end of the extension tube is inserted into the patient's urethra. The opening of the collection port 12 is sealed by the sampling tube 2. Urine discharged from the patient's urethra enters the access tube 11 through the extension tube, and then flows from the access tube 11 into the bag 1, completing the urine collection.

[0023] In addition, if Figure 1 As shown, one end of the sampling tube 2 leaking out of the collection socket 12 is connected to a rubber airbag 21, and the end of the sampling tube 2 enters the bag body 1 to form a longitudinal reinforcement to prevent the collection socket 12 and the entry socket of the bag body 1 from folding and bending, so as to avoid increasing the pressure in the bag body 1 and causing urine reflux and overflow.

[0024] At the same time, an edge water absorption layer 13 is provided at the inner edge of the bag body 1. The edge water absorption layer 13 is connected to the upper and lower side walls of the inner edge of the bag body 1 and forms a space with an adsorption material 131 embedded therein. Figure 12 As shown, before absorbing urine, the adsorbent material 131 is in a flat state and not filled. Figure 13 As shown, the edge absorbent layer 13 is made of pure cotton fabric, which is highly absorbent. Once the absorbent material 131 absorbs urine entering the bag 1 through the edge absorbent layer 13, it condenses into lumps, expands within the space, and forms reinforced ridges at the edge of the bag 1. The absorbent material 131 is made of polymer particles primarily composed of acrylic acid (salt), which form a three-dimensional network structure through a cross-linking reaction. The carboxyl groups on the particles' molecular chains ionize into negatively charged carboxylates upon contact with urine. These hydrogen bonds with the water molecules in the urine, forming a hydrogel network that locks the urine inside and increases its volume within the space. This creates a flexible expansion at the edge of the bag 1 between the inlet and collection ports 12. Although its rigidity is limited, the flexible expansion, filled with urine, prevents curling of the edge of the bag 1 and generates no additional internal pressure, thereby minimizing urine reflux.

[0025] During the collection process, since only urine enters the bag 1, as the amount of urine collected gradually increases, the pressure inside the bag 1 also increases. This pressure will enter the extension tube through the access tube 11, increasing the resistance to urination at the urethral opening. This is especially true for some kidney patients who have difficulty urinating due to their disease. If additional resistance is added during the collection process, it will further affect the patient's smooth urination. Therefore, the high pressure inside the bag 1 is discharged through the pressure relief tube 14, balancing the pressure difference between the inside and outside of the bag 1, making it easier for the patient to urinate without resistance.

[0026] Specifically, if Figure 1 、 Figure 5 and Figure 6 As shown, a spherical expansion portion 141 is provided in the middle of the pressure relief pipe 14. This spherical expansion portion 141 has an opening that communicates with the pressure relief pipe 14. A float 142 is located within this spherical expansion portion 141. A T-shaped rod 143 is connected to the sidewall of the float 142 facing the opening of the pressure relief pipe 14. The T-shaped rod 143 passes through the opening and enters the pressure relief pipe 14 near the end. At least two spacers 144 are located on the sidewall of the float 142 facing away from the opening of the pressure relief pipe 14.

[0027] During the normal urine collection process, the bag 1 is hung on the side rail of the bed. The bag 1 is not full. At this time, the float 142 is located in the spherical expansion part 141, and two pads 144 are used to press against the bottom wall of the spherical expansion part 141 to prevent the bottom wall of the float 142 from contacting the opening below and affecting the flow of gas inside and outside. Figure 5 In the state shown, outside air enters from the opening at the end of the pressure relief pipe 14 into the two openings of the spherical expansion portion 141 and into the access pipe 11, and finally into the bag body 1 to balance the internal and external pressure difference. Figure 5 It can be clearly seen that the diameter of the float 142 is smaller than the diameter of the spherical enlarged portion 141 , which can prevent the edge side wall of the float 142 from sticking to the inner wall of the spherical enlarged portion 141 and affecting the internal and external air pressure exchange.

[0028] Once the bag 1 is full of urine, the urine may flow into the pressure relief pipe 14 and into the spherical expansion portion 141. At this time, the float 142 floats on the surface of the urine. As the urine continues to flow back, the height of the float 142 gradually increases until it is completely attached to the opening at the upper end of the spherical expansion portion 141, closing the overflow path. Figure 6 It can be clearly seen that the surface area of ​​the floating block 142 is larger than the area of ​​the opening, which can seal the opening at the upper end of the spherical expansion part 141 to prevent overflow. At the same time, the T-shaped rod 143 provides a guide for the floating block 142. The floating block 142 is subjected to the buoyancy of urine and floats upward, which may deviate from the upper opening. In this case, the T-shaped rod 143 is used to guide it. As the floating block 142 continues to float, the floating position is gradually adjusted to the direction facing the upper opening, thereby preventing the floating block 142 from deviating from the opening at the upper end of the spherical expansion part 141 and affecting the sealing effect. In addition, Figure 5 and Figure 6 It can be seen that the side wall of the end of the T-shaped rod 143 is a spherical structure, and the contact between the T-shaped rod 143 and the inner wall of the pressure relief pipe 14 is point contact, which minimizes the sliding friction resistance between the T-shaped rod 143 and the pressure relief pipe 14 when floating with the floating block 142.

[0029] In addition to being a temporary seal to seal the collection port 12, the sampling tube 2 also has another function of mixing and stirring the urine collected in the bag 1 for 24 hours before collection for clinical testing and assisting doctors in diagnosis. Figure 1 、 Figure 7 、 Figure 8 and Figure 9 As shown, two hollow sleeves 22 are symmetrically connected to the side wall of one end of the sampling tube 2 leaking out of the collection socket 12, and the hollow sleeves 22 are connected to the sampling tube 2. A sealing plug 23 that transversely penetrates the sampling tube 2 is inserted between the two hollow sleeves 22. The sealing plug 23 has a reduced portion 231, and the width of the reduced portion 231 is equal to the inner diameter of the sampling tube 2.

[0030] When the bag 1 is collecting urine normally, the sampling tube 2 cannot be connected to the outside world. Figure 10 In the manner shown, the sealing plug 23 is Figure 10 The status shown is Figure 10 The right side shown pushes the sealing plug 23 toward the left side, and the outer wall of the sealing plug 23 is fitted onto the radial side walls inside the two hollow sleeves 22 to block the openings of the two hollow sleeves 22 and prevent urine from overflowing from the two hollow sleeves 22 of the sampling tube 2.

[0031] After the collection, the urine needs to be sampled and tested, so refer to Figure 14 In the state shown, the bag body 1 is turned upside down with the collection socket 12 opening facing upwards. Figure 11 The sealing plug 23 is installed as shown in the following figure. Figure 11 Push the sealing plug 23 from the left side to the right side, and place the narrowing part 231 in the sampling tube 2 to ensure that when the rubber airbag 21 is squeezed, it can smoothly enter the sampling tube 2. Then squeeze the rubber airbag 21 repeatedly to temporarily and frequently increase the impact force in the bag body 1, which helps the urine to mix in the bag body 1. The reason for this is that some patients with urinary tract infections will have stratification for a long time after urination. In order to ensure the accuracy of the test results, pressure is applied through the rubber airbag 21 to drive the urine in the bag body 1 to mix. Finally, let go after squeezing the rubber airbag 21, and the rubber airbag 21 will reset to generate negative pressure, and the mixed urine will be sucked into the sampling tube 2 for inspection. This method realizes the method of sampling before the urine is discharged, that is, a contactless sampling method, which avoids secondary contamination of urine and affects the accuracy of the detection structure.

[0032] This embodiment also discloses an anti-overflow structure for a urine collection bag, including a drainage sheet 16. One end of the access tube 11 located inside the bag body 1 is connected to a hollow drainage head 15 with a flat structure. One end of the drainage sheet 16 is adhered to one side wall of the opening of the hollow drainage head 15. The drainage sheet 16 extends from the inside of the hollow drainage head 15 to the outside of the opening of the hollow drainage head 15 to form an extended end. The length of the extended end is greater than the length of the short side of the opening of the hollow drainage head 15. Specifically, Figure 2 、 Figure 3 and Figure 4As shown, a row of arc-shaped whiskers 17 is provided on one of the long side walls of the opening of the hollow drainage head 15. The ends of the arc-shaped whiskers 17 press against the extended end of the drainage plate 16 and tilt toward and contact the other long side wall of the opening of the hollow drainage head 15. The arc-shaped whiskers 17 are made of bristles, i.e., the hard hairs found on the necks, backs, or tails of animals such as pigs and horses. The arc-shaped whiskers 17 are arranged in clusters and have sufficient strength but are not flexible. Their ends can push the extended end of the drainage plate 16 to adhere to the other long side wall of the opening of the hollow drainage head 15. The drainage plate 16 is made of a thin film (low-density polyethylene) that is flexible and adheres well. When subjected to slight pressure from the arc-shaped whiskers 17, it can adhere to the other long side wall of the opening of the hollow drainage head 15, temporarily sealing the opening of the hollow drainage head 15 when no urine is passing through it.

[0033] Then, when no urine passes through the hollow drainage head 15 , the extended end is tilted and fitted on the other long side wall of the opening of the hollow drainage head 15 , cutting off the path for urine to enter the hollow drainage head 15 from the bag body 1 in the reverse direction.

[0034] When urine passes through the hollow drainage head 15 , the urine flows as a fluid between the extension end and the opening of the hollow drainage head 15 and enters the bag body 1 .

[0035] Once urine refluxes, it will impact the extended end. Through the tilting and pressing of the arc-shaped moving whiskers 17, the extended end, which is already curved, will bend further and fit more closely to the side wall of the opening of the hollow drainage head 15, thus breaking the reflux path and preventing urine from refluxing into the access tube 11.

[0036] The above structure satisfies the requirement that urine enters the bag body 1 smoothly. At the same time, the extended end of the drainage sheet 16 is pushed to fit on the other long side wall of the opening of the hollow drainage head 15 through the multiple clusters of arc-shaped moving whiskers 17 distributed in rows to cut off the path for urine backflow.

[0037] Moreover, if Figure 2 As shown, the hollow drainage head 15 has a fan-shaped structure, and the width of the extended end of the drainage sheet 16 is larger than the width of the opening of the hollow drainage head 15. After actual testing, the applicant found that when the width of the extended end is wider, when urine backflows and impacts the extended end, the extended end can only bend, fitting more closely to the side wall of the opening of the hollow drainage head 15, thus disconnecting the backflow path. At the same time, because the extended short width is wider, the backflow urine cannot be flushed into the hollow drainage head 15. In this case, the extended end cannot fit on the other long side wall of the opening of the hollow drainage head 15, disconnecting the path for urine to enter the hollow drainage head 15 from the bag body 1. Once urine backflows, it cannot be prevented. Therefore, setting the extended end width smaller can solve the problem of preventing urine from being flushed into the hollow drainage head 15 without adding other structures. The structural design is ingenious and simple, suitable for clinical promotion and application.

[0038] This embodiment also discloses a urine collection anti-overflow method, which includes the following steps according to the anti-overflow structure: A1. An extension tube is connected to one end of the access tube 11 that leaks out of the socket. The end of the extension tube is inserted into the patient's urethra. The opening of the collection socket 12 is sealed by the sampling tube 2. Urine discharged from the patient's urethra enters the access tube 11 through the extension tube and flows from the access tube 11 into the bag body 1 to achieve urine collection. A2. When urine passes through the hollow drainage head 15, the urine flows as a fluid between the extension end and the opening of the hollow drainage head 15 and enters the bag body 1; A3, the arc-shaped toggle whiskers 17 are distributed in clusters, and their ends can push the extended end of the drainage sheet 16 to fit on the other long side wall of the opening of the hollow drainage head 15. When no urine passes through the opening of the hollow drainage head 15, the opening of the hollow drainage head 15 is temporarily closed to cut off the path for urine backflow; A4. At the same time, when urine refluxes, it will impact the extended end. Through the tilting and pressing of the arc-shaped toggle whiskers 17, the extended end, which is already curved, will bend further and fit more closely to the side wall of the opening of the hollow drainage head 15, thus disconnecting the reflux path and preventing urine from refluxing into the access tube 11.

[0039] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A urine collection bag, characterized in that: include: A bag body (1), the bag body (1) having an entry socket and a collection socket (12); An access tube (11) is embedded in the entry socket, one end of the access tube (11) leaks out of the entry socket for connecting to an external extension tube, and the other end passes through the entry socket to enter the bag body (1); The outer wall of one end of the access pipe (11) located in the bag body (1) is connected to a pressure relief pipe (14) extending from the side wall of the access socket; A sampling tube (2) is inserted into the collection socket (12), and the sampling tube (2) is used to temporarily close the collection socket (12) to prevent urine from overflowing; One end of the sampling tube (2) leaking out of the collection socket (12) is connected to a rubber airbag (21), and the end of the sampling tube (2) enters the bag body (1) to form a longitudinal reinforcement to prevent the bag body (1) from bending.

2. The urine collection bag according to claim 1, characterized in that: Two hollow sleeves (22) are symmetrically connected to the side wall of one end of the sampling tube (2) leaking out of the collection socket (12), and the hollow sleeves (22) are communicated with the sampling tube (2). A sealing plug (23) is inserted between the two hollow sleeves (22) and passes through the sampling tube (2) transversely. The sealing plug (23) has a reduced portion (231), and the width of the reduced portion (231) is equal to the inner diameter of the sampling tube (2).

3. The urine collection bag according to claim 1, characterized in that: A spherical expansion portion (141) is provided at the middle portion of the pressure relief pipe (14), and the spherical expansion portion (141) is provided with an opening communicating with the pressure relief pipe (14). A floating block (142) is provided in the spherical expansion portion (141), and the diameter of the floating block (142) is smaller than the diameter of the spherical expansion portion (141), and the surface area of ​​the floating block (142) is larger than the area of ​​the opening.

4. The urine collection bag according to claim 3, characterized in that: A T-shaped insert rod (143) is connected to a side wall of the floating block (142) facing the port opening of the pressure relief pipe (14), and the T-shaped insert rod (143) enters the pressure relief pipe (14) near the end through the opening.

5. The urine collection bag according to claim 4, characterized in that: At least two cushion blocks (144) are provided on the side wall of the floating block (142) facing away from the port opening of the pressure relief pipe (14).

6. The urine collection bag according to claim 1, characterized in that: An edge water-absorbing layer (13) is provided at the inner edge of the bag body (1). The edge water-absorbing layer (13) is connected to the upper and lower side walls at the inner edge of the bag body (1), and forms a space in which an adsorption material (131) is embedded. The adsorption material (131) absorbs urine entering the bag body (1) through the edge water-absorbing layer (13) and condenses into blocks, which expand and become larger in the space, thereby forming a reinforced edge at the edge of the bag body (1).

7. An anti-overflow structure for a urine collection bag according to any one of claims 1 to 5, characterized in that: The bag comprises a drainage piece (16), one end of the access tube (11) located in the bag body (1) is connected to a hollow drainage head (15) with a flat structure, one end of the drainage piece (16) is adhered to one side wall of the opening of the hollow drainage head (15), and the drainage piece (16) extends from the inside of the hollow drainage head (15) to the outside of the opening of the hollow drainage head (15) to form an extended end, and the length of the extended end is greater than the length of the short side of the opening of the hollow drainage head (15); a row of arc-shaped toggling whiskers (17) is provided on one long side wall of the opening of the hollow drainage head (15), and the end of the arc-shaped toggling whiskers (17) is pressed on the extended end of the drainage piece (16) and tilted toward and contacted with the other long side wall of the opening of the hollow drainage head (15).

8. The anti-overflow structure according to claim 6, characterized in that: When no urine passes through the hollow drainage head (15), the extended end is tilted and fitted on the other long side wall of the opening of the hollow drainage head (15), thereby cutting off the passage for urine to flow from the bag body (1) into the hollow drainage head (15) in the reverse direction; When urine passes through the hollow drainage head (15), the urine flows as a fluid between the extension end and the opening of the hollow drainage head (15) and enters the bag body (1).

9. The anti-overflow structure according to claim 6, characterized in that: The hollow drainage head (15) is a fan-shaped structure, and the width of the extended end of the drainage piece (16) is greater than the opening width of the hollow drainage head (15).

10. A method for preventing urine from overflowing, the anti-overflow structure according to claim 9, characterized in that: The steps include: A1, the end of the access tube (11) leaking out of the socket is connected to an extension tube, the end of the extension tube is inserted into the patient's urethra, the opening of the collection socket (12) is closed by the sampling tube (2), and the urine discharged from the patient's urethra enters the access tube (11) through the extension tube and flows from the access tube (11) into the bag body (1), thereby realizing urine collection; A2. When urine passes through the hollow drainage head (15), the urine flows as a fluid between the extension end and the opening of the hollow drainage head (15) and enters the bag body (1); A3, the arc-shaped toggle whiskers (17) are distributed in clusters, and their ends are capable of pushing the extended end of the drainage sheet (16) to fit on the other long side wall of the opening of the hollow drainage head (15), and temporarily closing the opening of the hollow drainage head (15) when no urine passes through the opening of the hollow drainage head (15), thereby cutting off the path for urine backflow; A4. At the same time, when urine refluxes, it will impact the extension end. Through the tilting and pressing of the arc-shaped toggle whiskers (17), the extension end, which is already curved, will bend further and fit more closely to the side wall of the opening of the hollow drainage head (15), thus disconnecting the reflux path and preventing urine from refluxing into the access tube (11).

Images