Dual anti-reflux urine collection device

Abstract

The utility model discloses a double anti-reflux urine collecting device, which comprises a measuring bottle, a urine collecting bag and a connector used for being connected with an indwelling catheter, one end of the measuring bottle is communicated with a drainage tube, the other end of the measuring bottle is connected with a connecting section capable of being communicated with the measuring bottle, and one end of the connecting section far away from the measuring bottle is communicated with the urine collecting bag. The end, communicated with the urine collecting bag, of the connecting section extends into the urine collecting bag and is provided with a backflow preventing film, the end, away from the measuring bottle, of the drainage tube is provided with a check valve device, and the drainage tube is connected with the connector through the check valve device. The indwelling catheter has the advantages that urine backflow and bacterial retrograde infection can be effectively prevented, and the infection risk in the indwelling catheterization process of a patient is reduced.

Description

Technical Field

[0001] The utility model relates to the field of medical devices, in particular to a double anti-reflux urine collection device. Background Art

[0002] Urine collection devices with measuring functions, such as drainage bags that can accurately measure drainage volume (publication number CN201727775U), digital capacity precision urine bags (publication number CN217162423U), etc., are often used for critically ill patients to manage the patient's body fluids by measuring urine volume. The urine collection device is connected to a urinary catheter to achieve drainage, measurement and collection of urine. However, most urine collection devices currently have problems such as urine reflux and urine drainage stagnation, which greatly affect the accuracy of the measurement. Urine drainage stagnation and reflux will also increase the risk of CAUTI (catheter-associated urinary tract infection).

[0003] In order to solve the above problems, in the urine measuring box with a check device disclosed in the Chinese utility model patent with application number 201220454009.6, a check valve is arranged at the liquid inlet and accommodated in the containing cavity, and urine flows in from the fluid inlet to drive the check valve to open the liquid inlet, and urine flows back from the containing cavity to drive the check valve to close the liquid inlet. However, this design can only prevent the urine in the measuring box from flowing back to the drainage tube, and the length of the drainage tube currently used to introduce urine into the urine collection device is generally long, and in clinical use, the drainage tube is often placed flat on the bedside, and the drainage of urine often depends on the pressure in the bladder. When the urine volume is small and the bladder pressure is small, urine is easily retained in the drainage tube. In this case, urine is also easy to flow back to the catheter or even to the human bladder, and bacteria in the urine are also more likely to migrate retrogradely, exacerbating CAUTI.

[0004] How to solve the above problems has become a technical problem that needs to be solved urgently. Utility Model Content

[0005] The utility model aims to provide a double anti-reflux urine collection device, which can effectively prevent urine reflux and bacterial retrograde infection through the double anti-reflux design, thereby reducing the risk of infection during indwelling catheterization of patients.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] The utility model provides a dual anti-reflux urine collection device, comprising a measuring bottle, a urine collecting bag, and a joint for connecting an indwelling urinary catheter, one end of the measuring bottle is connected to a drainage tube and the other end of the measuring bottle is connected to a connecting section that can be connected to the drainage tube, an end of the connecting section away from the measuring bottle is connected to the urine collecting bag, an end of the connecting section connected to the urine collecting bag extends into the urine collecting bag and is provided with an anti-reflux membrane, and a check valve device is provided at one end of the drainage tube away from the measuring bottle, and the drainage tube is connected to the joint through the check valve device.

[0008] Furthermore, the check valve device includes a front body and a rear body, and the front body and the rear body are spliced ​​and connected to form a hollow valve body, wherein the front body is connected to the joint and a front drainage port for urine to flow into the hollow valve body is formed at the connection between the two, and the rear body is connected to the drainage tube and a rear drainage port is formed at the connection between the two, and a check membrane that can undergo elastic deformation is arranged inside the hollow valve body, one side of the check membrane is fixedly connected to the hollow valve body and the other side of the check membrane is fitted with the inner wall of the front body to form a structure that can cover the front drainage port.

[0009] Furthermore, the front body is provided with a front body column, the rear body is provided with a rear body column hole, the anti-return membrane is provided with a membrane hole, the number of the front body columns, the rear body column holes and the membrane holes are equal, and the front body columns pass through the membrane holes and are plugged into the rear body column holes.

[0010] Furthermore, the anti-backflow membrane includes two soft membranes, the inner walls of the upper ends of the two membranes are respectively fixedly connected to the outer walls on both sides of the connecting section extending into the urine collecting bag, and the inner walls of the lower ends of the two membranes are fitted together, and the left and right edges of the two membranes are overlapped and connected to form a structure in which the middle part can be stretched open to form a channel when urine flows through.

[0011] Further, the measuring bottle includes a hollow bottle body, the bottom of the bottle body is connected to the connecting section and a bottle cavity is arranged inside the bottle body, the bottom of the bottle cavity is connected to the inside of the bottle body and an inner bottle is sleeved in the gap of the bottle cavity, the upper end of the inner bottle extends out of the bottle cavity and is fixedly connected to an inner bottle knob capable of covering the top of the inner bottle, the upper end of the inner bottle knob is connected to the drainage tube, and the outer wall of the inner bottle is sleeved with at least two sealing rings, one of which is located at the upper end of the inner bottle and the inner and outer side walls of the sealing ring are respectively tightly attached to the outer wall of the inner bottle and the inner wall of the bottle cavity to form an upper sealing structure, the other sealing ring is located at the lower end of the inner bottle and the inner and outer side walls of the sealing ring are respectively tightly attached to the outer wall of the inner bottle and the inner wall of the connecting section to form a lower sealing structure, and the side wall of the upper end of the inner bottle is provided with at least one overflow port, and the overflow port is located between the two sealing rings.

[0012] Furthermore, the outer wall of the inner bottle is provided with a protrusion, the inner wall of the bottle cavity is provided with a sliding groove, one end of the sliding groove is higher than the other end and the sliding groove is slidably matched with the protrusion.

[0013] Furthermore, the outer wall of the inner bottle is provided with grooves which are equal in number to the number of the sealing rings and surround the inner bottle, and the sealing ring is sleeved on the inner bottle through the grooves.

[0014] Furthermore, the bottle body is formed by welding a front cover, a rear cover, and two L-shaped ribs, the two L-shaped ribs divide the internal space of the bottle body into a closed main cavity and two approximate triangular areas, the connecting section and the bottle cavity are both connected to the closed main cavity, the two approximate triangular areas are symmetrically located on both sides of the closed main cavity and the two approximate triangular areas are not connected to the closed main cavity, and through holes are provided at positions on the rear cover corresponding to the two approximate triangular areas.

[0015] Furthermore, the lower edges of the front cover and the rear cover are both semi-elliptical curves, and both sides of the front cover are fixedly connected with hangers.

[0016] Furthermore, the surfaces of the inner bottle and the front cover are both provided with measuring scales.

[0017] Due to the adoption of the above structure, the utility model has the following beneficial effects:

[0018] The utility model provides an anti-reflux membrane at one end of the connecting section extending into the urine collecting bag, and a non-return valve device is provided between the drainage tube and the joint, wherein the anti-reflux membrane can prevent the urine in the urine collecting bag from flowing back and bacterial retrograde infection, and the non-return valve device can prevent the urine retained in the drainage tube from flowing back and bacterial retrograde infection, thus having a double anti-reflux effect, effectively preventing urine from flowing back and bacterial retrograde infection, and reducing the infection risk of patients during indwelling catheterization.

[0019] The present invention will become more clear through the following description in conjunction with the accompanying drawings, which are used to explain the embodiments of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 It is a structural exploded diagram of the utility model;

[0023] Figure 3 It is a structural schematic diagram of the front cover of the utility model;

[0024] Figure 4 It is a structural schematic diagram of the back cover of the utility model;

[0025] Figure 5 It is a structural exploded view of the check valve device of the utility model. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] Please refer to Figures 1 to 5The utility model provides a double anti-reflux urine collection device, comprising a measuring bottle 1, a urine collecting bag 2, and a joint 3 for connecting an indwelling urinary catheter, one end of the measuring bottle 1 is connected to a drainage tube 4 and the other end of the measuring bottle 1 is connected to a connecting section 5 that can be connected thereto, the end of the connecting section 5 away from the measuring bottle 1 is connected to the urine collecting bag 2, the end of the connecting section 5 connected to the urine collecting bag 2 extends into the urine collecting bag 2 and the end is provided with an anti-reflux membrane 6, and the end of the drainage tube 4 away from the measuring bottle 1 is provided with a check valve device 7, and the drainage tube 4 is connected to the joint 3 through the check valve device 7. When in use, the indwelling urinary catheter on the patient is connected through the connector 3, and urine can enter the measuring bottle 1 through the connector 3, the check valve device 7, and the drainage tube 4 in sequence, so that the urine volume per unit time can be accurately measured, and the patient's body fluid management can be achieved by measuring the urine volume. After the measurement, the measuring bottle 1 is connected to the connecting section 5, and the urine in the measuring bottle 1 can enter the urine collecting bag 2 through the connecting section 5, and the measuring bottle 1 can be used again to measure the urine volume; in addition, the utility model provides an anti-reflux membrane 6 at one end of the connecting section 5 connected to the urine collecting bag 2, which is used to prevent the urine in the urine collecting bag 2 from flowing back into the measuring bottle 1, which can reduce the urine from passing through the measuring bottle 1 in sequence. The bottle 1, the drainage tube 4, the connector 3, and the indwelling urinary catheter may flow back into the patient's urethra, causing the possibility of bacterial retrograde infection. At the same time, the end of the drainage tube 4 away from the measuring bottle 1 is connected to the connector 3 through a check valve device 7. The check valve device 7 can form a barrier here to prevent the urine retained in the drainage tube 4 from flowing back into the patient's urethra through the connector 3 and the indwelling urinary catheter in turn, thereby blocking bacterial retrograde infection again. The design of the anti-reflux membrane 6 and the check valve device 7 achieves a double anti-reflux effect, effectively preventing urine reflux and bacterial retrograde infection, reducing the risk of infection during the patient's indwelling catheterization, and also reducing the secondary medical expenses caused by the infection.

[0028] In the present invention, the check valve device 7 comprises a front body 71 and a rear body 72, wherein the front body 71 and the rear body 72 are spliced ​​and connected to form a hollow valve body, wherein the front body 71 is connected to the joint 3 and the connection between the two forms a front drainage port 73 for urine to flow into the hollow valve body, the rear body 72 is connected to the drainage tube 4 and the connection between the two forms a rear drainage port 74, and the hollow valve body is provided with a check film 75 capable of elastic deformation, one side of the check film 75 is fixedly connected to the hollow valve body and the other side of the check film 75 is attached to the inner wall of the front body 71 to form a structure capable of covering the front drainage port 73. The check film 75 is made of a soft and elastic polymer material, including but not limited to silicone, elastic polyurethane, thermoplastic elastomer material, etc. In a natural state, the check film 75 is completely attached to the front body 71, and only a small force is required to make the check film 75 slightly leave the front body 71, thereby forming a drainage channel. The front body 71 and the rear body 72 are assembled by welding. More specifically, the front drainage port 73 is connected to the joint 3, and the rear drainage port 74 is connected to the drainage tube 4, and finally forms an integral body; when the urine enters the hollow valve body through the joint 3, the flowing urine drives the check film 75 to cover one side of the front drainage port 73 and bend and open to form a channel for urine to flow into the hollow valve body; since the circular area of ​​the check film 75 is smaller than the area of ​​the rear body 72 near the end of the front body 71 and the curvature of the check film 75 during the bending process is greater than the area of ​​the rear body 72 near the end of the front body 71, the curvature of the check film 75 during the bending process is greater than the curvature of the rear body 72 near the end of the front body 71. Due to the curvature of one end of the front body 71, urine can smoothly flow into the hollow valve body and pass through the rear drainage port 74, and then enter the drainage tube 4 to complete the subsequent drainage work; when urine flows back into the hollow valve body through the drainage tube 4 and the rear drainage port 74, since the check membrane 75 is located in front of the front drainage port 73, coupled with the pressure of urine, the check membrane 75 can be driven to cover the front drainage port 73 and fit tightly against the inner wall of the front body 71, so that the front drainage port 73 is closed, preventing urine from flowing into the connector 3, thereby achieving effective backflow prevention.

[0029] In the present utility model, the front body 71 is provided with a front body column 711, the rear body 72 is provided with a rear body column hole 721, the non-return membrane 75 is provided with a membrane hole 751, the number of the front body column 711, the rear body column hole 721, and the membrane hole 751 are equal, and the front body column 711 passes through the membrane hole 751 and is plugged into the rear body column hole 721. The side of the non-return membrane 75 away from the front drainage port 73 can be clamped and fixed in the hollow valve body, so that the non-return membrane 75 is fixed on one side and the side of the non-return membrane 75 away from the membrane hole 751 can achieve an opening and closing effect.

[0030] In the present invention, the anti-backflow membrane 6 includes two soft membranes, the inner walls of the upper ends of the two membranes are respectively fixedly connected to the outer walls of both sides of the connecting section 5 extending into the urine collecting bag 2, and the inner walls of the lower ends of the two membranes are fitted, and the left and right edges of the two membranes overlap and connect to form a structure in which the middle part can be stretched open to form a channel when urine flows through. When the urine in the measuring bottle 1 flows into the urine collecting bag 2 through the connecting section 5, the liquid flow breaks the light anti-backflow membrane 6, and the urine enters the urine collecting bag 2; when no urine flows in, the inner walls of the lower ends of the two membranes are naturally fitted, and the anti-backflow membrane 6 is in a closed state to prevent the urine in the urine collecting bag 2 from flowing back into the measuring bottle 1.

[0031] In the utility model, the measuring bottle 1 comprises a hollow bottle body 11, the bottom of the bottle body 11 is connected to the connecting section 5, and a bottle cavity 12 is arranged inside the bottle body 11, the bottom of the bottle cavity 12 is connected to the inside of the bottle body 11, and an inner bottle 13 is sleeved in the gap of the bottle cavity 12, the upper end of the inner bottle 13 extends out of the bottle cavity 12 and is fixedly connected to an inner bottle knob 14 that can cover the top of the inner bottle 13, and the inner bottle 13 and the inner bottle knob 14 are formed into one by welding; the upper end of the inner bottle knob 14 is connected to the drainage tube 4, and the outer wall of the inner bottle 13 is sleeved with at least Two sealing rings 15, one of which is located at the upper end of the inner bottle 13 and the inner and outer side walls of the sealing ring 15 are respectively tightly attached to the outer wall of the inner bottle 13 and the inner wall of the bottle cavity 12 to form an upper sealing structure, and the other sealing ring 15 is located at the lower end of the inner bottle 13 and the inner and outer side walls of the sealing ring 15 are respectively tightly attached to the outer wall of the inner bottle 13 and the inner wall of the connecting section 5 to form a lower sealing structure, and at least one overflow port 16 is opened on the side wall of the upper end of the inner bottle 13, and the overflow port 16 is located between the two sealing rings 15, and the part of the liquid exceeding the capacity of the inner bottle 13 flows out from the overflow port 16 into the bottle body 11. In the present utility model, the bottle body 11, the bottle cavity 12 and the inner bottle 13 are all made of transparent materials; the number of the sealing rings 15 is three, and the sizes of the three sealing rings 15 are all different, among which the largest sealing ring 15 is located at the upper end of the inner bottle 13 and its inner and outer side walls are respectively in close contact with the outer wall of the inner bottle 13 and the inner wall of the bottle cavity 12, which, on the one hand, has the effect of upper sealing, and on the other hand, can effectively fix the position of the inner bottle 13 to prevent the inner bottle 13 from unplanned separation from the bottle cavity 12, and the other two sealing rings 15 are both located at the lower end of the inner bottle 13 and the inner and outer side walls of the two sealing rings 15 are respectively in close contact with the outer wall of the inner bottle 13 and the inner wall of the connecting section 5, which has the effect of lower sealing to prevent the urine in the bottle body 11 from unplanned entry into the urine collecting bag 2.

[0032] In the present invention, the outer wall of the inner bottle 13 is provided with a protrusion 131, and the inner wall of the bottle cavity 12 is provided with a sliding groove 121, one end of the sliding groove 121 is higher than the other end and the sliding groove 121 is slidably matched with the protrusion 131. By horizontally rotating the inner bottle knob 14, the protrusion 131 can be driven by the inner bottle 13 to slide along the sliding groove 121 from the lower position to the upper position, and the inner bottle 13 is lifted, so that the lower end of the inner bottle 13 is dislocated and separated from the connecting section 5, and the outer side wall of the sealing ring 15 at the lower end of the inner bottle 13 is no longer tightly attached to the inner wall of the connecting section 5, and the lower sealing structure is destroyed, and the liquid in the bottle body 11 can flow into the urine collecting bag 2 through the connecting section 5.

[0033] In the utility model, the outer wall of the inner bottle 13 is provided with grooves which are equal in number to the number of the sealing rings 15 and surround the inner bottle 13. The sealing ring 15 is sleeved on the inner bottle 13 through the grooves, which can effectively fix the position of the sealing ring 15 on the inner bottle 13 and prevent the sealing ring 15 from unplanned displacement.

[0034] In the utility model, the bottle body 11 is formed by welding a front cover 111, a rear cover 112, and two L-shaped ribs 113. The two L-shaped ribs 113 separate the internal space of the bottle body 11 into a closed main cavity 114 and two approximate triangular areas 115. The connecting section 5 and the bottle cavity 12 are both connected to the closed main cavity 114. The two approximate triangular areas 115 are symmetrically located on both sides of the closed main cavity 114 and the two approximate triangular areas 115 are not connected to the closed main cavity 114. In addition, through holes 116 are provided at positions on the rear cover 112 corresponding to the two approximate triangular areas 115, so as to facilitate the detection of the airtightness of the bottle body 11.

[0035] In the present invention, the lower edges of the front cover 111 and the rear cover 112 are both semi-elliptical curves, which can make the overall strength of the bottle body formed by the front cover 111 and the rear cover 112 better, and both sides of the front cover 111 are fixedly connected with a hanger 8, so as to facilitate the hanging of the measuring bottle 1.

[0036] In the present invention, the surfaces of the inner bottle 13 and the front cover 111 are both provided with measuring scales (not shown). Specifically, the measuring scale on the inner bottle 13 is located on the front of the inner bottle 13, and its scale range is 0-40mL, and its precision is 1m; the measuring scale on the front cover 111 is located between two approximate triangular areas 115, and there are two of them, one of which is located below the two approximate triangular areas 115, and its scale range is 40-100mL, and its precision is 5mL, and the other is located above the two approximate triangular areas 115, and its scale range is 100-500mL, and its precision is 10mL.

[0037] When the utility model is used, the indwelling urinary catheter on the patient is first connected through the joint 3, and the urine can flow into the inner bottle 13 through the joint 3, the check valve device 7, the drainage tube 4, and the inner bottle knob 14 in sequence. By observing the scale on the inner bottle 13, the purpose of accurately measuring the urine volume in a short period of time can be achieved; when the liquid level of the urine in the inner bottle 13 is higher than the height of the overflow port 16, the urine overflows into the closed main cavity 114 through the overflow port 16 and the gap between the inner bottle 13 and the bottle cavity 12 in sequence. At this time, the purpose of measuring the urine volume in a long period of time can be achieved by observing the scale on the inner bottle 13; when the urine in the entire measuring bottle 1 reaches the maximum capacity, the inner bottle knob 14 can be rotated to drain urine through the inner bottle 13 The protrusion 131 is driven to slide along the sliding groove 121 from the lower position to the upper position, and the inner bottle 13 is lifted, so that the lower end of the inner bottle 13 is dislocated and separated from the connecting section 5, and the outer side wall of the sealing ring 15 located at the lower end of the inner bottle 13 is no longer tightly attached to the inner wall of the connecting section 5, and the lower sealing structure is destroyed, and the liquid in the bottle body 11 flows into the urine collecting bag 2 through the connecting section 5; when urine reflux occurs, the inner walls of the lower ends of the two diaphragms of the anti-reflux membrane 6 naturally fit together, so that the anti-reflux membrane 6 remains in a closed state, preventing the urine in the urine collecting bag 2 from flowing back into the measuring bottle 1, and the non-return membrane 75 covers the front drainage port 73 and is tightly attached to the inner wall of the front body 71, and the non-return valve device 7 remains in a closed state, preventing urine from flowing back into the connector 3. Therefore, the utility model has a dual anti-reflux effect, effectively preventing urine reflux and bacterial retrograde infection, and reducing the risk of infection during the patient's indwelling catheterization process.

[0038] The above describes the preferred embodiments of the utility model. It should be understood that the utility model is not limited to the above-mentioned specific implementation methods, and the devices and structures that are not described in detail should be understood to be implemented in a common manner in the art; any technician familiar with the art can use the above-disclosed methods and technical contents to make many possible changes and modifications to the technical solutions of the utility model without departing from the scope of the technical solution of the utility model, or modify them into equivalent embodiments of equivalent changes, which does not affect the essential content of the utility model. Therefore, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the utility model without departing from the content of the technical solution of the utility model still falls within the scope of protection of the technical solution of the utility model.

Claims

1. A dual anti-reflux urine collection device, comprising a measuring bottle (1), a urine collection bag (2), and a connector (3) for connecting an indwelling urinary catheter, characterized in that: One end of the measuring bottle (1) is connected to a drainage tube (4) and the other end of the measuring bottle (1) is connected to a connecting section (5) that can be connected thereto; the end of the connecting section (5) away from the measuring bottle (1) is connected to a urine collecting bag (2); the end of the connecting section (5) connected to the urine collecting bag (2) extends into the urine collecting bag (2) and is provided with an anti-backflow membrane (6); and the end of the drainage tube (4) away from the measuring bottle (1) is provided with a check valve device (7); the drainage tube (4) is connected to the joint (3) via the check valve device (7).

2. A dual anti-reflux urine collection device according to claim 1, characterized in that: The check valve device (7) comprises a front body (71) and a rear body (72), wherein the front body (71) and the rear body (72) are spliced ​​and connected to form a hollow valve body, wherein the front body (71) is connected to the joint (3) and a front drainage port (73) is formed at the connection between the two for urine to flow into the hollow valve body, the rear body (72) is connected to the drainage tube (4) and a rear drainage port (74) is formed at the connection between the two, and a check membrane (75) capable of elastic deformation is arranged inside the hollow valve body, one side of the check membrane (75) is fixedly connected to the hollow valve body and the other side of the check membrane (75) is fitted with the inner wall of the front body (71) to form a structure capable of covering the front drainage port (73).

3. A dual anti-reflux urine collection device according to claim 2, characterized in that: The front body (71) is provided with a front body column (711), the rear body (72) is provided with a rear body column hole (721), the anti-return membrane (75) is provided with a membrane hole (751), the number of the front body column (711), the rear body column hole (721) and the membrane hole (751) are all equal, and the front body column (711) passes through the membrane hole (751) and is plugged into the rear body column hole (721).

4. A dual anti-reflux urine collection device according to any one of claims 1 to 3, characterized in that: The anti-backflow membrane (6) comprises two soft membranes, the inner walls of the upper ends of the two membranes are respectively fixedly connected to the outer walls of both sides of the connecting section (5) extending into the urine collecting bag (2), and the inner walls of the lower ends of the two membranes are in contact with each other, and the left and right edges of the two membranes are overlapped and connected to form a structure in which the middle part can be stretched to form a channel when urine flows through.

5. A dual anti-reflux urine collection device according to any one of claims 1 to 3, characterized in that: The measuring bottle (1) comprises a hollow bottle body (11), the bottom of the bottle body (11) is connected to the connecting section (5), and a bottle cavity (12) is arranged inside the bottle body (11), the bottom of the bottle cavity (12) is connected to the inside of the bottle body (11), and an inner bottle (13) is sleeved in the gap inside the bottle cavity (12), the upper end of the inner bottle (13) extends out of the bottle cavity (12) and is fixedly connected to an inner bottle knob (14) capable of covering the top of the inner bottle (13), the upper end of the inner bottle knob (14) is connected to the drainage tube (4), and the outer wall of the inner bottle (13) is sleeved with at least Two sealing rings (15), one of which is located at the upper end of the inner bottle (13) and the inner and outer side walls of the sealing ring (15) are respectively in close contact with the outer wall of the inner bottle (13) and the inner wall of the bottle cavity (12) to form an upper sealing structure, and the other sealing ring (15) is located at the lower end of the inner bottle (13) and the inner and outer side walls of the sealing ring (15) are respectively in close contact with the outer wall of the inner bottle (13) and the inner wall of the connecting section (5) to form a lower sealing structure, and at least one overflow port (16) is provided on the side wall of the upper end of the inner bottle (13), and the overflow port (16) is located between the two sealing rings (15).

6. A dual anti-reflux urine collection device according to claim 5, characterized in that: The outer wall of the inner bottle (13) is provided with a protrusion (131), and the inner wall of the bottle cavity (12) is provided with a sliding groove (121), one end of the sliding groove (121) is higher than the other end, and the sliding groove (121) is slidably matched with the protrusion (131).

7. A dual anti-reflux urine collection device according to claim 5, characterized in that: The outer wall of the inner bottle (13) is provided with grooves which are equal in number to the number of the sealing rings (15) and surround the inner bottle (13); the sealing ring (15) is sleeved on the inner bottle (13) through the grooves.

8. The dual anti-reflux urine collection device according to claim 5, characterized in that: The bottle body (11) is formed by welding a front cover (111), a rear cover (112), and two L-shaped ribs (113); the two L-shaped ribs (113) divide the internal space of the bottle body (111) into a closed main cavity (114) and two approximately triangular areas (115); the connecting section (5) and the bottle cavity (12) are both connected to the closed main cavity (114); the two approximately triangular areas (115) are symmetrically located on both sides of the closed main cavity (114) and are not connected to the closed main cavity (114); and through holes (116) are provided at positions on the rear cover (112) corresponding to the two approximately triangular areas (115).

9. A dual anti-reflux urine collection device according to claim 8, characterized in that: The lower edges of the front cover (111) and the rear cover (112) are both semi-elliptical curves, and both sides of the front cover (111) are fixedly connected to a hanger (8).

10. A dual anti-reflux urine collection device according to claim 8 or 9, characterized in that: The surfaces of the inner bottle (13) and the front cover (111) are both provided with measuring scales.

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