Urine collecting device for reducing urine stagnation

Abstract

The utility model discloses a urine collecting device used for reducing urine stagnation, 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 double-cavity drainage tube, and the other end of the measuring bottle is connected with a connecting section capable of being communicated with the measuring bottle. The end, away from the measuring bottle, of the connecting section is detachably connected with the urine collecting bag in a communicated mode, a check valve is arranged at the end, away from the measuring bottle, of the double-cavity drainage tube, and the double-cavity drainage tube is connected with the connector through the check valve. The utility model has the advantages that the infection risk is reduced, the measurement accuracy is improved, and the nursing cost is reduced.

Description

Technical Field

[0001] The utility model relates to the field of medical instruments, in particular to a urine collecting device for reducing urine stagnation. Background Art

[0002] Urine collection devices with measurement functions 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 urine drainage, measurement and collection. 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] To solve the above problems, a Chinese utility model patent with publication number CN206381429U discloses an anti-backflow urine collection bag, which is used to prevent urine in the bag from backflowing into the catheter by setting an anti-backflow component at the connection between the catheter and the bag body, and has good anti-backflow ability. However, the length of the drainage tube currently used to introduce urine into the urine collection device is generally long and single-chamber structure, 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, which greatly increases the risk of urine backflow and catheter-related urinary tract infection, and reduces the accuracy of measurement. In addition, in clinical practice, when medical staff measure urine volume, they often need to clamp the catheter first to prevent continuous urine output and affect the accuracy of the test. Since the flow of urine follows the principles of fluid dynamics, any operation that changes its flow path, such as clamping, will increase the resistance of the fluid. When the pressure in the patient's bladder is low, the urine retained in the drainage tube before clamping will not be able to drain into the urine bag collection device normally due to negative pressure, resulting in drainage stagnation, which increases the risk of backflow and affects the accuracy of the measurement. When the above situation occurs, clinical medical staff will try to lift the drainage tube, starting from the end of the drainage tube close to the catheter, and continuously squeeze the drainage tube toward the urine collection device. This method increases the cost of care, and the squeezing action also brings unknown risks.

[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 urine collection device for reducing urine stagnation, which can reduce infection risk, improve measurement accuracy and reduce nursing costs.

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

[0007] The utility model provides a urine collection device for reducing urine stagnation, 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 double-lumen drainage tube and the other end of the measuring bottle is connected to a connecting section that can be connected thereto, an end of the connecting section away from the measuring bottle is detachably connected to the urine collecting bag, and a check valve is provided at one end of the double-lumen drainage tube away from the measuring bottle, and the double-lumen drainage tube is connected to the joint via the check valve.

[0008] Furthermore, the double-lumen drainage tube includes a tube body, the tube body is divided into a double-lumen structure by a partition extending along its length direction, and reinforcing ribs are provided on the tube body and / or the partition, and the inner wall of the tube body is provided with vertical lines.

[0009] Furthermore, the connecting section includes an upper connecting piece, the upper end of which is connected to the bottom of the measuring bottle and a connecting tube is fixedly sleeved on the outer side of the lower end of the upper connecting piece, the bottom of the connecting tube is open and a lower connecting piece is slidably sleeved between the connecting tube and the upper connecting piece, the lower connecting piece is connected to the urine collecting bag, and inverted L-shaped notches are symmetrically arranged on both sides of the lower end of the connecting tube, and columns are symmetrically arranged on both sides of the upper end of the lower connecting piece, and the columns are slidably matched with the notches to form a detachable structure.

[0010] 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 double-cavity 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.

[0011] 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.

[0012] 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.

[0013] 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.

[0014] 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.

[0015] Furthermore, the surfaces of the inner bottle and the front cover are both provided with measuring scales.

[0016] Furthermore, one end of the lower connecting piece communicating with the urine collecting bag extends into the urine collecting bag and is provided with an anti-backflow valve.

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

[0018] The utility model can effectively prevent the urine retained in the double-lumen drainage tube from flowing back and bacterial retrograde infection by arranging a check valve between the double-lumen drainage tube and the joint, has an anti-backflow effect, and can reduce the risk of infection during the patient's indwelling catheterization process; in addition, according to the fluid mechanics-fluid continuity mass conservation equation, in a closed pipeline system, the cross-sectional area and flow rate of the catheter are negatively correlated. Therefore, without sacrificing the total drainage cross-section of the drainage tube, the utility model uses a double-lumen drainage tube to replace the traditional single-lumen drainage tube, which can reduce the diameter cross-section of the tube on one side and improve the single-side The double-lumen drainage tube provides two independent drainage channels, which can significantly increase the amount of fluid drained at the same time compared to the single-lumen drainage tube, thereby improving the overall drainage efficiency. When the indwelling urinary catheter on the patient is clamped, the two lumens of the double-lumen drainage tube can balance the drainage pressure, effectively avoiding poor drainage caused by uneven pressure inside the single-lumen drainage tube. The two lumens can share pressure, allowing the liquid to pass through the tube more evenly, thereby avoiding urine obstruction, thereby reducing the possibility of urine reflux, improving measurement accuracy, and reducing nursing costs.

[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 connecting section of the utility model;

[0026] Figure 6 It is a structural schematic diagram of the double-lumen drainage tube of the utility model. DETAILED DESCRIPTION

[0027] 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.

[0028] Please refer to Figures 1 to 6The utility model provides a urine collection device for reducing urine stagnation, comprising a measuring bottle 1, a urine collecting bag 2, and a connector 3 for connecting an indwelling urinary catheter, one end of the measuring bottle 1 is connected to a double-lumen 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 detachably connected to the urine collecting bag 2, and a check valve 7 is provided at the end of the double-lumen drainage tube 4 away from the measuring bottle 1, and the check valve 7 is a one-way valve that limits urine to flow only from the connector 3 to the double-lumen drainage tube 4; the double-lumen drainage tube 4 is connected to the connector 3 through the check valve 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 7, and the double-lumen 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, and after the measurement is completed, 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; and, in the utility model, the end of the double-lumen drainage tube 4 away from the measuring bottle 1 is connected to the connector 3 through the check valve 7, and the check valve 7 can form a barrier here, which is used to prevent the urine retained in the double-lumen drainage tube 4 from flowing back into the patient's urethra through the connector 3 and the indwelling urinary catheter in sequence, effectively blocking bacterial retrograde infection, reducing the risk of infection during the patient's indwelling catheterization, and also reducing the secondary medical expenses caused by infection; in addition, according to the fluid mechanics-fluid continuity mass conservation equation, in a closed pipe system In the system, the cross-sectional area of ​​the catheter and the flow rate are negatively correlated. Therefore, without sacrificing the total drainage cross-sectional area of ​​the pipeline, the utility model uses a double-lumen drainage tube 4 to replace the traditional single-lumen drainage tube, which can reduce the diameter cross-sectional area of ​​the tube on one side and increase the fluid rate on one side. In addition, the double-lumen drainage tube 4 provides two independent drainage channels. Compared with the single-lumen drainage tube, the amount of liquid drained at the same time can be significantly increased, thereby improving the overall drainage efficiency. When the indwelling urinary catheter on the patient is clamped, the two cavities of the double-lumen drainage tube 4 can balance the drainage pressure, effectively avoiding poor drainage caused by uneven pressure inside the single-lumen drainage tube. The two cavities can share pressure, allowing the liquid to pass through the pipeline more evenly. In addition, when necessary, the double-lumen drainage tube 4 is slightly lifted, and the liquid level difference in the two cavities also offsets a part of the fluid resistance, thereby effectively avoiding urine drainage stagnation, thereby further reducing the possibility of urine backflow, improving measurement accuracy, and reducing nursing costs.

[0029] In the utility model, the double-lumen drainage tube 4 includes a tube body 41, and the tube body 41 is divided into a double-lumen structure by a partition 42 extending along the length direction thereof, and reinforcing ribs 43 are provided on the tube body 41 and / or the partition 42, which can significantly improve the pressure resistance and deformation resistance of the double-lumen drainage tube 4, and effectively avoid the problems of poor drainage and stagnation of urine drainage caused by the folding of the double-lumen drainage tube 4; and, the inner wall of the tube body 41 is provided with vertical lines (not shown), and the length direction of the vertical lines is consistent with the length direction of the tube body 41, which is used to increase the guidance of urine in drainage, and can improve the flow characteristics of the liquid in the tube, reduce the generation of turbulence and eddy currents, and make the liquid flow more stable. At the same time, the vertical lines can reduce the fluid resistance, thereby increasing the drainage rate, and further avoiding the stagnation of urine in the tube body 41.

[0030] In the utility model, the connecting section 5 includes an upper connecting member 51, the upper end of the upper connecting member 51 is connected to the bottom of the measuring bottle 1 and a connecting tube 52 is fixedly sleeved on the outer side of the lower end of the upper connecting member 51, the bottom of the connecting tube 52 is open and a lower connecting member 53 is slidably sleeved between the connecting tube 52 and the upper connecting member 51, the lower connecting member 53 is connected to the urine collecting bag 2, and inverted L-shaped notches 54 are symmetrically arranged on both sides of the lower end of the connecting tube 52, the two notches 54 are centrally symmetrical and the lower ends of the notches 54 are open; columns 55 are symmetrically arranged on both sides of the upper end of the lower connecting member 53, and the columns 55 and the notches 54 are slidably matched to form a detachable structure. The upper connecting piece 51 is a stepped cylindrical structure made of semi-rigid plastic material with a larger upper part and a smaller lower part, and the lower connecting piece 53 is a cylindrical structure made of semi-rigid plastic material; when the urine in the urine collecting bag 2 needs to be emptied, the lower connecting piece 53 is rotated horizontally to drive the column 55 to slide horizontally along the notch 54 until the column 55 moves to the side close to the opening of the notch 54, and then the lower connecting piece 53 is pulled down to make the column 55 slide out of the notch 54 from the opening of the notch 54, so that the upper connecting piece 51 is separated from the lower connecting piece 53, and the urine collecting bag 2 is separated from the measuring bottle 1, so that the urine collecting bag 2 can be taken away quickly and conveniently to dump the urine therein.

[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 double-cavity drainage tube 4, and the outer wall of the inner bottle 13 is sleeved to At least two sealing rings 15 are provided, 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, 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] In the present invention, one end of the lower connecting piece 53 connected to the urine collecting bag 2 extends into the urine collecting bag 2 and is provided with an anti-reflux valve 6. The anti-reflux valve 6 is a structure similar to a duckbill valve, which can effectively prevent the urine in the urine collecting bag 2 from flowing back into the measuring bottle 1 through the lower connecting piece 53 and the upper connecting piece 51 in sequence.

[0038] When the utility model is used, the indwelling urinary catheter on the patient is first connected through the connector 3, and the urine can flow into the inner bottle 13 through the connector 3, the check valve 7, the double-lumen 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 drive the protrusion 131 to slide along the sliding groove 121 from the lower part through the inner bottle 13 When it reaches its highest point, the inner bottle 13 is lifted up, so that the lower end of the inner bottle 13 is misaligned 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 close to the inner wall of the connecting section 5. 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 drainage stagnation occurs, it is only necessary to slightly lift the double-lumen drainage tube 4. The liquid level difference in the two cavities of the double-lumen drainage tube 4 can offset part of the fluid resistance. There is no need to continuously squeeze the double-lumen drainage tube 4 toward the direction of the measuring bottle 1. The urine in the double-lumen drainage tube 4 can flow into the measuring bottle 1 under the action of gravity and the guidance of the vertical lines, thereby effectively avoiding urine drainage stagnation, and further reducing the possibility of urine backflow, improving the accuracy of measurement, and reducing nursing costs.

[0039] 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 urine collection device for reducing urine stagnation, 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 double-lumen 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 detachably connected to a urine collection bag (2); and a check valve (7) is provided at the end of the double-lumen drainage tube (4) away from the measuring bottle (1); the double-lumen drainage tube (4) is connected to the joint (3) via the check valve (7).

2. A urine collection device for reducing urine stagnation according to claim 1, characterized in that: The double-lumen drainage tube (4) comprises a tube body (41), wherein the tube body (41) is divided into a double-lumen structure by a partition (42) extending along the length direction thereof, and reinforcing ribs (43) are arranged on the tube body (41) and / or the partition (42), and the inner wall of the tube body (41) is provided with vertical lines.

3. A urine collection device for reducing urine stagnation according to claim 1 or 2, characterized in that: The connecting section (5) comprises an upper connecting member (51), the upper end of which is connected to the bottom of the measuring bottle (1) and a connecting tube (52) is fixedly sleeved on the outer side of the lower end of the upper connecting member (51), the bottom of the connecting tube (52) is open and a lower connecting member (53) is slidably sleeved between the connecting tube (52) and the upper connecting member (51), the lower connecting member (53) is connected to the urine collecting bag (2), and inverted L-shaped notches (54) are symmetrically arranged on both sides of the lower end of the connecting tube (52), and columns (55) are symmetrically arranged on both sides of the upper end of the lower connecting member (53), and the columns (55) and the notches (54) are slidably matched to form a detachable structure.

4. A urine collection device for reducing urine stagnation according to claim 1 or 2, 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 double-cavity drainage tube (4), and the outer wall of the inner bottle (13) is sleeved with a 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 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).

5. A urine collection device for reducing urine stagnation according to claim 4, 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).

6. A urine collection device for reducing urine stagnation according to claim 4, 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.

7. A urine collection device for reducing urine stagnation according to claim 4, 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).

8. A urine collection device for reducing urine stagnation according to claim 7, 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 with a hanger (8).

9. A urine collection device for reducing urine stagnation according to claim 7 or 8, characterized in that: The surfaces of the inner bottle (13) and the front cover (111) are both provided with measuring scales.

10. A urine collection device for reducing urine stagnation according to claim 3, characterized in that: One end of the lower connecting piece (53) that is in communication with the urine collecting bag (2) extends into the urine collecting bag (2) and is provided with an anti-reflux valve (6).

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