Precision urine measuring instrument

Abstract

This utility model discloses a precision urine measuring device, including a transparent measuring box. The measuring box has a receiving chamber, an overflow chamber, and a discharge chamber. An overflow port is provided between the receiving chamber and the overflow chamber. The overflow port is stepped, wider at the top and narrower at the bottom, and located near the front wall. The discharge chamber has an inlet and an outlet. The receiving chamber has a receiving port and a first discharge port. The overflow chamber has a second discharge port. A rotary control switch is provided at the inlet. The control switch has a first channel and a second channel, allowing the inlet to connect to the first and second discharge ports respectively, so as to empty the receiving chamber and the overflow chamber independently. The control switch has three working positions to realize the working states of urine collection and independent emptying of the two chambers. This utility model improves the accuracy of urine output measurement, allows independent discharge of each chamber, is flexible in operation, and makes urine bag replacement convenient and secure through clamping claws and locking rings.

Description

Technical Field

[0001] This utility model relates to the field of medical auxiliary device technology, and more specifically to a precision urine measuring device. Background Technology

[0002] For critically ill patients, it is necessary to collect, measure, and sample their urine after surgery.

[0003] Currently, urine measurement kits are used clinically. These kits have a dropper chamber and a measuring chamber. Urine flows from the catheter into the dropper chamber by gravity and then into the measuring chamber. Nurses record the patient's urine output at regular intervals by reading the measurement chamber on the kit. When the urine measurement kit is full, it is emptied into a urine bag, which is then emptied by nurses and replaced with a new bag.

[0004] A small portion of the collected urine remains in the dropper chamber, while the majority remains in the measuring chamber, leading to inaccurate urine volume measurements. Existing urine measuring cartridges only have a drain outlet at the bottom of the measuring chamber, resulting in incomplete emptying of the cartridge each time and affecting subsequent measurements. To completely empty the cartridge for accurate measurements, the cartridge needs to be tilted to allow all urine from the dropper chamber to enter the measuring chamber for reading, or the urine needs to be drained into another measuring instrument, which is cumbersome.

[0005] In daily care, nurses need to change the urine bag frequently, which is a rather cumbersome procedure. There is a risk of urine leakage at the interface between the urine bag and the urine measurement box. Furthermore, during the procedure, the urine measurement box may be suspended or laid flat. When the urine measurement box is laid flat, the urine from the two chambers may mix.

[0006] In addition, in clinical practice, there is an unavoidable risk that the tubing connected to the urine measurement box may be squeezed, and the ease of connecting the tubing to the urinary catheter also needs to be further improved. Summary of the Invention

[0007] To address the aforementioned issues, this invention provides a precision urine measuring device that improves the accuracy of urine output measurement. Each chamber can discharge independently, offering flexible operation, high reliability, convenient urine bag replacement, and a secure connection.

[0008] According to one aspect of the present invention, a precision urine measuring device is provided, comprising a transparent measuring box having a receiving cavity and an overflow cavity side by side, both the receiving cavity and the overflow cavity having scale markings, an overflow port communicating with the overflow cavity being provided above the receiving cavity, the measuring box also having a discharge cavity having an inlet and an outlet, the receiving cavity having a receiving port at the top and a first discharge port at the bottom, the overflow cavity having a second discharge port, and a control switch being provided at the inlet, the control switch having a first channel and a second channel to connect the inlet to the first discharge port and the second discharge port respectively to individually empty the receiving cavity and the overflow cavity. Thus, urine enters the receiving chamber through the inlet for collection, and flows into the overflow chamber through the overflow outlet. The urine output can be determined by reading the scale markings on the receiving and overflow chambers. During urine collection, the first and second drain outlets are blocked by a control switch. When the two ends of the first channel are connected to the first drain outlet of the receiving chamber and the inlet of the discharge chamber, respectively, urine in the receiving chamber flows into the discharge chamber through the first channel and is discharged into the urine bag through the outlet. At this time, the second channel is closed. When the two ends of the second channel are connected to the second drain outlet of the overflow chamber and the inlet of the discharge chamber, respectively, urine in the overflow chamber flows into the discharge chamber through the second channel and is discharged into the urine bag through the outlet. At this time, the first channel is closed. This precise urine measurement allows urine in the receiving and overflow chambers to be discharged separately, providing flexible discharge operations. Since urine in both the receiving and overflow chambers is discharged from the outlet of the discharge chamber, a single urine bag is still used for urine collection, which does not increase the workload of nursing staff.

[0009] In some embodiments, the control switch is a rotary switch with three operating positions: a first position, a second position, and a third position. The main body of the control switch is a cylindrical structure embedded in the measuring box. The outer periphery of the control switch has a first inlet and a first outlet of a first channel, and a second inlet and a second outlet of a second channel. When the control switch is in the first position, the first and second drain outlets are blocked; when the control switch is in the second position, the first channel is open; and when the control switch is in the third position, the second channel is open. Thus, the three operating positions on the control switch correspond to the collection state, the separate discharge state of the receiving chamber, and the separate discharge state of the overflow chamber, respectively. This control switch is manually operated by rotating it, and switching between the three states is easy and convenient for nursing staff.

[0010] In some embodiments, the control switch includes an embedded housing, a sealing ring, a first embedded body, and a second embedded body. A first channel and a second channel are respectively disposed on the first and second embedded bodies. One end of the embedded housing is a knob, and the first and second embedded bodies are arranged front-to-back at the other end of the embedded housing. The sealing ring covers the first and second embedded bodies, and a first inlet, a first outlet, a second inlet, and a second outlet are disposed on the sealing ring. Thus, the first and second channels are respectively disposed in two independent embedded bodies, which are then assembled at one end of the embedded housing. The embedded bodies are then covered with a soft sealing ring to ensure no leakage at any operating position.

[0011] In some embodiments, the first drain outlet is located near the front wall of the measuring box, and the second drain outlet is located near the rear wall of the measuring box. The bottom of the receiving cavity slopes from the side wall of the receiving cavity towards the side where the first drain outlet is located, and the bottom of the overflow cavity slopes from the side wall of the overflow cavity towards the side where the second drain outlet is located. Thus, the sloped bottoms of the receiving cavity and the overflow cavity facilitate the complete drainage of urine from their respective chambers. The first and second drain outlets are positioned in two locations within the measuring box, corresponding to the positions of the first and second channels, allowing the receiving cavity and the overflow cavity to discharge independently.

[0012] In some embodiments, a partition is provided between the receiving cavity and the overflow cavity. The partition includes a first partition portion and a second partition portion. The first partition portion is further away from the sidewall of the receiving cavity than the second partition portion, forming a stepped upper part of the partition. The overflow outlet is located at the upper part of the partition and near the front wall of the measuring box to prevent the liquid in the receiving cavity and the overflow cavity from mixing when the measuring box is laid flat. Thus, when the measuring box is laid flat, some of the urine in the receiving cavity that was originally located below the overflow outlet will flow to the top of the overflow outlet. Since the width above the overflow outlet is greater than the width below it, it can accommodate the urine flowing back to the top of the overflow outlet. Furthermore, since the overflow outlet is near the front wall of the measuring box and near the rear wall of the measuring box when the urine flows back, the urine in the receiving cavity will not flow into the overflow cavity, which is beneficial to the accuracy of data recording in the receiving cavity and the overflow cavity.

[0013] In some embodiments, the outlet is used to connect to the urine bag. The lower end of the outlet has a cylindrical structure, and a fixing clip is provided at the outlet. The fixing clip has multiple separately arranged clamping claws, and the outer wall of the clamping claws is threaded with a locking ring to fix or release the urine bag. Thus, the urine bag opening is fitted onto the outlet, and the clamping claws are distributed outside the urine bag opening. Rotating the locking ring engages with the clamping claws through the threads, making the urine bag opening more reliably fixed to the outlet and providing better sealing. When changing the urine bag, simply unscrew the locking ring, making the operation convenient.

[0014] In some embodiments, the inlet is connected to a tube body for connecting to a urinary catheter. The proximal end of the tube body has a hollow handle and a trapezoidal connector, with a protective cap on the trapezoidal connector. The handle has a sampling port for connecting a non-invasive sampler. Thus, the handle at the proximal end of the tube body makes insertion of the tube body and the urinary catheter easier and more stable.

[0015] In some embodiments, the tube is a double-lumen tube with a spiral ring on the distal outer wall. This prevents blockage of the tube; the double-lumen design and the spiral ring at the distal end prevent urine accumulation caused by folding or compression of the tube.

[0016] Compared with the prior art, the beneficial effects of this utility model are: (i) This utility model has a receiving chamber and an overflow chamber, and adds a discharge chamber. The amount of urine collected in the measuring box can be intuitively known through the scale markings on the receiving chamber and the overflow chamber respectively. A control switch is set at the intersection of the three chambers. The control switch realizes the separate discharge of the receiving chamber and the overflow chamber through the first channel and the second channel. The urine from the two chambers is discharged into a urine bag by using a discharge chamber, which is very convenient for clinical application.

[0017] The control switch places the first and second channels on two embedded bodies distributed front and rear, and together with the sealing ring, realizes three working states: measurement, emptying the receiving cavity, and emptying the overflow cavity. The collection and discharge working modes can be switched flexibly and are easy to operate.

[0018] (ii) The overflow outlet inside the measuring box is designed with a stepped structure that is wider at the top and narrower at the bottom, and the overflow outlet is designed to be close to the front wall. This prevents urine in the receiving chamber from flowing into the overflow chamber when the measuring box is laid flat, which is beneficial to the accuracy of data recording in the receiving chamber and the overflow chamber.

[0019] (iii) The outlet is equipped with clamping claws and locking rings, which enable quick replacement of the urine bag and provide good sealing and stability. The tube body adopts a double-lumen tube and has a spiral ring attached to the distal end to effectively prevent obstruction of urine delivery and ensure smooth pipeline flow. Attached Figure Description

[0020] Figure 1 This is a perspective view of one embodiment of the precision urine measuring device of this utility model; Figure 2 yes Figure 1 A structural diagram from another perspective; Figure 3 It is a 3D view of the measuring box; Figure 4 yes Figure 3 Rear view; Figure 5 This is a schematic diagram of the internal structure of the measuring box cut along the front wall. The front wall has been removed in the diagram, and the control switch is in the urine collection state at this time. Figure 6 When the control switch is rotated 90 degrees, the first channel is opened and the receiving cavity is in the discharge state. Figure 7 When the control switch is rotated 180 degrees, the second channel opens, and the overflow chamber is in the discharge state. Figure 8 This is a schematic diagram of the control switch, in which, Figure 8 A in the diagram is a 3D image. Figure 8 B in the middle is the left view. Figure 8 C in the middle is the bottom view; Figure 9 This is a schematic diagram of the embedded shell structure, in which, Figure 9 A in the diagram is a 3D image. Figure 9 B in the middle is the left view. Figure 9 C in the middle is the bottom view; Figure 10 This is a schematic diagram of the structure of the first embedded body, in which, Figure 10 A in the diagram is a 3D image. Figure 10 B in the middle is the right view; Figure 11 This is a schematic diagram of the structure of the second embedding, in which, Figure 11 A in the diagram is a 3D image. Figure 11 B in the middle is the left view. Figure 11 C in the middle is the top view; Figure 12 This is a schematic diagram of the sealing ring, in which, Figure 12 A in the diagram is a 3D image. Figure 12 B in the middle is the bottom view; Figure 13 It is a 3D diagram of the gripper claw; Figure 14 It is a 3D diagram of the locking ring. Detailed Implementation

[0021] The present invention will be further described below with reference to specific embodiments.

[0022] like Figure 1 , Figure 2 and Figure 5As shown, the urine precision measuring device of one embodiment of this utility model is used for urine collection and measurement monitoring. It includes a transparent measuring box 100. The measuring box 100 has a partition 10 forming a receiving cavity 1 and an overflow cavity 2 side by side. The receiving cavity 1 has a small collection space, while the overflow cavity 2 has a large collection space. The receiving cavity 1 and the overflow cavity 2 are respectively marked with scale markings (not shown in the figure) to facilitate direct observation of the internal urine collection volume. An overflow port 21 is provided at the upper part of the partition 10, so that the receiving cavity 1 and the overflow cavity 2 are connected. The top of the receiving cavity 1 has a liquid inlet 11, which is used to insert a catheter (not shown in the figure) through the tube body 8. The bottom of the receiving cavity 1 has a first drain port 12. The overflow cavity 2 has a second drain port 22. The measuring box 100 also has a discharge cavity 3, which is located below the overflow cavity 2. The discharge cavity 3 has an inlet 31 and an outlet 32. The lower end of the outlet 32 ​​is a columnar structure, which is used to connect the urine bag 200. The bottom of the measuring box 100 has a hanging part 103 for suspending the urine bag 200. A control switch 4 is provided at the junction of the receiving chamber 1, the overflow chamber 2, and the discharge chamber 3. The control switch 4 can control the opening and closing of the inlet 31. When the inlet 31 is closed, the measuring box 100 is in a state of accumulating urine. The control switch 4 has a first channel 410 and a second channel 420, so that the inlet 31 is connected to the first discharge port 12 and the second discharge port 22 respectively, so as to empty the receiving chamber 1 and the overflow chamber 2 separately.

[0023] The control switch 4 is a rotary switch with three operating positions, referred to as the first position, the second position, and the third position. The main body of the control switch 4 is a cylindrical structure embedded in the measuring box 100 and can rotate relative to the measuring box 100.

[0024] Specifically, such as Figures 8 to 12As shown, the control switch 4 includes an embedded shell 44, a sealing ring 43, a first embedded body 41, and a second embedded body 42. The first embedded body 41 and the second embedded body 42 are cylindrical in shape, and the sealing ring 43 is a hollow cylindrical structure made of soft rubber. A first channel 410 is located within the first embedded body 41, forming a channel with an included angle A of 125°, and both ends of the first channel 410 extend to the outer peripheral surface of the first embedded body 41. A second channel 420 is located within the second embedded body 42, forming a channel with an included angle B of 30°, and both ends of the second channel 420 extend to the outer peripheral surface of the second embedded body 42. The sealing ring 43 correspondingly has a first inlet 411 and a first outlet 412 corresponding to the two ends of the first channel 410, and a second inlet 421 and a second outlet 422 corresponding to the two ends of the second channel 420. One end of the embedded shell 44 is a handheld knob 441, and the other end of the embedded shell 44 has two pillars 442 extending in the longitudinal direction. The first insert 41 and the second insert 42 have holes that match the column 442. The first insert 41 and the second insert 42 fit into the column 442 using their holes, so that the first insert 41 and the second insert 42 are installed in a front-to-back arrangement on the insert shell 44. Figure 3 and 4 As shown, the second insert 42 has a protruding mounting portion 423 at the rear center position. Figure 11 As shown, a retaining ring 5 can be installed to limit the back-to-back movement of the second insert 42 and the first insert 41. A plug can also be added to the back of the test box 100 to block the back of the control switch 4. The outer periphery of the first insert 41 and the second insert 42 has a positioning ridge 430. The inner wall of the sealing ring 43 has an inlet groove 431 that matches the positioning ridge 430. The inlet groove 431 of the sealing ring 43 is fitted along the positioning ridge 430 to the outside of the first insert 41 and the second insert 42, so that the sealing ring 43 covers the first insert 41 and the second insert 42, and the first channel 410 and the second channel 420 are unobstructed.

[0025] like Figure 5 As shown, when the control switch 4 is in the first position, the first drain port 12, the second drain port 22, and the inlet port 31 are blocked by the sealing ring 43, thus closing the first channel 410 and the second channel 420. At this time, the measuring device is in the urine collection state. Figure 6 As shown, when the control switch 4 is in the second position, the first inlet 411 is aligned with the first drain port 12, and the first outlet 412 is aligned with the inlet port 31, thus opening the first channel 410 and placing it in a separate discharge state of the receiving chamber 1. Figure 7As shown, when control switch 4 is in the third position, the second inlet 421 is aligned with the second drain port 22, and the second outlet 422 is aligned with the inlet port 31, opening the second channel 420 and placing it in the separate discharge state of overflow chamber 2. This control switch 4 is a manually operated rotary switch with three working positions corresponding to three working states, and switching between the three states is easy and convenient for nursing staff. The sealing ring 43 is made of soft rubber and serves as a seal, ensuring no leakage in each working position. In practical applications, the three working positions can be marked to remind nursing staff to identify the position and completion status. When control switch 4 is in the first position, urine collection is in normal operation. When control switch 4 is rotated 90° to the second position, the receiving chamber 1 is in the discharge state. When control switch 4 is rotated 180° to the third position, the overflow chamber 2 is in the discharge state.

[0026] like Figure 5 As shown, the first insert 41 and the second insert 42 are arranged in a front-to-back configuration. The first drain port 12 is located near the front wall of the measuring box 100, and the second drain port 22 is located near the rear wall of the measuring box 100, ensuring that the receiving cavity 1 and the overflow cavity 2 do not interfere with each other when discharging separately. To ensure smooth discharge, the bottoms of both the receiving cavity 1 and the overflow cavity 2 are inclined. Specifically, the bottom of the receiving cavity 1 is inclined from its side wall towards the side where the first drain port 12 is located, and the bottom of the overflow cavity 2 is inclined from its side wall towards the side where the second drain port 22 is located.

[0027] like Figure 5 and 6 As shown, the partition 10 between the receiving cavity 1 and the overflow cavity 2 specifically includes a first partition 101 and a second partition 102. The first partition 101 is further away from the side wall of the receiving cavity 1 than the second partition 102, thus forming a structure that is wider at the top and narrower at the bottom within the receiving cavity 1, making the upper part of the partition 10 step-like. The overflow port 21 is located at the upper part of the partition 10, at the inflection point of the first partition 101 and the second partition 102, and is close to the front wall of the measuring box 100. When the measuring box 100 is laid flat, some of the urine originally located below the overflow port 21 in the receiving cavity 1 will flow to the top of the overflow port. Since the upper width of the overflow port 21 is greater than the lower width, it can accommodate the urine flowing back to the top of the overflow port 21. And because the overflow port 21 is close to the front wall of the measuring box 100, it is close to the rear wall of the measuring box 100 when the urine flows back, so the urine in the receiving cavity 1 will not flow into the overflow cavity 2, which is beneficial to the accuracy of data recording in the receiving cavity 1 and the overflow cavity 2.

[0028] like Figure 1 , Figure 13 and Figure 14As shown, a fixing clip 7 is fitted at the outlet 32. The upper end of the fixing clip 7 is annular, and the lower part has multiple separately arranged clamping claws 71. The outer wall of the clamping claws 71 has external threads. The clamping claws 71 are threadedly connected to a locking ring 72 to fix or release the urine bag 200. Specifically, the opening end of the urine bag 200 is fitted onto the outlet 32, and the clamping claws 71 are distributed outside the opening end of the urine bag 200. Rotating the locking ring 72 engages with the clamping claws 71 through the threads, making the opening end of the urine bag 200 more reliably fixed to the outlet 32 ​​and providing better sealing. To replace the urine bag 200, simply unscrew the locking ring 72 and remove the urine bag 200.

[0029] like Figure 1 and 2 As shown, the inlet 11 is connected to the tube body 8, and the outer wall of the tube body 8 at the connection point (i.e., the distal outer wall of the tube body 8) has a spiral ring 81. The tube body 8 is a double-lumen tube to prevent urine accumulation caused by folding or compression of the tube body 8. The proximal end of the tube body 8 is used to connect to the catheter, and a hollow handle 82 and a trapezoidal connector 83 are connected to the proximal end of the tube body 8. A protective cap 84 is provided on the trapezoidal connector 83. The handle 82 has a sampling port 821 for connecting a non-invasive sampler, typically a Luer sampler or a sliding sampler. The protective cap 84 has an annular convex edge 841, which is connected to the handle 82 by a connecting rib 842. This design of the proximal end of the tube body 8 makes it easier to insert the tube body 8 into the catheter, more stable after insertion, and convenient for sampling. The protective cap 84 can be hung next to the handle 82 after removal and will not be lost. A flow-blocking clamp 85 is provided on the tube body 8 to block urine from flowing into the receiving chamber 1. A suspension clamp 86 is provided on the tube body 8 to facilitate suspension of the tube body 8.

[0030] The method of using this precision urine measuring device is as follows: Suspend the urine bag 200 at the bottom of the measuring box 100. Place the opening of the urine bag 200 onto the outlet 32, clamp it with the gripper 71, and tighten the locking ring 72 to secure the urine bag 200 to the measuring box 100. Hold the handle 82. Remove the protective cap 84 to expose the trapezoidal connector 83. Connect the proximal end of the tube body 8 to the catheter. The measuring box 100 can be hung upright. Urine enters the tube body 8 through the catheter, then enters the receiving chamber 1 through the receiving port 11 for collection. Urine is collected until it reaches the overflow port 21, from which it enters the overflow chamber 2. Nursing personnel can read the scale markings on the receiving chamber 1 and overflow chamber 2 to know the amount of urine discharged. They can also observe the color of the urine through the transparent measuring box 100. During urine collection, the control switch 4 is in the first working position, and the first and second drainage ports 12 and 22 are blocked by the sealing ring 43.

[0031] Once overflow chamber 2 is full, or when there is a need for discharge, manually rotate the knob 90 degrees. The first inlet 411 aligns with the first drain port 12, and the first outlet 412 aligns with the inlet port 31. The first channel 410 connects the receiving chamber 1 and the discharge chamber 3, thus entering the second working position. The second channel 420 is closed, and the urine in the receiving chamber 1 flows into the discharge chamber 3 through the first channel 410, and is discharged from the outlet 32 ​​to the urine bag 200, achieving independent discharge from the receiving chamber 1. Then, manually rotate the knob 90 degrees again. The second inlet 421 aligns with the second drain port 22, and the second outlet 422 aligns with the inlet port 31, and the second channel 420 connects the overflow chamber 2 and the discharge chamber 3, thus entering the third working position. The first channel 410 is closed, and the urine in the overflow chamber 2 flows into the discharge chamber 3 through the second channel 420, and is discharged from the outlet 32 ​​to the urine bag 200, achieving independent discharge from the overflow chamber 2.

[0032] During operation, if the measuring box 100 is laid flat, because the overflow outlet 21 inside the measuring box 100 is designed with a stepped structure that is wider at the top and narrower at the bottom, and combined with the design of the overflow outlet 21 being close to the front wall, the urine in the receiving cavity 1 will not flow into the overflow cavity 2, thus not affecting the accuracy of data recording in the receiving cavity 1 and the overflow cavity 2.

[0033] The main body of this precision urine measuring device is a transparent box, with a receiving chamber 1 and an overflow chamber 2, both with scale markings, allowing for direct reading of the urine collection volume in the measuring box 100. An additional discharge chamber 3 is also included. A control switch 4 is located at the intersection of the receiving chamber 1, overflow chamber 2, and discharge chamber 3, enabling normal urine collection and separate discharge of urine from the two chambers. This allows the measuring device to collect urine from multiple chambers without increasing the number of urine bags 200, thus not adding extra workload to nursing staff.

[0034] Switching between the three working modes—collection and measurement, emptying receiving cavity 1, and emptying overflow cavity 2—can be achieved through a rotatable control switch 4, making operation very convenient.

[0035] The above descriptions are merely some embodiments of this utility model. It should be noted that those skilled in the art can make other modifications and improvements without departing from the inventive concept of this utility model, and these all fall within the protection scope of this utility model.

Claims

1. A precision urine measuring device, comprising a transparent measuring box (100), the measuring box (100) having a receiving cavity (1) and an overflow cavity (2) arranged side by side, both the receiving cavity (1) and the overflow cavity (2) having scale markings, and an overflow port (21) communicating with the overflow cavity (2) is provided above the receiving cavity (1), characterized in that, The measuring box (100) also has a discharge chamber (3), which has an inlet (31) and an outlet (32). The receiving chamber (1) has a receiving port (11) at the top and a first drain port (12) at the bottom. The overflow chamber (2) has a second drain port (22). A control switch (4) is provided at the inlet (31). The control switch (4) has a first channel (410) and a second channel (420) to connect the inlet (31) to the first drain port (12) and the second drain port (22) respectively to empty the receiving chamber (1) and the overflow chamber (2) separately.

2. The precision urine measuring device according to claim 1, characterized in that, The control switch (4) is a rotary switch with three working positions: the first position, the second position, and the third position. The main body of the control switch (4) is a cylindrical structure and is embedded in the measuring box (100). The outer periphery of the control switch (4) has a first inlet (411) and a first outlet (412) of the first channel (410), and a second inlet (421) and a second outlet (422) of the second channel (420). When the control switch (4) is in the first position, the first drain port (12) and the second drain port (22) are blocked; when the control switch (4) is in the second position, the first channel (410) is opened; when the control switch (4) is in the third position, the second channel (420) is opened.

3. The urine precision measuring device according to claim 2, characterized in that, The control switch (4) includes an embedded shell (44), a sealing ring (43), a first embedded body (41) and a second embedded body (42). The first channel (410) and the second channel (420) are respectively disposed on the first embedded body (41) and the second embedded body (42). One end of the embedded shell (44) is a knob (441). The first embedded body (41) and the second embedded body (42) are arranged in a front-to-back manner at the other end of the embedded shell (44). The sealing ring (43) covers the first embedded body (41) and the second embedded body (42). The first inlet (411), the first outlet (412), the second inlet (421) and the second outlet (422) are disposed on the sealing ring (43).

4. The precision urine measuring device according to claim 3, characterized in that, The first drain port (12) is located on the front wall of the measuring box (100), and the second drain port (22) is located on the rear wall of the measuring box (100). The bottom of the receiving cavity (1) is inclined from the side wall of the receiving cavity (1) toward the side where the first drain port (12) is located, and the bottom of the overflow cavity (2) is inclined from the side wall of the overflow cavity (3) toward the side where the second drain port (22) is located.

5. The precision urine measuring device according to claim 1, characterized in that, There is a partition (10) between the receiving cavity (1) and the overflow cavity (2). The partition (10) includes a first partition (101) and a second partition (102). The first partition (101) is further away from the side wall of the receiving cavity (1) than the second partition (102) so that the upper part of the partition (10) is stepped. The overflow port (2) is located on the upper part of the partition (10) and close to the front wall of the measuring box (100) to prevent the liquid in the receiving cavity (1) and the overflow cavity (2) from mixing when the measuring box (100) is laid flat.

6. The precision urine measuring device according to claim 1, characterized in that, The outlet (31) is used to connect the urine bag. The lower end of the outlet (31) is a columnar structure. A fixing clip (7) is provided at the outlet (31). The fixing clip (7) has multiple separately arranged clamping claws (71). The outer wall of the clamping claws (71) is connected with a locking ring (72) by a thread to fix or release the urine bag.

7. The precision urine measuring device according to claim 1, characterized in that, The inlet (11) is connected to a tube (8), which is used to connect to a urinary catheter. The proximal end of the tube (8) is provided with a hollow handle (82) and a trapezoidal connector (83). A protective cap (84) is provided on the trapezoidal connector (83). A sampling port (821) is provided on the handle (82) to connect to a non-invasive sampler.

8. The precision urine measuring device according to claim 7, characterized in that, The tube (8) is a double-lumen tube, and the outer wall of the distal end of the tube (8) is provided with a spiral ring (81).

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