Built-in urine volume detection device

Abstract

The invention belongs to the technical field of medical instruments, and particularly relates to a built-in urine volume detection device which is provided with a first half shell, a second half shell, an impeller, a permanent magnet and a Hall element. When urine of a patient enters the circular inner cavity between the first half shell and the second half shell, the impeller can be pushed to rotate, the permanent magnet is driven to do circumferential rotation, the Hall element detects a periodically changing magnetic field, an electric pulse signal is generated every time magnetic pole change is detected, the electric pulse signal is transmitted into the microprocessor, and the microprocessor is used for detecting the change of the magnetic pole. The total number of the electric pulse signals is the total number of revolutions of the impeller; the detection device is calibrated before leaving a factory, namely the urine volume corresponding to the impeller rotating by a circle is known, so that the urine discharge amount can be calculated; the urine volume data is calculated and uploaded to a central system of a nurse station in real time, so that not only is the measurement accuracy improved, but also the workload of medical staff is greatly reduced.

Description

Technical Field

[0001] This invention belongs to the field of medical device technology, specifically a built-in urine volume detection device. Background Technology

[0002] In clinical settings such as critical care medicine, perioperative period of major surgery, shock, heart failure, and renal failure, accurate and real-time monitoring of patients' urine output is a crucial vital sign indicator; urine output is a direct and sensitive window reflecting the body's effective circulating blood volume, cardiac output, and renal perfusion and function.

[0003] Currently, the most widely used clinical methods rely on urine bags for collection, combined with manual visual measurement of urine volume; using graduated transparent urine bags connected to the patient's bladder via catheters to collect urine; and relying entirely on medical staff to periodically walk to the patient's bedside, bend down, read the graduations on the urine bag, and manually record them in the medical record.

[0004] The method of manually visually measuring the values ​​on the urine bag is not accurate enough because the volume and shape of the urine bag change as urine increases, making it difficult to obtain an accurate urine output.

[0005] Therefore, the present invention provides a built-in urine volume detection device. Summary of the Invention

[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0007] The technical solution adopted by the present invention to solve its technical problem is as follows: The present invention provides a built-in urine volume detection device, comprising a first half-shell and a second half-shell; the first half-shell and the second half-shell are fixedly fastened by multiple bolts; a first inlet port and a first outlet port are respectively fixedly connected to both ends of the first half-shell; the first inlet port is connected to a urine tube; the first outlet port is connected to a urine bag; an impeller is rotatably installed in the middle between the first half-shell and the second half-shell; a permanent magnet is fixedly connected to the side of the impeller near the second half-shell; a Hall element is disposed in the middle of the side of the second half-shell away from the first half-shell.

[0008] Preferably, a mounting ring is fixedly connected to the outer ring of the side of the second half-shell away from the first half-shell; the inner ring of the mounting ring is provided with multiple fixing grooves; one end of the fixing groove is provided with an opening on the side away from the second half-shell; the outer ring of the Hall element is fixedly connected with multiple fixing protrusions; the width of the fixing protrusions matches the width of the opening.

[0009] Preferably, a liquid inlet groove is provided on the side of the first half-shell and the second half-shell that are close to each other, and at the end near the first liquid inlet port; the outlet of the liquid inlet groove is tangent to the inner wall of one side of the first half-shell and the second half-shell; and a liquid outlet groove is provided on the side of the first half-shell and the second half-shell that are close to each other, and at the end near the first liquid outlet port.

[0010] Preferably, a plurality of anti-reverse rubber sheets are fixedly connected between the first half-shell and the second half-shell on the side away from the outlet of the liquid inlet chute; a plurality of arc-shaped protrusions are uniformly fixedly connected to the anti-reverse rubber sheets; the arc-shaped protrusions are inclined toward the outlet side of the liquid inlet chute; the blades of the impeller slide in contact with the convex surface of the arc-shaped protrusions.

[0011] Preferably, the blades of the impeller are arc-shaped plate structures, and the convex surface of the blades can contact the convex surface of the arc-shaped convex plate.

[0012] Preferably, a liquid storage tank is provided at one end of the first liquid inlet port near the urine tube; a second liquid inlet and a second liquid outlet are respectively fixed to both ends of the liquid storage tank; the second liquid outlet is inserted and fixed to the first liquid inlet port; the second liquid inlet is connected to the urine tube; and a valve for opening and closing the second liquid outlet is provided inside the liquid storage tank.

[0013] Preferably, the valve includes guide limiting rings; two guide limiting rings are fixedly connected inside the liquid storage tank; the two guide limiting rings are coaxially arranged with the second liquid inlet and the second liquid outlet; a slide rod is slidably installed between the two guide limiting rings; a float is fixedly connected to the outer ring of the middle part of the slide rod; the float is located between the two guide limiting rings; a sealing plug is fixedly connected to the bottom end of the slide rod; the sealing plug can block and seal the second liquid outlet.

[0014] Preferably, a tube is provided inside the second inlet of the liquid storage tank; a mounting post is fixedly connected to the middle of the tube; a retaining ring is fixedly connected to the inner ring of the bottom of the tube; a diaphragm is fixedly connected to the bottom end of the mounting post; and the top surface of the outer ring of the diaphragm is in contact with the bottom surface of the retaining ring.

[0015] Preferably, the first half-shell is fixedly connected to the middle of the outer wall of the liquid storage tank with an internally threaded cylinder; the outer rings of the two internally threaded cylinders are fitted with connecting plates; the internal threads of the internally threaded cylinders are fitted with locking bolts; the locking bolts can compress the connecting plates.

[0016] Preferably, an elastic clip is bolted to the center of the side of the connecting plate away from the first half-shell.

[0017] The beneficial effects of this invention are as follows: 1. The present invention discloses a built-in urine volume detection device, comprising a first half-shell, a second half-shell, an impeller, a permanent magnet, and a Hall element. The patient's urine enters the circular inner cavity between the first and second half-shells, driving the impeller to rotate, which in turn causes the permanent magnet to rotate in a circular motion. The Hall element detects the periodically changing magnetic field, generating an electrical pulse signal for each detected magnetic pole change. This electrical pulse signal is transmitted to a microprocessor, and the total number of electrical pulse signals represents the total number of impeller rotations. The detection device is calibrated before leaving the factory, meaning the urine volume corresponding to one rotation of the impeller is known; therefore, the urine output can be calculated. The calculated urine volume data is uploaded in real time to the central system at the nurses' station, which not only improves the accuracy of the measurement but also greatly reduces the workload of medical staff.

[0018] 2. The built-in urine volume detection device of the present invention, by setting an installation ring, a fixing groove and a fixing protrusion; by setting the Hall element to be detachable and installable, it is convenient to replace and charge the Hall element, thereby extending the service life of the Hall element; at the same time, it is convenient to recycle the Hall element, which helps to reduce costs.

[0019] 3. The built-in urine volume detection device of the present invention comprises a storage tank and a valve. Urine flows into the storage tank through a urine tube. At this time, the valve blocks and closes the second outlet, causing the urine to accumulate in the storage tank. As the amount of urine in the storage tank increases, the force on the valve gradually increases until the valve opens. At this time, the urine in the storage tank is discharged from the first inlet into the space between the first and second halves of the housing, increasing the thrust of the urine on the impeller, thereby ensuring the rotation of the impeller. At the same time, due to the collection and release of urine by the storage tank, the amount of urine entering the space between the first and second halves of the housing remains relatively stable each time, thereby improving the consistency of the impeller rotation rate and thus improving the accuracy and effectiveness of the detection. Attached Figure Description

[0020] The invention will now be further described with reference to the accompanying drawings.

[0021] Figure 1 This is a perspective view of the present invention; Figure 2 This is a perspective view of the first and second half-shells in this invention. Figure 3 This is a diagram of the internal structure of the first half-shell in this invention; Figure 4 This is an exploded view of the first and second half-shells in this invention; Figure 5 This is a perspective view of the second half-shell and the Hall element in this invention; Figure 6 This is a perspective view of the impeller and permanent magnet in this invention; Figure 7 This is a perspective view of the anti-reverse rubber sheet and the arc-shaped protrusion of the present invention; Figure 8 This is a diagram of the internal structure of the liquid storage tank in this invention; Figure 9 This is a perspective view of the valve in this invention; Figure 10 This is a cross-sectional view of the tube body in this invention; Figure 11 This is a perspective view of the connecting plate and the elastic clip in this invention; In the diagram: 1. No. 1 half-shell; 2. No. 2 half-shell; 3. No. 1 liquid inlet port; 4. No. 1 liquid outlet port; 5. Impeller; 6. Permanent magnet; 7. Hall element; 8. Mounting ring; 9. Fixing groove; 10. Fixing protrusion; 11. Liquid inlet inclined groove; 12. Liquid outlet groove; 13. Anti-reverse rubber sheet; 14. Arc-shaped protrusion; 15. Storage tank; 16. Guide limit ring; 17. Sliding rod; 18. Float; 19. Sealing plug; 20. Tube body; 21. Mounting column; 22. Retaining ring; 23. Diaphragm; 24. Internal threaded cylinder; 25. Connecting plate; 26. Locking bolt; 27. Elastic clamp. Detailed Implementation

[0022] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0023] like Figures 1 to 6 As shown in the embodiment of the present invention, a built-in urine volume detection device includes a first half-shell 1 and a second half-shell 2; the first half-shell 1 and the second half-shell 2 are fixedly locked together by multiple bolts; a first inlet port 3 and a first outlet port 4 are respectively fixedly connected to both ends of the first half-shell 1; the first inlet port 3 is connected to a urine tube; the first outlet port 4 is connected to a urine bag; an impeller 5 is rotatably installed in the middle between the first half-shell 1 and the second half-shell 2; a permanent magnet 6 is fixedly connected to the side of the impeller 5 near the second half-shell 2; a Hall element 7 is disposed in the middle of the side of the second half-shell 2 away from the first half-shell 1. Specifically, the middle of the side of the first half shell 1 and the second half shell 2 that are close to each other forms a complete circular inner cavity; the outer ring of the first half shell 1 and the second half shell 2 is provided with multiple countersunk holes around the circular inner cavity. Bolts are used to pass through the corresponding countersunk holes of the first half shell 1 and the second half shell 2 to lock and fix the first half shell 1 and the second half shell 2. The contact surface of the first half shell 1 and the second half shell 2 is provided with a sealing ring. A circular groove is provided at the midpoint of the side of the first half-shell 1 and the second half-shell 2 that are close to each other, and a rotating shaft is inserted between the two circular grooves; the impeller 5 includes a hub located in the middle and blades arranged around the hub; the hub is fitted around the outer ring of the rotating shaft, and a bearing is provided between the hub and the rotating shaft; the hub is a hollow structure; a groove for fixing and installing a permanent magnet 6 is provided on the side of the hub of the impeller 5 that is close to the second half-shell 2; The Hall element 7 is a magnetic sensor that operates based on the Hall effect. Its core is a semiconductor wafer, usually made of materials such as indium arsenide, indium antimonide, or gallium arsenide. The housing of the Hall element 7 also houses a lithium battery and a microprocessor. The lithium battery powers the Hall element 7 and the microprocessor. The Hall element 7 detects changes in the magnetic field and outputs an electrical pulse signal to the microprocessor, which calculates the amount of urine excreted each time and uploads the data to the central system at the nurse station in real time. In practice, the patient's urine enters the circular cavity between the first half-shell 1 and the second half-shell 2 through the inlet port 3 of the urinary catheter, and is discharged into the urine bag through the outlet port 4. As the urine passes through the circular cavity, it drives the impeller 5 to rotate, causing the permanent magnet 6 to rotate in a circular motion. The Hall element 7 detects the periodically changing magnetic field. Each time a change in magnetic poles is detected, an electrical pulse signal is generated and transmitted to the microprocessor. The total number of electrical pulse signals is the total number of revolutions of the impeller 5. The detection device is calibrated before leaving the factory, meaning the volume of urine corresponding to one revolution of the impeller 5 is known. Therefore, the urine output can be calculated. The calculated urine output data is uploaded to the central system at the nurse station in real time, which not only improves the accuracy of the measurement but also greatly reduces the workload of medical staff.

[0024] In some embodiments, such as Figure 2 , Figure 4 and Figure 5 As shown, a mounting ring 8 is fixedly connected to the outer ring of the side of the second half-shell 2 away from the first half-shell 1; a plurality of fixing grooves 9 are formed around the inner ring of the mounting ring 8; a slot is formed on the side of the fixing groove 9 away from the second half-shell 2; a plurality of fixing protrusions 10 are fixedly connected around the outer ring of the Hall element 7; the width of the fixing protrusions 10 can be matched to the width of the slot. Specifically, the mounting ring 8 is fixedly mounted to the outer wall of the second half-shell 2 by screws, and the center of the mounting ring 8 is aligned with the shaft of the impeller 5; the inner diameter of the mounting ring 8 is the same as the outer diameter of the Hall element 7. During installation, align the fixing protrusion 10 on the outer ring of the Hall element 7 with the slot on the fixing groove 9, insert the Hall element 7 into the inner ring of the mounting ring 8, and insert the fixing protrusion 10 from the slot on the fixing groove 9 into the fixing groove 9. At this time, rotate the Hall element 7 to make the fixing protrusion 10 misalign with the slot, and the fixing protrusion 10 snaps into the fixing groove 9, thus completing the installation of the Hall element 7. By making the Hall element 7 detachable and installable, it is easy to replace and charge the Hall element 7, thereby extending its service life; at the same time, it is easy to recycle the Hall element 7, which helps to reduce costs.

[0025] In some embodiments, such as Figure 3 As shown, a liquid inlet groove 11 is provided on the side of the first half-shell 1 and the second half-shell 2 that are close to each other and at the end near the first liquid inlet port 3; the outlet of the liquid inlet groove 11 is tangent to the inner wall of one side of the first half-shell 1 and the second half-shell 2; a liquid outlet groove 12 is provided on the side of the first half-shell 1 and the second half-shell 2 that are close to each other and at the end near the first liquid outlet port 4. Specifically, through the inlet chute 11, when urine enters the circular inner cavity between the first half-shell 1 and the second half-shell 2 through the first inlet port 3, the urine is guided by the inlet chute 11, causing the urine to enter the circular inner cavity along one side of the inner wall of the first half-shell 1 and the second half-shell 2. This concentrates the urine on one side of the impeller 5, which helps to drive the impeller 5 to rotate and improve the accuracy of the detection. The outlet chute 12 increases the space at the end of the first outlet port 4, which helps the urine to drain into the urine bag along the first outlet port 4.

[0026] Furthermore, such as Figure 3 , Figure 4 and Figure 7 As shown, a plurality of anti-reverse rubber sheets 13 are fixedly connected between the first half-shell 1 and the second half-shell 2 on the side away from the outlet of the liquid inlet chute 11; a plurality of arc-shaped protrusions 14 are uniformly fixedly connected to the anti-reverse rubber sheets 13; the arc-shaped protrusions 14 are inclined toward the outlet side of the liquid inlet chute 11; the blades of the impeller 5 slide in contact with the convex surface of the arc-shaped protrusions 14; Specifically, the arc-shaped protrusion 14 and the anti-reverse rubber sheet 13 are integrally set and are both made of rubber. The arc-shaped protrusion 14 is elastic. The arc-shaped protrusion 14 has an arc-shaped curved structure, and the orientation of the arc-shaped protrusion 14 is in the same circumferential direction as the orientation of the outlet of the liquid inlet inclined groove 11. When urine enters the circular inner cavity between the first half-shell 1 and the second half-shell 2 from the inlet inclined groove 11, the urine pushes the impeller 5 to rotate, so that the blades of the impeller 5 come into contact with the convex surface of the arc-shaped protrusion 14, causing the arc-shaped protrusion 14 to bend toward the anti-reverse rubber sheet 13, so that the impeller 5 can rotate normally. When the impeller 5 rotates in the reverse direction, the blades of the impeller 5 contact the concave surface of the arc-shaped protrusion 14, causing the impeller 5 to be blocked by the arc-shaped protrusion 14 and restricting the rotation of the impeller 5. This restricts the rotation direction of the impeller 5, so that the rotation direction of the impeller 5 can only be consistent with the outlet direction of the liquid inlet chute 11, thereby avoiding the difference in detection caused by the change in the rotation direction of the impeller 5 and improving the accuracy of detection.

[0027] Furthermore, such as Figure 6 As shown, the blades of the impeller 5 are arc-shaped plate structures, and the convex surface of the blades can contact the convex surface of the arc-shaped protrusion 14. By setting the blades of impeller 5 into an arc-shaped plate structure, and having the convex surface of the blades contact the convex surface of the arc-shaped protrusion 14, the sliding resistance between the blades of impeller 5 and the convex surface of the arc-shaped protrusion 14 is reduced when impeller 5 rotates normally, which is beneficial to the rotation of impeller 5; when impeller 5 rotates in the opposite direction, the arc-shaped plate blades of impeller 5 can engage with the concave surface of the arc-shaped protrusion 14, which helps to limit the reverse rotation of impeller 5; further limiting the rotation direction of impeller 5.

[0028] In some embodiments, such as Figure 1 and Figure 8 As shown, a liquid storage tank 15 is provided at one end of the first liquid inlet 3 near the urine tube; a second liquid inlet and a second liquid outlet are respectively fixed to both ends of the liquid storage tank 15; the second liquid outlet is inserted and fixed to the first liquid inlet 3; the second liquid inlet is connected to the urine tube; a valve for opening and closing the second liquid outlet is provided inside the liquid storage tank 15. Specifically, the liquid storage tank 15 has a flat spherical structure, with the second liquid inlet located at the top of the liquid storage tank 15 and the second liquid outlet located at the bottom of the liquid storage tank 15; the liquid storage tank 15 is located on top of the first half shell 1 and the second half shell 2; the liquid storage tank 15, the first half shell 1 and the urine bag are arranged in the same vertical direction from top to bottom. In practice, urine flows into the storage tank 15 through the urine tube. At this time, because the valve blocks and closes the second outlet, the urine accumulates in the storage tank 15. As the amount of urine in the storage tank 15 increases, the force on the valve gradually increases until the valve is opened. At this time, the urine in the storage tank 15 is discharged from the first inlet port 3 into the space between the first half-shell 1 and the second half-shell 2, increasing the thrust of the urine on the impeller 5, thereby ensuring the rotation of the impeller 5. At the same time, due to the accumulation and release of urine in the storage tank 15, the amount of urine entering the space between the first half-shell 1 and the second half-shell 2 each time remains relatively stable, thereby improving the consistency of the rotation rate of the impeller 5, and thus improving the accuracy and effectiveness of the detection.

[0029] Furthermore, such as Figures 8 to 9As shown, the valve includes guide limiting rings 16; two guide limiting rings 16 are fixedly connected inside the liquid storage tank 15; the two guide limiting rings 16 are coaxially arranged with the second liquid inlet and the second liquid outlet; a slide rod 17 is slidably installed between the two guide limiting rings 16; a float ball 18 is fixedly connected to the outer ring of the middle part of the slide rod 17; the float ball 18 is located between the two guide limiting rings 16; a sealing plug 19 is fixedly connected to the bottom end of the slide rod 17; the sealing plug 19 can block and seal the second liquid outlet. Specifically, both ends of the guide limiting ring 16 are fixedly connected to a crossbar, and the end of the crossbar away from the guide limiting ring 16 is fixedly connected to the inner wall of the liquid storage tank 15; both ends of the slide rod 17 are slidably engaged with the two guide limiting rings 16 respectively. In practice, when there is no urine inside the storage tank 15, the float 18 and the sealing plug 19 move downward under their own weight, so that the float 18 is located at the top of the guide limiting ring 16 below, and the sealing plug 19 blocks the second liquid outlet. When urine enters the reservoir 15, the amount of urine is small and has not yet reached the float 18, causing the sealing plug 19 to still block the second outlet. Only when the urine level in the reservoir 15 reaches half the height of the float 18 does the buoyancy generated by the urine exceed the weight of the float 18, slide rod 17, and sealing plug 19. This causes the float 18, slide rod 17, and sealing plug 19 to float upwards along the guide ring 16, separating the sealing plug 19 from the second outlet and opening it. This allows the urine to quickly enter the first inlet port 3 under its own weight, thus achieving urine accumulation and ensuring that the urine can drive the rotation of the impeller 5.

[0030] In some embodiments, such as Figure 8 and Figure 10 As shown, a tube 20 is provided inside the second inlet of the liquid storage tank 15; an installation post 21 is fixedly connected to the middle of the tube 20; a retaining ring 22 is fixedly connected to the inner bottom ring of the tube 20; a diaphragm 23 is fixedly connected to the bottom end of the installation post 21; the top surface of the outer ring of the diaphragm 23 is in contact with the bottom surface of the retaining ring 22. Specifically, the outer ring of the tube body 20 has an external thread, and the inner ring of the second liquid inlet has an internal thread, so that the tube body 20 is threaded into the inner ring of the second liquid inlet; the outer ring of the mounting post 21 is fixedly connected to the center of the inner ring of the tube body 20 by multiple connecting rods; the top of the mounting post 21 has an internal hexagonal groove, which facilitates the installation of the tube body 20 into the interior of the second liquid inlet; the bottom of the mounting post 21 has a screw hole, and the internal thread of the screw hole is fitted with a screw, which is used to fix the diaphragm 23 to the bottom of the mounting post 21. In practice, when urine enters the second inlet, it flows downward inside the tube 20. The urine impacts the diaphragm 23, causing the outer ring of the diaphragm 23 to bend downward, allowing the urine to enter the storage tank 15. When the storage tank 15 is tilted or inverted, the outer ring of the diaphragm 23 is blocked by the retaining ring 22, sealing the inside of the tube 20 and thus preventing backflow of urine.

[0031] In some embodiments, such as Figure 1 and Figure 11 As shown, the first half-shell 1 is fixedly connected to the middle of the outer wall of the liquid storage tank 15 with an internally threaded cylinder 24; the outer ring of the two internally threaded cylinders 24 is fitted with a connecting plate 25; the internal threads of the internally threaded cylinders 24 are fitted with locking bolts 26; the locking bolts 26 can compress the connecting plate 25. Specifically, the connecting plate 25 is a long strip-shaped plate structure, and openings are provided on one side of both ends of the connecting plate 25. The width of the openings is the same as the outer diameter of the internal threaded cylinder 24, so that the openings can be opened on the outer ring of the internal threaded cylinder 24. In practical use, the openings at both ends of the connecting plate 25 are respectively engaged with the outer rings of the two internal threaded cylinders 24. The locking bolts 26 are used in conjunction with the internal threaded cylinders 24 to lock and fix the ends of the connecting plate 25. The connecting plate 25 fixes and locks the first half shell 1 and the liquid storage tank 15, so that the connecting plate 25 fixes the positional relationship between the first half shell 1, ensuring that the liquid storage tank 15 is located above the first half shell 1, and preventing urine backflow.

[0032] An elastic clip 27 is bolted to the middle of the side of the connecting plate 25 away from the first half shell 1; Specifically, the connecting plate 25 has a straight slot in the middle, the elastic clip 27 has a U-shaped structure, and the openings of the elastic clips 27 are close together; one side of the elastic clip 27 is fixedly connected by bolts passing through the straight slot of the connecting plate 25. The elastic clip 27 allows the testing device to be hung on the side of the bed, which not only effectively reduces the stress on the urinary catheter and prevents the testing device from falling off due to gravity, but also ensures that the testing device remains vertical.

[0033] Working principle: Urine flows into the storage tank 15 through the urine tube. At this time, the valve blocks and closes the second outlet, causing the urine to accumulate in the storage tank 15. As the amount of urine in the storage tank 15 increases, the force on the valve gradually increases until the valve is opened. At this time, the urine in the storage tank 15 is discharged from the first inlet port 3 into the space between the first half-shell 1 and the second half-shell 2, increasing the thrust of the urine on the impeller 5, thereby ensuring the rotation of the impeller 5. At the same time, due to the collection and release of urine in the storage tank 15, the amount of urine entering the space between the first half-shell 1 and the second half-shell 2 each time remains relatively stable. The urinary catheter enters the circular cavity between the first half-shell 1 and the second half-shell 2 through the first inlet port 3, and discharges into the urine bag through the first outlet port 4. As the urine passes through the circular cavity, it drives the impeller 5 to rotate, causing the permanent magnet 6 to rotate in a circular motion. The Hall element 7 detects the periodically changing magnetic field. Each time a change in magnetic poles is detected, an electrical pulse signal is generated and transmitted to the microprocessor. The total number of electrical pulse signals is the total number of revolutions of the impeller 5. The detection device is calibrated before leaving the factory, meaning the volume of urine corresponding to one revolution of the impeller 5 is known. Therefore, the urine output can be calculated. The calculated urine output data is uploaded to the central system at the nurse station in real time, which not only improves the accuracy of the measurement but also greatly reduces the workload of medical staff.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A built-in urine volume detection device, characterized in that: It includes a first half-shell (1) and a second half-shell (2); the first half-shell (1) and the second half-shell (2) are locked and fixed by multiple bolts; the two ends of the first half-shell (1) are respectively fixed to a first inlet port (3) and a first outlet port (4); the first inlet port (3) is connected to the urine tube; the first outlet port (4) is connected to the urine bag; an impeller (5) is rotatably installed in the middle between the first half-shell (1) and the second half-shell (2); a permanent magnet (6) is fixed to the side of the impeller (5) near the second half-shell (2); a Hall element (7) is provided in the middle of the side of the second half-shell (2) away from the first half-shell (1).

2. The built-in urine volume detection device according to claim 1, characterized in that: The second half-shell (2) has an outer ring (8) fixedly connected to the middle of the side away from the first half-shell (1); the inner ring of the mounting ring (8) is provided with multiple fixing grooves (9); one end of the fixing groove (9) is provided with a slot on the side away from the second half-shell (2); the outer ring of the Hall element (7) is provided with multiple fixing protrusions (10); the width of the fixing protrusions (10) matches the width of the slot.

3. The built-in urine volume detection device according to claim 1, characterized in that: A liquid inlet groove (11) is provided on the side of the first half shell (1) and the second half shell (2) that are close to each other, and at the end near the first liquid inlet port (3); the outlet of the liquid inlet groove (11) is tangent to the inner wall of one side of the first half shell (1) and the second half shell (2); a liquid outlet groove (12) is provided on the side of the first half shell (1) and the second half shell (2) that are close to each other, and at the end near the first liquid outlet port (4).

4. The built-in urine volume detection device according to claim 3, characterized in that: Multiple anti-reverse rubber sheets (13) are fixedly connected between the first half shell (1) and the second half shell (2) away from the outlet side of the liquid inlet chute (11); multiple arc-shaped protrusions (14) are uniformly fixedly connected to the anti-reverse rubber sheets (13); the arc-shaped protrusions (14) are inclined toward the outlet side of the liquid inlet chute (11); the blades of the impeller (5) slide in contact with the convex surface of the arc-shaped protrusions (14).

5. The built-in urine volume detection device according to claim 4, characterized in that: The blades of the impeller (5) are arc-shaped plate structures, and the convex surface of the blades can contact the convex surface of the arc-shaped protrusion (14).

6. The built-in urine volume detection device according to claim 1, characterized in that: A liquid storage tank (15) is provided at one end of the first liquid inlet (3) near the urine tube; a second liquid inlet and a second liquid outlet are fixedly connected to both ends of the liquid storage tank (15); the second liquid outlet is inserted and fixed to the first liquid inlet (3); the second liquid inlet is connected to the urine tube; a valve for opening and closing the second liquid outlet is provided inside the liquid storage tank (15).

7. The built-in urine volume detection device according to claim 6, characterized in that: The valve includes guide limiting rings (16); two guide limiting rings (16) are fixed inside the liquid storage tank (15); the two guide limiting rings (16) are coaxially arranged with the second liquid inlet and the second liquid outlet; a slide rod (17) is slidably installed between the two guide limiting rings (16); a float (18) is fixedly connected to the outer ring of the middle part of the slide rod (17); the float (18) is located between the two guide limiting rings (16); a sealing plug (19) is fixedly connected to the bottom end of the slide rod (17); the sealing plug (19) can block and seal the second liquid outlet.

8. The built-in urine volume detection device according to claim 6, characterized in that: The storage tank (15) has a pipe body (20) inside its second inlet; a mounting post (21) is fixedly connected to the middle of the pipe body (20); a retaining ring (22) is fixedly connected to the inner bottom ring of the pipe body (20); a diaphragm (23) is fixedly connected to the bottom end of the mounting post (21); the top surface of the outer ring of the diaphragm (23) is in contact with the bottom surface of the retaining ring (22).

9. A built-in urine volume detection device according to claim 6, characterized in that: The first half-shell (1) is fixedly connected to the middle of the outer wall of the liquid storage tank (15) with an internal threaded cylinder (24); the outer rings of the two internal threaded cylinders (24) are fitted with connecting plates (25); the internal threads of the internal threaded cylinders (24) are fitted with locking bolts (26); the locking bolts (26) can compress the connecting plates (25).

10. A built-in urine volume detection device according to claim 9, characterized in that: An elastic clip (27) is bolted to the middle of the side of the connecting plate (25) away from the first half shell (1).

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