Special calcium concentration monitoring device for CRRT

Abstract

The utility model discloses a special calcium concentration monitoring device for CRRT (China Railway Reverse Transcription), which comprises a detection pool, a waste liquid collecting box and a cleaning mechanism for cleaning residual samples in the detection pool. A fixed plate is driven by a rotating motor to rotate, so that a cleaning brush scrubs a residual sample on the inner wall of the detection pool, and while the cleaning brush scrubs, a cleaning agent in a cleaning agent box is pumped into the detection pool through a micro infusion pump; under the action of a cleaning agent, half-flow samples on the inner wall of the detection pool can be fully brushed, the cleaning efficiency is guaranteed, after brushing is completed, a switch valve is turned on, waste liquid in the detection pool is discharged into a waste liquid collecting box, the waste liquid is collected, and detection personnel can conveniently clean the waste liquid regularly.

Description

Technical Field

[0001] This utility model relates to the technical field of calcium concentration monitoring equipment, specifically a calcium concentration monitoring device for CRRT. Background Technology

[0002] In clinical practice, continuous renal replacement therapy (CRRT) mimics the kidneys' filtration, reabsorption, and solute transport functions to continuously and slowly remove metabolic waste, inflammatory mediators, and excess fluids from the patient's body, while also regulating electrolyte and acid-base balance. As an important clinical treatment method, CRRT has demonstrated unique advantages in the treatment of critical illnesses such as acute kidney injury, sepsis, and severe pancreatitis.

[0003] Accurate monitoring of calcium ion concentration is crucial during continuous renal replacement therapy (CRRT). Calcium ions participate in various physiological processes in the body, and imbalances in their concentration can lead to serious complications such as arrhythmias, muscle cramps, and coagulation disorders. Therefore, calcium concentration monitoring devices are required to collect and monitor blood samples during treatment.

[0004] However, the calcium ion monitoring device is sealed to the pipeline in the CRRT process. Blood samples are drawn into the detection pool and monitored by the detection device. After the detection is completed, the sample inside the detection pool is discharged, but there will still be sample residue in the detection pool, which may interfere with the accuracy of subsequent monitoring results. Especially when testing samples from different time periods or with different properties, the residual substances may cause cross-contamination and other problems. Therefore, a calcium concentration monitoring device for CRRT with a cleaning detection pool function is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a calcium concentration monitoring device specifically for CRRT, which solves the problems mentioned in the background art by setting up a liftable cleaning mechanism to clean the residual sample inside the detection pool.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A calcium concentration monitoring device specifically designed for CRRT (Continuous Respiratory Temperature Reduction) consists of a main body and a detection chamber housing, used for monitoring samples.

[0008] It includes a detection pool, which is located inside the outer shell of the detection chamber. The external sample is drawn into the detection pool through the sampling mechanism and placed there for the instrument body to monitor.

[0009] Waste liquid collection tank, used to collect waste samples after monitoring;

[0010] It also includes a cleaning mechanism for cleaning up residual samples inside the testing pool.

[0011] Preferably, a cleaning agent tank is provided inside the outer shell of the detection chamber, which is connected in communication with the detection pool. The cleaning agent tank is connected to a liquid filling tube on the side wall outside the outer shell of the detection chamber, and a removable sealing plug is provided inside it.

[0012] The cleaning facility includes:

[0013] The cleaning brush, which rotates and is installed inside the detection pool, is used to clean the sample containing waste material inside the detection pool.

[0014] It also includes a rotating assembly for driving the cleaning brush to rotate inside the detection pool.

[0015] Preferably, the rotating assembly includes a fixed plate, the cleaning brush is fixedly disposed at the bottom of the fixed plate, and the top of the fixed plate passes through the top cover and is keyed to the output shaft of the rotary motor disposed above the top cover.

[0016] Preferably, the outer surface of the fixing plate that contacts the top cover is provided with a locking block, and the inner wall of the top cover that contacts the fixing plate is provided with a locking groove corresponding to the locking block, for locking and placing the locking block.

[0017] Preferably, the bottom end of the top cover has a notch for fixing the plate inside to drive the cleaning brush to rotate.

[0018] Preferably, a bracket is provided on the top surface of the top cover above the rotary motor, and the top surface of the bracket is fixedly installed with the working end of the miniature telescopic rod, which is fixedly installed on the inner top surface of the detection chamber shell.

[0019] Preferably, the sampling mechanism includes an external connector, which is disposed on the side wall of the detection chamber housing and is used for a sealed connection with an external connecting tube;

[0020] A cleaning agent tank is located below the external connector. The top of the cleaning agent tank, located inside the outer shell of the detection chamber, is connected to a micro-liquid pump via a connecting pipe. The end of the micro-liquid pump is connected to a spherical cover. The end of the external connector, located inside the outer shell of the detection chamber, is connected to a micro-diaphragm pump via a pipe. The micro-diaphragm pump is connected to the spherical cover, and the spherical cover is connected to the detection pool via a pipe.

[0021] Preferably, the spherical cover has a hemisphere inside for rotatable adjustment of the flow direction inside the spherical cover.

[0022] Preferably, a switch valve is provided at the bottom of the detection pool, and the switch valve is connected in communication with the waste liquid collection tank.

[0023] Compared with the prior art, the beneficial effects of this utility model are:

[0024] This invention features a liftable cleaning mechanism that cleans residual samples inside the testing pool. A rotating motor drives a fixed plate to rotate, causing a cleaning brush to scrub the sample residue on the inner wall of the testing pool. Simultaneously, a micro-pump draws cleaning agent from a tank into the testing pool, allowing for thorough scrubbing of the semi-fluid sample on the inner wall, ensuring efficient cleaning. After scrubbing, a valve is opened to discharge waste liquid into a waste collection tank for regular cleaning by testing personnel. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall front structure of this utility model;

[0026] Figure 2 This is a schematic diagram of the overall back structure of this utility model;

[0027] Figure 3 This is a schematic diagram of the internal structure of the detection chamber shell of this utility model;

[0028] Figure 4 This is a schematic diagram of the disassembled cleaning mechanism of this utility model;

[0029] Figure 5 This is a schematic diagram of the disassembled structure of the cleaning mechanism of this utility model;

[0030] Figure 6 This is a schematic diagram of the cross-sectional structure of the spherical cover of this utility model.

[0031] In the diagram: 1. Detector body; 2. Detection chamber shell; 3. External connector; 4. Cleaning agent tank; 5. Filling tube; 6. Waste liquid collection tank; 7. Connecting tube; 8. Miniature pump; 9. Spherical cover; 10. Miniature diaphragm pump; 11. Cleaning mechanism; 12. Top cover; 13. Bracket; 14. Miniature telescopic rod; 15. Rotary motor; 16. Slot; 17. Locking block; 18. Fixing plate; 19. Cleaning brush; 20. Detection pool; 21. Switch valve; 22. Hemisphere. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Please see Figures 1-6 This utility model provides a technical solution:

[0034] A calcium concentration monitoring device specifically designed for CRRT consists of a detector body 1 and a detection chamber shell 2, used for monitoring samples.

[0035] It includes a detection pool 20, which is located inside the outer shell 2 of the detection chamber. The external sample is drawn into the detection pool 20 by the sampling mechanism and placed in the sample so that the detector body 1 can monitor the sample.

[0036] Waste liquid collection tank 6 is used to collect waste samples after monitoring;

[0037] It also includes a cleaning mechanism 11 for cleaning up residual samples inside the detection pool 20.

[0038] The detection chamber housing 2 is equipped with a cleaning agent tank 4, which is connected to the detection pool 20. The cleaning agent tank 4 is located on the side wall outside the detection chamber housing 2 and is connected to a liquid filling tube 5. A removable sealing plug is installed inside the cleaning agent tank 4.

[0039] Cleaning agency 11 includes:

[0040] Cleaning brush 19 is rotated and installed inside the detection pool 20 to clean the sample containing waste material inside the detection pool 20.

[0041] It also includes a rotating assembly for driving the cleaning brush 19 to rotate inside the detection pool 20.

[0042] A switch valve 21 is installed at the bottom of the detection pool 20, and the switch valve 21 is connected in a through manner to the waste liquid collection tank 6.

[0043] The rotatable cleaning brush 19 rotates inside the detection pool 20. After the sample monitoring is completed, the switch valve 21 at the bottom of the detection pool 20 is opened. The sample inside the detection pool 20 enters the waste liquid collection tank 6 through the switch valve 21 and the pipe connected to the waste liquid collection tank 6. The waste liquid collection tank 6 is collected by the waste liquid collection tank 6. The waste liquid collection tank 6 is provided with a drain port on the side wall outside the detection chamber shell 2 to ensure that the waste liquid inside the waste liquid collection tank 6 is cleaned regularly. A flip-top cover is provided on the surface of the detection chamber shell 2 above the spherical cover 9 so that the testing personnel can adjust the hemisphere 22 inside the spherical cover 9.

[0044] After the waste liquid is discharged, the inspector opens the flip cover on the top of the outer shell 2 of the detection chamber, which is located above the spherical cover 9. This causes the hemisphere 22 to rotate to the side closer to the micro diaphragm pump 10, connecting the micro pump 8, the spherical cover 9, and the detection pool 20. At this time, the micro pump 8 draws the cleaning agent from the cleaning agent tank 4 into the detection pool 20 through the connecting pipe 7. At this time, the switch valve 21 is closed. By activating the micro telescopic rod 14, the bottom surface of the top cover 12 is driven to contact the top surface of the detection pool 20. At this time, the rotary motor 15 is activated. The rotary motor 15 is model ZWBPD006006. The cleaning brush 19 at the bottom of the fixed plate 18 is rotated by the rotating motor 15. The brush at the bottom of the cleaning brush 19 scrubs the sample residue on the inner wall of the detection pool 20. Under the action of the cleaning agent inside the detection pool 20, the sample is scrubbed. After scrubbing, the switch valve 21 is opened. The switch valve 21 is of model DN15-DN32. The waste liquid inside the detection pool 20 is discharged into the waste liquid collection tank 6 through the switch valve 21. The waste liquid collection tank 6 collects the cleaning waste liquid. The testing personnel clean the waste liquid inside the waste liquid collection tank 6 periodically through the drain hole on the side wall of the waste liquid collection tank 6.

[0045] The rotating assembly includes a fixed plate 18, a cleaning brush 19 fixedly disposed at the bottom of the fixed plate 18, and the top of the fixed plate 18 passes through the top cover 12 and is keyed to the output shaft of the rotary motor 15 disposed above the top cover 12.

[0046] A locking block 17 is provided on the outer surface of the fixed plate 18 that contacts the top cover 12. A slot 16 corresponding to the locking block 17 is provided on the inner wall of the top cover 12 that contacts the top output rod of the fixed plate 18. The slot 16 is used to lock the locking block 17. By providing a locking block 17 on the side wall that contacts the top output rod of the fixed plate 18 and the top cover 12, the locking block 17 rotates in the slot 16 on the inner wall of the top cover 12 that contacts the fixed plate 18. The slot 16 limits the locking block 17 to ensure the stability of the fixed plate 18 when it drives the cleaning brush 19 below to rotate inside the detection pool 20, so as not to tilt and cause equipment collision damage.

[0047] The bottom of the top cover 12 has a notch for fixing the plate 18 inside, which drives the cleaning brush 19 to rotate.

[0048] A bracket 13 is provided on the top surface of the top cover 12 above the rotary motor 15. The top surface of the bracket 13 is fixedly installed with the working end of the miniature telescopic rod 14. The miniature telescopic rod 14 is fixedly installed on the inner top surface of the detection chamber shell 2.

[0049] A miniature telescopic rod 14 is fixedly installed on the inner top surface of the outer shell 2 of the detection chamber. The working end of the miniature telescopic rod 14 is fixedly installed on the bracket 13 on the top of the top cover 12. The model of the miniature telescopic rod 14 is YXN016. The top cover 12 is raised and lowered by the miniature telescopic rod 14. When the sample inside the detection pool 20 is being tested, the cleaning brush 19 at the bottom of the top cover 12 is located above the detection pool 20 and does not contact the detection pool 20. When it is necessary to clean the residual sample inside the detection pool 20, the miniature telescopic rod 14 drives the top cover 12 to descend, so that the cleaning brush 19 contacts the inner wall of the detection pool 20 and the inner wall of the detection pool 20 is cleaned by the cleaning brush 19.

[0050] The sampling mechanism includes an external connector 3, which is disposed on the side wall of the outer shell 2 of the detection chamber and is used for a sealed connection with an external connecting tube.

[0051] The cleaning agent tank 4 is located below the external connector 3. The top of the cleaning agent tank 4, located inside the outer shell 2 of the detection chamber, is connected to the micro liquid pump 8 via the connecting pipe 7. The end of the micro liquid pump 8 is connected to the spherical cover 9. The end of the external connector 3, located inside the outer shell 2 of the detection chamber, is connected to the micro diaphragm pump 10 via a pipe. The micro diaphragm pump 10 is connected to the spherical cover 9, and the spherical cover 9 is connected to the detection pool 20 via a pipe.

[0052] The spherical cover 9 has a rotating hemisphere 22 inside, which is used to adjust the flow direction inside the spherical cover 9.

[0053] Finally, a miniature diaphragm pump 10 is installed at the end of the external connector 3 located inside the outer shell 2 of the detection chamber. It is connected to a miniature liquid pump 8 via a connecting pipe 7 at the top of the cleaning agent tank 4. Both the miniature liquid pump 8 and the miniature diaphragm pump 10 are connected to a spherical cover 9, which is connected to the detection cell 20 via a pipe. When sample monitoring is required, the hemisphere 22 inside the spherical cover 9 rotates to the side closer to the miniature liquid pump 8. At this time, the connecting pipe 7 is not connected to the spherical cover 9, and the miniature diaphragm pump 10 is connected to the detection cell 20 through the spherical cover 9. The miniature diaphragm pump 10 draws the sample connected to the external connector 3 into the detection cell 20, where it is monitored by the detector body 1. Calcium ion detection instruments are widely used in clinical diagnosis, water quality monitoring, and scientific research experiments. Their core purpose is to accurately determine the concentration of calcium ions in samples. Currently, mainstream detection principles include ion-selective electrode method, spectroscopic analysis method, and atomic absorption spectrometry, each with its own characteristics and suitable for different detection scenarios. In the CRRT-specific calcium concentration monitoring device, the ion-selective electrode method and the spectral analysis method are mainly used. The spectral analysis method is used to monitor the sample inside the detection cell 20. After the monitoring is completed, the data is displayed on the display screen on the top of the detector body 1 so that the testing personnel can read the data.

[0054] After monitoring is completed, the testing personnel flip the flap on the surface of the outer shell 2 of the testing chamber to rotate the hemisphere 22 inside the spherical cover 9 to the side closer to the micro diaphragm pump 10. At this time, the cleaning agent tank 4 is connected to the testing pool 20 through the connecting pipe 7, the micro pump 8 and the spherical cover 9. The switch valve 21 is opened, and the sample inside the testing pool 20 is discharged into the waste liquid collection tank 6 through the switch valve 21. After the sample is discharged, the switch valve 21 is closed, and the micro pump 8 draws the cleaning agent inside the cleaning agent tank 4 into the testing pool 20 through the spherical cover 9. At this time, the micro telescopic rod 14 drives the top cover 12 to descend, allowing the cleaning brush 19 to enter the testing pool 20. The rotary motor 15 is started to drive the cleaning brush 19 to rotate, and the cleaning brush 19 brushes the sample residue on the inner wall of the testing pool 20. After brushing, the waste liquid from brushing is discharged into the waste liquid collection tank 6 through the switch valve 21. The testing personnel can periodically clean the waste liquid collected inside the waste liquid collection tank 6 through the drain hole set on the side wall of the waste liquid collection tank 6.

[0055] The working principle of the miniature liquid pump 8 is to use the rotation of the screw to draw in and discharge liquid. The middle screw of the miniature diaphragm pump is the driving screw, which is driven by the prime mover, while the two screws on both sides are driven screws, which rotate in the opposite direction to the driving screw. Both the driving and driven screws have double-start threads. Due to the meshing of the screws and the tight fit between the screws and the inner wall of the bushing, one or more sealed spaces are formed between the suction port and the discharge port of the miniature diaphragm pump. As the screws rotate and mesh, these sealed spaces are continuously formed at the suction end of the pump, sealing the liquid in the suction chamber into them, and continuously pushing it from the suction chamber along the screw axis to the discharge end, continuously discharging the liquid sealed in each space, much like a nut being continuously pushed forward as the thread rotates.

[0056] The detector body 1 provides power to the micro liquid pump 8, micro diaphragm pump 10, micro telescopic rod 14 and rotary motor 15. The detector body 1 is also linearly connected to the micro liquid pump 8, micro diaphragm pump 10, micro telescopic rod 14 and rotary motor 15 respectively. The opening and closing of the micro liquid pump 8, micro diaphragm pump 10, micro telescopic rod 14 and rotary motor 15 are controlled by the built-in program of the detector body 1.

[0057] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A calcium concentration monitoring device for CRRT, comprising a detector body (1) and a detection chamber shell (2), used for monitoring samples, characterized in that: Includes a detection pool (20), which is located inside the outer shell (2) of the detection chamber. The external sample is drawn into the detection pool (20) by the sampling mechanism and placed in the sample so that the detector body (1) can monitor the sample. Waste liquid collection box (6) is used to collect waste samples after monitoring; It also includes a cleaning mechanism (11) for cleaning up residual samples inside the detection pool (20).

2. The calcium concentration monitoring device for CRRT as described in claim 1, characterized in that: The detection chamber housing (2) is provided with a cleaning agent tank (4) inside, which is connected to the detection pool (20). The cleaning agent tank (4) is located on the side wall outside the detection chamber housing (2) and is connected to a liquid filling tube (5). A removable sealing plug is provided inside the cleaning agent tank (4). The cleaning mechanism (11) includes: Cleaning brush (19) is rotated and installed inside the detection pool (20) to clean the sample containing waste material inside the detection pool (20); It also includes a rotating assembly for driving the cleaning brush (19) to rotate inside the detection pool (20).

3. The calcium concentration monitoring device for CRRT as described in claim 2, characterized in that: The rotating assembly includes a fixed plate (18), the cleaning brush (19) is fixedly disposed at the bottom of the fixed plate (18), and the top end of the fixed plate (18) passes through the top cover (12) and is keyed to the output shaft of the rotary motor (15) disposed above the top cover (12).

4. A calcium concentration monitoring device for CRRT as described in claim 3, characterized in that: The outer surface of the fixing plate (18) that contacts the top cover (12) is provided with a locking block (17), and the inner wall of the top cover (12) that contacts the fixing plate (18) is provided with a locking groove (16) corresponding to the locking block (17) for locking and placing the locking block (17).

5. A calcium concentration monitoring device for CRRT as described in claim 4, characterized in that: The bottom end of the top cover (12) has a notch for fixing the plate (18) inside it to drive the cleaning brush (19) to rotate.

6. A calcium concentration monitoring device for CRRT as described in claim 5, characterized in that: The top surface of the top cover (12) is provided with a bracket (13) above the rotary motor (15). The top surface of the bracket (13) is fixedly installed with the working end of the micro telescopic rod (14). The micro telescopic rod (14) is fixedly installed on the inner top surface of the detection chamber shell (2).

7. A calcium concentration monitoring device for CRRT as described in claim 1, characterized in that: The sampling mechanism includes an external connector (3), which is disposed on the side wall of the outer shell (2) of the detection chamber and is used for sealed connection with an external connecting pipe; A cleaning agent tank (4) is located below the external connector (3). The top of the cleaning agent tank (4) located inside the detection chamber shell (2) is connected to a micro liquid pump (8) via a connecting pipe (7). The end of the micro liquid pump (8) is connected to a spherical cover (9). The end of the external connector (3) located inside the detection chamber shell (2) is connected to a micro diaphragm pump (10) via a pipe. The micro diaphragm pump (10) is connected to the spherical cover (9) in a through connection. The spherical cover (9) is connected to the detection pool (20) in a through connection via a pipe.

8. A calcium concentration monitoring device for CRRT as described in claim 7, characterized in that: The spherical cover (9) is provided with a hemisphere (22) for rotating inside, which is used to adjust the flow direction inside the spherical cover (9).

9. A calcium concentration monitoring device for CRRT as described in claim 7, characterized in that: The bottom of the detection pool (20) is provided with a switch valve (21), which is connected in a through manner to the waste liquid collection tank (6).

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