Hemodialysis concentrate B liquid preparation system

Abstract

The utility model discloses a hemodialysis concentrate B liquid preparation system, which relates to the technical field of solution preparation, and comprises a liquid preparation tank and a support frame, the liquid preparation tank is fixedly connected to the upper part of the support frame, the lower part of the liquid preparation tank is fixedly communicated with a liquid outlet pipe, a valve is arranged on the liquid outlet pipe, and an electric heating plate is arranged in the liquid preparation tank. The outer wall, close to the upper portion, of the liquid preparation tank fixedly communicates with a water inlet pipe, a sealing cover is inserted into the water inlet pipe, the upper portion of the liquid preparation tank is fixedly connected with a driving motor, a conductivity sensor probe monitors the conductivity value of the liquid B in real time, and the conductivity value reflects the concentration of the liquid B; whether the concentration of the hemodialysis concentrate B liquid reaches the preset standard or not can be accurately judged through the conductivity sensor detection head, the tedious operation that shutdown sampling is needed, and bicarbonate ions are detected through a titration method is avoided, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a hemodialysis concentrate B liquid preparation system. Background Art

[0002] Hemodialysis artificially removes toxic waste, water, and salt that accumulate in patients with renal failure. Dialysate, a crucial component of hemodialysis, corrects electrolyte and acid-base imbalances and removes metabolic waste.

[0003] Hemodialysis is one of the renal replacement therapies for patients with acute and chronic renal failure, and hemodialysis concentrate B solution (abbreviated as B solution) is an important component of the hemodialysis process. The component of hemodialysis concentrate B solution is usually a single sodium bicarbonate. The process for producing hemodialysis concentrate B solution is to stir and fully dissolve a certain amount of sodium bicarbonate in a liquid mixing tank, then sample the intermediate product, send it to quality inspection for content testing, and fill and package it after passing the test. In order to determine whether the concentration of hemodialysis concentrate B solution meets the preset standard, the titration method is generally used to detect bicarbonate ions. However, during the detection process, personnel and machines are on standby, which reduces production efficiency.

[0004] In view of this, the present invention provides a hemodialysis concentrate B solution preparation system. Utility Model Content

[0005] In view of the deficiencies in the prior art, the present invention provides a hemodialysis concentrate B solution preparation system to solve the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] A hemodialysis concentrate B liquid dispensing system includes a dispensing tank and a support frame. The dispensing tank is fixedly connected to the upper part of the support frame. The lower part of the dispensing tank is fixedly connected to a liquid outlet pipe, a valve is provided on the liquid outlet pipe, an electric heating plate is provided inside the dispensing tank, an outer wall of the dispensing tank near the upper part is fixedly connected to a water inlet pipe and a feed pipe, a sealing cover is plugged into the water inlet pipe, a driving motor is fixedly connected to the upper part of the dispensing tank, an output shaft of the driving motor passes through one end of the top of the inner cavity of the dispensing tank and is fixedly connected to a stirring shaft, a spiral stirring blade is fixedly connected to the outer surface of the stirring shaft, and a temperature sensor is fixedly connected to the inner surface of the dispensing tank. A device, a display screen is fixedly connected to the support frame, a flat plate is fixedly connected to the outer surface of the liquid mixing tank on the side close to the display screen, a conductivity sensor probe is inserted on the flat plate, and a through hole for the conductivity sensor probe to pass through is provided on the flat plate and the liquid mixing tank 1, the temperature sensor and the conductivity sensor probe are both electrically connected to the display screen, a cover plate is rotatably connected to the side of the flat plate away from the liquid mixing tank, a screw hole plate is fixedly connected to the side of the cover plate corresponding to the flat plate, a sealing ring is fixedly connected to the side of the cover plate close to the flat plate, and a sealing gasket is fixedly connected to the side of the conductivity sensor probe away from the liquid mixing tank.

[0008] Preferably, a circular groove is provided on the flat plate, and the circular groove is used to accommodate the sealing ring and the sealing gasket, and a through groove is provided on the cover plate for allowing the wires of the conductivity sensor detection head to pass through.

[0009] Preferably, the outer surface of the stirring shaft is fixedly connected to a scraper rod, the outer surface of the liquid mixing tank near the upper part is threadedly connected to a threaded rod, one end of the threaded rod extending to the inside of the liquid mixing tank is rotatably connected to a sliding frame, and a sliding block is slidably connected to the sliding frame.

[0010] Preferably, the upper surface of the sliding block is rotatably connected to a rotating wheel, the lower surface of the sliding block is fixedly connected to two impact balls, and the outer surface of the stirring shaft corresponding to the rotating wheel is fixedly connected to a four-corner cam.

[0011] Preferably, a support spring is fixedly connected between the sliding block and the inner wall of the sliding frame, and a telescopic rod is fixedly connected between the sliding frame and the inner wall of the liquid mixing tank.

[0012] Preferably, two U-shaped rods are provided in the middle portion of the scraper rod, which are used to avoid contact with the temperature sensor and the conductivity sensor detection head when rotating along with the stirring shaft.

[0013] The utility model provides a hemodialysis concentrate B solution preparation system with the following beneficial effects:

[0014] The temperature sensor can monitor the temperature in real time and display it on the display screen. Based on the monitored temperature, the correspondence between temperature and conductivity can be used. With the conductivity value of 25°C as the benchmark, the conductivity qualified range of B solution (52±5% ms / cm) can be preset. The conductivity sensor probe monitors the conductivity value of B solution in real time. The conductivity value reflects the concentration of B solution. The conductivity sensor probe can accurately determine whether the concentration of hemodialysis concentrate B solution meets the preset standard, avoiding the need to stop the machine for sampling and the tedious operation of using titration method to detect bicarbonate ions, thereby improving production efficiency.

[0015] The sealing gasket and the sealing ring can effectively seal the position of the conductivity sensor probe inserted into the flat plate. When a new batch of B solution of hemodialysis concentrate needs to be prepared later, the bolts installed on the screw hole plate can be removed and the cover can be rotated downward to open it. The conductivity sensor probe can be wiped and cleaned, or a damaged conductivity sensor probe can be replaced to avoid the previous batch of B solution remaining on the conductivity sensor probe, thereby ensuring that the conductivity sensor probe remains clean when detecting different batches of B solution.

[0016] As the four-corner cam continues to rotate, the impact ball will intermittently hit the outer wall of the stirring shaft. The vibration can speed up the discharge of the solution adhering to the stirring shaft and the spiral stirring blades, reduce the solution residue adhering to the spiral stirring blades, and effectively collect the solution remaining on the spiral stirring blades and the inner wall of the liquid preparation tank, thereby reducing the waste of preparing hemodialysis concentrate B solution. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0018] Figure 2 For this utility model Figure 1 Schematic diagram of the enlarged structure of area A in the middle;

[0019] Figure 3 This is a schematic diagram of the internal structure of the liquid dispensing tank of the utility model after cutting;

[0020] Figure 4 For this utility model Figure 3 Schematic diagram of the enlarged structure of the middle B area;

[0021] Figure 5 This is a schematic diagram of the installation structure of the support spring, sliding block and sliding frame of the utility model.

[0022] In the picture:

[0023] 1. Liquid dispensing tank; 2. Support frame; 3. Liquid outlet pipe; 4. Water inlet pipe; 5. Drive motor; 6. Stirring shaft; 7. Temperature sensor; 21. Display screen; 22. Flat panel; 23. Conductivity sensor probe; 24. Cover plate; 25. Screw hole plate; 26. Sealing ring; 27. Sealing gasket; 31. Scraper rod; 32. Threaded rod; 33. Sliding frame; 34. Sliding block; 35. Rotating wheel; 36. Impact ball; 37. Four-corner cam; 38. Support spring; 39. Telescopic rod; 40. Feeding pipe. DETAILED DESCRIPTION

[0024] Embodiments of the present utility model:

[0025] See also Figures 1 to 4 , a hemodialysis concentrate B liquid dispensing system includes a dispensing tank 1 and a support frame 2. The dispensing tank 1 is fixedly connected to the upper part of the support frame 2. The lower part of the dispensing tank 1 is fixedly connected to a liquid outlet pipe 3, a valve is provided on the liquid outlet pipe 3, and the liquid outlet pipe 3 is arranged to be inclined. The outer wall of the dispensing tank 1 near the upper part is fixedly connected to a water inlet pipe 4 and a feed pipe 40, and a sealing cover is plugged into the water inlet pipe 4. The upper part of the dispensing tank 1 is fixedly connected to a driving motor 5, and the output shaft of the driving motor 5 passes through one end of the top of the inner cavity of the dispensing tank 1 and is fixedly connected to a stirring shaft 6. The outer surface of the stirring shaft 6 is fixedly connected to a spiral stirring blade, and the inner surface of the dispensing tank 1 is fixedly connected to a temperature sensor 7. A display screen 21 is fixedly connected to the support frame 2, and a control module is installed in the display screen 21. The outer surface of the dispensing tank 1 near the display screen 21 is fixedly connected to a tablet 22. The tablet 2 2 is provided with a conductivity sensor probe 23, and a through hole for the conductivity sensor probe 23 is provided on the flat plate 22 and the liquid dispensing tank 1. The temperature sensor 7 and the conductivity sensor probe 23 are both electrically connected to the display screen 21. The side of the flat plate 22 away from the liquid dispensing tank 1 is rotatably connected to the cover plate 24, and the side of the cover plate 24 corresponding to the flat plate 22 is fixedly connected to a screw hole plate 25, which can be fixed to the flat plate 22 by bolts and the screw hole plate 25. The cover plate 24 is fixedly connected to the flat plate 22 on a side close to the flat plate 22. The side of the cover plate 24 close to the flat plate 22 is fixedly connected to a sealing ring 26, and the side of the conductivity sensor probe 23 away from the liquid dispensing tank 1 is fixedly connected to a sealing gasket 27. A circular groove is provided on the flat plate 22, which is used to accommodate the sealing ring 26 and the sealing gasket 27, and a through groove for the wire of the conductivity sensor probe 23 is provided on the cover plate 24.

[0026] The outer surface of the stirring shaft 6 is fixedly connected to a scraper rod 31, and the outer surface of the liquid dispensing tank 1 near the upper part is threadedly connected to a threaded rod 32. The threaded rod 32 extends to one end of the interior of the liquid dispensing tank 1 and is rotatably connected to a sliding frame 33. A sliding block 34 is slidably connected to the sliding frame 33. The upper surface of the sliding block 34 is rotatably connected to a rotating wheel 35, and the lower surface of the sliding block 34 is fixedly connected to two impact balls 36. The outer surface of the stirring shaft 6 corresponding to the rotating wheel 35 is fixedly connected to a four-corner cam 37, a support spring 38 is fixedly connected between the sliding block 34 and the inner wall of the sliding frame 33, and a telescopic rod 39 is fixedly connected between the sliding frame 33 and the inner wall of the liquid dispensing tank 1. Two U-shaped rods are provided in the middle part of the scraper rod 31, which are used to avoid contacting the temperature sensor 7 and the conductivity sensor detection head 23 when rotating with the stirring shaft 6.

[0027] The following is the entire working process and working principle of the above embodiment:

[0028] When used for the first time, the interior of the liquid dispensing tank 1 is empty, and the conductivity sensor probe 23 is inserted into the flat plate 22. At this time, the sealing gasket 27 on the conductivity sensor probe 23 is embedded in the circular groove on the flat plate 22. Then, the cover plate 24 is rotated to gradually fit on the flat plate 22, so that the sealing ring 26 on the cover plate 24 is also embedded in the circular groove of the flat plate 22, so that the cover plate 24 is tightly pressed and fit on the sealing gasket 27, and then the cover plate 24 is fixed to the flat plate 22 by bolts, so as to achieve the limit fixation of the conductivity sensor probe 23 on the flat plate 22, and the through groove on the cover plate 24 can be used for the electric The line passes through, and the sealing gasket 27 cooperates with the sealing ring 26 to effectively seal the position where the flat plate 22 is inserted into the conductivity sensor detection head 23. Later, when a new batch of B solution of hemodialysis concentrate needs to be prepared, the bolts installed on the screw hole plate 25 can be removed, and then the cover plate 24 can be rotated downward to open it, so that the conductivity sensor detection head 23 can be wiped and cleaned, or the damaged conductivity sensor detection head 23 can be replaced, so as to avoid the conductivity sensor detection head 23 from retaining the previous batch of B solution, thereby ensuring that the conductivity sensor detection head 23 remains clean when detecting different batches of B solution.

[0029] After that, the sealing cover on the water inlet pipe 4 can be opened, and pure water can be poured into the liquid dispensing tank 1, and sodium bicarbonate can be poured into the liquid dispensing tank 1 from the feed pipe 40. (The pure water and sodium bicarbonate in this article can be automatically discharged into the liquid dispensing tank 1 by external equipment or manually poured in, which is not limited here), and then the drive motor 5 is turned on. The output shaft of the drive motor 5 drives the stirring shaft 6 and the spiral stirring blade to rotate synchronously to stir the B liquid inside the liquid dispensing tank 1. During the mixing process of the B liquid, the temperature can be monitored in real time through the display screen 21. The control module pre-stores the water temperature-conductivity corresponding parameter data. According to the monitored temperature, the corresponding relationship between temperature and conductivity can be used to display the conductivity value at 25°C, and the conductivity qualified range of the B liquid is preset (52±5%). ms / cm), judging whether the conductivity value is within the preset range can directly determine whether the concentration of the mixed B solution is qualified. When the conductivity value is greater than the qualified range, it means that the concentration of B solution is too high, and pure water needs to be added to reduce the solution concentration; when the conductivity value is less than the qualified range, it means that the concentration of B solution is too low, and sodium bicarbonate needs to be added to increase the solution concentration; the conductivity sensor detection head 23 monitors the conductivity value of B solution in real time, and the conductivity value reflects the concentration of B solution. The conductivity sensor detection head 23 can accurately determine whether the concentration of the hemodialysis concentrate B solution meets the preset standard, avoiding the need to stop sampling and the tedious operation of using titration method to detect bicarbonate ions, thereby improving production efficiency.

[0030] After the hemodialysis concentrate B liquid is prepared to a qualified concentration, the valve on the liquid outlet pipe 3 can be opened to discharge the prepared hemodialysis concentrate B liquid. After a period of discharge, the valve can be closed first, and the drive motor 5 can be turned on to rotate continuously. The drive motor 5 drives the stirring shaft 6 and the scraper 31 to rotate synchronously. The scraper 31 can scrape the inner wall of the liquid dispensing tank 1 to scrape off the solution adhering to the inner wall of the liquid dispensing tank 1. When the stirring shaft 6 rotates, it also drives the four-corner cam 37 to rotate. When the four-corner cam 37 rotates, its protruding part squeezes the runner 35 to rotate and drives the sliding block 34 to move in the sliding frame 33. The support spring 38 slides inward and squeezes the support spring 38. When the protruding part of the four-corner cam 37 no longer squeezes the runner 35, the support spring 38 resets and rebounds to push the sliding block 34 and the impact ball 36 toward the stirring shaft 6. As the four-corner cam 37 continues to rotate, the impact ball 36 will intermittently hit the outer wall of the stirring shaft 6. Through vibration, the solution adhering to the stirring shaft 6 and the spiral stirring blade can be accelerated to discharge, reducing the solution residue adhering to the spiral stirring blade. The solution remaining on the spiral stirring blade and the inner wall of the liquid preparation tank 1 can be effectively collected, reducing the waste of preparing hemodialysis concentrate B solution.

[0031] It should be noted that, during the preparation process, the sliding frame 33 can be driven to move toward the inner wall of the liquid preparation tank 1 by rotating the threaded rod 32, and the telescopic rod 39 can be compressed to move the sliding frame 33, the sliding block 34 and the impact ball 36 away from the four-corner cam 37. In this way, when the hemodialysis concentrate B liquid is initially prepared, the impact ball 36 will not be driven to hit the stirring shaft 6 to increase the discharge speed of the adhered solution. When discharging the prepared solution, it is only necessary to manually rotate the threaded rod 32 so that the sliding frame 33 drives the impact ball 36 to move closer to the stirring shaft 6, which increases the flexibility of use.

[0032] The conductivity sensor detection head 23 and the conductivity tester are also commonly used in the prior art and can be purchased directly.

[0033] To sum up, the technical problems solved, technical solutions and beneficial effects obtained by the present invention are clear and there are no ambiguous technical problems.

[0034] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hemodialysis concentrate B liquid preparation system, comprising a liquid preparation tank (1) and a support frame (2), characterized in that: The liquid dispensing tank (1) is fixedly connected to the upper part of the support frame (2), the lower part of the liquid dispensing tank (1) is fixedly connected to a liquid outlet pipe (3), a valve is provided on the liquid outlet pipe (3), the outer wall of the liquid dispensing tank (1) near the upper part is fixedly connected to a water inlet pipe (4) and a feed pipe (40), the upper part of the liquid dispensing tank (1) is fixedly connected to a drive motor (5), the output shaft of the drive motor (5) passes through one end of the top of the inner cavity of the liquid dispensing tank (1) and is fixedly connected to a stirring shaft (6), the outer surface of the stirring shaft (6) is fixedly connected to a spiral stirring blade, and the liquid dispensing tank (1) is fixedly connected to the outer surface of the stirring shaft (6). 1) is fixedly connected to the inner surface of the support frame (2), a display screen (21) is fixedly connected to the outer surface of the liquid dispensing tank (1) on the side close to the display screen (21), a flat plate (22) is fixedly connected, a conductivity sensor probe (23) is inserted into the flat plate (22), and a through hole for the conductivity sensor probe (23) to pass through is provided on both the flat plate (22) and the liquid dispensing tank (1), and the temperature sensor (7) and the conductivity sensor probe (23) are both electrically connected to the display screen (21).

2. A hemodialysis concentrate B solution preparation system according to claim 1, characterized in that: The side of the flat plate (22) away from the liquid dispensing tank (1) is rotatably connected to the cover plate (24), and the side of the cover plate (24) corresponding to the flat plate (22) is fixedly connected to the screw hole plate (25). The side of the cover plate (24) close to the flat plate (22) is fixedly connected to the sealing ring (26), and the side of the conductivity sensor detection head (23) away from the liquid dispensing tank (1) is fixedly connected to the sealing gasket (27). A circular groove is provided on the flat plate (22), and the circular groove is used to accommodate the sealing ring (26) and the sealing gasket (27), and a through groove is opened on the cover plate (24) for allowing the wire of the conductivity sensor detection head (23) to pass through.

3. A hemodialysis concentrate B solution preparation system according to claim 1, characterized in that: The outer surface of the stirring shaft (6) is fixedly connected to a scraper rod (31), the outer surface of the liquid dispensing tank (1) near the upper portion is threadedly connected to a threaded rod (32), one end of the threaded rod (32) extending into the interior of the liquid dispensing tank (1) is rotatably connected to a sliding frame (33), and a sliding block (34) is slidably connected inside the sliding frame (33).

4. A hemodialysis concentrate B solution preparation system according to claim 3, characterized in that: The upper surface of the sliding block (34) is rotatably connected to a rotating wheel (35), the lower surface of the sliding block (34) is fixedly connected to two impact balls (36), and the outer surface of the stirring shaft (6) corresponding to the rotating wheel (35) is fixedly connected to a four-corner cam (37).

5. A hemodialysis concentrate B solution preparation system according to claim 4, characterized in that: A support spring (38) is fixedly connected between the sliding block (34) and the inner wall of the sliding frame (33), and a telescopic rod (39) is fixedly connected between the sliding frame (33) and the inner wall of the liquid distribution tank (1).

6. A hemodialysis concentrate B solution preparation system according to claim 5, characterized in that: Two U-shaped rods are provided in the middle of the scraper rod (31), which are used to avoid contact with the temperature sensor (7) and the conductivity sensor detection head (23) when rotating along with the stirring shaft (6).

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