Plasma thawing constant-temperature water bath for blood transfusion department

Abstract

The application discloses a plasma thawing constant-temperature water bath pot for blood transfusion department and belongs to the field of medical devices, which comprises a device main body, a pot body arranged on the device main body, and a placing assembly arranged on the pot body and used for placing a plasma bag in an unfolded and flat state in the pot body, so that each part of the bag body can be fully and uniformly contacted with heated water. A heat preservation sleeve is arranged on the pot body and used for heat preservation. An air flow assembly is arranged on the heat preservation sleeve and used for disturbing water flow in the pot body and assisting the plasma bag in being heated. The placing assembly is fixed in the unfolded and flat state by the structure of the placing assembly, so that the heat dead angle formed by folds and stacking of the bag body is eliminated, the surface of the bag body is contacted with the constant-temperature water in the pot body without omission, and the melting speed difference caused by insufficient local contact is avoided.

Description

Technical Field

[0001] This invention relates to the field of medical devices, and more specifically, to a constant temperature water bath for melting blood transfusion plasma. Background Technology

[0002] In clinical blood transfusion therapy, frozen plasma needs to be thawed before it can be used for patient transfusion. The thawing process requires strict control of temperature and speed to ensure that the activity of effective components such as coagulation factors and albumin in the plasma is not destroyed. This process usually relies on special heating equipment, using water as a heat transfer medium to heat the frozen plasma to a suitable transfusion temperature. The core requirement is to ensure that the plasma is heated evenly and the temperature is stable, avoiding local overheating or incomplete thawing.

[0003] As an important blood product, the quality of plasma directly affects clinical treatment efficacy and patient medication safety. In emergency transfusion scenarios, rapid and high-quality plasma melting can buy valuable treatment time for patients; while in routine medical care, a stable melting process can prevent treatment failure or adverse reactions caused by plasma component denaturation.

[0004] In the existing technology, the equipment used for plasma melting has obvious defects in actual use. When the plasma bags are melted, they are prone to wrinkles and stacking due to improper placement, resulting in insufficient contact between different parts of the bag and the heating water, forming dead zones for heating. This leads to situations where some parts melt too quickly while others remain frozen, affecting the quality of the plasma. Summary of the Invention

[0005] In view of the obvious defects in the existing equipment used for plasma melting in actual use, when plasma bags are placed improperly during the melting process, wrinkles and stacking may occur, resulting in insufficient contact between different parts of the bag and the heating water, forming dead zones for heating, which in turn leads to situations where some parts melt too quickly and others remain frozen, affecting the quality of plasma. The purpose of this invention is to provide a constant temperature water bath for plasma melting in the blood transfusion department.

[0006] To solve the above problems, the present invention adopts the following technical solution:

[0007] A constant-temperature water bath for melting plasma in a blood transfusion department includes a pot body with a placement assembly mounted on it. A plasma bag is placed flat and extended on the placement assembly. An insulating sleeve is embedded around the pot body, and the bottom of the insulating sleeve and the pot body form a constant-temperature water bath space. The placement assembly and the plasma bag are located within this space. An airflow assembly is provided on the insulating sleeve to agitate the water flow within the water bath space. Optionally, the placement assembly includes a set of placement slots within the pot body. A lifting rod is slidably mounted within each slot. A placement frame is connected to the lifting rod via a swing assembly. The placement frame has a sliding groove, and a set of clamps is slidably mounted within the groove. A plasma bag is positioned between the clamps.

[0008] Optionally, a pair of clamps are threaded together with a bidirectional bolt, and the bidirectional bolt has a pair of threaded grooves with opposite directions.

[0009] Optionally, the insulation sleeve can be detachably fitted around the outside of the pot body, and the insulation sleeve wraps around the side wall of the pot body to reduce heat exchange between the pot body and the external environment.

[0010] Optionally, the airflow assembly includes an air inlet pipe fixedly installed on the insulation sleeve, an air pump connected to the end of the air inlet pipe away from the insulation sleeve, a set of air chambers opened inside the insulation sleeve, the air chambers being connected to each other through a connecting hole, an air outlet pipe fixedly installed on the insulation sleeve, an air outlet base fixedly installed on the air outlet pipe, and nozzles provided on the air outlet pipe and the air outlet base.

[0011] Optionally, the nozzle consists of several connecting bottom pipes, a rotating base, and aeration heads. The connecting bottom pipes are fixedly installed on the air outlet pipe and the air outlet base. The rotating base is rotatably installed on the connecting bottom pipes. A set of aeration heads is fixedly installed on the rotating base. When the aeration heads emit air, they can drive the rotating base to rotate.

[0012] Optionally, the connecting swing assembly includes a connecting groove formed on the lifting rod, a rotating shaft is fixedly installed on the placement frame, the rotating shaft is rotatably connected to the connecting groove, and a torsion spring sleeved on the rotating shaft is fixedly installed in the connecting groove.

[0013] Optionally, a synchronization component is provided inside the air outlet pipe, which is used to control the airflow to enter different air outlet bases and nozzles synchronously.

[0014] Optionally, the synchronization component includes a pair of venting rings slidably installed inside the vent pipe, a connecting piece fixedly installed on the venting ring, a blocking slider fixedly installed on the connecting piece, a spring fixedly installed on the blocking slider, and the other end of the spring fixedly installed on the inner wall of the vent pipe.

[0015] Optionally, the constant temperature water bath includes a main body, on which a pot body and a display are mounted, a heating switch and an airflow switch are mounted.

[0016] Compared with the prior art, the technical solution provided by this invention has at least the following beneficial effects:

[0017] In the above solution, by setting up a placement component, the placement component fixes the plasma bag in a flat and relaxed state through its own structure, eliminating the heat dead corners formed by bag wrinkles and stacking, and ensuring that the surface of the bag comes into full contact with the constant temperature water in the pot, thus avoiding differences in melting speed caused by insufficient local contact.

[0018] By setting up an airflow component, the airflow component generates water flow disturbance inside the pot, breaking the stillness of the water and ensuring that the water temperature in different areas of the pot remains consistent. At the same time, it accelerates heat exchange on the surface of the plasma bag, further improving the uniformity of heating, shortening the melting time, and ensuring that the plasma melts quickly and stably within the optimal temperature range of about 37°C, thus protecting the effective components of the plasma from damage. Attached Figure Description

[0019] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate embodiments of the invention and, together with the specification, further serve to explain the principles of the invention and enable those skilled in the art to practice and use the invention.

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the structure of the thermal insulation sleeve of the present invention;

[0022] Figure 3 This is a schematic diagram of the structure of the component placement in this invention;

[0023] Figure 4 This is a schematic diagram of the structure of the connecting swing assembly of the present invention;

[0024] Figure 5 This is a schematic diagram of the airflow assembly of the present invention;

[0025] Figure 6 This is a schematic diagram illustrating the fit between the air cavity and the connecting hole in this invention;

[0026] Figure 7 This is a schematic diagram of the synchronization component of the present invention;

[0027] Figure 8 For the present invention Figure 7 Schematic diagram at point A.

[0028] [Figure Labels]

[0029] 10. Main body of the equipment; 11. Pot body; 12. Display; 13. Heating switch; 14. Airflow switch;

[0030] 20. Component placement; 21. Placement slot; 22. Lifting rod; 23. Placement rack; 24. Slide rail; 25. Clamping plate; 26. Two-way bolt;

[0031] 30. Insulation sleeve;

[0032] 40. Airflow assembly; 41. Air inlet pipe; 42. Air chamber; 43. Connecting hole; 44. Air outlet pipe; 45. Air outlet base; 46. Nozzle; 461. Rotating base; 462. Aeration head; 463. Connecting bottom pipe;

[0033] 50. Connecting swing assembly; 51. Rotating shaft; 52. Torsion spring; 53. Connecting groove;

[0034] 60. Synchronization component; 61. Vent ring; 62. Connecting piece; 63. Sealing slider; 64. Spring.

[0035] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiments of the present invention. However, this is only for illustrative purposes and is not intended to limit the present invention to this specific structure, device and environment. Those skilled in the art can adjust or modify these devices and environments according to specific needs. Detailed Implementation

[0036] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. It should also be noted that, to make the embodiments more comprehensive, the following embodiments are the best and preferred embodiments, and those skilled in the art can use other alternative methods to implement some well-known technologies; moreover, the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit the present invention.

[0037] It should be noted that the use of terms such as "an embodiment," "an embodiment," "an exemplary embodiment," and "some embodiments" in the specification indicates that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the art.

[0038] Generally, terms can be understood at least partly from their use in context. For example, depending at least partly on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in a singular sense, or a combination of features, structures, or characteristics in a plural sense. Additionally, the term "based on" can be understood not necessarily to convey an exclusive set of factors, but rather, alternatively, depending at least partly on the context, to allow for the presence of other factors that are not necessarily explicitly described.

[0039] It is understood that the meanings of “on”, “above”, and “above” in this invention should be interpreted in the broadest manner, such that “on” means not only “directly on” something, but also includes the meaning of being “on” something with an intervening feature or layer, and that “above” or “above” means not only “on” something, but also includes the meaning of being “on” something without an intervening feature or layer.

[0040] Furthermore, spatially related terms such as “below,” “under,” “lower,” “above,” and “upper” are used herein for convenience to describe the relationship of one element or feature to one or more other elements or features, as illustrated in the accompanying drawings. Spatially related terms are intended to cover different orientations in the use or operation of the device other than those depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially related descriptive terms used herein can be interpreted similarly.

[0041] like Figures 1 to 8 As shown, this embodiment of the invention provides a constant temperature water bath for melting plasma in a blood transfusion department, including a main body 10, a pot body 11 on the main body 10, and a heat-insulating sleeve 30 embedded around the pot body. The bottom of the heat-insulating sleeve 30 and the circumference of the pot body 11 form a constant temperature water bath space. A placement component 20 and a plasma bag are located within the constant temperature water bath space. An airflow component 40 is provided on the heat-insulating sleeve 30, which agitates the water flow within the constant temperature water bath space. The placement component 20 places the plasma bag in a flat and relaxed state within the pot body 11, ensuring that all parts of the bag are in full and uniform contact with the heating water. The heat-insulating sleeve 30 insulates the pot body 11. The airflow component 40 is located on the heat-insulating sleeve 30 and agitates the water flow within the pot body 11 to assist in heating the plasma bag. The main body 10 provides the installation support foundation for the whole, and the pot body 11 serves as the core space for accommodating the heated water and plasma bags. The placement component 20 fixes the plasma bags in a flat and smooth state through its own structure, eliminating the heat dead corners formed by bag wrinkles and stacking, and ensuring that the surface of the bag comes into contact with the constant temperature water in the pot body 11 without any omissions, thus avoiding differences in melting speed caused by insufficient local contact.

[0042] like Figure 2 As shown, the insulation sleeve 30 is detachably fitted around the outer perimeter of the pot body 11. The detachable design of the insulation sleeve 30 facilitates installation, disassembly, cleaning, and maintenance, while also allowing for easy inspection of the pot body 11. The insulation sleeve 30 wraps around the side walls of the pot body 11, forming a closed, insulated space that prevents heat from being conducted to the outside through the side walls, reducing heat loss. By lowering the heat exchange efficiency, the water temperature inside the pot body 11 can quickly reach the set temperature and maintain it stably, avoiding water temperature fluctuations caused by changes in the external environment. This reduces the workload and energy consumption of the heating components and prevents plasma from undergoing component denaturation due to unstable water temperature, ensuring the quality of plasma melting.

[0043] like Figures 2-4 As shown, the placement assembly 20 includes a set of placement slots 21 opened in the pot body 11. A lifting rod 22 is slidably installed in the placement slots 21. A placement rack 23 is connected to the lifting rod 22 through a connecting swing assembly 50. A sliding groove 24 is opened on the placement rack 23. A set of clamps 25 is slidably installed in the sliding groove 24. A plasma bag is placed between the two clamps 25. The placement groove 21 provides installation and sliding guide space for the lifting rod 22. The lifting rod 22 can move up and down along the placement groove 21. The connecting swing assembly 50 allows the placement frame 23 to swing at a certain angle relative to the lifting rod 22, avoiding uneven heating caused by the plasma bag being in a fixed position for a long time. The sliding groove 24 on the placement frame 23 provides a sliding track for the clamping plate 25. A set of clamping plates 25 can move closer or further away from each other along the sliding groove 24 to clamp and fix the plasma bag, confining the plasma bag within the placement frame 23 and keeping it in a relaxed state. This prevents the plasma bag from shifting or stacking during the melting process, ensuring that the bag is always in full contact with the water, and improving the uniformity and stability of melting.

[0044] For example Figure 3 As shown, two clamping plates 25 are threadedly connected to both ends of a bidirectional bolt 26, with the threads at both ends of the bidirectional bolt 26 rotating in opposite directions. The bidirectional bolt 26 serves as the driving component for the clamping plates 25. A pair of oppositely oriented threaded grooves on its surface engage with the threads of the two clamping plates 25. When the bidirectional bolt 26 is rotated, due to the opposite thread directions, the two clamping plates 25 move synchronously in opposite directions along the sliding groove 24 (moving closer or further away simultaneously). This allows for precise adjustment of the clamping force and spacing of the plasma bag, adapting to plasma bags of different thicknesses and specifications. It ensures stable clamping while preventing excessive pressure that could damage the plasma bag. Furthermore, by precisely adjusting the spacing of the clamping plates 25, the plasma bag remains flat and extended, further ensuring uniform contact between all parts of the bag and the water, thus improving the melting effect.

[0045] like Figure 4As shown, the connecting swing assembly 50 includes a connecting groove 53 on the lifting rod 22, and a rotating shaft 51 is fixedly installed on the placement frame 23. The rotating shaft 51 is rotatably connected to the connecting groove 53, and a torsion spring 52 is fixedly installed in the connecting groove 53 and sleeved on the rotating shaft 51. The connecting groove 53 on the lifting rod 22 provides a rotating installation space for the rotating shaft 51. The cooperation between the rotating shaft 51 and the connecting groove 53 allows the placement frame 23 to rotate flexibly relative to the lifting rod 22. The torsion spring 52 sleeved on the rotating shaft 51 has an elastic reset function. When the placement frame 23 is disturbed by the water flow or the plasma bag is slightly shifted by its own weight, the torsion spring 52 can drive the placement frame 23 to reset through its own elastic force, maintaining the stability of the placement frame 23. At the same time, the placement frame 23 can swing slightly with the water flow, avoiding the heat dead corner caused by the plasma bag being in close contact with the placement frame 23 for a long time, so that the surface of the plasma bag is always in full contact with the water, further improving the heat uniformity and ensuring the melting effect.

[0046] like Figure 5 and Figure 6 As shown, the airflow assembly 40 includes an air inlet pipe 41 fixedly mounted on the insulation sleeve 30. An air pump is connected to the end of the air inlet pipe 41 furthest from the insulation sleeve 30. A set of air chambers 42 are formed inside the insulation sleeve 30, and the air chambers 42 are connected to each other through a connecting hole 43. An air outlet pipe 44 is fixedly mounted on the insulation sleeve 30, and an air outlet base 45 is fixedly mounted on the air outlet pipe 44. Nozzles 46 are provided on the air outlet pipe 44 and the air outlet base 45. The air pump provides a stable gas source for the airflow assembly 40. Gas enters the air chambers 42 inside the insulation sleeve 30 through the air inlet pipe 41. The connecting hole 43 keeps the gas pressure in each air chamber 42 balanced, ensuring that the gas is evenly distributed to each air outlet pipe 44. The gas outlet pipe 44 guides the gas to the gas outlet base 45, and then the gas is sprayed into the water in the pot body 11 through the nozzle 46. The gas forms bubbles in the water and rises, causing the surrounding water to flow and forming a turbulent water flow. This breaks the temperature stratification phenomenon when the water is still, and makes the water temperature in different areas of the pot body 11 quickly become uniform. At the same time, the flowing water can accelerate the heat transfer on the surface of the plasma bag, avoid the formation of local low temperature zones around the bag, shorten the melting time, and improve the uniformity and efficiency of plasma melting.

[0047] like Figure 8As shown, the nozzle 46 consists of several connecting bottom pipes 463, rotating bases 461, and aeration heads 462. The connecting bottom pipes 463 are fixedly installed on the air outlet pipe 44 and the air outlet base 45. The rotating base 461 is rotatably installed on the connecting bottom pipes 463. A set of aeration heads 462 is fixedly installed on the rotating base 461. When the aeration heads 462 emit air, they can drive the rotating base 461 to rotate. The connecting bottom pipe 463 provides installation support and gas passage for the rotating base 461 and the aeration head 462. Gas enters the aeration head 462 through the connecting bottom pipe 463 and is dispersed into fine bubbles through the air holes of the aeration head 462 and sprayed out. The reaction force generated when the bubbles are sprayed out drives the rotating base 461 to rotate around the connecting bottom pipe 463, which in turn drives a group of aeration heads 462 on it to make a circular motion, so that the bubbles can be evenly distributed in different areas of the pot body 11, rather than being concentrated in a single position. The rotating sprayed bubbles can form a stronger and more uniform water flow disturbance, further breaking the temperature stratification and static state of the water, allowing the water around the plasma bag to be continuously renewed, greatly improving the heat exchange efficiency, avoiding uneven local heating, ensuring that the melting speed of all parts of the plasma bag is consistent, and at the same time, the fine bubbles can also reduce the impact on the plasma bag and prevent the bag from breaking.

[0048] like Figure 6 and Figure 7 As shown, a synchronization component 60 is installed inside the air outlet pipe 44. The synchronization component 60 is used to control the airflow to enter different air outlet bases 45 and nozzles 46 synchronously. The synchronization component 60 includes a pair of ventilation rings 61 slidably installed inside the air outlet pipe 44. A connecting piece 62 is fixedly installed on the ventilation ring 61. A blocking slider 63 is fixedly installed on the connecting piece 62. One end of a spring 64 is fixedly installed on the blocking slider 63. The other end of the spring 64 is fixedly installed on the inner wall of the air outlet pipe 44. The air pump venting ring 61 can slide within the air outlet pipe 44. The connecting piece 62 fixes the venting ring 61 to the blocking slider 63. The spring 64 provides elastic support for the blocking slider 63. When gas enters the air outlet pipe 44, the gas pressure acts on the blocking slider 63, pushing the blocking slider 63 to slide against the elastic force of the spring 64. When the blocking slider 63 and the venting ring 61 slide, the connection between the air outlet pipe 44 and the nozzle 46 and the air outlet base 45 will be released, allowing the airflow to enter different nozzles 46, ensuring consistent gas flow within the nozzles 46, and achieving synchronous airflow distribution. This structure can automatically adapt to small fluctuations in air pump pressure, maintain the stability of the air output of each nozzle 46 through elastic adjustment, ensure the uniformity of water flow disturbance, and thus improve the consistency and reliability of plasma melting.

[0049] like Figure 1 and Figure 2As shown, the main body 10 of the device is equipped with a display 12, a heating switch 13, and an airflow switch 14. Specifically, the main body 10 is equipped with a heating element that heats the pot. The heating element is a conventional heating element, such as an electric heating tube. The heating switch 13 is electrically connected to the electric heating tube, and the airflow switch 14 is electrically connected to the air pump. More specifically, a temperature sensor is installed inside the pot 11, and the temperature sensor is electrically connected to the display 12. The display 12 shows the water temperature inside the pot 11 in real time, allowing operators to intuitively monitor the device's operating status and adjust relevant settings accordingly. The heating switch 13 controls the on / off state of the heating element. Operators can start or stop the heating function using the heating switch 13, and, in conjunction with the water temperature data displayed on the display 12, precisely control the water temperature inside the pot to the optimal melting temperature of approximately 37°C. The airflow switch 14 is used to control the start and stop of the airflow assembly 40. Operators can adjust the working state of the airflow assembly 40 through the airflow switch 14 according to the plasma melting requirements, realize the opening or closing of water flow disturbance, flexibly adapt to the melting requirements of different specifications of plasma bags, and improve the ease of operation and practicality of the equipment.

[0050] The working process of the constant temperature water bath for plasma melting in the blood transfusion department in this embodiment is as follows:

[0051] The operator first places 30 sets of insulation sleeves around the outside of the pot body 11, wrapping the side walls of the pot body 11 to form an insulation space and reduce heat loss. Then, the heating switch 13 is turned on to start the heating component, and the water in the pot body 11 begins to heat up. The display 12 shows the water temperature in real time, precisely controlling the water temperature in the pot at the optimal melting temperature of about 37°C.

[0052] The operator slides the lifting rod 22 up and down along the placement groove 21 inside the pot body 11 to adjust the position of the placement rack 23. Then, the operator rotates the bidirectional bolt 26, whose oppositely oriented threaded grooves drive a pair of clamping plates 25 to move closer together along the sliding groove 24, clamping the plasma bag between the clamping plates 25 and keeping it flat and relaxed to prevent the bag from wrinkling or shifting. At this time, the rotating shaft 51 in the connecting swing assembly 50 cooperates with the connecting groove 53 of the lifting rod 22, and the torsion spring 52 provides elastic restoring force to ensure that the placement rack 23 remains stable and can swing slightly in the subsequent process.

[0053] The operator activates the airflow assembly 40 via the airflow switch 14. The gas generated by the air pump enters the air chamber 42 inside the insulation sleeve 30 through the air inlet pipe 41. The connecting hole 43 ensures that the pressure in each air chamber 42 is balanced, and the gas is evenly distributed to each air outlet pipe 44. The synchronization component 60 in the air outlet pipe 44 starts to work. The gas pressure pushes the sealing slider 63 to slide against the elastic force of the spring 64, ensuring that the gas enters each air outlet base 45 and nozzle 46 synchronously. The gas enters the aeration head 462, and the reaction force of the bubbles causes the rotating base 461 to rotate around the connecting bottom pipe 463, making the aeration head 462 perform a circular motion, evenly spraying fine bubbles into the water in the pot body 11, forming a strong and uniform water flow disturbance.

[0054] The heating component continuously maintains a stable water temperature inside the pot 11, while the insulation sleeve 30 effectively reduces heat loss and prevents water temperature fluctuations. The water flows continuously under the action of the airflow component 40, breaking down temperature stratification and ensuring that all parts of the plasma bag are in full contact with the constant-temperature water. The clamp 25 of the placement component 20 ensures that the plasma bag remains fully expanded without any dead corners from heat. The connecting swing component 50 allows the placement rack 23 to sway slightly with the water flow, further eliminating uneven heating caused by localized contact. The operator monitors the water temperature in real time through the display 12 and adjusts the equipment's operating status as needed using the heating switch 13 and the airflow switch 14.

[0055] After the plasma has completely melted, the operator turns off the heating switch 13 and the airflow switch 14, rotates the bidirectional bolt 26 in the opposite direction to loosen the clamp 25, and removes the plasma bag using the lifting rod 22, completing the melting process. Throughout the process, all components work together to ensure that the plasma melts quickly and evenly at the optimal temperature, without damaging the effective components, while also improving operational convenience and equipment stability.

[0056] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A constant-temperature water bath for melting blood transfusion plasma, characterized in that: The device includes a pot body, on which a placement component is installed. The plasma bag is placed flat on the placement component. An insulation sleeve is embedded around the pot body, and the bottom of the insulation sleeve and the pot body form a constant temperature water bath space. The placement component and the plasma bag are located in the constant temperature water bath space. The insulation sleeve is equipped with an airflow component, which agitates the water flow in the constant temperature water bath space. The airflow assembly includes an air inlet pipe fixedly installed on the insulation sleeve, an air pump connected to the end of the air inlet pipe away from the insulation sleeve, a set of air chambers opened inside the insulation sleeve, the air chambers being connected to each other through a connecting hole, an air outlet pipe fixedly installed on the insulation sleeve, an air outlet base fixedly installed on the air outlet pipe, and nozzles provided on the air outlet pipe and the air outlet base. The nozzle consists of several connecting bottom pipes, a rotating base, and an aeration head. The connecting bottom pipes are fixedly installed on the air outlet pipe and the air outlet base. The rotating base is rotatably installed on the connecting bottom pipes. A set of aeration heads is fixedly installed on the rotating base. When the aeration heads emit air, they can drive the rotating base to rotate. The air outlet pipe is equipped with a synchronization component, which is used to control the airflow to enter different air outlet bases and nozzles synchronously.

2. The constant temperature water bath for melting plasma in the blood transfusion department according to claim 1, characterized in that, The placement assembly includes a set of placement slots formed inside the pot body. A lifting rod is slidably installed in the placement slots. A placement frame is connected to the lifting rod via a connecting swing assembly. A sliding groove is formed on the placement frame. A set of clamping plates is slidably installed in the sliding groove. A plasma bag is placed between the clamping plates.

3. The constant temperature water bath for melting plasma in the blood transfusion department according to claim 2, characterized in that, A pair of clamps are connected by a bidirectional bolt, and the bidirectional bolt has a pair of threaded grooves with opposite directions.

4. The constant temperature water bath for melting plasma in the blood transfusion department according to claim 3, characterized in that, The heat insulation sleeve is detachably fitted around the outside of the pot body. The heat insulation sleeve wraps around the side wall of the pot body to reduce heat exchange between the pot body and the external environment.

5. The constant temperature water bath for melting plasma in the blood transfusion department according to claim 2, characterized in that, The connecting swing assembly includes a connecting groove formed on the lifting rod, a rotating shaft is fixedly installed on the placement frame, the rotating shaft is rotatably connected to the connecting groove, and a torsion spring sleeved on the rotating shaft is fixedly installed in the connecting groove.

6. The constant temperature water bath for melting plasma in the blood transfusion department according to claim 1, characterized in that, The synchronization component includes a pair of venting rings slidably installed inside the venting pipe. A connecting piece is fixedly installed on the venting ring, a blocking slider is fixedly installed on the connecting piece, a spring is fixedly installed on the blocking slider, and the other end of the spring is fixedly installed on the inner wall of the venting pipe.

7. The constant temperature water bath for melting plasma in the blood transfusion department according to claim 6, characterized in that, The constant temperature water bath includes a main body, on which a pot body and a display are mounted. The main body is equipped with a heating switch and an airflow switch.

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