Regulatory blood transfusion auxiliary device for hematology department

Abstract

The application discloses a kind of regulation type blood transfusion auxiliary device in hematology department, including universal wheel base, regulation screen, temperature control heating pipe, blood transfusion bag suspension system, blood transfusion bag translation transmission system and blood transfusion bag uniform heating rotation system, the regulation screen is movably installed on the upper end of universal wheel base by lifting rod, and fixed seat is fixed between regulation screen and lifting rod.The heating rationality of the present application is significantly improved.The device cooperates with the blood transfusion bag horizontal reciprocating translation through the rotation of the temperature control heating pipe, and the precise regulation of the regulation screen, temperature sensor and single-chip microcomputer circuit can flexibly adjust the heating intensity and blood bag moving speed according to the clinical blood transfusion demand, avoid the problem of local temperature being too high or too low caused by traditional fixed-point heating, ensure that the blood heating temperature always fits the human tolerance range, effectively reduce the adverse reactions such as chills and shivering caused by low-temperature blood transfusion, and protect the safety of blood transfusion.

Description

Technical Field

[0001] This invention relates to the field of medical auxiliary device technology, and in particular to a controllable blood transfusion auxiliary device for hematology. Background Technology

[0002] In hematological clinical treatment, blood transfusion is a crucial medical means to save patients' lives and improve their conditions, especially suitable for treating various conditions such as severe anemia, massive bleeding, and post-chemotherapy for hematological diseases. During blood transfusion, blood temperature control, transfusion stability, and patient comfort are important factors affecting treatment outcomes. However, existing blood transfusion auxiliary equipment still has many problems that urgently need to be solved in practical applications.

[0003] Currently, most clinically used blood transfusion devices are simple suspended structures that only enable gravity-based blood transfusion and lack effective temperature control mechanisms. Since the stored blood temperature is usually much lower than body temperature, direct transfusion can easily lead to adverse reactions such as chills, shivering, and vasospasm in patients. This is especially true for patients who are weak, elderly, or children, as the low-temperature stimulation may cause more severe discomfort and even affect the stability of blood circulation. Some existing heating devices use localized, fixed-point heating, which can easily cause uneven heating of the blood. This not only fails to ensure that the overall transfusion temperature meets the standards but may also damage vital components in the blood, such as red blood cells and platelets, due to excessively high local temperatures, reducing the therapeutic effect of blood transfusion and posing a potential risk of blood coagulation.

[0004] Regarding the stability of the infusion process, in traditional blood transfusion devices, the blood bag is in a fixed position, and the blood flows slowly under the influence of gravity. This not only results in low infusion efficiency but may also lead to uneven component distribution due to blood sedimentation. In addition, existing devices lack dynamic adjustment capabilities for the blood bag and cannot adjust the blood bag's posture according to infusion needs. When the amount of blood in the blood bag decreases, the infusion rate is prone to instability, affecting the continuity of treatment.

[0005] Meanwhile, existing transfusion support devices often neglect the patient's experience. During a transfusion, the patient's arm needs to remain in a fixed position for a long time, lacking a comfortable support structure, which can easily lead to arm soreness, numbness, and sweat buildup due to prolonged lack of ventilation, potentially causing bacterial contamination at the infusion site. Furthermore, some devices have improperly arranged transfusion tubing, which can easily lead to problems such as tubing entanglement and pressure, affecting not only the smoothness of blood transfusion but also potentially increasing the workload of medical staff.

[0006] Furthermore, some existing blood transfusion devices with heating functions have independent heating and transmission components, requiring additional drive equipment. This results in complex device structures, high energy consumption, and insufficient temperature control precision, making it difficult to flexibly adjust according to the actual needs of different patients, such as their physical condition and transfusion rate. At the same time, the devices have poor heat retention, causing rapid heat loss after heating, which reduces the effectiveness of temperature control and further increases energy consumption, failing to meet the clinical requirements for efficient and energy-saving use. Summary of the Invention

[0007] The purpose of this invention is to address the shortcomings of existing technologies by proposing a regulatory hematology transfusion support device.

[0008] To achieve the above objectives, the present invention adopts the following technical solution:

[0009] A controllable hematology transfusion auxiliary device includes a caster base, a control panel, a temperature-controlled heating tube, a transfusion bag suspension system, a transfusion bag translation transmission system, and a transfusion bag uniform heating and rotation system. The control panel is movably mounted on the upper end of the caster base via a lifting rod, and a fixed seat is fixedly provided between the control panel and the lifting rod. A pair of patient arm support platforms are symmetrically fixedly connected to both ends of the fixed seat. An arm support groove is fixedly installed on the patient arm support platform, and a medical breathable pressure-reducing pad is provided on the upper surface of the arm support groove. A C-shaped frame is fixedly connected to the control panel via a pair of support rods. A U-shaped baffle is fixedly connected to the bottom end of the C-shaped frame. The temperature-controlled heating tube is rotatably connected to the top of the C-shaped frame via a rotating seat. A drive motor is fixedly installed on the upper end of the C-shaped frame, and the output shaft of the drive motor is coaxially fixedly connected to the rotating seat.

[0010] The blood transfusion bag suspension system consists of a load-bearing rod, a pair of sliding sleeves, a gear, and a sterile suspension frame, used to suspend the blood transfusion bag. The load-bearing rod is fixedly connected to the inner wall of the U-shaped baffle. The pair of sliding sleeves are symmetrically slidably connected to the load-bearing rod. The gear is rotatably connected to the upper end of the sliding sleeve. The sterile suspension frame is fixedly connected to the upper end of the gear. A first temperature sensor is provided at the top of the sterile suspension frame. A sampling tube and a transfusion tube are respectively inserted into the lower end of the blood transfusion bag.

[0011] The blood transfusion bag translation transmission system consists of a transmission connecting seat and a pair of transmission rods, which are used to horizontally reciprocate the blood transfusion bag to ensure reasonable temperature heating. The transmission connecting seat is located below the C-shaped frame and at the same height as the sliding sleeve. One end of each pair of transmission rods is rotatably connected to the side wall of the transmission connecting seat, and the other end is rotatably connected to the pair of sliding sleeves. A pushing component for pushing the transmission connecting seat to move horizontally reciprocally is installed on the upper end of the C-shaped frame.

[0012] The blood transfusion bag uniform heating and rotation system consists of a rack and pinion, which drives the blood transfusion bag to rotate while it is translating so that all parts are heated evenly. The rack and pinion are fixedly connected between the inner walls of both ends of the U-shaped baffle, and the rack and pinion are meshed with a pair of gears.

[0013] Preferably, the pushing assembly includes an eccentric drive wheel, a guide rail, a guide slider, a rotating rod, and a bending rod. The eccentric drive wheel is rotatably connected to the upper end of the C-shaped frame. The guide rail is fixedly connected to one side of the upper end of the C-shaped frame. The guide slider is slidably connected inside the guide rail. One end of the rotating rod is rotatably connected to the upper end of the eccentric drive wheel and eccentrically connected thereto, and the other end is rotatably connected to the upper end of the guide slider. One end of the bending rod is fixedly connected to the side wall of the guide slider, and the other end is fixedly connected to the side wall of the transmission connecting seat. A transmission assembly is installed between the eccentric drive wheel and the drive motor.

[0014] Preferably, the transmission assembly includes a pair of transmission wheels, which are coaxially and fixedly connected to the output shaft of the drive motor and the eccentric transmission wheel, respectively, and the pair of transmission wheels are connected by a transmission belt.

[0015] Preferably, each of the arm support slots is provided with ventilation micropores, and an air circulation chamber is fixedly installed on the rear wall of the control screen. The air circulation chamber is equipped with an air pump assembly for supplying air to the arm support slot.

[0016] Preferably, the air pump assembly includes a piston rod, a sealing piston, an air inlet pipe, and an air delivery pipe. The sealing piston is slidably connected to the inner wall of the air circulation chamber. The piston rod passes through the air circulation chamber and is fixedly connected at one end to the transmission connection seat and at the other end to the sealing piston. The air inlet pipe is connected between the air circulation chamber and the outside world, and the air delivery pipe is connected between the air circulation chamber and the arm support.

[0017] Preferably, the air inlet pipe is equipped with a first one-way valve that only allows air to flow from the outside to the air circulation chamber, and the air delivery pipe is equipped with a second one-way valve that only allows air to flow from the air circulation chamber to the arm support.

[0018] Preferably, the medical breathable pressure-reducing pad is embedded with a second temperature sensor, and the air circulation chamber is equipped with a temperature-controlled heating element. The second temperature sensor and the temperature-controlled heating element are connected by an electrical signal.

[0019] Preferably, the control screen is electrically connected to the temperature-controlled heating tube, the temperature-controlled heating element, the drive motor, the first temperature sensor, and the second temperature sensor via a microcontroller circuit.

[0020] Preferably, a medical-grade heat insulation layer is attached and fixed to the inner wall of the C-shaped frame, a sterile sampling valve is installed in series on the sampling pipeline, and a flow regulating valve and an anti-backflow valve are sequentially connected in series on the infusion pipeline. The flow regulating valve is connected to the control panel via an electrical signal, and the infusion flow rate can be preset and adjusted in real time through the control panel.

[0021] The present invention has the following beneficial effects:

[0022] 1. The present invention significantly improves the rationality of heating. The device achieves coordinated operation of the rotation of the temperature-controlled heating tube and the horizontal reciprocating movement of the blood bag. Combined with the precise control of the control screen, temperature sensor and single-chip microcomputer circuit, the heating intensity and blood bag movement speed can be flexibly adjusted according to clinical blood transfusion needs. This avoids the problem of excessively high or low local temperature caused by traditional fixed-point heating, ensuring that the blood heating temperature is always within the range that the human body can tolerate. This effectively reduces adverse reactions such as chills and shivering caused by low-temperature blood transfusion, and ensures the safety of blood transfusion.

[0023] 2. The present invention provides excellent uniform heating of blood. During the translation of the blood bag, the gear and rack mesh to drive the blood bag to rotate synchronously, so that all parts of the blood bag can come into contact with the heat emitted by the temperature-controlled heating tube in all directions without dead angles. This completely solves the drawback of uneven heating in existing devices, avoids local high temperature from damaging red blood cells, platelets and other effective blood components, and ensures that the overall blood temperature is consistent, thereby improving the blood transfusion treatment effect.

[0024] 3. This invention effectively avoids blood adhesion. Under the dual action of translation and rotation, the blood inside the blood bag forms a dynamic flow state, breaking the blood deposition phenomenon caused by traditional fixed blood bags, reducing the potential risks of red blood cell aggregation and blood coagulation, ensuring a smooth blood transfusion process, reducing the probability of pipeline blockage, and providing a reliable guarantee for the continuity of clinical blood transfusion.

[0025] 4. This invention significantly optimizes the breathability of the patient's arm. The arm support has built-in breathable micropores, and the air circulation is achieved through the transmission connection seat linked to the air pump assembly. After the outside air is introduced into the air circulation chamber through the one-way valve, it continuously delivers airflow to the arm support, quickly removing sweat and hot and humid gas from the area where the arm contacts the medical breathable pressure-reducing pad, avoiding discomfort caused by local stuffiness and dampness, and reducing the risk of bacterial contamination at the infusion site caused by sweat. This creates a dry and breathable arm placement environment for the patient and improves the comfort during blood transfusion.

[0026] 5. This invention provides outstanding temperature control and warmth for the patient's arm. The second temperature sensor embedded in the medical breathable and pressure-reducing pad monitors the temperature of the arm contact area in real time. It also uses an electrical signal to link with the temperature-controlled heating element in the air circulation chamber to precisely adjust the air temperature inside the chamber. The constant-temperature airflow is then delivered to the arm support through the air delivery pipe. This design can prevent patients from getting cold and uncomfortable due to prolonged fixed exposure of the arm or low temperature environment during blood transfusion. It is especially suitable for patients with weak constitutions, the elderly, and children. The constant-temperature airflow continuously keeps the arm warm and maintains stable blood circulation in the arm, further improving the comfort and safety of the patient's blood transfusion experience. Attached Figure Description

[0027] Figure 1 This is a front structural diagram of a controllable hematology transfusion support device proposed in this invention;

[0028] Figure 2 This is a schematic diagram of the rear structure of a controllable hematology transfusion support device proposed in this invention;

[0029] Figure 3 A schematic diagram of the internal structure of the C-frame and the blood transfusion bag heating and rotating system;

[0030] Figure 4 A schematic diagram of the connection structure between the blood transfusion bag translation transmission system and the propulsion component;

[0031] Figure 5 A schematic diagram of the connection structure between the drive component and the transmission component;

[0032] Figure 6 A schematic diagram of the connection structure of the arm support platform, air circulation chamber and pump assembly;

[0033] Figure 7 This is a cross-sectional view of the connection structure between the air pump assembly and the arm support.

[0034] Figure 8 for Figure 7 An enlarged schematic diagram of the structure at point A.

[0035] In the diagram: 1. Caster wheel base; 2. Lifting rod; 3. Control panel; 4. Fixing base; 5. Patient arm support platform; 6. Arm support slot; 7. Medical breathable pressure-reducing pad; 8. U-shaped baffle; 9. Sterile suspension frame; 10. Blood transfusion bag; 11. Drive motor; 12. C-shaped frame; 13. Temperature control heating element; 14. First temperature sensor; 15. Load-bearing rod; 16. Rack; 17. Gear; 18. Sampling tubing; 19. 20. Infusion tubing; 21. Supporting bent rod; 22. Eccentric transmission wheel; 23. Guide slide rail; 24. Guide slider; 25. Rotating rod; 26. Sliding sleeve; 27. Transmission connecting seat; 28. Bending rod; 29. ​​Transmission rod; 30. Air circulation chamber; 31. Air inlet pipe; 32. Air delivery pipe; 33. First one-way valve; 34. Second one-way valve; 35. Piston rod; 36. Sealing piston; 37. Temperature control heating element. Detailed Implementation

[0036] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0037] Example 1

[0038] Reference Figure 1-5 A controllable hematology transfusion auxiliary device includes a caster base 1, a control panel 3, a temperature-controlled heating tube 13, a blood bag suspension system, a blood bag translation transmission system, and a blood bag uniform heating and rotation system. The control panel 3 is movably mounted on the upper end of the caster base 1 via a lifting rod 2, and a fixed seat 4 is fixedly provided between the control panel 3 and the lifting rod 2. A pair of patient arm support platforms 5 are symmetrically fixedly connected to both ends of the fixed seat 4. An arm support groove 6 is fixedly installed on the patient arm support platform 5. A medical breathable pressure-reducing pad 7 is provided on the upper surface of the arm support groove 6. A C-shaped frame 12 is fixedly connected to the control panel 3 via a pair of support rods 20. A U-shaped baffle 8 is fixedly connected to the bottom end of the C-shaped frame. The temperature-controlled heating tube 13 is rotatably connected to the top of the C-shaped frame 12 via a rotating seat. A drive motor 11 is fixedly installed on the upper end of the C-shaped frame 12. The output shaft of the drive motor 11 is coaxially fixedly connected to the rotating seat.

[0039] The blood transfusion bag suspension system consists of a load-bearing rod 15, a pair of sliding sleeves 25, a gear 17, and a sterile suspension frame 9, used to suspend the blood transfusion bag 10. The load-bearing rod 15 is fixedly connected to the inner wall of the U-shaped baffle 8. The pair of sliding sleeves 25 are symmetrically slidably connected to the load-bearing rod 15. The gear 17 is rotatably connected to the upper end of the sliding sleeve 25. The sterile suspension frame 9 is fixedly connected to the upper end of the gear 17, and a first temperature sensor 14 is provided at the top of the sterile suspension frame 9. A sampling tube 18 and a transfusion tube 19 are respectively inserted into the lower end of the blood transfusion bag 10.

[0040] The inner wall of the C-frame 12 is fitted with a medical-grade heat insulation layer. A sterile sampling valve is installed in series on the sampling pipeline 18. A flow regulating valve and an anti-backflow valve are installed in series on the infusion pipeline 19. The flow regulating valve is connected to the control panel 3 via an electrical signal. The infusion flow rate can be preset and adjusted in real time through the control panel 3.

[0041] The blood transfusion bag translation transmission system consists of a transmission connecting seat 26 and a pair of transmission rods 28, which are used to horizontally reciprocate the blood transfusion bag 10 to ensure reasonable temperature heating. The transmission connecting seat 26 is located below the C-shaped frame 12 and at the same height as the sliding sleeve 25. One end of each pair of transmission rods 28 is rotatably connected to the side wall of the transmission connecting seat 26, and the other end is rotatably connected to the pair of sliding sleeves 25 respectively. A pushing component for pushing the transmission connecting seat 26 to move horizontally reciprocally is installed on the upper end of the C-shaped frame 12.

[0042] The driving assembly includes an eccentric drive wheel 21, a guide rail 22, a guide slider 23, a rotating rod 24, and a bending rod 27. The eccentric drive wheel 21 is rotatably connected to the upper end of the C-shaped frame 12. The guide rail 22 is fixedly connected to one side of the upper end of the C-shaped frame 12. The guide slider 23 is slidably connected inside the guide rail 22. One end of the rotating rod 24 is rotatably connected to the upper end of the eccentric drive wheel 21 and eccentrically connected to it. The other end is rotatably connected to the upper end of the guide slider 23. One end of the bending rod 27 is fixedly connected to the side wall of the guide slider 23. The other end is fixedly connected to the side wall of the transmission connecting seat 26. A transmission assembly is installed between the eccentric drive wheel 21 and the drive motor 11.

[0043] The transmission assembly includes a pair of transmission wheels, which are coaxially and fixedly connected to the output shaft of the drive motor 11 and the eccentric transmission wheel 21, respectively, and the pair of transmission wheels are connected by a transmission belt.

[0044] The blood bag uniform heating rotation system consists of a rack 16, which is used to drive the blood bag 10 to rotate while it is translating so that all parts are heated evenly. The rack 16 is fixedly connected between the inner walls of both ends of the U-shaped baffle, and the rack 16 is meshed with a pair of gears 17.

[0045] The control panel 3 is electrically connected to the temperature control heating tube 13, the drive motor 11, and the first temperature sensor 14 via a microcontroller circuit. This microcontroller technology is a mature existing technology and will not be elaborated on here.

[0046] In this embodiment, medical staff suspend the blood transfusion bag 10 on the sterile hanging frame 9, and connect the sampling line 18 and the transfusion line 19 in sequence, ensuring that the sterile sampling valve is in the closed state and the flow regulating valve and the anti-backflow valve are in the initial standby state. The patient places their arm on the medical breathable pressure-reducing pad 7 of the arm support 6, and presets the target blood heating temperature and infusion flow parameters through the control screen 3. The control screen 3 starts the drive motor 11, the temperature control heating tube 13 and the first temperature sensor 14 through the microcontroller circuit, and each component enters the working state.

[0047] After the drive motor 11 starts, its output shaft synchronously drives two parts to operate. First, it directly drives the rotating seat and the temperature-controlled heating tube 13 to rotate inside the C-shaped frame 12, dissipating heat evenly into the cabin. The medical-grade heat insulation layer on the inner wall of the C-shaped frame 12 can reduce heat loss and maintain a stable temperature inside the cabin. Second, it drives the eccentric transmission wheel 21 to rotate through the transmission assembly. The eccentric transmission wheel 21 pulls the guide slider 23 to slide horizontally back and forth along the guide rail 22 through the eccentrically connected rotating rod 24. The guide slider 23 drives the transmission connecting seat 26 to move back and forth synchronously through the bent rod 27.

[0048] When the transmission connecting seat 26 moves, a pair of transmission rods 28 push the sliding sleeve 25 to slide horizontally back and forth along the load-bearing rod 15, thereby driving the sterile suspension frame 9 and the blood bag 10 to move horizontally. At the same time, the gear 17 at the upper end of the sliding sleeve 25 meshes with the rack 16 fixed to the inner wall of the U-shaped baffle 8, driving the sterile suspension frame 9 and the blood bag 10 to rotate synchronously during the translation. During this process, the first temperature sensor 14 at the top of the sterile suspension frame 9 monitors the temperature around the blood bag 10 in real time and feeds the signal back to the control screen 3. The control screen 3 dynamically adjusts the heating power of the temperature control heating tube 13 and the speed of the drive motor 11 through the microcontroller circuit to ensure that all parts of the blood bag 10 are heated evenly under the dual action of translation and rotation, and the temperature is always maintained within the preset range.

[0049] During blood transfusion, medical staff can adjust the flow regulating valve on the transfusion line 19 in real time via the control panel 3. The infusion flow rate can be preset and dynamically optimized according to the patient's condition and transfusion speed requirements. The anti-backflow valve on the transfusion line 19 effectively prevents blood backflow, ensuring the safety and continuity of the transfusion process. If blood sampling is required, the sterile sampling valve on the sampling line 18 can be opened to complete the sampling operation in a sterile environment without interrupting the transfusion process.

[0050] Example 2

[0051] Reference Figure 6 The difference between this embodiment and embodiment 1 is that the arm support 6 is provided with ventilation micropores, and an air circulation chamber 29 is fixedly installed on the rear wall of the control screen 3. An air pump assembly for supplying air to the arm support 6 is installed in the air circulation chamber 29.

[0052] The air pump assembly includes a piston rod 34, a sealing piston 35, an air inlet pipe 30, and an air delivery pipe 31. The sealing piston 35 is slidably connected to the inner wall of the air circulation chamber 29. The piston rod 34 passes through the air circulation chamber 29 and is fixedly connected at one end to the transmission connection seat 26 and at the other end to the sealing piston 35. The air inlet pipe 30 is connected between the air circulation chamber 29 and the outside world, and the air delivery pipe 31 is connected between the air circulation chamber 29 and the arm support 6.

[0053] The air inlet pipe 30 is equipped with a first one-way valve 32 that only allows air to flow from the outside to the air circulation chamber 29, and the air delivery pipe 31 is equipped with a second one-way valve 33 that only allows air to flow from the air circulation chamber 29 to the arm support 6.

[0054] In this embodiment, during the blood transfusion process, when the drive motor 11 drives the transmission connecting seat 26 to move horizontally back and forth through the transmission component, it simultaneously pulls the piston rod 34 and the sealing piston 35 to slide back and forth in the air circulation chamber 29.

[0055] When the sealing piston 35 moves away from the air inlet pipe 30, a negative pressure is formed inside the air circulation chamber 29, and outside air enters the chamber through the first one-way valve 32 on the air inlet pipe 30; when the sealing piston 35 moves in the opposite direction, the air inside the chamber is compressed and delivered to the arm support 6 through the second one-way valve 33 on the air delivery pipe 31, and then evenly blown to the contact area between the patient's arm and the medical breathable pressure relief pad 7 through the breathable micropores in the arm support 6.

[0056] The dual one-way valves ensure one-way airflow, preventing backflow and contamination. The continuous airflow quickly removes sweat and moisture from the area in contact with the arm, effectively preventing discomfort caused by localized stuffiness and dampness, reducing the risk of bacterial contamination at the infusion site from sweat, and creating a dry and breathable environment for the patient's arm, significantly improving comfort and safety during blood transfusions.

[0057] Example 3

[0058] Reference Figure 7-8 The difference from Embodiments 1 and 2 is that the medical breathable pressure relief pad 7 is embedded with a second temperature sensor, the air circulation chamber 29 is equipped with a temperature control heating element 36, the second temperature sensor and the temperature control heating element 36 are connected by an electrical signal, and the control screen 3 is electrically connected to the temperature control heating element 36 and the second temperature sensor through a single-chip microcomputer circuit.

[0059] In this embodiment, before blood transfusion, medical staff can preset the target temperature of the arm contact area through the control screen 3. After the device is started, the second temperature sensor embedded in the medical breathable pressure relief pad 7 monitors the temperature data of the area where the arm contacts the pad in real time and continuously feeds the signal back to the microcontroller circuit of the control screen 3.

[0060] When the monitored temperature is lower than the preset value, the microcontroller circuit immediately sends a start signal to the temperature control heating element 36 in the air circulation chamber 29, and the temperature control heating element 36 starts to heat up and heat the air in the chamber; when the monitored temperature reaches the preset value, the temperature control heating element 36 automatically stops heating, realizing precise closed-loop temperature control.

[0061] Meanwhile, during the reciprocating movement of the transmission connecting seat 26, the piston rod 34 and the sealing piston 35 continue to slide within the air circulation chamber 29. In conjunction with the one-way flow action of the first one-way valve 32 and the second one-way valve 33, the constant temperature air in the chamber is continuously delivered to the arm support 6 and evenly blown onto the patient's arm through the breathable micropores.

[0062] This design ensures that the airflow remains dry and breathable while maintaining a stable temperature at the point of contact with the arm. This prevents patients from experiencing discomfort due to prolonged exposure of the arm to cold or a low-temperature environment. It is especially suitable for patients with weak constitutions, the elderly, and children. By continuously ensuring stable blood circulation in the arm through constant-temperature airflow, it not only improves comfort but also further reduces the risk of vasospasm caused by low-temperature stimulation, thus enhancing the safety and compatibility of the blood transfusion process.

[0063] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A controllable hematology transfusion auxiliary device, comprising a caster base (1), a control panel (3), a temperature-controlled heating tube (13), a transfusion bag suspension system, a transfusion bag translation transmission system, and a transfusion bag uniform heating and rotation system, characterized in that: The control screen (3) is movably mounted on the upper end of the universal wheel base (1) via the lifting rod (2) and a fixed seat (4) is fixedly provided between it and the lifting rod (2). A pair of patient arm support platforms (5) are symmetrically fixedly connected to both ends of the fixed seat (4). An arm support groove (6) is fixedly installed on the patient arm support platform (5). A medical breathable pressure relief pad (7) is provided on the upper surface of the arm support groove (6). A C-shaped frame (12) is fixedly connected to the control screen (3) via a pair of support bent rods (20). A U-shaped baffle (8) is fixedly connected to the bottom end of the C-shaped frame. The temperature control heating tube (13) is rotatably connected to the top of the C-shaped frame (12) via a rotating seat. A drive motor (11) is fixedly installed on the upper end of the C-shaped frame (12). The output shaft of the drive motor (11) is coaxially fixedly connected to the rotating seat. The blood transfusion bag suspension system consists of a load-bearing rod (15), a pair of sliding sleeves (25), a gear (17), and a sterile suspension frame (9) for suspending the blood transfusion bag (10). The load-bearing rod (15) is fixedly connected to the inner wall of the U-shaped baffle (8). The pair of sliding sleeves (25) are symmetrically slidably connected to the load-bearing rod (15). The gear (17) is rotatably connected to the upper end of the sliding sleeve (25). The sterile suspension frame (9) is fixedly connected to the upper end of the gear (17). A first temperature sensor (14) is provided at the top of the sterile suspension frame (9). A sampling tube (18) and a transfusion tube (19) are respectively inserted into the lower end of the blood transfusion bag (10). The blood transfusion bag translation transmission system consists of a transmission connecting seat (26) and a pair of transmission rods (28), which are used to horizontally reciprocate to translate the blood transfusion bag (10) to ensure that its temperature is heated reasonably. The transmission connecting seat (26) is set below the C-shaped frame (12) and at the same height as the sliding sleeve (25). One end of each pair of transmission rods (28) is rotatably connected to the side wall of the transmission connecting seat (26), and the other end is rotatably connected to the pair of sliding sleeves (25). The upper end of the C-shaped frame (12) is equipped with a pushing component for pushing the transmission connecting seat (26) to move horizontally reciprocally. The uniform heating and rotating system of the blood transfusion bag is composed of a rack (16), which is used to drive the blood transfusion bag (10) to rotate while it is translating so that its parts are uniformly heated. The rack (16) is fixedly connected between the inner walls of the two ends of the U-shaped baffle. The rack (16) is meshed with a pair of gears (17). Each arm support slot (6) is provided with a ventilation micropore. An air circulation chamber (29) is fixedly installed on the rear wall of the control screen (3). An air pump assembly for supplying air to the arm support slot (6) is installed in the air circulation chamber (29). The air pump assembly includes a piston rod (34), a sealing piston (35), an air inlet pipe (30), and an air delivery pipe (31). The sealing piston (35) is slidably connected to the inner wall of the air circulation chamber (29). The piston rod (34) is installed through the air circulation chamber (29), with one end fixedly connected to the transmission connection seat (26) and the other end fixedly connected to the sealing piston (35). The air inlet pipe (30) is connected between the air circulation chamber (29) and the outside. The air delivery pipe (31) is connected between the air circulation chamber (29) and the arm support (6). The air inlet pipe (30) is equipped with a first one-way valve (32) that only allows air to flow from the outside to the air circulation chamber (29), and the air delivery pipe (31) is equipped with a second one-way valve (33) that only allows air to flow from the air circulation chamber (29) to the arm support (6). The pushing assembly includes an eccentric drive wheel (21), a guide rail (22), a guide slider (23), a rotating rod (24), and a bending rod (27). The eccentric drive wheel (21) is rotatably connected to the upper end of the C-shaped frame (12). The guide rail (22) is fixedly connected to one side of the upper end of the C-shaped frame (12). The guide slider (23) is slidably connected inside the guide rail (22). One end of the rotating rod (24) is rotatably connected to the upper end of the eccentric drive wheel (21) and eccentrically connected to it. The other end is rotatably connected to the upper end of the guide slider (23). One end of the bending rod (27) is fixedly connected to the side wall of the guide slider (23). The other end is fixedly connected to the side wall of the transmission connecting seat (26). A transmission assembly is installed between the eccentric drive wheel (21) and the drive motor (11). The transmission assembly includes a pair of transmission wheels, which are coaxially and fixedly connected to the output shaft of the drive motor (11) and the eccentric transmission wheel (21), respectively, and the pair of transmission wheels are connected by a transmission belt.

2. The adjustable hematology transfusion support device according to claim 1, characterized in that: The medical breathable pressure relief pad (7) is embedded with a second temperature sensor, and the air circulation chamber (29) is equipped with a temperature control heating element (36). The second temperature sensor and the temperature control heating element (36) are connected by an electrical signal.

3. The adjustable hematology transfusion support device according to claim 2, characterized in that: The control screen (3) is electrically connected to the temperature control heating tube (13), the temperature control heating element (36), the drive motor (11), the first temperature sensor (14), and the second temperature sensor through a single-chip microcomputer circuit.

4. The adjustable hematology transfusion support device according to claim 1, characterized in that: The inner wall of the C-frame (12) is fitted with a medical-grade heat insulation layer. A sterile sampling valve is connected in series on the sampling pipeline (18). A flow regulating valve and an anti-backflow valve are connected in series on the infusion pipeline (19). The flow regulating valve is connected to the control panel (3) via an electrical signal. The infusion flow rate can be preset and adjusted in real time through the control panel (3).

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