A first-aid blood transfusion device with a stable flow rate

Abstract

The present invention relates to a first-aid blood transfusion device with a stable flow rate. The first-aid blood transfusion device described in the present invention includes a blood transfusion box, a fixing seat, an injection seat, a shaking mechanism and a controller. The blood transfusion box contains a blood transfusion cavity. In the cavity, the fixing seat has a limiting member for limiting the blood transfusion bag and a first pressing mechanism for fixing the blood transfusion interface. The injection seat has a second pressing mechanism for fixing the plug of the blood transfusion tube and a translation driving mechanism for driving the second pressing mechanism to approach or move away from the first pressing mechanism. The shaking mechanism shakes the fixing seat. The controller is electrically connected to each mechanism to control the shaking mechanism to shake the blood transfusion bag regularly, thereby replacing the medical staff to shake the blood transfusion bag. On the one hand, it reduces the labor intensity of the medical staff and saves manpower. On the other hand, the control by the controller can also ensure the stability of the shaking frequency and maintain the stable flow rate during the blood transfusion process. The present application also uses a heating device to increase the blood temperature to prevent the patient's body temperature from dropping suddenly due to the infusion of a large amount of low-temperature blood.

Description

Technical Field

[0001] The present invention relates to the field of blood transfusion equipment, and particularly to a first-aid blood transfusion equipment with a stable flow rate. Background Art

[0002] In the field of medical first aid, first-aid blood transfusion is very important for maintaining the normal vital signs of patients. During the first-aid blood transfusion process, in order to facilitate the rapid transfusion of a large amount of blood to patients, it is necessary to pressurize the transfusion process to increase the blood delivery speed, and at the same time, it is necessary to prevent blood cell destruction and unstable transfusion flow rate caused by uneven pressure.

[0003] In the prior art, generally, medical staff shake the blood bag at intervals to prevent blood precipitation and uneven mixing. On the one hand, this increases the labor intensity of medical staff, and on the other hand, the inconsistent frequency of manual shaking will cause the flow rate to become unstable during the blood transfusion process.

[0004] Therefore, it is necessary to develop a first-aid blood transfusion equipment with a stable flow rate that can prevent blood destruction and precipitation during the first-aid blood transfusion process. Summary of the Invention

[0005] Based on this, the purpose of the present invention is to provide a first-aid blood transfusion equipment with a stable flow rate, which can automatically shake the blood bag regularly during the transfusion process to prevent blood precipitation, maintain the uniformity of blood components, and reduce the work intensity of medical staff.

[0006] The purpose of the present invention is achieved by the following solutions:

[0007] A first-aid blood transfusion equipment with a stable flow rate, comprising:

[0008] A blood transfusion box with a blood transfusion cavity inside. The blood transfusion box has an opening, and the opening is provided with a box cover;

[0009] A fixed seat is arranged in the blood transfusion cavity. On the opposite sides of the fixed seat, a limiting member and a first pressing mechanism are respectively arranged. The limiting member is used to limit one end of the blood transfusion bag, and the first pressing mechanism is used to fix the blood transfusion interface of the blood transfusion bag to the fixed seat;

[0010] An injection seat is arranged in the blood transfusion cavity. The injection seat is provided with a translation driving mechanism and a second pressing mechanism. The second pressing mechanism is located on the translation driving mechanism. The second pressing mechanism is used to fix the plug of the blood transfusion tube to the injection seat and face the fixed seat, and the translation driving mechanism can drive the second pressing mechanism to approach or move away from the first pressing mechanism;

[0011] A shaking mechanism is arranged in the blood transfusion cavity. The shaking mechanism is used to drive the fixed seat to shake;

[0012] A controller, which is electrically connected to the shaking mechanism, the first pressing mechanism, the translation driving mechanism and the second pressing mechanism.

[0013] In one embodiment, the shaking mechanism includes a workbench and a first rotation driving mechanism, and both the fixed seat and the injection seat are mounted on the workbench; the first rotation driving mechanism is drivingly connected to the workbench.

[0014] In one embodiment, a plurality of fixed seats are provided in the blood transfusion box;

[0015] The shaking mechanism includes a rotating table, a rotating ring table, a second rotation driving mechanism and a third rotation driving mechanism. The rotating ring table is located outside the rotating table and is coaxially arranged with the rotating table;

[0016] A plurality of fixed seats are all arranged on the rotating ring table and are circumferentially spaced around the rotating ring table, and the injection seat is arranged on the rotating table; the second rotation driving mechanism is drivingly connected to the rotating table, and the third rotation driving mechanism is drivingly connected to the rotating ring table.

[0017] In one embodiment, the first-aid blood transfusion device further includes a pressurizing device, and the pressurizing device is arranged in the blood transfusion cavity;

[0018] The controller is electrically connected to the pressurizing device to drive the pressurizing device to guide the blood in the blood transfusion bag into the blood transfusion pipeline.

[0019] In one embodiment, the pressurizing device includes a first motor, a pump head and a pump tube. The pump head includes a housing, a rotating block and a plurality of rollers; the housing is provided with an accommodating cavity, an inlet connected to the accommodating cavity and an outlet connected to the accommodating cavity;

[0020] The rotating block is located in the accommodating cavity; the first motor is drivingly connected to the rotating block and drives the rotating block to axially rotate relative to the accommodating cavity of the housing; the rotating block is connected with a plurality of extrusion rollers, and the plurality of extrusion rollers are axially rotationally distributed around the rotating block; the pump tube enters the housing from the inlet and leaves the housing along the cavity wall of the accommodating cavity from the outlet; the pump tube is located between the extrusion rollers and the cavity wall of the accommodating cavity and is squeezed by the extrusion rollers.

[0021] In one embodiment, the injection seat includes a base and side walls extending upward from opposite sides of the base. The side walls are provided with mounting grooves; the translation driving mechanism includes a slide rail, a driving rack, a second motor, a driving gear and a slider;

[0022] The slide rail is mounted on the side wall of the mounting groove, the slider is slidably connected to the slide rail, the driving rack is mounted on the slider, the driving gear is engaged with the driving rack, the second motor is drivingly connected to the driving gear, the slider extends horizontally to form an extension platform, and the second pressing mechanism is arranged on the side of the extension platform away from the slider.

[0023] In one embodiment, the second pressing mechanism includes a first support block, a first pressing block, and a bolt; the first support block is fixed to the extension table, the first support block is provided with a settlement hole, the bolt is rotatably connected to the settlement hole, and the first pressing block is threadedly connected to the bolt and is located between the first support block and the bolt.

[0024] In one embodiment, the limiting member is a hook; the first pressing mechanism includes a second support block, a second pressing block, and an elastic member; the second support block is fixed to the fixed seat, the second support block is connected to the second pressing block through the elastic member, and the second pressing block is used to fix the blood transfusion interface of the infusion bag to the second support block.

[0025] In one embodiment, a pipeline guiding block is further provided in the blood transfusion cavity; an output port is provided on the blood transfusion box, and the pipeline guiding block is used to guide the blood transfusion pipeline to the output port.

[0026] In one embodiment, the first-aid blood transfusion device is further provided with a heating device and a temperature sensor, and the output end of the heating device and the temperature sensor are both installed in the blood transfusion cavity;

[0027] The temperature sensor and the heating device are both electrically connected to the controller, and the temperature sensor is used to send temperature information to the controller.

[0028] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0029] 1. Shaking the blood transfusion bag by means of the shaking mechanism built into the machine can save human resources; medical staff do not need to frequently manually shake the blood transfusion bag, and can devote more energy to the monitoring and comprehensive care of the patient's condition, optimize the allocation of medical resources, and improve the overall medical service efficiency. On the other hand, compared with the fact that it is difficult to ensure the consistency of the shaking frequency and amplitude in manual shaking operation, the device can stably shake with precisely set parameters, which can effectively avoid the blood flow rate fluctuation caused by unstable shaking, ensure the stable and constant flow rate during blood transfusion, enable the blood to be input into the patient's body in the best state, and ensure the reliability and safety of the blood transfusion effect; at the same time, the stable mechanical shaking can reduce the friction between the blood and the bag wall and the local pressure change caused by uneven shaking, reduce the risk of blood component damage, and better maintain the activity and component integrity of the blood, thereby further improving the quality of blood transfusion treatment;

[0030] 2. The translation driving mechanism can drive the second pressing mechanism to approach or move away from the first pressing mechanism, so that when performing blood transfusion work, the plug of the blood transfusion tube can be accurately inserted into the blood transfusion interface of the blood transfusion bag and the plasma can be smoothly exported, saving the operation of medical staff to replace the blood bag and further saving human resources;

[0031] 3. Both the fixed seat and the injection seat rotate synchronously, avoiding the interruption of blood transfusion caused by pulling the blood transfusion plug during the shaking process. Using a rotating mechanism as the shaking mechanism can make the blood components shake more evenly by controlling the rotation speed;

[0032] 4. On the basis of synchronous rotation, the fixed seat and the injection seat are arranged on two independent rotating platforms. When swinging is required, they can rotate together. When replacing the blood transfusion bag, the blood transfusion plug is pulled out, and the fixed seat rotates alone to replace the old blood transfusion bag with a new one, and then the blood transfusion plug is reinserted to complete the process of automatically replacing the blood transfusion bag. Medical staff can place multiple blood transfusion bags in the blood transfusion box at the same time and complete the automatic replacement of the blood transfusion bag through the control device, thus further saving manpower;

[0033] 5. A peristaltic pump is used as the pressurizing device of the first-aid blood transfusion equipment. When working, the first motor drives the rotating block to rotate, and the rollers on the rotating block sequentially squeeze the pump tube, forming a positive pressure in front of the roller to push the liquid, and a negative pressure behind to suck the liquid, so as to realize the stable transportation of the liquid in such a cycle.

[0034] For better understanding and implementation, the present invention will be described in detail below with reference to the accompanying drawings. Description of the Drawings

[0035] Figure 1 It is a schematic structural diagram of a first-aid blood transfusion equipment with a stable flow rate provided by the first embodiment of the present application;

[0036] Figure 2 For Figure 1 It is a schematic structural diagram of a first-aid blood transfusion equipment with a stable flow rate after hiding the box cover and the console;

[0037] Figure 3 It is a schematic structural diagram of a first-aid blood transfusion equipment with a stable flow rate provided by the second embodiment of the present application;

[0038] Figure 4 It is a schematic structural diagram of the pressurizing device in a first-aid blood transfusion equipment with a stable flow rate provided by the third embodiment of the present application;

[0039] Figure 5 For Figure 4 It is a schematic diagram of the state when the pump tube is squeezed by the squeezing roller;

[0040] Figure 6 For Figure 4 It is another schematic diagram of the state when the pump tube is squeezed by the squeezing roller;

[0041] Figure 7 For Figure 1 It is a schematic structural diagram of the injection seat in a first-aid blood transfusion equipment with a stable flow rate provided;

[0042] Figure 8For Figure 7 A cross-sectional view of the injection seat provided;

[0043] Figure 9 For Figure 1 A schematic structural view of the fixing seat in the first-aid blood transfusion device with a stable flow rate provided;

[0044] In the figure, 100 is the blood transfusion box; 110 is the blood transfusion cavity; 120 is the box cover; 200 is the fixing seat; 210 is the limiting member; 211 is the hook; 220 is the first pressing mechanism; 221 is the second supporting block; 222 is the second pressing block; 223 is the elastic member; 300 is the injection seat; 310 is the translation driving mechanism; 311 is the slide rail; 312 is the driving rack; 313 is the second motor; 314 is the driving gear; 315 is the slider; 316 is the extension table; 320 is the second pressing mechanism; 321 is the first supporting block; 322 is the first pressing block; 323 is the bolt; 330 is the installation groove; 400 is the shaking mechanism; 410 is the workbench; 420 is the rotating table; 430 is the rotating ring table; 450 is the second rotating driving mechanism; 460 is the third rotating driving mechanism; 500 is the controller; 600 is the pressurizing device; 610 is the first motor; 620 is the pump head; 621 is the housing; 622 is the rotating block; 623 is the extrusion roller; 624 is the accommodating cavity; 625 is the inlet; 626 is the outlet; 630 is the pump tube; 700 is the pipeline guiding block. Detailed implementation manners

[0045] For the convenience of understanding the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Preferred embodiments of the present invention are shown in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the understanding of the disclosure of the invention more thorough and comprehensive.

[0046] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "parallel", "first", "second", "third" and similar expressions used herein are for illustrative purposes only.

[0047] Please refer to Figure 1 , which shows a schematic structural view of a first-aid blood transfusion device with a stable flow rate provided in the first embodiment of the present application. Among them, the first-aid blood transfusion device includes a blood transfusion box 100, a fixing seat 200, an injection seat 300, a shaking mechanism 400 and a controller 500.

[0048] Specifically, a blood transfusion cavity 110 is provided inside the blood transfusion box 100. An opening is provided at the upper end of the blood transfusion box 100, and a lid 120 that can be opened and closed is provided on this opening; a fixing seat 200 and an injection seat 300 are installed inside the blood transfusion cavity 110. On the opposite sides of the fixing seat 200 away from and close to the injection seat 300, a limiting member 210 and a first pressing mechanism 220 are respectively provided; among them, the limiting member 210 is used to limit one end of the blood transfusion bag, effectively avoiding the risk of the blood transfusion bag being displaced or even thrown out during the operation of the device. The first pressing mechanism 220 is used to fix the blood transfusion interface of the blood transfusion bag to the fixing seat 200, so as to facilitate subsequent connection with the blood transfusion tube.

[0049] Preferably, the above-mentioned limiting member 210 can also be a mechanism for limiting the blood transfusion bag at other positions of the fixing seat 200, or a mechanism that can be adjusted to adapt to different sizes of blood transfusion bags. For example, an elastic clip mechanism that uses the restoring force generated by elastic deformation to clamp the blood transfusion bag. By adjusting the opening and closing force and shape design of the clip, it can meet the limiting requirements of different specifications of blood transfusion bags and can effectively prevent the blood transfusion bag from slipping or displacing. Another example is to set a small vacuum adsorption area on the fixing seat 200, and generate a local vacuum environment by connecting equipment such as a vacuum pump. When one end of the blood transfusion bag approaches this area, it is tightly adsorbed on the fixing seat 200 under the action of vacuum negative pressure, which can provide a strong adsorption force to ensure the fixed position of the blood transfusion bag, and the vacuum degree can be adjusted to adapt to blood transfusion bags of different weights and materials.

[0050] The injection seat 300 is provided with a translation driving mechanism 310 and a second pressing mechanism 320. The second pressing mechanism 320 is located on the translation driving mechanism 310. The second pressing mechanism 320 is used to fix the plug of the blood transfusion tube to the injection seat 300 and face the fixing seat 200. The translation driving mechanism 310 can drive the second pressing mechanism 320 to approach or move away from the first pressing mechanism 220, so that during the blood transfusion operation, the plug of the blood transfusion tube can be accurately inserted into the blood transfusion interface of the blood transfusion bag and the plasma can be smoothly exported.

[0051] A shaking mechanism 400 is provided inside the blood transfusion cavity 110. The shaking mechanism 400 is used to drive the fixing seat 200 to move to drive the blood transfusion bag carried by it to shake; specifically, because blood has certain coagulation characteristics and its internal components are prone to precipitation when standing still, and through regular shaking, it can effectively break the coagulation structure that may form inside the blood, prevent the aggregation of components such as platelets, prevent the blood from coagulating into lumps, and at the same time ensure the uniform mixing of various components in the blood, such as red blood cells, white blood cells, plasma proteins, etc., to avoid uneven distribution of components caused by precipitation, thereby ensuring the safety and effectiveness of blood transfusion, keeping the blood input into the patient's body in a good state, and maximizing the role of blood transfusion treatment.

[0052] Preferably, the shaking mechanism 400, the first pressing mechanism 220, the translation driving mechanism 310, and the second pressing mechanism 320 are all electrically connected to the controller 500.

[0053] The working principle of the first embodiment of the present application for a first-aid blood transfusion device with a stable blood flow rate is as follows:

[0054] First, medical staff place the blood transfusion bag on the fixing seat 200 in the blood transfusion chamber 110, limit one end of the blood transfusion bag away from the blood transfusion interface through the limiting member 210, and the first pressing mechanism 220 fixes the blood transfusion interface of the blood transfusion bag. Then, place the blood transfusion tube plug on the injection seat 300, and the second pressing mechanism 320 fixes it and faces the fixing seat 200. The controller 500 can control the translation driving mechanism 310 to make the second pressing mechanism 320 drive the blood transfusion tube plug to approach the first pressing mechanism 220, so that the plug is inserted into the blood transfusion interface to establish a blood transfusion path. During the blood transfusion process, the controller 500 controls the shaking mechanism 400 to drive the fixing seat 200 to shake, driving the blood transfusion bag to shake, preventing blood coagulation and component precipitation, and ensuring the safe, stable, and efficient progress of blood transfusion.

[0055] The beneficial effects of the first embodiment of the present application for a first-aid blood transfusion device with a stable blood flow rate are as follows:

[0056] On the one hand, shaking the blood transfusion bag by means of the built-in shaking mechanism 400 of the machine can save human resources; medical staff do not need to manually shake the blood transfusion bag frequently, and can devote more energy to the monitoring of the patient's condition and comprehensive care, optimize the allocation of medical resources, and improve the overall medical service efficiency. On the other hand, compared with the fact that it is difficult to ensure the consistency of the shaking frequency and amplitude in manual shaking operation, the device can shake stably with precisely set parameters, which can effectively avoid the blood flow rate fluctuation caused by unstable shaking, ensure the smooth and constant blood flow rate during blood transfusion, enable the blood to be input into the patient's body in the best state, and ensure the reliability and safety of the blood transfusion effect. At the same time, the stable mechanical shaking can reduce the friction between the blood and the bag wall and the local pressure change caused by uneven shaking, reduce the risk of blood component damage, and better maintain the activity and component integrity of the blood, thereby further improving the quality of blood transfusion treatment.

[0057] Preferably, as Figure 2As shown in the figure, the shaking mechanism 400 includes a workbench 410 and a first rotation driving mechanism. The fixed seat 200 and the injection seat 300 are both installed on the workbench 410; the first rotation driving mechanism is drivingly connected to the workbench 410. Specifically, when only the shaking mechanism 400 shakes the fixed seat 200 mechanically alone, the generated vibration and displacement will directly act on the blood transfusion interface of the blood transfusion bag and the connected blood transfusion tube plug, making the plug easy to loosen, resulting in blood leakage and affecting the stability of the blood transfusion process. In severe cases, the plug may even fall off, leading to blood transfusion interruption, delaying the treatment of patients, and causing medical accidents that endanger lives. However, when the fixed seat 200 and the injection seat 300 shake cooperatively driven by the first rotation driving mechanism, the impact force can be evenly dispersed, the plug can be firmly connected, and the above risks can be effectively avoided, ensuring the smooth progress of blood transfusion.

[0058] Preferably, the blood transfusion tube can adopt the design of a corrugated pipe. The corrugated pipe can effectively buffer and adapt to the change of tensile force, reducing the risk that the plug is pulled out due to the stretching of the blood transfusion tube caused by the movement of the injection seat 300 during the shaking process. At the same time, the fixed seat 200 and the injection seat 300 can be both arranged at the position between the center and the edge of the workbench 410, and the pipe passing through the two passes through the center of the workbench 410, so that the length of the blood transfusion tube between the injection seat 300 and the fixed seat 200 during the shaking process is always constant relative to the center of the workbench 410, avoiding the plug from being pulled out. In addition, a part of the pipe can be reserved on the injection seat 300. When the shaking causes the blood transfusion tube to stretch, the reserved pipe can timely supplement the length, further ensuring that the pipe is always in an appropriate tension state, and effectively maintaining the stability and safety of the blood transfusion process.

[0059] In the emergency blood transfusion scenario, it is often necessary to continuously use multiple blood bags to meet the large blood transfusion needs of patients. Since the blood in each blood bag comes from different blood donors and cannot be transfused simultaneously, and the pipeline should be rinsed with normal saline before each transfusion to wash out the blood left in the pipeline from the previous bag, ensuring that the newly transfused blood components can smoothly enter the patient's body and guaranteeing the safety and effectiveness of emergency blood transfusion.

[0060] In one of the embodiments, refer to Figure 3 , a plurality of fixed seats 200 are provided in the blood transfusion box 100;

[0061] The shaking mechanism 400 includes a rotating table 420, a rotating ring table 430, a second rotation driving mechanism 450 and a third rotation driving mechanism 460. The rotating ring table 430 is located outside the rotating table 420 and is coaxially arranged with the rotating table 420; a plurality of fixed seats 200 are all arranged on the rotating ring table 430 and are circumferentially spaced around the rotating ring table 430, and the injection seat 300 is arranged on the rotating table 420; the second rotation driving mechanism 450 is drivingly connected to the rotating table 420, and the third rotation driving mechanism 460 is drivingly connected to the rotating ring table 430.

[0062] Specifically, multiple fixing bases 200 can hold multiple different blood transfusion bags and normal saline bags. When performing a blood transfusion bag conversion, the control console drives the translation drive mechanism 310 to pull out the plug of the blood transfusion tube from the blood transfusion interface of the blood transfusion bag. Then, the second rotation drive mechanism 450 remains stationary, and the third rotation drive mechanism 460 is used to rotate the rotating ring table 430, so that the fixing base 200 opposite to the plug of the blood transfusion tube is converted from the fixing base 200 carrying the previous blood transfusion bag to the fixing base 200 carrying normal saline. Then, the plug is controlled to be inserted into the normal saline bag to input normal saline into the human body, and then it is similarly converted to the next blood transfusion bag for blood transfusion. When it is necessary to shake the blood, the control console synchronously controls the second rotation drive mechanism 450 and the third rotation drive mechanism 460 to drive the rotating table 420 and the rotating ring table 430 respectively, so that the fixing base 200 and the injection base 300 rotate back and forth coaxially and synchronously, so as to prevent the plug from falling off due to the force caused by a single movement.

[0063] On the one hand, the multiple fixing bases 200 can hold different blood transfusion bags and normal saline bags, which is convenient for flexible switching during blood transfusion, ensuring the continuity of blood transfusion and avoiding affecting the treatment of patients due to untimely replacement of blood bags. On the other hand, through the cooperation of specific drive mechanisms, the conversion of the plug of the blood transfusion tube between the blood transfusion bag and the normal saline bag is accurately realized, with a high degree of automation, reducing human operation errors, and improving the safety and efficiency of blood transfusion. At the same time, during the shaking process, the control console synchronously controls the rotating table 420 and the rotating ring table 430, so that the fixing base 200 and the injection base 300 rotate coaxially and synchronously, effectively preventing the plug from falling off due to uneven force caused by a single movement, while maintaining the stability of the blood transfusion path, ensuring that the blood and normal saline can be smoothly and stably input into the patient's body, providing a reliable, efficient and safe guarantee for emergency blood transfusion and other scenarios, and being able to shake other blood transfusion bags to be used on the fixing base 200, preventing the blood components in the blood transfusion bags to be used from precipitating or undergoing coagulation reactions, and keeping them in the best infusion state all the time. This not only reduces the risk of quality decline caused by long-term static placement of blood, but also ensures that the blood bag can be immediately put into use when an emergency blood transfusion need occurs, so that the device can not only be used for blood transfusion, but also can be used as a device for maintaining the activity of the blood bag to a certain extent when it does not participate in blood transfusion work, greatly expanding the practicality of the device.

[0064] It can be understood that the shaking mechanism 400 can also be a multi-layer rotating platform. The bottom layer is a rotating circular ring platform 430, and multiple fixing seats 200 are arranged at intervals on it, on which blood transfusion bags and normal saline bags can be placed. The upper layer is a rotating platform 420, on which an injection seat 300 is installed. When replacing the blood transfusion bag, the motor drives the rotating circular ring platform 430 to rotate, accurately switching the positions of different fixing seats 200, so that the blood transfusion tube plug can smoothly switch from one blood transfusion bag to another blood transfusion bag or a normal saline bag. When shaking is required, the motors of the upper and lower layers work together to make the rotating platform 420 and the rotating circular ring platform 430 rotate and shake synchronously and coaxially. The shaking mechanism 400 can also be on two tracks. On one track, multiple fixing seats 200 for placing blood transfusion bags and normal saline bags are arranged at intervals on the slider 315, and on the other track, the slider 315 installs the injection seat 300. When replacing the blood transfusion bag, the slider 315 on one track moves, and the other track does not move or one track moves in the opposite direction relative to the other track, so as to switch the positions of different fixing seats 200, so that the blood transfusion tube plug can smoothly switch from one blood transfusion bag to another blood transfusion bag or a normal saline bag. When shaking is required, the two guide rails drive the blood transfusion bag or normal saline bag to shake left and right synchronously and in the same direction.

[0065] In one embodiment, as Figure 2 、 Figure 3 and Figure 4 shown, the first-aid blood transfusion device further includes a pressurizing device 600, and the pressurizing device 600 is arranged in the blood transfusion cavity 110; the controller 500 is electrically connected to the pressurizing device 600 to drive the pressurizing device 600 to guide the blood in the blood transfusion bag into the blood transfusion pipeline.

[0066] Preferably, as Figure 4 、 Figure 5 and Figure 6 shown, the pressurizing device 600 includes a first motor 610, a pump head 620 and a pump tube 630. The pump head 620 includes a housing 621, a rotating block 622 and a plurality of rollers; the housing 621 is provided with an accommodating cavity 624, an inlet 625 connected to the accommodating cavity 624 and an outlet 626 connected to the accommodating cavity 624;

[0067] The rotating block 622 is located in the accommodating cavity 624; the first motor 610 is drivingly connected to the rotating block 622 and drives the rotating block to axially rotate relative to the accommodating cavity 624 of the housing 621; the rotating block 622 is connected with a plurality of extrusion rollers 623, and the plurality of extrusion rollers 623 are distributed around the axis of the rotating block 622; the pump tube 630 enters the housing 621 from the inlet 625 and leaves the housing 621 along the cavity wall of the accommodating cavity 624 from the outlet 626; the pump tube 630 is located between the extrusion rollers 623 and the cavity wall of the accommodating cavity 624 and is squeezed by the extrusion rollers 623.

[0068] Specifically, as Figure 5As shown in the figure, after the first motor 610 is started, it drives the rotating block 622 to rotate axially within the accommodating cavity 624 of the housing 621. A plurality of pressing rollers 623 connected to the rotating block 622 rotate synchronously. Since the pump tube 630 is located between the pressing rollers 623 and the cavity wall of the accommodating cavity 624, as the rollers rotate, the rollers will sequentially press the pump tube 630. At the inlet 625 end, the roller pressing causes a local negative pressure to form in the pump tube 630, thereby sucking the blood in the blood transfusion bag into the pump tube 630; when the roller rotates to the outlet 626 end, the pressing on the pump tube 630 pushes the blood in the tube out, prompting the blood to flow into the blood transfusion pipeline. This pressurizing device 600 can adjust the rotational speed of the first motor 610 through the controller 500 to regulate the working efficiency of the pump, precisely control the blood delivery speed and flow rate, ensure that the blood is stably, quickly and accurately input into the patient's body, gain precious time for saving the patient's life, and at the same time avoid adverse effects on the patient caused by unstable pressure or excessive or too small flow rate, effectively ensuring the safety and efficiency of blood transfusion treatment.

[0069] It can be understood that the pressurizing device 600 can also be a piston pressurizing device 600 composed of a piston cylinder, a piston and a driving mechanism. The piston makes a reciprocating motion within the piston cylinder under the push of the driving mechanism. One-way valves are provided at both ends of the piston cylinder. When the piston moves away from the blood transfusion bag, a negative pressure is formed within the piston cylinder, sucking the blood in the blood transfusion bag into the piston cylinder along the way; when the piston moves towards the blood transfusion bag, pressure is applied to the blood in the cylinder, and under the action of the one-way valve, the blood is pressed into the blood transfusion pipeline through the pipeline.

[0070] Please refer to Figure 7 and Figure 8 , the injection seat 300 includes a base and side walls extending upward from opposite sides of the base. Installation grooves 330 are formed on the side walls; the translation driving mechanism 310 includes a slide rail 311, a driving rack 312, a second motor 313, a driving gear 314 and a slider 315;

[0071] The slide rail 311 is installed on the side wall of the installation groove 330. The slider 315 is slidably connected to the slide rail 311. The driving rack 312 is installed on the slider 315. The driving gear 314 meshes with the driving rack 312. The second motor 313 is drivingly connected to the driving gear 314. The slider 315 extends horizontally to form an extension platform 316. The second pressing mechanism 320 is provided on the side of the extension platform 316 away from the slider 315.

[0072] When it is necessary to adjust the relative position between the blood transfusion tube plug and the blood transfusion interface of the blood transfusion bag, the second motor 313 starts to drive the driving gear 314 to rotate. The driving gear 314 drives the slider 315 equipped with the driving rack 312 to move smoothly along the slide rail 311 in the horizontal direction, thereby driving the second pressing mechanism 320 arranged on the extension table 316 of the slider 315 to move synchronously, thus realizing the precise control of the position of the blood transfusion tube plug, enabling it to approach or move away from the blood transfusion interface of the blood transfusion bag, so as to perform the insertion or extraction operation of the plug.

[0073] Specifically, as Figure 7 shown, the second pressing mechanism 320 includes a first support block 321, a first pressing block 322 and a bolt 323; the first support block 321 is fixed to the extension table 316, the first support block 321 is provided with a settling hole, the bolt 323 is rotatably connected to the settling hole, and the first pressing block 322 is threadedly connected to the bolt 323 and is located between the first support block 321 and the bolt 323. During use, the blood transfusion tube plug is placed between the first support block 321 and the first pressing block 322, and the bolt 323 is rotated. As the bolt 323 rotates, the first pressing block 322 will move along the axial direction of the bolt 323. When the first pressing block 322 moves downward, it will gradually approach the first support block 321 until the blood transfusion tube plug located between the two is tightly clamped, thereby realizing the fixation of the blood transfusion tube plug.

[0074] In one embodiment, as Figure 9 shown, the limiting member 210 is a hook 211; the first pressing mechanism 220 includes a second support block 221, a second pressing block 222 and an elastic member 223; the second support block 221 is fixed on the fixed seat 200, the second support block 221 is connected to the second pressing block 222 through the elastic member 223, and the second pressing block 222 is used to fix the blood transfusion interface of the infusion bag on the second support block 221. During use, the second pressing block 222 is pulled upward, the blood transfusion interface of the blood transfusion bag is placed between the second pressing block 222 and the second support block 221, and the second pressing block 222 is released. Under the action of the elastic element, the second pressing block 222 has a tendency to return to its original position and squeezes the blood transfusion interface to realize its fixation. Preferably, the elastic element can be a spring or a rubber elastomer. It can be understood that the first pressing mechanism 220 and the second pressing mechanism 320 can also be a snap - type pressing mechanism or a magnetic - adsorption type pressing mechanism.

[0075] Preferably, as Figure 2 and Figure 3As shown, a pipe guiding block 700 is further provided in the blood transfusion cavity 110. An output port 626 is formed on the blood transfusion box 100. The pipe guiding block 700 is used to guide the blood transfusion pipe to the output port 626. The pipe guiding block 700 is arranged on one side of the outlet 626 of the injection seat 300 to guide the blood transfusion pipe to be smoothly docked with the pressurizing device 600 arranged in a different plane; it can also be arranged at the outlet 626 end of the pressurizing device 600 (not shown in the figure) to guide the pressurized blood transfusion pipe to the output port 626.

[0076] Preferably, the first-aid blood transfusion device is further provided with a heating device and a temperature sensor (not shown in the figure). The output end of the heating device and the temperature sensor are both installed in the blood transfusion cavity 110; the temperature sensor and the heating device are both electrically connected to the controller 500, and the temperature sensor is used to send temperature information to the controller 500.

[0077] Specifically, the heating device can increase the blood temperature, avoid a sudden drop in the patient's body temperature caused by the infusion of a large amount of low-temperature blood, which may lead to vasoconstriction, shivering, arrhythmia, etc., and ensure safe and comfortable blood transfusion; at the same time, it maintains the activity of blood components, ensures the normal function of coagulation factors, platelets, etc., and guarantees the blood quality. The temperature sensor monitors the blood temperature in the blood transfusion cavity 110 in real time and feeds it back to the controller 500. The controller 500 controls the heating device according to the temperature data provided by the temperature sensor so that the blood in the blood transfusion bag is maintained at a suitable temperature for the human body. When the temperature is low, it starts or increases its power, and after reaching the standard, it is adjusted accordingly to keep the blood temperature constant within the ideal range, preventing the destruction of blood components due to too high temperature, such as protein denaturation and blood cell damage, which not only guarantees the blood transfusion quality, but also reduces the possibility of equipment failure caused by abnormal temperature, improves the safety and reliability of the equipment, and provides strong support for the smooth progress of first-aid blood transfusion.

[0078] The above-described embodiments only represent several implementation manners of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention.

Claims

1. A blood transfusion device for emergency use with a stable flow rate, characterized in that: include: A blood transfusion box (100) having a blood transfusion cavity (110) therein, the blood transfusion box (100) having an opening, the opening being provided with a box cover (120); A fixing seat (200) is arranged on the blood transfusion cavity (110), and two opposite sides of the fixing seat (200) are respectively provided with a limiting member (210) and a first pressing mechanism (220), wherein the limiting member (210) is used to limit one end of the blood transfusion bag, and the first pressing mechanism (220) is used to fix the blood transfusion interface of the blood transfusion bag to the fixing seat (200); An injection seat (300) is arranged in the blood transfusion cavity (110), the injection seat (300) is provided with a translation drive mechanism (310) and a second clamping mechanism (320), the second clamping mechanism (320) is located on the translation drive mechanism (310), the second clamping mechanism (320) is used to fix the plug of the blood transfusion tube on the injection seat (300) and toward the fixing seat (200), and the translation drive mechanism (310) can drive the second clamping mechanism (320) to approach or move away from the first clamping mechanism (220); A shaking mechanism (400) is provided in the blood transfusion cavity (110), and the shaking mechanism (400) is used to drive the fixing seat (200) to shake; A controller (500), the controller (500) being electrically connected to the shaking mechanism (400), the first pressing mechanism (220), the translation driving mechanism (310) and the second pressing mechanism (320); The shaking mechanism (400) comprises a rotating platform (420), a rotating annular platform (430), a second rotating driving mechanism (450) and a third rotating driving mechanism (460); the rotating annular platform (430) is located at the periphery of the rotating platform (420) and is coaxially arranged with the rotating platform (420); A plurality of the fixing seats (200) are arranged in the blood transfusion box (100); the plurality of the fixing seats (200) are all arranged on the rotating annular table (430) and are arranged at intervals in the circumferential direction of the rotating annular table (430); and the injection seat (300) is arranged on the rotating table (420); The second rotation drive mechanism (450) is drivingly connected to the rotating platform (420), and the third rotation drive mechanism (460) is drivingly connected to the rotating annular platform (430).

2. The emergency blood transfusion device according to claim 1, characterized in that: The emergency blood transfusion device further comprises a pressurizing device (600), wherein the pressurizing device (600) is arranged in the blood transfusion cavity (110); The controller (500) is electrically connected to the pressurizing device (600) to drive the pressurizing device (600) to guide the blood in the blood transfusion bag to flow into the blood transfusion blood channel.

3. The emergency blood transfusion device according to claim 2, characterized in that: The pressurizing device (600) comprises a first motor (610), a pump head (620) and a pump tube (630), wherein the pump head (620) comprises a housing (621), a rotating block (622) and a plurality of squeezing rollers (623); The housing (621) is provided with a receiving chamber (624), an inlet (625) connected to the receiving chamber (624), and an outlet (626) connected to the receiving chamber (624); the rotating block (622) is located in the receiving chamber (624); the first motor (610) is drivingly connected to the rotating block (622) and drives the rotating block (622) to rotate axially relative to the receiving chamber (624); The rotating block (622) is connected to a plurality of squeezing rollers (623), and the plurality of squeezing rollers (623) are distributed and rotated around the axial direction of the rotating block (622); The pump tube (630) enters the housing (621) from the inlet (625) and leaves the housing (621) from the outlet (626) along the cavity wall of the accommodating cavity (624); The pump tube (630) is located between the squeezing roller (623) and the cavity wall of the accommodating cavity (624), and is squeezed by the squeezing roller (623).

4. The emergency blood transfusion device according to claim 1, characterized in that: The injection seat (300) comprises a base and side walls extending upward from opposite sides of the base, and the side walls are provided with mounting grooves (330); the translation drive mechanism (310) comprises a slide rail (311), a drive rack (312), a second motor (313), a driving gear (314) and a slider (315); The slide rail (311) is installed on the side wall of the installation groove (330), the slider (315) is slidably connected to the slide rail (311), the driving rack (312) is installed on the slider (315), the driving gear (314) is meshed with the driving rack (312), the second motor (313) is drivingly connected to the driving gear (314), the slider (315) extends in the horizontal direction to form an extension platform (316), and the second clamping mechanism (320) is arranged on a side of the extension platform (316) away from the slider (315).

5. The emergency blood transfusion device according to claim 4, characterized in that: The second clamping mechanism (320) comprises a first support block (321), a first clamping block (322) and a bolt (323); the first support block (321) is fixed to the extension platform (316); the first support block (321) is provided with a sinking hole; the bolt (323) is rotatably connected to the sinking hole; the first clamping block (322) is threadedly connected to the bolt (323) and is located between the first support block (321) and the bolt (323); the first clamping block (322) is used to attach the plug of the infusion pipeline to the first support block (321).

6. The emergency blood transfusion device according to claim 1, characterized in that: The limiting member (210) is a hook (211); The first pressing mechanism (220) comprises a second supporting block (221), a second pressing block (222) and an elastic component (223); The second support block (221) is fixed on the fixing seat (200), the second support block (221) is connected to the second pressing block (222) via an elastic component (223), and the second pressing block (222) is used to fix the blood transfusion interface of the infusion bag on the second support block (221).

7. The emergency blood transfusion device according to claim 1, characterized in that: A pipeline guide block (700) is also provided in the blood transfusion cavity (110); The blood transfusion box (100) is provided with an output port (626), and the pipeline guide block (700) is used to guide the blood transfusion channel to the output port (626).

8. The emergency blood transfusion device according to claim 1, characterized in that: The emergency blood transfusion device is also provided with a heating device and a temperature sensor, and the output end of the heating device and the temperature sensor are both installed in the blood transfusion cavity (110); The temperature sensor and the heating device are both electrically connected to the controller (500), and the temperature sensor is used to send temperature information to the controller (500).

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