Automatic pressurization constant-temperature blood transfusion frame for hematology department

Abstract

The invention relates to the technical field of blood transfusion auxiliary equipment, and discloses an automatic pressurizing constant-temperature blood transfusion frame for hematology departments, which comprises a movable bottom frame, a telescopic support column, a functional box body and a controller, pressurizing opposite-extrusion mechanisms are symmetrically arranged in the functional box body, and each pressurizing opposite-extrusion mechanism comprises two vertical fixing rods; the outer portions of the two vertical fixing rods are slidably connected with sliding blocks, a horizontal connecting rod is fixedly connected between the two sliding blocks, the outer portion of the horizontal connecting rod is rotatably connected with a balance weight extrusion roller, and heating and heat preservation mechanisms are further symmetrically arranged in the functional box body and comprise heat preservation bins. The outer side of the heat preservation bin is fixedly connected with a soft heat preservation rubber film. According to the invention, the symmetrical counterweight extrusion rollers can gradually extrude the blood transfusion bag downwards due to the gravity of the rollers, so that the blood under pressure can be completely infused; the soft heat preservation rubber film can be attached to the front face or the back face of the blood transfusion bag all the time, so that constant-temperature transfusion of blood under pressure is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of blood transfusion auxiliary equipment, and in particular to an automatic pressurized constant temperature blood transfusion stand for hematology. Background Art

[0002] Blood transfusion refers to a treatment method of infusing blood into a patient through a vein, and is widely used in hematology. When transfusing blood, a suitable blood transfusion auxiliary rack must be selected. The blood transfusion rack can have pressurization and heating functions. The pressurization function can ensure that the blood in the infusion bag can flow into the patient's vein at a predetermined speed, which is especially important for situations that require rapid transfusion or adjustment of the transfusion speed. The heating function can keep the blood close to human body temperature during transfusion to reduce the risk of complications caused by cold blood transfusion. That is, the blood transfusion rack with pressurization and heating functions can ensure the effectiveness and safety of the transfusion process, thereby effectively improving the patient's treatment effect.

[0003] After searching, the Chinese invention patent with publication number CN107737388A discloses a blood transfusion auxiliary device for hematology that is convenient for pressurization and heating, including a mounting column, a universal wheel, a lifting mechanism, and a placement and heating mechanism. The bottom of the mounting column is evenly connected with a universal wheel, and the mounting column is provided with a lifting mechanism. The top of the lifting mechanism is connected with a placement and heating mechanism. The lifting mechanism includes a slide rail, a slider, a lifting rod, a guide wheel, an electric winding wheel and a wire rope. The placement and heating mechanism includes a placement box, a protective cover, an electric heating wire, a hook, a filter frame and a through hole. Compared with the prior art, the Chinese invention patent with publication number CN107737388A can heat and pressurize the blood transfusion bag during the blood transfusion process, and can adjust the height of the device.

[0004] However, in the process of pressurizing the blood in the blood transfusion bag by the squeezing ball, the squeezing method of the squeezing ball from bottom to top may cause residual blood in the blood transfusion bag, that is, it is difficult to achieve complete infusion of pressurized blood by this squeezing method, thus causing a waste of part of the blood in the blood transfusion bag; and in the process of heating the blood in the blood transfusion bag by the electric heating wire, the electric heating wire heats the air in a way that the heat distribution around the blood transfusion bag is uneven, that is, it is difficult to achieve constant temperature infusion of pressurized blood by this heating method, thus affecting the safety of the pressurized blood infusion process. Therefore, there is a need for an automatic pressurized constant temperature blood transfusion stand for hematology that can achieve complete infusion and constant temperature infusion of pressurized blood. Summary of the invention

[0005] The purpose of the present invention is to solve the disadvantage that it is difficult to achieve complete infusion and constant temperature infusion of pressurized blood in the prior art, and to propose an automatic pressurized constant temperature blood transfusion stand for hematology.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] The control box is provided with a plurality of control rods, each of which is provided with a plurality of control rods, and the control rods are provided with a plurality of control rods, each of which is provided with a plurality of control rods, and the control rods are provided with a plurality of control rods.

[0008] The interior of the functional box body is also symmetrically provided with a heating and heat-insulating mechanism for heating and keeping the blood transfusion bag warm, the heating and heat-insulating mechanism includes a heat-insulating bin fixedly connected to the interior of the functional box body, a soft heat-insulating rubber film that fits the front or back of the blood transfusion bag is fixedly connected to the outside of the heat-insulating bin, and water is filled between the heat-insulating bin and the soft heat-insulating rubber film; the water filled between the heat-insulating bin and the soft heat-insulating rubber film will always fit the front or back of the blood transfusion bag due to its own gravity.

[0009] The above technical solution further includes:

[0010] The functional box body includes a magnetic fixed half box fixedly connected to the top of the telescopic support and a magnetic movable half box hinged to the outside of the magnetic fixed half box, the magnetic fixed half box and the magnetic movable half box are also provided with external lock buckles on the outside, the inner top of the magnetic fixed half box is provided with a top hook for hanging a blood transfusion bag, and the bottoms of the magnetic fixed half box and the magnetic movable half box are both provided with bottom through holes for passing a blood transfusion tube; after opening the magnetic movable half box, the hanging edge of the top of the blood transfusion bag is hung on the top hook, and the blood transfusion tube is placed in the bottom through hole, so that the placement of the blood transfusion bag and the blood transfusion tube can be completed.

[0011] A buzzer connected to the controller is installed on the top of the magnetic fixed half box, and an optical transmitting sensor and an optical receiving sensor that are opposite to each other and connected to the controller are installed inside the symmetrical bottom through hole; when the blood inside the blood transfusion tube passes through the positions of the optical transmitting sensor and the optical receiving sensor and is completely transfused, the optical receiving sensor transmits a signal to the controller, so that the controller starts the buzzer, thereby prompting the hematology medical staff to replace the blood transfusion bag.

[0012] The symmetrical pressurizing and squeezing mechanisms are respectively arranged inside the magnetic fixed half box and the magnetic movable half box, and the symmetrical heating and heat preservation mechanisms are also respectively arranged inside the magnetic fixed half box and the magnetic movable half box.

[0013] The resistance adjusting component includes two vertical U-shaped air pressure tubes fixedly connected to the inside of the magnetic fixed half box or the magnetic movable half box, and elastic piston rods are arranged inside both ends of the two vertical U-shaped air pressure tubes, and the ends of the two elastic piston rods on the same side are fixedly connected to a side connecting plate; the resistance adjusting component also includes two elastic damping blocks respectively installed on the outside of the two sliding blocks, and the outsides of the two elastic damping blocks are respectively in contact with the inner sides of the two side connecting plates; when gas pressure is applied to the inside of the vertical U-shaped air pressure tube, the elastic piston rods at both ends of the U-shaped air pressure tube will drive the side connecting plate to approach or move away from the elastic damping block to change the resistance of the downward movement of the counterweight extrusion roller, thereby achieving the purpose of adjusting the pressurization degree of the counterweight extrusion roller.

[0014] The resistance regulating component also includes an air pump installed on the top of the magnetic fixed half box or the magnetic movable half box, the air pump input end is connected to the controller, the air pump outlet is fixedly connected to an L-shaped air pressure tube, the end of the L-shaped air pressure tube away from the air pump is fixedly connected to a horizontal U-shaped air pressure tube connected to the two vertical U-shaped air pressure tubes, and a pressure relief valve connected to the controller is arranged on the outside of the L-shaped air pressure tube; by applying gas pressure by the air pump, the resistance of the counterweight extrusion roller to the downward movement can be increased to reduce the degree of pressurization, and by releasing gas through the pressure relief valve, the resistance of the counterweight extrusion roller to the downward movement can be reduced to increase the degree of pressurization.

[0015] A constant temperature heater and a temperature sensor connected to the controller are installed inside the insulation bin; the water filled between the insulation bin and the soft insulation rubber membrane covers the constant temperature heater and the temperature sensor; the soft insulation rubber membrane is in contact with the front or back of the blood transfusion bag through the filled water; the water between the insulation bin and the soft insulation rubber membrane will always be in contact with the front or back of the blood transfusion bag due to its own gravity, so as to achieve heating and insulation of the blood inside the blood transfusion bag.

[0016] The top of the insulation bin is provided with a water inlet pipe extending to the top of the magnetic fixed half box or the magnetic movable half box, and the bottom of the insulation bin is provided with a drainage pipe extending to the bottom of the magnetic fixed half box or the magnetic movable half box; water can be added to the space between the insulation bin and the soft insulation rubber membrane through the water inlet pipe, and the water between the insulation bin and the soft insulation rubber membrane can be discharged through the drainage pipe.

[0017] The present invention has the following beneficial effects:

[0018] 1. In the process of blood transfusion, the symmetrical counterweight squeezing rollers can squeeze the front and back sides of the infusion bag so that the blood in the blood transfusion bag can be infused under pressure. The blood infusion speed can be adjusted by adjusting the squeezing force of the symmetrical counterweight squeezing rollers on the front and back sides of the infusion bag. The symmetrical counterweight squeezing rollers can gradually squeeze the blood transfusion bag downward due to their own gravity so that the pressurized blood can be completely infused.

[0019] 2. The present invention can preset an extrusion value that matches the blood infusion speed through a controller, and monitor the extrusion force on the front and back sides of the blood transfusion bag in real time through a pressure sensor. If the actual extrusion value monitored by the pressure sensor is greater than the preset extrusion value, it means that the blood infusion speed at this time is greater than the predetermined infusion speed. The controller will start the air booster pump to make the side connecting plate close to the elastic damping block, thereby increasing the resistance of the counterweight extrusion roller to the downward movement to reduce the blood infusion speed. If the actual extrusion value monitored by the pressure sensor is less than the preset extrusion value, it means that the blood infusion speed at this time is less than the predetermined infusion speed. The controller will start the pressure relief valve to make the side connecting plate away from the elastic damping block, thereby reducing the resistance of the counterweight extrusion roller to the downward movement to increase the blood infusion speed.

[0020] 3. The present invention can preset a temperature value corresponding to blood infusion through a controller, heat and keep the water body warm through a constant temperature heater, and monitor the temperature value of the water body in real time through a temperature sensor. The water body filled between the insulation bin and the soft insulation rubber film has good thermal conductivity, and the water body filled between the insulation bin and the soft insulation rubber film will always fit the soft insulation rubber film with the front or back of the blood transfusion bag due to its own gravity. That is, the present invention can evenly heat and keep the blood warm as the amount of blood in the blood transfusion bag changes, thereby realizing constant temperature infusion of pressurized blood. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a first overall structural schematic diagram of an automatic pressurized constant temperature blood transfusion stand for hematology department proposed by the present invention;

[0022] Figure 2 This is a second overall structural schematic diagram of an automatic pressurized constant temperature blood transfusion stand for hematology department proposed by the present invention;

[0023] Figure 3 It is a schematic diagram of the internal structure of the functional box body in the present invention;

[0024] Figure 4 for Figure 3 A schematic diagram of the structure enlargement in the middle;

[0025] Figure 5 It is a schematic diagram of the external structure of the functional box body in the present invention;

[0026] Figure 6 It is a schematic diagram of the side section structure of the functional box body in the present invention;

[0027] Figure 7 for Figure 6 A magnified schematic diagram of the structure at B in the middle;

[0028] Figure 8 for Figure 6 Enlarged schematic diagram of the structure at point C in the middle.

[0029] In the figure: 10, movable chassis; 20, telescopic support; 30, functional box; 31, magnetic fixed half box; 32, magnetic movable half box; 33, top hook; 34, bottom through hole; 35, buzzer; 36, optical transmitting sensor; 37, optical receiving sensor; 40, controller; 50, blood transfusion bag; 60, blood transfusion tube; 70, pressurized squeezing mechanism; 71, vertical fixed rod; 72, sliding block; 73, horizontal connecting rod; 74, counterweight Extrusion roller; 75, U-shaped mounting frame; 76, pressure sensor; 77, vertical U-shaped air pressure tube; 78, elastic piston rod; 79, side connecting plate; 80, elastic damping block; 81, air booster pump; 82, L-shaped air pressure tube; 83, transverse U-shaped air pressure tube; 84, pressure relief valve; 90, heating and heat preservation mechanism; 91, heat preservation chamber; 92, soft heat preservation rubber membrane; 93, constant temperature heater; 94, temperature sensor; 95, water inlet pipe; 96, drain pipe. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] Embodiment 1

[0032] like Figure 1-Figure 8As shown, the present invention proposes an automatic pressurized constant temperature blood transfusion stand for hematology, comprising a mobile base frame 10, a telescopic support 20 fixedly connected to the top of the mobile base frame 10, a functional box body 30 arranged on the top of the telescopic support 20, and a controller 40 installed outside the functional box body 30. The mobile base frame 10 has a certain counterweight to maintain the balance of the functional box body 30 when it is opened. The telescopic height of the telescopic support 20 is fixed by the fastening bolts outside the telescopic support 20. The functional box body 30 includes a magnetic fixed half box 31 fixedly connected to the top of the telescopic support 20 and a magnetic movable half box hinged to the outside of the magnetic fixed half box 31. 32, the magnetic fixed half box 31 and the magnetic movable half box 32 are also provided with external lock buckles on the outside, and the external lock buckles can increase the connectivity between the magnetic fixed half box 31 and the magnetic movable half box 32. The inner top of the magnetic fixed half box 31 is provided with a top hook 33 for hanging the blood transfusion bag 50. The bottoms of the magnetic fixed half box 31 and the magnetic movable half box 32 are both provided with bottom through holes 34 for passing the blood transfusion tube 60. After opening the magnetic movable half box 32, the hanging edge of the top of the blood transfusion bag 50 is hung on the top hook 33, and the blood transfusion tube 60 is placed inside the bottom through hole 34, and the placement of the blood transfusion bag 50 and the blood transfusion tube 60 can be completed;

[0033] A buzzer 35 connected to the controller 40 is installed on the top of the magnetically fixed half box 31, and an optical transmitting sensor 36 and an optical receiving sensor 37 are installed in the symmetrical bottom through hole 34, which are opposite to each other and connected to the controller 40. When the blood in the blood transfusion bag 60 passes through the position of the optical transmitting sensor 36 and the optical receiving sensor 37, the optical receiving sensor 37 transmits a signal to the controller 44, so that the controller 44 activates the buzzer 35, thereby prompting the medical staff of the hematology department to replace the blood transfusion bag 50;

[0034] The inside of the functional box body 30 is symmetrically provided with a pressurizing and squeezing mechanism 70 for pressurizing and squeezing the blood transfusion bag 50. The symmetrical pressurizing and squeezing mechanisms 70 are respectively arranged inside the magnetic fixed half box 31 and the magnetic movable half box 32. The pressurizing and squeezing mechanism 70 includes two vertical fixed rods 71 ​​fixedly connected to the inside of the functional box body 30. The outsides of the two vertical fixed rods 71 ​​are slidably connected to sliding blocks 72. A horizontal connecting rod 73 is fixedly connected between the two sliding blocks 72. The outside of the horizontal connecting rod 73 is rotatably connected to a sliding block 72 located on the front or back of the blood transfusion bag 50. The counterweight squeezing roller 74, the symmetrical counterweight squeezing roller 74 can cooperate from top to bottom to pressurize the blood transfusion bag 50, and the pressurized blood transfusion bag 50 can promote the infusion speed of the blood inside it. The outside of the horizontal connecting rod 73 is also fixedly connected to a U-shaped mounting frame 75 located outside the counterweight squeezing roller 74. The bottom of the U-shaped mounting frame 75 is installed with a pressure sensor 76 that contacts the front or back of the blood transfusion bag 50 and is connected to the controller 40. The pressure sensor 76 can monitor the squeezing force on the blood transfusion bag 50 under the symmetrical counterweight squeezing roller 74 in real time;

[0035] A resistance adjusting member is also provided between the two sliding blocks 72, and the resistance adjusting member includes two vertical U-shaped air pressure tubes 77 fixedly connected to the inside of the magnetic fixed half box 31 or the magnetic movable half box 32, and elastic piston rods 78 are provided inside the two ends of the two vertical U-shaped air pressure tubes 77, and the ends of the two elastic piston rods 78 on the same side are fixedly connected to the side connecting plate 79, and the resistance adjusting member also includes two elastic damping blocks 80 respectively installed on the outside of the two sliding blocks 72, and the outsides of the two elastic damping blocks 80 are respectively in contact with the inner sides of the two side connecting plates 79. When gas pressure is applied to the inside of the vertical U-shaped air pressure tube 77, the elastic piston rods 78 at both ends of the U-shaped air pressure tube 77 will drive the side connecting plate 79 to approach or move away from the elastic damping block 80 on the outside of the sliding block 72, so as to change the resistance of the downward movement of the counterweight extrusion roller 74, thereby achieving the purpose of adjusting the pressurization degree of the counterweight extrusion roller 74;

[0036] The resistance regulating member also includes an air pump 81 installed on the top of the magnetic fixed half box 31 or the magnetic movable half box 32. The input end of the air pump 81 is connected to the controller 40. The air outlet of the air pump 81 is fixedly connected to an L-shaped air pressure pipe 82. The end of the L-shaped air pressure pipe 82 away from the air pump 81 is fixedly connected to a transverse U-shaped air pressure pipe 83 connected to two vertical U-shaped air pressure pipes 77. The outside of the L-shaped air pressure pipe 82 is provided with a pressure relief valve 84 connected to the controller 40. The pressure of the counterweight extrusion roller 74 needs to be reduced. When the pressure level of the counterweight squeezing roller 74 needs to be increased to increase the infusion speed of the pressurized blood, the gas can be released through the pressure relief valve 84 to reduce the resistance to the downward movement of the counterweight squeezing roller 74 to increase the pressure level.

[0037] Working principle of this embodiment: when the hematology medical worker needs to transfuse blood to the patient, the blood transfusion stand can be moved to a suitable position by the movable base frame 1, and the working height of the blood transfusion stand can be adjusted by the telescopic support 20, and then the magnetic movable half box 32 is opened, the hanging edge of the top of the blood transfusion bag 50 is hung on the top hook 33, and the blood transfusion tube 60 is placed in the bottom through hole 34, and then the magnetic movable half box 32 is closed, so that the blood transfusion bag 50 and the blood transfusion tube 60 can be placed;

[0038] After that, intravenous infusion of blood can be performed. During the blood infusion process, the symmetrical counterweight squeezing rollers 74 can squeeze the front and back sides of the infusion bag 50 so that the blood in the blood transfusion bag 50 can be infused under pressure. By adjusting the squeezing force of the symmetrical counterweight squeezing rollers 74 on the front and back sides of the infusion bag 50, the blood infusion speed can be adjusted. At the same time, the symmetrical counterweight squeezing rollers 74 can gradually squeeze the blood transfusion bag 50 downward due to their own gravity so that the pressurized blood can be completely infused.

[0039] In order to ensure that the blood in the infusion bag 50 can flow into the patient's vein at a predetermined speed, the controller 40 can preset an extrusion value that matches the blood infusion speed, and the pressure sensor 76 can monitor the extrusion force on the front and back of the blood transfusion bag 50 in real time;

[0040] During the blood transfusion process, if the actual squeezing value monitored by the pressure sensor 76 is greater than the preset squeezing value, it means that the squeezing force of the symmetrical weighted squeezing roller 74 on the front and back sides of the blood transfusion bag 50 is too large, and the blood transfusion speed at this time is greater than the preset infusion speed, and the controller 40 will start the air booster pump 81 to apply gas pressure to the L-shaped air pressure tube 82, the horizontal U-shaped air pressure tube 83 and the vertical U-shaped air pressure tubes 77 on both sides, so that the elastic piston rods 78 on both sides extend outward and drive the side connecting plate 79 to approach the elastic damping block 80 on the outside of the sliding block 72, that is, it can increase the sliding resistance between the sliding block 72 and the side connecting plate 79 and increase the resistance of the weighted squeezing roller 74 to move downward, thereby reducing the squeezing force of the symmetrical weighted squeezing roller 74 on the front and back sides of the blood transfusion bag 50 until the actual squeezing value monitored by the pressure sensor 76 is consistent with the preset squeezing value, so that the blood transfusion speed can be reduced;

[0041] During the blood infusion process, if the actual squeezing value monitored by the pressure sensor 76 is less than the preset squeezing value, it means that the squeezing force of the symmetrical counterweight squeezing roller 74 on the front and back sides of the blood transfusion bag 50 is too small, and the blood infusion speed at this time is less than the preset infusion speed. The controller 40 will start the pressure relief valve 84 to release the gas inside the L-shaped air pressure tube 82, so that the elastic piston rods 78 on both sides are reset inward and drive the side connecting plate 79 away from the elastic damping block 80 on the outside of the sliding block 72, that is, it can reduce the sliding resistance between the sliding block 72 and the side connecting plate 79 and reduce the resistance of the counterweight squeezing roller 74 to move downward, thereby increasing the squeezing force of the symmetrical counterweight squeezing roller 74 on the front and back sides of the blood transfusion bag 50 until the actual squeezing value monitored by the pressure sensor 76 is consistent with the preset squeezing value, thereby increasing the blood infusion speed.

[0042] The main difference between this embodiment and the prior art is that: while this embodiment uses the symmetrical counterweight squeezing rollers 74 to squeeze the front and back sides of the infusion bag 50 to achieve pressurized infusion, the symmetrical counterweight squeezing rollers 74 can gradually squeeze the blood transfusion bag 50 downward due to their own gravity so that the pressurized blood can be completely infused. At the same time, the squeezing force of the symmetrical counterweight squeezing rollers 74 on the front and back sides of the infusion bag 50 is adjustable so that the speed of blood infusion can be adjusted.

[0043] Embodiment 2

[0044] like Figure 1-Figure 3 and Figure 6 As shown, based on the first embodiment, a heating and heat preservation mechanism 90 for heating and heat preservation of the blood transfusion bag 50 is symmetrically arranged inside the functional box body 30, and the symmetrical heating and heat preservation mechanism 90 is also respectively arranged inside the magnetic fixed half box 31 and the magnetic movable half box 32, and the heating and heat preservation mechanism 90 includes a heat preservation bin 91 fixedly connected to the inside of the functional box body 30, and a water inlet pipe 95 extending to the top of the magnetic fixed half box 31 or the magnetic movable half box 32 is arranged on the top of the heat preservation bin 91, and water can be added between the heat preservation bin 91 and the soft heat preservation rubber membrane 92 through the water inlet pipe 95, and a drain pipe 96 extending to the bottom of the magnetic fixed half box 31 or the magnetic movable half box 32 is arranged at the bottom of the heat preservation bin 91, and the water between the heat preservation bin 91 and the soft heat preservation rubber membrane 92 can be discharged through the drain pipe 96;

[0045] The outer side of the heat preservation bin 91 is fixedly connected with a soft heat preservation rubber membrane 92 which fits with the front or back side of the blood transfusion bag 50. Water is filled between the heat preservation bin 91 and the soft heat preservation rubber membrane 92. A constant temperature heater 93 and a temperature sensor 94 which are connected to the controller 40 are installed inside the heat preservation bin 91. The water filled between the heat preservation bin 91 and the soft heat preservation rubber membrane 92 covers the constant temperature heater 93 and the temperature sensor 94. When the constant temperature heater 93 heats the water to a preset temperature, it stops heating the water and keeps the water warm. The soft heat preservation rubber membrane 92 fits with the front or back side of the blood transfusion bag 50 through the filled water. When the symmetrical counterweight squeezing rollers 74 gradually squeeze the blood transfusion bag 50 downward due to their own gravity, the water between the heat preservation bin 91 and the soft heat preservation rubber membrane 92 will, due to its own gravity, make the soft heat preservation rubber membrane 92 always fit with the front or back side of the blood transfusion bag 50, so as to achieve heating and insulation of the blood inside the blood transfusion bag 50.

[0046] Working principle of this embodiment: During the blood infusion process, in order to ensure that the blood in the infusion bag 50 can flow into the patient's vein at a predetermined temperature, the controller 40 can preset a temperature value corresponding to the blood infusion, and the water filled between the insulation chamber 91 and the soft insulation rubber film 92 is heated by the constant temperature heater 93, and the temperature value of the water is monitored in real time by the temperature sensor 94. When the constant temperature heater 93 heats the water to the preset temperature, the constant temperature heater 93 stops heating the water and keeps the water warm;

[0047] The water filled between the insulation bin 91 and the soft insulation rubber film 92 has good thermal conductivity. When the symmetrical counterweight squeezing roller 74 gradually squeezes the blood transfusion bag 50 downward due to its own gravity, the water filled between the insulation bin 91 and the soft insulation rubber film 92 will always fit the soft insulation rubber film 92 with the front or back of the blood transfusion bag 50 due to its own gravity.

[0048] The main difference between this embodiment and the prior art is that the water filled between the insulation bin 91 and the soft insulation rubber film 92 in this embodiment has good thermal conductivity, and the water filled between the insulation bin 91 and the soft insulation rubber film 92 will always fit the soft insulation rubber film 92 with the front or back of the blood transfusion bag 50 due to its own gravity, that is, this embodiment can evenly heat and insulate the blood as the amount of blood in the blood transfusion bag 50 changes, thereby realizing constant temperature infusion of pressurized blood.

[0049] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic pressurized constant temperature blood transfusion stand for hematology, comprising a mobile base frame (10), a telescopic support (20) fixedly connected to the top of the mobile base frame (10), a functional box body (30) arranged on the top of the telescopic support (20), and a controller (40) installed outside the functional box body (30), characterized in that: The function box (30) is symmetrically provided with a pressurizing and squeezing mechanism (70) for pressurizing and squeezing the blood transfusion bag (50), the pressurizing and squeezing mechanism (70) comprising two vertical fixed rods (71) fixedly connected to the function box (30), the outsides of the two vertical fixed rods (71) are slidably connected with sliding blocks (72), a horizontal connecting rod (73) is fixedly connected between the two sliding blocks (72), the outside of the horizontal connecting rod (73) is rotatably connected with a counterweight squeezing roller (74) located on the front or back side of the blood transfusion bag (50), the outside of the horizontal connecting rod (73) is also fixedly connected with a U-shaped mounting frame (75) located on the outside of the counterweight squeezing roller (74), the bottom of the U-shaped mounting frame (75) is provided with a pressure sensor (76) in contact with the front or back side of the blood transfusion bag (50) and connected to the controller (40), and a resistance regulating member is also provided between the two sliding blocks (72); The functional box body (30) is also symmetrically provided with a heating and heat preservation mechanism (90) for heating and heat preservation of the blood transfusion bag (50), the heating and heat preservation mechanism (90) comprising a heat preservation chamber (91) fixedly connected to the interior of the functional box body (30), the outer side of the heat preservation chamber (91) is fixedly connected with a soft heat preservation rubber film (92) which is in contact with the front or back side of the blood transfusion bag (50), and the space between the heat preservation chamber (91) and the soft heat preservation rubber film (92) is filled with water.

2. The automatic pressurized constant temperature blood transfusion stand for hematology according to claim 1, characterized in that: The functional box body (30) comprises a magnetic fixed half box (31) fixedly connected to the top of the telescopic support (20) and a magnetic movable half box (32) hinged to the outside of the magnetic fixed half box (31); the outsides of the magnetic fixed half box (31) and the magnetic movable half box (32) are also provided with external lock buckles; the inner top of the magnetic fixed half box (31) is provided with a top hook (33) for hanging a blood transfusion bag (50); the bottoms of the magnetic fixed half box (31) and the magnetic movable half box (32) are both provided with bottom through holes (34) for passing a blood transfusion blood bag (60).

3. The automatic pressurized constant temperature blood transfusion stand for hematology according to claim 2, characterized in that: A buzzer (35) connected to the controller (40) is installed on the top of the magnetically fixed half box (31), and an optical transmitting sensor (36) and an optical receiving sensor (37) opposite to each other and connected to the controller (40) are installed inside the symmetrical bottom through hole (34).

4. The automatic pressurized constant temperature blood transfusion stand for hematology according to claim 2, characterized in that: The symmetrical pressurizing and squeezing mechanisms (70) are respectively arranged inside the magnetic fixed half box (31) and the magnetic movable half box (32), and the symmetrical heating and heat preservation mechanisms (90) are also respectively arranged inside the magnetic fixed half box (31) and the magnetic movable half box (32).

5. The automatic pressurized constant temperature blood transfusion stand for hematology according to claim 2, characterized in that: The resistance adjusting member comprises two vertical U-shaped air pressure tubes (77) fixedly connected to the inside of the magnetic fixed half box (31) or the magnetic movable half box (32), elastic piston rods (78) are arranged inside both ends of the two vertical U-shaped air pressure tubes (77), and the ends of the two elastic piston rods (78) on the same side are fixedly connected to a side connecting plate (79); The resistance adjusting member further comprises two elastic damping blocks (80) respectively mounted on the outsides of the two sliding blocks (72), and the outsides of the two elastic damping blocks (80) are respectively in contact with the insides of the two side connecting plates (79).

6. The automatic pressurized constant temperature blood transfusion stand for hematology according to claim 5, characterized in that: The resistance regulating component also includes an air pump (81) installed on the top of the magnetic fixed half box (31) or the magnetic movable half box (32); the input end of the air pump (81) is connected to the controller (40); the air outlet of the air pump (81) is fixedly connected to an L-shaped air pressure pipe (82); one end of the L-shaped air pressure pipe (82) away from the air pump (81) is fixedly connected to a transverse U-shaped air pressure pipe (83) connected to the two vertical U-shaped air pressure pipes (77); and a pressure relief valve (84) connected to the controller (40) is arranged on the outside of the L-shaped air pressure pipe (82).

7. The automatic pressurized constant temperature blood transfusion stand for hematology according to claim 1, characterized in that: A constant temperature heater (93) and a temperature sensor (94) connected to the controller (40) are installed inside the heat preservation chamber (91); the water filled between the heat preservation chamber (91) and the soft heat preservation rubber membrane (92) covers the constant temperature heater (93) and the temperature sensor (94); and the soft heat preservation rubber membrane (92) is in contact with the front or back side of the blood transfusion bag (50) through the filled water.

8. The automatic pressurized constant temperature blood transfusion stand for hematology according to claim 2, characterized in that: The top of the heat preservation bin (91) is provided with a water inlet pipe (95) extending to the top of the magnetic fixed half box (31) or the magnetic movable half box (32), and the bottom of the heat preservation bin (91) is provided with a drainage pipe (96) extending to the bottom of the magnetic fixed half box (31) or the magnetic movable half box (32).

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