Portable blood transfusion and transfusion heating instrument

Abstract

The portable blood transfusion and transfusion heating instrument comprises a heating instrument body arranged on the outer side of a blood bag, a Y-shaped tube is inserted into the bottom end of the blood bag through a bottle stopper puncture outfit, one end of the Y-shaped tube is connected with a transfusion tube, a backflow opening is formed in the bottom of the right side of the blood bag, the heating instrument body comprises a supporting plate, and a hanging ring is fixedly connected to the top of the supporting plate. By arranging a series of structures, automatic temperature control heating of a blood bag is facilitated, heating accuracy is improved, conveying discomfort caused by cold blood is reduced, blood transfusion comfort is improved, real-time monitoring of pressure changes is facilitated, the through-flow direction is automatically switched according to the pressure for temporary closure of transfusion, bubbles of the blood are eliminated, and the blood transfusion safety is improved. The device is simple in structure and convenient to use, large discomfort and influence on a patient during blood transfusion caused by many bubbles are reduced, the use effect is improved, the heating instrument body can be conveniently separated from the disposable blood bag, the heating instrument body can be conveniently recycled, and the practicability of the device is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of infusion heating, in particular to a portable blood and infusion warming device. Background Art

[0002] Blood transfusion refers to a treatment method in which blood is infused into a patient through a vein. It is widely used clinically. Viennese pathologist Landsteiner provided a solid pathophysiological basis for blood transfusion. It can also be called a type of infusion. Blood transfusion in a narrow sense refers to the transfusion of whole blood. Blood transfusion in a broad sense refers to the transfusion of various tangible or intangible components prepared from blood, including whole blood. Hematopoietic stem cells (bone marrow or peripheral blood) are also considered a special type of blood transfusion. Disposable blood bags are blood carriers for blood transfusion. To ensure the comfort of blood transfusion, a flexible electric heating sleeve is often wrapped around the outside of the blood bag 100 for heating, so as to reduce the discomfort caused by the cold blood during transportation.

[0003] The heating device used in the existing disposable blood bags has the following shortcomings when used: when heated, the inside of the blood bag inevitably expands, resulting in a large number of bubbles in the blood. The large number of bubbles causes great discomfort to the patient during blood transfusion, and it is difficult to automatically perform temporary interception and eliminate bubbles in the blood, which causes great discomfort and impact to the blood transfusion. In view of this, the present application proposes a portable blood transfusion and infusion warmer. Summary of the Invention

[0004] The portable blood transfusion and infusion warmer proposed in the present invention solves the problems raised in the above background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a portable blood transfusion and infusion warmer, comprising a warmer body disposed outside a blood bag, wherein a Y-shaped tube is inserted into the bottom end of the blood bag via a bottle stopper puncture device, and one end of the Y-shaped tube is connected to an infusion tube, and a reflux port is provided at the right bottom of the blood bag. The warmer body comprises: A support plate, the top of which is fixedly connected with a hanging ring; The PLC controller is fixedly connected to the top right side of the support plate; Two sets of connecting straps are fixedly connected to the left side of the support plate; The wrap-around pressure-measuring, temperature-controlling and heating assembly is movably wrapped around the outside of the blood bag and fixedly connected to the left end of the upper connecting belt, and is electrically connected to the PLC controller. The wrap-around pressure-measuring, temperature-controlling and heating assembly is used to control the temperature and heating of the blood bag under the control of the PLC controller, and is used to detect pressure when the blood bubbles and the blood bag expand due to heating, and transmit the pressure value to the PLC controller. The switchable pressure-sealed flow-through assembly is sleeved on the outside of the two branches of the Y-shaped tube and fixedly connected to the left end of the connecting belt below and electrically connected to the PLC controller. The switchable pressure-sealed flow-through assembly is used to be controlled by the PLC controller to seal the left branch of the Y-shaped tube and unseal the right branch when the pressure value exceeds the preset value; The reflux defoaming component is installed at the bottom left side of the support plate and is connected to the branch on the right side of the Y-shaped tube and the reflux port of the blood bag. The reflux defoaming component is used to be controlled by the PLC controller to extract the blood with bubbles through the unsealed branch on the right side when the pressure value exceeds the preset value, and then defoam the blood and supply it to the blood bag for reuse.

[0006] Preferably, the wrap-around pressure measurement and temperature control heating component includes an elastic thermal insulation film, which is fixedly connected to the left end of the upper connecting belt, and the elastic thermal insulation film is wrapped around the outside of the blood bag. Two male Velcro strips are bonded and fixed to the left side of the front of the elastic thermal insulation film, and two female Velcro strips are bonded and fixed to the right side of the front of the elastic thermal insulation film, and the male Velcro strips are adhered to the corresponding female Velcro strips. A heat-conducting water belt is embedded and fixed on the inner side of the elastic heat-insulating film, and the heat-conducting water belt is movably wrapped around the outside of the blood bag. An electric heater is embedded and fixed on the right side of the elastic heat-insulating film, and the heating end of the electric heater extends into the heat-conducting water belt. A pressure sensor that is in movably contact with the outside of the blood bag is fixedly connected to the heat-conducting water belt. A temperature sensor that is in movably contact with the right bottom of the blood bag is fixedly connected to the elastic heat-insulating film. The electric heater, pressure sensor and temperature sensor are all electrically connected to the PLC controller.

[0007] Preferably, the switchable pressure-sealed flow-through component includes a box-shaped plate with an opening at the bottom, the box-shaped plate is fixedly connected to the left end of the connecting belt below, the top of the box-shaped plate is provided with two card-releasing holes with openings on the front sides, the two branches of the Y-shaped tube are pressed and clamped in the corresponding card-releasing holes, rectangular through holes are provided on the inner walls on both sides of the box-shaped plate, the rectangular through holes are connected with the corresponding card-releasing holes, a rectangular clamping sleeve is fixedly connected to the top inner wall of the box-shaped plate, a rectangular pressure plate is provided on the sliding sleeve inside the rectangular clamping sleeve, rubber pressure blocks are bonded and fixed on both sides of the rectangular pressure plate, the rubber pressure block on the right side movably passes through the rectangular through hole on the right side and is pressed against the branch on the right side of the Y-shaped tube, an electric telescopic rod is fixedly installed on the bottom of the box-shaped plate with a protruding end and the bottom of the rectangular pressure plate, and the electric telescopic rod is electrically connected to the PLC controller.

[0008] Preferably, the backflow defoaming assembly comprises a small infusion pump fixedly installed at the bottom of the left side of the supporting plate, a first hose is inserted and communicated between the liquid inlet of the small infusion pump and the branch on the right side of the Y-shaped tube, a blood filter for filtering blood bubbles is fixedly installed on the left side of the supporting plate and magnetically attached, a second hose is inserted and communicated between the liquid inlet of the blood filter and the liquid outlet of the small infusion pump, and a third hose is inserted and communicated between the liquid outlet of the blood filter and the backflow port of the blood bag.

[0009] Preferably, the right side of the supporting plate is fixedly installed with a storage battery, and the PLC controller, the electric heater, the pressure sensor, the temperature sensor, the small infusion pump and the electric telescopic rod are electrically connected with the storage battery.

[0010] Preferably, a connecting seat is fixedly connected between the extending end of the electric telescopic rod and the bottom of the rectangular pressing plate.

[0011] Preferably, the rectangular pressing plate is in sliding contact with the inner wall of the rectangular through hole on the right side and is adapted to the rectangular through hole on the left side.

[0012] Preferably, the insertion of the first hose, the second hose and the third hose is performed by elastically sleeving the end fixed rubber sleeve.

[0013] Preferably, the connecting belt on the lower side is located at the back side of the blood filter.

[0014] Preferably, a clamping groove is formed on the left side of the supporting plate, a magnet block is bonded and fixed on the right side inner wall of the clamping groove, and an iron clamping block is fixedly connected to the right side of the blood filter and movably clamped in the clamping groove and attracted to the magnet block.

[0015] Compared with the prior art, the application has the following beneficial effects: 1. The portable blood transfusion and infusion warming instrument can automatically control the temperature of the blood bag, improve the heating accuracy, avoid overheating or overcooling, reduce the discomfort caused by relatively cool blood during transportation, and improve the comfort of blood transfusion, by cooperation of the supporting plate, the PLC controller and the wrapped pressure and temperature control heating assembly. 2. The portable blood transfusion and infusion warming instrument can monitor the pressure change in real time, automatically switch the flow direction for temporary flow blocking during infusion according to the pressure, eliminate bubbles in the blood, reduce the discomfort and influence on the patient caused by too many bubbles during blood transfusion, and improve the use effect, by cooperation of the wrapped pressure and temperature control heating assembly, the switching type pressure sealing flow passing assembly and the backflow defoaming assembly. 3. The portable blood transfusion and infusion warming instrument can separate the warming instrument main body from the disposable blood bag after use by cooperation of the public magic tape and the magic tape bonding and the clamping of the Y-shaped tube, which facilitates the recycling of the warming instrument main body and improves the practicality. 4. This portable blood transfusion and infusion warmer uses a plug-in and spring-loaded connection method, which makes it easy for subsequent personnel to replace the first, second, and third hoses separately by plugging and unplugging. In addition, the blood filter is magnetically fixed by a card slot, an iron card block, and a magnet block, which also makes it easy to disassemble and replace the blood filter separately. The present invention is provided with a series of structures, which facilitates automatic temperature control and heating of the blood bag, improves heating accuracy, reduces discomfort during transportation caused by cold blood, improves blood transfusion comfort, facilitates real-time monitoring of pressure changes and automatically switches the flow direction according to pressure to temporarily intercept the infusion, eliminates bubbles in the blood, reduces the discomfort and impact on the patient caused by a large number of bubbles during blood transfusion, improves the use effect, and facilitates the separation of the warmer body from the disposable blood bag, facilitates the recycling of the warmer body, and improves the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the portable blood transfusion and infusion warmer proposed by the present invention; Figure 2 This is a schematic cross-sectional view of the portable blood and fluid warming device proposed by the present invention; Figure 3 for Figure 2 A schematic diagram of the enlarged structure of part A; Figure 4 This is a schematic diagram of the three-dimensional structure of the switchable pressure-sealed flow-through component of the portable blood and fluid warming device proposed by the present invention; Figure 5 for Figure 4 Schematic diagram of the upward-looking structure.

[0017] In the figure: 100, blood bag; 200, Y-shaped tube; 1, support plate; 101, PLC controller; 102, hanging ring; 103, connecting belt; 2, elastic thermal insulation film; 201, heat-conducting water hose; 202, electric heater; 203, pressure sensor; 204, temperature sensor; 205, female Velcro; 206, male Velcro; 3, small infusion pump; 301, first hose; 302, third hose; 303, blood filter; 4, box-shaped plate; 401, card hole; 402, rectangular through hole; 403, rectangular pressure plate; 404, rubber pressure block; 405, rectangular sleeve; 406, electric telescopic rod. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0019] like Figures 1 to 5As shown, the portable blood transfusion and infusion warmer proposed in this embodiment includes a warmer body disposed outside a blood bag 100. A Y-shaped tube 200 is inserted into the bottom end of the blood bag 100 through a bottle stopper puncture tool. One end of the Y-shaped tube 200 is connected to an infusion tube. A reflux port is provided at the bottom right side of the blood bag 100. The warmer body includes: The support plate 1 has a hanging ring 102 fixedly connected to its top; The PLC controller 101 is fixedly connected to the top right side of the support plate 1; Two sets of connecting straps 103 are fixedly connected to the left side of the support plate 1; The wrap-around pressure-measuring, temperature-controlling and heating assembly is movably wrapped around the outside of the blood bag 100 and fixedly connected to the left end of the connecting belt 103 above it, and is electrically connected to the PLC controller 101. The wrap-around pressure-measuring, temperature-controlling and heating assembly is used to control the temperature and heat the blood bag 100 under the control of the PLC controller 101, and is used to detect pressure when the blood bubbles are generated during heating and the blood bag expands, and transmit the pressure value to the PLC controller 101. The switchable pressure-sealed flow-through assembly is sleeved outside the two branches of the Y-shaped tube 200 and fixedly connected to the left end of the connecting belt 103 below. It is also electrically connected to the PLC controller 101. The switchable pressure-sealed flow-through assembly is used to be controlled by the PLC controller 101 to seal the left branch of the Y-shaped tube 200 and unseal the right branch when the pressure value exceeds a preset value. The reflux defoaming component is installed at the bottom left side of the support plate 1 and is connected to the branch on the right side of the Y-shaped tube 200 and the reflux port of the blood bag 100; the reflux defoaming component is used to be controlled by the PLC controller 101 to extract the blood with bubbles through the unsealed branch on the right side when the pressure value exceeds the preset value, and then defoam the blood and supply it to the blood bag 100 for reuse.

[0020] Specifically, the wrapping type pressure measurement and temperature control heating component includes an elastic thermal insulation film 2, which is fixedly connected to the left end of the upper connecting belt 103, and the elastic thermal insulation film 2 is wrapped around the outside of the blood bag 100. Two male Velcros 206 are bonded and fixed to the left side of the front of the elastic thermal insulation film 2, and two female Velcros 205 are bonded and fixed to the right side of the front of the elastic thermal insulation film 2. The male Velcro 206 is adhered to the corresponding female Velcro 205; the inner side of the elastic thermal insulation film 2 is embedded with a hot water conductive tape 201, and the hot water conductive tape 20 1 is movably wrapped around the outside of the blood bag 100. An electric heater 202 is fixedly embedded on the right side of the elastic thermal insulation film 2. The heating end of the electric heater 202 extends into the heat-conducting water hose 201. A pressure sensor 203 is fixedly connected to the heat-conducting water hose 201 and is in active contact with the outside of the blood bag 100. A temperature sensor 204 is fixedly connected to the elastic thermal insulation film 2 and is in active contact with the bottom right side of the blood bag 100. The electric heater 202, pressure sensor 203, and temperature sensor 204 are all electrically connected to the PLC controller 101. The elastic heat-insulating film 2, male Velcro 206, female Velcro 205, heat-conducting water belt 201, electric heater 202, pressure sensor 203 and temperature sensor 204 are coordinated to tighten the elastic heat-insulating film 2 and wrap it around the outside of the blood bag 100, which drives the heat-conducting water belt 201 to wrap around the outside of the blood bag 100 and drives the temperature sensor 204 to come into close contact with the outside of the blood bag 100. The heat-conducting water belt 201 drives the pressure sensor 203 to come into close contact with the outside of the blood bag 100. The electric heater 202 is controlled by the pre-set control of the PLC controller 101. The temperature sensor 204 detects the temperature of the blood bag 100 and transmits the temperature value to the PLC controller 101. The PLC controller 101 controls the electric heater 202 to automatically open and close according to the preset temperature value, controls the temperature and heats the blood bag 100, and reduces the discomfort caused by the cold blood during transportation. The heating of the blood bag 100 will cause its interior to expand and cause bubbles in the blood. The expanded blood bag 100 increases the squeezing force on the pressure sensor 203. The pressure sensor 203 detects the squeezing force and transmits the pressure value to the PLC controller 101.

[0021] Furthermore, the switchable pressure-sealed flow assembly includes a box-shaped plate 4 with an opening at the bottom, the box-shaped plate 4 is fixedly connected to the left end of the connecting belt 103 below, the top of the box-shaped plate 4 is provided with two card-releasing holes 401 with openings on the front sides, the two branches of the Y-shaped tube 200 are pressed and clamped in the corresponding card-releasing holes 401, and rectangular through holes 402 are provided on the inner walls on both sides of the box-shaped plate 4, the rectangular through holes 402 are connected to the corresponding card-releasing holes 401, a rectangular clamping sleeve 405 is fixedly connected to the inner wall of the top of the box-shaped plate 4, a rectangular pressing plate 403 is provided in the sliding sleeve 405, and the rectangular pressing plate 403 is provided in the sliding sleeve 405. 03 are both sides of which are bonded and fixed with rubber pressing blocks 404. The rubber pressing block 404 on the right side is movable through the rectangular through hole 402 on the right side and is pressed against the branch on the right side of the Y-shaped tube 200. The rectangular pressing plate 403 is in sliding contact with the inner wall of the rectangular through hole 402 on the right side and is adapted to the rectangular through hole 402 on the left side. An electric telescopic rod 406 is fixedly installed on the bottom of the box-shaped plate 4 with an extended end and the bottom of the rectangular pressing plate 403. A connecting seat is fixedly connected between the extended end of the electric telescopic rod 406 and the bottom of the rectangular pressing plate 403. The electric telescopic rod 406 is electrically connected to the PLC controller 101. The box-shaped plate 4, the card hole 401, the rectangular through hole 402, the rectangular card sleeve 405, the rectangular pressure plate 403, the rubber pressure block 404 and the electric telescopic rod 406 are matched. The PLC controller 101 is pre-set in advance to control the electric telescopic rod 406 to start in the reverse direction when the pressure value increases, and to set the pressure value for controlling the electric telescopic rod 406 to start in the forward direction. When the pressure value suddenly increases during the heating process, it means that the blood bag 100 expands and bubbles are generated in the blood inside. At this time, the PLC controller 101 controls the electric telescopic rod 406 to start in the reverse direction, so that it drives the rectangular pressure plate 403 to move in the reverse direction. When moving to the left, the rectangular pressure plate 403 drives the rubber pressure block 404 on the right to release the pressure seal on the right branch of the Y-shaped tube 200 to the left, and then drives the rubber pressure block 404 on the left to seal the left branch of the Y-shaped tube 200, so that the blood flow direction is changed to the right branch of the Y-shaped tube 200. When the pressure value received subsequently drops to the preset value, the PLC controller 101 controls the electric telescopic rod 406 to start in the forward direction, and drives the rectangular pressure plate 403 to move back to the right and reset, and again seals the right branch and releases the left branch, thereby achieving the effect of automatically switching the flow direction according to the pressure.

[0022] Furthermore, the reflux defoaming assembly includes a small infusion pump 3 fixedly mounted on the left bottom of the support plate 1. A first hose 301 is inserted and connected between the liquid inlet of the small infusion pump 3 and the branch on the right side of the Y-shaped tube 200. A blood filter 303 for filtering blood bubbles is magnetically mounted on the left side of the support plate 1. A second hose is inserted and connected between the liquid inlet of the blood filter 303 and the liquid outlet of the small infusion pump 3. A third hose 302 is inserted and connected between the liquid outlet of the blood filter 303 and the reflux port of the blood bag 100. The lower connecting belt 103 is located on the rear side of the blood filter 303. The small infusion pump 3, the first hose 301, the blood filter 303, the second hose and the third hose 302 are coordinated. The PLC controller 101 is pre-set to control the small infusion pump 3 to turn on when the pressure value increases, and to set the pressure value for controlling the small infusion pump 3 to turn off. When the pressure value suddenly increases during heating and use, it means that the blood bag 100 expands and bubbles are generated in the blood inside. At this time, the PLC controller 101 controls the small infusion pump 3 to turn on. At this time, the small infusion pump 3 draws blood flowing into the right branch of the Y-shaped tube 200 through the first hose 301, and supplies it to the blood filter 303 through the second hose for filtering and eliminating bubbles, and then returns it to the blood bag 100 through the third hose 302. The pressure is reduced by eliminating bubbles. When the pressure value received subsequently drops to the preset value, the PLC controller 101 controls the small infusion pump 3 to turn off, thereby achieving the effect of automatically eliminating bubbles in the blood.

[0023] Furthermore, a battery is fixedly installed on the right side of the support plate 1, and the PLC controller 101, the electric heater 202, the pressure sensor 203, the temperature sensor 204, the small infusion pump 3 and the electric telescopic rod 406 are all electrically connected to the battery.

[0024] Furthermore, the first hose 301, the second hose and the third hose 302 are all inserted by fixing elastic rubber sleeves at the ends for elastic connection. The use of the insertion and elastic connection method makes it convenient for subsequent personnel to replace the first hose 301, the second hose and the third hose 302 separately by plugging and unplugging.

[0025] Furthermore, a card slot is provided on the left side of the support plate 1, and a magnet block is bonded and fixed on the right inner wall of the card slot. An iron card block is fixedly connected to the right side of the blood filter 303. The iron card block is movably mounted in the card slot and adsorbed by the magnet block. The provided card slot, iron card block and magnet block cooperate to achieve the effect of convenient magnetic card fixing of the blood filter 303. The use of magnetic card fixing facilitates the subsequent disassembly, assembly and replacement of the blood filter 303.

[0026] The method of using this embodiment is as follows: first, the elastic thermal insulation film 2 is tightly wrapped around the outside of the blood bag 100. The elastic thermal insulation film 2 drives the heat conductive tape 201 to wrap tightly around the outside of the blood bag 100 and drives the temperature sensor 204 to be in close contact with the outside of the blood bag 100. The heat conductive tape 201 drives the pressure sensor 203 to be in close contact with the outside of the blood bag 100. The PLC controller 101 is used to preset the temperature value for controlling the on and off of the electric heater 202. The PLC controller 101 is also used to preset the reverse start of the electric telescopic rod 406 and the start of the small infusion pump 3 when the pressure value increases. The pressure value for controlling the forward start of the electric telescopic rod 406 and the shutdown of the small infusion pump 3 is also preset. The temperature sensor 204 detects the temperature of the blood bag 100 and transmits the temperature value to the PLC controller 101. The PLC controller 101 controls the electric heater 202 to automatically start and stop according to the preset temperature value, thereby controlling the temperature and heating the blood bag 100. This achieves the effect of automatically controlling the temperature and heating of the blood bag 100, improves the heating accuracy, avoids overheating or overcooling, reduces the discomfort caused by cold blood during transportation, and improves the comfort of blood transfusion. The heating of the blood bag 100 will cause its interior to expand and cause bubbles in the blood. The expanded blood bag 100 increases the squeezing force on the pressure sensor 203. The pressure sensor 203 detects the squeezing force and transmits the pressure value to the PLC controller 101. When the pressure value suddenly increases during the heating process, it means that the blood bag 100 has expanded and bubbles have been generated in the blood inside. At this time, the PLC controller 101 controls the electric telescopic rod 406 to start in reverse and the small infusion pump 3 to start, so that it drives the rectangular pressure plate 403 to move to the left. The rectangular pressure plate 403 drives the rubber pressure block 404 on the right to release the pressure seal on the right branch of the Y-shaped tube 200 to the left, and then drives the rubber pressure block 404 on the left to press the left branch of the Y-shaped tube 200, so that the blood flow direction is changed to the right branch of the Y-shaped tube 200. At this time, the small The infusion pump 3 draws blood into the right branch of the Y-shaped tube 200 through the first hose 301, and supplies it to the blood filter 303 through the second hose for filtration to eliminate bubbles, and then supplies it back to the blood bag 100 through the third hose 302. The pressure is reduced by eliminating bubbles. When the pressure value received subsequently drops to a preset value, the PLC controller 101 controls the small infusion pump 3 to shut down and controls the electric telescopic rod 406 to start forward. The electric telescopic rod 406 drives the rectangular pressure plate 403 to move back to the right and reset, and seals the right branch again and unseals the left branch, so as to realize real-time monitoring of pressure changes and automatically switch the flow direction according to the pressure to temporarily intercept the infusion, and eliminate bubbles in the blood, thereby reducing the discomfort and impact on the patient caused by a large number of bubbles during blood transfusion, and improving the use effect; After the first and second branches of the Y-shaped tube 200 are pulled out of the two card holes 401 on the box-shaped plate 4, the first hose 301 is pulled out of the right branch of the Y-shaped tube 200 by force, and the male Velcro 206 is peeled off to separate it from the corresponding female Velcro 205. The warmer body and the disposable blood bag 100 can be separated, which is convenient for recycling the warmer body and improving its practicality. In addition, the plug-in spring-loaded sleeve connection method is used to facilitate subsequent personnel to replace the first hose 301, the second hose and the third hose 302 separately by plugging and unplugging. In addition, the magnetic card fixing method of the blood filter 303 by the card slot, the iron card block and the magnet block also facilitates the subsequent disassembly and replacement of the blood filter 303.

[0027] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A portable blood transfusion and infusion warmer, comprising a warmer body disposed outside a blood bag (100), wherein a Y-shaped tube (200) is inserted into the bottom end of the blood bag (100) via a bottle stopper puncture device, and one end of the Y-shaped tube (200) is connected to an infusion tube, characterized in that: A reflux port is provided at the right bottom of the blood bag (100), and the warming device body comprises: A support plate (1) having a hanging ring (102) fixedly connected to the top thereof; A PLC controller (101) is fixedly connected to the top right side of the support plate (1); Two sets of connecting belts (103) are fixedly connected to the left side of the support plate (1); A wrapping type pressure measurement temperature control heating component, which is movably wrapped around the outside of the blood bag (100) and fixedly connected to the left end of the upper connecting belt (103), and is electrically connected to the PLC controller (101); The switchable pressure-sealed flow-through assembly is sleeved on the outside of the two branches of the Y-shaped tube (200), fixedly connected to the left end of the lower connecting belt (103), and electrically connected to the PLC controller (101); The reflux defoaming assembly is installed at the bottom of the left side of the support plate (1) and is connected to the branch on the right side of the Y-shaped tube (200) and the reflux port of the blood bag (100).

2. The portable blood transfusion and infusion warmer according to claim 1, characterized in that: The wrapping type pressure measurement and temperature control heating component includes an elastic heat-insulating film (2), the elastic heat-insulating film (2) is fixedly connected to the left end of the upper connecting belt (103), the elastic heat-insulating film (2) is wrapped around the outside of the blood bag (100), two male Velcros (206) are bonded and fixed to the left side of the front side of the elastic heat-insulating film (2), and two female Velcros (205) are bonded and fixed to the right side of the front side of the elastic heat-insulating film (2), and the male Velcros (206) are bonded to the corresponding female Velcros (205); A heat-conducting tape (201) is embedded and fixed on the inner side of the elastic heat-insulating film (2), and the heat-conducting tape (201) is movably wrapped around the outer side of the blood bag (100). An electric heater (202) is embedded and fixed on the right side of the elastic heat-insulating film (2), and the heating end of the electric heater (202) extends into the heat-conducting tape (201). A pressure sensor (203) that is in movably contact with the outer side of the blood bag (100) is fixedly connected to the heat-conducting tape (201). A temperature sensor (204) that is in movably contact with the bottom of the right side of the blood bag (100) is fixedly connected to the elastic heat-insulating film (2). The electric heater (202), the pressure sensor (203) and the temperature sensor (204) are all electrically connected to the PLC controller (101).

3. The portable blood transfusion and infusion warmer according to claim 1, characterized in that: The switchable pressure-sealed flow assembly comprises a box-shaped plate (4) with an opening at the bottom, the box-shaped plate (4) being fixedly connected to the left end of the connecting belt (103) below, the top of the box-shaped plate (4) being provided with two clamping holes (401) with both front sides being open, the two branches of the Y-shaped tube (200) being pressed and clamped in the corresponding clamping holes (401), the inner walls on both sides of the box-shaped plate (4) being provided with rectangular through holes (402), the rectangular through holes (402) being connected to the corresponding clamping holes (401), and the top inner wall of the box-shaped plate (4) being fixed A rectangular clamping sleeve (405) is connected, and a rectangular pressing plate (403) is provided in the sliding sleeve inside the rectangular clamping sleeve (405). Rubber pressing blocks (404) are bonded and fixed on both sides of the rectangular pressing plate (403). The rubber pressing block (404) on the right side movably passes through the rectangular through hole (402) on the right side and is pressed tightly against the branch on the right side of the Y-shaped tube (200). The bottom of the box-shaped plate (4) is fixedly installed with an extended end and an electric telescopic rod (406) is fixedly installed with the bottom of the rectangular pressing plate (403). The electric telescopic rod (406) is electrically connected to the PLC controller (101).

4. The portable blood transfusion and infusion warmer according to claim 1, characterized in that: The reflux defoaming assembly comprises a small infusion pump (3) fixedly mounted on the bottom left side of the support plate (1); a first hose (301) is inserted and connected between the liquid inlet of the small infusion pump (3) and the branch on the right side of the Y-shaped tube (200); a blood filter (303) for filtering blood bubbles is magnetically mounted on the left side of the support plate (1); a second hose is inserted and connected between the liquid inlet of the blood filter (303) and the liquid outlet of the small infusion pump (3); and a third hose (302) is inserted and connected between the liquid outlet of the blood filter (303) and the reflux port of the blood bag (100).

5. The portable blood transfusion and infusion warmer according to claim 4, characterized in that: A battery is fixedly mounted on the right side of the support plate (1), and the PLC controller (101), the electric heater (202), the pressure sensor (203), the temperature sensor (204), the small infusion pump (3) and the electric telescopic rod (406) are all electrically connected to the battery.

6. The portable blood transfusion and infusion warmer according to claim 3, characterized in that: A connecting seat is fixedly connected between the extended end of the electric telescopic rod (406) and the bottom of the rectangular pressing plate (403).

7. The portable blood transfusion and infusion warmer according to claim 3, characterized in that: The rectangular pressing plate (403) is in sliding contact with the inner wall of the rectangular through hole (402) on the right side and is adapted to the rectangular through hole (402) on the left side.

8. The portable blood transfusion and infusion warmer according to claim 4, characterized in that: The first hose (301), the second hose and the third hose (302) are all inserted by elastically sleeved connection with elastic rubber sleeves fixed at the ends.

9. The portable blood transfusion and infusion warmer according to claim 4, characterized in that: The lower connecting belt (103) is located on the rear side of the blood filter (303).

10. The portable blood transfusion and infusion warmer according to claim 4, characterized in that: A slot is provided on the left side of the support plate (1), a magnet block is bonded and fixed to the right inner wall of the slot, and an iron block is fixedly connected to the right side of the blood filter (303), the iron block being movably mounted in the slot and adsorbed by the magnet block.

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