Pressurized interventional nursing device

Abstract

The invention relates to a medical infusion device, in particular to a pressurized interventional nursing device which comprises a supporting rod, a plurality of infusion bags, infusion tubes connected to the bottoms of the infusion bags, a fixing device and a pressurizing device, and the middle of each infusion tube is connected with a Murphy's dropper; the fixing device is detachably connected to the top of the supporting rod; the pressurizing device is arranged in the fixing device and used for pressurizing the infusion bags at the same time. The bottom of each infusion bag is provided with a deformable resistance wire used for feeding back the change of the residual liquid amount according to the gravity. According to the invention, the convenience and practicability are improved, the workload of medical staff is reduced, the working efficiency is improved, the situation that the medical staff do not perceive empty liquid and bubbles is avoided, and the safety is improved.

Description

Technical Field

[0001] The present invention relates to a medical infusion device, and in particular to a pressurized intervention nursing device. Background Art

[0002] Interventional surgery is a minimally invasive treatment method. It mainly relies on the monitoring and guidance of imaging equipment, and uses catheters, guide wires, puncture needles and other equipment to enter the human body to diagnose and treat the lesions. It has small trauma, accurate positioning, few complications and fast recovery. Compared with traditional surgical operations, interventional surgery avoids direct incision of the human body by a scalpel, reducing the patient's pain and recovery time. However, during interventional surgery, sodium chloride and other drugs need to be injected into the sheath in the human artery, and 3-4 bags of sodium chloride and other drugs need to be injected at the same time.

[0003] The patent number: CN213994455U discloses an infusion pressurized bag, including an air storage bag, a liquid storage bag fixed film, an air tube, an air valve and an inflatable ball. The air storage bag is used to store gas, the liquid storage bag fixed film is fixed to one side of the air storage bag, and a space for storing an external infusion bag is formed between the liquid storage bag fixed film and the air storage bag. One end of the air tube is connected to the air storage bag, the air valve is provided with an air inlet, an air outlet and an exhaust port, the other end of the air tube is connected to the air outlet, and the air inlet is connected to the inflatable ball. By filling the air storage bag with gas, the surface of the infusion bag in the interlayer between the air storage bag and the liquid storage bag fixed film can be uniformly squeezed, thereby adjusting the speed of infusion and reducing the labor intensity of doctors and nurses.

[0004] However, the infusion pressurized bag still has the following problems during use: 1. The infusion pressurized bag can only pressurize one bag of liquid, but during interventional surgery, 3-4 bags of sodium chloride and other drugs need to be injected into the sheath in the human body's arterial blood vessels at the same time. Therefore, if it is used in interventional surgery, it is inconvenient in terms of adjustment; 2. The infusion pressurized bag does not have a bubble warning device. Since it needs to be connected to the sheath in the artery during interventional surgery, it has poor safety; 3. The infusion pressurized bag does not have an empty liquid prompt device. Since it needs to be connected to the sheath in the artery during interventional surgery, it has low practicality and safety. Summary of the invention

[0005] In view of the above-mentioned problems, the present invention aims to provide a pressurized interventional nursing device to at least solve the problem of poor convenience and safety of the infusion pressurized bag in the prior art when used in interventional surgery.

[0006] The main idea of ​​the technical solution adopted by the present invention is:

[0007] A pressurized interventional nursing device is designed, comprising: a detachable support device is connected to a support rod, four air bags are placed inside the support device, four infusion bags are placed in the air bags respectively, the air pressure in each air bag is controlled by an air pump and a shunt control valve, so as to change the pressure in each air bag; the resistance wire is bent into a spring shape by using the variable resistor principle, and the infusion bag and the pressurized bag are supported by the elastic deformation of the spring, and as the liquid in the infusion bag decreases, the spring recovers its deformation and supports upward, and the corresponding process of connecting the circuit resistance increases, the less the current in the circuit, the less the current is fed back to the internal and external displays; above and below the Moffitt dropper of the infusion tube, respectively The monitoring device and the flow regulating device are connected. Through the two sets of infrared transmitting and receiving feedback devices in the monitoring device, when the liquid flows normally, the infrared signals received by the receiving feedback devices are the same; when encountering bubbles, the infrared receiving feedback device receives an abnormal feedback signal, and the internal buzzer gives an alarm prompt; the upper end converts the received feedback signal into an electrical signal and transmits it to the flow regulating device under the Moffitt dropper. The flow regulating device receives the electrical signal and is energized to generate magnetic force to adsorb the splint on the other side, clamping the infusion tube to limit the liquid flow rate in the infusion tube, leaving sufficient time for the nursing staff to exhaust the bubbles.

[0008] In order to achieve the above object, the technical solution adopted by the present invention to solve the technical problem is:

[0009] A pressurized interventional nursing device comprises: a support rod, a plurality of infusion bags and an infusion tube connected to the bottom of the infusion bag, a Moffitt dropper is connected in the middle of the infusion tube, and also comprises: a fixing device and a pressurizing device;

[0010] The fixing device is detachably connected to the top of the support rod;

[0011] The pressurizing device is arranged inside the fixing device, and is used to pressurize a plurality of infusion bags simultaneously;

[0012] The bottom of each infusion bag is provided with a deformable resistance wire for feeding back the change of the remaining liquid amount according to the gravity.

[0013] Furthermore, two mutually perpendicular flat plates are arranged inside the fixing device, and the two flat plates divide the inside of the fixing device into four chambers, and push-pull plates for taking and placing infusion bags are slidably connected to the four chambers;

[0014] A through hole is arranged at the vertical intersection of the two flat plates, and the inner diameter of the through hole matches the outer diameter of the support rod.

[0015] Further, the pressurizing device includes: a main air bag, four sub-air bags, a flow diversion control valve and two pipelines;

[0016] The four airbags are respectively provided with four infusion bags, and the airbags are installed on the corresponding push-pull plates;

[0017] The main airbag is connected to the four sub-airbags through two pipes;

[0018] A flow divider control valve connects two pipes.

[0019] Furthermore, a resistance wire is provided at the bottom of each airbag, and a mounting shell corresponding to the resistance wire is provided at the bottom of the fixing device. The resistance wire is located in the mounting shell and is sleeved outside the corresponding infusion tube.

[0020] Furthermore, a display screen and an indicator light are provided outside the fixing device, and the display screen and the indicator light are used to feedback the pressurization pressure and the remaining amount of liquid in the infusion bag.

[0021] Furthermore, each infusion tube is provided with a monitoring device;

[0022] The monitoring device includes: two infrared transmitting parts, two infrared feedback parts and a buzzer;

[0023] The two infrared emitting parts are located on the same vertical level and distributed on one side of the infusion tube;

[0024] The two infrared feedback parts are located on the same vertical horizontal line and are distributed on the other side of the infusion tube, wherein the infrared feedback part located at the lower side is connected to the buzzer.

[0025] Furthermore, each infusion tube is provided with a flow regulating device;

[0026] The flow regulating device comprises: a housing and a first clamping plate, a second clamping plate and a spring located in the housing;

[0027] An electromagnetic block is arranged in the first clamping plate and connected to one side of the housing, and the first clamping plate is connected to the infrared feedback part;

[0028] The second clamping plate is matched with the electromagnetic block, and the second clamping plate is connected with the other side of the shell by a spring.

[0029] The use process of the present invention is as follows: S1. Place multiple infusion bags in a fixing device, and pressurize the infusion bags through a pressurizing device; S2. Support the airbags and the infusion bags through a resistance wire, and the resistance wire is in a compressed state. As the liquid in the infusion bag decreases, the resistance wire recovers its deformation and props up. The corresponding process connects to the circuit whose resistance increases and the current in the circuit decreases. The current condition is fed back to the display screen through conversion. When the liquid in the infusion bag flows out, the resistance wire completely lifts the infusion bag. At this time, the current is the smallest and stable. The indicator light lights up to remind the nursing staff to change the liquid; S3. The monitoring device detects and feeds back the liquid condition. The flow regulating device adjusts the flow through the feedback signal of the monitoring device.

[0030] Compared with the prior art, the present invention has the following advantages:

[0031] 1. The pressurized interventional nursing device of the present invention can not only place 4 infusion bags for pressurization by providing a detachable fixing device, but also can be supported by a support frame or removed and placed separately, which greatly improves convenience and practicality, reduces the workload of medical staff, and improves work efficiency; by providing a pressurizing device, each infusion bag can be pressurized separately, and at the same time, the remaining amount of each infusion bag is monitored by a resistance wire and fed back to the display screen, and the pressurization pressure and the remaining amount of liquid in the infusion bag are displayed in real time, which is convenient for medical staff to observe the situation of the infusion bag at any time and adjust it; by providing a monitoring device and a flow regulating device connected to the detection device, the principle that when infrared rays pass through liquid and air, liquid mainly absorbs infrared rays, while bubbles mainly refract, scatter and optically attenuate infrared rays is used to achieve warnings when bubbles and empty liquid are generated, and the signal is transmitted to the flow regulating device to automatically adjust the flow.

[0032] 2. The present invention reduces the space occupied by the equipment by detachably arranging a fixing device on the top of the support frame, and four infusion bags are placed in the fixing device, which is convenient for medical staff to adjust and replace, and is more convenient and practical.

[0033] 3. The present invention provides a pressurizing device, which only requires one air pump to control the air bag. The air supply valves of the four air bags are controlled separately through the diversion control valve to adjust the pressurization regulation of the four chambers. The data of each chamber and the remaining liquid in the infusion bag can be monitored in real time through the display screen, thereby improving the work efficiency of medical staff.

[0034] 4. The present invention sets a monitoring device and utilizes the principle that when infrared rays pass through liquid and air, liquid mainly absorbs infrared rays, while air bubbles refract, scatter and optically attenuate infrared rays. This provides a warning when bubbles and empty liquid are generated, allowing medical staff to respond and adjust in time, greatly improving the safety of the operation.

[0035] 5. The present invention provides a flow regulating device connected to the monitoring device. When bubbles and empty liquid are generated, the flow regulating device automatically adjusts the liquid flow, thereby extending the response time of medical staff and avoiding safety hazards to patients caused by the medical staff's inability to take timely response actions. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 This is a schematic diagram of the structure of the pressurized interventional nursing device proposed by the present invention;

[0037] Figure 2 A schematic diagram of the structure of the fixing device proposed by the present invention;

[0038] Figure 3 This is a schematic diagram of the structure of the airbag proposed by the present invention;

[0039] Figure 4 This is a schematic diagram of the connection between the airbag and the push-pull plate proposed by the present invention;

[0040] Figure 5 This is a schematic diagram of the structure of the support frame proposed by the present invention;

[0041] Figure 6 This is a schematic diagram of the connection between the interior of the fixing device and the pressurizing device proposed by the present invention;

[0042] Figure 7 A schematic diagram of the internal structure of the installation shell proposed by the present invention;

[0043] Figure 8 A schematic diagram of the connection between the outside of the fixing device and the pressurizing device proposed by the present invention;

[0044] Fig. 9 For the present invention Figure 1 A magnified schematic diagram of part A;

[0045] Fig.10 This is a schematic diagram of the external structure of the detection device proposed by the present invention;

[0046] Fig.11 For the present invention Fig. 9 Schematic diagram of the cross section of AA;

[0047] Fig.12 This is a schematic diagram of the external structure of the flow regulating device proposed by the present invention;

[0048] Fig.13 The present invention Fig.11 Schematic diagram of the cross section of BB.

[0049] The above drawings include the following reference numerals:

[0050] 10. Support rod; 11. Universal wheel; 20. Infusion bag; 21. Infusion tube; 22. Moffitt dropper; 30. Fixing device; 31. Flat plate; 32. Through hole; 33. Push-pull plate; 331. U-shaped groove; 332. Handle; 34. Display screen; 35. Indicator light; 36. Top shell; 37. Support frame; 40. Pressurizing device; 41. Main air bag; 42. Sub-air bag; 421. Pipe hole; 422. Protruding nozzle; 43. Air pump; 44. Diverter control valve; 45. Pipe; 46. Resistance wire; 47. Mounting shell; 50. Monitoring device; 51. Infrared emitting unit; 52. Infrared feedback unit; 53. Buzzer; 60. Flow regulating device; 61. Shell; 62. First clamping plate; 63. Second clamping plate; 64. Spring. DETAILED DESCRIPTION

[0051] 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.

[0052] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0053] Example 1

[0054] like Figure 1 As shown, the present application discloses a pressurized interventional nursing device, comprising: a support rod 10 and a universal wheel 11 connected to the bottom of the support rod 10, through which the universal wheel 11 can flexibly move the support rod 10 and the device on the support rod 10, an infusion bag 20 and an infusion tube 21 connected to the bottom of the infusion bag 20, a Moffitt dropper 22 is connected in the middle of the infusion tube 21, and it is characterized in that it also includes: a fixing device 30 and a pressurizing device 40; the fixing device 30 is detachably connected to the top of the support rod 10; the pressurizing device 40 is arranged inside the fixing device 30, and the pressurizing device 40 is used to pressurize drugs such as sodium chloride in the infusion bag 20.

[0055] Furthermore, if Figure 2 As shown, two mutually perpendicular flat plates 31 are arranged inside the fixing device 30, and the two flat plates 31 divide the inside of the fixing device 30 into four chambers, and four push-pull plates 33 are slidably connected to the four chambers respectively; Figure 4As shown, the push-pull plate 33 is an L-shaped plate, and the bottom of the push-pull plate 33 is slidably connected to the bottom of the four chambers by a slide rail. The right side plate of the push-pull plate 33 is provided with a handle 332. The handle 332 is pulled to pull the push-pull plate 33 out of the chamber and replace the infusion bag 20; a through hole 32 is provided at the vertical intersection of the two flat plates 31, and the through hole 32 passes through the top and bottom of the fixing device 30. The inner diameter of the through hole 32 matches the outer diameter of the support rod 10, and a circular fixing piece supporting the fixing device 30 is provided on the support rod 10. The fixing device 30 is sleeved on the outside of the support rod 10 through the through hole 32, and the bottom of the fixing device 30 is abutted against the circular fixing piece to lock the position of the fixing device 30, and the fixing device 30 is pulled upward to above the top of the support rod 10 to remove the fixing device 30; a top shell 36 is provided on the top of the fixing device 30 to seal the fixing device 30 and the pressurizing device 40 inside it to prevent dust from entering.

[0056] Furthermore, the pressurizing device 40 includes: a main airbag 41, four sub-airbags 42, an air pump 43, a flow control valve 44 and two pipes 45; each of the sub-airbags 42 is provided with a pipe hole 421, and the two pipes 45 are connected to the main airbag 41, and are respectively connected to the four sub-airbags 42 through the pipe holes 421; a U-shaped groove 331 is provided at the bottom of the push-pull plate 33, such as Figure 3 and Figure 4 As shown, a matching protrusion 422 is provided at the bottom of the sub-airbag 42, and the sub-airbag 42 is slid into the U-shaped groove 331 and snapped through the protrusion 422; the four sub-airbags 42 respectively receive four infusion bags 20, so that the four sub-airbags 42 are placed in four chambers respectively, and the push-pull plate 33 and the corresponding sub-airbags 42 snapped therein can be pulled out of the chamber by pulling the handle 332 to replace the infusion bag 20 inside the sub-airbag 42; the shunt control valve 44 connects the two pipes 45 to realize the pressure regulation of the sub-airbags 42 in each chamber respectively; the air pump 43 is arranged on the top of the main airbag 41 and is connected to the main airbag 41; the main airbag 41 is connected as shown in FIG. Figure 5 The support frame 37 shown is supported on the top of four sub-airbags 42 , and the air pump 43 and the diversion control valve 44 are placed on the top of the main airbag 41 .

[0057] Furthermore, if Figure 6 As shown, the bottom of the four infusion bags 20 are all provided with resistance wires 46. Since the four infusion bags 20 are respectively received in the four sub-air bags 42, the resistance wires 46 are respectively provided at the bottom of the four sub-air bags 42. Figure 7As shown, a mounting shell 47 corresponding to the resistance wire 46 is provided at the bottom of the fixing device 30. The resistance wire 46 is located in the mounting shell 47 and is sleeved on the outside of the corresponding infusion tube 21. The mounting shell 47 is provided to prevent the resistance wire 46 from falling off. The resistance wire 46 is bent into a spring shape by utilizing the variable resistor principle, and the elastic deformation of the spring is utilized to prop up the infusion bag 20 and the sub-airbag 42. As the liquid in the infusion bag 20 decreases, the resistance wire 46 recovers its deformation and props up upward. The resistance of the corresponding process access circuit increases, and the current in the circuit decreases. The current condition is fed back to the display screen 34 through conversion. At the same time, the less liquid in the infusion bag 20, the less pressure the infusion bag 20 bears. The pressure is fed back to the air pump 43 for pressurization to ensure the liquid flow of the infusion. When the liquid in the infusion bag 20 is exhausted, the resistance wire 46 completely lifts up the infusion bag 20 and the sub-airbag 42. At this time, the current is minimum and stable. The indicator light 35 lights up to remind the nursing staff to change the liquid.

[0058] Furthermore, if Fig. 9 As shown, each infusion tube 21 is provided with a monitoring device 50 and a flow regulating device 60. The monitoring device 50 is connected to the infusion tube 21 above the Moffitt dropper 22, and the monitoring device 50 is used to monitor bubbles and empty liquid conditions; the flow regulating device 60 is connected to the infusion tube 21 below the Moffitt dropper 22 and is signal-connected to the monitoring device 50;

[0059] like Fig.10 and Fig.11As shown, the monitoring device 50 includes: a monitoring shell and two infrared emitting parts 51, two infrared feedback parts 52 and a buzzer 53 located in the monitoring shell; the monitoring shell is mounted on the infusion tube 21 above the Moffitt dropper 22, and the two infrared emitting parts 51 are located on the same vertical level and distributed in the monitoring shell on one side of the infusion tube 21; the two infrared feedback parts 52 are located on the same vertical level and distributed in the monitoring shell on the other side of the infusion tube 21; the buzzer 53 is arranged below the infrared feedback part 52 and connected to the infrared feedback part 52; when infrared rays pass through liquid and air, the liquid mainly absorbs the infrared rays, while the bubbles mainly refract, scatter and optically attenuate the infrared rays. In view of this different phenomenon, when the liquid flows normally, the infrared signals received by the infrared feedback part 52 are the same. When encountering bubbles, the infrared feedback unit 52 receives an abnormal feedback signal, the internal buzzer 53 gives an alarm prompt, and the upper end converts the received feedback signal into an electrical signal and transmits it to the flow regulating device 60 below the Moffitt dropper 22. The flow regulating device 60 adjusts the flow after receiving the electrical signal; after exhausting the bubbles, the button of the remote control connected to the monitoring device 50 is pressed, the line breakpoint buzzer 53 stops working, and the signal received by the lower end flow regulating device 60 stops, that is, the flow regulating device 60 stops working, and the infusion tube 21 infuses normally; when both ends of the monitoring device 50 receive abnormal feedback signals at the same time, it indicates that the liquid in the infusion bag 20 has been completely infused and needs to be replaced urgently, and the double electrical feedback is fed back to the lower flow regulating device 60. The flow regulating device 60 stops infusion after receiving the signal to prevent blood return after the liquid is infused.

[0060] Example 2

[0061] According to Embodiment 1, the flow regulating device 60 includes: a housing 61, a first clamping plate 62, a second clamping plate 63 and a spring 64; Fig.12 and Fig.13As shown, the first clamping plate 62 is connected to one side of the housing 61, and the first clamping plate 62 is connected to the infrared feedback part 52, and the first clamping plate 62 has an electromagnet built in; the second clamping plate 63 is connected to the other side of the housing 61 through a spring 64, and the second clamping plate 63 is made of iron and cooperates with the electromagnet; when an infrared feedback part 52 at the upper end receives an abnormal signal, the feedback signal is converted into an electrical signal and transmitted to the flow regulating device 60 below the Moffitt dropper 22. After the first clamping plate 62 receives the electrical signal, the electromagnet inside it is energized to generate magnetic force to attract the second The second clamping plate 63 clamps the infusion tube 21 and limits the flow rate of the liquid in the infusion tube 21, leaving sufficient time for the nursing staff to exhaust the bubbles; when the two infrared feedback parts 52 at the upper end receive abnormal feedback signals at the same time, it indicates that the liquid in the infusion bag 20 has been completely infused and needs to be replaced urgently, and the double electrical discharge feedback is sent to the flow regulating device 60 below. After the first clamping plate 62 receives the electrical signal, the electromagnet inside it is energized to generate magnetic force to attract the second clamping plate 63 and completely clamp the infusion tube 21 to stop the infusion, thereby preventing blood from returning after the liquid is infused.

[0062] The specific operation of the pressurized interventional nursing device provided in the present invention during the interventional surgery is as follows:

[0063] like Figure 8As shown, each push-pull plate 33 is pulled out in turn, and four infusion bags 20 are placed in the sub-airbags 42 in each push-pull plate 33, and then each push-pull plate 33 is pushed into each chamber in the fixing device 30; each needle at the bottom of the infusion tube 21 is connected to the sheath in the patient's arterial blood vessel, and then the air pump 43 and the shunt control valve 44 are turned on to adjust and control the pressure in each sub-airbag 42; at the same time, due to the principle of variable resistance, the elastic deformation of the spring is used to prop up the infusion bag 20 and the sub-airbag 42. As the liquid in the infusion bag 20 decreases, the resistance wire 46 recovers its deformation and props up. The corresponding process increases the resistance of the connected circuit and the current in the circuit decreases. The current situation is fed back to the display screen 34 through conversion. At the same time, the less liquid in the infusion bag 20, the less pressure the infusion bag 20 bears. The feedback is sent to the air pump 43 for pressurization to ensure the liquid flow of the infusion. When the liquid in the infusion bag 20 flows out, the resistance wire 46 completely lifts the infusion bag 20 and the airbag 42. At this time, The current is minimum and stable, the indicator light 35 lights up to remind the nursing staff to change the liquid, and the pressure and liquid residue provided are observed in real time through the display screen 34 so that the medical staff can make adjustments in time; if bubbles are generated, the infrared feedback unit 52 receives an abnormal signal, converts the received feedback signal into an electrical signal and transmits it to the flow regulating device 60 below the Moffitt dropper 22, and after the first clamping plate 62 receives the electrical signal, the electromagnet inside it is energized to generate magnetic force to attract the second clamping plate 63, clamp the infusion tube 21 and limit the liquid flow rate in the infusion tube 21, leaving enough time for the nursing staff to exhaust the bubbles; if the liquid in the infusion bag 20 has been completely infused, the two infrared feedback units 52 at the upper end simultaneously receive an abnormal feedback signal, and the double electrical discharge is fed back to the flow regulating device 60 below, and after the first clamping plate 62 receives the electrical signal, the electromagnet inside it is energized to generate magnetic force to attract the second clamping plate 63 and completely clamp the infusion tube 21 to stop the infusion, so as to prevent the phenomenon of blood return after the liquid is infused.

[0064] The above description of the embodiments is to facilitate the understanding and application of the present invention by those skilled in the art. It is obvious that those skilled in the art can easily make various modifications to the above embodiments and apply the general principles described herein to other embodiments without creative work. Therefore, the present invention is not limited to the above embodiments, and improvements and modifications made by those skilled in the art based on the disclosure of the present invention should be within the scope of protection of the present invention.

Claims

1. A pressurized interventional nursing device, comprising: A support rod (10), a plurality of infusion bags (20) and an infusion tube (21) connected to the bottom of the infusion bag (20), wherein a Maufe dropper (22) is connected in the middle of the infusion tube (21), characterized in that it also includes: a fixing device (30) and a pressurizing device (40); the fixing device (30) is detachably connected to the top of the support rod (10); The pressurizing device (40) is arranged inside the fixing device (30), and the pressurizing device (40) is used to pressurize a plurality of the infusion bags (20) at the same time; The bottom of each infusion bag (20) is provided with a deformable resistance wire (46) for feeding back changes in the amount of remaining liquid according to the magnitude of gravity.

2. A pressurized interventional nursing device according to claim 1, characterized in that: Two mutually perpendicular flat plates (31) are arranged inside the fixing device (30), and the two flat plates (31) divide the inside of the fixing device (30) into four chambers, and push-pull plates (33) for taking and placing the infusion bag (20) are slidably connected to the four chambers; A through hole (32) is provided at the vertical intersection of the two flat plates (31), and the inner diameter of the through hole (32) matches the outer diameter of the support rod (10).

3. A pressurized interventional nursing device according to claim 2, characterized in that: The pressurizing device (40) comprises: a main air bag (41), four sub-air bags (42), a flow diversion control valve (44) and two pipelines (45); The four airbags (42) respectively receive the four infusion bags (20) therein, and the airbags (42) are mounted on the corresponding push-pull plates (33); The main air bag (41) is connected to the four sub-air bags (42) via the two pipes (45); The flow splitting control valve (44) connects the two pipelines (45).

4. A pressurized interventional nursing device according to claim 3, characterized in that: The resistance wire (46) is provided at the bottom of each of the airbags (42), and a mounting shell (47) corresponding to the resistance wire (46) is provided at the bottom of the fixing device (30). The resistance wire (46) is located in the mounting shell (47) and is sleeved outside the corresponding infusion tube (21).

5. A pressurized interventional nursing device according to claim 4, characterized in that: The fixing device (30) is provided with a display screen (34) and an indicator light (35) on the outside. The display screen (34) and the indicator light (35) are used to feedback the pressurization pressure and the remaining amount of liquid in the infusion bag (20).

6. A pressurized interventional nursing device according to claim 5, characterized in that: Each of the infusion tubes (21) is provided with a monitoring device (50); The monitoring device (50) comprises: two infrared emitting parts (51), two infrared feedback parts (52) and a buzzer (53); The two infrared emitting parts (51) are located on the same vertical horizontal line and are distributed on one side of the infusion tube (21); The two infrared feedback parts (52) are located on the same vertical horizontal line and are distributed on the other side of the infusion tube (21), wherein the infrared feedback part (52) located at the bottom is connected to the buzzer (53).

7. A pressurized interventional nursing device according to claim 6, characterized in that: Each of the infusion tubes (21) is also provided with a flow regulating device (60); The flow regulating device (60) comprises: a housing (61) and a first clamping plate (62), a second clamping plate (63) and a spring (64) located inside the housing (61); An electromagnet is provided in the first clamping plate (62) and is connected to one side of the housing (61), and the first clamping plate (62) is connected to the infrared feedback part (52); The second clamping plate (63) cooperates with the electromagnet, and the second clamping plate (63) is connected to the other side of the housing (61) by the spring (64).

8. The method for using the pressurized interventional nursing device according to any one of claims 6 or 7, characterized in that: The following steps are involved: S1, placing a plurality of infusion bags (20) in a fixing device (30), and pressurizing the infusion bags (20) by a pressurizing device (40); S2, the airbag (42) and the infusion bag (20) are supported by the resistance wire (46), the resistance wire (46) is in a compressed state, and as the liquid in the infusion bag (20) decreases, the resistance wire (46) recovers its deformation and props up, and the corresponding process access circuit resistance increases and the current in the circuit decreases, and the current situation is fed back to the display screen (34) through conversion. When the liquid in the infusion bag (20) flows out, the resistance wire (46) completely lifts the infusion bag (20), and at this time the current is minimum and stable, and the indicator light (35) lights up to prompt the nursing staff to change the liquid; S3, the monitoring device (50) detects and provides feedback on the liquid condition, and the flow regulating device (60) regulates the flow rate based on the feedback signal from the monitoring device (50).

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