Infusion pressurizing device

Abstract

The utility model discloses an infusion pressurization device which comprises a pressurization bag, an electric inflation pump and an inflation tube. The pressurization bag comprises a bag body, the bag body is annular and comprises a middle containing cavity, and the side wall of the bag body is of an interlayer structure and comprises a middle inflation cavity. The electric inflation pump comprises a shell, an air inlet, an air outlet, an inflation key and an inflation assembly, wherein the air inlet, the air outlet and the inflation key are formed in the surface of the shell, and the inflation assembly is arranged in the shell and comprises a motor. The two ends of the inflation pipe are communicated with the inflation cavity of the pressurization bag and an air outlet of the electric inflation pump respectively. The infusion pressurizing device further comprises a single chip microcomputer module, a pressure sensor, a setting key and a power module. The pressure sensor is arranged on the surface of the containing cavity of the bag body, and the output end of the pressure sensor is electrically connected with the input end of the single-chip microcomputer module. The electric inflator pump is combined with the infusion pressurizing bag, and the infusion pressurizing bag is inflated through the electric inflator pump, so that the workload of medical staff is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical auxiliary supplies, and particularly relates to an infusion pressurizing device. Background Art

[0002] At present, emergency blood transfusion and infusion in various clinical departments such as the emergency department and the operating room are very important for patients in urgent situations. When a patient loses too much body fluid, conditions such as hemorrhagic shock may occur. At this time, rapid blood transfusion or fluid replacement is required. To speed up the speed of blood transfusion or fluid replacement, sometimes it is necessary to manually squeeze the blood bag or fluid bag to increase the fluid flow rate by applying pressure.

[0003] In this regard, a Chinese patent document with the publication number CN215840897U discloses an infusion pressurizing device, which includes a pressurizing sleeve that is detachably sleeved on the infusion bag to be used. A pressurizing device is provided on the pressurizing sleeve. The inner layer of the pressurizing sleeve is an elastic layer. After the pressurizing device applies pressure, the inner layer of the pressurizing sleeve bulges inward. When in use, the pressurizing sleeve is used on the infusion bag to squeeze the infusion bag, so as to adapt to the situation of greater resistance during arterial infusion.

[0004] Although the above solution can provide a certain infusion pressure to the infusion bag, each pressurization requires manually pressing the spherical pressurizing device, which has a certain workload. Moreover, the volume of the infusion bag gradually decreases as the internal liquid decreases. At this time, it is necessary to manually squeeze the spherical pressurizing device again to inflate the pressurizing sleeve, so as to continue to pressurize the infusion bag, increasing the work burden of medical staff.

[0005] In the prior art, an electric air pump can replace manual inflation to reduce manpower consumption. An electric air pump, also called an air compressor, an air pump, or an inflator, works by the operation of a motor (electric machine) and is an inflation tool. The working principle of an electric air pump is as follows: after pressing the inflation button, the motor runs. When pumping air, the valve of the communicating vessel is pushed open by the air pressure of the atmosphere, and the air enters the air cylinder. When inflating a tire, the valve is closed by the air pressure in the air cylinder, and the air enters the tire.

[0006] In this regard, the utility model combines an electric air pump with the existing infusion pressurizing bag. Utility Model Content

[0007] The problem to be solved by the utility model is to provide an infusion pressurizing device that combines an electric air pump with an infusion pressurizing bag, and inflates the infusion pressurizing bag through the electric air pump to reduce the work burden of medical staff.

[0008] To solve the above technical problems, the utility model adopts the following technical solutions:

[0009] An infusion pressurizing device, comprising a pressurizing bag, an electric air pump and an air charging tube; the pressurizing bag includes a bag body, the bag body is annular and includes a receiving cavity in the middle, the side wall of the bag body is a sandwich structure and includes an air charging cavity in the middle; the electric air pump includes a housing, an air inlet, an air outlet and an air charging button arranged on the surface of the housing, and an air charging assembly arranged in the housing, the air charging assembly includes a motor; both ends of the air charging tube are respectively communicated with the air charging cavity of the pressurizing bag and the air outlet of the electric air pump; its distinguishing feature is that the infusion pressurizing device further includes a single-chip microcomputer module, a pressure sensor, a setting button and a power supply module; the pressure sensor is arranged on the surface of the receiving cavity of the bag body, and its output end is electrically connected to the input end of the single-chip microcomputer module, and is used for detecting the pressure between the surface of the receiving cavity and the infusion bag, and sending the detection signal to the single-chip microcomputer module; the setting button and the air charging button are both electrically connected to the input end of the single-chip microcomputer module, the output end of the single-chip microcomputer module is electrically connected to the motor of the electric air pump, the setting button is used for inputting a pressure threshold value, and the air charging button is used for controlling the motor to work; the power supply module is used for providing a working voltage.

[0010] Further, the single-chip microcomputer module and the power supply module are arranged in the housing of the electric air pump; the setting button is arranged on the surface of the housing; a display screen electrically connected to the output end of the single-chip microcomputer module is also arranged on the surface of the housing.

[0011] The infusion pressurizing device provided by the present utility model has the following beneficial effects:

[0012] During use, place the infusion bag in the receiving cavity of the pressurizing bag, then set the pressure threshold values generated by the surface of the receiving cavity on the infusion bag through the setting button, including the maximum value and the minimum value, and then press the air charging button, and the single-chip microcomputer module controls the motor to work, so as to inflate the air charging cavity of the bag body and make it expand, so that the surface of the receiving cavity squeezes the infusion bag. When the pressure sensor detects that the pressure generated by the receiving cavity on the infusion bag reaches the maximum pressure value, the single-chip microcomputer module controls the motor to stop working, so as to achieve the purpose of manually inflating the bag body and reducing the workload of medical staff; during the infusion process, the liquid medicine in the infusion bag gradually decreases, and the pressure generated by the surface of the receiving cavity on the infusion bag gradually decreases. When the pressure sensor detects that the pressure reaches the minimum pressure value, the single-chip microcomputer module controls the motor to continue working, and when the pressure value reaches the maximum value, controls the motor to stop working, and so on. In this way, the medical staff do not need to inflate repeatedly throughout the infusion process, further reducing the workload of the medical staff. Description of the Drawings

[0013] Figure 1 It is a schematic structural diagram of an embodiment of the present utility model.

[0014] Figure 2 It is a cross-sectional view of the pressurizing bag of an embodiment of the present utility model.

[0015] Figure 3 It is a schematic structural diagram of the fixture in the embodiment of the present utility model.

[0016] Figure 4 It is a principle block diagram of the embodiment of the present utility model.

[0017] Figure 5 It is a circuit connection diagram of the single-chip microcomputer module, setting button, inflation button, motor and display screen in the embodiment of the present utility model.

[0018] Figure 6 It is a circuit connection diagram of the pressure sensor in the embodiment of the present utility model.

[0019] The reference numerals in the figure are: 1, pressure bag; 11, bag body; 12, inflation cavity; 13, accommodation cavity; 14, hanging ring; 15, hook; 2, inflator pump; 21, housing; 22, air inlet; 23, air outlet; 24, inflation button; 25, motor; 3, inflation tube; 31, switch valve; 4, single-chip microcomputer module; 5, pressure sensor; 6, setting button; 7, power supply module; 8, display screen; 9, fixture; 91, clamping plate; 911, fixing plate; 92, bolt; 93, nut; 94, connecting rod; 10, exhaust pipe; 101, pipe cap; 20, wire. Detailed implementation manners

[0020] The present utility model will be described below with reference to the accompanying drawings. The specific implementation manners described herein are only for explaining and illustrating the present utility model, and are not used to limit the present utility model. Without departing from the design spirit of the present utility model, various deformations and improvements made by those of ordinary skill in the art to the technical solution of the present utility model shall fall within the protection scope of the present utility model.

[0021] As Figures 1 to 6 shown, the infusion pressure device in this embodiment includes a pressure bag 1, an electric inflator pump 2, an inflation tube 3, a single-chip microcomputer module 4, a pressure sensor 5, a setting button 6 and a power supply module 7.

[0022] Among them, the pressure bag 1 includes a bag body 11. The bag body 11 is annular and includes an accommodation cavity 13 in the middle. The side wall of the bag body 11 is a sandwich structure and includes an inflation cavity 12 in the middle.

[0023] The electric inflator pump 2 includes a housing 21, an air inlet 22, an air outlet 23 and an inflation button 24 arranged on the surface of the housing 21, and an inflation assembly arranged inside the housing 21. The inflation assembly includes a motor 25.

[0024] Both ends of the inflation tube 3 are respectively communicated with the inflation cavity 12 of the pressure bag 1 and the air outlet 23 of the electric inflator pump 2.

[0025] The pressure sensor 5 is disposed on the surface of the accommodating cavity 13 of the bag body 11, and its output end is electrically connected to the input end of the single-chip microcomputer module 4, and is used to detect the pressure between the surface of the accommodating cavity 13 and the infusion bag, and send the detection signal to the single-chip microcomputer module 4.

[0026] Both the setting button 6 and the inflation button 24 are electrically connected to the input end of the single-chip microcomputer module 4. The output end of the single-chip microcomputer module 4 is electrically connected to the motor 25 of the electric air pump 2. The setting button 6 is used to input the pressure threshold, and the inflation button 24 is used to control the operation of the motor 25. The power supply module 7 is used to provide the working voltage.

[0027] The single-chip microcomputer module 4 and the power supply module 7 are disposed in the housing 21 of the electric air pump 2.

[0028] The setting button 6 is disposed on the surface of the housing 21. A display screen 8 electrically connected to the output end of the single-chip microcomputer module 4 is also disposed on the surface of the housing 21.

[0029] The electric air pump 2 of this embodiment retains the original mechanical structure and components, and only improves its circuit structure, that is, the operation of its motor 25 is changed to be controlled by the single-chip microcomputer module 4. The circuit connection diagram is as shown in Figure 5 and Figure 6 shown. The single-chip microcomputer module 4 of this embodiment adopts a single-chip microcomputer module with the STM32F103C8T6 single-chip microcomputer as the core. A computer program is set in the single-chip microcomputer. In the circuit, the unused pins of the single-chip microcomputer part are omitted. A signal amplification circuit is disposed between the pressure sensor 5 and the single-chip microcomputer module 4. The signal amplification circuit is used to amplify the measurement signal of the pressure sensor 5. The output end of the signal amplification circuit is electrically connected to the PA1 pin of the single-chip microcomputer. Since the pressure sensor 5 and the single-chip microcomputer module 4 are separated, the pressure sensor 5 is connected to the housing 21 through a wire 20. The wire 20 is provided with a data line for transmitting data and a power line for supplying power to the pressure sensor 5. In the circuit, the inflation button 24 is represented by K1, and the setting button 6 is represented by K2, K3... Kn, and is used to set the pressure threshold, including the maximum value and the minimum value. In the circuit, the motor 25 is represented by M. When the PA6 pin of the single-chip microcomputer outputs a high level and the triode conducts, the motor 25 is connected to the power supply and starts to operate. When the PA6 pin of the single-chip microcomputer outputs a low level, the triode does not conduct, and the motor 25 is disconnected from the power supply and stops operating. The display screen 8 of this embodiment adopts an LCD1602 display screen.

[0030] During use, place the infusion bag in the accommodation cavity 13 of the pressurizing bag 1. Then, set the pressure thresholds, including the maximum value and the minimum value, generated by the surface of the accommodation cavity 13 on the infusion bag by setting the button 6. The set pressure thresholds can be displayed on the display screen 8. After that, press the inflation button 24, and the single-chip microcomputer module 4 controls the motor 25 to work, thereby inflating the inflation cavity 12 of the bag body 11 and making it expand, so that the surface of the accommodation cavity 13 squeezes the infusion bag. When the pressure sensor 5 detects that the pressure generated by the accommodation cavity 13 on the infusion bag reaches the maximum pressure value, the single-chip microcomputer module 4 controls the motor 25 to stop working, thus achieving the purpose of manually inflating the bag body 11 and reducing the workload of medical staff; during the infusion process, the liquid medicine in the infusion bag gradually decreases, and the pressure generated by the surface of the accommodation cavity 13 on the infusion bag gradually decreases. When the pressure sensor 5 detects that the pressure reaches the minimum pressure value, the single-chip microcomputer module 4 controls the motor 25 to continue working, and when the pressure value reaches the maximum value, controls the motor 25 to stop working. Repeating like this, the medical staff do not need to inflate repeatedly throughout the infusion process, further reducing the workload of medical staff.

[0031] In addition, a hanging ring 14 is provided at the upper end of the bag body 11 of this embodiment. The hanging ring 14 is used to hang the pressurizing bag 1. A hook 15 for hanging the infusion bag is provided below the hanging ring 14 to prevent the infusion bag from detaching from the pressurizing bag 1.

[0032] A clamp 9 for fixing it on the infusion rod is provided on the side wall of the outer shell 21 of this embodiment. The clamp 9 includes a clamping plate 91, a bolt 92, a nut 93 and a connecting rod 94. Among them, the clamping plate 91 is elastic and annular. An opening is provided on the side wall of the clamping plate 91. Fixing plates 911 extend outwardly on both sides of the opening. Through holes are provided on both fixing plates 911. The head end of the bolt 92 passes through the through holes of the two fixing plates 911 in sequence and is connected to the nut 93. The connecting rod 94 is arranged opposite to the opening of the clamping plate 91. One end of the connecting rod 94 is connected to the side wall of the clamping plate 91, and the other end is detachably connected to the side wall of the outer shell 21. The detachable connection method of this embodiment is a threaded connection. Threads are provided on the connecting rod 94, and threaded holes are provided on the side wall of the outer shell 21. The clamp 9 can be removed when not in use. During use, remove the bolt 92 and the nut 93, let the infusion rod be inserted into the opening of the clamping plate 91, and then install the bolt 92 and tighten the nut 93. Since the clamping plate 91 is elastic, the opening of the clamping plate 91 will continuously shrink, making the inner wall of the clamping plate 91 closely adhere to the surface of the infusion rod, so that the clamp 9 is fixed on the infusion rod. In this way, the electric air pump 2 does not need to be held by hand or suspended all the time during use.

[0033] Moreover, a switch valve 31 is provided on the pipeline of the charging pipe 3 to control the conduction and closing of the pipeline of the charging pipe 3. An exhaust pipe 10 is connected to the charging pipe 3, and a pipe cap 101 is provided at the end of the exhaust pipe 10. The exhaust pipe 10 and the pipe cap 101 cooperate with each other to discharge the gas in the pressure bag 1.

Claims

1. An infusion pressurizing device, comprising a pressurizing bag (1), an electric air pump (2) and an air filling tube (3); the pressurizing bag (1) comprises a bag body (11), the bag body (11) is annular and comprises a containing cavity (13) in the middle, the side wall of the bag body (11) is a sandwich structure and comprises an air filling cavity (12) in the middle; the electric air pump (2) comprises a shell (21), an air inlet (22), an air outlet (23) and an air filling button (24) arranged on the surface of the shell (21), and an air filling component arranged in the shell (21), the air filling component comprises a motor (25); the two ends of the air filling tube (3) are respectively connected to the air filling cavity (12) of the pressurizing bag (1) and the air outlet (23) of the electric air pump (2); It is characterized in that The invention also comprises a single chip computer module (4), a pressure sensor (5), a setting button (6) and a power module (7); the pressure sensor (5) is arranged on the surface of the accommodating cavity (13) of the bag body (11), and its output end is electrically connected to the input end of the single chip computer module (4), and is used to detect the pressure between the surface of the accommodating cavity (13) and the infusion bag, and send the detection signal to the single chip computer module (4); the setting button (6) and the inflation button (24) are both electrically connected to the input end of the single chip computer module (4), and the output end of the single chip computer module (4) is electrically connected to the motor (25) of the electric inflation pump (2); the setting button (6) is used to input the pressure threshold, and the inflation button (24) is used to control the operation of the motor (25); the power module (7) is used to provide the working voltage.

2. The infusion pressurizing device according to claim 1, characterized in that: The single-chip computer module (4) and the power supply module (7) are arranged in a housing (21) of the electric air pump (2); a button (6) is arranged on the surface of the housing (21); and a display screen (8) electrically connected to the output end of the single-chip computer module (4) is also arranged on the surface of the housing (21).

3. The infusion pressurizing device according to claim 1, characterized in that: A hanging ring (14) is arranged at the upper end of the bag body (11), and a hook (15) for hanging the infusion bag is arranged below the hanging ring (14).

4. The infusion pressurizing device according to claim 1, characterized in that: The side wall of the housing (21) is provided with a clamp (9) for fixing it to the infusion pole; the clamp (9) comprises a clamp (91), a bolt (92), a nut (93) and a connecting rod (94), wherein the clamp (91) is elastic and annular, the side wall of the clamp (91) is provided with an opening, and fixing plates (911) extend outward on both sides of the opening, respectively, and the two fixing plates (911) are provided with through holes, and the head ends of the bolts (92) pass through the through holes of the two fixing plates (911) in turn and are connected to the nut (93); the connecting rod (94) is arranged opposite to the opening of the clamp (91), one end of the connecting rod (94) is connected to the side wall of the clamp (91), and the other end is detachably connected to the side wall of the housing (21).

5. The infusion pressurizing device according to claim 1, characterized in that: The inflation pipe (3) is provided with an on-off valve (31); the inflation pipe (3) is connected to an exhaust pipe (10), and a pipe cap (101) is provided at the end of the exhaust pipe (10).

6. The infusion pressurizing device according to claim 1, characterized in that: The pressure sensor (5) is connected to the housing (21) via a wire (20).

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