Electric air bag type positive pressure infusion auxiliary device
The electric airbag-type positive pressure infusion auxiliary device uses airbag components and a control system to achieve precise control of the infusion pressure, which solves the instability problem of traditional gravity infusion in complex environments, improves the stability and safety of infusion, and expands the application scenarios.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINESE PEOPLES LIBERATION ARMY UNIT 66029
- Filing Date
- 2024-12-30
- Publication Date
- 2026-06-02
AI Technical Summary
Traditional gravity infusion methods have unstable infusion rates in complex environments, making it difficult to meet the needs for rapid and stable infusion in emergencies. Furthermore, the control of infusion temperature and rate is difficult to be precise, which may lead to adverse reactions and complications.
The device employs an electric airbag-type positive pressure infusion aid. Through the airbag assembly, pressure sensor, and control system, it precisely controls the inflation and deflation of the airbag to achieve stable infusion pressure and temperature regulation, ensuring the accuracy of infusion rate and temperature.
It has improved the stability and safety of intravenous infusion, reduced adverse reactions, expanded its application in medical rescue scenarios, and enhanced the quality of intravenous infusion and the efficiency of medical resource utilization.
Smart Images
Figure CN224307631U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical device technology, and in particular to an electric airbag-type positive pressure infusion auxiliary device. Background Technology
[0002] From its early development to the present, gravity-dependent infusion is one of the most widely used methods in medical intravenous infusion. It relies on suspending the infusion bag or bottle at a height above the patient's target vein, using the pressure difference created by gravity to force the fluid into the vein for treatment. The rate of gravity-dependent infusion depends on the pressure created by the height difference between the infusion container and the patient's vein. Even slight changes in the patient's position, such as from lying down to sitting, alter this height difference and cause fluctuations in the infusion rate. In emergencies such as cardiac arrest, severe trauma, and poisoning, rapid and stable infusion is crucial for successful resuscitation, a need that traditional gravity-dependent infusion methods can no longer meet.
[0003] Currently, in military medical, wilderness rescue, and disaster medicine scenarios, local infrastructure is often destroyed, medical conditions are limited, patients' injuries are severe and complex, and the wilderness environment is complex and unpredictable. To avoid backflow of blood and air during intravenous infusions, the standard practice is to temporarily suspend the infusion during the transfer and transport of the wounded. However, prolonged suspension of infusions can negatively impact the treatment of the wounded. During gravity-assisted infusion, the infusion container is easily affected by external factors, leading to changes in the infusion rate, and in severe cases, even interruption of the infusion, significantly affecting the treatment outcome.
[0004] In severe cases of heatstroke, such as heat exhaustion, intravenous infusion of cooler fluids, such as saline solution or other suitable electrolyte solutions at approximately 0-4°C, may be necessary. These cold fluids, once in the bloodstream, absorb heat from the body, thus lowering core body temperature. However, the fluid temperature must not be too low, otherwise it may cause complications such as vasospasm and frostbite. Furthermore, for elderly patients or those with a history of heart disease, the infusion rate must be carefully adjusted; rapidly administering large amounts of cold fluid may lead to cardiovascular problems such as arrhythmia. Utility Model Content
[0005] The purpose of this invention is to provide an electric airbag-type positive pressure infusion auxiliary device to solve the problems existing in the prior art, reduce the constraint of gravity on infusion work, ensure stable infusion rate, improve treatment safety and effectiveness, reduce adverse reactions, and improve infusion quality.
[0006] To achieve the above objectives, this utility model provides the following solution:
[0007] This utility model provides an electric airbag-type positive pressure infusion auxiliary device, comprising: a container and an airbag assembly, an inflation device, and a control system placed within the container. The airbag assembly includes an airbag body, a pressure sensor, and a pressure relief device. The pressure sensor is connected to the airbag body and is used to monitor the internal air pressure of the airbag body. The pressure relief device is provided on the airbag body. The airbag body can be detachably wrapped around an infusion bag. The inflation device is connected to the airbag body and is used to inflate the airbag body. The pressure sensor, the pressure relief device, and the inflation device are all signal-connected to the control system. The control system can control the inflation device to inflate the airbag body and control the pressure relief device to deflate the airbag body.
[0008] Preferably, the container includes a lid and a body, the body of which has an inlet for the airbag body and the infusion bag to enter and exit the body, and the lid is used to open and close the inlet.
[0009] Preferably, a through hole is provided on the contact surface between the box cover and the box body to allow the outlet of the infusion bag to extend out, with half of the through hole on the box cover and the other half on the box body.
[0010] Preferably, the airbag body is a pocket-type double-layered inflatable bag. The top of the pocket-type double-layered inflatable bag has an opening, and the bottom has a closed structure. The infusion bag can be inserted into the pocket-type double-layered inflatable bag through the opening. The inner sidewall and the outer sidewall of the pocket-type double-layered inflatable bag form a sealed inflation cavity. After the inflation device inflates the sealed inflation cavity, the inner sidewall of the pocket-type double-layered inflatable bag can fit against the infusion bag and squeeze the infusion bag, causing the liquid inside the infusion bag to flow out.
[0011] Preferably, the inner wall of the pocket-type double-layer inflatable bag is made of a stretchable flexible film, and the outer wall of the pocket-type double-layer inflatable bag is made of a non-stretchable flexible film.
[0012] Preferably, it also includes a non-contact flow rate detector, which is used to detect the liquid flow rate in the infusion tube of the infusion bag, and the non-contact flow rate detector is connected to the control system.
[0013] Preferably, the system further includes a temperature sensor and a heating element. The temperature sensor is detachably mounted on the infusion tubing of the infusion bag to monitor the temperature of the liquid flowing out of the infusion bag. The heating element is detachably sleeved on the outside of the infusion tubing of the infusion bag to heat the liquid flowing out of the infusion bag. Both the temperature sensor and the heating element are signal-connected to the control system.
[0014] Preferably, it also includes a fixing strap, which is fixedly connected to the housing box.
[0015] Preferably, the control system includes a central processing unit and a display screen electrically connected to the central processing unit, the display screen being mounted on the housing and capable of displaying pressure and temperature information.
[0016] Preferably, the inflation device is an electric air pump.
[0017] The present invention achieves the following technical advantages over the prior art:
[0018] This invention provides an electric pneumatic positive pressure infusion aid device. The control system inflates the pneumatic bag via a drive mechanism, precisely controlling the compression frequency and inflation degree of the pneumatic bag to stably output pressure to the infusion bag. This active control method overcomes the uncontrollable factors of traditional gravity infusion bags, ensuring the infusion rate is unaffected by external factors, guaranteeing a stable and accurate infusion flow rate, improving treatment safety and effectiveness, and reducing adverse reactions. A pressure sensor can detect the pneumatic bag pressure in real time, thereby sensing the infusion status. Furthermore, the pressure can be adjusted in real time based on various changes during the infusion process (such as slight external interference or fluctuations in the patient's venous pressure), thus controlling the infusion volume and ensuring normal infusion. Attached Figure Description
[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1 A schematic diagram showing the closing of the lid of an electric pneumatic positive pressure infusion auxiliary device;
[0021] Figure 2 A schematic diagram showing the opening of the lid of the electric airbag-type positive pressure infusion auxiliary device;
[0022] Figure 3 A schematic diagram of the uninflated airbag and infusion bag;
[0023] Figure 4 A schematic diagram of the inflatable airbag body and the infusion bag.
[0024] In the diagram: 1-Container box; 2-Airbag body; 21-Outer side wall; 22-Inner side wall; 3-Inflation device; 4-Pressure sensor; 5-Box cover; 6-Box body; 7-Through hole; 8-Pressure relief device; 9-Non-contact flow rate detector; 10-Infusion bag; 11-Display screen; 12-Securing strap; 13-Heating element; 14-Temperature sensor; 15-Central processing unit; 16-Groove. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0026] The purpose of this invention is to provide an electric airbag-type positive pressure infusion auxiliary device to solve the problems existing in the prior art, reduce the constraint of gravity on infusion work, ensure stable infusion flow rate, improve treatment safety and effectiveness, reduce adverse reactions, and improve infusion quality.
[0027] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0028] This utility model provides an electric pneumatic positive pressure infusion auxiliary device, such as... Figure 1-2As shown, the system includes: a container 1 and an airbag assembly, an inflation device 3, and a control system placed inside the container 1. The airbag assembly includes an airbag body 2, a pressure sensor 4, and a pressure relief device 8. The pressure sensor 4 is connected to the airbag body 2 and is used to monitor the internal air pressure of the airbag body 2. The airbag body 2 is equipped with a pressure relief device 8. The airbag body 2 can be detachably wrapped around the infusion bag 10. The inflation device 3 is connected to the airbag body 2 and is used to inflate the airbag body 2. The pressure sensor 4, the pressure relief device 8, and the inflation device 3 are all connected to the control system. The control system can control the inflation device 3 to inflate the airbag body 2 and control the pressure relief device 8 to deflate the airbag body 2. By controlling the drive device to restart the airbag body 2 through the control system, the compression frequency and inflation degree of the airbag body 2 can be precisely controlled, thereby stably outputting pressure to the infusion bag 10. This active control method overcomes the uncontrollable factors of the traditional gravity infusion bag 10, so that the infusion speed is not affected by external factors, ensuring a stable and accurate infusion process, protecting patient safety, and avoiding adverse reactions and complications caused by errors in speed and volume. This directly improves the treatment effect and patient recovery rate, ultimately enhancing the quality of medical care and enabling patients to receive safer and more effective infusion treatment. The pressure sensor 44 can sense the pressure of the airbag body 2 in real time, thereby sensing the infusion status. Based on various changes during the infusion process (such as slight external interference or fluctuations in the patient's venous pressure), the airbag body 2 can be inflated and deflated through the inflation device 3 and the depressurization device 8, which can adjust the pressure of the airbag body 2 in real time, thereby controlling the infusion volume and ensuring the normal progress of the infusion. When the fluid flow rate is high, the control system opens the pressure relief device 8, reducing the pressure inside the airbag body 2. This reduces the squeezing force on the infusion bag 10, slowing the fluid flow rate and preventing excessively fast infusion that could affect the patient's condition. When a sufficient infusion volume is reached, the pressure relief device 8 releases all the gas from the airbag body 2, relieving the squeezing force on the infusion bag 10 and stopping the fluid delivery to the body. This ensures the accuracy of the infusion volume and avoids complications caused by errors in infusion volume, such as the harm to patients with heart or kidney dysfunction from excessive infusion or the impact of insufficient infusion on treatment efficacy, thus ensuring patient safety. The inflation device 3 and pressure relief device 8 maintain stable pressure inside the airbag body 2, enabling the electric airbag-type positive pressure infusion aid to operate normally in various complex environments. This overcomes the stringent environmental requirements of traditional gravity infusion, expanding its application in medical settings. It allows for successful infusion in special environments such as field rescues and disaster sites, improving medical rescue efficiency and enabling timely patient treatment.
[0029] Simultaneously, utilizing control systems to automate and intelligentize infusion can improve the accuracy and stability of infusions, while reducing the manual adjustment of speed and volume by medical staff during the infusion process, lowering operational difficulty and workload, promoting the development of medical infusion technology towards intelligence, improving the efficiency of medical resource utilization, and providing patients with higher-quality medical services.
[0030] In a further preferred embodiment of this utility model, the container 1 includes a lid 5 and a body 6. The body 6 is provided with an inlet for the airbag body 2 and the infusion bag 10 to enter and exit the body 6. The lid 5 is used to open and close the inlet. A groove 16 is provided inside the body 6, in which the inflation device 3 can be placed. The combination of the lid 5 and the body 6 facilitates the replacement of the infusion bag 10.
[0031] In a further preferred embodiment of this utility model, a through hole 7 is provided on the contact surface between the box cover 5 and the box body 6 to allow the outlet of the infusion bag 10 to extend out. Half of the through hole 7 is on the box cover 5 and the other half is on the box body 6.
[0032] A further preferred embodiment of this utility model is, as follows: Figure 3-4 As shown, the airbag body 2 is a pocket-type double-layered inflatable bag. The top of the pocket-type double-layered inflatable bag has an opening, and the bottom is a closed structure. The infusion bag 10 can be inserted into the pocket-type double-layered inflatable bag through the opening. The inner sidewall 22 and the outer sidewall 21 of the pocket-type double-layered inflatable bag form a sealed inflation cavity. After the inflation device 3 inflates the sealed inflation cavity, the inner sidewall 22 of the pocket-type double-layered inflatable bag fits against the infusion bag 10 and squeezes the infusion bag 10, causing the liquid inside the infusion bag 10 to flow out. The pocket-type double-layered inflatable bag facilitates the insertion and removal of the infusion bag 10 and makes it easy to replace the infusion bag 10.
[0033] In a further preferred embodiment of this invention, the inner wall 22 of the pocket-type double-layer inflatable bag is made of a stretchable flexible film, while the outer wall 21 of the pocket-type double-layer inflatable bag is made of a non-stretchable flexible film. This ensures that the pocket-type double-layer inflatable bag can only compress the infusion bag 10 inwards.
[0034] In a further preferred embodiment of this invention, the electric pneumatic positive pressure infusion auxiliary device also includes a non-contact flow rate detector 9. The non-contact flow rate detector 9 is used to detect the liquid flow rate within the infusion tube of the infusion bag 10. The non-contact flow rate detector 9 is connected to the control system. The non-contact flow rate detector 9 can accurately detect the infusion flow rate and feed the data back to the control system. The control system precisely adjusts the pressure within the pneumatic bag body 2 based on the flow rate feedback information, thereby controlling the infusion rate.
[0035] In a further preferred embodiment of this invention, the electric pneumatic positive pressure infusion auxiliary device further includes a temperature sensor 14 and a heating element 13. The temperature sensor 14 is detachably mounted on the infusion tubing of the infusion bag 10 to monitor the temperature of the liquid flowing out of the infusion bag 10. The heating element 13 is detachably sleeved on the outside of the infusion tubing of the infusion bag 10 to heat the liquid flowing out of the infusion bag 10. Both the temperature sensor 14 and the heating element 13 are connected to the control system. The temperature sensor 14 can monitor the temperature of the flowing liquid in real time. When the temperature sensor 14 detects that the temperature of the liquid output from the infusion bag 10 is low, the control system can control the heating element 13 to heat the liquid flowing out of the infusion bag 10 to meet the infusion requirements and reduce the impact on the patient.
[0036] In a further preferred embodiment of this invention, the electric airbag-type positive pressure infusion auxiliary device also includes a fixing strap 12, which is fixedly connected to the housing 1. The fixing strap 12 facilitates fixing the electric airbag-type positive pressure infusion auxiliary device in a stable position. Preferably, the fixing strap 12 can be Velcro.
[0037] In a further preferred embodiment of this invention, the control system includes a central processing unit 15 and a display screen 11 electrically connected to the central processing unit 15. The display screen 11 is mounted on the container 1 and is capable of displaying pressure and temperature information. The container 1 is also provided with operation buttons for inputting commands.
[0038] In a further preferred embodiment of this utility model, the inflation device 3 is an electric air pump.
[0039] This utility model uses specific examples to illustrate its principles and implementation methods. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the idea of this utility model. In summary, the content of this specification should not be construed as a limitation of this utility model.
Claims
1. An electric pneumatic positive pressure infusion auxiliary device, characterized in that: The device includes a container and an airbag assembly, an inflation device, and a control system placed within the container. The airbag assembly includes an airbag body, a pressure sensor, and a pressure relief device. The pressure sensor is connected to the airbag body to monitor the internal air pressure of the airbag body. The pressure relief device is provided on the airbag body. The airbag body is detachably wrapped around the infusion bag. The inflation device is connected to the airbag body to inflate the airbag body. The pressure sensor, the pressure relief device, and the inflation device are all signal-connected to the control system. The control system can control the inflation device to inflate the airbag body and control the pressure relief device to deflate the airbag body. The device also includes a temperature sensor and a heating element. The temperature sensor is detachably mounted on the infusion tubing of the infusion bag to monitor the temperature of the liquid flowing out of the infusion bag. The heating element is detachably sleeved on the infusion tubing of the infusion bag to heat the liquid flowing out of the infusion bag. Both the temperature sensor and the heating element are signal-connected to the control system.
2. The electric pneumatic positive pressure infusion auxiliary device according to claim 1, characterized in that: The container includes a lid and a body. The body has an inlet for the airbag body and the infusion bag to enter and exit the body. The lid is used to open and close the inlet.
3. The electric pneumatic positive pressure infusion auxiliary device according to claim 2, characterized in that: The contact surface between the box cover and the box body is provided with a through hole for the outlet of the infusion bag to extend out. Half of the through hole is on the box cover and the other half is on the box body.
4. The electric pneumatic positive pressure infusion auxiliary device according to claim 1, characterized in that: The airbag body is a pocket-type double-layered inflatable bag. The top of the pocket-type double-layered inflatable bag has an opening, and the bottom is a closed structure. The infusion bag can be inserted into the pocket-type double-layered inflatable bag through the opening. The inner side wall and the outer side wall of the pocket-type double-layered inflatable bag form a sealed inflation cavity. After the inflation device inflates the sealed inflation cavity, the inner side wall of the pocket-type double-layered inflatable bag can fit against the infusion bag and squeeze the infusion bag, causing the liquid inside the infusion bag to flow out.
5. The electric pneumatic positive pressure infusion auxiliary device according to claim 4, characterized in that: The inner wall of the pocket-type double-layer inflatable bag is made of a stretchable flexible film, while the outer wall of the pocket-type double-layer inflatable bag is made of a non-stretchable flexible film.
6. The electric pneumatic positive pressure infusion auxiliary device according to claim 1, characterized in that: It also includes a non-contact flow rate detector, which is used to detect the flow rate of the liquid in the infusion tube of the infusion bag, and the non-contact flow rate detector is connected to the control system.
7. The electric pneumatic positive pressure infusion auxiliary device according to claim 1, characterized in that: It also includes a fixing strap, which is fixedly connected to the housing box.
8. The electric pneumatic positive pressure infusion auxiliary device according to claim 6, characterized in that: The control system includes a central processing unit and a display screen electrically connected to the central processing unit. The display screen is mounted on the container and can display flow rate, pressure, and temperature information in real time.
9. The electric pneumatic positive pressure infusion auxiliary device according to claim 1, characterized in that: The inflation device is an electric air pump.