Medical bus with positive and negative pressure adjusting function
By introducing a positive and negative pressure regulation system into medical buses and using air supply and exhaust components to regulate air pressure, the problem of germ spillage during infectious disease surgeries has been solved, creating a safe and reliable in-vehicle environment and reducing the risk of cross-infection.
Patent Information
- Application Number
- CN202422801770.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-15
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-11-15
AI Technical Summary
When performing infectious disease surgeries in existing mobile medical vehicles, the interior environment cannot be effectively isolated, posing a risk of pathogen spillover and failing to ensure the safety and sterility of the surgical environment.
The medical bus equipped with positive and negative pressure regulation functions uses an air supply component, an air exhaust component, and a pressure measuring component. By adjusting the air supply and exhaust regulating valves through a control module, a pressure difference isolation effect with unidirectional airflow is formed, which realizes flexible adjustment of the air pressure inside the vehicle and ensures the formation of a positive or negative pressure environment.
It effectively protects the safety of the vehicle interior environment, prevents the spread of germs, adapts to different rescue needs, improves the safety and isolation effect of medical work, and reduces the risk of cross-infection.
Smart Images
Figure CN223494382U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of medical vehicle technology, specifically relating to a medical bus with positive and negative pressure adjustment function. Background Technology
[0002] Mobile intensive care units (MICUs) offer advantages such as large space, comprehensive equipment, timely medical care, and convenient transport. They also allow for emergency surgery within the vehicle, facilitating emergency care and safe patient transfer. However, current technologies cannot isolate the vehicle's interior from the outside environment during surgery, failing to ensure a sterile and safe surgical environment. Furthermore, in cases involving infectious diseases or other procedures with a risk of viral contagion, existing MICUs lack an isolation mechanism, making them susceptible to pathogen leakage. Therefore, it is necessary to propose a MICU with isolation capabilities to improve the safety of in-vehicle medical care. Utility Model Content
[0003] In order to overcome the above-mentioned shortcomings of the prior art, the purpose of this utility model is to provide a medical bus with positive and negative pressure regulation function. This medical bus improves the safety of the surgical environment inside the vehicle by means of pressure difference isolation, and at the same time reduces the risk of infectious bacteria spilling out.
[0004] The technical solution adopted by this utility model to solve its technical problem is:
[0005] A medical bus with positive and negative pressure regulation functions includes a fresh air system, an air supply component, an exhaust component, and a pressure measuring component for detecting the pressure inside the bus; wherein,
[0006] The air supply assembly includes several air outlets for supplying air into the vehicle. The air outlets are connected to the air supply end of the fresh air system through pipes, and each of the air outlets is provided with an air supply regulating valve for adjusting the air volume.
[0007] The exhaust assembly includes several exhaust vents for exhausting air from inside the vehicle. Several of the exhaust vents are connected to the exhaust end of the fresh air system through pipes, and each of the several exhaust vents is provided with an exhaust regulating valve for adjusting the amount of air entering the vehicle.
[0008] It also includes a control module, which receives pressure data from the pressure measuring component and adjusts the air supply regulating valve and the air exhaust regulating valve according to the pressure data to control the amount of air supplied into the vehicle and the amount of air exhausted outside the vehicle.
[0009] In a preferred embodiment of this utility model, the medical vehicle has a first chamber, a second chamber, and a third chamber inside; the first chamber, the second chamber, and the third chamber are arranged sequentially along the vehicle body from the front to the rear; the first chamber, the second chamber, and the third chamber are each equipped with the air supply component and the air exhaust component;
[0010] The pressure measuring assembly includes multiple pressure sensors, and the pressure sensors are installed in the first chamber, the second chamber, and the third chamber.
[0011] Preferably, the second chamber is larger than both the first and second chambers; within the second chamber, multiple air supply outlets and multiple air exhaust outlets are provided.
[0012] Preferably, in the second interior, the plurality of air supply vents and the plurality of air exhaust vents are arranged along the length of the vehicle body, and the plurality of air supply vents and the plurality of air exhaust vents are staggered from each other.
[0013] In a preferred embodiment of this utility model, the fresh air system is located at the rear of the medical vehicle.
[0014] In a preferred embodiment of the present invention, the pipes connecting the plurality of air supply outlets and the plurality of air exhaust outlets to the fresh air system include a main pipe and branch pipes;
[0015] The main pipe extends along the length of the vehicle body, and there are multiple branch pipes. One end of each branch pipe is connected to the main pipe, and the other end of each branch pipe is connected to the air supply port or the air exhaust port.
[0016] Preferably, both the supply air regulating valve and the exhaust air regulating valve are installed in the branch pipe.
[0017] In a preferred embodiment of this utility model, each of the air supply outlets and each of the air exhaust outlets is provided with a filter.
[0018] In a preferred embodiment of this utility model, the pressure environment inside the medical vehicle includes a positive pressure environment and a negative pressure environment; under positive pressure, the air supply volume of the air supply component is greater than the air exhaust volume of the air exhaust component, and the pressure inside the vehicle is greater than the pressure outside the vehicle; under negative pressure, the air supply volume of the air supply component is less than the air exhaust volume of the air exhaust component, and the pressure inside the vehicle is less than the pressure outside the vehicle.
[0019] Preferably, under positive pressure conditions, the pressure in the second chamber is greater than the pressure in the third chamber, and the pressure in the third chamber is greater than the pressure in the first chamber;
[0020] Under negative pressure, the pressure in the second chamber is less than the pressure in the third chamber, and the pressure in the third chamber is less than the pressure in the first chamber.
[0021] Compared with the prior art, the beneficial effects of this utility model are:
[0022] This invention can adjust the airflow of the air supply and exhaust vents according to the actual rescue needs inside the vehicle, thereby achieving flexible adjustment of the air pressure inside the vehicle and creating a pressure differential isolation effect with unidirectional airflow, effectively protecting the safety of the vehicle's interior environment and preventing the spread of germs. Specifically, when a positive pressure environment is required inside the vehicle, a pressure sensor detects the pressure inside the vehicle and feeds the pressure data back to the control module. Based on the pressure data, the control module increases the airflow of the air supply vents and reduces the airflow of the exhaust vents, thereby gradually bringing the interior environment to the preset pressure value and maintaining balance. Under this environment, a safe and reliable environment can be created inside the vehicle, preventing outside air from entering the vehicle through structural gaps, which is beneficial for medical work with high environmental requirements, such as rescue or surgery. When a negative pressure environment is required inside the vehicle, the same principle applies: by controlling the air supply and exhaust regulating valves, the air volume at the air supply vents is reduced and the air volume at the exhaust vents is increased, so that the environment inside the vehicle gradually reaches the preset pressure value and remains balanced. Under this environment, it is beneficial to prevent the air inside the vehicle from naturally escaping outside the vehicle through structural gaps. It is especially suitable for isolation use, which can reduce the risk of germs spilling out and the impact on the surrounding environment.
[0023] In addition, a reasonable pressure gradient can be formed according to the specific conditions of the vehicle's compartments, which can effectively prevent cross-infection between different compartments. For example, a first, second, and third compartment can be set up in the vehicle, and the pressure can be adjusted to a gradient positive or negative pressure environment according to the design of each compartment. Attached Figure Description
[0024] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0025] Figure 1 This is a top view schematic diagram of a medical bus with positive and negative pressure adjustment function according to the present invention.
[0026] Figure 2 for Figure 1 A three-dimensional explosion diagram of section I.
[0027] in:
[0028] 1-First chamber, 2-Second chamber, 3-Third chamber, 4-Fresh air system, 5-Control module, 6-Pressure sensor, 7-Air supply outlet, 8-Exhaust outlet, 9-Air supply regulating valve, 10-Exhaust regulating valve, 11-Main duct, 12-Branch duct, 13-Filter. Detailed Implementation
[0029] To better understand the above-mentioned objectives, features, and advantages of this utility model, it will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. Many specific details are set forth in the following description to provide a thorough understanding of this utility model; the described embodiments are merely some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.
[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
[0031] Example 1
[0032] See Figure 1 This embodiment discloses a medical bus with positive and negative pressure regulation function, including a fresh air system 4, an air supply component, an exhaust component, a pressure measuring component for detecting the pressure inside the vehicle, and a control module 5. The fresh air system 4 in this embodiment is a device with ventilation function, such as an air conditioning unit or fresh air unit in the prior art; moreover, to improve the quality of the supplied air and ensure the exhaust air is harmless, the fresh air system 4 should include a filtration module, which should at least include functions such as pre-filtration, primary filtration, deep filtration, sterilization, dehumidification, and humidification. The control module 5 in this embodiment can be a processor, chip, or other component with data processing and control functions; see the prior art for details.
[0033] The air supply assembly includes several air outlets 7 for supplying air into the vehicle interior. These air outlets 7 are connected to the air supply end of the fresh air system 4 via ducts, and each air outlet 7 is equipped with an air supply regulating valve 9 for adjusting the airflow. The exhaust assembly includes several exhaust outlets 8 for exhausting air from the vehicle interior. These exhaust outlets 8 are connected to the exhaust end of the fresh air system 4 via ducts, and each exhaust outlet 8 is equipped with an exhaust regulating valve 10 for adjusting the amount of air entering the vehicle. The specific implementation structure of the air outlets 7 and exhaust outlets 8 in this embodiment can refer to existing technologies, such as a grid structure or a U-shaped structure.
[0034] The control module 5 receives pressure data from the pressure measuring component and adjusts the air supply regulating valve 9 and the air exhaust regulating valve 10 according to the pressure data to control the amount of air supplied into the vehicle and the amount of air exhausted outside the vehicle.
[0035] This embodiment can adjust the airflow of the air supply vent 7 and the air exhaust vent 8 according to the actual rescue needs inside the vehicle using the air supply regulating valve 9 and the air exhaust regulating valve 10, thereby achieving flexible adjustment of the air pressure inside the vehicle and forming a pressure difference isolation effect with unidirectional airflow, effectively protecting the safety of the vehicle interior environment and preventing the spread of germs. Specifically, when a positive pressure environment is required inside the vehicle, the pressure sensor 6 detects the pressure inside the vehicle and feeds the pressure data back to the control module 5. Based on the pressure data, the control module 5 increases the airflow of the air supply vent 7 and decreases the airflow of the air exhaust vent 8 by adjusting the air supply regulating valve 9 and the air exhaust regulating valve 10, so that the environment inside the vehicle gradually reaches the preset pressure value and remains balanced. Under this environment, a safe and reliable environment can be formed inside the vehicle, preventing outside air from entering the vehicle through structural gaps, which is beneficial for medical work with high environmental requirements, such as rescue or surgery. When a negative pressure environment is required inside the vehicle, the air supply regulating valve 9 and the exhaust regulating valve 10 are controlled to reduce the air volume of the air supply vent 7 and increase the air intake of the exhaust vent 8, thereby gradually bringing the interior environment to the preset pressure value and maintaining balance. Under this environment, it is beneficial to prevent the air inside the vehicle from naturally overflowing outside the vehicle through structural gaps. It is especially suitable for isolation use, which can reduce the risk of germs overflowing and the impact on the surrounding environment.
[0036] See Figure 1 Furthermore, the medical vehicle in this embodiment has a first chamber 1, a second chamber 2, and a third chamber 3 inside; the first chamber 1, the second chamber 2, and the third chamber 3 are arranged sequentially along the vehicle body from the front to the rear; each of the first chamber 1, the second chamber 2, and the third chamber 3 is equipped with an air supply assembly and an air exhaust assembly; the pressure measuring assembly includes multiple pressure sensors 6, and each of the first chamber 1, the second chamber 2, and the third chamber 3 is equipped with a pressure sensor 6. Preferably, the second chamber 2 is larger than the first chamber 1 and the second chamber 2; within the second chamber 2, multiple air supply vents 7 and air exhaust vents 8 are provided.
[0037] Furthermore, as a specific embodiment, the first room 1 can be used as a negotiation room, the second room 2 as a medical cabin, and the third room 3 as a dispensing room. Of course, the number, layout, and functions of the cabins inside the vehicle can be flexibly designed, and this utility model is not limited thereto.
[0038] In this embodiment, the second chamber 2, which serves as the medical cabin, has a relatively large space. To create a more comfortable environment, multiple air supply vents 7 and multiple air exhaust vents 8 are arranged along the length of the vehicle body, resulting in more uniform airflow. Furthermore, the multiple air supply vents 7 and multiple air exhaust vents 8 are staggered to avoid direct airflow when they are in a relative state, allowing fresh air to mix more thoroughly with the existing air after entering the second chamber 2.
[0039] To facilitate the assembly and maintenance of the fresh air system 4, this embodiment places the fresh air system 4 at the rear of the medical vehicle. Furthermore, the fresh air system 4 inevitably generates some noise and vibration during operation; therefore, placing it at the rear reduces its impact on the second chamber 2 and the first chamber 1. Replacing components, such as the filter module, is also more convenient.
[0040] The pipes connecting the multiple air supply outlets 7 and multiple air exhaust outlets 8 in the second compartment 2 to the fresh air system 4 include a main pipe 11 and branch pipes 12. The main pipe 11 extends along the length of the vehicle body, and there are multiple branch pipes 12. One end of each branch pipe 12 is connected to the main pipe 11, and the other end of each branch pipe 12 is connected to either an air supply outlet 7 or an air exhaust outlet 8. Both the air supply regulating valve 9 and the air exhaust regulating valve 10 are installed in the branch pipes 12.
[0041] See Figure 2 Furthermore, each air supply vent 7 and each air exhaust vent 8 is equipped with a filter 13. Specifically, the specific implementation of the filter 13 can refer to the prior art, or adopt the filtration structure in the prior art, so as to better match the air supply vent 7 and the air exhaust vent 8. The filter 13 can filter the air, including but not limited to airborne particles, bacteria, water vapor, etc., with the purpose of ensuring that clean and sterile fresh air enters the vehicle, ensuring a good air environment inside the vehicle, while ensuring that the air exhausted outside the vehicle is also sterile, avoiding the spread of germs.
[0042] Generally speaking, the pressure environment inside a medical vehicle includes positive pressure and negative pressure environments. Under positive pressure, the air supply volume of the air supply component is greater than the air exhaust volume of the air exhaust component, and the pressure inside the vehicle is greater than the pressure outside the vehicle; under negative pressure, the air supply volume of the air supply component is less than the air exhaust volume of the air exhaust component, and the pressure inside the vehicle is less than the pressure outside the vehicle.
[0043] Under positive pressure, the pressure in the second chamber 2 is greater than the pressure in the third chamber 3, and the pressure in the third chamber 3 is greater than the pressure in the first chamber 1. Specifically, the pressure value of the second chamber 2 under positive pressure can be adjusted to +10Pa, the pressure value of the first chamber 1 can be adjusted to +5Pa, and the pressure value of the third chamber 3 can be adjusted to +8Pa. Under these pressure values, it is ensured that the pressure of the second chamber 2, which serves as the medical cabin, is greater than that of other cabins inside the vehicle and the atmospheric pressure outside the vehicle, thus preventing unfiltered and sterilized air from entering the second chamber 2.
[0044] Under negative pressure, the pressure in chamber 2 is lower than that in chamber 3, and the pressure in chamber 3 is lower than that in chamber 1. Specifically, the pressure in chamber 2 under negative pressure can be adjusted to -15 Pa, the pressure in chamber 1 to -5 Pa, and the pressure in chamber 3 to -10 Pa. Furthermore, when a pressure gradient isolation environment needs to be created inside the vehicle, the negative pressure values between chambers 1, 2, and 3 can increase sequentially in one direction, forming an in-vehicle environment with a reasonable pressure gradient that allows for unidirectional gas flow; for example, chamber 1 could be -5 Pa, chamber 2 -10 Pa, and chamber 3 -15 Pa.
[0045] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Therefore, any modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the scope of the technical solution of the present utility model.
Claims
1. A medical bus with positive and negative pressure regulation function, characterized in that, This includes a fresh air system, air supply components, exhaust components, and pressure measuring components for detecting pressure inside the vehicle; among which, The air supply assembly includes several air outlets for supplying air into the vehicle. The air outlets are connected to the air supply end of the fresh air system through pipes, and each of the air outlets is provided with an air supply regulating valve for adjusting the air volume. The exhaust assembly includes several exhaust vents for exhausting air from inside the vehicle. Several of the exhaust vents are connected to the exhaust end of the fresh air system through pipes, and each of the several exhaust vents is provided with an exhaust regulating valve for adjusting the amount of air entering the vehicle. It also includes a control module, which receives pressure data from the pressure measuring component and adjusts the air supply regulating valve and the air exhaust regulating valve according to the pressure data to control the amount of air supplied into the vehicle and the amount of air exhausted outside the vehicle; Each of the air supply outlets and each of the air exhaust outlets is equipped with a filter.
2. The medical bus with positive and negative pressure regulation function according to claim 1, characterized in that, The medical bus has a first compartment, a second compartment, and a third compartment inside; the first compartment, the second compartment, and the third compartment are arranged sequentially along the vehicle body from front to rear; the first compartment, the second compartment, and the third compartment are all equipped with the air supply component and the air exhaust component; The pressure measuring assembly includes multiple pressure sensors, and the pressure sensors are installed in the first chamber, the second chamber, and the third chamber.
3. The medical bus with positive and negative pressure regulation function according to claim 2, characterized in that, The second chamber is larger than both the first and second chambers; within the second chamber, there are multiple air supply outlets and multiple air exhaust outlets.
4. The medical bus with positive and negative pressure regulation function according to claim 3, characterized in that, In the second interior, multiple air supply vents and multiple air exhaust vents are arranged along the length of the vehicle body, and the multiple air supply vents and multiple air exhaust vents are staggered from each other.
5. The medical bus with positive and negative pressure regulation function according to claim 1, characterized in that, The fresh air system is located at the rear of the medical bus.
6. The medical bus with positive and negative pressure regulation function according to claim 3 or 4, characterized in that, The pipes connecting the multiple air supply outlets and the multiple air exhaust outlets to the fresh air system include main pipes and branch pipes; The main pipe extends along the length of the vehicle body, and there are multiple branch pipes. One end of each branch pipe is connected to the main pipe, and the other end of each branch pipe is connected to the air supply port or the air exhaust port.
7. The medical bus with positive and negative pressure regulation function according to claim 6, characterized in that, Both the supply air regulating valve and the exhaust air regulating valve are installed in the branch pipe.
8. The medical bus with positive and negative pressure regulation function according to claim 2, characterized in that, The pressure environment inside the medical bus includes a positive pressure environment and a negative pressure environment; under positive pressure, the air supply volume of the air supply component is greater than the air exhaust volume of the air exhaust component, and the pressure inside the vehicle is greater than the pressure outside the vehicle; under negative pressure, the air supply volume of the air supply component is less than the air exhaust volume of the air exhaust component, and the pressure inside the vehicle is less than the pressure outside the vehicle.
9. The medical bus with positive and negative pressure regulation function according to claim 8, characterized in that, Under positive pressure, the pressure in the second chamber is greater than the pressure in the third chamber, and the pressure in the third chamber is greater than the pressure in the first chamber. Under negative pressure, the pressure in the second chamber is less than the pressure in the third chamber, and the pressure in the third chamber is less than the pressure in the first chamber.