- Home >> Solution >> Electronics >> sports massage
Medical nebulizer solution
In the past, the application of nebulizers existed more in the medical field. With the continuous development of society, nebulizers began to be widely used in people's daily life. The atomizer is a device that ensures indoor air humidity by atomizing water, and can also generate a certain amount of negative oxygen ions. Facing the increasingly diverse needs of the public, we need to optimize and improve it.
In recent years, with the rapid development of science and technology, people have higher and higher requirements for the quality of life. Therefore, in winter, people use atomizers to adjust the indoor air humidity to deal with the problem of indoor air drying caused by heating, thereby improving the quality of life. However, turning on the nebulizer for a long time not only wastes resources and increases loss, but also continuously increases the humidity of the indoor narrow air and has adverse effects on health. Therefore, it is particularly important to optimize the intelligent performance of the nebulizer.
1. The principle of the ultrasonic nebulizer scheme
Ultrasonic nebulizer uses high-frequency vibration of electrons and high-frequency resonance of ceramic atomizer to break up the molecular structure of liquid water to produce natural and elegant water particles.
The intelligent control of the ultrasonic atomizer is to use the single-chip microcomputer as the control core, analyze and process the signal input from the outside, and convert the analysis result into a signal to control the atomizer, display unit and water level control unit. The entire system consists of modules including: atomizer, control panel, humidity sensor, water level sensor, sound and light display device and various executive devices.
The working process of the system is: after the power is turned on, the temperature sensor and humidity sensor convert the indoor temperature and humidity into signals and transmit them to the single-chip microcomputer. At the same time, the system automatically detects the temperature and humidity values set by the user. If the user does not set, The system calls the default parameters to work. When the indoor humidity and temperature values reach the user’s set value or the system’s default value, the nebulizer will automatically stop running and switch to the state of maintaining this temperature and humidity value. Afterwards, when the indoor temperature and humidity drop, the nebulizer will It works automatically to increase the temperature and humidity to the user's set value or the system default value again. The system repeats in this way to keep the indoor temperature and humidity at a constant value.
2. Hardware Design of Ultrasonic Nebulizer
The hardware of the system mainly includes: single-chip microcomputer, atomizer, control panel, temperature and humidity sensor, water level sensor, sound and light display device and various executive devices. The circuit of the atomizer is mainly composed of a mountain oscillator, a transducer and a water level control circuit. The transducer converts electrical energy into mechanical energy, and then atomizes water. In the water level control unit, the water tank is usually monitored by three levels of water level, that is, probes are set on the top of the water tank, the heater element, and the bottom of the water tank to detect the status of each part. The top probe detects when the water level is overflowing, the heater element probe detects when the water level is above the heater element, and the bottom probe detects when the tank is filled. Through three-level water level monitoring, a series of automatic controls such as water tank intake, drainage, and heating are realized.
3. Software Design of Ultrasonic Nebulizer
In this design system, a total of 5 subroutines participate in the system operation (see Figure 2 for details). Among them, the function of the digital tube display program is to digitally display the signal sent to the display in the system, so that the operating status of the atomizer can be more intuitively presented to the human eye. The keyboard scanning circuit and key processing program (that is, the input program) are tools for inputting external information into the interior, so as to achieve the atomizer debounce and control related programs (such as setting the system temperature and humidity). The temperature and humidity signal processing program is to analyze and process the perceived external temperature and humidity, and convert the processing results into signals and send them to the control center. The water level control program is to convert the water level in the water tank through probe detection into an electronic signal and send it to the control center, and then control the system's water intake, drainage, heating and other operations. The relay control program is to turn the received signal into the control relay action, and then realize the intelligent adjustment and automatic control of the atomizer.
4. Advantages of Ultrasonic Nebulizer
It has been proved by actual use that the atomizer senses the external temperature and humidity. If the temperature and humidity are lower than the set value, the atomizer will operate by itself, heat the water in the water tank, and then atomize it to change the external temperature and humidity to the system. At this time, the atomizer will stop running and switch to the current working state. When the temperature and humidity drop again, the atomizer will run again to increase the external temperature and humidity to the set value. The operation effect of this atomizer realizes that the atomizer controls the operating state by self-sensing the external temperature and humidity, keeps the external temperature and humidity at a constant value, effectively improves the indoor temperature and humidity environment, and optimizes the indoor environment. Air.
5. Scheme design of medical nebulizer
Aerosol inhalation therapy during the application of the ventilator can improve the patient's ventilation function and prevent or control respiratory tract infection. At present, the most clinically used method is to add nebulized inhalation medicine to the nebulizer, and then connect the nebulizer to the breathing circuit for nebulization treatment. Improve the mouth-containing nebulizer, add a screw switch at the atomization outlet, and add a drug injection interface on the wall of the drug storage cavity. It can be used for the atomization inhalation operation of the patient during the use of the ventilator, which can avoid repeated opening of the breathing circuit. During the use of the ventilator, the liquid medicine can also be directly added without affecting the operation of the ventilator. After the atomization inhalation is completed, no condensed water will be deposited, and it can also It will not increase the dead space of the breathing circuit, promote the standardization of nosocomial infection management, and better serve the clinic.
1. Design principle of medical nebulizer
The atomizer device is mainly composed of an atomization generating device at the bottom of the atomizer, a drug storage chamber and a three-way connecting pipe. To improve the above atomization device, a thread structure switch is added on the outer wall of the vertical end of the three-way T-shaped pipe, and two closed pieces are added correspondingly on the inner side, and the screw thread structure is rotated. When the two closed pieces are completely overlapped, the maximum diameter of the atomized spray ; When there is no overlap between the two sealing pieces, the atomization outlet will be closed. In addition, the atomization device adds a drug injection interface on the outer wall of the drug storage cavity to match the nipple of the syringe, and injects the drug into the drug storage cavity with a syringe without a needle before atomization inhalation; the interface is closed with a heparin cap, During the inhalation process, the latex plug of the heparin cap can be pierced with a needle point to add drugs to the drug storage chamber.
2. How to use the medical nebulizer
Add the medicine into the medicine storage cavity, connect the air source, put the three-way tube into the inhalation end of the ventilator circuit, press the atomization button of the ventilator to generate a spray. Open the thread structure of the atomization device to realize the atomization inhalation operation during the use of the ventilator. During the nebulization process, if it is necessary to increase the nebulized drug, use the needle point to pierce the latex plug of the heparin cap to add the drug to the drug storage chamber.
After atomization and inhalation, the screw thread structure is rotated to close the atomization outlet, blocking the passage between the medicine storage chamber and the three-way pipe, that is, blocking the medicine storage chamber and the patient's breathing circuit. Inject medicine into the medicine storage cavity again, open the atomization key of the machine, and turn the threaded structure knob to realize the atomization and inhalation operation again, without taking out the atomization device if there is no special need.
3. Advantages of the medical nebulizer solution
At present, after using the nebulizer clinically used, if the nebulizer is not taken out, the drug storage cavity will increase the dead space of the breathing circuit, and the drug storage cavity is at the low position of the breathing circuit, and it is easy to retain condensed water; Withdrawal, the breathing circuit will be disconnected again. When the nebulization inhalation treatment is performed again, or when the drug is added during the nebulization process, the closed circuit between the patient and the ventilator will inevitably be disconnected. Repeatedly opening the closed circuit between the patient and the ventilator and interrupting the normal operation of the ventilator will undoubtedly increase the chance of the patient's airway infection, and also increase the contamination of the external environment and medical staff by patient droplets or airway secretions Opportunity.
The threaded structure and injection joint added by the atomization device successfully solve the above problems. The nebulizer can avoid repeatedly opening the breathing circuit due to nebulization inhalation operation, and can also directly add medicinal liquid during the use of the ventilator without affecting the operation of the ventilator, and can protect the airtightness of the circuit between the patient and the ventilator; atomization After inhalation, there will be no accumulation of condensed water due to the drug storage cavity, and it will not increase the dead space of the breathing circuit; it can reduce the chance of the external environment and medical staff being polluted by patient droplets or airway secretions, and can also reduce The workload; it can promote the standardization of nosocomial infection management and should be able to better serve the clinic.
The above are the details of the medical nebulizer solution introduced by Shenzhen Zuchuang Microelectronics Co., Ltd. for you. If you have electronic function development needs for ultrasonic nebulizers, you can rest assured to entrust them to us. We have rich experience in customized development of electronic products, and can evaluate the development cycle and IC price as soon as possible, and can also calculate PCBA quotations. We are a number of chip agents at home and abroad, including MCU, voice IC, Bluetooth IC and modules, wifi modules. Our development capabilities cover PCB design, single-chip microcomputer development, software custom development, APP custom development, WeChat official account development and other hardware and software design. It can also undertake the research and development of smart electronic products, household appliances scheme design, beauty equipment development, Internet of Things application development, smart home scheme design, TWS scheme development, Bluetooth audio development, children's toy scheme development, and electronic education product development.
- TOP