Is the ultrasonic plastic welding machine harmful

来源: http://www.dgyihuicsb.com/news/92.html

2017-11-28

With the rapid development of China's industry, the use of ultrasonic plastic welding machines is more and more extensive, and it is involved in many industries, but many people think that ultrasonic plastic welding machines will hurt the human body. So, is there really? Come and see with Wing Hui.
Sonar imaging remains the primary tool used in the fields of echocardiography, obstetrics and gynecology. It is commonly used by doctors to evaluate neonatal and elderly patients, showing peripheral vascular disease through the screen, looking for abnormalities in the gallbladder, bladder, kidneys, aorta, and bile ducts. In anesthesiology, this technique can help doctors insert fine needles near the fragile nervous system.
Although ultrasound diagnosis is an older technique than techniques such as computed tomography (CT), magnetic resonance imaging (MRI), and positron emission tomography (PET) scanning, it has never been obsolete. The initial experiment began in the late 1940s, drawing on the sonar technology used in the Second World War.
It was not until the early 1970s that ultrasound technology became a widely accepted diagnostic tool. Ultrasound is now the second most used medical imaging tool. With the continuous introduction of advanced technologies such as 3D/4D ultrasound and the positive impact of intracavity ultrasound equipment, ultrasonic technology will remain a market leader for some time.
The medical profession has been concerned about the safety of ultrasound on the human body being examined, especially when used in antenatal care. Ultrasound is an energy (thermal energy) wave that can cause some damage to human tissues and organs, especially when the amount of heat used is high or for a long period of time.
The tissue absorbs heat and raises the local temperature. Air pockets or bubbles formed when dissolved gases are generated in body fluids due to local ultrasonic heat are another concern of the medical community. A bigger concern is that when using CW-type ultrasound for a longer period of time, the ultrasonic energy at this time is much higher than the pulsed ultrasonic energy.
Heat is just one way in which ultrasound can have a potentially negative impact on human tissue. Ultrasound itself does not produce audible noise, but the secondary vibration produces audible noise of up to 100 dB, which can cause fetal shifts. There are other puzzling effects, including shear forces in tissues, inductive flow in body fluids, and the production of small amounts of toxic chemicals.
But there is a trend that is obvious. Since the 1990s, with the popularity of ultrasound in the medical field, the energy dose of ultrasound has been increasing (although still within safety regulations). Medical experts believe that the benefits of ultrasound technology far outweigh any perceived or potential risks.
However, there have been no records of human or animal diseases related to ultrasound. It has been confirmed that some medical device providers believe that pregnant women may have their fetuses exposed to excessive ultrasound. However, the US Food and Drug Administration (FDA) has published a safety rating for ultrasound imaging power and frequency for prenatal care.
I am sure that you have some understanding of whether the ultrasonic plastic welding machine is harmful to the human body. So today, Yihui does not talk to everyone here. If you still have questions, please contact us directly. Consult us, we will contact you in the first time. Ok, the above is the content of all the articles of Yihui today, I hope to help everyone.

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