Human body sensor: wireless transmission of health data
Release date: 2013-08-12
If you are in the process of quitting smoking or losing weight, occasionally unable to control your mouth, secretly taking a few mouthfuls or eating too much, your dentist may be able to grasp your "breaking ring" behavior in the first place. The reason is that a sensor is implanted in your teeth and every movement of the mouth will be monitored.
Yan Haohua and colleagues at the National Taiwan University in Taipei invented the sensor, which is located on a very small circuit board that can be placed on a denture or a dental column. They want the sensor to be shrunk into a cavity or crown.
The software within the sensor identifies the indication of each jaw movement pattern and then counts the time the patient chews, drinks, talks, coughs or smokes, and saves the relevant data. The dental sensor's accelerometer sends oral activity data to the smartphone so that the doctor can understand the patient's condition.
The researchers said that eight people have implanted this sensor prototype, and the system recognizes that the correct rate of mouth activity is 94%. However, at present, the sensor prototype must also be connected to the power supply through external wires. They believe that the development of micro-batteries is a top priority, and if it can miniaturize devices and wireless, it will have unlimited potential.
In fact, this is not the only invention of a dental sensor. Scientists at Princeton University have developed a "teeth tattoo" that can detect oral germs. Simply put, it can collect "bacterial information" in the mouth between the patient and the patient, and report it to the medical personnel in charge of monitoring through the built-in wireless network signal device.
This "literature" is a planar electronic chip sensor made of recently hot graphene material. Graphene is known as the world's thinnest and hardest nanomaterial, but it is very sensitive and easily adheres to other substances. Therefore, the chip sensor made of this material is not only easily embedded in the teeth, but also can easily adhere to bacterial molecules.
Researchers have already experimented with the teeth of a cow. The experimenter exhales on the “teeth tattooâ€. The monitoring computer connected to it immediately receives the information of the bacteria collected from the “tooth tattoo†from the breath. It is possible to analyze whether these bacteria are likely to be further infected or spread.
Professor Hu Dejun, a professor at the West China College of Stomatology and a director of the Department of Preventive Medicine at Sichuan University, said in an interview with the Journal of the Chinese Academy of Sciences that the dental sensor is still in the laboratory research stage and has a long distance from clinical use. . "Ensuring the safety of implants should be of the utmost concern to the average patient," Hu Dejun said. "In addition, it is still unclear how much the sensor can play in practical applications."
Nowadays, in the medical field, human implantable sensors have become one of the hot technologies for scientists to compete for research. Remote monitoring based on this technology is considered to be the development direction of future medical technology.
For example, Swiss scientists have previously developed a new type of subcutaneous blood test sensor that can monitor the effects of cholesterol, blood sugar levels, and medical treatments such as chemotherapy on the human body, and even sense subtle changes in blood flow. In order to predict the number of hours before the heart attack, the sensor can instantly transmit several health indicators to the smart device via Bluetooth.
In the past, human body monitoring relied on complex wired devices, and the birth of human implantable sensors brought about the possibility of wireless monitoring of human body monitoring. However, the battery technology of this kind of equipment has caused many people to worry.
According to Huang Liansheng, a professor of computer science at Tsinghua University, due to the realization of non-contact charging technology, it is entirely possible to solve the problem of power supply for human implantable sensors in the future. He believes that ensuring the overall safety and long-term safety of equipment from materials and use to charging is the key to studying such technologies. In addition, he mentioned that the promotion of a new technology must strictly consider the total cost of society. If the social cost is too high and cannot be universally accepted by the people, then it can only be a product that is always hiding in the laboratory.
“More importantly, this technology must have both technical and social impacts to correct.†Huang Liansheng told the Journal of the Chinese Journal of Science and Technology, “Once the technology is found to have security vulnerabilities, the technology itself needs to have room for adjustment. Science and technology must consider the social and social impacts it may have. Once a technology forms a chain of interest, if anyone can't finally withdraw from the interest group, it will become a social problem."
Source: Chinese Journal of Science
John Dory,John Dory Fish,Fresh John Dory,Frozen John Dory
ZHEJIANG RETRONX FOODSTUFF INDUSTRY CO.,LTD , https://www.retronxfoods.com