Can a mobile phone become a medical device ?
It is not impossible for a mobile phone to become a medical inspection and inspection device. The actual situation is that there are a large number of mobile phone peripherals that make the mobile phone gradually become a portable inspection and inspection tool for doctors. Let us witness these devices.
1. Instant detection of AIDS
A team led by Samuel K. Sia, an associate professor in the Department of Biomedical Engineering at Columbia University, invented a low-cost mobile phone accessory that, when used in conjunction with a cell phone, can simultaneously detect three infectious diseases within 15 minutes by detecting blood samples from fingers. Markers include HIV antibodies, Treponema pallidum-specific antibodies, and Treponema pallidum non-specific antibodies. The device's detection success rate for HIV and syphilis is as high as 92% to 100%, depending on the type of disease. The manufacturing cost of the device is about $34, which is much lower than the cost of equipment for completing the ELISA test ($18,450).
This accessory is used to detect infection by a disposable plastic box filled with a test carrier. The box is filled with AIDS HIV antibodies, Treponema pallidum antibodies, and active syphilis-infected non-Helicobacter antibodies. After being connected through the headphone jack, it can be powered directly from a smartphone or iPad. The device has a button that the user will press the button to take a needle to take blood and test it. After about 15 minutes, the test results can be displayed on the screen of the smart device. By comparing the results of the standard tests, the team found that the accuracy of the detector was between 92% and 100% when identifying the target antibody, and the accuracy was determined when it was judged that the case was not infected. Between 79% and 100%. The patients who participated in the test said that they would be more willing to use this mobile phone accessory that can be carried with them than traditional laboratory tests.
Researchers say that if the device is used on a large scale, it is expected to increase the rate of early detection of sexually transmitted diseases, which may reduce the syphilis mortality rate to 10% of the current level, and help early use of antiretroviral therapy to treat AIDS and reduce AIDS. Spread the risk. The researchers also revealed that they are planning a larger clinical trial and hope that the World Health Organization will approve the mobile phone accessory for use in developing countries.
2. Instant diagnosis of thyroid function
A portable smartphone-based diagnostic technology developed by a company in Salt Lake City, Utah, USA, is expected to be able to conduct clinical diagnosis remotely and even into the home. The system consists of a smartphone app, a biosensor and a disposable kit that identifies specific compounds in blood or saliva.
The operation procedure is as follows. First, use the needle provided in the kit to obtain finger blood.
Mix it with the chemical buffer in the kit
After 15 minutes, insert the kit into the sensor connected to the phone, and then use the smartphone camera and fixed light source to help read the results that the biosensor can see.
To date, the company has been developing a test kit that can instantly diagnose thyroid function (measuring the levels of related hormones in the blood). This diagnosis is now more common in the laboratory and takes several days to get the results. In contrast, the i-calQ detection cycle takes only 20 minutes and does not require any expert or dedicated laboratory equipment to operate.
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