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About the solution
Maya Varma, at the time a high school student, came up with the idea of inventing a medical device after witnessing a close friend having a severe asthma attack, while at summer camp. Her friend was taken to the hospital and recovered, and after that, Maya started asking questions about asthma and discovered that a device called a spirometer was used to treat people with the same disease as her friend.
A spirometer is an apparatus for measuring the volume of air inspired and expired by the lungs. Maya didn't know this but, after inquiring more, she learned that this medical device typically costs hundreds of dollars and, as a result, it can be pretty rare in developing countries. And so, she decided to design her own model, one that was as effective in analyzing lung conditions, but considerably cheaper.
Throughout her research on spirometers, Varma learned that their high cost is a big barrier to the treatment of chronic obstructive pulmonary disease (COPD), the fourth leading cause of death around the world and a condition for which early detection is critical. This is where Maya's spirometer is different as it is able to diagnose five different respiratory illnesses- COPD, asthma, emphysema, chronic bronchitis, and restrictive lung disease for a fraction of the price.
Her medical device has three main components: the shell, the sensor, and the app. The first one, made on a 3D printer is for, when a person breaths into the shell, the rate of the airflow is measured by a pressure sensor as his/her breath passes through a fine, stainless steel mesh. The second one converts the pressure change to digital data, which is monitored by a microcontroller and transmitted through Bluetooth to a mobile app that Maya created. Finally, the app computes lung performance and illustrates it on the person's smartphone, taking into account his/her age, gender, weight, and other factors. It also has a disease management tool that allows patients to record their symptoms, and test results and track the severity of their illness.
The result? A device that cost her only 35$ to build and can diagnose five different lung diseases is already paying dividends. In 2016, for this invention, Maya Varma won 150,000$ as one of the first-place winners in the prestigious Intel Science Talent Search competition.
This device is currently being developed, as it only has, at this time, a prototype.
This story was adapted from https://www.washingtonpost.com/news/education/wp/2016/03/16/meet-the-tee...
这些解决方案不应包括使用药物,化学品或生物制品(包括食品);创伤性设备;冒犯性的,商业或内在危险的内容。该解决方案未经医学验证。请谨慎进行!如果您有任何疑问,请咨询健康专家。
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