Aug 23, 2017 | By Tess
Not many teens can say they attend an Ivy League school and perhaps even fewer can claim an invention to their name. This is not the case for 17-year-old Maya Varma, an engineering student and intern at Stanford University who has developed a low-cost 3D printed device that can analyze a patient’s breath and help to diagnose pulmonary diseases.
Across the globe, hundreds of millions of people suffer from respiratory conditions such as asthma, chronic obstructive pulmonary disease (COPD), chronic bronchitis, emphysema, and restrictive lung disease. In fact, respiratory diseases and infections are the third leading cause of death, after cancer and heart disease.
Sadly, many deaths caused by respiratory disease occur because of lack of diagnosis and lack of proper treatment. Because these processes often require expensive medical equipment and devices, a disportioncate number of respiratory illness-related deaths occur in developing countries where medical resources are limited.
One of the key tools used to diagnose pulmonary disease is called a spirometer. The expensive piece of equipment is essentially a lung monitoring device which measures the amount of air a patient inspires and expires. The data captured by a spirometer enables doctors to accurately diagnose if a patient is suffering from any one of the five main respiratory conditions mentioned above.
In an effort to make the crucial technology accessible to more people, Varma set out to develop an alternative to the spirometer that could be just as effective without the expensive price tag.
Ultimately, the 17-year-old found that she could make a lung capacity measuring device with just a few (relatively) simple parts: a 3D printed mouthpiece, an electronics board, and a smartphone.
In short, the device works by having the patient breathe into the 3D printed mouthpiece, which is in turn connected to a PCB which processes the breath data. This information is then sent to a companion app hosted on an Android smartphone or mobile device. The app shows the user the breathing data in a comprehensive graph, and can even analyze the results to help with a diagnosis.
Maya Varma won $150,000 from the Intel Science Talent Search in 2016 for her 3D printed device
The innovative device is purportedly capable of detecting respiratory illness symptoms and classifying them. This will enable users to determine if a patient is suffering from either asthma, chronic obstructive pulmonary disease (COPD), chronic bronchitis, emphysema, or restrictive lung disease.
Impressively, by using a combination of 3D printed parts, inexpensive and accessible electronics, and open source software, Varma says she was able to make her breath analyzing device for only $35.
The ambitious student gained some recognition for her 3D printed device last year, as she was awarded first place for Distinction for Innovation (and a prize of $150,000) at the 2016 Intel Science Talent Search.
Posted in 3D Printing Application
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