Alexandria, VA

Precise tourniquet for improving safety during emergency situations

The Thomas Jefferson High School for Science and Technology InvenTeam invented the Automatic Precise Tourniquet (APT) to facilitate a faster and more convenient emergency response in areas lacking adequate medical services, and to simplify the application of an automated emergency tourniquet for untrained medical professionals. The APT inflates to capacity within 45 seconds to sufficiently stop arterial blood flow, and weighs less than five pounds. The APT consists of: • a pressure-detecting cuff that is applied to the limb in need of medical aid, • a pressure regulator that uses 16 gram compressed CO2 cartridges to inflate the cuff, and • an Arduino that controls the cuff and regulator. The device is powered by a 9V battery and has an LCD interface that visually instructs the user on operation. The APT is designed to be carried with ease and is small enough to be stored in bags such as backpacks and travel cases.

Recent Team Blogs

April 20, 2016
Hi, everyone— Last Sunday (17 April 2016) we hosted a booth at the USA Science and Engineering Festival. We had so much fun interacting with people so interested in science and our project. Pictures are below: More updates very soon. Have a great week!
March 12, 2016
Thanks to the many of you who came to our Mid-Grant Review on March 9th. We had a great time and learned so much thanks to your comments and suggestions. Reminder to follow us on Twitter @APTourniquet for updates. Next steps: finish work on pressure regulator, and code interactions between...
March 6, 2016
Yesterday, we hosted a work session that ended successsfully! We are now able to inflate our cuff, read the pressure using an Arduino, and store these pressure readings in a format usable by a program. This is a good step toward creating our prototype, as we have our basic system set up (...
February 29, 2016
Hello, world! We are hosting our Mid-Grant Technical Review on Wednesday, March 9th, 2016, from 6:00 pm to 7:30 pm, located at TJHSST in the Da Vinci Commons. Refreshments will be provided, and admission is free of charge. If you are in the area, come stop by and attend! We’d love to...
January 21, 2016
Hello, world! Last weekend, we were invited to kick off the 2016 Global Spark!Lab Invent It Challenge. Pictures below! We were so fortunate to have the opportunity to be interviewed by Susannah Fox, Chief Technology Officer of the U.S. Department of Health and Human Services. Special...
December 23, 2015
Hello, world! It's been a while since our last blog—because we haven't blogged at all this year. Oops. We promise to keep you all updated in the coming months. In any case, here's a lengthy update on our progress. For those of you unfamiliar with our project, we essentially strive to...