For our project, we created a pseudo-sign language for patients in hospitals who have difficulty communicating (including the elderly people).
We used the Myo-Arm band to detect the patient's arm gestures and relay information to the medical staff. We have a text-to-speech synthesizer so the medical staff will receive messages on a dashboard that also displays real-time data from patient sensors. In the case, that the medical staff aren't at their workstation, an SMS message is automatically sent. Based on the severity of the patients need, a phone call describing what happened will also be sent. These are both done using the Twilio API.