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Helmut Uwe [OOVAE] Terton - Fab Academy

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Final Project

Ideation and first sketches of the Sleep Apnoea Monitor Device/App

Sleep apnoea is a potentially serious sleep disorder in which breathing repeatedly stops and starts. If you snore loudly and feel tired even after a full night's sleep, you might have sleep apnoea.
 
I had sleep apnoea when I was over weight due to too much alcohol intake. Once I stopped drinking four years ago I lost 20 kilos and the sleep apnoea went away.
 
My good friend Rachel has sleep apnoea too and she is using a breathing machine. She has lost weight and is very fit but is afraid to stop using the machine because she does not know if she still has sleep apnoea or not.
 
Together we thought that it would be good to have some comfortable wearable tech that monitors your O2 levels, sleeping position and heart rate. When O2 and/or heart rate becomes an issue the device wakes you up. It also could send data to an mobile app for monitoring sleep over a longer period of time. This would be particular helpful for people loosing weight and gaining fitness from exercising.
 
Sleep position is key, laying on the back will make the tongue fall back on the airways and cause snoring and sleep apnoea. The device is monitoring the position via a gyrometer and wakes the person up via an alarm or vibrations so that they can correct their sleeping position and lay on their belly or side.
 

Fig.1 - A gyrometer is monitoring the sleeping position.
Fig.2 - wearable tech mointoring oxygen levels and heart rate. Sending data wireless to a mobile app.

What is allready out there?

Commercial solutions: LOOKEE® Wrist Sleep Oxygen Monitor with Vibration Alarm on Finger for Apnea Events & Low O2 Level | Overnight Pulse Oximeter Continuously Tracks Blood Oxygen Saturation Level, Heart Rate, & CPAP Effectiveness | Free Mobile App with Sleep Reports and Data Management | Sports, Aviation and General Wellness Use
 
www.lookeetech.com/products/lookee-sleep-monitor-with-vibrating-alarm-for-sleep-apnea

Fig.3 - Lockee Monitor

Wellue SleepU™ Wrist Oxygen Monitor:
Track Blood Oxygen Level Every Second with Vibration Alarm Record heart rate & oxygen levels every second continuously.
 
https://getwellue.com

Fig.4 - wearable tech mointoring oxygen levels and heart rate. Sending data wireless to a mobile app.

McKinney Sleep tester monitoring O2 and heart rate.Sending data via bluetooth. sleeprightmckinney.com

Fig.5 - wearable tech mointoring oxygen levels and heart rate. Sending data wireless to a mobile app.


 
Open source solutions:
 
Dhaval Adjodah Sleep apnea causes a decrease in blood oxygen and is caused by obstructions in the sleep passages that also result in snoring sounds. I want to have a microphone that detects snoring sounds and then actuates a pump connected to a pillow that forces me to change sleeping position by selectively inflating and deflating sections of the pillow. In the spirit of spiral development, being able to sense the sound, do some elementary operations and then activate a motor will be satisfactory.
 
http://fab.cba.mit.edu/classes/863.16/section.CBA/people/Adjodah/final.html
 
http://fab.cba.mit.edu/classes/863.16/section.CBA/people/Adjodah/images/final/paper.pdf

Fig.6 - wearable tech mointoring oxygen levels and heart rate. Sending data wireless to a mobile app.

Julia Currie & Nicholas Sarkis
 
The project consists of two main pieces: a base station and a glove.
 
The glove contains a heartbeat sensor, a gyroscope and an accelerometer to measure movement, a conductive stretchy cord to measure breathing rate, and a wireless transciever to relay all of this information to the base station. The base station receives this data from the glove, analyzes it, and saves it so that the user can look back on the quality of their sleep.
 
people.ece.cornell.edu
 

Fig.6 - wearable tech mointoring oxygen levels and heart rate. Sending data wireless to a mobile app.

 

Really Homemade Oximeter Sensor © CC BY-NC
 
How to make an oximeter sensor to measure heartbeat and oxygen saturation in blood, using a few components that any maker already has.
 
really homemade oximeter sensor
 

Fig.6 - wearable tech mointoring oxygen levels and heart rate. Sending data wireless to a mobile app.

 

Open Source Pulse Oximeter for COVID-19 © GPL3+
 
COVID-19 is a disease caused by the SARS-CoV-2 virus that primarily attacks a person's respiratory system. Some milder symptoms can include fever, aches, and chills, but it can also lead to more serious conditions such as pneumonia. A person who has pneumonia or even slight shortness of breath might not know when to go to a hospital, especially as they start to get even more overwhelmed. This is why this open source pulse oximeter was created, which can assist in getting people the help they need and get accurate information about their current condition.
 
open source pulse oximeter for covid-19
 

Fig.6 - wearable tech mointoring oxygen levels and heart rate. Sending data wireless to a mobile app.

 

Arduino-Based Pulse Oximeter Setup
 
If you need to understand your blood oxygen levels, taking readings is easy and non-invasive thanks to the pulse oximeter. These devices were difficult to find a few months ago, which brought new attention to how pulse oximeters work (and if there is a DIY option). As it turns out, you can make your own pulse oximeter display using an Arduino board and the appropriate sensor setup.
 
Experiment: DIY Pulse Oximeter with Arduino


 
Fig.6 - wearable tech mointoring oxygen levels and heart rate. Sending data wireless to a mobile app.

 

Measure Heart Rate and SpO2 with MAX30102 © GPL3+
 
this tutorial we gonna interface MAX30102: pulse oximetry and heart rate monitor module with Arduino UNO board, and then make a project for measuring BPM using this module + OLED display and a Buzzer. BPM are the "beats per minute" and they are around 65-75 while resting for a normal person, athletics may have lower than that, and the SpO2 is the Oxygen saturation level, and for a normal person it's above 95%. measure heart rate and spo2 with max30102
 

Fig.6 - wearable tech mointoring oxygen levels and heart rate. Sending data wireless to a mobile app.

 

SparkFun Pulse Oximeter and Heart Rate Monitor Hookup Guide
 
The SparkFun Pulse Oximeter and Heart Rate Monitor is an I²C based biometric sensor. Utilizing two chips from Maxim Integrated, the SparkFun Pulse Oximeter and Heart Rate Monitor has both the MAX30101 biometric sensor and MAX32664 biometric hub. While the former does all the sensing, the latter is an incredibly small and fast Cortex M4 processor that handles all of the algorithmic calculations, digital filtering, pressure/position compensation, advanced R-wave detection and automatic gain control.
 
sparkfun pulse oximeter and heart rate monitor hookup guide
 

Fig.6 - wearable tech mointoring oxygen levels and heart rate. Sending data wireless to a mobile app.

 

Materials:
 
I decided to go with a bamboo fabric for the glove because it is comfortable to wear at night and it is biodegradable. Bamboo fabrics store is offering a variety of fabrics.
 
So where from here?
 
I will discuss options with my tutors Daniele and Ferdi.


Last update: January 03/03/2021


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