Blood Glucose Estimation Technology
THE DIABETES market: We need to prepare to capture this market. Anyone that has diabetes, this product will be a godsend. Have a read of this press release:
And per the Press release above it talks about PPG technology: "Helo's features today include measurement of Blood Pressure, ECG, Heart Rate, Respiration Rate, Heart Rate Variability (HRV) analysis for mood and energy levels along with measuring steps, distance and calorie burn. However, this is the first time anyone has used a photoplethysmograph (PPG) to estimate blood glucose levels and incorporate the technology into a wearable device to provide convenient, non-invasive blood glucose estimation and logging on a continuous basis."
I found a great research report that talks about PPG technology. It is so geeky, but this will answer anyone's question about what the heck this stuff is. It was written in 2014, to further help prove that this technology has been around for a while. The abstract that was written for the article is perfect because it sums up what the technology is all about:
Abstract: Photoplethysmography (PPG) technology has been used to develop small, wearable, pulse rate sensors. These devices, consisting of infrared light-emitting diodes (LEDs) and photodetectors, offer a simple, reliable, low-cost means of monitoring the pulse rate noninvasively. Recent advances in optical technology have facilitated the use of high-intensity green LEDs for PPG, increasing the adoption of this measurement technique. In this review, we briefly present the history of PPG and recent developments in wearable pulse rate sensors with green LEDs. The application of wearable pulse rate monitors is discussed.
Found another laymens description of how PPG technology works: "Yellow and/or green LED optical sensors are used to measure the amount of light refracted in the blood vessels utilising the PPG technique. An algorithm is then applied to translate the data from the refracted light into a continuous measure of HR."
This research report found that "In conclusion, the present study results showed favourable outcomes for the six PPG optically sensing HR wearable activity trackers that were tested at rest, and during treadmill walking and running in a healthy sample population. Good criterion-related validity was found between all monitors and the Polar HR monitor. In addition, the wearable activity trackers were deemed accurate for the recreational athlete and for research purposes. Furthermore, wearable activity trackers utilising built-in PPG HR sensors have the potential to overcome the limitations of the traditional chest strap, and to advance the science and practice of PA assessment. Further tests utilising a fixed floor, such as a track, and various indoor/outdoor environments and high-intensity exercises (including weight lifting and bicycling) could confirm the usability of these wearable trackers in expanded exercise settings. Future studies should include different populations and health concerns, such as young and older adults and individuals afflicted with obesity (ie, epidermal thickness) and diabetes (ie, poor blood circulation)."