A device costing just pennies, based on an idea by a University of Manchester Professor to help his son use an inhaler, could be a gamechanger for asthma patients.
The impressive results of a small scale randomized controlled trial called the Clip-Tone System -comprising a simple inhaler add-on and a smartphone app – was funded by ³Ô¹ÏÍøÕ¾ Institute for Health and Care Research andAsthma + Lung UK .
The smartphone app created by Clin-e-cal, a digital health company spun-out from the University of Manchester and supported by Clement Clarke International, helps patients learn to use their inhalers properly.
The Clip-Tone System provides day to day guidance feedback to steer inhaler users towards correct inhaler technique.
And as up to 90% of inhaler users do not use their inhalers correctly, the system is likely to improve efficacy of treatment given via inhaler.
Clip-Tone System builds on a simple whistle – the Clip-Tone manufactured by Clement Clarke International – that clips onto the inhaler’s canister, and sounds when a user inhales. The acoustic signal is picked up by the Clin-e-cal smartphone app, giving real time feedback on good or poor technique.
Professor Tariq Aslam, who is also a consultant ophthalmologist, designed the original prototype software10 years ago for his then 4-year-old son Rafi, who needed to use a special form of asthma inhaler for children.
At times, Rafi needed to take an inhaler every four hours but found he found it traumatic and hard to accept the mask and spacer device pressed against his mouth in his wheezy state.
A microphone built into the inhaler’s mask is picked up by software designed by Prof Aslam, which allowed a cartoon robot to progress through various storylines, like knocking over obstacles with footballs, when Rafi used the device properly.
The device he called the Rafihaler helped his son master the technique and was then able to take his medication properly and miraculously without distress.
Professor Aslam said: “My son Rafi really struggled to take his inhaler which was so stressful and frightening for us all. I was determined to do something about it and so designed a system on a shoestring which could help train him.
“Not only it did it work spectacularly, he actually found the experience enjoyable. It was utterly transformational- and from that time on Rafi was able to take his asthma meds when he needed them.”
After joining forces with Clare Murray, Professor of paediatric respiratory medicine at The University of Manchester the smartphone feedback system was redesigned to replace the microphone and take advantage of the Clip-Tone training tool, which enabled adult users to be guided by both acoustic and visual stimuli.
The randomized control trial of 117 adults, led by Professor Murray, analysed the efficacy of the Clip-Tone System (CTS) in asthmatic patients over 1, 3 and 6 months, using a scoring system for the inhalation technique and measuring the mean inhalation time.
