Photo of Pedro Aguilera

Computer & electronics hardware

Pedro Aguilera

Combining pressure sensors with smart algorithms in an app designed to help users with reduced mobility to prevent pressure ulcers

Year Honored

Prev UPP

Latin America

Hails From

The industrial engineer Pedro Aguilera tested out his first prototype on his young nephew. He wanted to confirm whether the sensors worked properly and pressure movements were correctly analyzed...and he was not disappointed: all of the target data had been captured and processed. And thus, was born Prev UPP, an app designed to prevent pressure ulcers aimed at improving the quality of life for people confined to a wheelchair. Thanks to his invention, this young Chilean has earned a spot amongst MIT Technology Review, Spanish edition´s Innovators Under 35 Latin America 2017.

Prev Upp is comprised of a kind of cushion, which the user places underneath them on the seat, sensors which are strategically placed on the user´s body, and a battery. This combination is capable of detecting pressure differentials and sends this data to the user´s smartphone. Upon detecting an alteration, the app sends an alert. Prev Upp´s potential impact is highly noteworthy: over 65 million people worldwide are confined to a wheelchair, and preventing pressure ulcers is one of the factors which define the quality of care at any hospital. Wheelchair users are especially vulnerable to pressure ulcers, which affect the patient´s skin, muscles and even bones. These sores can form in a question of less than two hours.
At the end of March, Prev Upp launched a trial with 60 patients at the Workers´ Hospital in Santiago (Chile). Its creator explains: "We have been very well received by the patients. They ask us when it will be available for purchase." From this initial trial, the team will conduct a study to define a probability model. Aguilera highlights that his objective is "to be able to predict, with a minimal range of error, the probability [%] of a new ulcer forming in a specific area of the user´s body based on the immobility of each subject."  

With regards to other products on the market, Prev Upp aims to differentiate itself from the competition in two key areas: portability and the use of the lightest possible, long-lasting battery. "We want an efficient product and not just something that promises the moon and then fails to deliver," says Aguilera, adding that he is already in contact with suppliers regarding the development of future designs.

Cost savings will be a determining factor in the potential adoption of Prev UPP. According to Aguilera´s estimates, a private hospital in Chile on average spends approximately 70 million Chilean pesos (about 112,000 US dollars or 92,000 euros) per year treating patients´ pressure ulcers. "Prevention is much cheaper. The hospital benefits, and their patients are covered by their health insurance, so [our] system would save both parties a lot of money," Aguilera points out.

Aguilera uses a wheelchair himself, and he is clear about what drives him: "I have seen the suffering that these ulcers cause. The physical and mental condition [of these patients] is very complex. Many are bedridden, with a high risk of forming further sores. Is it a [vicious] cycle; and that is where my motivation resides: in creating something to help people in my situation."

"What is really exceptional [about Aguilera´s product] is its low cost, its potential to massively help many people with reduced mobility and the application´s personalization potential," highlights the professor of telecommunications at the European University of Madrid (Spain) and jury member for the Innovators Under 35 Latin America 2017 awards, Víctor Padrón.