The G4B’s technology is based on echolocation (when the sound waves hit a nearby object, they produce an echo that bounces back). It works by using ultrasound and infrared sensors that can help blind users detect obstacles on their path. It can detect any obstacles on all sides within a distance of two meters. The infrared sensor located in the middle of the device allows it to detect obstacles in case the ultrasound sensors fail.

Every time the gadget finds an obstacle, a beep sound is heard (through the audio output) along with vibration, to alert the user.

Amelia created this device after seeing her parents struggle to move Jake. “My brother was getting heavier. Before he had the metal plates put in his leg, he was a lot lighter. A few days after the metal plate were put in, Mum and Dad were struggling because the metal plates were quite heavy”, the student explained.

The invention consists of a portable fabric hoist which is incorporated into the wheelchair's seat cushion which can be wrapped up and attached to hooks, allowing for easy lifting.

Amelia won the littleBIGidea invention prize and is now going to NASA.

The device built by Muhammed is able to store, organize and dispense pills with a 98% accuracy. It aims to improve the quality of life of people who have to take multiple medications a day.

The idea for this solution came after the inventor’s father had an open heart surgery and a kidney transplant, among other health conditions. Because of that, he was required to take 13 medications a day. However, his father sometimes forgot to take the pills and other times they had to be thrown away because he dropped them on the floor.

It was all sparked when, one night, Ross’ painkillers and other methods of self-myofascial release weren’t working: they were not relieving tightness and pain. So Ross picked up an old bat, looped a belt around one end and proceeded to use the leverage to work on his aching muscles.

Then the patient thought he could find a more complex device on the market, but there was none.

Randy got his leg crushed in a steel door, more than 30 years ago, and the doctors had to amputate his leg.

Randy always loved the water but after the accident, he stopped swimming. He and his wife searched for a prosthetic swim leg, but they couldn’t find a solution on the market that would satisfy Randy’s needs. The legs they found where either painful or didn’t work properly.

After almost 14 years of trial and error, the couple came up with an invention: not a prosthetic leg, but a fin – Amp Fin. They tested the gadget on several amputee patients.

The brace aims to offer gentle traction so it can keep from pinching off blood flow to the rotator cuff area while laying down.

Michael was suffering from shoulder pain, which was limiting his movements. He was also having trouble sleeping. He did physical therapy and shoulder steroid injections, but the pain kept coming back.

Malena lost both of her kidneys to E-coli bacteria. She has to drink three liters of water every day to make sure that her body won’t reject the transplanted kidney. It was hard for the girl to get used to this habit, as she kept losing her bottles of water. With a help from a friend, her mother came up with a solution.

Alex Williams,, a 21-year-old student of Colin's who was having trouble in classes because she was blind and her screen-reader was not compatible with images. This made the teacher try to find other ways to explain her some theories about logic gates.

“I was riding home on my bike thinking about how to interface a blind student with a computer, and the idea of making real electrical connections using fingers and copper strips to provide inputs popped into my head. The use of sound as an output was fairly obvious”, Colin explained.

Jake started wearing braces and was reminded of the importance of brushing his teeth. The boy then thought about people who have poor grip and, because of that, have trouble brushing their teeth properly.

“I started to think about people who couldn’t brush and what I could do to help them. People with Parkinson’s and other diseases. The No. 1 condition that makes it difficult is arthritis, and I thought about my grandma Zell, who recently passed away but who had really bad arthritis”, the inventor explained.

Peter Byrne was 21 years old when he wrote PlayStation an email. Peter had been a PlayStation gamer since he was 8 years old and he never had problems with the controllers. But this changed with the PlayStation 4 control pad. Because of his condition, his left hand was hitting the large touchpad in the centre of the controller, which was constantly pausing the game. So Peter wrote PlayStation an e-mail, to see if there was something the console manufacturer could do about this issue.

The team came up with a specially-insulated bra that holds in heat, keeping the chest warm throughout the day. The innovation looks and feels like a normal bra.

Jodie was diagnosed with breast cancer in 2005, and she underwent a double mastectomy. A couple of years later, Jodie noticed her breasts were freezing. But she only realized this once she touched them.

According to Luke, the hospital gowns were making him feel sicker. “Early on during my treatment I told my parents wearing the hospital gown made me feel even sicker. I just wanted to feel like a normal kid. With that in mind we designed a long shirt with snaps along each side for me to wear in the hospital”, Luke explained.

Dwayne was driven to take action because the prosthetics available weren’t good for Liberty and because he and his family had bad experiences with some doctors.

“She needed a prosthetic eye to assist with facial growth, which meant we needed to find an ocularist, someone who specializes in the crafting and fitting of prosthetic eyes. What ensued was two years of ups and downs for Liberty and eventual hopelessness for us, as the eyes Liberty got after the first year weren’t fitting properly, and caused her extreme pain”, he said.

The towel works by having the users easily slide their hand into the straps so that no use of gripping muscles is required. The straps are placed strategically so that the person can dry different parts of the body. The product is machine-washable.

Danica first drew the sketches of the prototype and then showcased her idea. She had help from teachers and volunteers from the Young Entrepeneurs Academy, and went to a local seamstress in order to get advice on what type of materials to use for the prototype.

“Aeropong” is a modification of Ping-Pong which eliminates the ball chasing part of that game. It was hard for Pahnuly to play Ping-Pong because of her lack of hand/eye coordination. So Kusa created a game that is played by tying the string to the ball.

With this app, the user just has to turn on the voiceover in the smartphone’s accessibility setting and tap their phone until he hears a restaurant of their choice, then double tap when they hear what they're looking for. The same thing goes for deciding what to order.

This way, visually impaired people don’t have to rely on others to order for them or ask Braille menus.

According to John, this is the first app of its kind. "This is the very first app on the market where it contains restaurant menus blind people can actually use”, he said.

Louis was driven to create this app because he experienced the impact of grief in his own family: his grandfather drowned when his father was 13 years old. According to Louis, his father fell into a spiral of bad behavior, which could have been avoided if he had had the proper support.

Also, the therapist works with several kids and teenagers who cope with grief and life-limiting illness. But as he realized that that wasn’t an app that could help them, he decided to take action.

Anthony is a medical researcher and bio-hacker. He and his team are working on a protocol to extract insulin from genetically engineered yeast cells and produce a generic drug at a cost of around $10 for a month's supply. According to the bio-hacker, the users could eventually be able to produce the drug in their homes.

“The state of the art in diabetes treatment has changed little in decades, something that I personally am frustrated by along with many others living with diabetes. Whether directly or indirectly, we’re hoping our work will improve access to insulin.”

David came up with this solution because he wanted to find a way to get to work without having to rely on someone else to load and unload his wheelchair from the boot of his car. Since he found nothing like this on the market, he set out to build his own solution.

People were impressed by David’s invention and soon they started asking him to make similar products for them. So the inventor built his own company and started mass producing and selling his devices in 1983.

After launching a successful crowdfunding campaign in 2013, Conor and his co-founders created their own company.