The GPS Shoes, originally launched two years ago, can expect to see a resurgence of interest as the number of Alzheimer's patient grows with experts predicting numbers to double by 2030.

The shoes contains a GPS tracker built in the heel allowing caretakers to keep tabs on patients or loved-ones without the risk of patients removing the device. If the patient walks outside the designated area, a text or email will be sent to the caretaker. Many patients with dementia resist new or unfamiliar items, especially something personal like shoes.