How it works

The core of the Walletmed system lies in its innovative approach to continuous human body glucose monitoring. Our system is composed of a subdermal implant, a smartwatch, and a dedicated smartwatch application, designed to function harmoniously.

The implant

A passive NFC tag of 3mm diameter and 14mm length, is placed beneath the skin. It doesn’t have an internal battery and houses a Raman spectrometer and a Fabry-Perot interferometer. Upon receiving power from an active NFC tag such as a smartwatch worn over it or a smartphone, the implant emits infrared light and measures its absorption by glucose present in the intercellular fluid. This sophisticated implant also includes sensors to measure body temperature, oxygen saturation, and heart rate.
Walletmed - Implant
Walletmed - Smartwatch

The smartwatch

Worn by the user, carries our application – though the application can be downloaded onto any smartwatch for those who prefer to measure on demand, rather than continuously. The application collects raw optical data (Raman spectra) and employs artificial intelligence and machine learning algorithms to convert these into numerical data. With an accuracy within 10%, this method meets the standards required by medical agencies like FDA/EMA for certifying the device as a medical product.

The app

Within the application, users can set contacts to be notified in the event of extremely high or low glucose levels – be it a doctor or a loved one. In the case of continuous glucose monitoring, users will also be able to see a graph of their glucose levels from the past few minutes or hours. Additionally, we aim to create a marketplace within the application, where users can purchase necessary supplements or even schedule appointments with specialists.
Walletmed - App
Walletmed - Optical measurement

Unique feature

A unique feature of our system is that our glucose measurement method is entirely optical. There’s no enzyme or substance that evaporates or disappears, causing system recalibration. Once installed beneath the skin, the user won’t need to calibrate or replace the implant for at least ten years. The implant will only be activated upon receiving a single electrical impulse through NFC – for instance, half a second every five minutes when wearing a smartwatch, or a few seconds per day when using a smartphone.
Installation of the implant into the body is achieved via a single-use applicator, similar to those used for contraceptive implants.
In sum, Walletmed offers an innovative, convenient, and efficient solution for long-term, continuous glucose monitoring. Together, let’s ‘Live On’.