This project was headed up by a UK Government department with support from the Bill and Melinda Gates Foundation to greatly broaden the scope of diagnostics for oral and systemic diseases in developing countries. A key part of the challenge for Maddison was to develop oral swab solution that provided simple fluid extraction from the swab without the use of a centrifuge. It also needed to be very simple to use and extremely low cost.
Development & Solution
Maddison explored a number of design concepts before settling on a solution using a conical swab compression geometry combined with a dropper. The design was then optimised through a series of prototypes and testing to ensure enough fluid was collected and the squezing and dispensing action worked well.
The user takes the swab of the gums and then screws the swab into the receptacle which automatically squeezes it to leave the fluid sitting on top of the pad. The user then inverts the device and the fluid runs down the internal stem to be dispensed by the built in dropper by squezing the flexible sides. Maddison worked closely with manufacturers to select the best materials and dimensions to ensure a highly repeatable solution. We also devoped the Instructions for Use and the packaging. The unique design has been patented and it’s use is expanding in developing regions.