| 摘要 |
<p>A collector (100) for fluid such as oral fluid having a built in means (12) for collection and an integral indicator in the form of a colour change element (36). The collector operating by total internal reflection or fibre optic means which visually reveals the presence of fluid to the central portion of the collector by the colour change element reacting to wetting. Using a handle (5) as a transmitter by total internal reflection to an observation surface (6) so ensuring the collector has absorbed sufficient fluid for a test to be adequately performed.</p> |
