A wetting apparatus for medical devices that can be inserted in the human body has a film pouch comprising a first chamber for accommodating the medical device and a second chamber in which a wetting agent is disposed, wherein the first chamber and the second chamber are separated from one another by a clamp attached to the outside of the film pouch. The wetting apparatus is an improvement on known devices, and facilitates a liquid-tight seal and ensures easy handling. To this end, the clamp comprises two interlocking strips between which the film pouch is enclosed, wherein one of the strips includes a groove that forms an undercut and the second strip forms a rib complementary to the groove.
