A medical valve has a first housing portion and a second housing portion capable of mating with the first housing portion to form an interior. The medical valve also has a valving element within the interior. The first and second housing portions have mating longitudinal snap-fit structures for longitudinally...http://www.google.de/patents/US6892998?utm_source=gb-gplus-sharePatent US6892998 - Medical valve and method of assembling the same