A coupling for connecting the ends of medical apparatus tubes. The coupling has male and female conical mating elements on first and second end pieces. Each end piece is adapted to receive the end of a tube. The end pieces are locked together to prevent unintentional separation. Locking is achieved by...http://www.google.fr/patents/US4405163?utm_source=gb-gplus-shareBrevet US4405163 - Coupling for medical apparatus tubes
