A flexible, tubular envelope, termed a "shroud", for sheathing a catheter. The shroud, passing over the entire catheter, is partially disposable in the distal end of the catheter and is extractable therefrom by manipulation of the user. The shroud terminates in a closed end that includes an integral...http://www.google.fr/patents/US6217569?utm_source=gb-gplus-shareBrevet US6217569 - Integral shroud-collector for urinary catheter