A two-piece adapter for rotatably connecting two fluid transport members, the adapter including a stem for one of the members, and a connector (which may be for example a Luer connector) for the other member. The connector has a collar which is wrapped around the flange to capture the stem. The collar...http://www.google.de/patents/US4932114?utm_source=gb-gplus-sharePatent US4932114 - Method of making a rotating adapter for catheters
