A hollow needle fixed in a chamber establishes a connection between an upstream coupling and a downstream coupling when it passes through a plug. The plug is made of a material such that it regains its closure properties when the needle is no longer passing through it, and it is pushed away from the...http://www.google.es/patents/US5380306?utm_source=gb-gplus-sharePatente US5380306 - Unitary composite connector for a liquid circuit, in particular for medical applications
Unitary composite connector for a liquid circuit, in particular for medical ...
