Patent ID: 6761706
Filing Date: 2004-07-13
Classification: A61M

Abstract:
In combination,a hub; a needle guard removably mounted on said hub, said needle guard having a lock ring mounted therein and a transversely movable float ring disposed therein in spaced relation to said lock ring, said lock ring having an aperture and said float ring having an aperture; and a needle secured to and extending from said hub through said aperture of said lock ring and through said aperture of said float ring, said needle having an enlarged portion at an end thereof of lesser radial extent than said aperture of said float ring for passing through said float ring in response to a withdrawal movement of said hub and said needle relative to said needle guard and of greater radial extent than said aperture of said lock ring for abutting against said lock ring in response to a withdrawal movement of said hub and said needle relative to said needle guard whereby upon withdrawal of said needle from said float ring, said float ring moves transversely of said needle to block a return movement of said needle from said needle guard.