Patent ID: 6231552
Filing Date: 2001-05-15
Classification: A61M

Abstract:
A syringe for introduction or withdrawal of a liquid from a body, said syringe comprising:(a) a hollow needle for penetrating said body;(b) a hub for receiving said needle;(c) a syringe barrel selectively engageable to said hub and including a receptacle portion for receipt of said liquid;(d) an exterior thread profile on one of said hub and said barrel;(e) an interior thread profile on the other of said hub and said barrel for mating secure engagement with said exterior thread profile;(f) an outwardly projecting abutment on one of said hub and said barrel; and(g) a ramped receptacle for receipt of said abutment and formed in the wall of the other of said hub and barrel for terminating relative reciprocal movements between said hub and said barrel in one direction when said abutment is at one position relative to the other of said hub and said barrel, and for thereafter resisting reciprocal movements between said hub and said barrel in another direction.