Patent ID: 6533756
Filing Date: 2003-03-18
Classification: A61M

Abstract:
A single-use syringe comprising:a barrel, having an interior volume, an inner wall, and a distal end; a plunger disposable inside said interior volume of said barrel, said plunger having a distal wall and at least one longitudinal vane, said at least one vane having at least one serration; and a barbed clip having at least one point, said point engageable with said inner wall of the barrel, said barbed clip fittable on said vane having said at least one serration, wherein when said plunger is initially withdrawn from said barrel, said at least one point engages said inner wall of said barrel to prevent movement of said barbed clip relative to said barrel and said at least one vane slides under said barbed clip, and wherein when said plunger is then inserted into said barrel, said barbed clip catches on said at least one serration and moves distally along with said plunger.