Patent ID: 7001364
Filing Date: 2006-02-21
Classification: A61M

Abstract:
1. A retractable needle safety cap device comprising: a) a first shield having a first end and a second end with said first end having means of attachment to a needle hub, b) a second shield having a first end and a second end with said first end being telescopically mounted relative to said first shield and slideably moveable from an extended position covering a needle to a retracted position uncovering said needle when a force is applied to said second end of said second shield, c) a groove system formed on the inner surface of said first shield comprised of a continuous groove with guiding walls and restricting walls, d) a knob projecting from the outer surface of said first end of said second shield and being engaged to said groove system of said first shield and automatically guided into a locked position by said guiding walls upon extension of said second shield whereupon said restricting walls prevent further movement of said knob, e) a spring urging said second shield toward its extended position.