Patent ID: 7294118
Filing Date: 2007-11-13
Classification: A61M

Abstract:
1. A retractable safety needle comprising: a needle hub having proximal and distal ends and a passage extending between said ends; a needle cannula having a proximal end, a distal end and a lumen extending therebetween, said proximal end of said needle cannula being securely mounted in said passage at said distal end of said needle hub; a resiliently deflectable actuator arm extending from said needle hub, an actuator button being formed on said actuator arm and projecting outwardly relative to said needle hub; a barrel having a proximal end, a distal end and a passage extending between said ends, said needle hub being disposed in said passage of said barrel such that said needle hub, said needle cannula and said actuator arm are moveable relative to said barrel from a distal position where said needle cannula projects distally beyond said barrel and a proximal position wherein said distal end of said needle cannula is disposed in said barrel, said barrel having an actuating opening extending therethrough, said actuator button projecting into said actuating opening and engaging portions of said barrel adjacent said actuating opening when said needle hub is in said distal position, said actuator button being resiliently deflectable out of engagement with said actuating open; a spring disposed in said barrel and adjacent said needle hub for propelling said needle hub to said proximal position when said actuator button is deflected out of said actuating aperture; at least one flange projecting inwardly from said barrel to limit proximal movement of said needle hub; and at least one resiliently deflectable locking finger projecting inwardly from said barrel, said at least one finger being configured to lockingly engage said needle hub when said needle hub reaches said proximal position.