Patent ID: 8226604
Filing Date: 2012-07-24
Classification: A61M

Abstract:
1. A needlestick prevention device for an injection device having a hollow needle comprises a sheath for attachment to said injection device, said sheath having first, second and third parts, and being so constructed and arranged that in a first, inoperative position said sheath sealingly encloses said needle, in a second, operative position said first part of the sheath is removed, said second part remains attached to said injection device, and said third part is pivoted about a hinge to expose said needle, and in a third, cover position said third part is pivoted about said hinge to cover at least the tip of said needle, and is retained by said second part, said second and third parts are connected by said hinge and a retaining portion, said retaining portion being engaged in said inoperative position and said cover position, said retaining portion comprises at least one pair of stepped portions on said second and third parts, wherein in said inoperative position said stepped portions are attached to each other by a weakened portion, said weakened portion being adapted to break when the angular movement of said third part from said inoperative position exceeds a predetermined amount.