Patent ID: 9457157
Filing Date: 2016-10-04
CPC Classification: A61M

Claim Text:
1. A protection device intended to at least partially cover an injection needle of an injection device, said protection device comprising at least: a support provided with a fixing device intended to secure said protection device to the injection device, a sleeve comprising a distal end intended to come into contact with an injection surface and provided with an orifice intended to allow said injection needle to pass, said sleeve being arranged in such a way as to be moveable axially in translation with respect to said support from a first position known as the storage position, in which the distal end of said sleeve is at a distance a first return device for returning said sleeve at least from the injection position to the protection position, wherein said protection device comprises at least: an axial-guidance device for guiding said sleeve, arranged in such a way as to prevent said sleeve from rotating as said sleeve moves axially with respect to said support at least from the injection position to the protection position, at least one peg, directly and at least elastically coupled longitudinally to said support or to said sleeve and housed in a running passageway provided in the other of said sleeve or said support, said running passageway forming more or less a U shape including a first section taken by said peg as said sleeve moves from the storage position to the injection position and a second section taken by said peg as said sleeve passes from the injection position to the protection position, said peg being designed to be laterally mobile, a first safety device, at least part of the first safety apparatus being elastically deformable, said first safety apparatus being arranged in such a way as to prevent said peg from returning from said second section to said first section, and a second safety apparatus arranged in such a way as to block said peg when said sleeve is in the protection position, said second safety apparatus including first and second steps extending into said second section of said running passageway so as to be situated facing one another to define a first narrowed region which inhibits passage therethrough of said peg.