Patent ID: 7938808

Claim:
An injection device comprising: an injection syringe comprising: a tubular syringe body equipped at a proximal end with a fixing collar projecting radially outward; and an injection plunger mounted to slide within the body by being introduced into the body from the proximal end of the body, the plunger comprising a distal end, provided with a plug, engaged in the syringe body and extended toward the proximal end by a common portion of the plunger, the plug comprising a shoulder turned toward the proximal end and defined between the distal end and the common portion of the plunger, and a needle protection device comprising: a protector support delimiting a conduit for receiving the syringe body, which protector support comprises means for axially fixing the body relative to the protector support, a needle protector mounted so as to be displaceable relative to the protector support between a retracted position and an extended position, wherein the device comprises a stop clip for stopping the plunger, which clip is planar and is in the shape of a hollowed disc so as to form a U, said clip being carried by the protector support and defining, in the extension of the syringe body, a travel passage for the plunger, the minimum section of which is greater than the section of the common portion of the plunger and is smaller than the section of the plunger shoulder.