Injection device comprising a syringe
First Claim
1. 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, anda 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.
2 Assignments
0 Petitions
Accused Products
Abstract
The invention relates to an injection device, comprising an injection syringe (1) with a tubular syringe body, provided at a porximal end with a fixing collar (16), projecting radially outwards, an injection piston, arranged to slide within the body, a needle protection device (2), comprising a protector support (20) and a sliding needle protector (22). The device comprises a stop pin (25) for the piston stop (8), said pin (25) is mounted on the protector support (20) and defines, in the extension of the syringe body, a piston circulation passage of which the minimum section is larger than the section of the running part (10) of the piston and less than the section of a shoulder (15) of the piston.
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Citations
8 Claims
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1. 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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
Specification