AUTOMATIC INJECTION DEVICE WITH SENSITIVE INDICATOR OF COMPLETED INJECTION

摘要

The present invention relates to a device (1) for automatic injection of a product (6), comprising : a container (2) and a piston (8), biasing means (13) for pushing said piston (8) distally during the injection, a housing (14) designed for receiving at least partially said container (2), said piston rod (9) and said biasing means (13), said container (2) being fixed with respect to said housing (14) during said injection, characterized in that it comprises piston position indicating means (20) designed for producing a sensitive indicator when said piston (8) is near the distal end (4) of the container (2) and the product (6) is substantially completely expelled from the container (2).