Patent ID: 8114361

Claim:
A metering device for utilization with a syringe ( 19 ), said syringe including a syringe cylinder ( 20 ) a fastening portion ( 21 ) with at least one axially directed sensing surface ( 23 ) projecting from the upside, and at least one alignment nose projecting from the outer perimeter of the fastening portion ( 21 ), and a plunger with a plunger rod, the metering device comprising: an accommodation ( 3 ) for the fastening portion ( 21 ) of the syringe cylinder ( 20 ), the accommodation ( 3 ) having an axial opening ( 4 ) for axially inserting the fastening portion ( 21 ) into a fastening position, a sensing device ( 6 ) disposed in the accommodation ( 3 ) with at least one sensing member ( 37 ) projecting from a basis surface ( 52 ) of the sensing device ( 6 ) facing the axial opening ( 4 ), for sensing the at least one sensing surface ( 23 ) of the fastening portion ( 21 ) inserted in a fastening position, at least one axial guiding member ( 7 ) for adjusting the at least one alignment nose ( 26 ) into an angular position with respect to rotation around the axis of the metering device, in which the syringe ( 19 ) is axially directed towards at least one sensing member with at least one sensing surface ( 23 ), an accommodation body ( 8 ) with a plunger accommodation and a further axial opening for axially inserting the plunger rod ( 31 ) into a fastening position, fastening devices ( 13 , 14 ) for detachably holding fastening portion ( 21 ) and plunger rod ( 31 ) in their fastening positions in the accommodations ( 3 ) and in the plunger accommodation, and plunger adjustment devices ( 10 ) for shifting the accommodation body ( 8 ), wherein the axial guiding member ( 7 ) is present in the accommodation below the sensing device ( 6 ), wherein the guiding member ( 7 ) has a guiding contour ( 44 ) on the side that faces the axial opening ( 4 ), said guiding contour ( 44 ) has at least one indentation ( 45 ) for receiving at least one alignment nose ( 26 ) when the syringe ( 19 ) is disposed with fastening portion ( 21 ) and plunger rod ( 31 ) being in their fastening positions, and the at least one raised part ( 46 ) neighboring the indentation ( 45 ) has a distance from the basis surface ( 52 ) of the sensing device ( 6 ) greater than the at least one indentation ( 45 ), wherein the syringe ( 3 ) is adapted to be displaced with the at least one alignment nose ( 26 ) from the at least one indentation ( 45 ) to the at least one raised part ( 46 ).