Syringe, syringe family and metering device

Abstract

Syringe for use with a metering device comprising a centring element with an axial through-passage in a receiver for a syringe cylinder and an axially displaceable piston receiver for a syringe piston, comprising syringe cylinder syringe piston, the syringe cylinder comprising an outlet at the bottom, centring flange at the top on the external periphery for inserting into the receiver, cylindrical piston movement area connected to the outlet, with a first internal diameter, in which the syringe piston is sealingly guided, and at least at a distance of at least 3 mm from the upper end of the syringe cylinder a centring region for inserting the centring element, which has a second internal diameter, which exceeds the first internal diameter and is at least 16.2 mm, the syringe piston at the upper end has a coupling piece for inserting into the piston receiver.

1 - 17 . (canceled) 
     
     
         18 . A syringe for use with a metering device ( 370 ) comprising a centering element ( 60 ) with an axial through-passage in a receiver ( 39 ) at the lower end of a housing for a syringe cylinder ( 2 ) and an axially displaceable piston receiver ( 43 ) within the housing for a syringe piston ( 3 ), comprising
 a syringe cylinder ( 2 )   and a syringe piston ( 3 ),   the syringe cylinder ( 2 ) comprising an outlet at the bottom and a top,   a centering flange at the top of said syringe cylinder on an external periphery ( 12 ) for inserting into the receiver ( 39 ) of a metering device ( 370 ),   said syringe cylinder including a cylindrical piston movement area ( 5 ) connected to the outlet, with a first internal diameter, in which the syringe piston ( 3 ) is sealingly guided, and   at least at a distance of at least 3 mm from the upper end of the syringe cylinder a centering region ( 11 ) designed for insertion therein of a circular hollow cylindrical centering element ( 60 ) of said metering device ( 370 ), which has a second internal diameter, which exceeds the first internal diameter and is at least 16.2 mm and at most 17.7 mm,   and the syringe piston ( 3 ) at the upper end has a coupling piece ( 21 ) for inserting into a piston receiver ( 43 ) of the metering device ( 370 ).   
     
     
         19 . The syringe according to  claim 18 , in which the wall thickness of the syringe cylinder ( 2 ) in the cylindrical piston movement area ( 5 ) is greater than in the centering region ( 11 ). 
     
     
         20 . The syringe according to  claim 18 , with a conical insertion region ( 16 ) at the upper end of the centering region ( 11 ) and/or a conical transition region ( 10 ) between the centering region ( 11 ) and the cylindrical piston movement area ( 5 ) of the syringe cylinder ( 2 ). 
     
     
         21 . The syringe according to  claim 18 , in which the centering flange ( 12 ) has an external diameter of approximately 21 to 24 mm and/or a height of approximately 3.2 to 4.5 mm and/or the centering region is at a distance of at least 3 to 6 mm from the upper end of the syringe cylinder. 
     
     
         22 . The syringe according to  claim 18 , in which the syringe piston ( 3 ) at the top has a disc ( 24 ) below the coupling piece ( 21 ) and between the disc ( 24 ) and the cylindrical centering region an annular gap ( 290 ) is present with a gap width of 0.5 to 2.5 mm. 
     
     
         23 . The syringe according to  claim 18 , which has a filling volume selected from the volumes 10 ml, 5 ml, 2.5 ml, 1 ml, 0.5 ml, 0.2 ml, and 0.1 ml. 
     
     
         24 . Use of the syringe according to  claim 18  in a metering device for receiving and discharging liquids. 
     
     
         25 . The syringe according to  claim 18  in combination with a metering device ( 370 ). 
     
     
         26 . The syringe according to  claim 18 , wherein the centering region ( 11 ) has a contour that interlocks with a complimentary contour of the centering element ( 60 ) of said metering device ( 370 ). 
     
     
         27 . The syringe according to  claim 18 , wherein the centering region ( 11 ) has a geometry characterized in that centering region ( 11 ) bears against the circular hollow cylindrical centering element ( 60 ) of said metering device ( 370 ) when the circular hollow cylindrical centering element ( 60 ) is inserted therein. 
     
     
         28 . A syringe for use with a metering device ( 370 ) comprising a centering element ( 60 ) with an axial through-passage in a cylindrical receiver ( 39 ) at the lower end of a housing for a syringe cylinder ( 2 ) and an axially displaceable piston receiver ( 43 ) within the housing for a syringe piston ( 3 ), comprising
 a syringe cylinder ( 2 ) comprising an outlet at the bottom and a top,   a syringe piston ( 3 ), and   a centering flange at the top of said syringe cylinder on an external periphery ( 12 ) for inserting into the receiver ( 39 ) of a metering device ( 370 ),   wherein said syringe cylinder comprises a cylindrical piston movement area ( 5 ) connected to the outlet, with a first internal diameter, in which the syringe piston ( 3 ) is sealingly guided,   at a distance of at least 3 mm from the upper end of the syringe cylinder a centering region ( 11 ) designed for insertion therein of a hollow centering element ( 60 ) of said metering device ( 370 ), which has a second internal diameter, which exceeds the first internal diameter and is at least 16.2 mm and at most 17.7 mm, the centering region providing a means for centering the cylinder ( 2 ) with respect to the metering device when the centering element is inserted, and   the syringe piston ( 3 ) at the upper end comprising a coupling piece ( 21 ) for inserting into a piston receiver ( 43 ) of the metering device ( 370 ).   
     
     
         29 . The syringe according to  claim 28 , in which the wall thickness of the syringe cylinder ( 2 ) in the cylindrical piston movement area ( 5 ) is greater than in the centering region ( 11 ). 
     
     
         30 . The syringe according to  claim 28 , with a conical insertion region ( 16 ) at the upper end of the centering region ( 11 ) and/or a conical transition region ( 10 ) between the centering region ( 11 ) and the cylindrical piston movement area ( 5 ) of the syringe cylinder ( 2 ). 
     
     
         31 . The syringe according to  claim 28 , in which the centering flange ( 12 ) has an external diameter of approximately 21 to 24 mm and/or a height of approximately 3.2 to 4.5 mm and/or the centering region is at a distance of at least 3 to 6 mm from the upper end of the syringe cylinder. 
     
     
         32 . The syringe according to  claim 28 , in which the syringe piston ( 3 ) at the top has a disc ( 24 ) below the coupling piece ( 21 ) and between the disc ( 24 ) and the cylindrical centering region an annular gap ( 290 ) is present with a gap width of 0.5 to 2.5 mm. 
     
     
         33 . The syringe according to  claim 28 , which has a filling volume selected from the volumes 10 ml, 5 ml, 2.5 ml, 1 ml, 0.5 ml, 0.2 ml, and 0.1 ml. 
     
     
         34 . Use of a syringe according to  claim 28  in a metering device for receiving and discharging liquids. 
     
     
         35 . A syringe according to  claim 28  in combination with a metering device ( 370 ). 
     
     
         36 . A syringe according to  claim 28 , wherein the centering region ( 11 ) has a contour that interlocks with a complimentary contour of the centering element ( 60 ) of said metering device ( 370 ). 
     
     
         37 . A syringe according to  claim 28 , wherein the centering region ( 11 ) has a geometry characterized in that centering region ( 11 ) bears against the circular hollow cylindrical centering element ( 60 ) of said metering device ( 370 ) when the circular hollow