Sampling pipette having an improved device for adjusting and displaying a volume to be sampled

摘要

The invention comprises: a hollow outer body (6) forming a handle; - a pipetting control rod (14); - related to the upper part (2) of the sampling pipette (1) comprising a device (20) for adjusting and indicating the volume to be sampled, the device for adjusting the volume being sampled and through which the control rod (14) passes It comprises a first screw member 22 and is spaced at an angle from each other about the longitudinal axis 3 and cooperates with a first reference 44 to provide information about the volume to be sampled. and a set of first volumetric scales 42 . According to the invention, the first screw member 22 is constrained to rotate with one of two elements consisting of a first set of volumetric scales 42 and a first reference 44 , the The element is disposed axially between the control button 16 and the hollow outer body 6 forming the handle.