Flask for preparation of e.g. cervical suspension, has basket forming filtering material web whose center is connected to tube linked to position maintaining unit having arms with stop units, where tube allows pipette passage

摘要

The flask has a filtering unit (3) partly immersed in a cytological suspension, and having a basket forming filtering material web (4) whose periphery is fixed on the flask and center is connected to a tube. The tube extends towards an opening (2) of the flask and is associated to a position maintaining unit (8) in the flask, where the unit has arms with stop units. The tube allows the passage of a pipette for drawing the suspension.