matter of the invention will be described in greater detail with reference to the accompanying drawings in which fig5 and 6 are diagrams showing how various types of analysis may be made from such a device according to fig4 the device is essentially constituted by a collection tube 100 made of a supple and smooth transparent material and having a length of the order of 23 cm and a diameter of the order of 3 mm this tube 100 presents a rounded closed distal end 20 by which it is intended to be introduced in the uterine cavity and an open proximal end 30 a plunger 40 measuring about 1 cm in length may slide in the inner part of the collection tube 100 this plunger 40 is connected by a rod 50 to an actuation knob 60 projecting through the open proximal end 30 of the tube so as to allow the practitioner to displace the plunger 40 a flattened part 70 provided at the proximal end 30 of the tube 100 prevents any untimely emergence of the plunger 40 marking graduations 80 located on the periphery of the collection tube 100 in particular at 4 5 6 7 8 9 and 10 cm from its distal end 20 make it possible to measure the depth of the uterus the distal end 20 of the tube 100 is futhernore provided with a lateral suction aperture 90 measuring about 2 mm in diameter as well as with a ground part 1001 extending over a length of 1 to 1 5 cm over the whole periphery of the collection tube 100 this ground part 1001 is shown hatched in the figures after disinfection of the cervix of the uterus and.