Abstract: Bottle for dispensing fluid comprising a rigid container including an opening with a neck and a separable base. A flexible bag intended to contain the product in fluid form is placed inside the container. The diameter of the neck of the flexible bag is greater than the diameter of the neck of the rigid container, and the neck of the bag has an external flange with a diameter greater than that of the bag and less than the inside diameter of the container. The flexible bag may be filled before or after assembly, and may be used in the dispensing of products in fluid form, especially in the pharmaceutical field.

Abstract: The metering device includes a hollow plunger (5) delimiting a defined volume, mounted so that it can move on a receptacle (1), and communicating with it, as well as an elastic member connecting the plunger to the receptacle, consisting of an elastically deformable cylindrical collar (8) including at least one valve (14) capable of closing off the outlet orifice of the receptacle, and fitted around a closed cylinder (6), having the same axis as the cylindrical collar, integral with the receptacle (1). Application to the administration of pharmaceutical products in fluid form.