Abstract: The invention relates to a digestion system for analyzing the intestinal fluid. The system comprises a compartment containing the fluid content and a micro filter for filtering particles in the fluid content having a size beyond the micro range. The system further comprises a pertractor arranged downstream to the micro filter for removing digested lipophilic particles.

Abstract: The invention relates to a filtration system for filtering a fluid containing solid particles. The filtration system comprising a deformable wall defining a chamber interior to the wall, and a tubular shaped membrane arranged in the chamber. Further, the system is arranged for periodically deforming the chamber wall inwardly and outwardly, respectively, for filtering a fluid that is present in the chamber, exterior to the membrane.

Abstract: The invention relates to a device for assessing the disintegration of a dosage form in the gastrointestinal tract, comprising a wall surrounding a cell for being filled with a fluid and for receiving the dosage form, further comprising a pressurizable compartment arranged exterior to the wall for repeatedly deforming the wall between a first state and a second state wherein the volume of the cell in the first state is larger than in the second state, wherein the device also comprises controlling means for quantitatively controlling a fluid flow from and into the cell, and/or for quantitatively controlling a contact force that the wall exerts on the dosage form.