Abstract: Exoskeleton kinematic chain arranged to pivotally connect a first element to a second element, said first element comprising two pivot points A1 and B1 located at a distance A1B1, said second element comprising two pivot points A2 and B2 located at a distance A2B2. The exoskeleton kinematic chain comprises a first external link pivotally connected to the first element at the pivot point A1 and a first end link pivotally connected to the first external link at a pivot point D1, said pivot point D1 being located at a distance A1D1 by the pivot point A1. The exoskeleton kinematic chain comprises then a second external link pivotally connected to the second element at the pivot point A2, and a second end link pivotally connected to the second external link at a pivot point D2, said pivot point D2 being located at a distance A2D2 by the pivot point A2.

Abstract: The present invention refers to a process, and to the related apparatus, for the in vitro preparation of a biomimetic tissue prostheses of the tympanic membrane from mesenchymal stem cells; such prostheses are used for repairing or reconstructing the injured tympanic membrane in patients needing it, for example as a consequence of various trauma or pathologies.

Abstract: A ventilation apparatus (1) for pulmonary scintigraphy, having an inhalation collector (10) to which an element of inhalation (20), a feed duct (31), defining a flow of marked aerosol (55), and an outlet duct (32), for disposal of exhaled flow and any aerosol surplus, are connected. The feeding air may be of bi-level type, whereby the air flow rate when breathing out is low, even if always positive. The collector (10) has a first interposition element (21) located at the connection with the air feeding tube (31) that only allows inlet flow towards the patient. A second interposition element (22) is located at the connection with outlet duct (32). The presence of one-way valve(s) (21, 22) allows breathing of the marked aerosol in the bronchial branches of the patient (20) in a completely natural manner following physiologic respiration and avoiding hyper-accumulation of marker in the largest bronchial branches.