Abstract: The present invention refers to a process for the preparation of P(?O) heteroatom derivatives of the dibenzooxaphos-phacycles compounds of formula 6H-cibenzo [c.e] [1.2] oxaphosphinine 6-oxide (DOPO) and dibenzo [d.f] [1.3.2] dioxaphosphepine 6-oxide (BPPO). It also refers to a process for the preparation of polymeric formulations containing it: and a process for the preparation of a flame retardant polymer using the P(?O) heteroatom derivatives as monomer.

Abstract: A medical device for enabling a communication between a target zone within a body and an outside of the body. The device includes an inner guide and an outer extending from a rear end to a distal end and having an internal cavity. The internal cavity receives the inner guide therein. The medical device shifts from a guiding position for accessing from an outside of the body to the target zone to an operating position for communication between the outside of the body and the target zone. When the medical device is in the guiding position, the internal cavity of the outer tube substantially fits the inner guide for traveling together towards the target zone; and when the medical device is in the operating position, the distal end of the outer tube is at the target zone and the rear end of the outer tube is outside the body.

Abstract: A converter device for a laryngoscope intended to be linked to a blade (6) of a laryngoscope, having a straight section (7) and a curved section (8), along with a light source (14) typical of the laryngoscope, for providing it with an additional viewing system in tracheal intubation procedures. The device comprises a central body (1) of tubular section with a through hole (2) for housing an imaging system (3), an upper wing (4) which can be coupled to the curved section (8) of the blade (6), provided with an elastic adjustment portion (11) for adapting to the curved section (8) of the blade (6), and a fastening portion (12) for preventing lateral movement and movement of the device, and a lower wing (5) which can be coupled on the straight section (7) of the blade (6) with an elastic fastening section (13) for adapting to the edge of said straight section (7).