Abstract: The present invention relates to a method for the preparation of chitosan of a degree of acetylation DAr, from chitosan ? having a degree of acetylation DAi lower than DAr, comprising at least one step of purification and at least one step of acetylation of said chitosan ?, said purification step comprising at least one step of solubilization of said chitosan ? in an acidic aqueous medium and at least one step of precipitation of said thus solubilized chitosan, wherein said acetylation step is carried out in a solution on said solubilized chitosan before said precipitation step.

Abstract: Method for preparing a chitosan-based porous layer The present invention relates to a method or preparing a chitosan-based, neutralized compressed porous layer, comprising the following steps: —a) a chitosan solution is prepared, —b) said solution is poured into a mould in order to form a layer, —c) the layer obtained in b) is lyophilized so as to obtain a porous layer, —d) said porous layer obtained in c) is compressed, —e) the compressed porous layer obtained in d) is neutralized by means of an NH4OH solution. It also relates to an implant comprising a layer obtained according to such a method.

Abstract: The invention relates to a device (1) and method for selecting the size and shape of a prosthesis and/or for determining the location of marks to be made on the external face of the skin of a patient intended to receive such a prosthesis, for example for repairing a hernia, comprising a sheet (2) of transparent material, the said sheet comprising:—a plurality of graphical representations (3a, 3b, 4a, 4b, 5a, 5b, 5c, 5d) concentrically embodying the respective outlines of various shapes and sizes of prosthesis,—a plurality of first holes (6a, 6b, 6c, 6d, 6e, 7a, 7b, 7c, 7d, 7e) arranged along the transverse line passing through the centre of the said sheet, and—a plurality of second holes (8a, 8b, 8c, 8d, 8e, 8f, 8g, 9a, 9b, 9c, 9d, 9e, 9f, 9g) arranged along the longitudinal line passing through the centre (C) of the said sheet.

Abstract: Prosthesis (1) comprising a patch (2) made of biocompatible material, said patch having a generally plane geometric shape that defines two opposite faces, a centre, a length and a width of said patch, characterized in that said patch is provided, on one (2a) of its faces, with a single marking means (3) designed to indicate both the centre (C) of the patch and also the longitudinal direction of said patch.

Abstract: A pull-up latch mechanism includes a stator (2) with an inner open channel (20), a cap (10) attached to a cylinder (1) lodged into the open channel (20) of the stator (2), a shaft (8) provided with a latching pawl, and a control system connecting the shaft (8) to the cylinder. The control system is adapted for generating a first movement of rotation of the cylinder, a movement of the shaft (8) away from the cylinder in the direction of the longitudinal axis, for generating a second movement of rotation of the cylinder, and a movement of the shaft towards the cylinder in the direction of a central axis.

Abstract: A pull-up latch mechanism includes a stator (2) with an inner open channel (20), a cap (10) attached to a cylinder (1) lodged into the open channel (20) of the stator (2), a shaft (8) provided with a latching pawl, and a control system connecting the shaft (8) to the cylinder. The control system is adapted for generating a first movement of rotation of the cylinder, a movement of the shaft (8) away from the cylinder in the direction of the longitudinal axis, for generating a second movement of rotation of the cylinder, and a movement of the shaft towards the cylinder in the direction of a central axis.

Abstract: Methods for the preparation of hexahydrofuro[2,3-b]furan-3-ol and especially its enantiomer (3R,3aS,6aR) hexahydrofuro[2,3-b]furan-3-ol, as well as certain novel intermediates for use in such methods are disclosed.

Abstract: The present invention is directed to a novel process for the preparation of compounds having inhibitory activity against sodium-dependent glucose transporter (SGLT) being present in the intestine or kidney.

Abstract: Methods for the preparation of hexahydrofuro[2,3-b]furan-3-ol and especially its enantiomer (3R,3aS,6aR) hexahydrofuro[2,3-b]furan-3-ol, as well as certain novel intermediates for use in such methods.