A description is given of a resorbable self-supporting conical device (100) in fabric (1), preferably in PGA fabric, suitable to be used as an implant for use in tissue reconstruction of the renal pelvis and/or of the ureteropelvic junction following stenosis, neoplasms or other types of diseases that obstruct the urine flow, said device (100) having a convex larger base with a central hole in said convex base and a smaller base also provided with a central hole, said conical device (100) being further provided with one or more reinforcing rings (2) of different diameters, in a resorbable thermoformed polymeric material and attached integrally to said fabric (1), said device being shapeable, in situ during the surgical operation, to the shape of the excised area of the renal pelvis and/or ureteropelvic junction, by means of cuts along one or two cutting planes, so as to allow a tissue reconstruction in the original natural form, said device (100) being implantable without any surface coating of cultured cells of tissue and/or any surface treatment to promote the engraftment of the growing tissues of the renal pelvis and/or of the ureteropelvic junction.Linvention concerne un dispositif conique résorbable autoportant (100) en textile (1), de préférence en PGA, destiné à être utilisé en tant quimplant pour la reconstitution tissulaire du bassinet rénal et/ou de la jonction pyélo-urétérale après sténose, néoplasme ou autre type de maladie qui obstrue lécoulement de lurine. Le dispositif (100) comprend une base convexe plus grande dotée dun orifice central et une base plus petite également pourvue dun orifice central, ledit dispositif conique (100) comportant en outre un ou plusieurs anneaux de renfort (2) ayant des diamètres différents, en matériau polymère thermoformé résorbable et fixés dun seul tenant audit textile (1). Le dispositif peut être façonné in situ pendant lintervention chirurgicale, pour adopter la forme de la zone excisée du bassinet rénal et/ou de la j
