Tissue-sampling tool (1) made in the form of a tube presenting an inside face of circular section and an outside face of circular section, is claimed, where the tube has a blunt distal end and at least one sampling orifice (11) extending symmetrically relative to a transverse plane and to a longitudinal plane the orifice is peripherally bordered by two transverse borders (13) that are symmetrical relative to the transverse plane and that are connected to two longitudinal borders that are symmetrical relative to the longitudinal plane. Tissue-sampling tool (1) made in the form of a tube presenting an inside face of circular section and an outside face of circular section, is claimed, where the tube has a blunt distal end and at least one sampling orifice (11) extending symmetrically relative to a transverse plane and to a longitudinal plane the orifice is peripherally bordered by two transverse borders (13) that are symmetrical relative to the transverse plane and that are connected to two longitudinal borders that are symmetrical relative to the longitudinal plane each transverse border possesses a cutting edge situated at the intersection between the borders and the inside face each transverse border co-operates with the inside face to form a cutting angle lying in the range of 6-18[deg] and the longitudinal borders are arranged to have a cup-shape relative to the transverse borders, with a profile in the longitudinal plane that is different from the profile of the transverse borders.Linvention concerne un vecteur de prélèvement pour tissus réalisé sous la forme dun tube (2) présentant une face interne (7) de section circulaire et une face externe (8) de section circulaire, le tube comportant une extrémité distale (3) mousse et au moins un orifice de prélèvement (11) sétendant symétriquement par rapport à un plan transversal (T) et à un plan longitudinal (L), lorifice (11) étant bordé en périphérie par deux bords transversaux (13) symétriques par rapport au plan t
