The invention relates to a device (100) for the filtration of fat extracted during liposuction procedures, said device (100) comprising: i) a first reservoir (110) filled with a physiological solution adapted to be suctioned by a syringe (200) containing a certain amount of fat mixed with blood and anesthetic ii) a second reservoir (120), empty, intended to receive cyclically from said syringe (200) a liquid mixture consisting of the suctioned saline solution, blood and anesthetic separated from the fat iii) at least one filter element (130) provided with a connection member (131) for the connection of the syringe (200), said filter element (130) being connected to said first reservoir (110) and said second reservoir (120) through a three-way connector (140), A one-way valve (141) configured to allow passage of a flow of fluid from the first reservoir (110) towards the connector (140) is arranged on a branch of the connector (140) connected to the first reservoir (110), and a one-way valve (142) configured to allow passage of a flow of fluid from the connector (140) towards the second reservoir (120) is arranged on a branch of the connector (140) connected to the second reservoir (120). The invention also relates to a method for the filtration that can be performed with the filtration device.Linvention concerne un dispositif (100) pour la filtration de matière grasse extraite pendant des procédures de liposuccion, ledit dispositif (100) comprenant : i) un premier réservoir (110) rempli dune solution physiologique conçue pour être aspirée par une seringue (200) contenant une certaine quantité de matière grasse mélangée avec du sang et un anesthésiant ii) un second réservoir (120), vide, destiné à recevoir de manière cyclique depuis ladite seringue (200) un mélange liquide constitué de solution saline, de sang et dun anesthésiant aspirés séparés de la graisse iii) au moins un élément de filtre (130) comporte un élément de connexion (131) pour la connexion de la seri
