Combined coaxial and bimanual irrigation / aspiration assembly (100) for use in a surgical procedure, comprising: an irrigation handpiece (102) including an irrigation needle (114) extending from a distal end (112) ) of the irrigation handpiece, the irrigation needle being configured to release an irrigation fluid from the assembly; an aspiration handpiece (104) that includes an aspiration needle (128) extending from a distal end (126) of the aspiration handpiece, the aspiration needle having an axis and being configured to aspirate a fluid inside the assembly, characterized in that the assembly (100) also comprises a sleeve element (106), the sleeve element (102) and the suction handpiece (104) being coupled together when the The assembly is in a first configuration, in which the sleeve element has an internal bore (142) and the distal ends (112,126) of the suction and irrigation handpieces are configured to extend inside the bore to engage the distal ends of the suction and irrigation handpieces to the sleeve element; wherein the assembly has a first configuration, in which the irrigation handpiece (102) and the aspiration handpiece (104) are coupled together so that the aspiration needle (128) extends along of a central axis of the sleeve element (106) in the first configuration inside the internal bore (142), the irrigation fluid being emitted from the irrigation needle (114) supplied through an annular space between the aspiration needle ( 128) and the sleeve element (106) along the distal end (140) of the sleeve element (106) and a second disassembled configuration that provides an irrigation handpiece (102) and an aspiration handpiece ( 104) physically separable and that can function independently, which act as a bimanual instrument.Conjunto (100) de irrigación/aspiración coaxial y bimanual combinado para su utilización en un procedimiento quirúrgico, que comprende: una pieza de mano de irrigación (102) que incluye una aguja de irrigación (114) que se extiend