A device for
processing a portion of a carcass (1) of slaughtered poultry on a
processing line, the portion of the carcass (1) being supported on a carrier that is movable on the
processing line and comprising wing joints (8),
coracoid bone (7), a wobble (9) incorporated with two legs (9', 9") joining together at an
acute angle at a wobble head (11), a
keel bone (6), at least one membrane and / or
ligament connecting at least the wobble (9), and naturally present meat including inner and outer fillets, the device comprising a tool (12, 15, 16) for
cutting the membrane and removing the wobble (9) from the portion of the carcass (1), the tool (12, 15, 16) comprising a primary blade (12) and two secondary blades (15,16) arranged on opposite sides of the bottom blade (12) to disconnect the thimble (9) from at least one membrane and / or
ligament while retaining the meat naturally present in the carcass portion (1), and the tool (12, 15, 16) further comprises a
tertiary blade positioned or positionable adjacent to the two secondary blades (15, 16) on one side of the blades opposite the side where the primary blade (12) is positioned or positionable to define a cage for
trapping the thimble (9) in the cage delimited by the primary blade (12), the two secondary blades (15, 16) and the
tertiary blade (22).