Abstract: This fixture for securing a bar for funnel chest correction to a chest of a patient, includes: a base member having a length that allows the base member to extend across a plurality of ribs; a pressing member configured to be overlaid on the base member; a protrusion formed on an upper face of the base member; a plurality of screw holes formed in the base member; a plurality of holes formed in the pressing member at positions corresponding to the respective screw holes; and a plurality of screws. The pressing member is overlaid on the base member in a state where two bars are respectively disposed on both sides of the protrusion, and a screw is screwed into any of the screw holes on each of both sides of the protrusion, whereby the two bars are fixed by being sandwiched by the base member and the pressing member.