The invention relates to a support base (1″) for a suture thread having two opposite sides (12, 14) and comprising on one side (12) thereof a storage channel (2) for a suture thread in a wound position, and a holding zone (4) of one end of the suture thread, the holding zone (4) being surrounded by the storage channel (2), the support base (1) being characterized by having a through-opening (5) between the two sides (12, 14) thereof, the through-opening (5) extending into the holding zone (4) and continuing from the holding zone (4) in such a way as to intersect the storage channel (2), and a shutter (8) moving between an open position for uncovering the through-opening (5) between the two sides (12, 14) thereof, and a closed position for at least partially opening the through-opening (5), the moving shutter (8) being configured to project, in the open position thereof, from the side (14) of the base (1″) which is opposite to the side (12) on which the storage channel (2) is formed.