INJURED PARTY WAS SCOOPING THE RIGHT HAND RIB WITH THE 488 SCOOP AND AS HE WAS TRYING TO SCOOP THE RIB THE VENTILATION CURTAIN WAS GETTING CAUGHT UP ON THE CANOPY. INJURED PARTY REACHED OUT O F THE CANOPY TO MOVE THE CURTAIN AND AS HE DID HE GOT HIS LEFT INDEX FINGER CAUGHT BETWEEN THE RIB AND THE SCOOP CANOPY.