The present invention in several embodiments is a device comprising a retractable scalpel blade within the barrel of a plastic suction catheter, which can be attached to a wall suction canister found in most exam rooms. The device would facilitate the procedure of abscess drainage by allowing one to incise the abscess with the scalpel blade when it is extended out from the end of the barrel of the suction catheter, then retract the blade into the barrel tip after the appropriate incision is made. Then the blunt tip of the catheter can be used to suction out the abscess contents, as well as break up the loculations within the abscess cavity, and also subsequently suction out saline if it is used for irrigation of the cavity.