Surgical aspirators, namely, surgical suction apparatus; appliances for inserting tubes, drains and other surgical devices into the body; tubes and drains for removing body fluids during and/or after diagnostic or operative procedures; plug for closing off the end of a wound drain when inserting the drain tube into the body; including during a laparoscopic operation procedure; appliances for interconnecting tubes and drains for removing body fluids during and/or after diagnostic or operative procedures with each other and with suction sources