A wound treatment arrangement for the debriding and cleansing of a patients body portion comprising: a flexible elongated body portion enclosure bag an elongated nozzle arrangement securable to the inner surface of the elongated enclosure bag a pressurized fluid treatment supply gun and a connectable and releasable coupler member arranged on the proximal end of the nozzle arrangement so as to sealably receive a corresponding coupler arrangement on the fluid treatment supply gun.
