a cartridge containing a biologically compatible compressed gas, said {HEAD ~ cartridge} being attachable to {TAIL ~ said pressure supply conduit} for communicating said pressurized gas from said cartridge to said pressure supply conduit 
attachable to
a cartridge containing a biologically compatible compressed gas , said { HEAD ~ cartridge } being attachable to { TAIL ~ said pressure supply conduit } for communicating said pressurized gas from said cartridge to said pressure supply conduit
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH