Portable medical gas delivery system

An apparatus for dispensing medical grade gas, said apparatus comprising:

• a portable compressed gas unit including:
• a housing including a cylinder cartridge puncture valve adapted for attachment to a source of compressed gas,
• a solenoid communicably connected to the source of compressed gas, the solenoid including an inlet and an outlet,
• a pressure adjustable gas regulator separate and distinct from the solenoid and communicably interconnected between the source of compressed gas and the inlet of the solenoid for selectively adjusting the pressure of the gas provided from the source of compressed gas to the solenoid, the gas regulator including a regulator adjustment knob to provide a selected level of pressure,
• a pressure gauge connected between the gas regulator and the solenoid, and
• a pressure activated electric switch engaged to selectively open the solenoid;
• and
• a conduit communicably attached to the outlet of the solenoid for transmitting gas to a destination for storage or use in a medical application when the solenoid is opened by operation of the pressure activated electric switch.