You easily give medication or draw blood via the head. Air locks and captive gloves (like a glove box) are also workable. If you were to be the patient, I thin

You easily give medication or draw blood via the head. Air locks and captive gloves (like a glove box) are also workable. If you were to be the patient, I think you would say iron lungs are "superior". The alternative is tubes jammed down your throat, which is horrible torture. I had a relative who literally chose death over the tubes. He would fight to rip them out, despite knowing that he needed them. Finally the hospital gave in, and now he's dead.