Bottle cap assembly, namely, caps for covering two and three liter drink bottles whose tops have been removed

PROTECTIVE MEDICAL APPARATUS COMPRISING A SHIELD WITH AN APERTURE, A HAND CONTROLLABLE PORTION EXTENDING REARWARDLY FROM THE SHIELD, AND AN INTERNAL MEMBER FOR SELECTIVELY ENGAGING A NEEDLE SHEATH INSERTED INTO THE APERTURE, SAID APPARATUS FOR UNSHEATHING AND FOR HANDLING NEEDLES AND SYRINGES