A protective helmet apparatus of
modular construction to be worn by anesthetized patients during
surgery . The helmet is assembled using one of a plurality of interchangeable helmet casings which is removably attached to one of a plurality of dismountable
chin supports. Removable ocular and
chin support cushions chosen from a set of interchangeable ocular and
chin support cushions are mountable to the interior face of the helmet casing and chin support. The removable cushions contact the allow for optimum
sizing of the apparatus to face of the patient providing padding and maximum
disbursement of weight and pressure of the head over a
wide area of the patient's face and head. The cushions and helmet casing and chin support are modular in design and dimension to be interchangeable with each other thus providing
accommodation for broad differences in facial structure and size of patients using them for
surgery. Mounts and passages are optionally provided for communicating tubes supplying the patient with
life support as well as wiring for sensors monitoring the patient. Additionally, a rotatable
handle may be mounted upon the apparatus for use during patient movement on or off of the
operating table.