Overpressure hood

Overpressure hood:

The approach is a cost-effective, quickly reproducible, protective device that uses conventional, globally available materials. The concept is intended for medical personnel in risk areas where conventional protective equipment is not available.

It is still a prototype, further improvement suggestions are always welcome!

The presented overpressure hood requires only a few 3D-printed parts and can be manufactured from conventional PP/PE foil with a plastic sealing device. PP is more transparent but stiffer, PE easier to process and already available as tubes. Both materials can be disinfected with alcohol.

The function is relatively simple. Conventional clean compressed air is usually available in intensive care units. This is introduced into the neck cuff via a pressure reducer with a flow of approx. 12l/min. The fresh air reaches the interior of the hood via printed inlets. The spent air is discharged via an outlet valve on the upper side. Thus the we