US 2022/0087356 A1 · AIR FILTERING SURGICAL HELMET

Abstract

Disclosed is a protective helmet, surgical garment, and positive pressure air filter apparatus. The helmet is adapted to fit on the head of a medical practitioner and includes a filtered air inlet located near the crown of the practitioner's head, one or more air flow ducts, and one or more outlets located near the practitioner's face. The garment fits over the helmet and provides an air-impermeable barrier to prevent airborne contaminants from entering the space around the practitioner's head. A motorized filter unit is adapted to be worn near the waist of the practitioner. A tube connects the output of the filter unit with the air inlet of the helmet to provide a filtered air supply to the practitioner. One or more filter elements are provided at the input of the filter unit. The filter elements remove contaminants, including bacteria, viruses, vapors, and gasses from ambient air drawn into the filter unit to generate filtered air that is delivered to the practitioner.

Claims20

Dependent claims

A protective surgical helmet comprising:

a helmet frame adapted to fit on a head of a human;
a hood fitted over the frame, wherein an interior space of the hood encloses the head;
a duct connected with the frame and having an air inlet and an air outlet, wherein the air outlet is positioned to direct a flow of filtered air into the interior space;
an air conduit connected at a proximal end with the air inlet;
and
a filter unit connected with a distal end of the conduit and defining a fluid path for delivering the flow of filtered air from an ambient environment to the conduit, wherein the filter unit comprises:
one or more filter elements, the filter elements disposed along the fluid path;
and
an air pump connected with the filter elements and disposed along the fluid path, wherein the pump moves air from the ambient environment through the filter elements to generate the flow of filtered air.

6 more elements

Dependencies are inferred from the claim text.

Air filtering surgical helmet

Life of this patent

Air filtering surgical helmet

Life of this patent

Abstract

Claims20