Surgical Helmet Assembly Having An Adjustment Mechanism

A surgical helmet assembly for mounting to a head of a user during surgical operations, the surgical helmet assembly comprising:

• a frame assembly having a center of mass, the frame assembly comprising:
• a helmet shell having a first end and a second end, and
• a fan coupled to the helmet shell for circulating air;
• a headband assembly comprising:
• a front support member coupled to the helmet shell adjacent the first end of the helmet shell and the front support member comprising a base portion configured to abut a forehead of the user, and
• a rear support member coupled to the helmet shell adjacent the second end of the helmet shell and the rear support member configured to abut a rear region of the head of the user;
• and
• an adjustment assembly comprising:
• an actuation member rotatably coupled to one of the helmet shell and the rear support member, with the actuation member rotatable about an actuation axis, and
• a tension element having a first end operatively connected to the actuation member and a second end coupled to the front support member, and the tension element being movable relative to the helmet shell in response to rotation of the actuation member;
• wherein the front support member is moveable relative to the helmet shell to a first position, a second position, and intermediate positions therebetween in response to movement of the tension element from rotation of the actuation member, and wherein the center of mass of the frame assembly is at a first distance from the base portion of the front support member when the front support member is in the first position and the center of mass of the frame assembly is at a second distance from the base portion of the front support member when the front support member is in the second position, and wherein the first distance is greater than the second distance to accommodate a plurality of head sizes while retaining the center of mass of the frame assembly in close proximity to the head of the user when the front support member moves between the first position, the second position, and the intermediate positions.