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1. (WO2009063224) AN ARTICLE OF HEADGEAR

Pub. No.:    WO/2009/063224    International Application No.:    PCT/GB2008/003853
Publication Date: May 22, 2009 International Filing Date: Nov 17, 2008
IPC: A61B 19/00
G02B 23/12
G02B 27/01
A61B 17/00
Applicants: BIRMINGHAM CITY UNIVERSITY
HARBIN, Daniel
Inventors: HARBIN, Daniel
Title: AN ARTICLE OF HEADGEAR
Abstract:
An article of headgear, particularly but not limited to surgeon's headgear, comprises a frame (12), a lighting arrangement (68) on the frame arranged to point generally towards a focal point in front of the frame. The headgear is arranged such that, when worn on the head of a user, the centre of gravity of the headgear (78) is arranged rearwardly relative to the nodding pivot point of the head of the user. The frame (12) has a front part and a rear part. The front part carries a piece of optical equipment (104) and the rear part carries a lighting arrangement (68) or power source. The weight of the lighting arrangement (68) or power source at least partially counterbalances the weight of the optical equipment (104) or vice versa. The article of headgear (78) comprises a band (12) for arranging around a part of a user's head, a frame (14) for carrying optical equipment (104) mounted to the band so as to extend, in use, around a user's eyes, part of the band extending, in use, over the crown of the user's head and the band bearing at least part of the weight of the frame. The band (12) has a front curved band part (16), two side band parts (18) extending from opposite ends of the front curved band part, the side band parts curving out of the plane defined by the front curved band part, and a rear band part (24) extending between the ends of the side band parts and spaced from the front curved band part. When the article of headgear is worn by a user, the side band parts (18) extend along the parietal bones of the skull to reduce substantially load applied to the sphenoid or temporal bones. Preferably, the frame is mounted on the band, the band supporting the frame in such a way that, in use, substantially no weight is applied to the nose of a user. The invention further envisages a method of fitting an article of surgical headgear to a user comprising the steps of: scanning the head of the user using a laser scanning arrangement, using data from the scan to determine a set of dimensions of the head of the user, using the set of dimensions to design die shape and size of the article of surgical headgear.