05517986 is referenced by 249 patents and cites 26 patents.

An adjustable headgear for use with reusable or disposable nasal and/or oral gas delivery masks. The headgear includes a cap-like headpiece adapted to fit the crown and back of a patient's head. Lower strap means provide a two-point connection with the gas delivery mask to achieve a comfortable fit and an effective seal. Depending strap means depending from the head piece are connected to and moveable relative to the lower strap means. The depending strap means offer a stabilizing connection between the head piece and the lower strap means. Upper strap means can be used in the event an effective seal cannot be achieved using only the lower strap means. The upper and lower strap means provide a four-point connection with the gas delivery mask.

Title
Two-point/four-point adjustable headgear for gas delivery mask
Application Number
8/128984
Publication Number
5517986
Application Date
September 28, 1993
Publication Date
May 21, 1996
Inventor
Mary T Walthour
Pitcairn
PA, US
Eric W Starr
Pittsburgh
PA, US
Agent
Reed Smith Shaw & McClay
Assignee
Respironics
PA, US
IPC
A62B 18/02
A62B 17/04
A62B 18/08
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