Mask assembly

Details Mask assembly Mask assembly

A - Human Necessities

62

B

137/1.52

A62B 7/00 (2006.01) A62B 18/00 (2006.01)

Patent

CA 1235040

ABSTRACT A mask assembly (10) adapted for use with a portable ventilator resuscitator (30) and which is adapted to be either placed directly over a patient's face or to be connected to a gas mask (18) worn by the patient, the gas mask having an inlet and an exhalation valve (26). The mask assembly includes an oral nasal mask (12) which can be placed over the patient's nose and mouth, holding means (16) including head harness (58) and adjustable straps (60) which are capable of holding the mask (12) over a patient's face, and tubing means (14) having one end (28) connected to the portable ventilator/resuscitator ( 30) and the other end provided with a connector tube which, when the mask is in an inverted shape, can be snap fit into an annular opening in the end wall (22) of a filter (20) of the gas mask (18). The mask assembly (10) is further provided with pressure compensating means (38) capable of blocking the exhalation valve (26) of the gas mask.

449811

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