초록 ▼

This invention relates to a portable heating and humidifying device which is effective in giving emergency therapy for accidental hypothermia. The device includes a charcoal fuel element heater (2;31) which is integrated-with a moisturized element (1;32), so that heated air from the heater (2;31) is

This invention relates to a portable heating and humidifying device which is effective in giving emergency therapy for accidental hypothermia. The device includes a charcoal fuel element heater (2;31) which is integrated-with a moisturized element (1;32), so that heated air from the heater (2;31) is humidified by being passed through the moisturized element (1;32). The moisturized element contains a body (11;38) of water absorbent material, such as fibre wadding or foamed polymer. The body (11;38) of water absorbent material is contained within a heat conducting first housing (10;41), so as to leave a first airspace (13;41) between substantial parts of the outer surface of the body (11;38) and the inner surface of the first housing (10;41). The first housing (10;42) is arranged within a heat insulating second housing (15;50) defining a second airspace (16;45) through which dry warm air is transported to the face of person breathing the humidified air.

대표청구항 ▼

Portable device for adding heat and humidity to oxygen-enriched breathing air, said device comprising a breathing mask, a source of oxygen enriched air, a moisturized element in the form of a coaxial arrangement of a body of water absorbent material, a heat exchanging device surrounding said body of

Portable device for adding heat and humidity to oxygen-enriched breathing air, said device comprising a breathing mask, a source of oxygen enriched air, a moisturized element in the form of a coaxial arrangement of a body of water absorbent material, a heat exchanging device surrounding said body of water absorbent material, a first coaxial airspace defined by said body of water absorbent material and an inner wall of said heat exchanging device, said first coaxial airspace having a first inlet in communication with said source and a first outlet in communication with the breathing mask, means for coupling said first outlet to the breathing mask, a heater integrated with the heat exchanging device such that the oxygen enriched air is heated and humidified as it passes through the coaxial airspace, a one-way valve between the heater and the first coaxial passage, arranged such that heated air may flow from the heater into the first coaxial passage but not from the first coaxial passage to the heater, and a heat insulating housing surrounding an outer wall of the heat exchanging device and having an inner wall which cooperates with said outer wall to define a second coaxial airspace, said second coaxial airspace having an inlet directly coupled to the outlet of the heater for admitting heated air from the heater and a second outlet adjacent to said first outlet for expelling warm, dry air in the direction of the face of a person breathing the humidified air from the first outlet after it has passed through the second coaxial airspace and heated the oxygen enriched air in the first coaxial airspace.