Medical humidifier

Details Medical humidifier Medical humidifier

1997-12-16

2000-01-04

Bushey, C. Scott

Gas and liquid contact apparatus

With external supply or removal of heat

Heat producer

96371, 12820327, 12820413, 12820512, 261 96, 261105, B01F 304

Patent

active

060101180

ABSTRACT:
A humidified medical gas supply apparatus to supply gas such as carbon dioxide for laparoscopic surgery includes a gas supply, a supply controller, and a gas supply tube which has a humidification chamber mounted into it. The chamber has a dampened gas-pervious medium and an electrical heating element. The electrical element may extend along the gas supply tube and be wound around the medium within the chamber. A control controls an electrical supply to the electrical heating element to vary the electrical supply dependent upon a gas flow rate in the supply tube.

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patent: 4825863 (1989-05-01), Dittmar et al.
patent: 5255674 (1993-10-01), Oftedal et al.
patent: 5392770 (1995-02-01), Clawson et al.

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