| 摘要 |
A humidified medical gas supply apparatus to supply gas such as carbon dioxide for laparoscopic surgery includes a gas supply (1), a supply controller (3), and a gas supply tube (5, 12) which has a humidification chamber (10) mounted into it. The chamber has a dampened gas-pervious medium (23) and an electrical heating element (24). The electrical element (24) may extend along the gas supply tube (5, 12) and be wound around the medium (23) within the chamber. Control means (3) control an electrical supply to the electrical heating element to vary the electrical supply dependant upon a gas flow rate in the supply tube. |
