| 摘要 |
<p>Anaesthetic mask device for gaseous anaesthetics of the type comprising a cup- or hood-shaped part (3) including a connection piece (2) and provided with a border (4, 4', 4'') serving as a seal against the patient's face, and means for extraction of excess gas. The novelty is that there is provided at said border a slot-shaped suction opening (5, 5', 5'') into a space situated outside the wall of the anaesthetic mask (1, 1', 1'') and being connectible to a suction device, that said slot-shaped opening (5, 5', 5'') is so localized relative to the sealing border (4, 4', 4'') of the anaesthetic mask that the communication between the interior of the anaesthetic mask (1, 1', 1'') and the slot-shaped opening (5, 5', 5'') is cut off when the mask is applied to the patient's face, while the slot otherwise permits extraction of anaesthetic gas flowing out into the interior of the mask, and that a means (14, 14', 14'') deflecting the gas flow towards the wall of the anaesthetic mask is arranged therein to facilitate collection of gas freely flowing out through the mask.</p> |
