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    • 14. 发明授权
    • LARYNGEAL MASK AIRWAY
    • 喉罩
    • EP1207928B1
    • 2005-09-07
    • EP00949807.2
    • 2000-08-07
    • Smiths Group plc
    • COLLINS, Michael Norman
    • A61M16/04
    • A61M16/04A61M16/0409A61M16/0445A61M16/0486A61M2210/0656
    • A laryngeal mask airway has a main tubular shaft (1) with a mask portion (5) attached at its patient end (3). The mask portion (5) comprises a mount (50) and a sealing cuff (60) attached to the mount. The interior of the mount (50) defines a large volume atrium (54) communicating with the bore of the shaft (1) at one end and with an opening (61) through the cuff (60) at its other end. The join between the shaft (1) and the mount (50) is located above the rear part (63) of the cuff (60). The height of the atrium (54) is between 2.5 and 3.5 the internal diameter of the shaft. The volume of the atrium (54) is such that the ratio of the internal diameter of the shaft cubed to the internal volume of the atrium is between 50 and 68.
    • 喉罩通气道具有主管轴(1),该主管轴(1)在其患者端(3)处附接有面罩部分(5)。 面罩部分(5)包括安装件(50)和附接到安装件的密封套(60)。 支座(50)的内部限定了一端与轴(1)的孔连通的大容积中庭(54),另一端具有穿过套(60)的开口(61)。 轴(1)和安装件(50)之间的接合位于套囊(60)的后部(63)上方。 心房(54)的高度在轴的内径的2.5至3.5之间。 心房(54)的体积使得立方体的内径与心房的内部体积之比在50和68之间。