Laryngeal mask airway
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United States of America Patent
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Mar 16, 2004
Grant Date -
Oct 16, 2003
app pub date -
Apr 12, 2002
filing date -
Mar 11, 2002
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A laryngeal mask tube consists of a dual-airway tube (10), a mask (20) with an inflatable bladder (24) and an inflation indicator device (30). The dual-airway tube (10) comprises a simplified primary tube (12) and secondary tube (14) integrally combined together. The primary tube (12) communicates with the mask (20) to guide gas into the body of a patient and the secondary tube (14) communicates between with the bladder (24) and the inflation indicator device (30) to monitor and inflate the bladder (24). Moreover, two ribs (26) are formed in the mask to prevent blockage of the primary tube (12) and a tongue (242) is formed inside the bladder (24) to prevent the bladder (24) from folding and preventing a seal around the larynx. Whereby, the laryngeal mask airway is convenient and efficient to use.
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