Patent ID: 7047973
Filing Date: 2006-05-23
Classification: A61M

Abstract:
1. A laryngeal mask airway adapted to be positioned over the larynx of a patient, and comprising: a dual-airway composed of a primary tube and a secondary tube combined with the primary tube, the secondary tube having a first end and a second end; a mask adapted to cover the larynx and divided into a curved bottom face adjacent to the primary tube and an inflatable bladder with a pointed end around the curved bottom face that is connected to the first end of the secondary tube, the mask having: an opening defined in the curved bottom face to communicate with the primary tube; at least one rib longitudinally formed on the curved bottom face near the opening and adapted to prevent the epiglottis from covering the opening so gases can be transmitted into and out of the patient; and a tongue extending inside the bladder at the pointed end to prevent the bladder from refolding; an inhalation indicator device connecting to the second end of the secondary tube; wherein the tongue has an easing hole defined in the tongue to reduce the rigidity of the tongue; and the mask further has a fusing portion formed between the bladder and the dual-airway and a through hole defined in the fusing portion to communicate the secondary rube to the bladder; and wherein the tongue further has a round distal end to lessen a patient's discomfort when in abutment with the mask.