Laryngeal mask having a supraglottic tube
AssigneeSingularity AG
InventorWerner F. Dubach
Life of this patent
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Abstract
Thus far, it has not been possible to produce laryngeal masks having a supraglottic tube as a one-piece unit. If the supraglottic tube (2) is provided with three lumens (4, 5, 6), the center one (6) of which has no passage to the respiration space (10), a solution is proposed. What is proposed is that the center guide lumen is provided with a longitudinal slit (8) extending from the distal end (9) to the laryngeal mask head (3). A connecting web can be attached between two cores or sliders forming the lumens, generating the desired stability in order to maintain the pressing power tool state without deformation.
Claims17
A laryngeal mask comprising a supraglottic tube configured for insertion of a laryngeal mask head over a larynx, wherein the supraglottic tube comprises:
- (a) a respiration lumen which serves to supply respiration air and for instrumentation, (b) an esophageal lumen, which serves to provide esophageal access, and (c) a guide lumen that runs medially in between the respiration lumen and the esophageal lumen and is closed at a proximal end,
- wherein
- the supraglottic tube and the laryngeal mask head are manufactured by injection molding in one piece, and wherein a connecting slot, which connects the guide lumen and at least one of the respiration lumen and the esophageal lumen, runs over at least a portion of the length of the supraglottic tube from a distal end and runs between the at least one of the respiration lumen and the esophageal lumen and the guide lumen.
Dependencies are inferred from the claim text.