摘要:
A tracheal tube has a sealing cuff (10, 120, 400, 510) towards its patient end of a visco- elastic foam material covered by a layer (101, 101 ', 402, 502) of an impervious material. The cuff (10) may extend along its length in contact with the outside of the shaft (1, 1', 1") or the cuff (120) may have a wall of visco-elastic foam material defining a space (204) between the outside of the shaft (1 ') and the inside of the cuff when this is inflated.
摘要:
A novel two-layer endotracheal tube (ETT) cuff for the prevention of pneumonia is disclosed. The disclosed two-layer ETT comprises a standard HVLP cuff covered with a second layer of elastomeric material with a sterile gel inserted between the layers. The two-layer cuff forms no folds when inflated in the trachea and prevents leakage, substantially reducing the risk for pneumonia attributable to standard ETT cuffs.
摘要:
The mask 13 of a laryngeal mask assembly has a mount 20 and an integral cuff 21 at the patient end 14 of a tube 1. The mount 20 is of a thermoplastic material and the cuff 21 is made by blow moulding from the material of the mount. A separate retaining plate 30 seals an edge of the cuff 21 with the mount 20 and traps an inflation tube 34 extending from the cuff to the inflation line 2 of the tube 1.
摘要:
The disclosed method for fabricating low cost laryngeal mask devices includes providing a mold, the mold including interior walls that define a hollow interior volume. The interior volume includes a first portion and a second portion. A liquid plastic material is introduced into the mold, and then the mold is moved so as to coat the mold's interior walls. The liquid plastic material is then allowed to cure. The cured plastic material is then removed from the mold and the cured plastic material includes a generally elliptically shaped plate and a cuff. The cuff is formed from plastic material that coated the portion of the interior walls that defined the first portion. The plate defines a laryngeal side, a pharyngeal side, and a central aperture. An interior perimeter of the cuff is attached to the laryngeal side of the plate proximal to a perimeter of the central aperture. An outer perimeter of the cuff is attached to the laryngeal side of the plate proximal to an outer perimeter of the plate.
摘要:
A laryngeal mask airway device (400), comprising a mask portion (430) and an airway tube (410), the airway tube extending from a proximal end to a distal end, the distal end of the airway tube being fixed to the mask portion, the mask portion being insertable through the mouth of a patient to an inserted location within the patient, the mask portion forming a seal around the patient's glottic opening when the mask portion is in the inserted location, the proximal end of the airway tube being disposed outside of the patient when the mask portion is in the inserted location, the airway tube having a left side (410-1), a right side (410-r), an inner side (410-I), and an outer side (410-o), a distance between the left and right sides being greater than a distance between the inner and outer sides, the tube having a longitudinal fold extending along the left side and a longitudinal fold (425) extending along the right side, the longitudinal folds defining grooves that extend along the left and right sides of the exterior of the tube.
摘要:
A laryngeal mask airway device (400), comprising a mask portion (430) and an airway tube (410), the airway tube extending from a proximal end to a distal end, the distal end of the airway tube being fixed to the mask portion (430), the mask portion including a backplate (440) and being insertable through the mouth of a patient to an inserted location within the patient, the mask portion (430) forming a seal around the patient's glottic opening when the mask portion is in the inserted location, the proximal end of the airway tube being disposed outside the patient when the mask portion is in the inserted location, characterised in that the backplate (440) is provided by the airway tube (410).