Double cuffed endotracheal tube

Details Double cuffed endotracheal tube Double cuffed endotracheal tube

A - Human Necessities

61

F

128/127.1

A61F 7/00 (2006.01) A61M 16/04 (2006.01)

Patent

CA 1109750

DOUBLE CUFFED ENDOTRACHEAL TUBE ABSTRACT A double cuff for endotracheal tubes is designed with two inflatable balloons, shaped to fully occupy the spaces above and below the open larynx. The two cuffs have a common inflation channel and therefore after their inflation are in free communication with each other. The lower cuff with its thin non-elastic walls rests in the upper trachea, applying a pressure against the walls of the upper trachea and sub- glottic structures determined by the behavior of an upper cuff whose walls are elastic. This elastic cuff occupies the space immediately above the larynx and extends slightly into the pharynx. Elastic properties of the upper cuff confer, in effect, a pressure relief system to the lower non-elastic cuff as a result of their interconnection through the common inflation channel. A short segment of uncuffed tube between the cuffs allows correct anatomical placement of this segment at the level Or the larynx, insuring that the inelastic lower cuff rests below the larynx and the elastic upper cuff above the larynx. The proximity of the two cuffs results in an anchor effect around the glottic structures. Maintenance of a seal at low intra-cuff pressures in the trachea and larynx eliminates ciliary injury despite relatively high lung-inflating pressure because the latter is intermittently transmitted into the lower cuff which in turn is pressed against the subglottic structures to provide a satisfactory non-leaking seal for ven- tilation. Simultaneously the cuffs protect the larynx and trachea from aspiration of secretions from the upper airway into the lung and anchor the tube to prevent both bronchial intubation and inadvertent extubation.

295118

Affiliated with

Also associated with

Rating

Double cuffed endotracheal tube does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Double cuffed endotracheal tube, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Double cuffed endotracheal tube will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1129538