| 摘要 |
The present invention relates to a tracheostomy device with an inflatable balloon (1) attached to a hollow tube (2) by means of two areas of adhesion (1a and 1b) whose ortogonal projections are not contiguous or, in other words, are at an angle (alpha) other than 180�. This balloon (1) communicates with the environment by means of a capped, valved flexible conduit (4). A movable flange (3) allows for extra fixation of the device around a patient's neck. A displaceable inner tube (5) can be removed in case of severe acute obstruction, allowing for immediate establishment of air flow. The design and distribution of the components of this tracheostomy device contribute to increased safety and comfort of tracheostomies by: enhancing the its anchorability, hence better stabilizing it within the trachea; improving its placement within the airway; increasing the volume, hence lowering the pressure inside its balloon (1); enhancing the balloon's (1) volume-to-pressure curve; completely sealing the trachea from the tracheostomy wound, larynx and pharynx; shortening the tube (2) size and providing a movable neck flange (3). |
