How Does BCV Compare
|Does NOT require surgical procedure?||Trach||Mask||BCV|
|No known side effects?||Trach||Mask||BCV|
|Allows for eating and speaking easily?||Trach||Mask||BCV|
|Without risk of barotrauma?||Trach||Mask||BCV|
|Without risk of infection?||Trach||Mask||BCV|
|Active exhalation assistance?||Trach||Mask||BCV|
|Provides range of motion for respiratory muscles?||Trach||Mask||BCV|
Understanding Biphasic Cuirass Ventilation (BCV)
Breathing consists of two phases: Inspiration and Expiration. During the inspiration phase the diaphragm moves downwards, while the rib muscles pull the the ribs out expanding the chest. This expands the lungs and generates a lower pressure inside the chest cavity than outside.
This decreases the pressure below normal atmospheric pressure, causing air to rush in through the nose and mouth and into the lungs. This is termed negative pressure breathing. When we breathe out the muscles relax, the diaphragm moves up and in, and this pushes air out of the lungs.
Biphasic Cuirass Ventilation works in the same manner, sucking the diaphragm down and creating negative pressure in the chest – the Inspiratory Phase.
However, what makes BCV so special is that active phase that uses positive pressure to push air back out of the lungs – the Expiratory Phase.
For more information, visit the Hayek Medical BCV Page.
Download and print out our 1-page, printer-friendly, information sheet on BCV to bring to your doctor.Get a copy