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SECTION 1

The Emerson CoughAssist™ Mechanical In-Exsufflator (MI-E) assists patients in

clearing retained bronchopulmonary secretions by gradually applying a positive

pressure to the airway, then rapidly shifting to a negative pressure. This rapid

shift in pressure, via a facemask, mouthpiece or an endotracheal or tracheostomy

tube, produces a high expiratory flow rate from the lungs, simulating a cough, a

technique referred to as "mechanical insufflation-exsufflation." The automatic

CoughAssist MI-E (CA-3000, CA-3200) has timing mechanisms to automate the

inspiratory and expiratory cycles as well as a manual control. The manual

CoughAssist MI-E (CM-3000, CM-3200) uses a manually operated valve to shift

from positive to negative pressure and back.

Those who might benefit from the use of the CoughAssist MI-E include any patient

with an ineffective cough due to muscular dystrophy, myasthenia gravis, poliomyelitis,

or other neurologic disorder with some paralysis of the respiratory muscles, such

as spinal cord injury. It may also be used to treat ineffective cough due to other

bronchopulmonary diseases, such as emphysema, cystic fibrosis and bronchiectasis.

It is effective for both trached and non-invasively ventilated patients.

Indications for Use: Any patient unable to cough or clear secretions effectively

due to reduced peak cough expiratory flow (less than 2 to 3 liters per second),

resulting from high spinal cord injuries, neuro-muscular deficits or severe

fatigue associated with intrinsic lung disease, is a candidate for this device.

Contraindications: Any patient with a history of bullous emphysema,

known susceptibility to pneumothorax or pnuemo-mediastinum, or known to

have had any recent barotrauma, should be carefully considered before use.

N T R O D U C T I O N