Airway treatment apparatus with bias line cancellation

Details Airway treatment apparatus with bias line cancellation Airway treatment apparatus with bias line cancellation

2005-06-28

2005-06-28

Yu, Justine R. (Department: 3764)

Surgery

Respiratory method or device

Means for supplying respiratory gas under positive pressure

C128S200240, C601S041000

Reexamination Certificate

active

06910479

ABSTRACT:
An airway clearance system and method produces high frequency chest wall oscillations (HFCWO) and increased airflow velocities through the air passages to clear the lungs of mucus. The system includes a chest wall force applicator to produce the HFCWO by applying an oscillating force component and a steady state (or bias line) force component. An air pressure input mouthpiece system that supplies airflow to a mouthpiece with a steady state, air component which tends to counteract or cancel the bias line force component.

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