Insufflating-exsufflating system

摘要

A system (10) and method of insufflating-exsufflating a subject (12) that enables monitoring and/or control over an enhanced set of breathing parameters during insufflation-exsuffiation. The system and/or method may include automatic triggering and/or notification to a caregiver of insufflation-exsuffiation. The insufflation-exsuffiation of the subject may be preceded by a secretion loosing routine that loosens secretions in the airway of the subject without moving the loosened secretions up the airway.

主权项

1. A system to extract secretions from the airway of a subject, the system comprising:
(a) a circuit to control the pressure at the airway of a subject by generating a flow of gas having a controlled pressure that is delivered to the airway of the subject by an airway interface that communicates the circuit with the airway of the subject; and (b) a processor to control the circuit such that the flows of gas generated by the circuit move secretions up the airway of the subject by: (1) use of a secretion loosening module for fluctuating the pressure in the airway of the subject up and down between positive and negative pressures for a plurality of loosening cycles such that the fluctuation of the pressure in the airway of the subject during the loosening cycles loosens secretions in the airway of the subject without moving the secretions up the airway of the subject, followed by (2) use of an inexsufflation module for fluctuating the pressure in the airway of the subject up and down for one or more insufflation-exsufflation cycles such that a given insufflation-exsufflation cycle insufflates and exsufflates the subject, thereby moving secretions up the airway of the subject.