SERVO LUNG SIMULATOR AND RELATED CONTROL METHOD

摘要

A computer-controlled servo lung simulator including a mechanical piston (1) which simulates the mechanical properties of the human lung, chest wall and diaphragm. The computer control implemented in the invention includes methods for controlling the servo lung simulator (9) to provide the simulation and control signals for the mechanical piston (1). The invention servo lung simulator (9) includes abilities such as (a) providing a one or two compartment lung simulation of pediatric and adult patients, (b) simulation of an active chest wall that can emulate triggering events as well as spontaneous breathing, (c) measurement of volume of flow to better than 1 % accuracy, (d) compliance and resistance elements can be chosen from an almost infinite spectrum of possibilities, (e) enables user to collect, display and store various data results like flow, volume, pressure, peak pressure, pause pressure, breath rate, (f) able to measure work of breathing, trigger response times and other indicators of the quality of spontaneous breathing support modes, (g) simulation of coughs, sighs, ventilatory dysynchrony, and other spontaneous diaphragm and chest wall components of respiration.