A - Human Necessities – 61 – M
Patent
A - Human Necessities
61
M
A61M 16/00 (2006.01) A61B 5/087 (2006.01)
Patent
CA 2298553
The apparatus provides for the determination of the instantaneous phase in the respiratory cycle, subject's average respiration rate and the provision of ventilatory assistance. A microprocessor receives an airflow signal from a pressure transducer coupled to a port at a mask. The microprocessor controls a servo that in turn controls the fan motor and thus the pressure of air delivered by the blower. The blower is coupled to a subject's mask by a conduit. The invention seeks to address the following goals: while the subject is awake and making substantial efforts the delivered assistance should be closely matched in phase with the subject's efforts; the machine should automatically adjust the degree of assistance to maintain at least a specified minimum ventilation without relying on the integrity of the subject's chemoreflexes; and it should continue to work correctly in the presence of large leaks.
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
Resmed Limited
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