| 摘要 |
The present invention concerns a method for nasal ventilation and relevant apparatus, particularly for flow-synchronized neonatal assisted ventilation, wherein F(t) is a signal proportional to the ventilation flow, comprising the following steps:
(a) inspiration, having a time length Ti, during which air is introduced at an inspiration pressure;
(b) expiration, having a time length Te, during which the introduction of air is interrupted;
(c) return to step (a);
characterised in that it comprises a flow threshold Ftr, and in that during said expiration step (b) the following steps are provided:
(b1) a waiting step having a time length ³ before the activation of the computation of the leakages; and
(b2) a step of computation of the leakages, having a time length ´, so that ³+´ =Te, wherein if a normalized signal F'(t), obtained by a processing by means of an algorithm of the surveyed signal F(t), exceeds the threshold Ftr, a spontaneous respiration activity is detected and the inspiration step (a) is reactivated. |
