公开(公告)号：US5743253A

公开(公告)日：1998-04-28

申请号：US588684

申请日：1996-01-19

申请人： Rolf Castor ,  Goran Cewers ,  Rolf Wernbro ,  Magnus Nord

发明人： Rolf Castor ,  Goran Cewers ,  Rolf Wernbro ,  Magnus Nord

IPC分类号： A61M16/00 ,  G05B23/02 ,  A61M15/00

CPC分类号： A61M16/00 ,  G05B17/02 ,  A61M2016/0039 ,  A61M2016/0042 ,  A61M2205/70 ,  A61M2230/46

摘要： A ventilator system has different sub-systems, such as a connection system, which influence the flow of breathing gas supplied to a patient's respiratory system. The flow pattern of the breathing gas is particularly influenced by the connection system. In order to compensate for this influence to the greatest possible extent in the generation of breathing gas, the connection system's transfer function is determined before the system is connected to the respiratory system. A gas flow with a specific gas flow pattern is generated with high accuracy in a ventilator unit. An ensuing gas flow pattern, only influenced by the connection system, is measured with high accuracy in a measurement unit in the ventilator unit. The transfer function for the connection system can be determined in a control unit from the known, generated gas flow pattern and the measured, ensuing gas flow pattern. The corresponding determination can be made for the respiratory system after a patient has been connected.

摘要翻译： 呼吸机系统具有不同的子系统，例如连接系统，其影响供应给患者呼吸系统的呼吸气体的流动。 呼吸气体的流动模式特别受连接系统的影响。 为了在产生呼吸气体中尽可能地补偿这种影响，在系统连接到呼吸系统之前确定连接系统的传递功能。 在呼吸机单元中以高精度产生具有特定气流模式的气流。 在呼吸机单元中的测量单元中，高精度地测量仅受连接系统影响的气流模式。 连接系统的传递函数可以在控制单元中根据已知的产生的气流模式和所测量的随之而来的气流模式来确定。 患者连接后可以对呼吸系统进行相应的确定。

公开(公告)号：US5915381A

公开(公告)日：1999-06-29

申请号：US759302

申请日：1996-12-02

申请人： Magnus Nord

发明人： Magnus Nord

IPC分类号： A61M16/00 ,  A61M16/08

CPC分类号： A61M16/0051 ,  A61M16/08 ,  A61M2016/0027 ,  A61M2016/0036 ,  A61M2016/0039 ,  A61M2230/46

摘要： In a method and apparatus for controlling breathing of a patient, momentary compliance is calculated during an inspiration. The calculated momentary compliance is then compared to a threshold value. If momentary compliance is less than the threshold value during a first interval, positive end expiratory pressure is reduced for subsequent breathing cycles so momentary compliance is greater than the threshold value during the first interval. If momentary compliance is less than the threshold value during a second interval, the ratio between inspiration time and expiration time, as well as the breathing rate, is changed so momentary compliance is greater than the threshold value during the second interval, at the same time as a pre-defined minute volume is generated.

摘要翻译： 在用于控制患者呼吸的方法和装置中，在吸气期间计算瞬时顺应性。 然后将计算出的瞬时顺从性与阈值进行比较。 如果在第一次间隔期间瞬时顺应性小于阈值，则随后的呼吸循环将减少正端呼气压力，因此在第一间隔期间瞬时顺应性大于阈值。 如果在第二个间隔期间瞬时顺应性小于阈值，则灵感时间与到期时间之间的比率以及呼吸速率被改变，所以在第二时间间隔内瞬时顺从性大于阈值，同时 因为产生预定义的分钟音量。