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1. 发明申请

US20090165798A1 METHOD FOR IMPROVING CONTROL AND DETECTION PRECISION OF TIDAL VOLUME BY A CALCULATION INTRODUCED WITH R VALUE 有权
标题翻译：通过计算引入R值来提高控制和检测TIDAL VOLUME精度的方法
公开(公告)号：US20090165798A1
公开(公告)日：2009-07-02
申请号：US12326056
申请日：2008-12-01
申请人： Yumeng CONG , Fei CHANG , Wei WANG
发明人： Yumeng CONG , Fei CHANG , Wei WANG
IPC分类号： A61M16/00 , A61B5/091
CPC分类号： A61B5/091 , A61M16/024 , A61M16/0866 , A61M2016/0027 , A61M2016/0039 , A61M2016/0042
摘要： The present invention discloses a method for improving control and detection precision of tidal volume by introducing R value, comprising the steps of: a plateau pressure Pplate is used to calculate a system compliance C with C=ΔV/(Pplate−PEEP); VT, the tidal volume obtained currently at patient terminal, is calculated with VT=ΔV×(C−Ctube)/C, wherein ΔV is the variation of tidal volume, PEEP is the positive end expiratory pressure and Ctube is the compliance C of the line. Depending on the calculated VT, the tidal volume which is actually obtained by the patients during this period, the processing unit calculates the tidal volume VT′, which the airway is intended to reach during the next expiration period, by VT′=VT+ΔVT×K wherein K is a scaling factor for control and adjustment, VT is the tidal volume obtained by the patient during the current period, VTset is the presetted tidal volume, ΔVT=VTset−VT. And the processing unit accordingly controls the opening position of the inspiratory valve during the next inspiration period, so as to achieve the purpose of improving control and detection of precision tidal volume.
摘要翻译：本发明公开了一种通过引入R值来提高潮气量的控制和检测精度的方法，包括以下步骤：使用平台压力Pplate计算C = DeltaV /（Pplate-PEEP）的系统依从性C; VT，目前在患者终点获得的潮气量，用VT = DeltaVx（C-Ctube）/ C计算，其中DeltaV是潮气量的变化，PEEP是呼气末正压，Ctube是线的顺应性。根据计算出的VT，在此期间实际获得的潮气量，处理单元计算气道预期在下一个期满期间达到的潮气量VT'，VT'= VT + DeltaVTxK 其中K是用于控制和调整的比例因子，VT是患者在当前时期获得的潮气量，VTset是预设潮气量，DeltaVT = VTset-VT。因此，处理单元相应地在下一个吸气期间控制吸气阀的打开位置，以达到改善精确潮气量的控制和检测的目的。

2. 发明申请

US20090165797A1 AIRWAY SYSTEM, OPERATING MEHTOD THEREOF AND VENTILATOR OR ANESTHETIC MACHINE HAVING SUCH SYSTEM 审中-公开
标题翻译：航空系统，操作员及其具有这种系统的通风机或麻醉机
公开(公告)号：US20090165797A1
公开(公告)日：2009-07-02
申请号：US12326012
申请日：2008-12-01
申请人： Yumeng CONG , Wei WANG , Hongyu Zhang
发明人： Yumeng CONG , Wei WANG , Hongyu Zhang
IPC分类号： A61M16/00
CPC分类号： A61M16/022 , A61M2016/0027 , A61M2205/3358
摘要： The present invention discloses an airway system and operating method thereof in the medical equipments such as a ventilator and an anesthetic machine. The airway system comprises: a respiratory circuit (2) comprising an inspiratory branch (21) and an expiratory branch (22); a control unit (1) connected to the respiratory circuit (2) for controlling the opening and closing of the inspiratory and expiratory branches; an airway pressure sensor (7) located in the respiratory circuit (2) for measuring the airway pressure, wherein an ambient pressure sensor (5) is also located in the respiratory circuit (2), and wherein in the normal operating mode, the ambient pressure sensor (5) is used to measure the ambient pressure, while when failures occur in the airway pressure sensor (7) it is used to roughly measure the airway pressure. The airway system and operating method thereof according to the present invention guarantee the stable and continuous operation of the respiratory system when the airway pressure sensor can not measure the airway pressure because of failures so that the safety of the patient is ensured.
摘要翻译：本发明公开了一种呼吸机和麻醉机等医疗设备中的气道系统及其操作方法。气道系统包括：包括吸气分支（21）和呼气分支（22）的呼吸回路（2）; 连接到呼吸回路（2）的控制单元（1），用于控制吸气和呼气分支的打开和关闭; 位于呼吸回路（2）中用于测量气道压力的气道压力传感器（7），其中环境压力传感器（5）也位于呼吸回路（2）中，并且其中在正常操作模式中，环境压力传感器（5）用于测量环境压力，而当气道压力传感器（7）发生故障时，它用于大致测量气道压力。根据本发明的气道系统及其操作方法保证气道压力传感器由于故障而不能测量气道压力时呼吸系统的稳定和连续的操作，从而确保患者的安全。

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