公开(公告)号：US5471058A

公开(公告)日：1995-11-28

申请号：US9798

申请日：1993-01-27

申请人： Kazuo Nakagawa ,  Yuichi Iritani ,  Hiromi Yamazaki ,  Yasushi Takakuwa

发明人： Kazuo Nakagawa ,  Yuichi Iritani ,  Hiromi Yamazaki ,  Yasushi Takakuwa

IPC分类号： A61B5/145 ,  A61B5/083 ,  A61B5/097 ,  A61B10/00 ,  A61M16/01 ,  H01J49/38 ,  B01D59/44

CPC分类号： A61B5/7257 ,  A61B5/097 ,  H01J49/38

摘要： The invention provides an anesthesia monitor being able to directly make a separation and a determination in real time all components of a gas in which components having the same integer molecular weight exists, more particularly an expiration gas and an inspiration gas as the object of analysis. The monitor has a small size, a low price and a operational facility. A microscopic quantity of the expiration gas is introduced from a circular route of an anesthesia circuit for an inhalation anesthesia to the anesthesia monitor through a material pipe-line. A gas portion is transmitted by a rotary pump through valves and opening and closing valves to a measurement cell within a vacuum chamber arranged in a gap of between magnetic poles of permanent magnets in a Fourier transformation mass analyzer so that the expiration gas is subjected to a high speed sampling. An ionization of the ions is carried out within the measurement cell. A cyclotron resonance is caused thereby causing a high frequency voltage which is received by receiving electrodes of the cell. After a digiterzation of the signals, a computer executes a Fourier transformation mass analyzing process.

摘要翻译： 本发明提供了一种麻醉监视器，其能够直接进行分离和实时确定其中存在具有相同整数分子量的组分的气体的所有组分，更特别是作为分析对象的呼吸气体和吸气。 显示器具有体积小，价格低廉和操作设备。 通过材料管线从吸入麻醉麻醉回路的循环路线向麻醉监测器引入微量的呼气气体。 气体部分通过旋转泵通过阀和开关阀传递到在傅里叶变换质量分析仪中设置在永磁体的磁极间的间隙内的真空室内的测量单元，使得过期气体经受 高速采样 在测量单元内进行离子的离子化。 由此引起回旋加速器谐振，从而产生由电池的接收电极接收的高频电压。 在信号的数字化之后，计算机执行傅里叶变换质量分析处理。