发明申请
US20100116274A1 METHOD, VENTILATOR AND CONTROL UNIT FOR DETERMINING A POSITION OF AN ESOPHAGEAL CATHETER
有权
方法，用于确定食道导管位置的通风器和控制单元
- 专利标题： METHOD, VENTILATOR AND CONTROL UNIT FOR DETERMINING A POSITION OF AN ESOPHAGEAL CATHETER
- 专利标题（中）： 方法，用于确定食道导管位置的通风器和控制单元
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申请号： US12615405申请日： 2009-11-10
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公开(公告)号： US20100116274A1公开(公告)日： 2010-05-13
- 发明人: Fredrik Jalde
- 申请人： Fredrik Jalde
- 优先权： SE0850076-1 20081113
- 主分类号： A61M16/00
- IPC分类号： A61M16/00 ; A61B5/05 ; A61B5/0402
摘要：
A method of obtaining an indication of the position of an esophageal catheter inserted into a patient includes the steps of obtaining an electrical signal from the esophageal catheter, determining an ECG component of the electrical signal, determining the widths and/or rate of a number of periods in which the ECG component exceeds a threshold value, using the rate or widths of the periods to determine the presence of a P-wave in the ECG component, and concluding that the catheter is in a good position for obtaining a correct EMG signal if a P-wave is determined to be present. If not, the position may be corrected. The method may be performed by a control unit in a ventilator or a monitoring device.
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