利索-全球专利检索

  1. 登录
  2. 注册
发明授权
CN101214151B 利用呼出气体CO2分压监测估算动脉血CO2分压的装置 失效 - 权利终止

利用呼出气体CO2分压监测估算动脉血CO2分压的装置
摘要：
本发明公开了一种利用呼出气体CO2分压监测估算动脉血CO2分压的装置，属于临床呼吸监测技术领域，其技术要点包括与计算机连接的二氧化碳分析监测仪；计算机有中心处理器、存储器和数据存储器，二氧化碳分析监测仪与计算机的数据存储器连接，数据存储器与计算机的中心处理器连接，利用二氧化碳分析监测仪对呼气流速、时间和二氧化碳分压PCO2进行实时采集，并输入计算机；通过对输入的数据进行处理，最终估算出相应的动脉血CO2分压。本发明可用于临床无创监测COPD患者，特别是重度COPD患者的PaCO2。
摘要（英）：

The invention discloses a method and a device using the expired gas partial pressure of CO2 to monitor and estimate the CO2 partial pressure of arterial blood, belonging to the clinical respiratory monitoring technology field. The technical points includes using a CO2 analyzing and monitoring instrument for the real-time acquisition on the expiratory flow, the time and CO2 partial pressure PaCO2 to be input into a computer; processing input data; when the instant flow is 22.25 plus or minus 0.08 percent or the instant slope of the flow speed/time curve is 0.13 plus or minus 0.19, (a) and the difference of the corresponding CO2 partial pressures is within about 5 percent, the average value of the corresponding CO2 partial pressure is basically the same with the arterial blood CO2 partial pressure; (b) the corresponding CO2 partial pressure difference is over about 5 percent, the mathematical model fitting is implemented on the CO2 partial pressure/time curve to estimate the corresponding arterial blood CO2 partial pressure. The invention can be applied to clinical wound-free monitoring COPD patients, especially the PaCO2 of severe COPD patients.

公开/授权文献
0/0