发明授权
US08262581B2 Solid tissue impedance estimating method, cardiac output calculating method, pulmonary artery wedge pressure calculating method, cardiac output monitoring device, cardiac output monitoring system, pulmonary artery wedge pressure monitoring device, and pulmonary artery wedge pressure monitoring system
有权
固体组织阻抗估计方法，心输出量计算方法，肺动脉楔压计算方法，心输出量监测装置，心输出量监测系统，肺动脉楔压监测装置和肺动脉楔压监测系统
- 专利标题： Solid tissue impedance estimating method, cardiac output calculating method, pulmonary artery wedge pressure calculating method, cardiac output monitoring device, cardiac output monitoring system, pulmonary artery wedge pressure monitoring device, and pulmonary artery wedge pressure monitoring system
- 专利标题（中）： 固体组织阻抗估计方法，心输出量计算方法，肺动脉楔压计算方法，心输出量监测装置，心输出量监测系统，肺动脉楔压监测装置和肺动脉楔压监测系统
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申请号： US11950169申请日： 2007-12-04
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公开(公告)号： US08262581B2公开(公告)日： 2012-09-11
- 发明人: Kazunori Uemura , Masashi Inagaki , Masaru Sugimachi , Kazuo Shimizu , Masatoshi Kobayashi
- 申请人： Kazunori Uemura , Masashi Inagaki , Masaru Sugimachi , Kazuo Shimizu , Masatoshi Kobayashi
- 申请人地址： JP Osaka JP Tokyo
- 专利权人： National Cerebral and Cardiovascular Center,Olympus Corporation
- 当前专利权人： National Cerebral and Cardiovascular Center,Olympus Corporation
- 当前专利权人地址： JP Osaka JP Tokyo
- 代理机构： Scully, Scott, Murphy & Presser, P.C.
- 优先权： JP2006-333691 20061211
- 主分类号： A61B5/02
- IPC分类号： A61B5/02
摘要：
A practical method for estimating cardiac output and pulmonary artery wedge pressure with good accuracy is provided. A method is provided for estimating the impedance arising from solid tissue by determining the impedance at the intersection between the line of identity and the extrapolated regression line, where the regression line is obtained by linearly regressing the maximum value to the minimum value of the impedance signal of each of multiple data sets, where each data set contains the maximum value and the minimum value of the impedance signal during one cardiac cycle, where impedance signal is obtained between a can electrode implanted in the left thoracic wall and an electrode inserted into the coronary vein, over a specific period of time following the infusion of hypertonic saline into the pulmonary circulation.
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