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公开(公告)号：EP2169380B1
公开(公告)日：2017-08-16
申请号：EP09252176.4
申请日：2009-09-14
申请人： Terumo BCT, Inc.
发明人： Sweat, William
CPC分类号： G01N15/042 , G01N15/05 , G01N2015/0073 , G01N2015/045
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公开(公告)号：EP2169380A3
公开(公告)日：2014-08-06
申请号：EP09252176.4
申请日：2009-09-14
申请人： Terumo BCT, Inc.
发明人： Sweat, William
CPC分类号： G01N15/042 , G01N15/05 , G01N2015/0073 , G01N2015/045
摘要： A density centrifuge blood processing system comprising a separation chamber rotating about a central rotation axis, the separation chamber being coupled to an elutriation chamber, a first detector for the separation chamber to detect light from an observation region, a computational apparatus distinguishing at least two regions in the observation region and distinguishing incipient spill over of cellular components out of the elutriation chamber as a function of light intensity received from the at least two regions in the separation chamber, and a controller regulating speed of at least one pump or of the separation chamber in response to signals from the computational apparatus to avoid spill over.
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公开(公告)号：EP2166338B1
公开(公告)日：2018-09-05
申请号：EP09252175.6
申请日：2009-09-14
申请人： Terumo BCT, Inc.
发明人： Sweat, William
CPC分类号： G01N15/042 , G01N15/05 , G01N2015/045
摘要： A density centrifuge blood processing system with automatic two-dimensional optical control of fluid separation by observing fluid characteristics in observation regions. The location of the regions is determined by monitoring an optical reference. Points representing edges of an optical reference are measured and lines are computed through the points. An error measurement is calculated for each line. If the error is too large, the image is abandoned. One of the lines is selected as a referent line. A new line is calculated orthogonal to the referent line. The error function is again computed for the dependant line. If the error exceeds a selected maximum, the frame is discarded. A transformation function translates data points from an (r, s) domain derived from measurements of the edges into an (x, y) domain used to identify pixels in the observation areas.
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公开(公告)号：EP2166338A3
公开(公告)日：2014-08-06
申请号：EP09252175.6
申请日：2009-09-14
申请人： Terumo BCT, Inc.
发明人： Sweat, William
CPC分类号： G01N15/042 , G01N15/05 , G01N2015/045
摘要： A density centrifuge blood processing system with automatic two-dimensional optical control of fluid separation by observing fluid characteristics in observation regions. The location of the regions is determined by monitoring an optical reference. Points representing edges of an optical reference are measured and lines are computed through the points. An error measurement is calculated for each line. If the error is too large, the image is abandoned. One of the lines is selected as a referent line. A new line is calculated orthogonal to the referent line. The error function is again computed for the dependant line. If the error exceeds a selected maximum, the frame is discarded. A transformation function translates data points from an (r, s) domain derived from measurements of the edges into an (x, y) domain used to identify pixels in the observation areas.
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