公开(公告)号：US10561784B2

公开(公告)日：2020-02-18

申请号：US15609382

申请日：2017-05-31

Applicant: Fenwal, Inc.

Inventor： Steven R. Katz ,  Jeffrey Maher ,  Eric Linner ,  Ryan DeLacey ,  Robert Crampton ,  Richard L. West ,  Brian C. Case

IPC: A61M1/36

Abstract: A blood processing system includes a centrifuge and an optical monitoring system mounted at a stationary radial position with respect to the centrifuge. A flow circuit may be mounted within the centrifuge, with an umbilicus of the flow circuit extending outside of the centrifuge. A midsection of the umbilicus is orbited around a rotational axis of the centrifuge at a uniform first speed, which causes the centrifuge to rotate at a non-uniform second speed that is approximately double the first speed. The monitoring system is configured to view the flow circuit through a radial window of the centrifuge to determine a characteristic of the flow circuit. The yoke and/or umbilicus may occasionally move into position between the monitoring system and the window, so a controller of the monitoring system is configured to determine when unobstructed light reflected through the window by the centrifuge is received by the monitoring system.

公开(公告)号：US20140008277A1

公开(公告)日：2014-01-09

申请号：US14021355

申请日：2013-09-09

Applicant: Fenwal, Inc.

Inventor： John. T. Foley ,  Lan T. Nguyen ,  Jonathan Prendergast ,  Jeffrey Maher ,  Christopher Mikkelson

IPC: A61M1/36

CPC classification number: A61M1/367 ,  A61M1/3693 ,  A61M2202/0415 ,  A61M2205/331 ,  B04B2013/006

Abstract: Blood separation systems and methods are provided for controlling the interface between separated blood components. The system includes a blood separation chamber configured to separate blood into first and second blood components and an outlet line for removing at least a portion of the first blood component from the blood separation chamber. A primary optical sensor assembly is associated with the blood separation chamber to directly monitor the interior of the blood separation chamber. A secondary optical sensor assembly is associated with the outlet line to monitor the first blood component in the outlet line. The system also includes a controller programmed to select between the primary optical sensor assembly and the secondary optical sensor assembly for monitoring contamination of the first blood component. The system is particularly advantageous for preventing contamination of separated plasma which is lipemic or hemolytic.

Abstract translation: 提供血液分离系统和方法用于控制分离的血液成分之间的界面。 该系统包括：血液分离室，被配置为将血液分离成第一和第二血液成分;以及出血管线，用于从血液分离室除去至少一部分第一血液成分。 主要的光学传感器组件与血液分离室相关联，以直接监测血液分离室的内部。 第二光学传感器组件与出口管线相关联，以监测出口管线中的第一血液成分。 该系统还包括编程为在主光学传感器组件和次级光学传感器组件之间进行选择的控制器，用于监测第一血液成分的污染。 该系统特别有利于防止污染血浆或溶血性血浆的污染。

公开(公告)号：US20180344920A1

公开(公告)日：2018-12-06

申请号：US15609382

申请日：2017-05-31

Applicant: Fenwal, Inc.

Inventor： Steven R. Katz ,  Jeffrey Maher ,  Eric Linner ,  Ryan DeLacey ,  Robert Crampton ,  Richard L. West ,  Brian C. Case

IPC: A61M1/36

CPC classification number: A61M1/3693 ,  A61M1/3607 ,  A61M2205/12 ,  A61M2205/14 ,  A61M2205/3306

Abstract: A blood processing system includes a centrifuge and an optical monitoring system mounted at a stationary radial position with respect to the centrifuge. A flow circuit may be mounted within the centrifuge, with an umbilicus of the flow circuit extending outside of the centrifuge. A midsection of the umbilicus is orbited around a rotational axis of the centrifuge at a uniform first speed, which causes the centrifuge to rotate at a non-uniform second speed that is approximately double the first speed. The monitoring system is configured to view the flow circuit through a radial window of the centrifuge to determine a characteristic of the flow circuit. The yoke and/or umbilicus may occasionally move into position between the monitoring system and the window, so a controller of the monitoring system is configured to determine when unobstructed light reflected through the window by the centrifuge is received by the monitoring system.

公开(公告)号：US09314562B2

公开(公告)日：2016-04-19

申请号：US14021355

申请日：2013-09-09

Applicant: Fenwal, Inc.

Inventor： John T. Foley ,  Lan. T. Nguyen ,  Jonathan Prendergast ,  Jeffrey Maher ,  Christopher Mikkelson

IPC: A61M1/36 ,  B04B13/00

CPC classification number: A61M1/367 ,  A61M1/3693 ,  A61M2202/0415 ,  A61M2205/331 ,  B04B2013/006

Abstract: Blood separation systems and methods are provided for controlling the interface between separated blood components. The system includes a blood separation chamber configured to separate blood into first and second blood components and an outlet line for removing at least a portion of the first blood component from the blood separation chamber. A primary optical sensor assembly is associated with the blood separation chamber to directly monitor the interior of the blood separation chamber. A secondary optical sensor assembly is associated with the outlet line to monitor the first blood component in the outlet line. The system also includes a controller programmed to select between the primary optical sensor assembly and the secondary optical sensor assembly for monitoring contamination of the first blood component. The system is particularly advantageous for preventing contamination of separated plasma which is lipemic or hemolytic.