公开(公告)号：WO1994022360A1

公开(公告)日：1994-10-13

申请号：PCT/US1994003025

申请日：1994-03-21

Applicant: NELLCOR INCORPORATED

Inventor： NELLCOR INCORPORATED ,  SWEDLOW, David, B. ,  POTRATZ, Robert, S.

IPC: A61B05/00

CPC classification number: A61B5/14551 ,  A61B5/1104 ,  A61B5/6826 ,  A61B5/7207 ,  A61B5/721 ,  A61B5/7239 ,  A61B5/746

Abstract: A pulse oximeter which modifies the alarm condition when motion is detected. Basically, if the lack of a pulse is determined to be as a result of motion artifact, the generation of an alarm is postponed. In addition, the display indicates that motion is present and that the last reading is questionable due to the presence of motion. The invention also determines if motion artifact is present from the pulse oximeter detector signal itself. The ratio of the positive and negative peaks of the derivative of the pulse signal are compared to a motion/blood pulse threshold.

Abstract translation: 检测到运动时修改报警状态的脉搏血氧计。 基本上，如果确定缺少脉冲是运动伪影的结果，则会产生报警。 此外，显示器指示运动存在，并且最后的读数由于运动的存在而是可疑的。 本发明还确定脉搏血氧计检测器信号本身是否存在运动假象。 将脉冲信号的导数的正峰值和负峰值的比率与运动/血液脉搏阈值进行比较。

公开(公告)号：EP0690694A1

公开(公告)日：1996-01-10

申请号：EP94912276.0

申请日：1994-03-21

Applicant: NELLCOR INCORPORATED

Inventor： SWEDLOW, David, B. ,  POTRATZ, Robert, S.

IPC: G01N21 ,  A61B5

CPC classification number: A61B5/14551 ,  A61B5/1104 ,  A61B5/6826 ,  A61B5/7207 ,  A61B5/721 ,  A61B5/7239 ,  A61B5/746

Abstract: A pulse oximeter which modifies the alarm condition when motion is detected. Basically, if the lack of a pulse is determined to be as a result of motion artifact, the generation of an alarm is postponed. In addition, the display indicates that motion is present and that the last reading is questionable due to the presence of motion. The invention also determines if motion artifact is present from the pulse oximeter detector signal itself. The ratio of the positive and negative peaks of the derivative of the pulse signal are compared to a motion/blood pulse threshold.