公开(公告)号：US06423010B1

公开(公告)日：2002-07-23

申请号：US09678650

申请日：2000-10-04

申请人： Bruce Friedman ,  Lawrence T. Hersh ,  Christopher J. Dedyo

发明人： Bruce Friedman ,  Lawrence T. Hersh ,  Christopher J. Dedyo

IPC分类号： A61B502

CPC分类号： A61B5/02225 ,  A61B5/021 ,  A61B5/02416 ,  A61B5/0402

摘要： The present invention relates to an improved apparatus and method for measuring blood pressure. Both include a first sensor for detecting an instantaneous pulse rate, an inflatable cuff, and a second sensor to monitoring the pressure within the cuff. The cuff sensor adapted to detect oscillometric complexes associated with a patient's pulse. Both the apparatus and the method provide for detecting arrhythmia from the patient's instantaneous pulse rate. A characteristic of the oscillometric complexes is measured, and match determination means provided for determining whether at least two adjacent oscillometric complexes are equivalent. A first set matching criteria are used under normal conditions. A second set of matching criteria are used when arrhythmia are detected. A controller is provided for controlling the pressure within the cuff. At the outset of a blood pressure measurement the cuff is inflated to a pressure greater than the patient's systolic pressure. In response to a determination that two adjacent oscillometric complexes are equivalent the control means reduces the cuff pressure by a fixed increment and the match determination means continues to determine whether adjacent complexes are equivalent. A blood pressure determination means is provided responsive to the control means and the measuring means. The blood pressure determination means compares the measured characteristic of the oscillometric complexes from various cuff pressures and determines the cuff pressure at which the measured characteristic reaches a limit. This cuff pressure corresponds to the patient's mean arterial pressure.

摘要翻译： 本发明涉及一种用于测量血压的改进的装置和方法。 两者都包括用于检测瞬时脉率的第一传感器，可充气袖带和用于监测袖带内的压力的第二传感器。 袖带传感器适于检测与患者脉搏相关联的示波复合物。 该装置和方法都提供从患者的瞬时脉搏率中检测心律失常。 测量示波复合物的特性，并且提供用于确定至少两个相邻示波复合物是否相当的匹配确定装置。 在正常条件下使用第一组匹配标准。 当检测到心律失常时，使用第二组匹配标准。 提供控制器来控制袖带内的压力。 在血压测量开始时，将袖带充气至大于患者收缩压的压力。 响应于确定两个相邻示波复合体是等效的，控制装置将袖带压力减小固定的增量，并且匹配确定装置继续确定相邻复合体是否相等。 响应于控制装置和测量装置提供血压确定装置。 血压测定装置比较来自各种袖带压力的示波复合物的测量特性，并确定测量特征达到极限的袖带压力。 该袖带压力对应于患者的平均动脉压。