公开(公告)号：US5156147A

公开(公告)日：1992-10-20

申请号：US651318

申请日：1991-02-05

申请人： Jay A. Warren ,  Jay O. Millerhagen ,  Julio C. Spinelli

发明人： Jay A. Warren ,  Jay O. Millerhagen ,  Julio C. Spinelli

IPC分类号： A61N1/365

CPC分类号： A61N1/36585

摘要： A rate adaptive pacemaker of the type having a variable rate cardiac stimulating pulse generator and a sensor for monitoring some physiologic parameter whereby the pulse generator stimulating rate can be adjusted to meet physiologic demand is further provided with a hemodynamic sensor which is operative to provide an output signal representing the pumping performance of the heart in response to the pacing stimulation. The signal from the hemodynamic sensor is processed and then used in an algorithm to determine whether further rate increase should be permitted based upon whether the rate increase would be accompanied by a further increase in cardiac output, a plateau or a decrease in cardiac output. Hence, the adaptive rate pacemaker is provided with a real-time, hemodynamic maximum pacing rate instead of a preprogrammed, fixed, maximum rate.

公开(公告)号：US4930519A

公开(公告)日：1990-06-05

申请号：US774222

申请日：1985-09-09

申请人： Catherine A. Anderson ,  Jay O. Millerhagen

发明人： Catherine A. Anderson ,  Jay O. Millerhagen

IPC分类号： A61B5/0205

CPC分类号： A61B5/0205

摘要： A method of graphically displaying cardiopulmonary function data by providing a plurality of axes radially projecting from a common point of origin, there being one such axis for each cardiopulmonary parameter to be plotted, each axis having scale markings thereon whereby the normal value for each parameter will lie an equal distance from said point of origin, and straight line segments connected between said normal values on adjacent axes will form a generally regular polygon. The cardiopulmonary function data to be displayed are then plotted on the same appropriate axis and to the same scale such that deviations of any such data from normal will result in an irregular polygon when the segments are joined between plotted values on adjacent axis. Deviations of the irregular polygon from the regular polygon thus provides a clinician with a readily visible display of possible cardiopulmonary disfunction.

摘要翻译： 通过提供从公共原点径向突出的多个轴图形显示心肺功能数据的方法，每个心肺参数都有一个这样的轴被绘制，每个轴上都有刻度标记，每个参数的正常值将被 与所述原点相距相等，并且连接在相邻轴上的所述正常值之间的直线段将形成大致正多边形。 然后将要显示的心肺功能数据绘制在相同的适当轴线和相同的刻度上，使得当这些片段在相邻轴线上的绘制值之间连接时，任何此类数据与正常数据的偏差将导致不规则多边形。 因此，来自正多边形的不规则多边形的偏差为临床医生提供了可能的心肺功能障碍的可见显示。