公开(公告)号：US20160220825A1

公开(公告)日：2016-08-04

申请号：US15005533

申请日：2016-01-25

Applicant: Medtronic, Inc.

Inventor： Saul E. Greenhut ,  Robert T. Taepke ,  David R. Bloem ,  Yong K. Cho ,  Donna M. Salmi

IPC: A61N1/365 ,  A61N1/39 ,  A61M5/172 ,  A61B5/0215 ,  A61B5/00

CPC classification number: A61N1/36564 ,  A61B5/0031 ,  A61B5/0215 ,  A61B5/024 ,  A61B5/0422 ,  A61B5/6847 ,  A61B5/686 ,  A61B5/6869 ,  A61B5/6876 ,  A61B5/7239 ,  A61M5/14276 ,  A61M5/1723 ,  A61M2205/054 ,  A61M2210/125 ,  A61N1/37247 ,  A61N1/3962 ,  A61N1/3987

Abstract: Various techniques for measuring cardiac cycle length and pressure metrics based on pulmonary artery pressures are described. One example method described includes identifying a point within a derivative signal of a cardiovascular pressure signal without reference to electrical activity of a heart, initiating a time window from the identified point in the derivative signal, identifying a point within the cardiovascular signal within the time window, and determining at least one of a systolic pressure or diastolic pressure based on the identified point.

Abstract translation: 描述了基于肺动脉压力测量心脏周期长度和压力指标的各种技术。 所描述的一个示例性方法包括识别心血管压力信号的导数信号内的点，而不参考心脏的电活动，从导数信号中的识别点开始时间窗口，识别时间窗内的心血管信号内的点 并且基于所识别的点来确定收缩压或舒张压中的至少一个。