公开(公告)号：US10226630B2

公开(公告)日：2019-03-12

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: A61B5/02 ,  A61N1/365 ,  A61B5/0215 ,  A61B5/024 ,  A61B5/00 ,  A61M5/142 ,  A61M5/172 ,  A61N1/39 ,  A61B5/042 ,  A61N1/372

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.