公开(公告)号：US20170095665A1

公开(公告)日：2017-04-06

申请号：US15382853

申请日：2016-12-19

Applicant: Medtronic, Inc.

Inventor： Wade M. DEMMER ,  Troy E. JACKSON ,  Paul A. BELK

IPC: A61N1/362 ,  A61B5/042 ,  A61B5/0456 ,  G06F19/00 ,  A61N1/368 ,  A61N1/39 ,  A61M5/172 ,  A61M5/142 ,  A61B5/00 ,  A61N1/365

CPC classification number: A61N1/3621 ,  A61B5/0031 ,  A61B5/0422 ,  A61B5/0456 ,  A61B5/4836 ,  A61B5/7282 ,  A61M5/142 ,  A61M5/14276 ,  A61M5/1723 ,  A61M2005/14208 ,  A61M2230/04 ,  A61M2230/40 ,  A61N1/365 ,  A61N1/368 ,  A61N1/3684 ,  A61N1/3962 ,  G06F19/00 ,  G06F19/3456 ,  G06F19/3468 ,  G06F19/3481 ,  G16H20/17

Abstract: A medical device performs a method for computing an estimate of a physiological variable. The method includes sensing a physiological signal and measuring an event of the physiological signal. The device initializes a value of a long-term metric of the event measurement, wherein the long-term metric corresponds to a time interval correlated to a response time of the physiological variable to changes in the event. The estimate of the long-term metric is updated in a memory of the medical device using a previous long-term metric and a current measurement of the event. The device detects a need for computing the physiological variable and computes an estimate of the physiological variable using the updated long-term metric.