Search International and National Patent Collections

1. (WO2017019950) ABSOLUTE INTRATHORACIC IMPEDANCE BASED SCHEME TO STRATIFY PATIENTS FOR RISK OF A HEART FAILURE EVENT

Pub. No.:    WO/2017/019950    International Application No.:    PCT/US2016/044676
Publication Date: Fri Feb 03 00:59:59 CET 2017 International Filing Date: Sat Jul 30 01:59:59 CEST 2016
IPC: A61N 1/365
A61N 1/37
Applicants: MEDTRONIC, INC.
Inventors: SHARMA, Vinod
REDEMSKE, Jodi L.
Title: ABSOLUTE INTRATHORACIC IMPEDANCE BASED SCHEME TO STRATIFY PATIENTS FOR RISK OF A HEART FAILURE EVENT
Abstract:
A health care system acquires data determines whether a patient is at risk of hypervolemia or hypovolemia. The method comprises (a) acquiring from a device memory a patient's absolute intrathoracic impedance data over a pre-specified time period, (b) determining a running average of the intrathoracic impedance data over the pre-specified time period, and (c) determining by the system whether the running average of the intrathoracic impedance data over the pre-specified time period exceeds one of a first and second range, the first range being a higher value boundary of intrathoracic electrical impedance and the second range being a lower value boundary of intrathoracic electrical impedance.