Search International and National Patent Collections

1. (WO2017156386) VENTRICULAR FILLING PHASE SLOPE AS AN INDICATOR OF HIGH PULMONARY CAPILLARY WEDGE PRESSURE AND/OR CARDIAC INDEX

Pub. No.:    WO/2017/156386    International Application No.:    PCT/US2017/021767
Publication Date: Fri Sep 15 01:59:59 CEST 2017 International Filing Date: Sat Mar 11 00:59:59 CET 2017
IPC: A61M 1/10
A61M 1/12
A61M 1/36
Applicants: THE UNIVERSITY OF CHICAGO
Inventors: URIEL, Nir
GRINSTEIN, Jonathan
Title: VENTRICULAR FILLING PHASE SLOPE AS AN INDICATOR OF HIGH PULMONARY CAPILLARY WEDGE PRESSURE AND/OR CARDIAC INDEX
Abstract:
A controller is provided to determine a ventricular filling phase slope as an indicator of high pulmonary capillary wedge pressure and/or cardiac index. Flow rate values describing a blood flow rate through a ventricular assist device are received. A ventricular filling phase segment is identified from a portion of the received flow rate values. A slope of the received flow rate values during the identified ventricular filling phase segment is determined. The determined slope is compared to a predetermined threshold value. When the determined slope exceeds the predetermined threshold value based on the comparison, a warning is triggered regarding an elevated pulmonary capillary wedge pressure or a low cardiac index value.