US 12,440,114 B2
Cardiac cycle-based diagnostic systems and methods
Johan Svanerudh, Uppsala (SE)
Assigned to ST. JUDE MEDICAL COORDINATION CENTER BVBA, Zaventem (BE)
Filed by ST. JUDE MEDICAL COORDINATION CENTER BVBA, Zaventem (BE)
Filed on Dec. 18, 2023, as Appl. No. 18/544,168.
Application 18/544,168 is a continuation of application No. 17/733,010, filed on Apr. 29, 2022, granted, now 11,883,138.
Application 17/733,010 is a continuation of application No. 14/837,291, filed on Aug. 27, 2015, granted, now 11,350,832, issued on Jun. 7, 2022.
Claims priority of provisional application 62/042,448, filed on Aug. 27, 2014.
Prior Publication US 2024/0115148 A1, Apr. 11, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. A61B 5/0215 (2006.01); A61B 5/00 (2006.01); A61B 5/026 (2006.01); A61B 5/02 (2006.01); A61B 6/50 (2024.01); A61B 8/04 (2006.01); A61B 90/00 (2016.01)
CPC A61B 5/02154 (2013.01) [A61B 5/0035 (2013.01); A61B 5/0066 (2013.01); A61B 5/0084 (2013.01); A61B 5/0215 (2013.01); A61B 5/026 (2013.01); A61B 5/7203 (2013.01); A61B 5/7278 (2013.01); A61B 5/742 (2013.01); A61B 5/02007 (2013.01); A61B 6/504 (2013.01); A61B 8/04 (2013.01); A61B 2090/3782 (2016.02); A61B 2576/00 (2013.01)] 14 Claims
OG exemplary drawing
 
1. An intravascular data analysis system to assess a blood vessel comprising:
an interface system configured to receive intravascular pressure data including a plurality of distal pressure (Pd) values measured by an intravascular data collection probe and a plurality of proximal pressure (Pa) values;
a display system;
one or more memory storage devices comprising instructions; and
a processor in communication with the interface system, the display system, and the one or more memory storage devices, wherein the processor is configured to execute the instructions to:
determine a plurality of Pd/Pa ratios based on the plurality of distal pressure (Pd) values and the plurality of proximal pressure (Pa) values,
filter the plurality of Pd/Pa ratios using a filter having a time constant TC in a range of 1% to 50% of a heart cycle length, and
control the display system to generate a plot based on the plurality of Pd/Pa ratios.