Abstract: A system using combined electrocardiography (EKG) and photoplethysmography (PPG) sensing to assess intra-arterial fluid volume is described. The system uses averaging of similar pulses based on prior (n?1; n minus 1) R-to-R pulse wave duration, and prior-prior (n?2; n minus 2) R-to-R pulse wave duration, to determine a patient's fluid status and whether it is below or above optimal intravascular hydration.
Type:
Grant
Filed:
October 30, 2023
Date of Patent:
March 18, 2025
Assignee:
HEMOCEPT INC.
Inventors:
Eric Raman, Kevin Peterson, Iain Hueton
Abstract: A system using combined electrocardiography (EKG) and photoplethysmography (PPG) sensing, to determine venous oxygen saturation is described. The system uses averaging of similar pulses based on Prior (or n?1) R-to-R pulse wave duration, and current (or n) R-to-R pulse wave duration for evaluation of the metabolic reserve and/or stress of the patient.
Type:
Grant
Filed:
April 13, 2021
Date of Patent:
September 3, 2024
Assignee:
HEMOCEPT INC.
Inventors:
Eric Raman, Kevin Peterson, Iain Hueton
Abstract: A system using combined electrocardiography (EKG) and photoplethysmography (PPG) sensing, to determine venous oxygen saturation is described. The system uses averaging of similar pulses based on Prior (or n?1) R-to-R pulse wave duration, and current (or n) R-to-R pulse wave duration for evaluation of the metabolic reserve and/or stress of the patient.
Type:
Grant
Filed:
April 13, 2021
Date of Patent:
February 13, 2024
Assignee:
HEMOCEPT INC.
Inventors:
Eric Raman, Kevin Peterson, Iain Hueton
Abstract: A system using combined electrocardiography (EKG) and photoplethysmography (PPG) sensing to assess intra-arterial fluid volume is described. The system uses averaging of similar pulses based on prior (n?1; n minus 1) R-to-R pulse wave duration, and prior-prior (n?2; n minus 2) R-to-R pulse wave duration, to determine a patient's fluid status and whether it is below or above optimal intravascular hydration.
Type:
Grant
Filed:
April 13, 2021
Date of Patent:
October 31, 2023
Assignee:
HEMOCEPT INC.
Inventors:
Eric Raman, Kevin Peterson, Iain Hueton