Invention Grant
- Patent Title: System and method of measuring venous oxygen saturation using intelligent pulse averaging with integrated EKG and PPG sensors
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Application No.: US17229759Application Date: 2021-04-13
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Publication No.: US11896405B2Publication Date: 2024-02-13
- Inventor: Eric Raman , Kevin Peterson , Iain Hueton
- Applicant: HEMOCEPT INC.
- Applicant Address: US WA Seattle
- Assignee: HEMOCEPT INC.
- Current Assignee: HEMOCEPT INC.
- Current Assignee Address: US WA Seattle
- Agency: MARSHALL, GERSTEIN & BORUN LLP
- Main IPC: A61B5/00
- IPC: A61B5/00 ; A61B5/0205 ; A61B5/349 ; A61B5/024 ; A61B5/145 ; A61B5/366 ; G16H40/63 ; A61B5/282 ; A61B5/1455 ; A61B5/0245
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.
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