Patent ID: 11957438
Assignee: CALIFORNIA INSTITUTE OF TECHNOLOGY
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 22:
23. An apparatus configured to approximate left ventricular end diastolic pressure (LVEDP) using data from non-invasive ECG and pressure sensors, comprising: at least one processor coupled to a memory, to a non-invasive hemodynamic waveform pressure sensor, and to a non-invasive electrocardiogram (ECG) sensor, wherein the memory holds program instructions that when executed by the at least one processor cause the apparatus to:
receive hemodynamic waveform data from the non-invasive hemodynamic waveform pressure sensor and ECG data from the non-invasive ECG sensor;
determine a time difference indicative of a delay between the hemodynamic waveform data and the ECG data; and
calculate an LVEDP based on time features and waveform features of the hemodynamic waveform data and the ECG data and the time difference, the time difference being used to determine synchronized portions in time of the hemodynamic waveform data and the ECG data.