Method and system for physiological parameter derivation from pulsating signals with reduced error

US10172528B2 · kind B2 · utility

Assignee

• Tata Consultancy Services Limited · IN

Inventors

• Soma Bandyopadhyay · Sherghati, IN
• Arijit Ukil · Sherghati, IN
• Chetanya Puri · Sherghati, IN
• Rituraj Singh · Sherghati, IN
• Arpan Pal · Sherghati, IN
• C A Murthy · Sherghati, IN
• Kayapanda Mandana · Sherghati, IN

Key dates

• Filing date: Mar 23, 2017
• Grant date: Jan 8, 2019
• Expiry date: Jul 25, 2037

Classification

• Technology area (CPC G): Physics
• CPC primary: G16H50/30
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

This disclosure relates generally to biomedical signal processing, and more particularly to method and system for physiological parameter derivation from pulsating signals with reduced error. In this method, pulsating signals are extracted, spurious perturbations in the extracted pulsating signals are removed for smoothening, local minima points in the smoothened pulsating signal are derived, systolic maxima point between two derived local minima are derived, most probable pulse duration and most probable peak-to-peak distance are derived, dicrotic minima is removed while ensuring that every dicrotic minima is preceded by a systolic maxima point and followed by a beat start point of said systolic maxima, diastolic peak is derived while ensuring that every dicrotic maxima is preceded by a diastolic notch followed by next beat start point of that maxima, and physiological parameters are derived from the derived local minima points, systolic maxima points, dicrotic notch and diastolic peak.