Early detection of hemodynamic decompensation using taut-string transformation

US9974488B2 · kind B2 · utility

Assignee

• THE REGENTS OF THE UNIVERSITY OF MICHIGAN · US

Inventors

• Kayvan Najarian · Northville, US
• Ashwin Belle · Ann Arbor, US
• Kevin R. Ward · Ann Arbor, US
• Harm Derksen · Dexter, US

Key dates

• Filing date: Jun 26, 2015
• Grant date: May 22, 2018
• Expiry date: Jan 26, 2037

Classification

• Technology area (CPC G): Physics
• CPC primary: G16Z99/00
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

Techniques develop models for classification for physical conditions of a subject based on monitored physiologic signal data. The models for classification are determined from data transformed and feature extracted using a Taut-string transformation and in some instances using a further Stockwell-transformation, applied in parallel or in series. Physical conditions, specifying the state of hemodynamic stability and reflective of the cardiovascular and nervous systems, are thus modeled using these techniques.