Lung ventillation measurements using ultrasound

US9211110B2 · kind B2 · utility

Assignee

• THE REGENTS OF THE UNIVERSITY OF MICHIGAN · US

Inventors

• Jonathan M. Rubin · Ann Arbor, US
• James D. Hamilton · Ann Arbor, US
• J. Brian Fowlkes · Ann Arbor, US
• Oliver D. Kripfgans · Ann Arbor, US

Key dates

• Filing date: Mar 17, 2014
• Grant date: Dec 15, 2015
• Expiry date: Jun 20, 2034

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B8/5253
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

An ultrasound-based system determines dynamic strain measurements over a surface using ultrasound speckle analysis that allows for accurate measurement of surface area displacement. The system additionally determines an approximate displacement along a third axis, the z-axis. From these, an estimation of a local volume change is determined. In this way, a volume change can be determined for the lung or any other region of interest.