Flow sensor for ventilation

US11433211B2 · kind B2 · utility

Assignee

• ZOLL Medical Corporation · US

Inventors

• Lisa Campana · Waltham, US
• Paolo Giacometti · Nashua, US
• Gideon Butler · Portsmouth, US
• Frederick J. Geheb · Danvers, US
• Annemarie Silver · Bedford, US
• Gary A. Freeman · Newton, US
• Frederick Faller · Burlington, US
• Michael J. Riley · Spring, US

Key dates

• Filing date: Mar 17, 2017
• Grant date: Sep 6, 2022
• Expiry date: Nov 2, 2038

Classification

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

Abstract

A flow sensor system for ventilation treatment comprises a flow conduit configured to allow gas flow between a first region and a second region, the flow conduit defining a lumen for the gas flow; a flow restrictor disposed within the lumen of the flow conduit between the first region and the second region; a first absolute pressure sensor disposed adjacent to the first region of the flow conduit and configured to measure a pressure of the gas flow at the first region of the flow conduit; and a second absolute pressure sensor disposed adjacent to the second region of the flow conduit and configured to measure pressure of the gas flow at the second region of the flow conduit.