Breathing-driven flexible respiratory sensor and preparation method thereof

US11730392B2 · kind B2 · utility

Assignee

• University of Electronic Science and Technology of China · CN

Inventors

• Yadong Jiang · Sichuan, CN
• Huiling Tai · Chengdu, CN
• Bohao Liu · Sichuan, CN
• Si Wang · San Diego, US
• Zhen Yuan · Suizhou City, CN
• Qi Huang · Nanhu, CN
• Guangzhong Xie · Sichuan, CN

Key dates

• Filing date: Aug 13, 2019
• Grant date: Aug 22, 2023
• Expiry date: Jun 22, 2042

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61M2016/0021
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A breathing-driven flexible respiratory sensor includes: a test cavity and a digital electrometer, wherein an upper internal wall of the test cavity is provided with an upper detecting component, and a lower internal wall of the test cavity is provided with a lower detecting component; the upper detecting component and the lower detecting component is arranged in a longitudinal symmetry form; wherein the upper detecting component comprises a substrate, an electrode and a gas sensitive film bonded in sequence from top to bottom, and the substrate is bonded to the upper internal wall of the test cavity; wherein a rubber airbag is disposed in the test cavity, and a friction film is bonded to the rubber airbag; an air inlet cylinder is connected to a left end of the rubber airbag, and an air outlet cylinder is connected to a right end of the rubber airbag.