Acoustic transponders for wireless pressure monitoring using flexible acoustic resonators

US11918319B2 · kind B2 · utility

Assignee

• Cornell University · IT

Inventors

• Seyedhamidreza Alaie · New York, US
• Amir Ali Amiri Moghadam · Marietta, US
• Subhi Al'Aref · New York, US
• James K. Min · Denver, US
• Bobak Mosadegh · New York, US
• Simon Dunham · New York, US

Key dates

• Filing date: Feb 1, 2019
• Grant date: Mar 5, 2024
• Expiry date: Jun 11, 2041

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B2562/0247
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

Systems and method to measure pressure are described herein. The system can include a force sensor can that be implanted into a patient to measure, for example, cardiac pressure. The force sensor can include first and second film layers that can define a plurality of pressure cells. An external pressure can deform the pressure cells and change their resonant frequency. When exposed to an acoustic signal, the pressure cells can resonant at a pressure-dependent resonant frequency. The system can detect reflected acoustic waves generated by the resonance of the pressure cells. The system can convert the frequency readings into pressure values.