Electromagnetic wave sensor for determining a hydration status of a body tissue in vivo

US11039769B2 · kind B2 · utility

Assignee

• Infineon Technologies AG · DE

Inventors

• Gustavo Adolfo Guarin · Nuremberg, DE
• Maximilian HOFMANN · Nuremberg, DE
• Dietmar Kissinger · Erlangen, DE
• Herbert Roedig · Riemerling, DE
• Tanja Seiderer · Unterhaching, DE

Key dates

• Filing date: Nov 4, 2016
• Grant date: Jun 22, 2021
• Expiry date: Jul 18, 2037

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B2560/0214
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

An electromagnetic wave sensor for determining a hydration status of a body tissue in vivo includes an electromagnetic wave transmitter, a waveguide, and an electromagnetic wave receiver. The electromagnetic wave transmitter is configured to emit an electromagnetic wave signal in a frequency range between 1 Hz and 1 THz. The waveguide is coupled to the electromagnetic wave transmitter. The waveguide is adapted to be arranged next to the body tissue such that a fringe field of the electromagnetic wave signal guided by the waveguide penetrates the body tissue. The electromagnetic wave receiver is coupled to the waveguide. The electromagnetic wave receiver is configured to receive the electromagnetic wave signal modified by the body tissue in dependence of a hydration status of the body tissue.