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Updated: Jun 18, 2026

Implantation and Control of Wireless, Battery-free Systems for Peripheral Nerve Interfacing

Implantation and Control of Wireless, Battery-free Systems for Peripheral Nerve Interfacing

Published on: October 20, 2021

Wireless ultrasound-powered biotelemetry for implants.

Bruce C Towe¹, Patrick J Larson, Daniel W Gulick

¹Bioengineering program of Arizona State University, Tempe, AZ 85202, USA. bruce.towe@asu.edu

Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference

|December 8, 2009

Summary

This study presents a simple wireless device for transmitting bioelectric signals. The miniature receiver uses ultrasound energy to detect and send biological electrical activity from inside the body to the surface for remote monitoring.

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Published on: November 21, 2011

Area of Science:

Biomedical Engineering
Implantable Devices
Bioelectronics

Background:

Wireless transmission of bioelectric signals is crucial for remote patient monitoring.
Existing methods may require complex or invasive components.
A simple, energy-efficient solution is needed for capturing and transmitting biopotentials.

Purpose of the Study:

To evaluate a miniature piezoelectric receiver coupled to a diode for wireless bioelectric event transmission.
To demonstrate a novel method for remotely detecting and demodulating biopotential waveforms.
To assess the sensitivity and feasibility of the proposed device.

Main Methods:

A miniature piezoelectric receiver and diode were integrated into a simple device.
The device converted surface-applied ultrasound energy into a high-frequency carrier current.
Bioelectrical currents modulated the carrier amplitude, which was remotely detected and demodulated.

Main Results:

The device successfully converted ultrasound energy to a carrier current.
Modulation of the carrier by bioelectrical currents was achieved.
Millivolt sensitivity was demonstrated in saline tank tests.

Conclusions:

A simple, implantable device for wireless bioelectric signal transmission is feasible.
The technique shows promise for remote monitoring of biological electrical activity.
Further system design optimization is expected to enhance device sensitivity.