A group of American scientists at the University of Illinois, led by Andrew Singer, has shown in laboratory conditions that wireless signals can penetrate cuts of meat. The signal strength and speed of 35 Mbps were sufficient for watching Netflix videos.
A successful experiment convinced the scientists that there was a new opportunity to control the operation of medical devices implanted into the body. So far, their line is limited mainly to pacemakers and insulin pumps. But new implants are already on the "turn". Among them, for example, sensors for monitoring brain activity. The ability to control such devices remotely will eliminate the need to do this with the help of surgical intervention.
Most existing medical devices use radio frequencies of the order of 350 kHz for data transmission. However, the signal strength decreases due to its absorption by the tissues. Of course, the transmitted signal can be increased, but this will lead to heating of the device, which is very undesirable for the surrounding tissues.
Singer and his colleagues have moved beyond radio frequencies towards ultrasound, which powers medical scanning devices. Their attention was drawn to ultrasonic communication equipment used to transmit data under the ocean surface over long distances with minimal loss. Singer explains his choice by the similarity of the composition of seawater and liquid in the human body.
The scientists published the results of the research under the heading "meat-comms", in which they clearly prove the possibility of transmitting ultrasonic signals through tissues to control the operation of implanted medical devices.