Abstract
The use of wireless implanted medical devices (IMDs), which communicate data wirelessly from sensors within the body to a receiver outside of the body, are gaining significant momentum in medical diagnosis and treatment procedures. Currently, radio frequency (RF) electromagnetic waves are the most frequently used communication method for wireless IMDs. However, there are various drawbacks of using RF electromagnetic waves in such applications such as high attenuation in the body and strictly regulated frequency spectrum, which consequently limit data rates of these devices. An alternative approach to RF transmission for IMDs uses ultrasonic waves, which experience lower attenuation in the body and have higher available bandwidth. In our work, we aim to demonstrate high data rate (>1.2 Mbps) through tissue communication using ultrasonic waves that will allow us to stream video with an IMD while actively controlling it inside the body. Initial experiments performed with 2mm biocompatible sonomicrometry transducers, where 2.4 Mbps data rate BER less than 5E-5 through water is achieved, demonstrating the capability of this method for high speed data transmission. Additional targets of this work include data transmission through beef liver and a live rabbit abdominal wall with high enough data rates capable of video streaming.The use of wireless implanted medical devices (IMDs), which communicate data wirelessly from sensors within the body to a receiver outside of the body, are gaining significant momentum in medical diagnosis and treatment procedures. Currently, radio frequency (RF) electromagnetic waves are the most frequently used communication method for wireless IMDs. However, there are various drawbacks of using RF electromagnetic waves in such applications such as high attenuation in the body and strictly regulated frequency spectrum, which consequently limit data rates of these devices. An alternative approach to RF transmission for IMDs uses ultrasonic waves, which experience lower attenuation in the body and have higher available bandwidth. In our work, we aim to demonstrate high data rate (>1.2 Mbps) through tissue communication using ultrasonic waves that will allow us to stream video with an IMD while actively controlling it inside the body. Initial experiments performed with 2mm biocompatible sonomicrometry tran...
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