A 3-Mbps, 802.11g-Based EMG Recording System With Fully Implantable 5-Electrode EMGxbrk Acquisition Device
July 14, 2020
Publication
- A 3-Mbps, 802.11g-Based EMG Recording System With Fully Implantable 5-Electrode EMGxbrk Acquisition Device
- July 14, 2020
We have developed a 5-electrode recording system
that combines an implantable electromyography (EMG) device
package with transcutaneous inductive power transmission, nearinfrared
(NIR) transcutaneous data telemetry and 3 Mbps Wi-Fi
data acquisition for chronic EMG recording in vivo. This system
comprises a hermetically-sealed single-chip, 5-electrode Implantable
EMG Acquisition Device (IEAD), a custom external
powering and Implant Telemetry Module (ITM), and a custom
Wi-Fi-based Raspberry Pi-based Data Acquisition (RaspDAQ) and
relay device. The external unit (ITM and RaspDAQ) is powered
entirely by a single battery to achieve the objective of untethered
EMG recording, for the convenience of clinicians and animal
researchers. The IEAD acquires intramuscular EMG signals at
17.85 ksps/electrode while being powered transcutaneously by the
ITM using 22 MHz near-field inductive coupling. The acquired
EMG data is transmitted transcutaneously via NIR telemetry to
the ITM, which in turn, transfers the data to the RaspDAQ for
relaying to a laptop computer for display and storage. We have
also validated the complete system by acquiring EMG signals from
rodents for up to two months. Following the explantation of the
devices, we have also conducted failure and histological analysis on
the devices and the surrounding tissue, respectively.
Researcher/Author: Kian Ann Ng , Astrid Rusly, Gil Gerald Lasam Gammad, Nguyen Le, Shih-Chiang Liu, Khay-Wai Leong, Miaolin Zhang, John S. Ho, Jerald Yoo, and Shih-Cheng Yen
IEEE TRANSACTIONS ON BIOMEDICAL CIRCUITS AND SYSTEMS, VOL. 14, NO. 4, AUGUST 2020; https://ieeexplore.ieee.org/document/9140303
Researcher/Author: Kian Ann Ng , Astrid Rusly, Gil Gerald Lasam Gammad, Nguyen Le, Shih-Chiang Liu, Khay-Wai Leong, Miaolin Zhang, John S. Ho, Jerald Yoo, and Shih-Cheng Yen
IEEE TRANSACTIONS ON BIOMEDICAL CIRCUITS AND SYSTEMS, VOL. 14, NO. 4, AUGUST 2020; https://ieeexplore.ieee.org/document/9140303