TY - GEN
T1 - Signal and pattern generation for muscle manipulation in medical applications
AU - Habany, Hagit Perets
AU - Evzelman, Michael
AU - Peretz, Mor Mordechai
N1 - Publisher Copyright:
© 2019 IEEE.
PY - 2019/5/24
Y1 - 2019/5/24
N2 - A sinusoidal power generator targeted to relax muscles associated with airway channel, and to assist in human intubation, is designed and implemented. The relaxation of the muscles needs to be achieved through external stimulation of the nerves, i.e. excitation of the nerves through the skin. The device is built around two-stage power system that include a DC-DC pre-regulation stage and sinusoidal waveform generator - series-resonant parallel-loaded converter. The unique, non-linear load characteristics of the human skin present a challenge for the converter to maintain the output current regulated. This is required to monitor the amount of charge that is transferred to the subject. To address the challenges, the converter is operated above the resonant frequency to facilitate current sourcing, and a pre-regulation stage is used to control the amplitude of the sinusoidal excitation current independent of the frequency. Load characteristics, control algorithm, converter operation, design challenges and critical considerations are discussed and validated experimentally on the proof of concept laboratory prototype.
AB - A sinusoidal power generator targeted to relax muscles associated with airway channel, and to assist in human intubation, is designed and implemented. The relaxation of the muscles needs to be achieved through external stimulation of the nerves, i.e. excitation of the nerves through the skin. The device is built around two-stage power system that include a DC-DC pre-regulation stage and sinusoidal waveform generator - series-resonant parallel-loaded converter. The unique, non-linear load characteristics of the human skin present a challenge for the converter to maintain the output current regulated. This is required to monitor the amount of charge that is transferred to the subject. To address the challenges, the converter is operated above the resonant frequency to facilitate current sourcing, and a pre-regulation stage is used to control the amplitude of the sinusoidal excitation current independent of the frequency. Load characteristics, control algorithm, converter operation, design challenges and critical considerations are discussed and validated experimentally on the proof of concept laboratory prototype.
KW - Current Source
KW - HFAC
KW - Medical
KW - Resonant Converter
KW - Sinusoidal Generator
UR - http://www.scopus.com/inward/record.url?scp=85067113179&partnerID=8YFLogxK
U2 - 10.1109/APEC.2019.8722188
DO - 10.1109/APEC.2019.8722188
M3 - Conference contribution
AN - SCOPUS:85067113179
T3 - Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC
SP - 701
EP - 707
BT - 34th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2019
PB - Institute of Electrical and Electronics Engineers
T2 - 34th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2019
Y2 - 17 March 2019 through 21 March 2019
ER -