Design and implementation of a high-precision, constant-current electrical muscle stimulator with integrated safety features

Hussein, Mohammed Barzan

Innovative Multidisciplinary Journal of Applied Technology · 2025-yil

Annotatsiya

This study presents the development and experimental validation of a high-precision constant-current Electrical Muscle Stimulator (EMS) with integrated safety mechanisms for transcutaneous neurostimulation. To address the main drawback of traditional voltage-source designs—output current variation resulting from changes in skin-electrode impedance—an updated Howland pump configuration is used as a precision voltage-controlled current source (VCCS). The circuit incorporates precisely matched 100Ω resistors and a TLO72 operational amplifier, ensuring output current stability within ±5% for load impedances typical of human tissue (500Ω–2 kΩ). An NE555 timer configured as an astable multivibrator generates adjustable biphasic pulses with a frequency range of 1–6.35 Hz, encompassing the therapeutic bands commonly employed in rehabilitation and pain relief. A key aspect of the design is the incorporation of robust patient safety features—often absent from research-grade stimulators—such as galvanic isolation via a medical-grade output transformer and a series 10µF DC-blocking capacitor. Collectively, these provisions guarantee compliance with the IEC 60601-1 standard for medical electrical equipment. Tests demonstrate reliable delivery of a stable balanced biphasic output current across a range of load conditions. The prototype thus confirms that clinical performance in terms of accuracy and safety can be achieved with inexpensive components, offering a reliable and versatile platform for neuromuscular exploration and future electrotherapeutic applications.

Maqola ma’lumotlari
MualliflarHussein, Mohammed Barzan
JurnalInnovative Multidisciplinary Journal of Applied Technology
NashriyotТДТУ Қўқон филиали
ISSN2995-486X, 2995-486x
Nashr sanasi2025-10-26
Jild3
Son10
Betlar79-91
TilIngliz
Ilmiy sohaTexnika
DOI10.51699/5q1gxg67
Indeksga qo‘shilgan2026-08-26

DOI: 10.51699/5q1gxg67 · Maqolaning asl sahifasi

Kalit so‘zlar

Electrical Muscle Stimulator, Constant-Current Control, Rehabilitation Device, Neuromuscular Stimulation, Muscle Activation

Ilmiy soha

Texnika

Iqtibos keltirish

APAHussein, Mohammed Barzan (2025). DESIGN AND IMPLEMENTATION OF A HIGH-PRECISION, CONSTANT-CURRENT ELECTRICAL MUSCLE STIMULATOR WITH INTEGRATED SAFETY FEATURES. Innovative Multidisciplinary Journal of Applied Technology, 3(10), 79-91. https://doi.org/10.51699/5q1gxg67
GOST (OAK)Hussein, Mohammed Barzan DESIGN AND IMPLEMENTATION OF A HIGH-PRECISION, CONSTANT-CURRENT ELECTRICAL MUSCLE STIMULATOR WITH INTEGRATED SAFETY FEATURES // Innovative Multidisciplinary Journal of Applied Technology. – 2025. – T. 3, № 10. – P. 79-91. – DOI: 10.51699/5q1gxg67.
MLAHussein, Mohammed Barzan. “DESIGN AND IMPLEMENTATION OF A HIGH-PRECISION, CONSTANT-CURRENT ELECTRICAL MUSCLE STIMULATOR WITH INTEGRATED SAFETY FEATURES.” Innovative Multidisciplinary Journal of Applied Technology, 3(10), 79-91, 2025. https://doi.org/10.51699/5q1gxg67
ChicagoHussein, Mohammed Barzan. “DESIGN AND IMPLEMENTATION OF A HIGH-PRECISION, CONSTANT-CURRENT ELECTRICAL MUSCLE STIMULATOR WITH INTEGRATED SAFETY FEATURES.” Innovative Multidisciplinary Journal of Applied Technology, 3(10), 79-91 (2025). https://doi.org/10.51699/5q1gxg67
HarvardHussein, Mohammed Barzan (2025) ‘DESIGN AND IMPLEMENTATION OF A HIGH-PRECISION, CONSTANT-CURRENT ELECTRICAL MUSCLE STIMULATOR WITH INTEGRATED SAFETY FEATURES’, Innovative Multidisciplinary Journal of Applied Technology, 3(10), 79-91. https://doi.org/10.51699/5q1gxg67
BibTeX
@article{husseinmohammedbarzan2025,
  title = {DESIGN AND IMPLEMENTATION OF A HIGH-PRECISION, CONSTANT-CURRENT ELECTRICAL MUSCLE STIMULATOR WITH INTEGRATED SAFETY FEATURES},
  author = {Hussein, Mohammed Barzan},
  journal = {Innovative Multidisciplinary Journal of Applied Technology},
  year = {2025},
  volume = {3},
  number = {10},
  pages = {79-91},
  doi = {10.51699/5q1gxg67},
  url = {https://doi.org/10.51699/5q1gxg67}
}

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