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Implantation and Control of Wireless, Battery-free Systems for Peripheral Nerve Interfacing
Published on: October 20, 2021
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High-reliability microcontroller nerve stimulator for assistance in regional anaesthesia procedures.
Carlos A Ferri1, Antonio A F Quevedo1,2
1a Department of Biomedical Engineering, School of Electrical and Computer Engineering , University of Campinas , Campinas , SP , Brazil.
Journal of Medical Engineering & Technology
|April 28, 2017
Summary
This study developed a new nerve stimulator for regional anesthesia, improving nerve plexus location and anesthetic delivery. Field tests confirmed its reliability and enhanced procedure quality for anesthesiologists.
Area of Science:
- Biomedical Engineering
- Anesthesiology
- Medical Devices
Background:
- Nerve stimulators are crucial for precise regional anesthesia.
- Existing devices often lack recommended features, posing patient risks.
- A need exists for advanced nerve stimulators meeting all blockade requirements.
Purpose of the Study:
- To design and develop an embedded electronics-based nerve stimulator.
- To ensure the device meets all specifications for successful nerve blockade.
- To enhance patient safety and procedural efficacy in regional anesthesia.
Main Methods:
- Development of modular system for current pulse generation and control.
- Integration of patient and user interfaces.
- Testing of system linearity across various body impedances and field trials.
Main Results:
- The designed nerve stimulator meets required specifications for reliability.
- Satisfactory linearity ensures accurate current amplitude across impedances.
- Field tests demonstrated successful plexus blocking with higher quality and faster diffusion.
Conclusions:
- The developed nerve stimulator is a reliable and effective tool for regional anesthesia.
- The device improves the quality and efficiency of nerve blockade procedures.
- It offers a safer alternative to existing nerve stimulators with suboptimal features.

