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Development and application of ultrasonic surgical instruments
1Department of Mechanical and Automation Engineering, Chinese University of Hong Kong, Hong Kong. dsun@se.chuk.edu.hk
IEEE Transactions on Bio-Medical Engineering
|June 1, 1997
Summary
A novel magnetostrictive ultrasonic surgical instrument (USI) was developed, offering enhanced capabilities for bleeding control and bone cutting. This advanced USI demonstrates superior performance compared to traditional surgical equipment in clinical trials.
Area of Science:
- Biomedical Engineering
- Surgical Technology
- Materials Science
Background:
- Ultrasonic surgical instruments (USI) are valuable medical tools.
- Magnetostrictive methods enable efficient ultrasonic signal conversion.
- Existing USI have limitations in comprehensive surgical applications.
Purpose of the Study:
- To introduce a new design for ultrasonic surgical instruments (USI).
- To utilize magnetostrictive principles for enhanced ultrasonic to mechanical vibration conversion.
- To develop a USI with advanced functionalities for diverse surgical procedures.
Main Methods:
- Designing an ultrasonic generator to produce high-current ultrasonic signals.
- Implementing a transducer for converting electrical signals into mechanical vibrations.
- Utilizing waveguide instruments for vibration propagation and amplification.
Main Results:
- The developed USI effectively stops bleeding and cuts bone tissue.
- The instrument features automatic frequency regulation and temperature control.
- Animal experiments and human clinical operations confirmed USI advantages over conventional equipment.
Conclusions:
- The new magnetostrictive USI design offers significant advantages.
- This advanced USI provides comprehensive surgical capabilities.
- The developed instrument shows superior performance in clinical settings.