Researchers have developed new surgical forceps that enhance precision while helping to reduce surgeon fatigue.
The developers suggest that the design addresses hand tremors and improves surgical accuracy.
Researchers from the Changchun Institute of Optics, Fine Mechanics, and Physics at the Chinese Academy of Sciences have developed surgical forceps with force-holding and force-control functions.
Their study, published in Sensors, highlights how they mitigate the impact of physiological hand tremors, ensuring greater accuracy during surgical procedures.
Involuntary hand movements can affect traditional surgical forceps, making it challenging for surgeons to maintain a steady grip.
This latest design counteracts this issue by incorporating a force-holding function, stabilising the clamping force to prevent unintended movement.
The improvement is crucial for delicate surgeries requiring consistent precision.
The forceps also address the nonlinear relationship between gripping force and applied pressure, ensuring surgeons can achieve better control over their instruments.
The team optimised the fundamental frequency of the forceps to reduce the risk of resonance with physiological tremors significantly.
Engineered with a flexible hinge design and leveraging the lever principle, the forceps allow for efficient displacement amplification and motion transfer.
The researchers conducted extensive simulations and experimental tests, demonstrating that they can maintain a stable clamping force within the safety threshold.
The forceps reduce the risk of excessive force application, which can cause tissue damage.
Integrating biomechanical insights with advanced engineering is a significant step forward in surgical technology. This makes them invaluable tools for various procedures, particularly microsurgery and minimally invasive techniques.
The authors concluded: ‘The designed surgical forceps have good clamping performance and can achieve high-precision clamping and unclamping operations, which verifies the effectiveness of the surgical forceps. The results of the related study can ensure the stability of the clamping force when surgeons use surgical forceps to clamp tissues, thus improving the clamping accuracy of the surgical forceps. This is important for improving the biomechanical compatibility of surgical instruments and the safety of surgical clinical practice.’
