TY - JOUR
AU - Abedini, Rezvan
AB - This paper introduces two ultrasonic surgical scalpels that varying in sizes. The scalpels have been designed and optimized using the finite element method. This method ensures that the resonance frequency in the longitudinal mode is set at 55.5 kHz, and the displacement amplitude is maximized without compromising the scalpel’s strength, allowing it to withstand incoming stresses. Consequently, the coagulation and dissection of the vessel are enhanced. The evaluation and comparison of surgical scalpels have been conducted using modal and harmonic analysis, as well as experimental impedance testing and vibration amplitude measurements. The smaller scalpel, equipped with a ring piezoelectric with an outer diameter of 16 mm, has a displacement amplitude approximately 9.2% greater than that of the larger diameter scalpel, which utilizes a ring piezoelectric with an outer diameter of 25 mm while maintaining identical horns. Furthermore, the mechanical quality factor is approximately 2.6 times higher in the smaller diameter scalpel. This discrepancy can be attributed to disruptive vibration modes in the larger diameter scalpel, as indicated by the impedance test conducted at a frequency of 55 kHz. The displacement amplitude obtained in the more efficient scalpel is 46.7 μm at a voltage of 70 volts, which is about 20% different from the results obtained from the harmonic simulation. The vessel coagulated with this scalpel can withstand a burst pressure of 280 mmHg.
TI - Design optimization and comparison of two hemostatic ultrasonic scalpels
JO - International Journal on Interactive Design and Manufacturing (IJIDeM)
DO - 10.1007/s12008-024-02084-7
DA - 2025-07-01
UR - https://www.deepdyve.com/lp/springer-journals/design-optimization-and-comparison-of-two-hemostatic-ultrasonic-G4VZrhf95X
SP - 4883
EP - 4894
VL - 19
IS - 7
DP - DeepDyve
ER -