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S&M2505 Research Paper of Special Issue https://doi.org/10.18494/SAM.2021.3207 Published: March 5, 2021 Research and Development of Testing Device for Evaluating Force Transmission, Friction, and Contact Pressure Distribution of Surgical Spring Forceps (Tweezers) [PDF] Rui Zhu, Yuma Takamura, Ikuo Yamamoto, Keitaro Matsumoto, and Takeshi Nagayasu (Received December 1, 2020; Accepted February 16, 2021) Keywords: spring forceps, force transmission, friction, contact pressure, load-cell sensor
To meet a surgeon’s need to compare the physical properties of conventional surgical spring forceps (tweezers), a hydraulic-driven system (HDS) based on syringes and syringe pumps is used for driving a left–right symmetrical lever linkage system of a testing device. Furthermore, by using an Arduino microcontroller and four load cells, a simple real-time feedback control system was built to digitally control the operating tweezers in the bar parts and monitor the forces on the jaw side of a surgical tweezers. Then, the same models of surgical tweezers from two different manufacturers were tested with the following test items: (1) the transmission relationship between the input side (bar area) and the output side (jaw side), (2) the contact pressure between the input side and the output side (tested using a Fujifilm Prescale System), (3) the horizontal friction on the jaw side, (4) the horizontal friction in the pinch bar area, and (5) the vertical friction in the pinch bar area. Finally, by analyzing the test results, the performances of the two surgical tweezers were compared and evaluated.
Corresponding author: Rui ZhuThis work is licensed under a Creative Commons Attribution 4.0 International License. Cite this article Rui Zhu, Yuma Takamura, Ikuo Yamamoto, Keitaro Matsumoto, and Takeshi Nagayasu, Research and Development of Testing Device for Evaluating Force Transmission, Friction, and Contact Pressure Distribution of Surgical Spring Forceps (Tweezers), Sens. Mater., Vol. 33, No. 3, 2021, p. 919-932. |