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S&M2078 Research Paper of Special Issue https://doi.org/10.18494/SAM.2019.2419 Published: December 26, 2019 Research and Development of Testing Device for Evaluating Force Transmission and Grasping Pressure of Laparoscopic Forceps [PDF] Rui Zhu, Maxime Maréchal, Masahiro Suetsugu, Ikuo Yamamoto, Murray J. Lawn, Keitaro Matsumoto, and Takeshi Nagayasu (Received May 1, 2019; Accepted October 21, 2019) Keywords: laparoscopic forceps, grip force, grasping force, contact-pressure distribution, force transmission
In this study, we have developed a device with the aim of understanding the relationship between the force exerted by a surgeon on the handles/grips of laparoscopic forceps and the force transmitted to the forceps jaw side. To measure this relationship, force is applied to the handles/grips of a set of laparoscopic forceps using an electrically powered actuator and a pressure sensor load cell is used to measure the force applied. On the jaw side, a forcesensitive resistor (FSR) generates pressure information. A microprocessor uses the load cell data, and a proportional-integral-derivative (PID) controller stably maintains the actuation pressure to match that requested by the user’s settings. A user interface has been developed for this device to allow both engineers and surgeons to use it. To date, two types of forceps have been analyzed, both Olympus HiQ+ series graspers, and the mechanical force transmission mechanisms involved have been described. The pressure distribution exerted on the jaw side has also been obtained using a Fujifilm Prescale® system (FPS).
Corresponding author: Rui ZhuThis work is licensed under a Creative Commons Attribution 4.0 International License. Cite this article Rui Zhu, Maxime Maréchal, Masahiro Suetsugu, Ikuo Yamamoto, Murray J. Lawn, Keitaro Matsumoto, and Takeshi Nagayasu, Research and Development of Testing Device for Evaluating Force Transmission and Grasping Pressure of Laparoscopic Forceps, Sens. Mater., Vol. 31, No. 12, 2019, p. 4205-4214. |