Multifunctional Forceps for Use in Endoscopic Surgery—Initial Design, Prototype, and Testing

Abstract

This paper presents a 3.0 mm diameter multifunctional endoscopic forceps design for use in minimally invasive flexible endoscopic surgical procedures. Multifunctional capabilities including grasping, spreading, and cauterizing tissue are demonstrated experimentally and compared to commercially available forceps. Models of the proposed design predict considerable improvements in opening range (140%) and force application (87%) for both grasping and spreading when compared to currently used endoscopic forceps. Several of the tool’s design characteristics promote fail-safe malfunctions, including locking before catastrophic failure and a decreased likelihood in detached parts. Initial benchtop testing shows good agreement between prototype performance and model prediction. Frictional losses experienced during testing were found to depend on load orientation.

The effect of postural freedom to increase the neutral positions during laparoscopic surgery

“…Studies had shown the advantages of minimal access procedures compared to open conventional ones. The reduction in surgical invasiveness results in reductions of procedure time, post-operation pain, trauma, blood-loss, recovery time and risk of infection [1][2][3][4][5][6].…”

Structured Analysis of Stainless Steel 316L Material of Micro-Forceps Used in Vitrectomy Surgery by Biomechanics Modeling

“…The change of the mecha- In this study described above, calibrated forceps had variable or uncontrolled contact surfaces, despite intentions to incorporate such control for constant contact surface area [7,8]. One solution to this problem would be to attach a xed, round, smooth slug to the tip of each arm of the forceps, thus ensuring a constant contact area [9].…”