Development and mechanical-functional validation of 3D-printed laparoscopic forceps

TL;DR

This paper shows how 3D printing can be used to create functional laparoscopic forceps for surgery.

Contribution

The novel contribution is the development and validation of a 3D-printed laparoscopic forceps prototype called 'Easylap'.

Findings

The forceps were successfully 3D printed using PLA and included functional gripping and rotation capabilities.

The prototype weighed 48 grams and measured 43cm, but had reduced strength due to the material.

The device was validated using mechanical-functional tests and a surgical simulator.

Abstract

3-dimensional printing has enabled the development of unique and affordable additive manufacturing, including the prototyping and production of surgical forceps. Objective: demonstrate the development, 3D printing and mechanical-functional validation of a laparoscopic grasping forceps.

the clamp was designed using a computer program and printed in 3 dimensions with polylactic acid (PLA) filament and added 5 screws for better leverage. Size and weight measurements were carried out, as well as mechanicalfunctional grip and rotation tests in the laboratory with a validated simulator.

Called “Easylap”, the clamp weighed 48 grams, measured 43cm and was printed in 8 pieces, taking an average of 12 hours to produce. It allowed the simulation of the functional characteristics of laparoscopic pressure forceps, in addition to the rotation and rack locking mechanism. However, its strength is reduced due to the material used.

It is possible to develop plastic laparoscopic grasping forceps through 3-dimensional printing.

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