Structural Design and Verification of a Novel Electric Stapler for Minimally Invasive Surgery
10.16156/j.1004-7220.2019.06.10
- VernacularTitle:微创电动吻合器的创新结构设计与功能验证
- Author:
Chenxu LIU
1
;
Chengli SONG
1
;
Yu ZHOU
1
;
Lin MAO
1
;
Wenming GE
1
;
Peiyao WANG
1
;
Li CHEN
1
Author Information
1. School of Medical Instrument and Food Engineering, University of Shanghai for Science and Technology
- Publication Type:Journal Article
- Keywords:
minimally invasive surgery;
electric stapler;
structural design;
in vitro experiment
- From:
Journal of Medical Biomechanics
2019;34(6):E631-E636
- CountryChina
- Language:Chinese
-
Abstract:
Objective To develop a novel electric stapler, so as to improve the automation, convenience and precision of minimally invasive surgery. Methods The clamping, firing and turning mechanism of the new electric stapler was innovatively designed to realize the electric drive of minimally invasive surgical anastomosis on the basis of traditional mechanical stapler. The motion process of electric clamping, firing and double-screw turning mechanism was analyzed in detail, and the equations for motion function of three mechanisms were solved, providing a theoretical basis for the intelligent control algorithm of electric stapler. Results The electric clamping and firing process was simulated using ADAMS software to verify the equation of motion. The prototype of the new electric stapler was made, and the anastomosis experiment and blasting pressure experiment of the in vitro small intestine tissues were carried out. The range of anastomotic blasting pressure was between 3.7 kPa and 11.67 kPa, meeting the basic requirements in clinic. Conclusions The structure of the new electric stapler can meet the requirements of electric pressing and firing in minimally invasive surgery, contributing to achieve tissue anastomosis more conveniently, quickly and effectively.
