APPLICATION OF ENDOSCOPIC SUTURE MACHINE: IN VITRO DURABILITY STUDY

Aims Various endoscopic procedures had been developed such as endoscopic submucosal dissection and endoscopic bariatric surgery.However, such advanced procedures are mostly dependent on experiences of endoscopists.Numerous endoscopic devices had been invented in an effort to decrease procedural complication,but only a few of them had demonstrated improvements in closure strength and reproducibility.Thus,in this study,we evaluated the feasibility and reproducibility of the endoscopic suture machine and to identify the durability difference according to the location closure method.

Methods Approximately 1cm sized tears were made with a scalpel on antrum, low-body and mid-body on the greater curvature.The suture machine with a 19-gauge needle with thread is loaded at the end of the scope.The suture device is placed at the selected site and close the tear.To compare the closure strength, endoclips were used to close the defect.Then,the stomach models were test for air leakage and the closure strength were tested by mechanical loading tester.

Results None of the stomach models showed air leakage.The stomach models closed with the suture machine showed more stable closure strength compared to those with endoclips.Also, we evaluated closure strength according to the location of the defects.We discovered tears on antrum were more securely closed than the tears on the body.

Conclusions The durability of suture differs according to the location of the stomach and the closure methods.Use of endoscopic suture device is expected to decrease procedure-related complications such as perforation and bleeding.The results demonstrated the reproducibility of the suture device and further studies are necessary to evaluate the consistency of the suture machine

Publication History

Article published online:
14 April 2022