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Introduction:Stapling devices are essential in modern surgery, evolving from traditional suturing techniques to powered variants enhancing surgical outcomes.The ECHELON 3000 Stapler and Reload System (ECH3000) was developed to address continued challenges in laparoscopic surgery by optimizing staple formation while minimizing complications.Staple line leaks (SLs), bleeding, and surgical site infections (SSIs) remain serious concerns post-gastric surgeries, particularly in sleeve gastrectomy. Methods:The objective of this post-market, prospective study was to evaluate the safety and performance of the ECH3000 during laparoscopic sleeve gastrectomy.Conducted across four centers in the United States, the study collected data on patient demographics, intraoperative outcomes, and adverse events (AEs) through a 30-day follow-up.The primary endpoint was the incidence of specific serious adverse events (SLs, SSIs, blood loss, hematoma; SAEs) related to the device.Results: A total of 117 LSG procedures were performed in patients with a mean age of 44.2 years and BMI of 45.9 kg/m.The mean operative time was 79.0 minutes, with an estimated mean blood loss of 19.0 mL, and no conversions to open surgery.There were zero (0.0%) specific device-related SAEs reported within the follow-up period, while overall AEs were reported in 5.1% of cases.Of the 690 total firings of the stapler, surgeons reported acceptable staple line integrity in 99.6% of those firings. Conclusions:The results suggest that the ECH3000 is a reliable device for achieving staple line integrity in LSG with no occurrences of SLs, postoperative bleeding, or SSIs.