Beyond the "B": a new concept of the surgical staple enabling miniature staplers

Surgical Endoscopy
Stefanos DemertzisLee Swanstrom

Abstract

Surgical staplers currently all rely on the same staple form-the "B" which necessitates a high delivery profile (12 mm). A novel "D" shape staple allows for an extremely low profile of the applicator. The acute and long-term efficacy of a D-shaped staple (Cardica, Redwood City, CA, USA) was compared to conventional B-form staples (Covidien, Norwalk, CN, USA) in an animal model for intestinal transections and anastomoses. Jejunojejunal anastomoses (JJ) were performed via mini-laparotomy in a swine model. White & blue D- and B-shaped staples were studied in three groups (planned survival 14-84 days). Intraoperative assessment included completeness of staple line, hemostasis, and need for intervention. Postoperatively, animals were evaluated for complications. At the time of sacrifice, gross pathological and histological assessments were performed. Twenty-three animals had 40 anastomoses (23 "D" and 17 "B" staple anastomoses) with no intraoperative mortalities. One "D" staple application required a manual extension of the cut. Acute hemostasis was 100 %. Group 1 (n = 5) compared white staples in JJs (D staple n = 5; B staple n = 5; 14-day survival = 100 %). Group 2 (n = 12) compared white staples in JJs (D staple n = 12; B staple ...Continue Reading

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Citations

Jul 26, 2015·Surgical Endoscopy·Andreas KutheKarl Oldhafer
Oct 31, 2018·Journal of Biomedical Materials Research. Part B, Applied Biomaterials·Hao BaiMinfang Chen
Dec 20, 2019·Surgical Innovation·Samwel Okoth Makanyengo, Dhan Thiruchelvam

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