A comparison of holding strength of various surgical clips

Abstract

Due to advances in clip design, new types of surgical ligation clips are available that may reduce clip failure and improve function, especially for 5-mm clip appliers. We tested a preformed spring clip based on a 5-mm applier against other commonly used clips from 5- and 10-mm multiloading clip appliers. Five different clips were compared using a digital force gauge to test perpendicular pulloff force after application to tubing of varying thickness and compliance. The average pull-off force for commonly used 5-mm and 10-mm clip appliers was 0.29 +/- 0.06 and 0.35 +/- 0.05 kg, respectively. Average pull-off force for the new preformed spring clip was 0.53 +/- 0.07 kg (p <0.0001). The new clip technology has significantly higher pull-off force than other currently used clips. This may be particularly beneficial in procedures requiring 5-mm clip appliers, which are known to place clips with lower holding force.

Pull-off characteristics of double-shanked compared to single-shanked ligation clips: an animal study

“…Addressing the removal safety issue, it became obvious that the radial pull-off force is less than half the force needed for axial pull-off. In accordance with in vitro results, it can be concluded that the radial type of shear stress can be expected to be crucial in clip dislocation [13], [14]. The Nelson et al study using silicon tubes resulted in a 1.8-fold axial removal force compared to radial removal force and was comparable to the results of the present study in the animal model (2.2-fold).…”

Control of the Renal Artery and Vein with the Nonabsorbable Polymer Ligating Clip in Hand-Assisted Laparoscopic Donor Nephrectomy

“…Titanium clips may increase graft arterial length compared with the stapling device, but may become easily dislodged with transverse force (8,9). Multiple clinical cases of titanium clip dislodgment have been reported and have resulted in significant complications including gas embolus and hemorrhage (10)(11)(12)(13).…”

Comparison of Holding Strength of Suture Anchors for Hepatic and Renal Parenchyma

“…9 In our study, the addition of a small pledget did not make a difference in terms of either parenchymal laceration or the holding strength of the different suture anchors.…”