Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2023 Oct;42(5):651-657.
doi: 10.1007/s12664-023-01396-y. Epub 2023 Jul 6.

Comparison of the mechanical properties of retrieval basket catheters for bile duct stones: An experimental study

Tadahisa Inoue  1 , Mayu Ibusuki  2 , Rena Kitano  2 , Kazumasa Sakamoto  2 , Satoshi Kimoto  2 , Yuji Kobayashi  2 , Yoshio Sumida  2 , Yukiomi Nakade  2 , Kiyoaki Ito  2 , Masashi Yoneda  2
Affiliations

Comparison of the mechanical properties of retrieval basket catheters for bile duct stones: An experimental study

Tadahisa Inoue et al. Indian J Gastroenterol. 2023 Oct.

Abstract

Background: Although numerous retrieval baskets are currently available for the extraction of bile duct stones, their mechanical properties have not been evaluated. This study aimed to ascertain the characteristics of retrieval baskets for bile duct stones by examining their mechanical properties.

Methods: This experimental study tested the mechanical properties of seven retrieval baskets for bile duct stones. The radial force (RF) was measured using a dedicated measurement device and the axial force (AF) was measured using the conventional manual method.

Results: The mean RF differed significantly among the baskets (p < 0.001) and was the strongest for VorticCatch (1.62 N ± 0.02) and COAXIS (1.62 N ± 0.04), followed by RASEN (1.27 N ± 0.02), Memory Basket (0.95 N ± 0.01), 8-wire Nitinol Basket (0.93 N ± 0.01), StoneHunter (0.78 N ± 0.01) and Flower Basket (0.37 N ± 0.01), respectively. The mean AF differed significantly among the baskets (p < 0.001) and was the highest for VorticCatch (0.668 N ± 0.032), followed by COAXIS (0.629 N ± 0.041), StoneHunter (0.574 N ± 0.037), 8-wire Nitinol Basket (0.546 N ± 0.010), Memory Basket (0.542 N ± 0.024), RASEN (0.435 N ± 0.008) and Flower Basket (0.297 N ± 0.011), respectively. The baskets were categorized into four groups with comparable mechanical properties based on the RF and AF: group 1, low RF and low AF; group 2, moderate RF and moderate AF; group 3, high RF and moderate AF; and group 4, high RF and high AF.

Conclusions: This study revealed distinct mechanical properties of various retrieval baskets used for extracting bile duct stones, which may enhance the understanding of their action. Our results could also aid the development of retrieval baskets in future.

Keywords: Axial force; Bile duct stone; Common bile duct; Endoscopic extraction; Endoscopic retrograde cholangiography; Ex vivo; Intrahepatic bile duct; Mechanical property; Radial force; Retrieval basket.

PubMed Disclaimer

Similar articles

See all similar articles

Cited by

References

    1. Williams EJ, Green J, Beckingham I, et al. Guidelines on the management of common bile duct stones (CBDS). Gut. 2008;57:1004–21.
    1. ASGE Standards of Practice Committee, Maple JT, Ikenberry SO, et al. The role of endoscopy in the management of choledocholithiasis [published correction appears in Gastrointest Endosc. 2012;75:230. e14]. Gastrointest Endosc. 2011;74:731–44.
    1. Yasuda I, Itoi T. Recent advances in endoscopic management of difficult bile duct stones. Dig Endosc. 2013;25:376–85.
    1. Ozawa N, Yasuda I, Doi S, et al. Prospective randomized study of endoscopic biliary stone extraction using either a basket or a balloon catheter: the BasketBall study. J Gastroenterol. 2017;52:623–30.
    1. Ishiwatari H, Kawakami H, Hisai H, et al. Balloon catheter versus basket catheter for endoscopic bile duct stone extraction: a multicenter randomized trial. Endoscopy. 2016;48:350–7.

LinkOut - more resources