Measurement of Suture Pullout Forces of the Pancreatic Duct and Capsule

A. Gong, Sophia L. Bidinger, A. DeSchmidt, J. E. Batista, Agnes Y. Song, A. Schul, Everet Y. Wang, Jack Norfleet, M. Palavecino, R. Sweet
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Abstract

A thorough biomechanical understanding of human organs is of increasing importance for designing and improving a wide range of medical technologies from simulators to medical devices. Despite the crucial need for data, little procedure-specific biomechanical testing on human tissue has been published. Specifically, pancreatic duct anastomosis, which has high rates of complications related to pancreatic duct leakage and patency, could benefit from improved assistive technologies. This study aims to help characterize the biomechanics of this critical step of the procedure by measuring the suture pullout force (SPOF) of the pancreatic duct and capsule. 216 tests were performed on 33 fresh, unfixed donated human pancreases. A previously reported uniaxial testing frame, was used to measure the SPOF of the pancreases. The mean pancreatic duct SPOF was 2.62 ± 1.11 N and the mean pancreatic capsule SPOF was 1.99 ± 1.33 N. To our knowledge, this is the first reported human pancreatic duct and capsule suture pullout measurement. These data can be used to inform a wide variety of biomedical technologies with primary interest in high-fidelity training simulators.
胰管和胰囊缝线拔出力的测定
对人体器官的彻底生物力学理解对于设计和改进从模拟器到医疗设备的广泛医疗技术越来越重要。尽管迫切需要数据,但很少有针对人体组织的特定程序生物力学测试发表。具体来说,胰管吻合因胰管渗漏和通畅而并发症发生率很高,可以受益于辅助技术的改进。本研究旨在通过测量胰管和胰腺囊的缝线拔出力(SPOF)来帮助表征该手术关键步骤的生物力学特性。对33个新鲜的、未固定的捐赠的人类胰腺进行了216次测试。先前报道的单轴测试框架用于测量胰腺的SPOF。平均胰管SPOF为2.62±1.11N,平均胰腺包膜SPOF为1.99±1.33N。据我们所知,这是首次报道的人类胰管和包膜缝线拉出测量。这些数据可用于为各种生物医学技术提供信息,这些技术主要关注高保真训练模拟器。
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CiteScore
1.50
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