Medical simulation training is widely used to effectively train for invasive medical procedures such as peripheral nerve blocks. Traditionally, accurate haptic training relies on expensive cadavers, manikins, or advanced haptic robots. Proposed herein is a novel concept for haptic training called the low-cost haptic force needle insertion simulator (LCNIS), which uses material fracture inside disposable cartridges to accurately replicate the force of inserting a needle into tissue. Cadaver and material fracture experiments were performed to develop and determine the accuracy of the LCNIS. The material testing showed that polycarbonate had the highest maximum needle puncture force of the materials tested, 9.85 N, and that fluorinated ethylene propylene had the lowest maximum puncture force, 0.84 N. The cadaver results showed that the error between the three peak forces in a cadaver and a cadaver mimicking cartridge was 1.00 N, 0.01 N, and 1.54 N. The standard deviation of these peaks was 0.60 N, 0.55 N, and 0.41 N. This novel method of haptic simulation can easily be adapted to recreate any type of force and, therefore, could be utilized to train for a wide variety of medical procedures.

中文翻译：

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使用材料断裂的低成本触觉模拟

医学模拟训练被广泛用于有效训练周围神经阻滞等侵入性医疗程序。传统上，准确的触觉训练依赖于昂贵的尸体、人体模型或先进的触觉机器人。本文提出了一种用于触觉训练的新概念，称为低成本触觉力针插入模拟器 (LCNIS)，它使用一次性药筒内的材料断裂来准确地复制将针插入组织的力。进行尸体和材料断裂实验以开发和确定 LCNIS 的准确性。材料测试表明，在测试材料中，聚碳酸酯的最大针刺力最高，为 9.85 N，氟化乙烯丙烯的最大针刺力最低，为 0.84 N。