Realistic modeling of mechanical behavior of soft tissue has been recognized as an essential part for medical Internet of thing for minimal invasive surgery (MIS) training simulator. Therefore, the blockchain-based constitutive model is crucial for mechanical response of soft tissue modeling. In this article, based on the Ogden second order model, a novel hyperplastic model was presented to describe the stress-stretch relationship in the MIS training system. To validate this theoretical model, two experimental techniques (uniaxial compression and uniaxial tensile) were conducted to obtain data related to stress-strain in the blockchain system, which plays an important role in investigating the mechanical behavior of soft tissue. Our results show that the new model has a satisfied coincidence of the experimental data than other existing models. Furthermore, the viscoelastic properties of soft tissue were investigated and a viscoelastic model based on three-parameter was utilized to interpret the viscoelastic behavior of the soft tissue. The contributions of this article include several biomechanical tests that were performed to investigate the soft tissue hyperelastic and viscoelastic properties in the MIS system, and theoretical guidance for simulating soft tissue mechanical behavior in the blockchain-based simulation system.

中文翻译：

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值得信赖的基于区块链的医疗物联网微创手术训练模拟器

软组织力学行为的真实建模已被公认为微创手术 (MIS) 训练模拟器的医疗物联网的重要组成部分。因此，基于区块链的本构模型对于软组织建模的机械响应至关重要。在本文中，基于 Ogden 二阶模型，提出了一种新的增生模型来描述 MIS 训练系统中的应力-拉伸关系。为了验证该理论模型，我们进行了两种实验技术（单轴压缩和单轴拉伸）以获得与区块链系统中的应力-应变相关的数据，这在研究软组织的力学行为方面起着重要作用。我们的结果表明，与其他现有模型相比，新模型具有令人满意的实验数据重合度。此外，研究了软组织的粘弹性特性，并利用基于三参数的粘弹性模型来解释软组织的粘弹性行为。本文的贡献包括为研究 MIS 系统中的软组织超弹性和粘弹性特性而进行的多项生物力学测试，以及在基于区块链的模拟系统中模拟软组织力学行为的理论指导。