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Publisher: Springer International Publishing
Languages: English
Types: Other
This paper focuses on the development of full-field experimental methods for validating computational models of needle insertion, and specifically the development of suitable tissue surrogate materials. Gelatine also known as “ballistic gel” is commonly used as a tissue surrogate since the modulus of elasticity matches that of tissue. Its birefringent properties also allow the visualisation of strains in polarised light. However, other characteristics of tissue are not well emulated by gelatine, for example the fibrous network of cells of tissue is not well represented by the granular microstructure of gelatine, which tears easily. A range of birefringent flexible materials were developed and calibrated for photoelastic analysis. The most suitable were then used to explore quantitatively the different strain distributions in tissue when subjected to a range of needles with different tip profiles.
  • The results below are discovered through our pilot algorithms. Let us know how we are doing!

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    • 2 Jahya, A, van der Heijden, F, Misra. S, Observations of Three-Dimensional Needle Deflection during Insertion into Soft Tissue. International Conference on Biomedical Robotics and Biomechatronics, Italy, June 2012, 1205-1210, 2012
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