Simulation and experimental studies of the SMA-activated needle behavior inside the tissue

Bardia Konh; Mohammad Honarvar; Parsaoran Hutapea

doi:10.1117/12.2084287

2 April 2015 Simulation and experimental studies of the SMA-activated needle behavior inside the tissue

Bardia Konh, Mohammad Honarvar, Parsaoran Hutapea

Proceedings Volume 9431, Active and Passive Smart Structures and Integrated Systems 2015; 94312J (2015) https://doi.org/10.1117/12.2084287
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2015, San Diego, California, United States

Abstract

Recently, the concept of developing an active steerable needle has gathered a lot of attention as they could potentially result in an improved outcome in various medical percutaneous procedures. Compared to the conventional straight bevel tip needles, active needles can be bent by means of the attached actuation component in order to reach the target locations more accurately. In this study, the movement of the passive needle inside the tissue was investigated using numerical and experimental approaches. A finite element simulation of needle insertion was developed using LSDYNA software to study the maneuverability of the passive needle. The Arbitrary-Eulerian-Lagrangian (ALE) formulation was used to model the interactions between the solid elements of the needle and the fluid elements of the tissue. Also the passive needle insertion tests were performed inside a tissue mimicking phantom. This model was validated for the 150mm of insertion which is similar to the depth in our needle insertion experiments. The model is intended to be based as a framework for modeling the active needle insertion in future.

Citation Download Citation

Bardia Konh, Mohammad Honarvar, and Parsaoran Hutapea "Simulation and experimental studies of the SMA-activated needle behavior inside the tissue", Proc. SPIE 9431, Active and Passive Smart Structures and Integrated Systems 2015, 94312J (2 April 2015); https://doi.org/10.1117/12.2084287

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