University of Twente Student Theses
Heating Solution for a variable Stiffness Surgical Manipulator
Bos, Jonathan (2022) Heating Solution for a variable Stiffness Surgical Manipulator.
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| Abstract: | Minimally invasive surgeries are becoming more predominant as these surgeries require less invasive techniques than conventional surgeries. These minimally invasive surgeries require small incisions made in the body without increasing the size of the manipulator to be inserted inside and steered. Small manipulators can be made of smart materials such as shape memory materials. Shape memory polymer is an interesting material to use because its stiffness can vary depending on temperature. This thesis will look at different heating methods for use in an already existing design of a variable stiffness surgical manipulator made with shape memory polymer. Joule heating using nichrome wire will be expanded upon and modeled to characterize the thermal behavior of the heated shape memory polymer inside the prototype design. This is done in MATLAB R2021b and COMSOL Multiphysics 5.1. Experiments were conducted using the FLUKE Ti480 pro to verify the model and to evaluate if the heating method for heating the shape memory polymer variable stiffness manipulator is effective. The nichrome wire can effectively be used to heat the prototype for 30 seconds to a temperature of 60 °C. It takes approximately 200 seconds for the shape memory polymer to cool back down. |
| Item Type: | Essay (Bachelor) |
| Faculty: | ET: Engineering Technology |
| Subject: | 33 physics |
| Programme: | Biomedical Technology BSc (56226) |
| Link to this item: | https://purl.utwente.nl/essays/97737 |
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