Feasibility Study and Experimental Evaluation of the Design of Nodule Prototype Developed for Palpation Display Apparatus: A Novel Device for Contactless Primary Tactile Diagnosis.

Sakura Sikander, Pradipta Biswas, Sang-Eun Song

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Article in Micromachines, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 · Who and what money

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3 authors.

Sakura SikanderDepartment of Mechanical and Aerospace Engineering, University of Central Florida, Orlando, FL 32816, USA.

Pradipta BiswasDepartment of Mechanical and Aerospace Engineering, University of Central Florida, Orlando, FL 32816, USA.

Sang-Eun SongDepartment of Mechanical and Aerospace Engineering, University of Central Florida, Orlando, FL 32816, USA.ORCID 0000-0001-8579-2008

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundLack of feasible palpation display for primary diagnosis of a tumor without any need of physician to patient physical contact has been reported as one of the major concerns. To further explore this area, we developed a novel palpation device consisting of a uniquely designed nodule mechanism (based on optimizing nodule top and bottom hemisphere wall thickness and manipulating granular jamming method) that can vary stiffness while maintaining the shape of the same nodule display, for which current devices are not capable of in terms of aping a tumor.

methodsThis paper evaluates the manufacturing approach of the nodule, exploring several iterations of the nodule prototype. Experiments were performed on nodule prototypes of varying wall thicknesses in order to evaluate its effect on stiffness and deformation. RESULTS AND

conclusionsExperimental results showed that nodule top and bottom wall thickness had a significant effect on the stiffness and deformation of the nodule. The higher the thickness of the top hemisphere and the lower the thickness of the bottom hemisphere, the greater the stiffness the nodule can achieve. Similarly, the display shape of the nodule can be maintained with minimal or no deformation if the nodule top hemisphere thickness is optimally higher than bottom hemisphere thickness.

Indexed as

granular jammingpalpationpalpation simulatorremote diagnosissoft medical devicesoft roboticsstiffnesstactiletumor

Identifiers

PMID34069631

DOI10.3390/mi12050576

PMCPMC8160851

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