HapticV1, PubMed, Corpus, bibRecord, 001503

Modeling the forces of cutting with scissors.

Identifieur interne : 001503 ( PubMed/Corpus ); précédent : 001502; suivant : 001504

Modeling the forces of cutting with scissors.

Auteurs : Mohsen Mahvash ; Liming M. Voo ; Diana Kim ; Kristin Jeung ; Joshua Wainer ; Allison M. Okamura

Source :

IEEE transactions on bio-medical engineering [ 0018-9294 ] ; 2008.

RBID : pubmed:18334376

English descriptors

KwdEn :
- Computer Simulation, Computer-Aided Design, Elasticity, Equipment Design, Equipment Failure Analysis, Hardness, Humans, Models, Biological, Stress, Mechanical, Surgery, Computer-Assisted (methods), Surgical Instruments, Touch (physiology).
MESH :
- methods : Surgery, Computer-Assisted.
- physiology : Touch.
- Computer Simulation, Computer-Aided Design, Elasticity, Equipment Design, Equipment Failure Analysis, Hardness, Humans, Models, Biological, Stress, Mechanical, Surgical Instruments.

Abstract

Modeling forces applied to scissors during cutting of biological materials is useful for surgical simulation. Previous approaches to haptic display of scissor cutting are based on recording and replaying measured data. This paper presents an analytical model based on the concepts of contact mechanics and fracture mechanics to calculate forces applied to scissors during cutting of a slab of material. The model considers the process of cutting as a sequence of deformation and fracture phases. During deformation phases, forces applied to the scissors are calculated from a torque-angle response model synthesized from measurement data multiplied by a ratio that depends on the position of the cutting crack edge and the curve of the blades. Using the principle of conservation of energy, the forces of fracture are related to the fracture toughness of the material and the geometry of the blades of the scissors. The forces applied to scissors generally include high-frequency fluctuations. We show that the analytical model accurately predicts the average applied force. The cutting model is computationally efficient, so it can be used for real-time computations such as haptic rendering. Experimental results from cutting samples of paper, plastic, cloth, and chicken skin confirm the model, and the model is rendered in a haptic virtual environment.

DOI: 10.1109/TBME.2007.908069
PubMed: 18334376

Links to Exploration step

pubmed:18334376

Le document en format XML

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<author><name sortKey="Mahvash, Mohsen" sort="Mahvash, Mohsen" uniqKey="Mahvash M" first="Mohsen" last="Mahvash">Mohsen Mahvash</name>
<affiliation><nlm:affiliation>Mechanical Engineering Department, The Johns Hopkins University, 223 Latrobe Hall, 3400 North Charles Street, Baltimore, MD 21218 USA. mahvash@jhu.edu</nlm:affiliation>
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<author><name sortKey="Voo, Liming M" sort="Voo, Liming M" uniqKey="Voo L" first="Liming M" last="Voo">Liming M. Voo</name>
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<author><name sortKey="Kim, Diana" sort="Kim, Diana" uniqKey="Kim D" first="Diana" last="Kim">Diana Kim</name>
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<author><name sortKey="Jeung, Kristin" sort="Jeung, Kristin" uniqKey="Jeung K" first="Kristin" last="Jeung">Kristin Jeung</name>
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<author><name sortKey="Wainer, Joshua" sort="Wainer, Joshua" uniqKey="Wainer J" first="Joshua" last="Wainer">Joshua Wainer</name>
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<author><name sortKey="Okamura, Allison M" sort="Okamura, Allison M" uniqKey="Okamura A" first="Allison M" last="Okamura">Allison M. Okamura</name>
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<author><name sortKey="Mahvash, Mohsen" sort="Mahvash, Mohsen" uniqKey="Mahvash M" first="Mohsen" last="Mahvash">Mohsen Mahvash</name>
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<term>Equipment Design</term>
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<front><div type="abstract" xml:lang="en">Modeling forces applied to scissors during cutting of biological materials is useful for surgical simulation. Previous approaches to haptic display of scissor cutting are based on recording and replaying measured data. This paper presents an analytical model based on the concepts of contact mechanics and fracture mechanics to calculate forces applied to scissors during cutting of a slab of material. The model considers the process of cutting as a sequence of deformation and fracture phases. During deformation phases, forces applied to the scissors are calculated from a torque-angle response model synthesized from measurement data multiplied by a ratio that depends on the position of the cutting crack edge and the curve of the blades. Using the principle of conservation of energy, the forces of fracture are related to the fracture toughness of the material and the geometry of the blades of the scissors. The forces applied to scissors generally include high-frequency fluctuations. We show that the analytical model accurately predicts the average applied force. The cutting model is computationally efficient, so it can be used for real-time computations such as haptic rendering. Experimental results from cutting samples of paper, plastic, cloth, and chicken skin confirm the model, and the model is rendered in a haptic virtual environment.</div>
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<CommentsCorrectionsList><CommentsCorrections RefType="Cites"><RefSource>Surg Endosc. 2001 Mar;15(3):232-41</RefSource>
<PMID Version="1">11344421</PMID>
</CommentsCorrections>
<CommentsCorrections RefType="Cites"><RefSource>Phys Rev Lett. 2003 Nov 21;91(21):215507</RefSource>
<PMID Version="1">14683318</PMID>
</CommentsCorrections>
<CommentsCorrections RefType="Cites"><RefSource>IEEE Comput Graph Appl. 2004 Mar-Apr;24(2):48-55</RefSource>
<PMID Version="1">15387228</PMID>
</CommentsCorrections>
<CommentsCorrections RefType="Cites"><RefSource>Stud Health Technol Inform. 2001;81:69-74</RefSource>
<PMID Version="1">11317820</PMID>
</CommentsCorrections>
<CommentsCorrections RefType="Cites"><RefSource>J Biomech. 1997 Jan;30(1):91-4</RefSource>
<PMID Version="1">8970930</PMID>
</CommentsCorrections>
<CommentsCorrections RefType="Cites"><RefSource>IEEE Trans Inf Technol Biomed. 2006 Jul;10(3):618-26</RefSource>
<PMID Version="1">16871732</PMID>
</CommentsCorrections>
<CommentsCorrections RefType="Cites"><RefSource>IEEE Trans Biomed Eng. 2004 Oct;51(10):1707-16</RefSource>
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Modeling the forces of cutting with scissors.

Modeling the forces of cutting with scissors.

Source :

English descriptors

Abstract

Links to Exploration step

Le document en format XML

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