A new medical device to measure a stiffness of soft materials

• Autorzy: Oflaz H. , Baran O.

Identyfikatory

DOI

10.5277/abb140115

• Języki publikacji: EN

Abstrakty

EN

An objective in vivo measurement technique for assessing the material properties of soft tissue would be a valuabe tool in diagnosing dermatological pathologies. In order to make advancements in this field, a new hand-held device was designed to measure the stiffness of soft materials. The device measures the reaction forces experienced by the soft tissue under constant indentation deformations at the time of stiffness measurement. Agarose gel samples were prepared in a range of molarities to mimic the stiffness variabilities found in vivo. The stiffness of each gel was evaluated using two different measurement techniques. The first method utilized an industry standard durometer, designed to measure the hardness of materials in shore type 00 scales of soft plastics. The second measurement was taken using an original custom-built soft tissue stiffness meter, designed specifically for the present study. These two devices were compared and a strong correlation was found between them (r2 = 1.00, Spearman rank test). Additionally, it was observed that gels of different stiffness could be distinguished by both devices. In conclusion, the soft tissue stiffness can be accurately evaluated using the proposed device. The new device should be evaluated on human subjects in future studies, before it can be used to assess soft tissue disorders.

Słowa kluczowe

EN

soft tissue; dermatologic disorder; stiffness; biomechanics; durometer; biomedical engineering

PL

tkanka miękka; sztywność; biomechanika; inżynieria biomedyczna

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Acta of Bioengineering and Biomechanics
• Rocznik: 2014
• Tom: Vol. 16, no. 1
• Strony: 125--131
• Opis fizyczny: Bibliogr. 16 poz., rys., tab., wykr.

Twórcy

autor

Oflaz H.

• Izmir Katip Celebi University, Faculty of Engineering and Architecture, Department of Biomedical Engineering, Izmir, Turkey

autor

Baran O.

• Dokuz Eylul University, Institute of Health Science, Department of Biomechanics, Izmir, Turkey
• Dokuz Eylul University, Faculty of Medicine, Department of Orthopaedics and Traumatology, Izmir, Turkey

Bibliografia

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