A Robust Uniaxial Force Sensor for Minimally Invasive Surgery

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A Robust Uniaxial Force Sensor for Minimally Invasive Surgery

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Title: A Robust Uniaxial Force Sensor for Minimally Invasive Surgery
Author: Yip, Michael C.; Yuen, Shelten G.; Howe, Robert D.

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Citation: Yip, Michael C., Shelten G. Yuen, and Robert D. Howe. 2010. A robust uniaxial force sensor for minimally invasive surgery. IEEE Transactions on Biomedical Engineering Bme 57(5): 1008-11.
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Abstract: This paper presents a novel, miniature uniaxial force sensor for use within a beating heart during mitral valve annuloplasty. The sensor measures 5.5 mm in diameter and 12 mm in length, and provides a hollow core to pass instrumentation. A soft elastomer flexure design maintains a waterproof seal. Fiber optic transduction eliminates electrical circuitry within the heart, and acetal components minimize ultrasound imaging artifacts. Calibration uses a nonlinear, viscoelastic method, and in vitro tests demonstrate a 0 to 4 N force range with RMS errors of 0.13 N (<3.2%). In vivo tests provide the first endocardial measurements of tissue-MIS instrument interaction forces in a beating heart.
Other Sources: http://www.ncbi.nlm.nih.gov/pubmed/20172798
Citable link to this page: http://nrs.harvard.edu/urn-3:HUL.InstRepos:4908615
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