MR-compatible biopsy needle with enhanced tip force sensing
Identifieur interne : 001A44 ( Main/Curation ); précédent : 001A43; suivant : 001A45MR-compatible biopsy needle with enhanced tip force sensing
Auteurs : Santhi Elayaperumal ; Jung Hwa Bae ; David Christensen ; Mark R. Cutkosky ; Bruce L. Daniel ; Joannes M. Costa [États-Unis] ; Richard J. Black [États-Unis] ; Fereydoun Faridian [États-Unis] ; Behzad Moslehi [États-Unis]Source :
- Joint EuroHaptics Conference and Symposium on Haptic Interfaces for Virtual Environment and Teleoperator Systems : World Haptics Conference. World Haptics Conference ; 2013.
Abstract
We describe an instrumented biopsy needle that provides physicians the capability to sense interaction forces directly at the tip of the needle’s inner stylet. The sensors consist of optical fiber Bragg gratings (FBGs), and are unaffected by electromagnetic fields; hence the needle is suitable for MR-guided procedures. In comparison to previous instrumented needles that measure bending strains, the new design has additional sensors and a series of micro-machined holes at the tip. The holes increase strain sensitivity, especially to axial forces, without significantly reducing the stiffness or strength. A comparison of the dynamic forces measured with the new needle and those obtained using a force/torque sensor at the needle base shows that the enhanced tip sensitivity is particularly noticeable when there is significant friction along the needle sleeve.
Url:
DOI: 10.1109/WHC.2013.6548393
PubMed: 26509189
PubMed Central: 4620047
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Santhi Elayaperumal<affiliation><nlm:aff id="A1">Mechanical Engineering Dept., Stanford University</nlm:aff>
<wicri:noCountry code="subfield">Stanford University</wicri:noCountry>
</affiliation>
<affiliation><nlm:aff id="A1">Mechanical Engineering Dept., Stanford University</nlm:aff>
<wicri:noCountry code="subfield">Stanford University</wicri:noCountry>
</affiliation>
<affiliation><nlm:aff id="A1">Mechanical Engineering Dept., Stanford University</nlm:aff>
<wicri:noCountry code="subfield">Stanford University</wicri:noCountry>
</affiliation>
<affiliation><nlm:aff id="A1">Mechanical Engineering Dept., Stanford University</nlm:aff>
<wicri:noCountry code="subfield">Stanford University</wicri:noCountry>
</affiliation>
<affiliation><nlm:aff id="A2">Radiology Dept., Stanford University</nlm:aff>
<wicri:noCountry code="subfield">Stanford University</wicri:noCountry>
</affiliation>
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<front><div type="abstract" xml:lang="en"><p id="P1">We describe an instrumented biopsy needle that provides physicians the capability to sense interaction forces directly at the tip of the needle’s inner stylet. The sensors consist of optical fiber Bragg gratings (FBGs), and are unaffected by electromagnetic fields; hence the needle is suitable for MR-guided procedures. In comparison to previous instrumented needles that measure bending strains, the new design has additional sensors and a series of micro-machined holes at the tip. The holes increase strain sensitivity, especially to axial forces, without significantly reducing the stiffness or strength. A comparison of the dynamic forces measured with the new needle and those obtained using a force/torque sensor at the needle base shows that the enhanced tip sensitivity is particularly noticeable when there is significant friction along the needle sleeve.</p>
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