TY - GEN
T1 - Investigation of friction in needle to soft tissue interaction
AU - Abdullah, Arif M.
AU - Barnett, Andrew
AU - Moore, Jason Zachary
AU - Wolfe, Douglas Edward
PY - 2013
Y1 - 2013
N2 - Similar to metal cutting, frictional forces occur during medical tissue cutting procedures. In needle insertion high friction causes tissue deflection which hinders the needle positioning accuracy inside the tissue. Poor needle positioning accuracy can be detrimental to the efficacy of the medical procedure. This work investigates how needle surface roughness, the application of TiN coating, and insertion speed affect the frictional force between a needle and tissue. Experiments with four 11 gauge needles of varying surface roughness and one TiN coated needle were carried out to investigate only the frictional forces at the needle tissue interface. It was found that increasing speed increases frictional force, texturing a needle can lower the frictional force, and applying a TiN coating reduced the needles friction by 38%.
AB - Similar to metal cutting, frictional forces occur during medical tissue cutting procedures. In needle insertion high friction causes tissue deflection which hinders the needle positioning accuracy inside the tissue. Poor needle positioning accuracy can be detrimental to the efficacy of the medical procedure. This work investigates how needle surface roughness, the application of TiN coating, and insertion speed affect the frictional force between a needle and tissue. Experiments with four 11 gauge needles of varying surface roughness and one TiN coated needle were carried out to investigate only the frictional forces at the needle tissue interface. It was found that increasing speed increases frictional force, texturing a needle can lower the frictional force, and applying a TiN coating reduced the needles friction by 38%.
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M3 - Conference contribution
AN - SCOPUS:84892760364
SN - 9781627486972
T3 - Transactions of the North American Manufacturing Research Institution of SME
SP - 30
EP - 36
BT - 41st North American Manufacturing Research Conference 2013 - Transactions of the North American Manufacturing Research Institution of SME, NAMRC 2013
T2 - 41st North American Manufacturing Research Conference 2013, NAMRC 2013
Y2 - 10 June 2013 through 14 June 2013
ER -