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. Author manuscript; available in PMC: 2018 Apr 1.
Published in final edited form as: IEEE Sens J. 2017 Jan 17;17(7):1952–1963. doi: 10.1109/JSEN.2017.2654489

Fig. 7.

Fig. 7

FBG fiber optic force sensors. a) FBG sensor TactiCath developed by Endosense SA in collaboration with Stanford University for atrial fibrillation [2] ©2008 American Heart Association; b) A soft tissue indentor with 1-DOF FBG force sensing developed at Trinity College, Ireland [48] ©2012 Elsevier B.V.; c) 2-DOF FBG sensor for retinal microsurgery developed at Johns Hopkins University [44] ©2009 Springer; d) 3-DOF FBG sensor for retinal microsurgery developed at Johns Hopkins University [47], [56] ©2012 SPIE.