Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2013 Mar 20:8576:10.1117/12.2004947.
doi: 10.1117/12.2004947.

Ball Lens Fiber Optic Sensor based Smart Handheld Microsurgical Instrument

Cheol Song  1 , Peter L Gehlbach, Jin U Kang
Affiliations

Ball Lens Fiber Optic Sensor based Smart Handheld Microsurgical Instrument

Cheol Song et al. Proc SPIE Int Soc Opt Eng. .

Abstract

During freehand performance of vitreoretinal microsurgery the surgeon must perform precise and stable maneuvers that achieve surgical objectives and avoid surgical risk. Here, we present an improved smart handheld microsurgical tool which is based on a ball lens fiber optic sensor that utilizes common path swept source optical coherence tomography. Improvements include incorporation of a ball lens single mode fiber optic probe that increases the working angle of the tool to greater than 45 degrees; and increases the magnitude of the distance sensing signal through water. Also presented is a cutting function with an improved ergonomic design.

Keywords: CP-OCT; SMART; ball lens; handheld surgical instrument; vitreoretinal microsurgery.

PubMed Disclaimer

Figures

Fig 1
Fig 1
Fig. 1 shows the top view of SMART configuration including CP SS-OCT (a) previous SMART (b) current SMART
Fig 2
Fig 2
Fig. 2 shows the SMART system on optical table including SS-OCT and a motion controller without a computer.
Fig. 3
Fig. 3
Compensation position, Fourier analysis, RMSE, and average height of the ball lens based SMART on the dry sample in water, as a function of the slope with reference to the vertical plane in motion compensation mode.
Fig 4
Fig 4
Fig. 4 shows cutting performance with a current SMART blade.
See this image and copyright information in PMC

Similar articles

See all similar articles

Cited by

References

    1. Balicki M, Uneri A, Iordachita I, Handa J, Gehlbach P, Taylor R. Micro-force Sensing in Robot Assisted Membrane Peeling for Vitreoretinal Surgery. Med Image Comput Assist Interv. 2010;13(Pt 3):303–310. - PMC - PubMed
    1. MacLachlan RA, Becker BC, Cuevas Tabarés J, Podnar GW, Lobes LA, Jr, Riviere CN. Micron: an actively stabilized handheld tool for microsurgery. IEEE Trans Robot. 2012;28(1):195–212. - PMC - PubMed
    1. Tao YK, Ehlers JP, Toth CA, Izatt JA. Intraoperative spectral domain optical coherence tomography for vitreoretinal surgery. Opt Lett. 2010;35(10):3315–3317. - PMC - PubMed
    1. Liu X, Iordachita I, He X, Taylor R, Kang J. Miniature fiber-optic force sensor based on low-coherence Fabry-Pérot interferometry for vitreoretinal microsurgery. Biomed Opt Express. 2012;3(5):1062–1076. - PMC - PubMed
    1. Zhang K, Kang J. Common-path low-coherence interferometry fiber-optic sensor guided microincision. J Biomed Opt. 2011;16(9):0950031–0950034. - PMC - PubMed