期刊
BIOMEDICAL OPTICS EXPRESS
卷 3, 期 5, 页码 1062-1076出版社
OPTICAL SOC AMER
DOI: 10.1364/BOE.3.001062
关键词
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资金
- NIH BRP [1 R01 EB 007969]
- Johns Hopkins University
- Engineering Research Center for Computer- Integrated Surgical Systems and Technology (CISST ERC) under NSF [EC9731748]
During vitreoretinal surgery, the surgeon manipulates retinal tissue with tool-to-tissue interaction forces below the human sensory threshold. A force sensor (FS) integrated with conventional surgical tools may significantly improve the surgery outcome by providing tactile feedback to the surgeon. We designed and built a surgical tool integrated with a miniature FS with an outer diameter smaller than 1 mm for vitreoretinal surgery based on low-coherence Fabry-Perot (FP) interferometry. The force sensing elements are located at the tool tip which is in direct contact with tissue during surgery and the FP cavity length is interrogated by a fiber-optic common-path phase-sensitive optical coherence tomography (OCT) system. We have calibrated the FS's response to axial and lateral forces and conducted experiments to verify that our FS can simultaneously measure both axial and lateral force components. (c) 2012 Optical Society of America
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