Development and evaluation of a light-emitting diode endoscopic light source

Clancy, Neil T.; Li, Rui; Rogers, Kevin M.; Driscoll, Paul D.; Excel, Peter; Yandle, Ron; Hanna, George B.; Copner, Nigel; Elson, Daniel S.

doi:10.1117/12.909331

Cited by 17 publications

(11 citation statements)

References 8 publications

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“…The majority of modern surgical lighting illuminates from an external source, a dissecting microscope, into a cavity or is mounted on a surgical instrument, such as retractors, endoscopes, orthoscopic tools, and suction tubes [1][2][3][4][5][6]. However, such conventional implements and instruments are unable to provide sufficient lighting during various surgical procedures.…”

Section: Introductionmentioning

confidence: 99%

A Soft, Biocompatible Magnetic Field Enabled Wireless Surgical Lighting Patty for Neurosurgery

et al. 2020

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General surgical procedures are subject to low-light conditions or a narrow angle of view, and such limitations in light limit visibility and complicate the given surgical procedure. Conventional lighted surgical tools rely on an external light source, which may be oriented into a cavity or mounted on a surgical instrument such as retractor, endoscopes, or suction tubes. However, such conventional lighted instruments do not provide adequate lighting during various surgical procedures. Here, we present a soft, miniaturized magnetic-enabled wireless surgical lighting patty. Specifically, the proposed surgical lighting patty that can be temporarily implanted into a cavity or surgical corridor provides lighting to the surgical subject and manages fluids in a surgical field. The surgical lighting patty is a multilayer patty, two outer layers of the lighted surgical patty and the center lighted layer. A reed switch in the central layer can activate the power supply in response to a magnet to emit the light from the light source. The result allows a dramatically simplified wireless operation. Moreover, it can provide various wavelengths of light to a surgical field for purposes such as illuminating the surgeon’s field of vision, exciting dyes, and sterilizing surgical fields.

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Section: Introductionmentioning

confidence: 99%

A Soft, Biocompatible Magnetic Field Enabled Wireless Surgical Lighting Patty for Neurosurgery

et al. 2020

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“…Ankur Gogoi is also sources. In this context, an LED [9], [3], [10], [11], [12], [13], which has recently become a standard light source for endoscopic diagnosis and surgery, despite the inherent advantages of longer lifetime, higher efficiency and lower power consumption, is unfortunately incoherent and therefore needs a fiber bundle [14], [15] for efficient light coupling because of the large LED dispersion angle. Such fiber bundle based light delivery structures typically possess an outer diameter of several millimeters [16], which ultimately overshadows the advantages of miniature CMOS cameras.…”

Section: Introductionmentioning

confidence: 99%

Coherent Narrow-Band Light Source for Miniature Endoscopes

Chen¹,

Gogoi

Lee³

et al. 2019

IEEE J. Select. Topics Quantum Electron.

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In this work, we report the successful implementation of a coherent narrow-band light source for miniature endoscopy applications. A RGB laser module that provides much higher luminosity than traditional incoherent white light sources is used for illumination, taking advantages of the laser light's high spatial coherence for efficient light coupling. Notably, the narrow spectral band of the laser light sources also enables spectrally resolved imaging, to distinguish certain biological tissues or components. A monochrome CMOS camera is employed to synchronize with the time lapsed RGB laser module illumination for color image acquisition and reconstruction, which provides better spatial resolution than a color CMOS camera of comparable pixel number, in addition to spectral resolving.

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“…Our design combines light from divergent sources to provide illumination matched to the numerical aperture of the endoscopic light guide. 2 We enclosed the optics, as well as the circuitry for thermal management and electronic drive, in a case to enable Continued on next page 10.1117/2.1201308.005103 Page 2/3…”

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confidence: 99%