3-D endoscope using a single CCD camera and pneumatic vibration mechanism

Kamiuchi, Hiroki; Kuwana, Kazunori; Fukuyo, Tsuneo; Yamashita, Hiromasa; Chiba, Tadatoshi; Dohi, Takeyoshi; Masamune, Ken

doi:10.1007/s00464-012-2645-1

Cited by 2 publications

(1 citation statement)

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“…Recently, to inspect the imaging within blood vessel and lactiferous ducts inside animal and human body, ultra-thin medical endoscopes have been developed by shrinking the overall diameter of the devices [ 1 , 2 ]. Conventional endoscopes mostly employ Charge Coupled Device (CCD) and Complementary Metal Oxide Semiconductor (CMOS) imaging sensors for image capture [ 3 , 4 ]. However, the main limitation of video-endoscopes is their diameters.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of Electromagnetically-Driven Tilted Microcoil on Polyimide Capillary Surface for Potential Single-Fiber Endoscope Scanner Application

et al. 2018

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The design and fabrication of a Micro-electromechanical Systems (MEMS)-based tilted microcoil on a polyimide capillary are reported in this paper, proposed for an electromagnetically-driven single-fiber endoscope scanner application. The parameters of the tilted microcoil were optimized by simulation. It is proved that the largest driving force could be achieved when the tilt-angle, the pitch and the coil turns of the designed microcoil were 60°, 80 µm and 20, respectively. The modal simulation of the designed fiber scanner was carried out. The prototypes of the tilted microcoils were fabricated on the surface of polyimide capillary with 1 mm-diameter using our developed cylindrical projection lithography system. The dimensions of the two tilted microcoils were as follows: one was tilt-angle 45°, line width 10 ± 0.2 µm, coil pitch 78.5 ± 0.5 µm, and the other was tilt-angle 60°, line width 10 ± 0.2 µm, coil pitch 81.5 ± 0.5 µm. Finally, a direct mask-less electroplating process was employed to fabricate the copper microcoil with 15 µm thickness on the gold (Au) seed-layer, and the corresponding line width was expanded to 40 µm.

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