Endoscope shape detection device

Surgery – Endoscope – With means for indicating position – depth or condition of...

Reexamination Certificate

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Details

C600S118000, C600S424000

Reexamination Certificate

active

07857753

ABSTRACT:
A source coil drive circuit section of an endoscope shape detection device includes, an oscillator that generates a sine wave and an amplifier that amplifies the sine wave and generates (drives) an alternating magnetic field to source coils through a switch section. The switch section is configured to switch a direct current to an output of the amplifier and supply to the source coils. In the source coil drive circuit section, a direct current resistance value detection section for measuring a direct current resistance value of the source coils by voltage drop when the switch section is supplying the direct current to the source coils is provided.

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Abstract of Japanese Publication No. 2000-175862, published Jun. 27, 2000.
Extended Supplementary European Search Report dated Aug. 5, 2010.

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