| 摘要 |
An insertion device comprises a long-sized insertion portion to be inserted into a subject, a propulsion force generating portion provided on the outer peripheral face of the insertion portion, a rotating portion for rotating the propulsion force generating portion on the longitudinal axis of the insertion portion, an image capturing device for observing the image of the subject, provided at the tip of the insertion portion so as to be rotatable according to the rotation of the propulsion force generating portion, a first electric contact which is connected electrically to the image capturing device and moves rotationally according to the rotation of the propulsion force generating portion provided on the insertion portion, and a second electric contact, on which the first electric contact which moves rotationally according to the rotation of the propulsion force generating portion, is provided slidably, and is connected electrically to the first electric contact.
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