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Endoscope

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Endoscope

Details

Inventors: Takada, Masazumi;
Assignee:
Primary Examiner:
Assistant Examiner:
Attorney, Agent or Firm:

This invention relates to an endoscope in which an endless belt is guided around via the interior and the exterior of an insertion tube of the endoscope and this endless belt is turned in contact with the body cavity wall surface, thereby enabling to insert the endoscope quickly. The endless belt is guided around between a hole formed at the forward end portion of the insertion tube and a control portion at the proximal end of the insertion tube in a manner to be partially exposed to the outside of the insertion tube, while, a drive means for turning the endless belt is provided in the control portion.

DETAILED DESCRIPTION The present invention has as its object the provision of an endoscope which can be readily inserted for a short period of time without giving great pains to a patient.
To achieve the above-described object, the present invention contemplates that at least one endless belt is guided around via the interior and the exterior of an insertion tube and a head in such a manner that the endless belt exposed from the outer surfaces of the insertion tube and the head is contacted with the outer surface of the insertion tube, and a drive means for turning this endless belt is provided at the proximal end of the insertion tube, to thereby lessen the diameters of the insertion tube and the head.

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