Insert part of endoscope
First Claim
Patent Images
1. An insert part of an endoscope comprising:
- a flexible tube; and
a distal end part connected to the distal end of said flexible tube, said distal end part having a larger outer diameter than that of said flexible tube and having a substantially circular cross-sectional configuration that includes at least one flat peripheral portion.
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Abstract
A distal end part is connected to the distal end of a flexible tube, the distal end part having a larger outer diameter than that of the flexible tube. The distal end part has a substantially circular cross-sectional configuration that includes one or a plurality of flat peripheral portions. The distal end part is provided therein with an objective portion of an observation optical system which includes a solid-state image pickup device, for example.
98 Citations
10 Claims
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1. An insert part of an endoscope comprising:
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a flexible tube; and a distal end part connected to the distal end of said flexible tube, said distal end part having a larger outer diameter than that of said flexible tube and having a substantially circular cross-sectional configuration that includes at least one flat peripheral portion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An insert part of an endoscope comprising:
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a flexible tube; a distal end part connected to the distal end of said flexible tube, said distal end part having a larger outer diameter than that of said flexible tube and having a substantially circular cross-sectional configuration that includes at least one flat peripheral portion which is formed in parallel to the axis of said distal end part; and an objective portion of an observation optical system provided in said distal end part, said objective portion including an objective lens and a charge-coupled device (CCD) which converts a light image formed by said objective lens into an electric signal.
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Specification