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(11) | EP 2 356 934 A8 |
(12) | CORRECTED EUROPEAN PATENT APPLICATION |
Note: Bibliography reflects the latest situation |
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(54) | Endoscope coping with autoclave sterilization |
(57) An insertion portion 2 of an endoscope 1 is configured by sequentially connecting
a distal end section 20, a bending section 30, and a flexible tube section 60. The
distal end section 20 is composed of a main body 23 and a front end cover 24. Both
end portions of bending rubber 31 covering a bending tube 40 constituting the bending
section 30 are wrapped with threads 32 and 33, respectively. These threads 32 and
33 crush the bending rubber 31 radially inward. Consequently, the inner perimeter
surface of the bending rubber 31 is brought into the state of being intimate contact
with the outer surfaces of the distal end section 20, the bending tube 40, and a joint
tube 52, so as to be fixed watertight. When these threads 32 and 33 are wound around
the bending rubber 31, the winding is carried out with a predetermined amount of force
in order that the thickness of the bending rubber 31 becomes within 40 percent to
95 percent of the thickness of the bending rubber in the natural state and, thereby,
thread-wrapped portions 34 and 35 are formed.
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