Endoscope with improved flexible insertion tube

Details Endoscope with improved flexible insertion tube Endoscope with improved flexible insertion tube

A - Human Necessities

61

B

A61B 1/005 (2006.01) A61B 1/12 (2006.01) A61L 29/06 (2006.01) A61L 29/08 (2006.01) G02B 23/24 (2006.01)

Patent

CA 2220667

In a flexible endoscope having a flexible insertion tube comprising a tubular, biocompatible elastomeric outer covering thereabout which encloses an interior space, the improvement according to the present invention comprises a vapor barrier between the outer covering and the interior space. Thus, vapor, such as hydrogen peroxide or other sterilants, passing through the outer covering from an atmosphere thereabout is prevented from entering the interior space by the vapor barrier. Further, the vapor is thus prevented from interacting with substances, such as lubricants, within the interior space to produce agents harmful to the elastomeric covering.

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