US 5,507,717 AGranted

Device for bending the insertion section of an endoscope

AssigneeOlympus Optical Co., Ltd.

InventorsYasuhito Kura, Takayuki Yokota, Koji Nakamoto, Masaaki Nakazawa, Hisao Yabe, Hideo Ito

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Abstract

A device to be incorporated in the housing of the operation section of an endoscope, for operating a bending mechanism incorporated in the insertion section of the endoscope, comprises an operation shaft and a holder. The operation shaft has a distal end connected to the bending mechanism and a proximal end portion projecting from an operation section of the endoscope. The holder is mounted on a distal end portion of the operation shaft and comprises an upper and lower cover which are joined together and which define an outside surface and a hollow cylindrical space around the operation shaft. The upper and lower covers abut each other to form an interface on the outside surface.

Claims23

Dependent claims

A device to be incorporated in a housing of an operation section of an endoscope, for operating a bending mechanism incorporated in an insertion section of the endoscope, said device comprising:

an operation shaft having:
a distal end portion connected to the bending mechanism, and
a proximal end portion projecting from the operation section of the endoscope;
and
holding means mounted on said distal end portion of said operation shaft for causing rotation of said operation shaft, and said holding means comprising a plurality of covers which are joined together to form a hollow cylindrical member which forms a space around said operation shaft;
and
wherein said plurality of covers comprise an upper cover and a lower cover which form an outside surface of said hollow cylindrical member of said holding means, and wherein said upper and lower covers abut each other to form an interface on said outside surface.

4 more elements

Dependencies are inferred from the claim text.