Endoscope bending operation device, endoscope having the bending operation device
An operating device and endoscope technology, applied in the field of endoscopes, can solve the problems of resistance, unstable separation, etc.
Active Publication Date: 2017-02-15
OLYMPUS CORP
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Problems solved by technology
[0016] In addition, in such a bending operation device, it is considered to use a spring member when separating the two movable disks from the fixed disk. However, when the bending operation device is downsized, the distance between the two movable disks has to be reduced. Set to be narrow enough not to contact the fixed plate even in the separated state
Therefore, it is not only difficult to assemble a spring between the two movable plates, but also only a very small spring can be assembled, so there is a problem that the separating action of the two movable plates based on the spring is unstable
[0017] Therefore, in the state where the fixed rotation position of the bending operation knob is released by separating the two movable disks from the fixed disk, there is also a problem that in a structure in which only the spring member is responsible for the separation of the movable disks, When the spring action is weakened, the two movable plates are not sufficiently separated from the fixed plate, frictional resistance is generated when the movable plate contacts the fixed plate, and resistance is given to the rotation of the bending operation knob
Method used
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[0038] Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, the drawings are schematic, and it should be noted that the relationship between the thickness and width of each component, the ratio of the thickness of each component, etc. are different from reality, and of course there are also differences in the relationship and ratio of dimensions between the drawings. part.
[0039] figure 1 It is a diagram showing the appearance of an endoscope having the bending operation device according to the present embodiment in the operation part.
[0040] Such as figure 1 As shown, the endoscope 1 has an insertion part 2 to be inserted into the subject, an operation part 3 provided continuously on the proximal end side of the insertion part 2 in the insertion direction S, and a universal cable 8 extending from the operation part 3 . . The connector 9 provided at the extension end of the universal cable 8 constitutes a main ...
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It has a rotating shaft, a bending operation knob, two movable disks, a fixed disk, a cam member, and an annular member that has a penetration portion that penetrates the slits of the two movable disks, and is connected to the fixed movable disk by fixing the movable disk. The movable plate is integrally movable between the third position and the fourth position, and a stepped portion is formed at the bottom of the penetration portion, and the stepped portion is not aligned with the bottom of the cam member at the fourth position corresponding to the second position of the movable plate. The position of the two movable disks can be changed from the second position to the first position by making contact with the bottom portion at the third position.
Description
technical field [0001] The present invention relates to a bending operation device of an endoscope that is installed in an operation portion of the endoscope to bend a bending portion of an insertion portion of the endoscope, and an endoscope provided with the bending operation device. Background technique [0002] In recent years, endoscopes have been widely used in the medical and industrial fields. An endoscope used in the medical field can observe organs in a body cavity by inserting a long and thin insertion portion into a body cavity of a subject. Furthermore, an endoscope used in the medical field can perform various treatments using a treatment instrument inserted into an insertion channel of a treatment instrument included in the endoscope as needed. [0003] In addition, the endoscope used in the industrial field can damage and corrode the inspected part in the inspected body by inserting the elongated insertion part of the endoscope into the inspected body such a...
Claims
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IPC IPC(8): A61B1/00G02B23/24
CPCA61B1/0052A61B1/05A61B1/0016A61B1/0057
Inventor 星野勇气
Owner OLYMPUS CORP