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Endoscope insertion auxiliary device

An auxiliary device and endoscope technology, which is applied to endoscopes, telescopes, medical science, etc., can solve the problems of complex structure, insufficient contact, and inability to insert with ordinary endoscopes.

Inactive Publication Date: 2007-03-21
OLYMPUS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the above-mentioned first prior example, there is a disadvantage that it cannot be used for the insertion of an ordinary endoscope whose insertion part is linear.
Moreover, the structure of the second prior example is complicated and the cost is high
[0006] In addition, in the second prior example, since the outer diameter cannot be changed, the contact with the body cavity that can have various diameters is insufficient, and the propulsion force may be insufficient during rotation.
[0007] In addition, in the second prior example, when pulling out, the unevenness formed by the helical member may become an obstacle to smooth pulling out.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0156] Embodiment 1 of the present invention will be described with reference to FIGS. 1 to 16 .

[0157] As shown in FIG. 1 , the endoscope apparatus 1 provided with Embodiment 1 has: an endoscope 2 for performing endoscopic examination, etc.; The endoscope insertion assisting device 3 of Example 1; the light source device 4 for supplying illumination light to the endoscope 2; the camera control unit (abbreviated as CCU) 5 for performing signal processing for the imaging element built in the endoscope 2; And the monitor 6, which receives the video signal output from the CCU 5, displays the endoscopic image captured by the imaging element.

[0158]The endoscope 2 has a flexible and elongated insertion portion 7 inserted into a body cavity or the like; an operation portion 8 provided at the rear end of the insertion portion 7 ; and a cable portion 9 extending from the side of the operation portion 8 . Here, the end of the cable portion 9 is connected to the light source device...

Embodiment 2

[0206] Next, Embodiment 2 of the present invention will be described.

[0207] FIG. 17 schematically shows an endoscope insertion assisting device 3H according to Embodiment 2 of the present invention. In this endoscope insertion assisting device 3H, for example, a rotation drive device 60 is provided on the rear end side of the tube 16 .

[0208] The rotation driving device 60 has a gear 61a attached to the rear end of the pipe 16, and a gear 61b meshing with the gear 61a and connected to a motor 63 via a torque limiter 62 serving as rotation limiting means.

[0209] Furthermore, the spiral structure 18 provided on the outer peripheral surface of the tube 16 is constituted by a hollow tube. The front end of the hollow tube is closed, and the rear end is connected to a compressor 64 .

[0210] Furthermore, the motor 63 and the compressor 64 are connected to a control unit 65 , and the control unit 65 is connected to an operation unit 66 . By operating the operation unit 66 ...

Embodiment 3

[0273] Next, Embodiment 3 of the present invention will be described. Fig. 35 schematically shows an endoscope insertion assisting device 3L according to a third embodiment of the present invention. The endoscope insertion assisting device 3L is attached to the outer peripheral surface of the endoscope 2 for assisting insertion.

[0274]In the endoscope insertion assisting devices 3 to 3K described in Embodiments 1 and 2, a hollow portion for inserting the insertion portion 7 of the endoscope 2 is provided, but the insertion portion 7 that can be inserted into the hollow portion is formed for the thin diameter. In this way, observation is actually possible, but sometimes it is limited to an endoscope that does not have a channel for inserting a treatment tool, and in this case, treatment cannot be performed.

[0275] Therefore, this embodiment can also be applied to the endoscope 2 having the channel 91 through which the treatment instrument can be inserted.

[0276] Theref...

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Abstract

An endoscope insertion auxiliary device which has a flexible tube whose front end is provided with a front end member having an outer diameter equal to or greater than the outer diameter of the tube. The outer peripheral surface of the tube is provided with a spiral structure.

Description

technical field [0001] The present invention relates to an endoscope insertion assisting device using a helical structure to assist endoscope insertion. Background technique [0002] In recent years, endoscopes have been widely used in the medical and industrial fields. When inserting the endoscope into a curved part such as a body cavity, an endoscope insertion assisting device may be used so that the endoscope can be inserted smoothly. [0003] For example, Japanese Patent Application Laid-Open No. 54-78884 as a first precedent discloses a fiber optic endoscope in which the insertion part itself is formed into a helical shape, and the insertion is easy by twisting on the hand side. In the large intestine. [0004] In addition, Japanese Patent Application Laid-Open No. 51-73884, which is a second precedent, discloses an endoscope insertion assisting device in which a cylinder and a wheel (ring) are connected at multiple places by rivets, and a helical ring is provided on ...

Claims

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Application Information

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IPC IPC(8): A61B1/00G02B23/24
CPCA61B1/0016A61B1/00148
Inventor 田中慎介泷泽宽伸青木勳河野宏尚
Owner OLYMPUS CORP
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