JPS5931204Y2 - Endoscope used for bronchi, etc. - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an endoscope used for performing a biopsy on the upper surface of a bifurcation such as a bronchus.

For example, when performing a biopsy on the upper surface of an extremely thin tube-shaped bifurcation, such as the upper bifurcation of the bronchus, as shown in Figure 1, the endoscope used for the bronchi is extremely thin, so forceps are used to raise the forceps. The forceps operating wire connected to the operating tool cannot be connected to the tip of the forceps operating tool, and the forceps operating tool cannot be fully erected.

In other words, we would like to connect the forceps operating device operating wire to the tip of the forceps operating device and pull it with sufficient force to make the forceps operating device stand up and bend the forceps at an acute angle, but since the endoscope used for bronchus etc. is extremely thin, The distance between the rotation fulcrum of the forceps operating tool and the connection point of the forceps operating tool operating wire at the tip of the erected forceps operating tool is insufficient within the diameter of the endoscope, and as a result, the forceps operating tool is erected to operate the forceps. It was decided that there would not be enough power to do so.

Furthermore, since the forceps operating tool cannot be operated sufficiently, it is difficult to accurately guide the forceps to the target location.

The present invention is characterized in that it is possible to perform a biopsy of the bifurcation of a small-diameter tube as described above while observing it. The purpose of the present invention is to obtain an endoscope for use in the bronchi, etc., which can be folded back to be in a fixed state, and the forceps can be returned to the field of view of the endoscope and guided to the target site for biopsy and observation.

FIG. 1 shows an embodiment of the present invention, in which an observation window 1, an illumination window 2
The distal end of the side-viewing type, rear-viewing type, or forward-viewing type endoscope main body 3 having a flexible tube part is formed into a bent tube 4 which has a small diameter and can be bent in two. The opening 5 is provided so that the forceps 6 can enter and exit the opening 5, and is communicated with the forceps introduction port 8 of the handle 7.

In addition, the bending tube 4 at the tip is provided with a groove 1 in which, for example, a locking band 9 is fitted so that the original state can be maintained when the tube is folded in two.
Appropriate fixing means such as forming 0 is provided.

It is also a good idea to form a step 11 at the tip so that when folded back, the thickness of the folded part does not differ much from the thickness of the entire endoscope, and the rigid part at the tip of the forceps does not pass through the folded part. However, the soft part should be rounded enough to pass through.

Furthermore, the entire bending tube 4 may not be bendable (or it may be possible to make only the bent portion where it is folded back) as a bendable tube.

In the endoscope having the above configuration, the forceps 6 are inserted in advance through the opening or through the introduction port 8, and the tip of the forceps 6 is housed in the tip opening 5 of the endoscope.

In this state, the bending tube 4 is bent, folded back, and held and fixed by a fixing means such as a holding band.

When inserting this endoscope into the bronchus under the above conditions and performing a biopsy on the upper surface of the upper lobe bifurcation, insert the end of the endoscope slightly beyond the target area as shown in Figure 4. By advancing the forceps 6 through the opening 5 with the observation window 1 positioned near the target site, the biopsy operation can be performed without looking at the target site.

After the cutting operation is completed, the forceps 6 are placed into the opening 5 again and taken out of the body together with the endoscope.

According to the present invention, which has the above-mentioned two functions, it is possible to perform a biopsy from the side opposite to the insertion force of the endoscope at a location such as the upper lobe bifurcation in an extremely narrow bronchus. This greatly improves work efficiency.

Therefore, industrially, it is possible to carry out two inspections and repairs on extremely narrow parts.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram illustrating where the present invention is used, Fig. 2 is an explanatory side view showing an embodiment of the present invention, Fig. 3 is an explanatory side view with the bent portion folded back, and Fig. 4 is an explanatory side view showing an embodiment of the present invention. The figure is an explanatory side view showing the state of use. 1... Observation window, 2... Lighting window, 3...
...Endoscope body 54...Bending portion, 5...
... opening, 6 ... forceps, 7 ... handle, 8 ... forceps introduction port, 9 ... locking band, 10 ... ···groove.

Claims (1)

[Scope of utility model registration request] In a side-viewing endoscope, an opening is provided at the tip, and the tip is made into a bent tube that has a small diameter and can be folded in half, so that when this bent tube is folded in half, it becomes almost the same as the endoscope body. What is claimed is: 1. An endoscope for use in the bronchus, etc., characterized in that a stepped portion is formed and the endoscope is fastened with a holding band so as to maintain the bent state when folded in half, so that forceps can be protruded from the opening.