JPS6034242Y2 - Endoscope - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an endoscope that can additionally use instruments such as forceps.

In general, endoscopes are used to observe deep parts of body cavities, etc., but for example, when observing the inside of a body cavity, it is also used to perform simple treatment or to collect cells at the same time. Instruments such as forceps (hereinafter referred to as forceps).

) is desired.

In response to the above-mentioned demand, many endoscopes currently on the market have a conduit 1 inside the rigid distal end 3 that guides the forceps, that is, a conduit drawn through the hand control section, as shown in FIG. When the forceps 2 are used, they are inserted into the proximal opening of the conduit 1 and protruded from the tip opening 1a.

However, when the endoscope's original purpose is observation and is used only for that purpose, the conduit is unnecessary, and on the contrary, it causes the flexible part to become thicker and the flexibility of the flexible part to decrease. Remove the exposed conduit and thin the soft part.
An endoscope with sufficient flexibility is desired.

Therefore, in view of the above-mentioned circumstances, the present invention has been designed so that the main body of the endoscope itself is thin and flexible enough to fulfill the purpose of observation, and in addition, it can be used as an additional forceps when it is desired to use forceps during observation. The present invention provides an endoscope that can perform the following functions.

Hereinafter, an endoscope according to the present invention will be described in detail based on embodiments shown in the accompanying drawings.

FIG. 2 is a general view showing an embodiment of an endoscope according to the present invention, and this endoscope 10 has an objective lens arranged in front of an optical fiber bundle 11 for image transmission as shown in FIG. 12 and a rigid tip portion 1 configured to hold an observation window glass or the like.
4, a flexible part 1-5 which is connected to this and includes the image transmission optical fiber bundle 11 and an illumination optical fiber bundle (not shown), and an operating part 17 which is connected to the other end of this flexible part and has an eyepiece 16, etc. These are well known and will not be specifically explained.

In the endoscope having the above configuration, the endoscope according to the present invention is provided with a through hole 14a in the rigid distal end portion 14, which communicates with the side portion and the front portion thereof.

A wire 20 is passed through the through hole 14a, as shown in FIG. 2, with one end extending toward the hand and the other end capable of connecting a conduit 19 for inserting the forceps 18.

The through hole 14a is formed so that its inner diameter is larger than the outer diameter of the conduit 19 and can hold the conduit 19 fixedly when the conduit 19 is fitted and secured as shown in FIG. It is formed.

With the endoscope configured as described above, the wire 20 can be passed through the through hole 14a in advance, held at both ends, and then inserted into the body cavity to perform observation using the same operations as before. can.

If you wish to perform not only observation but also simple treatment or cell collection using forceps, first tie one end of the wire 20 to the tip of the conduit 19 that guides when inserting the forceps. The other end is pulled and the conduit 19 is forcefully drawn into the body cavity, and its distal end is fitted into the through hole 14a formed in the rigid distal end portion 14.

By this operation, the conduit 19 is attached along the main body of the endoscope 10, so that a desired forceps, for example, the forceps 18, can be inserted through the conduit 19 and used.

FIG. 4 shows the main parts of another embodiment of the endoscope according to the present invention, and the endoscope 30 applied to this embodiment has a hood 40 detachably attached to its rigid distal end. is configured to be possible.

This hood 40 has the through hole 14a explained in the above embodiment.
It is provided with an engagement hole 41 that is substantially the same as the one shown in FIG.

Therefore, when the hood 40 having the above-mentioned engagement hole 41 is attached, not only can forceps be additionally used as in the above embodiment, but it can also be done without modifying the endoscope body. be.

By the way, in the above embodiment, a case was described in which the case was applied to an endoscope that does not have a conduit for inserting forceps into the body of the endoscope, but it is applied to an endoscope equipped with the above-mentioned conduit, For example, it can be effective when you want to use another forceps to assist in a simple treatment.

Furthermore, the configuration of the retaining portion that achieves the connection between the conduit and the endoscope main body does not have to be a fitting engagement as seen in the embodiments, and is not limited in any way. Of course.

As is clear from the detailed explanation above, according to the endoscope of the present invention, the main body of the endoscope is made narrow and has many curved parts in the deep part so as to be suitable for the main purpose of observation. It can be configured flexibly so that it can be inserted according to the body cavity, and when forceps are required, the forceps can be inserted without removing the endoscope itself from the body cavity. This makes it possible to provide an endoscope that is extremely advantageous in terms of operation.

[Brief explanation of drawings]

FIG. 1 is a sectional view showing the main parts of a conventional endoscope, FIG. 2 is an overview of an embodiment of the endoscope according to the present invention, FIG. 3 is a sectional view showing the main parts, and The figure is a perspective view showing the main parts of another embodiment. 10.30... Endoscope, 14... Rigid tip part, 14a... Through hole, 18...
Forceps, 19...Conduit, 20---Wire, 40...Hood, 41...Engagement hole.

Claims (1)

[Scope of utility model registration request] In an endoscope having a through hole formed in the distal end component and into which the distal end of a separate conduit used for guiding instruments such as forceps can fit and engage, the endoscope is folded back through the through hole and both ends are at the hand. A wire arranged near the side is provided, one end of the wire communicates with the tip of the conduit, and the other end of the wire is pulled so that the tip of the conduit is guided into the through hole and engaged. Endoscope.