JPH0446723Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to an endoscope having a structure in which a suction tube connecting port and a suction channel are connected in the operating section.

[Conventional technology]

In many conventional endoscopes, suction is performed through a channel formed inside the endoscope through which a treatment instrument is inserted. For example, in the device disclosed in Japanese Patent Application Laid-open No. 59-67930, a connection port for connecting a suction tube is provided in the operating section separately from the mouth of the channel, and the channel and the connection port are connected in the operating section. are communicated via a connecting pipe. Further, the mouth main body forming the mouth of the channel is fixed to the casing of the operating section using a reinforcing member.
One end of the connecting pipe is connected to the reinforcing member, and the other end is connected to the connecting port body. moreover,
Each end of the connecting pipe is attached to the corresponding connection hole by being inserted through ring packing.

[Problem that the invention attempts to solve]

However, in the above method of assembling the connecting pipe, each end of the connecting pipe is attached by simply inserting it into its corresponding connection hole through ring packing, so it is easy to come off during assembly.
The drawback was that it was extremely difficult to work with.

The present invention was developed in view of the above-mentioned problems, and its purpose is to ensure that the connecting pipe that communicates the tube connecting pipe and the suction channel does not come off easily during assembly, and has good assembly workability. The goal is to provide a scope.

[Means and actions for solving problems]

In order to solve this problem, the present invention provides a tube connecting tube for connecting the suction tube to the operation part of the endoscope, and also provides a mouth body in the operation part that communicates with the channel in the endoscope. The mouth main body is fitted and fixed by a reinforcing member fixed to the casing of the operation part, and this reinforcing member does not have a connection hole that communicates with the inside of the mouth main body. One end of the connecting pipe is attached, and the other end of the connecting pipe is attached to the tube connecting pipe, and at least one end of the connecting pipe is held by a fixing member, and this fixing member is attached to at least the reinforcing member and the tube connecting pipe. It is fixed to one side.

Since the fixing member for holding the connecting pipe is used, the connecting pipe does not come off during assembly, and the assembly can be easily performed.

〔Example〕

1 to 3 show a first embodiment of the present invention.

FIG. 2 shows the vicinity of the operating section 1 of the bronchial endoscope, and the main body 2 of the operating section 1 is provided with an eyepiece section 3. As shown in FIG. Further, an insertion section 5 made of a long flexible tube is connected to the main body 2 via a grip section 4. Further, a bending operation lever 7 is provided on one side wall of the synthetic resin casing 6 that forms the main body 2 of the operation section 1 . The other side wall of the casing 6 is provided with a tube connection pipe 9 serving as a connection port for connecting the light guide cable 8 and a suction tube (not shown). In addition,
The suction tube communicates with a suction source (not shown), such as a suction pump.

First and second circular openings are provided in the left and right side walls of the casing 6 so as to be positioned opposite to each other, and these openings are closed by attaching covers 11 and 12, respectively. The above tube connection pipe 9
As shown in FIG. 1, the cover 11 is screwed through one of the covers 11 and fixed.

On the other hand, a channel member is inserted through the operating section 1 and the insertion section 5 of the endoscope to form a channel through which a treatment instrument is inserted. This channel member is composed of a tube 13 that is inserted through the grip portion 4 and the insertion portion 5, and a mouth body 14 that is connected to the proximal end of the tube 13. The mouth main body 14 is made of, for example, a cylindrical member made of stainless steel, and is fitted into a fitting hole 15 formed diagonally through the side wall of the casing 6 and fixed by adhesive. The outer end of the mouth main body 14 projects outward from the operating section 1 to form an insertion port 16. Also. The inner end of the mouth main body 14 is formed to have a smaller diameter than the other end, and the tube 13 is connected to this small diameter end.

Furthermore, as shown in FIG.
A reinforcing member 17 made of synthetic resin is fitted from the inside of the casing 6, and this reinforcing member 17 is adhesively fixed to the inner wall of the casing 6. That is, the mouth main body 14 is reinforced by the reinforcing member 17 by being fused with the reinforcing member 17. Further, a through hole 18 is formed in the side wall of the mouth main body 14 to which the reinforcing member 17 is joined. This hole 1
8, the reinforcing member 17 has its through hole 18.
A first connection hole 19 communicating with is formed.
As shown in FIG. 1, the outer opening of the first connecting hole 17 is formed with a step hole 21 formed in two steps with a larger diameter on the outer side.

A second connection hole 22 is formed at the inner end of the tube connection pipe 9 in correspondence with this step hole 21 . Then, the first connection hole 1 of the reinforcing member 17
9 and the second connecting hole 22 of the tube connecting pipe 9, each end of a two-dimensionally bent connecting pipe 23 is inserted, and fixing rings 24, 25 are fitted and fixed on the outer periphery of each end. The fitted ring packings 26 and 27 are fitted and attached. Furthermore, a fixing ring 2 attached to the first connection hole 19 side
A part of the reinforcing member 17 is in contact with the outer surface of the reinforcing member 17 .
The fixing ring 24 is held down by a fixing member 32 that is attached and fixed to the reinforcing member 17 with screws 31. This fixing member 32 is formed by bending a plate-shaped body into an L-shape, and one end piece 33 of the fixing member 32 is pressed against the side surface of the reinforcing member 17 and fastened with the screw 31 described above. Further, as shown in FIG. 3, a notch hole 35 is formed in the holding piece portion 34 which is the other end piece of the fixing member 32.
The fixing ring 24 is held down while the connecting pipe 23 is inserted into it. In other words, this fixing member 32 holds the connecting pipe 23 and the reinforcing member 17
It is designed to be fixed to

Therefore, one end of the connecting pipe 23 is connected to the reinforcing member 1.
Not only is it attached to the first connection hole 19 of 7,
Since it is fixed by the fixing member 32, the connecting pipe 23 will not easily come off when these are assembled. Therefore, assembly can be performed easily and reliably.

4 and 5 show a second embodiment of the present invention.

In this embodiment, the fixing ring 24 itself is integrated with the fixing member 32, and the rest is the same as the first embodiment.

6 and 7 show a third embodiment of the present invention.

In this embodiment, the fixing rings 24 and 25 are formed integrally with the connecting pipe 23 in the structure of the first embodiment. In this way, fixing ring 2
The fitting and fixing work of steps 4 and 25 is unnecessary, and the structure is inexpensive.

8 and 9 show a fourth embodiment of the present invention.

This embodiment is different from the reinforcing member 1 in the first embodiment.
The fixing ring 24 on the 7 side is not fixed to the connecting pipe 23, but is simply fitted. Then, the fixing ring 24 is attached to the reinforcing member 1 by the fixing member 32.
7 and then inserting one end of the connecting pipe 23 into the hole of the fixing ring 24 to assemble.

10 and 11 show a fifth embodiment of the present invention.

In this embodiment, the fixing member 32 is provided on the tube connecting pipe 9 side. That is, the fixing member 32 of this embodiment is attached to the tube connecting pipe 9 with a screw 40, and is adapted to receive and press the fixing ring 25.

[Effect of idea]

As explained above, according to the present invention, it is possible to easily and reliably assemble the connecting pipe that connects the tube connecting pipe to the mouth of the channel.

[Brief explanation of the drawing]

FIG. 2 is a perspective view of the vicinity of the operating section of an endoscope according to the first embodiment of the present invention, FIG. 1 is a sectional view of the connecting section in the same embodiment, and FIG. 4 is a sectional view of the connecting portion in the second embodiment, FIG. 5 is a sectional view taken along line B-B in FIG. 4, and FIG. 6 is a sectional view of the connection in the third embodiment. FIG. 7 is a cross-sectional view taken along the line C-C in FIG. 6, FIG. 8 is a cross-sectional view of the connecting portion in the fourth embodiment, and FIG. 9 is a cross-sectional view taken along the line D-D in FIG. 10 is a sectional view of the connecting portion in the fifth embodiment,
FIG. 11 is a sectional view taken along the line E--E in FIG. 10. 1... Operating unit, 2... Main body, 6... Casing, 9... Tube connection pipe, 14... Mouth main body,
15... Fitting hole, 17... Reinforcing member, 19...
First connection hole, 22... Second connection hole, 23...
Connecting pipe, 24... fixing ring, 32... fixing member.

Claims (1)

[Scope of utility model registration request] A tube connecting tube provided in the operating section and connecting the suction tube; a mouth main body also provided in the operating section and communicating with the channel in the endoscope; a reinforcing member fixed to the casing of the operating section and having a connecting hole communicating into the mouth main body; one end of the reinforcing member attached to the connecting hole and the other end attached to the tube connecting pipe; An endoscope comprising: a connecting pipe that communicates with the mouth body; and a fixing member that holds at least one end of the connecting pipe and is fixed to at least one of the reinforcing member and the tube connecting pipe. .