JPH10328134A - Brush inserting auxiliary implement for endoscope - Google Patents

Abstract

PROBLEM TO BE SOLVED: To attach a brush to a cylindrical body without an error by providing a piston body and the cylindrical body to attach thereto with an index displaying that the bodies makes a pair and providing a brush inserting auxiliary tool an index making a pair with the index of the cylinder body. SOLUTION: The color of a colored index 38 surrounding the tip face of the cylindrical body 21 and the color of the colored cylinder of an operation button are made blue, e.g. and the color of a colored index 58 surrounding the tip face of the cylindrical body 41 and the color of the colored axis body of an operation button are made red, e.g. A cleaning brush 100 is inserted from a brush guiding hole 66 to guide the brush 100 into a connecting pipe 9 to brush-clean inside of the pipe 9. Then, the engage-in part 61 of the brush inserting auxiliary tool 60 is constituted of plastic in blue, e.g. being the same color as the index 38 of an air/water sending switch operation valve 20. On the other hand, the brush inserting auxiliary tool for an absorbing operation valve 40 is constituted to be in red, e.g. being the same color as the index 58 of the valve 40.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a brush insertion aid for an endoscope which is attached to a cylinder body by removing a piston body from a cylinder body provided for switching the communication state of a fluid conduit of the endoscope. About the tool.

[0002]

2. Description of the Related Art Many endoscopes are provided with a fluid conduit such as an air supply / water supply conduit or a suction conduit. The operation unit of the endoscope is provided with a switching operation valve for switching the communication state of the fluid conduit.

[0003] Such a switching operation valve generally has a structure in which a piston body is inserted into a cylinder body to which a fluid conduit is connected so as to be able to advance and retreat in the axial direction. The communication state of the fluid conduit is switched by stopping the piston body at a plurality of predetermined positions by an operation with a fingertip.

Then, in order to brush the inside of the fluid conduit after using the endoscope, a piston body is removed from the cylinder body, and a guide hole for guiding a cleaning brush into the fluid conduit is formed instead. A brush insertion aid can be attached.

[0005]

However, an endoscope generally has an air / water switching valve and a suction valve arranged side by side, and when the pistons are removed from both, two cylinders are formed. It is in a state of being opened alongside the surface of the operation unit.

[0006] For this reason, there is a case where the brush insertion auxiliary tool to be mounted in the cylinder of the air / water switching operation valve is mounted on the cylinder side of the suction operation valve, and is erroneously mounted.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a brush insertion aid for an endoscope in which a brush can be attached without error to a cylinder body in a state where a piston body is removed.

[0008]

In order to achieve the above object, a brush insertion aid for an endoscope according to the present invention is connected to a fluid conduit and arranged on an operating portion with an opening directed outward. An endoscope having a plurality of cylinder bodies and a piston body detachably attached to each of the cylinder bodies for performing a pipeline switching operation, wherein the piston body and the cylinder to which the piston body is attached The piston body is removed from the body provided with an index indicating that the cylinder body is paired, and one of the cylinder bodies is replaced with the piston body to guide the cleaning brush into the fluid conduit. In the endoscope brush insertion aid attached to one end,
An index paired with the index of the cylinder body to which the brush insertion aid is attached is provided.

[0009] A part or all of the brush insertion aid may be a color index formed in the same color as the color of the index of the cylinder to which the brush insertion aid is attached.

The brush insertion aid is fitted into the cylinder when the brush insertion aid is mounted on the cylinder body, and a positioning part positioned outside the cylinder body for regulating the direction of the brush insertion aid. May be included.

[0011] At least one of the fitting portion and the positioning portion may be formed in the same color as the index color of the cylinder body to which the brush insertion aid is attached, and the fitting portion is made of plastic. The positioning portion may be made of rubber.

Further, the positioning portion may have an edge portion which is pressed against a mouth portion of the cylinder body adjacent to the cylinder body to which the brush insertion aid is attached.

[0013]

Embodiments of the present invention will be described with reference to the drawings. FIG. 3 shows an endoscope, in which 1 is an insertion unit, and 2 is an operation unit connected to the base end of the insertion unit 1.

The distal end of the channel tube 3 inserted through the entire length of the insertion section 1 is opened at the distal end surface of the insertion section 1, and serves as an air supply / water supply suction port 4. The base end of the channel tube 3 is connected to the air / water switching operation valve 20 and the suction operation valve 40 arranged in the operation unit 2.

Reference numerals 21 and 22 denote a cylinder body and operation buttons of the air / water switching operation valve 20, respectively. Reference numerals 41 and 42 projecting to the outside are a cylinder body and operation buttons of the suction operation valve 40.

The cylinder body 21 of the air / water switching operation valve 20
Is connected to an air supply tube 6 for supplying air and a water supply tube 7 for supplying water. In addition, a suction tube 8 communicating with a suction device disposed outside is connected to the cylinder body 41 of the suction operation valve 40. Reference numeral 9 denotes a connection pipe arranged to connect the side portions of the two cylinder bodies 21 and 41 to each other.

FIG. 4 shows an enlarged portion of the air / water switching operation valve 20 and the suction operation valve 40. The cylinder bodies 21 and 41 of the air / water switching operation valve 20 and the suction operation valve 40 are
The operation unit 2 is fixed to the operation unit 2 by fixing nuts 23 and 43, and is arranged so as to open to the outer surface of the operation unit 2. 24 and 44 are O-rings for sealing.

Annular colored indices 38, 58 surrounding the outer ends of the cylinder bodies 21, 41 are provided on the outer end faces of the fixing nuts 23, 43, respectively. Air / water switching operation valve 20
The colored indicator 38 on the side is, for example, blue, and the suction operation valve 40
The colored indicator 58 on the side is, for example, red.

The air supply tube 6 and the water supply tube 7 are spaced apart from each other,
1 side. The suction tube 8 is connected to a side surface of the cylinder body 41 of the suction operation valve 40.

The bottoms of the two cylinders 21 and 41 are connected to each other by communication pipes 10 and 11, and one end of the communication pipe 10 is connected to the base end of the channel tube 3.

Cylinder 21 of air / water switching operation valve 20
Inside, a piston body 26 is slidably fitted in the axial direction. The outer end of the piston body 26 projects outward from the opening of the cylinder body 21, and
The operation button 22 is attached by screwing through a.

The mounting seat 22a is screwed to the end of the piston body 26, and the operation button 22 is screwed and mounted on the mounting seat 22a.

Numeral 34 indicates that the piston body 26 is
The stopper is a stopper for preventing the nut from coming out of the housing, and is detachably locked to the fixing nut 23 by an integrally formed rubber cover 35.

A compression coil spring 36 is interposed between the operation button 22 and the stopper 34, whereby the piston 26 is urged in a direction to protrude from the cylinder 21. One end of the compression coil spring 36 is received by a mounting seat 22 a screwed to the piston body 26.

In FIG. 4, the right half of the air / water switching operation valve 20 is in a first predetermined position in which the piston 26 is completely pushed out by a compression coil spring 36 until the piston 26 hits a stopper 34. The left half shows a state where the piston body 26 is at the second predetermined position where it is completely pushed into the cylinder body 21.

The vent hole 31 formed at the axial position of the piston body 26 is open to the outside at a leak hole 32 formed at the center of the protruding end of the operation button 22. Vent 31
A communication hole 27 communicating with the connection pipe 9 and a communication hole 25 communicating with the air supply tube 6 in a standby state shown in the right half are formed.

The operation button 22 is provided with a colored cylinder 37 formed of a colored plastic material at a portion surrounding the leak hole 32 so that an end face thereof can be seen from the outside. The colored cylinder 37 is clamped and fixed by the mounting seat 22a and the operation button 22.

The color of the colored cylinder 37 is
The blue color is the same as the color of the colored index 38 surrounding the end face of. Therefore, when the endoscope is used, when the piston body 26 is detached from the cylinder body 21, cleaned and disinfected, and then reattached, the fitting relationship can be understood, and erroneous mounting can be prevented.

A check valve 28 made of a resilient rubber material is disposed in a recess formed in the communication hole 27 communicating with the connection pipe 9.
Blocks fluid flow into the interior.

On the bottom side of the piston body 26, a water passage hole 33 is formed at an axial position, and is opened on the bottom surface of the piston body 26. Then, as shown in the left half, a communication hole 29 that communicates with the water supply tube 7 when the piston body 26 is fully pushed into the cylinder body 21.
Are drilled. Further, a plurality of O-rings 30 for sealing are mounted on the outer peripheral portion of the piston body 26 as necessary.

In the standby state where no operation is performed, the air supply / water supply switching operation valve 20 configured as described above allows the air supplied from the air supply tube 6 to pass through the ventilation hole 31 and to be released from the leak hole 32 to the atmosphere. Is done.

When the leak hole 32 is closed with a fingertip, the air sent from the air supply tube 6 into the air hole 31 is
The gas is sent out to the channel tube 3 through the cylinder 41 of the suction operation valve 40 through the connection pipe 9, and air is supplied from the air supply / water supply suction port 4.

Then, as shown in the left half, when the operation button 22 is fully pushed while the leak hole 32 is closed with a fingertip, water sent from the water supply tube 7 passes through the water passage hole 33 and is channeled. The water is sent out to the tube 3 and water is supplied from the air / water supply / suction port 4.

A piston body 46 is also inserted into the cylinder body 41 on the suction operation valve 40 side so as to be able to advance and retreat in the axial direction, and an operation button similar to the air / water switching operation valve 20 side is provided on the head thereof. 42, a mounting seat 42a, a compression coil spring 56, a stopper 54, and a rubber cover 55 are attached, and are detachable from the cylinder body 41.

In the suction operation valve 40, as shown in the right half of the center line, the suction communication hole 45 formed in the piston body 46 is closed by the inner wall surface of the cylinder body 41 in the standby state. No suction from the channel tube 3 is performed. Reference numeral 48 denotes a sealing material provided around the suction communication hole 45.

Then, as shown in the left half of the center line, when the operation button 42 is pressed, the suction tube 8 and the channel tube 3 communicate with each other through the suction communication hole 45,
Suction is performed from the channel tube 3.

The numeral 49 indicates that the piston 46 is the cylinder 41
The guide pin engages with a guide groove 47 formed in the axial direction on the inner wall portion of the cylinder body 41 so as not to rotate inside.

The operation button 42 of the suction operation valve 40 is provided with a colored shaft body 57 formed of a colored plastic material at the center axis position, so that the end surface thereof can be seen from the outside. .

The color of the colored shaft 57 is red, which is the same as the color of the colored indicator 58 surrounding the end face of the cylinder 41. Therefore, when the endoscope is used, when the piston body 46 is removed from the cylinder body 41, cleaned and disinfected, and then reattached, the fitting relationship can be understood, and erroneous mounting can be prevented.

FIG. 1 shows that the pistons 26 and 46 are removed from the cylinders 21 and 41 of the air / water switching operation valve 20 and the suction operation valve 40 after the use of the endoscope.
1 shows a state in which a brush insertion aid 60 for inserting the cleaning brush 100 into the fluid conduit connected to 1 is attached to the cylinder 21 on the side of the air / water switching valve 20. FIG. 2 is a plan view thereof.

The brush insertion aid 60 is inserted into the cylinder 21 of the air / water switching operation valve 20 to guide the cleaning brush 100 into the connection pipe 9, and is fitted into the cylinder 21. A plastic fitting portion 61 and a rubber positioning portion 62 located outside the cylinder body 21 for regulating the direction of the brush insertion aid 60.
And are integrally connected. Reference numeral 66 denotes a brush guide hole for guiding the cleaning brush 100, and is formed so as to extend from the positioning portion 62 to the fitting portion 61.

The fitting portion 61 and the positioning portion 62 are separated from each other by a first flange 63 protruding from the fitting portion 61 at an interval.
And the second flange portion 64 regulate the relative movement in the axial direction, and the relative movement is prevented by the rotation stopping portion 65 including the cutout formed on the fitting portion 61 and the portion engaged therewith from the positioning portion 62 side. Rotation is regulated and integrated.

Then, the positioning edge 67 formed on the positioning portion 62 is arranged along the outer periphery of the fixed nut 43 of the suction operation valve 40, so that the brush insertion auxiliary tool 60 for the cylinder body 21 of the air / water switching operation valve 20 can be moved. The orientation is regulated, and in this state, the fitting portion 61 is inserted as shown in FIG.
The brush guide hole 66 is set at a predetermined position communicating with the connection pipe 9 by fitting the cylinder guide 21 into the cylinder body 21.

In this state, the positioning edge 67 is pressed against the outer edge of the fixed nut 43. Therefore, the brush insertion assisting tool 60 moves the positioning portion 6
It is fixed in a stable state by the elasticity of 2.

As a result, by inserting the cleaning brush 100 from the brush guide hole 66, the cleaning brush 100 is guided into the connecting pipe 9, and the inside of the connecting pipe 9 can be brushed and cleaned. In addition, the brush insertion aid 60 does not easily come off the cylinder body 21 during such an operation.

The brush insertion aid 6 constructed as described above
The zero fitting portion 61 is formed of blue plastic that is the same color as the colored indicator 38 of the air / water switching operation valve 20. Therefore, by confirming the color, the compatibility with the cylinder bodies 21 and 41 to be attached can be understood, and there is a possibility that the brush insertion aid 60 for the air / water switching operation valve 20 is erroneously attached to the suction operation valve 40 side. Absent.

Although not shown, the brush insertion aid for the suction operation valve 40 includes a colored indicator 58 of the suction operation valve 40.
It is formed in the same color as red, and there is no possibility of being erroneously attached to the air / water switching operation valve 20 side.

The brush insertion aid 60 of the present invention is not limited to the above embodiment. For example, the fluid conduit through which the cleaning brush 100 is guided may be a pipe other than the connection pipe 9. Good.

Also, one or both of the fitting portion 61 and the positioning portion 62 may be colored as described above, or a colored indicator or the like may be attached separately. Further, the index may be displayed by a pattern or a line other than the color.

[0050]

According to the present invention, a brush insertion assisting tool having an index paired with an index provided at an entrance portion of a cylinder body of a conduit switching operation device of an endoscope may be attached to the cylinder body. Therefore, the fitting relationship of the brush insertion aid to the pipeline switching operation device becomes clear, and erroneous mounting can be prevented.

[Brief description of the drawings]

FIG. 1 is a side sectional view showing a state in which a brush insertion aid according to an embodiment of the present invention is attached to a cylinder body.

FIG. 2 is a plan view showing a state in which the brush insertion aid according to the embodiment of the present invention is attached to a cylinder body.

FIG. 3 is an overall schematic diagram of the endoscope according to the embodiment of the present invention.

FIG. 4 is a side sectional view of the fluid pipeline switching device according to the embodiment of the present invention.

[Explanation of symbols]

 Reference Signs List 20 air / water switching operation valve 21 cylinder body 22 operation button 23 fixing nut 37 colored cylinder 38 colored indicator 40 suction operation valve 57 colored shaft body 58 colored indicator 60 brush insertion auxiliary tool 61 fitting part 62 positioning part 66 brush guide hole 67 Positioning edge

Claims (6)

[Claims] 1. A plurality of cylinders connected to a fluid conduit and arranged on an operation unit with openings facing outward, and removably attached to each of the cylinders for performing a conduit switching operation. An endoscope having a piston body, wherein the piston body is provided with an index indicating that the piston body and the cylinder body to which the piston body is attached are paired, removing the piston body, An endoscope brush insertion aid attached to one of the cylinder bodies instead of the piston body for guiding a cleaning brush into the fluid conduit, wherein the cylinder body to which the brush insertion aid is attached A brush insertion aid for an endoscope, provided with an index paired with the index of (1). 2. A part or all of said brush insertion aid is
2. A brush insertion aid for an endoscope according to claim 1, wherein the color index is formed in the same color as the color of the index of the cylinder body to which the brush insertion aid is attached. 3. A fitting portion for fitting the brush insertion aid into the cylinder when the brush insertion aid is attached to the cylinder body, and a positioning part positioned outside the cylinder body for regulating the direction of the brush insertion aid. The endoscope brush insertion aid according to claim 1 or 2, further comprising a part. 4. A brush insertion aid for an endoscope according to claim 3, wherein at least one of said fitting portion and said positioning portion is formed in the same color as an index color of a cylinder body to which said brush insertion aid is attached. . 5. The fitting portion is made of plastic,
5. The endoscope brush insertion aid according to claim 3, wherein the positioning portion is made of rubber. 6. The positioning portion has an edge portion which is pressed against a mouth portion of the cylinder body adjacent to the cylinder body to which the brush insertion aid is attached.
6. The endoscope brush insertion aid according to 4 or 5.