JPH0984756A - Endoscopic device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an endoscopic device which can easily position the cleaner guide passage of a cleaner guide member to a pipe line within a cylinder without forming irregularities on the cylinder periphery of an endoscope operation part, and has satisfactory working property of cleaning. SOLUTION: The operation part 2 of an endoscope 1 has an air supply and water supply control valve and a suction control valve, and when an air supply and water supply piston and 8 suction piston are removed, an air supply and water supply cylinder 21 and a suction cylinder 22 are opened, and the rear end of an insert part side air supply pipe line 23 and the rear end of an insert part side suction pipe line 36 are operand in the cylinder inner part. A cleaner guide member 40 having a cleaner guide passage 39 formed on the air supply and water supply cylinder 21 in order to clean the insert part side air supply pipe line 23 by a cleaner has a positioning shaft 41, and the positioning shaft 41 is fitted or gently fitted and installed to the suction cylinder 22, thereby circumferentially positioning the cleaner guide passage 39, so that the cleaner guide passage 39 can surely communicate with the opening on the rear end of the insert part side air supply pipe line 23.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an endoscope apparatus including an endoscope for inserting an insertion portion for observation and a cleaning aid for keeping the conduit of the endoscope clean. .

[0002]

2. Description of the Related Art Generally, endoscopes are provided with various conduits for air supply, water supply, suction, etc., and control of air supply, water supply, suction, etc., via operation buttons, etc. provided on an operating section. It can be performed. It is necessary to clean these conduits after they are used for endoscopy.For this reason, in the conventional endoscope system, the piston that forms the operation button is removed from the cylinder and is elongated and flexible inside the cylinder. It is known to clean a variety of pipe lines after use by inserting a flexible pipe line cleaning tool.

Further, there is known one using a cleaning tool guide member having a cleaning tool guide passage for smoothly guiding the cleaning tool to the openings of various pipelines in the cylinder. As the cleaning tool guide member, there are those disclosed in Japanese Patent Publication No. 2-54085 and Japanese Patent Laid-Open No. 5-228107.

In Japanese Patent Publication No. 2-54085, a positioning groove is provided on the outer opening side of a cylinder for mounting the vicinity of the head of the cleaning aid, and the side wall near the head of the cleaning aid is fitted with the positioning groove. There is shown a configuration in which a positioning protrusion for performing the operation is provided.

[0005]

When a positioning groove is provided on the outer opening side of the cylinder, fingers (or gloves) are caught at the corners of the groove when the piston is removed from the cylinder and the area around the cylinder is washed after use. Once damaged,
There may be a problem that the bottom of the groove cannot be cleaned well. For this reason, it is desirable to make the outside of the cylinder opening as flat as possible without unevenness.

The present invention has been made in view of the above circumstances, and facilitates the cleaning tool guide passage of the cleaning tool guide member and the pipeline in the cylinder without forming irregularities around the cylinder of the endoscope operation section. It is an object of the present invention to provide an endoscopic device that can be aligned with the above and has good cleaning workability.

[0007]

A cleaning tool guide having a cleaning valve having a switching valve formed of a cylinder and a piston detachably attached to the cylinder, and having a cleaning tool guide passage in the cylinder instead of the piston during cleaning. In an endoscope device in which a member is mounted so that a cleaning tool can be inserted into a conduit opening in the cylinder, a positioning means other than the cylinder is used as a positioning means for determining a communication position between the cleaning tool guide passage and the conduit. By providing the cleaning tool guide member with means for contacting the operation portion constituent elements, the positioning of the cleaning tool guide passage and the pipeline opening in the cylinder in the rotational direction can be reliably performed.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. (First Embodiment) FIGS. 1 to 8 relate to a first embodiment of the present invention, and FIG. 1 is an external view showing a configuration of an endoscope,
FIG. 2 is an explanatory view showing the piping of the air supply / water supply / suction conduit inside the endoscope, FIG. 3 is a plan view of the cleaning tool guide member of the present embodiment, and FIG. 4 is the cleaning tool guide of the present embodiment. Sectional view showing a state in which the member is attached to the cylinder of the endoscope operation section (I1 I2 I3 I4 I5 I6 I7 I8 sectional view of FIG. 3), FIG.
4 is a view of the cleaning tool guide passage of the cleaning tool guide member according to the present embodiment as seen from the direction of arrow A in FIG. 4, FIG. 6 is a detailed explanatory view of portion B of FIG. 4, and FIG. 7 is a cleaning tool guide passage and a cylinder. FIG. 8 is an external view of the cleaning tool used in the present embodiment, in which a pipe line that opens inside is viewed from the direction of arrow C.

As shown in FIG. 1, an endoscope 1 has a universal cord 4 formed of a flexible tube for connecting an operating portion 2 and a connector portion 3, and an endoscope extending from the operating portion 2 and inserted into, for example, a body cavity. And an insertion portion 5 formed of an elongated flexible tube.

The insertion portion 5 is provided with a hard tip portion 6, a bendable bending portion 7 and a soft portion 8 which are continuous from the front end side. The operation portion 2 is located at the rear end of the insertion portion 5. Gripping part 9
In the vicinity thereof, a UD angle knob 10 and a RL angle knob 11 for bending the bending portion 7 in a vertical direction (UD) and a horizontal direction (RL), respectively, and a UD angle release for canceling the vertical and horizontal bending A knob 12 and an RL angle release knob 13 are provided.

Further, in the grip portion 9, an air / water feeding piston 14 is sucked by an air / water feeding cylinder 21 (see FIG. 2) via a conduit system provided in the endoscope 1. The suction piston 15 for performing the suction cylinder 22 (see FIG.
(See) is installed. Further, a forceps mouth portion 16 is provided at a position of the grip portion 9 on the insertion portion 5 side, and a forceps plug 17 such as a semi-disposal is attached to the forceps mouth portion 16.

Further, a pressure mouthpiece 18, a water supply mouthpiece 19, a suction mouthpiece 20, and an electric connector 8 are provided on the side of the connector portion 3.
1 is provided, and a light guide base 82 is projectingly provided on the tip surface.

The light guide cap 82 of the connector portion 3
Is connected to a light source device (not shown), the light of the lamp inside the light source device is supplied to the light guide end face of the light guide base 82, and the supplied light is fixed to the tip portion 6 of the insertion portion 5 by the light guide. On the other hand, the light is transmitted to the other end face and is further emitted through an illumination optical system provided in the illumination window to illuminate a subject such as a diseased part.

As shown in FIG.
The water supply / suction line is installed. The operation part 2 is provided with an air supply / water supply piston 14 to which the air supply / water supply piston 14 is detachably attached.
A water supply cylinder 21 and a suction cylinder 22 to which the suction piston 15 is detachably mounted are attached. On the peripheral wall of the air / water supply cylinder 21, the insertion side air supply line 23,
The insertion section side water supply conduit 24, the universal cord side air supply conduit 25, and the universal cord side water supply conduit 26 are open.

The insertion part side air supply conduit 23 and the insertion part side water supply conduit 24 are connected to a trifurcated branch pipe 27 in the middle of the insertion part 5, and one air supply / water supply conduit is provided in the bending part 7. 28,
The surface of the cover glass 30 of the observation optical system 29 of the tip 6 is connected to an air / water supply nozzle 31 for cleaning and draining water.

The observing optical system 29 comprises a cover glass 30 and an optical lens 32 arranged inside the cover glass 30, and a solid-state image pickup element 33 forming an image pickup means is arranged at an image forming position of the observing optical system 29 to form an optical image. Photoelectric conversion. The solid-state image pickup device 33 is connected to a signal cable 34, the signal cable 34 is connected to a contact of an electric connector 81 of the connector portion 3, and is connected to a video processor via a scope cable (not shown), so that the solid state image is obtained by the video processor. Signal processing is performed on the image sensor, a video signal is generated, and an endoscopic image is displayed on a monitor (not shown).

The universal cord side water supply conduit 25 is connected to the pressurizing cap 18 and the air supplying cap 35 of the connector section 3. Further, the universal cord side water supply conduit 26 is connected to the water supply mouthpiece 19 of the connector part 3. Connector part 3
Is also connected to a pressure pump and a water supply tank of a light source device (not shown), and by combining with the air supply / water supply piston 14, water supply or air supply can be performed from the air supply / water supply nozzle 31.

Further, a rear end of the insertion portion side suction pipe line 36 is opened in a side wall of the suction cylinder 22, and a tip of a universal cord side suction pipe line 37 of the suction cylinder 22 is opened.
The universal cord side suction conduit 37 is connected to the suction mouthpiece 20 in the connector part 3, and the insertion part side suction conduit 36 merges with the conduit from the forceps mouth part 16 in the middle and opens at the tip part 6. are doing. By connecting a suction tube from a suction pump (not shown) to the suction mouthpiece 20 of the connector portion 3 and combining it with the suction piston 15, mucus, dirt, air, etc. in the body cavity can be sucked from the opening of the tip portion 6. .

As shown in FIG. 2, the air / water feeding piston 14
A cleaning tool guide member 40 can be detachably attached to the air / water supply cylinder 21 and the suction cylinder 22 with the suction piston 15 removed, and the detailed structure of the state in which the cleaning tool guide member 40 is attached Is shown in FIG.

As shown in FIG. 4, the rear end of the insertion section side air supply conduit 23 is obliquely directed from the lower side to the upper side on the peripheral wall of the air supply / water supply cylinder 21 of the operation section 2 of the endoscope 1. Is opened, and the insertion section side air supply line 23 is looped in a U shape so that the direction of the insertion section side can be smoothly changed to the insertion section side in the operation section 2.

A cleaning tool having a cleaning tool guide passage 39 for smoothly inserting a slender and flexible cleaning tool 38 (see FIG. 8) into the air supply conduit 23 on the insertion portion side in the air supply / water supply cylinder 21. The guide member 40 can be attached to the air / water supply cylinder 21.

A positioning shaft 41 is provided on the lower surface of the cleaning tool guide member 40 so that it can be fitted into the suction cylinder 22 provided separately beside the air / water supply cylinder 21.

If only the cylindrical guide body 45 is attached to the air / water supply cylinder 21, the positioning of the cleaning tool guide passage 39 with the insertion portion-side air supply conduit 23 has an arbitrary positioning in the rotational direction. Although it becomes difficult, the positioning shaft 41 is, for example, fitted (fitted) to the suction cylinder 22 provided next to the air / water supply cylinder 21 or loosely fitted (loose fitting) with a slight gap. By doing so, the positioning in the rotational direction is performed, and a positioning means for preventing the positional deviation in the rotational direction between the cleaning tool guide passage 39 and the insertion portion side air supply conduit 23 is formed.

That is, the direction (orientation) connecting the central axis of the guide body 45 and the central axis of the positioning shaft 41 is set so as to pass through both central axes of the air / water feeding cylinder 21 and the suction cylinder 22. The tool guide passage 39 can be positioned in the azimuth direction (when attached to the air / water supply cylinder 21), and the cleaning tool guide passage 39 can be set so as to smoothly communicate with the insertion portion side air supply conduit 23. .

In this case, it is also a feature that the positioning means is formed without providing irregularities such as grooves around the air / water feeding cylinder 21, such as the inner surface of the air / water feeding cylinder 21.

Air / water supply cylinder 21 and suction cylinder 2
The air supply / water supply cylinder fixing nut 42 and the suction cylinder fixing nut 43 for fixing each to the operation part 2 are provided on the outer periphery of the upper surface of
Is provided, and a seal member 44 such as an O-ring is interposed between the seal member 44 and the seal member 44 so that the seal member 44 is fixed while maintaining watertightness and airtightness.

The cleaning tool guide member 40 is made of glass fiber 1
A cylindrical guide body 45 provided with a cleaning tool guide passage 39 made of a hard synthetic resin such as polysulfone reinforced by containing 0 to 30%, a positioning shaft 41, and the guide body 45 and the positioning shaft 41 are connected to each other. The gripping portion 46 is integrally formed.

As shown in FIG. 3, OLYMPUS, JAPAN, ABC are located on the upper surface of the grip portion 46 so that the user can easily see them.
Company name such as DEF, AUTOCLVABLE, manufacturing country name,
The display unit 47 displays necessary information such as product name and autoclave compatibility. Further, in order to show that the cleaning tool guide member 40 can be used in an autoclave, the color of the cleaning tool guide member 40 is a color recognizable by the user, such as yellowish green.

The shape of the cleaning tool guide passage 39 opened by incliningly penetrating the guide body 45 is vertical as shown in FIG. 5 when viewed from the direction of arrow A in FIG. 4 (the horizontal direction in FIG. 4 is the vertical direction). Corresponding to), has a long oblong shape in the direction perpendicular to this. More specifically, assuming that the vertical dimension h1 is h2, the vertical dimension is approximately h2.apprxeq.2.
It has a relationship of h1.

This is because even if the fixed position of the air supply / water supply cylinder 21 to the operation part 2 or the rotational position of the fixed position of the insertion part side air supply pipe 23 to the air supply / water supply cylinder 21 varies. The cleaning tool guide passage 39 is the insertion portion-side air supply conduit 2
It is set so that it will always pass 3.

The mouth of the cleaning tool guide passage 39 is provided with a chamfered portion 48 such as a funnel-shaped C chamfer or R chamfer so that the cleaning tool 38 can be easily inserted. Also, the guide body 4
At the tip of 5, the cleaning tool guide member 40 is thicker than the inner diameter of the cylinder of another endoscope which should not be accidentally attached.
An extension portion 49 having a diameter smaller than the inner diameter of the water supply cylinder 21 is formed.

Due to the presence of the extending portion 49, even if the cleaning tool guide member 40 is erroneously installed in another cylinder, it cannot be completely installed, and the cleaning tool guide passage 39 and the opening of any pipe line in the cylinder. Since it does not communicate with each other, the user can easily discriminate erroneous mounting. The erroneous mounting preventing means may be another means other than the extending portion 49, or may be provided on the positioning shaft 41 attached to the suction cylinder 22 by fitting or the like.

Next, the vertical connecting portion between the cleaning tool guide passage 39 and the insertion portion side air supply conduit 23 will be described with reference to FIGS. 6 and 7. The inclination angle θ1 of the cleaning tool guide passage 39 is more acute than the inclination angle θ2 of the insertion portion side air supply conduit 23 (that is, θ1>
θ2), and the intersection 50 between the central axis of the cleaning tool guide passage 39 and the central axis of the insertion portion side air supply conduit 23 is set to be inside the side wall of the air / water supply cylinder 21.

Further, as a device for smoothly introducing the cleaning tool 38 into the connecting port 51 of the insertion section side air supply conduit 23 and withdrawing it from the connecting port 51 into the cleaning tool guide passage 39, the following relational expression is obtained. The vertical position relationship is set.

The depth (distance) from the upper surface 52 of the air / water feeding cylinder 21 to the upper side of the connecting port 51 of the air feeding conduit 23 on the insertion side is S1, and the upper surface 52 of the air / water feeding cylinder 21 is the same.
From the end face 53 of the cleaning tool guide member 40 in contact with the upper surface 52 of the air / water supply cylinder 21 to the upper side of the side wall opening 54 of the cleaning tool guide member 40. Similarly, when the depth from the end face 53 contacting the upper surface 52 to the lower side of the side wall opening 54 of the cleaning tool guide member 40 is G2, G1 ≤ S1 and G2 ≤ S2 (1) It became a relationship of.

Further, in FIG. 6, the depth (distance) from the upper surface 52 of the air / water feeding cylinder 21 to the center of the connecting port 51 of the insertion side air feeding conduit 23 is S0, and the end face 53 is the side wall of the cleaning tool guide member 40. The depth to the center of the opening 54 is indicated by G0.

FIG. 7 shows the cleaning tool guide passage 3 as viewed from the direction of arrow C in FIG.
It is the figure which looked at the connection port 51 over 9. G1 <S1 and G
The relationship of 2 <S2 is established, and the cylinder inner wall 55 other than the connection port 51 can be seen as the upper inner wall 55a, the left lateral inner wall 55b, and the right lateral inner wall 55c. The actual communication part 56 is shown in FIG.
The height H is not larger than the maximum hard outer shape S (see FIG. 8) of the insertion portion 57 of the cleaning tool 38 to be used. Is set so that

FIG. 8 shows an example of the cleaning tool 38 used.
This is a metal wire 5 that is rust-resistant, such as two or more stainless steels.
A plurality of soft wire rods 59 such as nylon and wool that become the hairs of a brush are wound around the tip end side of 8 to form a stranded wire, and the tip end of the metal wire rod 58 is melted by plasma arc or the like.
Substantially spherical part 6 that smoothly connects with the metal wire 58 that follows it
The length of the brush gripper 62 is longer than the length of the conduit to be cleaned (the insertion part side air supply conduit 23), and the brush grip 62 having the hole 61 for hooking a hook or the like is provided on the proximal side thereof. There is.

Further, the soft material 59 is sufficiently thicker than the inner diameter of the conduit to be cleaned, but is set to be sufficiently soft so that it can be easily inserted and removed. A substantially spherical portion 6 integrated with the metal wire 58 at the tip
Since it has 0, it has an excellent effect that it is not easily caught when it is inserted into or removed from the duct, and it is not a separate body so that it does not fall off.

Next, the operation will be described. After the endoscopy,
When the endoscope 1 is washed, the air / water feeding piston 14 and the suction piston 15 are removed from the operation unit 2. First, fill the pipe to be cleaned with clean water using an adapter (not shown). Next, the cleaning tool guide member 40 is attached to the air / water supply cylinder 21 and the suction cylinder 22 as shown in FIG.
Simply by mounting the cleaning tool guide passage 39 and the insertion portion side air supply conduit 23 in the rotational direction position (as shown in FIG. 3 with respect to the line connecting the central axes of the air supply / water supply cylinder 21 and the suction cylinder 22).
5 ° inclined position) matches.

When the display portion 47 on the upper surface of the grip portion 46 is pressed against the operation portion 2, the vertical position of FIGS. 6 and 7 is determined. An insertion portion 57 of the cleaning tool 38 is provided in the cleaning tool guide passage 39.
As it passes through, the substantially spherical portion 60 at the tip thereof abuts the cylinder inner wall 55 (one of 55a, 55b, 55c) or is smoothly inserted into the communication portion 56.

Even if it hits the cylinder inner wall 55,
The inner walls 55b and 55c have curved surfaces, and when the cleaning tool 38 is pushed in, the substantially spherical portion 60 moves laterally and is guided to the communicating portion 56, and even when the inner wall 55a is abutted, the communicating portion 56 is lowered. Since the cleaning tool 38 is on the side, the substantially spherical portion 60 moves downward and is guided to the communication portion 56 by pushing in the cleaning tool 38.

The cleaning tool 38 is inserted from the connecting port 51 to the inner surface of the air / water supply nozzle 31 at the tip of the insertion part side air supply conduit 23, and brushing is performed between them to remove it. When removing
The cleaning tool 38 can be smoothly pulled out without being caught by the upper opening of the side wall opening 54 of the cleaning tool guide passage 39. On the other hand, when the relationship of the expression (1) is not satisfied, the cylinder inner wall 55 may be seen on the lower side opposite to the inner wall 55a, and in that case, the tip of the cleaning tool 38 that abuts that portion is Since the connecting port 51 is located above the connecting port 51, it is difficult to insert the connecting port 51 into the connecting port 51.

Further, if the upper side of the connecting port 51 is located at a position higher than the upper side of the side wall opening 54 (upper side), the cleaning tool 38 has a problem that the tip of the cleaning tool 38 is caught at the corner of the side wall opening 54 and cannot be removed. After the brushing by the cleaning tool 38, the cleaning tool guide member 40 is removed from the operation unit 2, and clean water and air are flowed into the brushed conduit again using an adapter (not shown) to remove dirt.

This embodiment has the following effects. a. Since the positional relationship between the air / water feeding cylinder 21 and the suction cylinder 22 is set accurately, and there is a certain distance between them, the suction cylinder 22 has a positioning shaft 41.
The positioning accuracy of the connection port 51 in the air / water supply cylinder 21 and the cleaning tool guide passage 39 when the is fixed by fitting or the like can be increased, and it is difficult to shift.

B. The cleaning tool 38 is easily introduced from the cleaning tool guide passage 39 into the insertion-side air supply conduit 23, and is unlikely to be caught even when it is removed. Therefore, the cleaning work can be simplified and the cleaning workability is good.

C. Further, since positioning is possible without providing irregularities around the cylinder of the air / water feeding cylinder 21, it is possible to eliminate drawbacks such as troublesome cleaning of the irregularities.

(Second Embodiment) Next, a second embodiment of the present invention will be described. FIG. 9 is a cross-sectional view showing a state in which the cleaning tool guide member 40 having a structure different from that used in the first embodiment is attached to the cylinders 21 and 22 of the endoscope operation section 2.

Only the configuration different from that of the first embodiment will be described, and those having the same function will be denoted by the same name and number.
The cleaning tool guide member 40 of the present embodiment has a hardness of 60 to 8
The guide body 45, the positioning shaft 41, and the grip portion 46 are integrally formed of soft synthetic rubber such as silicon rubber which is relatively hard at 0 °.

At the tip of the guide body 45, an extension shaft 63 made of a metal such as stainless steel having a function of preventing erroneous attachment to another cylinder is fixed to the guide body 45 by insert molding. is there.

The suction cylinder 22 is pressed into the outer circumference of the positioning shaft 41 so that the suction cylinder 2 can be turned upside down.
2 A frictional resistance part 6 with a large frictional resistance that prevents it from coming off
Four. Further, the grip portion 46 is thick and easy to be gripped over the entire circumference, so that the attachability / detachability to / from the cylinders 21 and 22 is improved.

The usage (function) of the cleaning tool guide member 40 and other configurations are the same as those in the first embodiment. This embodiment has the following effects.

A. Since the cleaning tool guide member 40 is made of synthetic rubber, the cleaning tool guide member 40 can be attached to the cylinders 21 and 22 even if there is a slight position or size deviation. b. Since it has the frictional resistance portion 64, once it is firmly attached, it does not fall out even if the hand is removed from the cleaning tool guide member 40.

(Third Embodiment) FIGS. 10 to 12
10A relates to the third embodiment of the present invention, FIG. 10A is a plan view of the cleaning tool guide member 40 attached to the operation unit 2, and FIG. 10B is DD of FIG. 10A. A cross-sectional view showing a state in which the cleaning tool 38 is inserted into the cleaning tool guide member 40,
10C is a view of the cleaning tool guide member 40 seen from the direction of arrow E in FIG. 10A, FIG. 11 is an external view of the first cleaning tool used in the present embodiment, and FIG. It is an external view of a 2nd cleaning tool.

Only the structure different from that of the first and second embodiments will be described. Those having the same function are denoted by the same name and number. As shown in FIG. 10, the cleaning tool guide member 40 according to the present embodiment is provided with the operation unit 2 near the air / water supply cylinder 21.
It has a positioning arm 67 having a frictional convex portion 66 that abuts on the flat surface portion of the lower (insertion portion side) outer surface 65 and can be fixed by frictional resistance.

The two-dot chain line in FIG. 10 (B) shows the shape of the friction convex portion 66 in the state where it is not attached, and it is deformed and fixed by being attached. Further, the cleaning tool guide passage 39 is not a hole, but is provided with a slope-shaped notch 69 having a bottom surface 68 inclined downward from above the guide body 45 of the cleaning tool guide member 40.

11 and 12 show a cleaning tool 38 used in this embodiment. FIG. 11 shows the air / water supply nozzle 3.
The soft wire 59 that becomes the bristles of the brush is wound around the two metal wires 58 so that the inner surface of 1 can be brushed, and a U-shaped loop is formed at the tip of the wire, and the soft wire 59 is provided on both the front side and the side. It was made to come out.

Two metal wire rods 5 are folded back so that they can be smoothly inserted into a pipeline having a small inner diameter such as the air duct 23 on the insertion section side and a long length, and a brushing operation can be performed.
8 is an inner hole portion 71 of the metal coil shaft 70 having a thin outer shape
, And the connection parts are smoothly connected by means such as brazing, laser welding, and adhesion.

In FIG. 12, a coil shaft 70 is a double multi-strand coil shaft 72 having different winding directions (inner right winding and outer left winding), and the cleaning tool 38 of FIG.
Cut and insert the tip of the, and connect them smoothly as in Fig. 11.

Since the cleaning tool 38 of FIGS. 11 and 12 uses the coil shafts 70 and 72, two or more metal wire rods 58 are twisted into a wire shape and used as the insertion portion side air supply conduit 23. It has an advantage that it is less likely to have a loop-shaped bending tendency when it is inserted into or removed from the U-shaped curved pipe line, and has excellent durability.

Further, it is more flexible than the metal wire rod 58 and is easy to insert and remove. Especially, since the tip of the double poly-shaped coil shaft 72 easily follows when twisting the hand, brushing while rotating can be performed. It has the advantage of being excellent.

Next, the operation of the present embodiment will be described. FIG.
As shown in 0 (B), when the cleaning tool 38 is inserted along the bottom surface 68 of the cutout portion 69, the cleaning tool 38 can be naturally inserted into the insertion portion side air supply conduit 23. In the same manner as in the above embodiment, the air / water feed nozzle 31 is inserted, brushed, and then withdrawn.

This embodiment has the following effects. a. Even if the suction piston 15 of the suction cylinder 22 is attached, the cleaning tool guide member 40 can be attached to the operation unit 2 so as to be aligned.

B. Since it has the friction protrusion 66, the second
Similar to the above embodiment, it does not fall out even if the hand is released. c. Since the cleaning tool guide passage 39 is not a hole but a notch, bubbles in the inside are less likely to remain, and a spatula or the like can be put in, so that the cleaning and disinfecting properties are excellent.

(Fourth Embodiment) FIGS. 13 to 15 relate to a fourth embodiment of the present invention, and FIG. 13 is a plan view of the cleaning tool guide member 40 of the present embodiment, and FIG. Is a view of the cleaning tool guide member 40 attached to the operation unit 2, FIG.
FIG. 15 is a cross-sectional view taken along line F-F of FIG. 14 and is a view for explaining the lateral (rotational) shape of the cleaning tool guide passage 39.

Only the configuration different from the first and second embodiments will be described. Those having the same function are denoted by the same name and number. The cleaning tool guide member 40 in the present embodiment is similar to the first and second embodiments in that the air / water supply cylinder 21.
And the suction cylinder 22 to the guide body 45 and the positioning shaft 41.
By installing the, the conduit of the endoscope 1 and the cleaning tool guide passage 3
The position of 9 is adjusted in the direction of rotation.

As shown in FIGS. 13 and 14, the cleaning tool guide member 40 has a plurality of cleaning tool guide passages 39. That is, there are a first guide passage 73 opening in the air / water feeding cylinder 21, and a second guide passage 74 and a third guide passage 75 opening in the suction cylinder 22, both of which are positioned with respect to the guide body 45. It functions as the shaft 41.

Further, the first guide passage 73 has the same size in the depth direction of the air / water supply cylinder mounted as shown in FIG. 15, but has a wide mouth in the lateral direction, and gradually extends toward the side wall opening 54. It has the shape of a fan-shaped hole 76 that becomes narrower.

Next, the operation of this embodiment will be described. The cleaning tool 38 of the first and second embodiments is installed in the first guide passage 7
3, the second guide passage 74 and the third guide passage 75 are inserted to brush the inside of each pipe.

The present embodiment has the following effects. a. Once the cleaning tool guide member 40 is mounted on the operation unit 2, the cleaning tool can be smoothly inserted into a plurality of conduits.

B. Since the cleaning tool 38 can be moved laterally in the cleaning tool guide passage 39, as shown in FIG.
When the tip of the cleaning tool 38 hits b, 55c, the cleaning tool 38 can be moved laterally more easily and smoothly inserted into the insertion opening 51 than a balanced long hole.

The present invention is not limited to these embodiments, and the alignment means is not the outer surface on the lower side or the upper side of the operating section 2 but on the lateral outer surface (for example, the vertical direction of the paper surface in FIG. 4) or the UD angle. You may make it contact | abut on the lower surface of the knob 10, or may use the remote switch provided in the operation part 2, or air supply /
Of course, the contact may be made so as to fit around the water supply button. Further, the guide main body 45 and the positioning shaft 41 or the positioning arm 67 may be formed separately and joined together.

The cleaning tool guide passage 39 has the cylinders 21 and 22.
Of course, the opening direction of the inner pipe may be devised so that the pipe communicates with the insertion portion side water supply conduit 24, the universal cord side air supply conduit 25, and the universal side water supply conduit 26.

Further, the cleaning tool 38 to be used may be a simple metal wire 58 without the soft wire 59 or a coil shaft 70, which also has the effect of removing clogging in the middle of the pipeline.

It should be noted that the cleaning tool guide passage 39 and the connection port 51 can be aligned in the rotational direction and the cleaning tool can be smoothly moved without providing a positioning groove or a positioning projection at the opening on the outside of the cylinder to reduce the cleaning property. Any endoscope apparatus may be used as long as it is a combination of cleaning tool guide members that can be inserted into the communication port 51 of the duct, and it is naturally possible to combine the elements of the respective embodiments or to carry out modifications. is there.

In the above description, the positioning of the guide member having the cleaning tool guide conduit for mainly cleaning the insertion portion side air supply conduit 23 with the cleaning tool has been described, but also for other conduits. The same applies to the present invention.

[Additional Notes] 1. An operating portion having a switching valve composed of a cylinder and a piston detachably attached to the cylinder is provided, and a cleaning tool guide member having a cleaning tool guide passage is attached to the cylinder instead of the piston at the time of cleaning to open in the cylinder. In the endoscope device capable of inserting the cleaning tool into the conduit, the means for contacting the operating portion constituent element other than the cylinder is provided as a positioning means for determining the communication position between the cleaning tool guide passage and the conduit. An endoscope apparatus provided on the cleaning tool guide member.

(Effect) Even if the cylinder of the endoscope operation section is made flat without providing positioning means such as unevenness, by using necessary operation section elements in the first place, the cleaning tool guide passage of the cleaning tool guide member can be formed. The alignment of the pipes in the cylinder in the rotational direction can be quantitatively performed without visual inspection, which facilitates cleaning workability such as cleaning tool insertion / removal and cylinder cleaning.

2. The endoscope apparatus according to the first aspect is a positioning shaft that abuts by being fitted or loosely attached to a cylinder opening different from the cylinder of the endoscope body. (Effect) The positional relationship between the air / water feeding cylinder and the suction cylinder is accurately shown, and since the interval is long, the positioning accuracy in the rotation direction is high.

3. The endoscope device according to the first aspect is a positioning arm that is in contact with an outer surface of an operation unit to which the cylinder of the endoscope body is fixed. (Effect) Brushing can be done without removing the pistons of other cylinders, which reduces labor.

4. The positioning device according to any one of items 1 to 3 is integrally formed with the cleaning tool guide member. (Effect) Since it is an integrally molded product, it is easier to obtain accuracy than a separately assembled product, and positioning accuracy in the rotation direction is high.

5. The cylinders and pistons of the first to fourth items are provided with an air / water supply switching valve, and the pipe opening to the inside of the cylinder is an air / water supply jet provided at the tip of the insertion portion of the endoscope. An endoscope apparatus, which is an air supply or water supply conduit communicating with the. 6. The cylinder and the piston of the items 1 to 4 are provided with a suction switching valve, and the pipeline opened in the cylinder is
An endoscopic device, which is a suction or treatment instrument conduit communicating with an opening provided at a distal end of an insertion portion of an endoscope.

7. The endoscope apparatus according to any one of items 1 to 6, wherein the conduit opening in the cylinder opens at a position displaced from the central axis of the cylinder. 8. The endoscopic apparatus according to any one of items 1 to 7, wherein the conduit opening into the cylinder is opened obliquely outward from the upper side to the lower side on the peripheral wall of the cylinder.

9. The endoscope device according to any one of items 1 to 8, wherein the cleaning tool guide member is formed of a hard synthetic resin. (Effect) Since it is a hard material, the accuracy is easy to obtain, and the positioning accuracy in the rotation direction is high.

10. The endoscope device according to any one of items 1 to 8, wherein the cleaning tool guide member is made of soft synthetic rubber. (Effect) Since it is a soft material, it can be attached even if the dimensions are slightly rough, and the frictional resistance part that does not fall out from the cylinder can be easily made.

11. The cleaning tool guide passage of the cleaning tool guide member according to item 8 is an oblique through hole extending from the upper side to the lower side of the cleaning tool guide member so that the cleaning tool can be smoothly inserted into and removed from the conduit. Endoscope device. (Effect) Since it is a through hole, the cleaning tool does not easily slip out of the guide passage and is easy to insert and remove.

12. The cleaning tool guide passage of the cleaning tool guide member according to item 8 is a cutout portion having an oblique bottom surface from the upper side to the lower side of the cleaning tool guide member so that the cleaning tool can be smoothly inserted into and removed from the conduit. An endoscopic device characterized by: (Effect) It is a cutout portion, and its cleaning property is superior to that of the hole.

13. A switching valve including a cylinder and a piston detachably attached to the cylinder is provided, and a cleaning tool guide member having a cleaning tool guide passage is attached to the cylinder instead of the piston at the time of cleaning, and a pipe opening to a side wall of the cylinder is provided. In an endoscope device capable of inserting a cleaning tool, the vertical position of the side wall opening of the cleaning tool guide passage is set to the depth from the upper surface of the cylinder to the upper side of the connection port with respect to the vertical position of the connection port opening to the cylinder side wall. S1 is the depth from the top surface of the cylinder to the lower side of the connection port. S2 is the depth from the surface of the cleaning tool guide member that contacts the upper surface of the cylinder to the upper side of the side wall opening. The depth is set to G2, and the relationship of G1≤S1 and G2≤S2 is set so that the endoscopic device is characterized.

(Background of Supplementary Note 13) It is preferable that the side wall opening of the cleaning aid and the connection port of the cylinder communicate with each other.
085 and Japanese Patent Laid-Open No. 5-228107. The former can be read such that the vertical dimension of the side wall opening is larger than the vertical dimension of the connection port in both the upper and lower directions, but there is no description about the specific dimension and positional relationship.

The latter can be read such that the vertical dimension of the side wall opening is smaller than the vertical dimension of the connection port in both the upper and lower directions, but the specific dimensions and positional relationship thereof are not the same as the former.

When the vertical dimension of the side wall opening is set to be larger than the vertical dimension of the connection port as in Japanese Patent Publication No. 2-54085, the tip of the cleaning tool is inserted into the cylinder peripheral wall when the cleaning tool such as a cleaning brush is inserted. However, there is a problem that it cannot be properly introduced into the pipe connection port. Especially,
When the lower side of the side wall opening is located further below the lower side of the pipe connection port, the cleaning tool always strikes the cylinder peripheral wall.

Next, as in Japanese Patent Laid-Open No. 5-228107, if the vertical dimension of the side wall opening is set smaller than the vertical dimension of the connecting port in both vertical direction, the cleaning tool of the cleaning tool is removed when removing the cleaning tool from the pipe line. There is a problem that the dented part is caught in the opening of the side wall opening and cannot be properly removed into the cleaning tool guide passage. In that case, since the tip of the cleaning tool remains in the conduit in the cylinder, the cleaning tool guide member itself cannot be removed from the cylinder, and the piston cannot be installed in place of the cleaning tool guide member, and must be repaired without repairing. There may be a problem that the endoscopic examination itself cannot be performed.

Note 13 has been made in view of the above circumstances, and as a result of various examinations of the positional relationship, the cleaning tool can be smoothly inserted / removed into / from the pipeline of the cylinder side wall even in consideration of machining variations in the position. An object of the present invention is to provide an endoscope device including a cleaning tool guide member. (Effect) The cleaning tool can be easily inserted into and removed from the pipe line just by mounting it, and it has good cleanability, and repairs due to inability to remove are not required.

14. The relationship of the 13th term is G1 <S1 and G
An endoscope apparatus characterized in that 2 <S2. (Effect) Same as Appendix 13.

[0095]

As described above, according to the present invention, a cleaning tool is provided on the cylinder instead of the piston at the time of cleaning, provided with the operating portion having the switching valve composed of the cylinder and the piston detachable from the cylinder. In an endoscope apparatus in which a cleaning tool guide member having a guide passage is mounted so that the cleaning tool can be inserted into a conduit opening in a cylinder, a position for defining a communication position between the cleaning tool guide passage and the conduit. Since the cleaning tool guide member is provided with a means for contacting the operating portion constituent elements other than the cylinder as a matching means, the cleaning tool guide passage and the pipeline opening in the cylinder can be reliably aligned in the rotational direction. The cleaning tool can be easily inserted and the cleaning performance can be improved.

[Brief description of drawings]

FIG. 1 is an external view showing a configuration of an endoscope according to a first embodiment of the present invention.

FIG. 2 is a diagram illustrating the air supply / water supply of the endoscope device according to the first embodiment.
Explanatory drawing which shows the piping of a suction pipeline.

FIG. 3 is a plan view of a cleaning tool guide member according to the first embodiment.

4 is a cross-sectional view showing a state in which a cleaning tool guide member having a cross section taken along the line I1 I2 I3 I4 I5 I6 I7 I8 of FIG. 3 is attached to a cylinder of an endoscope operation unit.

5 shows the cleaning tool guide passage of the cleaning tool guide member in FIG.
The figure seen from the direction of the arrow.

FIG. 6 is a detailed explanatory diagram of a B part in FIG. 4;

FIG. 7 is a view of the cleaning tool guide passage and a pipe opening into the cylinder as seen from the direction of arrow C.

FIG. 8 is an external view of a cleaning tool used in this embodiment.

FIG. 9 is a cross-sectional view showing a state in which a cleaning tool guide member according to a second embodiment of the present invention is attached to a cylinder of an endoscope operation section.

FIG. 10 is a diagram showing a cross section of a state in which a cleaning tool guide member according to a third embodiment of the present invention is attached to a cylinder of an endoscope operation section.

FIG. 11 is a perspective view showing the structure of the tip of the cleaning tool.

FIG. 12 is a perspective view showing a structure on the tip side of a cleaning tool different from that in FIG. 11;

FIG. 13 is a plan view showing a cleaning tool guide member according to a fourth embodiment of the present invention.

FIG. 14 is a cross-sectional view in which the cleaning tool guide member of FIG. 13 is attached to the operation unit.

15 is an explanatory view of a lateral shape of the cleaning tool guide passage taken along line FF in FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Endoscope 2 ... Operation part 3 ... Connector part 4 ... Universal code 5 ... Insertion part 6 ... Tip part 14 ... Air supply / water supply piston 15 ... Suction piston 16 ... Forceps mouth part 21 ... Air supply / water supply cylinder 22 ... Suction Cylinder 23 ... Insertion-side air supply conduit 24 ... Insertion-side water supply conduit 25 ... Universal cord-side air supply conduit 26 ... Universal cord-side water supply conduit 36 ... Insertion-side suction conduit 39 ... Cleaning tool guide conduit 40 ... Cleaning tool guide member 41 ... Positioning shaft 45 ... Guide main body 46 ... Gripping portion 48 ... Chamfering portion 49 ... Extending portion 51 ... Connection port

Claims (1)

[Claims] 1. An operating portion having a switching valve including a cylinder and a piston detachably attached to the cylinder,
An endoscope apparatus in which a cleaning tool guide member having a cleaning tool guide passage is attached to the cylinder instead of the piston at the time of cleaning so that the cleaning tool can be inserted into a pipeline opening in the cylinder. An endoscope apparatus, wherein the cleaning tool guide member is provided with means for abutting against an operating portion constituent element other than the cylinder as an alignment means for determining a communication position between the passage and the conduit.