JP2000070218A - Pipe line washing device for endoscope - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pipe line washing device for an endoscope capable of surely performing water feed washing and performing washing inside a pipe line and draining with hands free except for a changeover operation. SOLUTION: In this pipe line washing device for the endoscope for tightly sealing a cylinder opening part after detaching an operation valve from the outside so as to wash the inside of the fluid pipe line of the endoscope for which plural air feed and water feed cylinder 8 and suction cylinder 9 connected in the middle of the fluid pipe line are arranged side by side to an operation part 2 and a pipe line operation valve is freely attachable and detachable to/ from the cylinders 8 and 9, a means capable of selectively communicating a connector side water feed pipe line 19 inside the air feed and water feed cylinder 8 with a tip part side air feed pipe line 10 and a tip part side water feed pipe line 11, selectively communicating a connector side air feed pipe line 18 with the tip part side air feed pipe line 10 and the tip part side water feed pipe line 11 in the state of tightly sealing the opening part of the suction cylinder 8 and keeping the respective states is provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an endoscope tube capable of simultaneously cleaning a conduit for supplying / supplying air to / from a distal end component of an endoscope and a conduit for suctioning from the distal end component. The present invention relates to a road cleaning device.

[0002]

2. Description of the Related Art Generally, an endoscope is provided with an air supply / water supply operation valve for operating air supply / water supply and a suction operation valve for operating suction in parallel with an operation unit. A conventional channel cleaning device for an endoscope is, for example, disclosed in Japanese Patent Application Laid-Open No. Hei 4-371130, in which the openings of the cylinders arranged side by side with the operation unit are sealed, and the cleaning liquid is passed through the openings of the cylinders. Etc. are prevented from erupting.

FIGS. 22 and 23 show the overall configuration of an endoscope. 1 is an insertion section, 2 is an operation section, 3 is a universal cord section, and 4 is a connector section. After the setting of the pipeline cleaning device 21 to the air / water supply cylinder 8 and the suction cylinder 9, for example, as shown in FIG. 22, the inside of the pipeline is fed to the distal end side by using the air supply pump 22 and the suction pump 23 of the light source. Airway 1
In this case, the inside and the inside of the water supply pipe 11 on the front end side are washed with water, and the inside of the suction pipe 12 on the front end side is suction-cleaned by sucking the cleaning liquid from the front end side.

[0004]

However, the water supply in the distal end side air supply line 10 and the distal end side water supply line 11 cannot be reliably and efficiently cleaned. That is, the fluid supplied into the air / water supply cylinder 8 is both water and air because of the structure that simply seals the cylinder openings of the air / water supply cylinder 8 and the suction cylinder 9.
If the resistance of both pipeline resistances of the connector-side air supply line 18 and the connector-side water supply line 19 from the connector portion 4 to the air supply / water supply cylinder 8 is poor, almost no water is actually supplied to the cylinder portion, and air Often only supplied. Therefore, the inside of the front end side air supply line 10 and the front end side water supply line 1
The water washing in 1 is insufficient due to the small amount of water sent,
And it took time.

[0005] Further, the draining operation of the inside of the front-end side air supply line 10 and the inside of the front-end side water supply line 11 after the above-mentioned water supply washing is also shown in FIG.
It was necessary to close the water tank attachment part with a finger and hold it until draining was completed, which was very troublesome.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object of the present invention is to perform cleaning and drainage of water supply in a front end side air supply line and a front end side water supply line by using a front end side suction line. It is an object of the present invention to provide an endoscope conduit cleaning device which can be performed reliably, in a short time and without any trouble simultaneously with the internal cleaning.

[0007]

According to the present invention, in order to achieve the above object, a plurality of cylinders connected in the middle of a fluid line are arranged in parallel with an operation section, and a line operation valve is provided from outside. In an endoscope pipeline cleaning apparatus for cleaning the inside of a fluid pipeline of an endoscope detachable from a cylinder, the cylinder opening after removing the pipeline operation valve is sealed from the outside. In a state where the parts are sealed, the connector side water supply line in the air supply / water supply cylinder is connected to the front end side air supply line and the front end side water supply line and the connector side air supply line is connected to the front end side air supply line and the front end side. A means is provided for selectively communicating with the water pipe and maintaining each state.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 4 show a first embodiment, and FIG. 1 is an overall configuration diagram of an endoscope duct cleaning apparatus. The endoscope includes an insertion section 1, an operation section 2, a universal cord section 3, and a connector section 4. Insertion part 1
The distal end portion 5 is provided with a distal end component portion 5. The distal end component portion 5 is provided with an air / water nozzle 6 and a suction port 7 in addition to an observation window and an illumination window (not shown).

The operation unit 2 is provided with an air / water supply cylinder 8 and a suction cylinder 9. An air supply / water supply operation valve and a suction operation valve (not shown) are detachably mounted on the air / water supply cylinder 8 and the suction cylinder 9, respectively, and the conduit cleaning device of the present invention can also be detachably mounted.

[0010] Inside the insertion portion 1, an air supply pipe 1 on the distal end side is provided.
0, a front-end-side water supply pipe 11 and a front-end-side suction pipe 12 are arranged, and the rear end sides thereof are opened inside the air / water supply cylinder 8 and the suction cylinder 9, respectively.

The distal end side suction pipe 12 is branched in the middle, and the end thereof is connected to the treatment instrument insertion port 13.
Is in communication with A treatment instrument insertion port cleaning tube 14 which is one of the treatment instrument insertion ports 13 is detachably mounted.

On the other hand, the connector section 4 has a suction pump connection port 15, a water supply tank connection port 16, and an air supply pump connection port 1.
7 are provided. The connection tube from the suction pump 23 is connected to the suction pump connection port 15. A water tank 24 is connected to the water tank connection port 16. A pipe from an air supply pump 22 provided in a light source device (not shown) is connected to the air supply pump connection port 17.

In FIG. 1, after the examination is completed, a treatment instrument insertion port cleaning tube 14 is attached to the treatment instrument insertion port 13, and the distal end component 5 is put in a cleaning liquid 25, and the conduit cleaning apparatus 21 of the present invention is provided.
1 shows a state in which is to be mounted. At this time, the air supply pump 22 and the suction pump 23 are still off.

FIG. 2 is an external view and a sectional view of the conduit cleaning device 21. This conduit cleaning device 21 can be roughly divided into
It is composed of a cylinder port gripper 26, a main body 27 and a connecting plate 28. The material of the cylinder port gripper 26 is, for example, S
It is made of a plate material such as US, and has a shape in which three sides including one side provided with the washing drain 52 are bent. A U-shaped slit 54 is formed on the bottom surface.

The main body 27 and the cylinder opening holding portion 26 are positioned and fixed from the side surface with a plurality of fixing pins 46 by an adhesive. The connecting plate 28 mainly includes an air / water switching valve 29.
And a plug body 30 are provided. Air / water switching unit 29
Is a movable shaft 31, a bearing 32, a first spring 33, and a spring seat 34.
, And the spring seat 34 is inserted between the movable shaft 31 and the bearing 32 by fixing with an adhesive screw. The spring seat 34 has a flange portion for receiving the other end of the first spring 33. The other end of the first spring 33 is received by the connecting plate 28. A guide pin 35 is fixed to an upper portion of the bearing 32 so as to protrude in the horizontal direction.

Further, a first rubber packing 36, a second rubber packing 37, a third rubber packing 38,
A check valve 39 and a slide receiver 40 are provided. At the center of the movable shaft 31, a flow path 45 is formed in the axial direction and the outer periphery. The material of the movable shaft 31 is mainly a metal such as SUS,
The first rubber packing 36, the second rubber packing 37, the third rubber packing 38, and the check valve 39 are made of a silicone rubber material, and the slide receiver 40 is made of a resin such as modified PPO or PSU.

The plug body 30 includes a second spring 41, a plug body main body 42, and a plug body main body receiver 43.
Is provided with a fourth rubber packing 44. The other end of the plug body receiver 43 is provided with a flange that is hooked on the connecting plate 28. The plug body main body receiver 43 and the plug body main body 42 hold the second spring 41 therebetween as shown in FIG. Incidentally, the pipe line cleaning device 21 uses an epoxy-based chemical-resistant and heat-resistant adhesive as an adhesive in a chemical-resistant and autoclave-resistant manner.

The upper surface of the main body 27 has a second U-shaped slit 55 similarly to the cylinder opening gripping portion 26, and a partially raised pin slide portion 47 is provided at the bottom of the slit 55. I have. The pin slide portion 47 has an inclined portion 48 and a concave portion 49 provided on the upper portion.

An air supply mode indicator 51 is provided near the recess 49, and a water supply mode indicator 50 is provided in the middle of the inclined portion 48. Further, a slip stopper 53 is provided outside the mouth side of the slit 55. Further, in the middle of the slit 55, a concave portion 49 is provided which indicates a point at which the main pipe cleaning device 21 is attached to and detached from the cylinder portion.

As described above, the connecting plate 28 to which the air / water switching valve 29 and the plug 30 are fixed is covered with the cylinder opening grip 26 and the main body 27 so as to be slidable laterally. Incidentally, in FIG.
And the main body 27, but it may be composed of one body. By the way, the material of the main body 27 is modified PPO. P
It is made of resin such as SU.

Next, the operation of the first embodiment will be described. Before describing the operation, the cylinder side structure shown in FIG. 3 will be described. The air / water supply cylinder 8 and the suction cylinder 9 are fixed to the operation unit main body 56. The fixing method is such that the air supply / water supply cylinder 8 and the suction cylinder 9 both have the first stopper base 57 and the second stopper base 60 each having a flange at the end so that the operation unit main body 56 is sandwiched from the outside, and the fifth rubber packing is provided. At 58, it is fixed watertight.

There are four openings on the inner surface of the air / water supply cylinder 8, and each opening is connected to each pipe via a pipe member 59. The air inlet 59a is connected to the connector-side air supply line 1
8, the air outlet 59 b is connected to the distal end side air supply line 10, the liquid inlet 59 c is connected to the connector side water supply line 19, and the liquid outlet 59.
d is in communication with the water supply pipe 11 on the tip end side.

On the other hand, there are two openings on the inner surface of the suction cylinder 9, and each opening is similarly connected to each pipe via a pipe member 59. The detergent inlet 59e is connected to the tip side suction line 12, and the detergent outlet 59f is connected to the connector side suction line 2.
It is connected to 0.

FIG. 3 shows an air / water switching valve 29 for each cylinder.
After inserting the plug body 30 and the plug body 30, the cylinder-port gripping part 26 integrated with the main body 27 is slid laterally to move the guide pin 35 to the position of the water supply mode indicator 50.

This state is also a state in which the guide pin 35 contacts the inclined portion 48. At this time, the main line cleaning device 21
The first stopper cap 57 and the second stopper cap 60 on the operation section side are connected to the cylinder port gripping section 26 and the spring seat 3 on the main pipe cleaning device 21 side.
4 and the plug body 42.

The communication state of each pipeline in this state is as follows. The liquid inlet 59c communicates with both the liquid outlet 59d and the air outlet 59b, and the air inlet 59a is shielded by the close contact between the check valve 39 and the air / water cylinder 8. The detergent inlet 59e communicates with the detergent outlet 59f.
The two cylinder openings are sealed to the outside by a first rubber packing 36 and a fourth rubber packing 44 as seal members.

In this state, when the other parts are connected as shown in FIG. 1 and the air supply pump 22 and the suction pump 23 are operated, the following is achieved. Since the connector side air supply line 18 is closed in the air supply / water supply cylinder 8, all air supply from the air supply pump 22 is sent into the water supply tank 24 to pressurize the water surface. The water in the water supply tank 24 is supplied to the distal end side air supply line 10 and the distal end side water supply line 11 through the connector side water supply line 19, and cleans the insides of both the lines 10, 11. On the other hand, as for the suction pipe system, since the cleaning liquid is sucked from the suction port 7 and the treatment tool insertion port 13, the suction pipe 12 on the distal end side and the suction pipe 2 on the connector side are used.
The interior of 0 can be washed.

FIG. 4 shows that the cylinder-port gripping portion 26 and the main body 27 are further slid in the horizontal direction from the state shown in FIG. 3 to move the guide pin 35 to the position of the air supply mode indicator 51. This is a state in which the valve 29 is moved upward in the axial direction. After being guided along the inclined portion, the guide pin 35 is fitted into a concave portion 49 provided on the upper portion of the pin slide portion 47.

The communication state of each pipeline in this state is as follows. The air inlet 59a communicates with both the air outlet 59b and the liquid outlet 59d, and the liquid inlet 59c is shielded by the close contact between the third rubber packing 38 and the air / water supply cylinder 8. The detergent inlet 59e and the detergent outlet 59f remain in communication as in the state of FIG. That is, since the connector-side water supply pipe line 19 is closed in the air supply / water supply cylinder 8, all the air supply from the air supply pump 22 is sent into the air supply / water supply cylinder 8 through the connector-side air supply pipe line 18. Further, as shown by the arrow, the air is supplied to the distal end side air supply conduit 10 and the distal end side water supply conduit 11 through the space between the check valve 39 and the inner wall of the cylinder, and the drainage of both conduits 10, 11 is performed.

According to the first embodiment, the following effects can be obtained. Water washing can be performed reliably. Except for the switching operation, since the inside of the pipeline can be washed and drained without any hand, no labor is required.

Since the suction cleaning can be performed at the same time, the cleaning time can be reduced. Only an air supply pump and a suction pump of a light source used for normal inspection are required, and no special cleaning pump is required.

FIGS. 5 and 6 show a second embodiment, in which the same components as those in the first embodiment are denoted by the same reference numerals and description thereof is omitted. The only difference from the first embodiment is the difference in the switching operation method of the air / water switching valve 29.

That is, the head of the bearing 32 is provided with a holding projection 62. On the upper surface of the main body 27, a mode switching projection 63 is formed. The mode switching projection 63 has a stopper surface 6 against which the guide pin 35 abuts.
4 and a concave portion 49 provided on the upper surface. The angle between the stopper surface 64 and the concave portion 49 is, for example, 90 ° as shown in FIG. In accordance with that, the water transmission mode indicator 50
The position of the air supply mode index 51 is as shown in FIG.

Next, the operation of the second embodiment will be described. Air / water switching valve 29 and plug 3 in each cylinder
FIG. 5 shows a state in which the integrated cylinder opening gripping portion 26 and the main body 27 are slid laterally after the 0 is inserted, and the guide pin 35 abuts against the stopper surface 64, which is referred to in the first embodiment. State 3 (water supply mode). The state of each pipeline at this time is the same as that in FIG.

From this state, FIG. 6 shows a state in which the gripping projection 62 is gripped with a finger and once pulled upward, then rotated by 90 ° to fit the guide pin 35 into the recess 49. This state is the state of FIG. 4 (air supply mode) in the first embodiment, and the state of each pipeline at this time is also the same as FIG. That is, the operation difference of the first embodiment is different from the first embodiment in that the air / water switching valve 29 is once pulled up and then rotated by 90 ° to switch to the air supply mode.

The effect of the second embodiment is the same as that of the first embodiment. However, in terms of external form, the overall length of the slide can be made slightly smaller than that of the first embodiment, because the overall length of the slide can be made shorter. FIG. 7 shows a third embodiment, and the same components as those of the first and second embodiments are denoted by the same reference numerals and description thereof is omitted. In this embodiment, the mode switching projection 63 of the second embodiment is separate from the main body 27. (A) is a water supply mode, and (b) is an air supply mode.

The thickness of the mode switching plate 65 is, for example, as shown in FIG.
L. A water supply mode indicator 50 is provided on the main body 27 side, and an air supply mode indicator 51 is formed on the mode switching plate 65. The mode switching plate 65 and the connecting plate 28 are connected by a chain or the like.

The operation of the third embodiment is as follows. After the convex portion 62 for gripping provided on the head of the air / water switching valve 29 is pulled up, the mode switching plate 65 is connected to the main body 27 and the guide pin 3.
5 and switch to the air supply mode. Note that FIG.
(A) shows a water supply state, and FIG. (B) shows an air supply state, and the effect is the same as in the first and second embodiments.

FIGS. 8 and 9 show a waterproof cap 67 for washing mounted on the electrical connector section 66 of the endoscope. The waterproof cap 67 is connected to the connector section 4 by a metal chain 69 or the like. During the inspection, the waterproof cap 67 was not required, so it had to be dropped down or placed on the housing 68 of the video processor or the light source 70. for that reason,
If there is any leakage current from the internal circuit in the case where the metal chain 69 is in contact with the case 68, the current may flow through the metal chain 69 to the scope exterior metal. For example, there is a method in which a metal chain 69 is used as an insulating member to take countermeasures.

FIG. 8 is a side view of the connector section 4 connected to the light source 70, which is also in a state at the time of inspection. The connector part 4 includes a connection part 71, a connector part main body 72, and a universal side buckling prevention part 73, and a waterproof cap mounting member 74 to which the other end of the metal chain 69 having one end to which the waterproof cap 67 is connected is connected to the connector part. Main body 72 and buckling stopper 73
It is sandwiched between and fixed.

FIG. 9 (b) is a front view, a side view and a plan view of the waterproof cap mounting member 74, and FIG. 9 (a) is a view seen from the rear of the connector main body 72 to which the waterproof cap mounting member 74 is mounted. is there.

A waterproof cap storage space 75 is formed on the upper portion of the waterproof cap mounting member 74, and only when the waterproof cap storage space 75 is assembled as shown in FIG.
It has a shape that has the function of That is,
To be more precise, the place where the waterproof cap 67 is placed is formed by the connector outer member 76 of the connector body 72 and the waterproof cap mounting member 74.

According to the configuration described above, the size of the waterproof cap mounting member 74 can be reduced. Further, the shape characteristic of the waterproof cap attaching member 74 is substantially T-shaped as shown in FIG.
It is shaped like a letter, and functionally unnecessary parts are excavated as much as possible. In addition, also in fixing, it is a non-adhesive fixing structure that is merely sandwiched. A rotation regulating projection 77 is formed on the waterproof cap mounting member 74 side, and a rotation regulating recess 78 is formed on the connector part main body 72 side. As a result, the washing property and the drainage drying property are good.

According to the above-described embodiment, the following configuration is obtained. (Supplementary Note 1) A plurality of cylinders connected in the middle of the fluid line are arranged in parallel with the operation unit, and the line operation valve is for cleaning the inside of the fluid line of the endoscope detachable from the cylinder from the outside. In an endoscope pipeline cleaning device for sealing a cylinder opening from the outside after removing a pipeline operation valve, a connector-side water supply pipeline in an air / water supply cylinder with a suction cylinder opening sealed. Means for selectively communicating the distal-side air supply line, the distal-side water supply line, and the connector-side air-supply line with the distal-side air supply line and the distal-side water supply line, and providing a means capable of maintaining each state. An endoscope conduit cleaning device.

(Supplementary Note 2) A first state in which at least the connector side water supply line and the distal end side water supply line communicate with each other in the insertion portion, and a second state in which at least the connector side air supply line and the distal end side air supply line communicate with each other. 2. The endoscope channel cleaning apparatus according to claim 1, further comprising means for maintaining a state.

(Appendix 3) An endoscope according to appendix 1, wherein means for switching between the first state and the second state in the operation section is provided integrally with the cylinder opening gripping portion locked to the cylinder section. Mirror pipe cleaning device.

On the other hand, in the bending tube portion of the endoscope, a cylindrical blade fitted on the outer periphery of the bending piece is disclosed in Japanese Patent Application Laid-Open No. 4-3579.
As disclosed in Japanese Patent Publication No. 21, an endoscope has been proposed in which both ends of a curved tube portion are detachably fixed and only a blade assembly can be replaced.

However, the mounting members provided at both ends of the conventional removable blade assembly have inner diameters smaller than the outer diameter of the tip cover firmly adhered and fixed to the tip body. Further, there are some which are smaller than the maximum outer diameter of the tip body. In the latter case, a step is provided in the tip main body, and a mounting member is fixed to a surface having a low step.

When the blade assembly is to be removed, in the case of a mounting member having an inner diameter smaller than that of the tip cover, the tip cover adhered to the tip body is removed by breaking the tip cover, and then the blade assembly is removed. There must be. On the other hand, in the case of a mounting member having an inner diameter smaller than the maximum outer diameter of the tip body, even if the tip cover is removed, it cannot be removed from the tip unless the blade assembly is broken.

According to the present disclosure, the blade assembly can be easily disassembled by removing the blade assembly from the distal end side of the insertion portion, and the blade assembly can be easily assembled. Is to be reduced.

FIGS. 10 and 11 show a first disclosure example.
As shown in FIG. 11, a locking member 80 is fixed to the inside of the tip side of the blade 79. The fixing means may be anything such as solder, adhesive, screw fixing, or caulking. FIG. 7A shows the blade 79 in a natural state, and FIG.
Is reduced in the axial direction so that the inner diameter φB becomes φB> φA.

FIG. 10A shows a state in which the blade with a locking member is brought into the state shown in FIG. The member 80 is fitted and fixed in a notch concave portion 84 provided on the outer periphery of the first bending piece 83.

The specific fixing method is as follows.
After fitting into the notch recess 84, an adhesive such as a silicon-based adhesive is applied to the vicinity or the entire periphery of the locking member 80, and then heat-shrinked by a heat-shrinkable tube 85 indicated by a two-dot chain line. Perform drying. After drying, the heat-shrinkable tube 85 is cut and removed, and then covered with a curved rubber 86.

FIG. 10B is a cross-sectional view taken along the line BB of FIG. 10A. The locking member 80 is fitted into the cutout recess 84 in a state where the locking member 80 does not protrude from the outer diameter of the curved first piece 83. Note that the bending operation wire 87 and the first bending piece 83 are brazed and fixed at the notch concave portion 84.

According to the first disclosed example, when the blade 79 is to be removed when the blade 79 becomes abnormal for some reason, after the curved rubber 86 is removed, the locking member 8 is removed.
After removing the adhesive applied near 0, the locking member 80 is removed from the cutout recess 84. Thereafter, the inner diameter of the blade 79 is changed to the tip cover 82 as shown in FIG.
Inflate it through and pull it out from the tip.

According to the first disclosed example, the blade 79 can be removed and attached from the front end side without breaking or removing the front end cover 82, so that the repairability is good.
In addition, repair costs can be reduced. Since the space of the cutout portion is used, regulation in the axial direction and the rotation direction can be performed without increasing the diameter. Further, since the locking member 80 is not ring-shaped, the degree of freedom when the locking member 80 passes through the outer periphery of the distal end cover 82 is large, and it is particularly effective for an endoscope having a modified cross section.

FIG. 12 shows a second disclosed example, and relates to a structure for fixing the air / water supply nozzle 6 of the distal end component 5. The inner and outer diameters of the air / water nozzle 6 are eccentric, and a cutout portion 89 is provided in the thickened portion, and a fixing member 90 is applied to the cutout portion 89 to cover the air / water supply nozzle 6 with the front cover 82. It is fixed to. According to the second disclosure example, with simple processing,
The air / water supply nozzle 6 can be fixed and stopped from rotating.

FIG. 13 shows a third example of disclosure, and relates to a structure for fixing the air / water supply nozzle 6 of the distal end component 5. An elastic member 91 is outsert on the outer surface of the air / water supply nozzle 6 and is press-fitted into the distal end cover 82 or the distal end body 81. Note that the outer surface of the elastic member 91 may be further provided with irregularities to provide a hook. According to the third disclosed example, the air / water supply nozzle 6 is hard to come off during the inspection, and the repairability is very good.

FIGS. 14 and 15 show a fourth disclosure example.
This shows a structure in which a part of the distal end cover 82 is extended and the distal end cover 82 is fixed to the distal end portion main body 81 by winding a curved rubber 86. Conventionally, as shown in FIG.
An extension 93 having a tapered surface 92 whose diameter decreases toward the rear end is provided at the rear end of the front cover 82, and a thread of a curved rubber 86 is wound on the extension 93. Was. However, since the thread is wound on the tapered surface 92 having a smaller diameter toward the rear end, a stress that pushes the front cover 82 toward the front end is always applied. There was a possibility that water was leaked due to peeling.

FIG. 15A shows a tapered surface 92 having a larger diameter toward the rear end, and FIG. 15B shows a groove 94 provided on the outer periphery of the extension 93. Therefore, in both cases, the stress applied to the tip cover 82 in the peeling direction can be reduced.

FIGS. 16 to 18 show a fifth disclosure example, and FIGS. 16 and 17 show the structure of a detachable tip cover 95 with a nozzle. First, referring to FIGS. 16 and 17, the tip cover is composed of two members, one is the tip cover 95 with the nozzle, and the other is the fixed tip cover 96. Both are made of electrically insulating resin.

As shown in FIG. 17, the fixed-type tip cover 96 is fixed to the tip body 81 with fixing pins 97 and is fixed by bonding. As shown in FIG. 16, for example, a substantially H-shaped convex portion 98 is formed on the outer periphery of the fixed type front cover 96. In addition, on the outer periphery of the fixed type tip cover 96,
As shown in FIGS. 16 and 17, a slide groove 99 extending in the axial direction of the insertion portion 1 is formed.

Further, an observation window 100, an illumination window 101, and a suction port 7 are provided on the distal end side end surface of the fixed type distal cover 96. A seal member 103 is disposed around the opening of the air / water supply opening 102 of the distal end main body 81 between the distal end main body 81 and the fixed distal end cover 96, and the distal end surface of the seal member 103 is on the surface. It is exposed.

In a state where the tip cover 95 with the nozzle is mounted on the fixed type tip cover 96, the tip cover 9 with the nozzle 9
The back surface 105 of the nozzle portion 5 except for the nozzle opening portion 106 is firmly and water-tightly adhered to the front end surface of the sealing member 103 all around.

FIG. 18 shows the tip cover 9 with a nozzle.
5 is a perspective view of FIG. A T-shaped slit 107 is formed on the side surface, and a positioning projection 108 extending in the axial direction is formed on the inner surface.
Is provided. The mounting method is such that the positioning projection 108 is inserted in accordance with the slide groove 99 and the T-shaped slit 10 is inserted.
The H-shaped protrusion 98 is fitted to and fixed to 7. H-shaped protrusion 98
Is H-shaped, the rotation and the axial direction can be regulated. When detaching, a screwdriver or the like is inserted into a detaching concave portion 109 provided in the H-shaped convex portion 98, and the fixing portion 110 of the tip cover 95 with nozzle is bent and broken to be detached.

According to the fifth disclosed example, the sealing member 103
Is provided on the scope main body side, so that even if the tip cover 95 with the nozzle is attached somewhat coarsely,
Since 05 is securely sealed, liquid leakage does not occur from the side and the influence on the air supply and the water supply amount is small. Further, since a seal member is not required on the tip end cover 95 with the nozzle, the cost can be reduced.

FIG. 19 shows a sixth disclosure example, and relates to a method of fixing the blade 79 of the curved portion. Both ends of the blade 79 are extended to below the thread bonding portion 111 of the curved rubber 86, and the fixing of the blade 79 also serves as the thread bonding portion 111. According to the sixth disclosure, the blade 79 can be easily replaced, and the outer diameter of the fixing portion does not increase.
Further, in order to further improve the assemblability, the both ends of the blade 79 may be temporarily tied and then covered with the curved rubber 86 and wound and adhered.

FIGS. 20 and 21 show a seventh disclosure example.
20 and 21 relate to a sliding tube for straightening the intestinal tract in the lower digestive tract. In the past, the intestinal wall was pinched between the scope and the sliding tube, which could cause injury. 20 and 21 aim to provide a safe sliding tube that does not damage the intestinal wall.

As shown in FIG. 20, the insertion part 1 of the scope
An auxiliary insertion tube 114 is interposed between the sliding tube 112 and one end thereof, and one end thereof is fixed to the patient near the anal entrance. When the sliding tube 112 is inserted along the insertion portion 1, the insertion auxiliary tube 1 is inserted.
Sliding tube 1 because 14 moves in the direction of the arrow
The distal end of the twelve does not involve the intestinal wall.

As shown in FIG. 21, a watertight section 115 for watertight between the sliding tube 112 and the insertion section 1 is provided on the hand side of the sliding tube 112, and air is supplied between the sliding tube 112 and the insertion section 1. There is provided an air supply means. Always slide tube 112 and insertion part 1
By sending air from between these points, the tip of the sliding tube 112 is prevented from getting caught. Arrows indicate air flow.

According to each of the disclosed examples, the following configuration can be obtained. (Supplementary Note 4) The insertion portion has a distal end portion, and a curved tube portion which is located closer to the hand side than the distal end portion and which has a plurality of bending pieces connected in a tiltable manner and which has a blade fitted on the outer periphery thereof. Then, in an endoscope provided with a concave portion for fixing a bending operation wire on the outer periphery of the bending piece at the tip of the bending piece, at least one or more locking members are fixed inside the tip side of the blade,
An endoscope wherein the locking member is engaged with the concave portion for fixing the bending operation wire from outside.

According to the above construction, even if the blade is damaged or the tip cover is fixed to the tip body, the blade can be easily removed from the endoscope tip without removing the tip cover. Can be. Also,
A new blade assembly can be inserted for easy assembly.

[0073]

As described above, according to the present invention,
Water washing can be performed reliably. Since the inside of the pipeline can be washed and drained with hands free except for the switching operation, no labor is required. Further, since the suction cleaning can be performed at the same time, the total cleaning time can be reduced. There is an effect that only an air supply pump and a suction pump of a light source used for normal inspection are required, and a special cleaning pump is not required.

[Brief description of the drawings]

FIG. 1 is an overall configuration diagram of an endoscope according to a first embodiment of the present invention.

2 (a) is a plan view, FIG. 2 (b) is a side view, FIG. 2 (c) is a sectional view taken along line AA, and FIG. 2 (d) is a bottom view.

3A and 3B show a cylinder portion of the embodiment, wherein FIG. 3A is a plan view, and FIG. 3B is a longitudinal side view.

4A and 4B show a cylinder portion of the embodiment, wherein FIG. 4A is a plan view and FIG.

FIGS. 5A and 5B show a cylinder portion according to a second embodiment of the present invention, wherein FIG. 5A is a plan view and FIG.

6A and 6B show a cylinder portion of the embodiment, wherein FIG. 6A is a plan view and FIG.

FIG. 7 is a plan view of a cylinder section according to a third embodiment of the present invention, in which (a) is a water supply mode and (b) is an air supply mode.

FIG. 8 is a partially cutaway side view of a connector according to a fourth embodiment of the present invention.

9A and 9B show the same embodiment, wherein FIG. 9A is a rear view of a waterproof cap attaching member, and FIG. 9B is a front view, a side view, and a plan view of the waterproof cap attaching member.

FIGS. 10A and 10B show a first disclosure example, in which FIG. 10A is a longitudinal sectional side view of a blade, and FIG. 10B is a sectional view taken along line BB.

11A and 11B show the disclosure example, in which FIG. 11A is a front view and a side view of a natural state of a blade, and FIG. 11B is a front view and a side view of a state where the blade is compressed in an axial direction.

FIG. 12 shows an air / water supply nozzle according to a second disclosure example;
(A) is a vertical side view, (b) is a cross-sectional view along line CC.

FIG. 13 is a longitudinal sectional side view showing an air / water supply nozzle according to a third disclosure example.

FIG. 14 is a vertical sectional side view of a distal end portion main body showing a fourth disclosure example.

FIG. 15 is a longitudinal sectional side view of the distal end portion main body according to the embodiment of the disclosure.

16A and 16B show a tip cover with a nozzle according to a fifth disclosure example, where FIG. 16A is a front view of the tip body, FIG. 16B is a view as viewed from the direction of arrow D, and FIG. 16C is along line EE. Sectional view.

FIG. 17 is a transverse cross-sectional view showing an attached state of the tip cover with nozzle according to the embodiment of the disclosure;

FIG. 18 is a perspective view of a tip cover with a nozzle according to the embodiment of the disclosure.

FIG. 19 is a longitudinal side view of a bending portion of an endoscope showing a sixth disclosure example.

FIG. 20 is a view showing a usage state of the sliding tube of the seventh disclosure example.

FIG. 21 is a view showing a use state of the sliding tube of the example of the disclosure.

FIG. 22 is an overall configuration diagram of a conventional endoscope conduit cleaning device.

FIG. 23 is an overall configuration diagram of a conventional endoscope conduit cleaning apparatus.

[Explanation of symbols]

 2 ... operation part 8 ... air supply / water supply cylinder 9 ... suction cylinder 10 ... distal end side air supply line 11 ... distal end side water supply line 18 ... connector side air supply line 19 ... connector side water supply line

Claims (1)

[Claims] 1. A plurality of cylinders connected in the middle of a fluid line are arranged in parallel with an operation unit, and a line operation valve is used to wash the inside of a fluid line of an endoscope detachable from the cylinder from the outside. For this reason, in an endoscope pipeline cleaning device for sealing the cylinder opening from the outside after removing the pipeline operation valve, the connector side transmission in the air / water supply cylinder with the suction cylinder opening sealed. The water conduit can be selectively communicated with the distal end side air supply line and the distal end side water supply line and the connector side air supply line with the distal end side air supply line and the distal end side water supply line, and each state can be maintained. Means for cleaning a conduit for an endoscope, characterized by comprising means.