JPH11137516A - Endoscope apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an endoscope apparatus which easily enables washing in a short time after the operation with a simple structure and simpler preparatory work before the operation. SOLUTION: An adaptor 17 is arranged to be detachably mounted on an inserting part 2 covering a fluid path-forming groove 14 of the inserting part 2. An inserting part passage 21 is formed between the adaptor 17 and the external surface of the inserting part 2 to be extended between the tip part side and the operating part 3 side of the inserting part 2 at the time when the adaptor 17 is mounted on the inserting part 2, while the operating part 3 is provided with an operating part passage 11 to be penetrated into the inserting part passage 21.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an endoscope apparatus provided with a fluid passage disposed between a distal end of an elongated insertion portion to be inserted into a lumen and an operation portion on a hand side.

[0002]

2. Description of the Related Art Generally, as an endoscope apparatus, for example, as disclosed in Japanese Patent Application Laid-Open No. Hei 8-228998, a distal end portion of an elongated insertion portion to be inserted into a lumen and an operation portion on a hand side. Conventionally, a configuration in which a fluid passage is provided in a fluid passage is known.

[0003] Here, an external cleaning sheath is provided which is mounted over the outer peripheral portion of the insertion section of the endoscope. The cleaning sheath is provided with a pipe portion mounted over the outer peripheral surface of the insertion portion of the endoscope, and a sheath body connected to the proximal end of the pipe portion on the proximal side. The sheath main body is mounted on the operation unit of the endoscope. In addition, a substantially ring-shaped flange is formed at the foremost edge of the pipe inwardly at a substantially right angle. At least one nozzle for ejecting a cleaning liquid to the observation window of the endoscope is provided on the inner wall surface of the flange. Further, a valve device for controlling the supply and suction of the fluid is attached to the operation unit of the endoscope.

Japanese Patent Application Laid-Open No. Hei 6-254039 discloses that a nozzle capable of jetting washing water into an observation window provided at a distal end of an insertion portion of an endoscope is provided at a distal end of the insertion portion of the endoscope. An endoscope apparatus provided with a water supply pipe for supplying cleaning water to a nozzle portion is incorporated in the endoscope.

Further, Japanese Utility Model Laid-Open Publication No. Hei 6-68702 discloses an endoscope cover with a channel having an endoscope insertion channel and a forceps insertion channel provided independently of the endoscope insertion channel. .

[0006]

SUMMARY OF THE INVENTION Incidentally, Japanese Patent Application Laid-Open No.
In the apparatus of Japanese Patent No. 228998, the following preparation work is performed before the operation. That is, a cleaning sheath and a valve device for controlling supply and suction of a fluid are attached to the endoscope, and the cleaning sheath and the valve device are connected by a tube. Subsequently, tubes are connected between the valve device and the water supply source, and between the valve device and the suction source. However, there is a problem that the preparation work before the operation is complicated, the preparation work takes time, and the operation time is prolonged.

Further, since the pipe portion of the externally attached cleaning sheath is mounted over the entire outer peripheral portion of the insertion portion of the endoscope, the outer diameter of the insertion portion of the endoscope is set when the cleaning sheath is mounted. There is a problem that the size becomes large.

In Japanese Patent Application Laid-Open No. Hei 6-254039, when the endoscope is cleaned after the operation, the outer surface of the endoscope is cleaned using a cleaning tool such as a sponge, and then the endoscope is built into the endoscope. An operation is performed in which a cleaning brush is inserted into the inside of a water supply pipe, and the inner surface of the water supply pipe is washed with the cleaning brush. However, since the length of the water supply line provided between the distal end portion of the insertion portion of the endoscope and the operation portion on the hand side is very long, the entire inner surface of the water supply line is extended over the entire length of the water supply line. However, there is a problem that it takes a long time to sufficiently perform cleaning.

Furthermore, in Japanese Utility Model Laid-Open No. 6-68702, there is a problem that the structure of the endoscope cover is complicated since the endoscope insertion channel and the forceps insertion channel are separate conduits.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has as its object to provide an endoscope which has a simple structure, can be easily prepared before surgery, and can be easily cleaned after surgery in a short time. It is to provide a device.

[0011]

According to the present invention, there is provided an endoscope apparatus in which a proximal operation portion is connected to a proximal end portion of an elongated insertion portion inserted into a lumen. The insertion portion is detachably attached to the insertion portion in a covering state, and extends between the distal end portion side of the insertion portion and the operation portion side when attached to the insertion portion, outside the insertion portion. An endoscope apparatus comprising: a flow path forming unit formed between the operation section; and an operation section flow path that communicates with the insertion section flow path. Preparation work before use only requires attaching the flow path forming means to the insertion section and connecting the base of the operation section flow path of the operation section on the hand side to the water supply pump and the suction pump with a tube. At this time, since the channel forming means is attached to the insertion portion while covering at least a part of the insertion portion, there is no possibility that the outer diameter of the insertion portion becomes large. Also, when the channel forming means is removed from the insertion portion, the insertion portion is entirely on the outer surface,
The cleaning after the operation can be easily performed in a short time.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. 1 to 4 (A) to 4 (D). FIG. 1 shows a schematic configuration of the entire endoscope 1 in the endoscope apparatus according to the present embodiment. The endoscope 1 of the present embodiment has an elongated insertion portion 2 inserted into a lumen, and the insertion portion 2
And an operation unit 3 on the near side, which is connected to the base end.

Here, the insertion section 2 is provided with, for example, a metal hard sheath 4. The rigid sheath 4 of the insertion portion 2
An unillustrated objective lens and illumination lens are provided on the tip side.

The operation unit 3 has a universal cord 5
Are connected to each other. This universal code 5
The connector 6 is connected to the tip of the. A light source connecting portion 7 protrudes from a terminal portion of the connector 6. The light source connection section 7 is connected to a light source device (not shown).

Further, one end of a connection cord 8 is connected to the outer peripheral surface of the connector 6. The other end of the connection cord 8 is connected to a processor connection unit 9. The processor connection section 9 is connected to a video processor (not shown).

A base 10 protrudes from the outer peripheral surface of the operation unit 3. A suction pump (not shown) and a tube (not shown) connected to an air supply pump are connected to the base 10.

In addition, as shown in FIG. 2A, an operation section pipe (operation section flow path) 11 is provided in the operation section 3.
The proximal end of the operation section conduit 11 is communicated with the base 10. Further, the distal end of the operation section conduit 11 extends toward the insertion section 2.

A large-diameter adapter mounting portion 12 is formed at a connection portion of the insertion portion 2 with the operation portion 3 on the rear end side. As shown in FIG. 2 (C), a concave groove 13 is formed on the outer peripheral surface of the adapter mounting portion 12. The opening of the distal end of the operating section conduit 11 is communicated with the groove 13.

The outer peripheral surface of the insertion portion 2 is shown in FIG.
As shown in (B), an elongated fluid passage forming groove 14 extending in the same direction as the central axis of the insertion portion 2 is formed. As shown in FIG. 2 (A), the fluid passage forming groove 14
From the front end portion to the adapter mounting portion 12 on the rear end side. Further, as shown in FIG. 2B, an opening surface 14a on the groove wall surface on both sides of the fluid passage forming groove 14 is formed.
On the sides, engagement projections 15 for attaching an adapter are provided to project inward.

The adapter mounting portion 12 of the insertion portion 2
As shown in FIG. 2 (A), FIG.
As shown in (D), a ring-shaped adapter fixing groove 16 is provided.

Further, the insertion section 2 of the endoscope 1 of the present embodiment
An adapter (flow path forming means) 17 formed of an elastic body such as rubber, elastomer, or the like is detachably attached to the adapter. FIG.
(A) As shown in FIG.
An elongated conduit seal 19 is provided.

Here, the conduit seal portion 19 is formed in a size to cover the opening surface 14a of the fluid passage forming groove 14 of the insertion portion 2. Further, both side surfaces of the pipeline seal portion 19 are shown in FIG.
As shown in (B), the engagement groove 20 is provided over substantially the entire length. The engagement protrusions 15 on both sides of the fluid passage forming groove 14 of the insertion portion 2 are inserted into these engagement grooves 20.

When the adapter 17 is mounted on the insertion section 2 of the endoscope 1, as shown in FIG. 4B, the opening surface 14a of the fluid passage forming groove 14 of the insertion section 2 is In the state covered by the groove 19, the engaging projections 15 on both sides of the fluid passage forming groove 14 of the insertion portion 2 are inserted into the engaging groove 20 of the conduit seal portion 19, and are engaged to be watertightly fixed. Has become. At this time, as shown in FIGS. 4A and 4B, an insertion portion flow path 21 is formed between the conduit seal portion 19 and the inner bottom portion (outer surface of the insertion portion 2) of the fluid passage forming groove 14. It is supposed to be.

Further, a nozzle forming part 22 is formed to be bent downward in FIG. 3A at the distal end side of the conduit seal part 19. When the adapter 17 is attached to the insertion section 2 of the endoscope 1 as shown in FIG. 4A, the insertion section flow path 2 is located between the nozzle constituting section 22 and the distal end surface of the insertion section 2.
1 is formed with a gap communicating with the tip of the insertion section 2, and the nozzle 23 for ejecting the cleaning liquid toward an observation window (not shown) provided on the tip of the insertion section 2 is formed by the gap. .

A fixed ring 18 is connected to the base end of the pipe seal 19. This fixing ring 18
As shown in FIG. 4 (C), is formed to have a size that is fitted around the adapter mounting portion 12 of the insertion portion 2. Further, a ring-shaped convex portion 24 having a shape corresponding to the adapter fixing groove 16 in the adapter mounting portion 12 of the endoscope 1 is provided at the base end of the fixing ring portion 18 so as to project inward.

When the adapter 17 is attached to the insertion section 2 of the endoscope 1, the projection 24 of the fixing ring 18 is provided.
Is fitted in the adapter fixing groove 16 of the endoscope 1 so that a watertight state is ensured. At this time, FIG.
(C) As shown in FIG.
As shown in FIG. 4 (A), communication between the operation section conduit 11 and the insertion section flow path 21 is made to pass through a gap between the control section pipe 11 and the fixing ring section 18 of the adapter 17.

Next, the operation of the above configuration will be described.
In the present embodiment, preparation work before use of the endoscope 1 is performed in advance as follows. First, an operation of attaching the adapter 17 to the insertion section 2 of the endoscope 1 is performed. During this mounting operation, the insertion section 2 of the endoscope 1 is passed through the fixing ring section 18 of the adapter 17 and the adapter mounting section 1 of the endoscope 1 is inserted.
2 is fitted with the fixing ring 18 of the adapter 17. At this time, the projection 24 of the fixing ring 18 is
In the adapter fixing groove 16 to ensure a watertight state.

Further, the pipeline seal portion 1 of the adapter 17
9 is dropped into the opening surface 14 a of the fluid passage forming groove 14 of the insertion portion 2, so that the engagement protrusions 15 on both sides of the fluid passage formation groove 14 of the insertion portion 2 are fitted into the engagement grooves 20 of the conduit seal portion 19. And fix it.

After the mounting work of the adapter 17 is completed, the base 10 of the endoscope 1 and the water supply pump or the suction pump (not shown) are connected via a tube (not shown).

The water supply liquid injected from the water supply pump (not shown) into the base 10 is formed in the nozzle construction part 22 from the operation part pipe 11 through the groove part 13 of the adapter attachment part 12 and the insertion part flow path 21. Water is sent to the nozzle 23,
It is jetted from the nozzle 23 toward an observation window such as an objective lens surface (not shown).

When the endoscope 1 is to be cleaned after use of the endoscope 1, the adapter 17 is removed from the endoscope 1. At this time, when the adapter 17 is removed from the endoscope 1, the fluid passage forming groove 14 is exposed to the outside, and becomes the outer surface of the endoscope 1. Therefore, when the endoscope 1 is inserted into the body, all of the portion of the insertion section 2 that comes into direct contact with the living tissue or the body fluid is only on the outer surface.

Further, when the endoscope 1 of the adapter 17 removed from the endoscope 1 is inserted into the body, only the pipe seal portion 19 and the nozzle component portion 22 are in direct contact with living tissue and body fluid. These outer surfaces are also held in a state of being exposed to the outside.

Therefore, the above configuration has the following effects. That is, in the present embodiment, the preparation work before using the endoscope 1 is performed by connecting the adapter 17 to the insertion section 2 of the endoscope 1.
And the base 1 of the operation section flow path 11 of the operation section 3 on the hand side.
It is only necessary to connect 0 to a water supply pump and a suction pump by a tube. Therefore, the preparatory work before the operation becomes simpler than before.

Further, the conduit seal portion 19 of the adapter 17 is mounted on the insertion portion 2 so as to cover the fluid passage forming groove 14 formed on a part of the outer peripheral surface of the insertion portion 2. There is no possibility that the outer diameter of the insertion portion 2 becomes large unlike the case where the entire outer peripheral surface of the insertion portion 2 is covered.

When the adapter 17 is removed from the insertion section 2, the fluid passage forming groove 14 is also exposed to the outside.
, The entire insertion portion 2 becomes the outer surface. Therefore, there is an effect that the cleaning operation after the operation can be easily performed in a short time.

Further, since the conduit 11 which is not exposed to the outside in the main body of the endoscope 1 is provided only in the operation section 3, the length of the conduit can be shortened, and the endoscope 1 can be easily cleaned. . Further, since the operation section conduit 11 in the operation section 3 can be provided with a relatively large inner diameter, the operation of inserting a cleaning tool such as a cleaning brush (not shown) into the operation section conduit 11 is simplified. There is also an effect that the cleaning operation can be easily performed in a short time.

FIGS. 5A to 5H show the second embodiment of the present invention.
1 shows an embodiment of the present invention. In the present embodiment, a part of the configuration of the endoscope apparatus of the first embodiment (see FIGS. 1 to 4A to 4D) is changed as follows. Since the other parts have the same configuration as the first embodiment, FIGS. 5A to 5H show FIGS.
The same parts as (A) to (D) are denoted by the same reference numerals, and the description thereof will be omitted. Only different parts will be described here.

That is, in the present embodiment, an operation section conduit 31 having a different configuration from the operation section conduit 11 of the first embodiment is provided inside the operation section 3 of the endoscope 1, and the adapter 17 is provided to the adapter 17. An insertion tube 32 to be inserted into the operation section conduit 31 is provided.

Here, the operation section conduit 31 extends in the center axis direction of the insertion section 2 as shown in FIG. The distal end opening 31a of the operating section conduit 31 is inserted into the insertion section 2
And is communicated with a fluid passage forming groove 14 on the outer peripheral surface of the insertion portion 2. further,
The rear end of the operation section conduit 31 communicates with a rear end opening 31 b formed on the outer peripheral surface of the operation section 3.

The insertion tube 32 of the adapter 17
Is formed of a soft material. The distal end of the insertion tube 32 is connected to the rear end of the pipeline seal 19 inside the fixing ring 18 of the adapter 17. Here, the distal end portion of the insertion tube 32 is opened along the bottom surface of the conduit seal portion 19. Further, a rear end of the insertion tube 32 can be connected to a base (not shown). Note that the outer diameter of the insertion tube 32 is set smaller than the inner diameter of the operation section conduit 31 of the endoscope 1.

When the adapter 17 is attached to the insertion section 2 of the endoscope 1, the insertion tube 32 of the adapter 17 is connected to the operation section conduit of the operation section 3 as shown in FIGS. 31. Further, the rear end of the insertion tube 32 projects outward from the rear end opening 31b of the outer peripheral surface of the operation section 3.

The front end of the insertion tube 32 communicates with the insertion portion flow path 21 between the conduit seal portion 19 and the inner bottom portion (outer surface of the insertion portion 2) of the fluid passage forming groove 14. ing.

Next, the operation of the above configuration will be described.
In the present embodiment, preparation work before use of the endoscope 1 is performed in advance as follows. First, the adapter 17 is attached to the insertion section 2 of the endoscope 1. Adapter 1
7, the insertion part 2 of the endoscope 1 is passed through the fixing ring part 18,
At the same time, an operation of inserting the insertion tube 32 into the operation section conduit 31 of the operation section 3 is performed. At this time, a tube connected to a suction pump or a water supply pump is connected to an end of the insertion tube 32 protruding out of the operation unit 3 via a base (not shown). The other operations are the same as in the first embodiment.

Therefore, the above configuration has the following effects. That is, in the present embodiment, when the endoscope 1 is used, the insertion tube 32 connected to the adapter 17 is used.
Is set in a state where the endoscope 1 is inserted into the operation section conduit 31 in the operation section 3. When the endoscope 1 is cleaned after use of the endoscope 1, the insertion tube 32 is inserted together with the adapter 17. It can be removed from the endoscope 1. Therefore, a cleaning / sterilization method that cannot be performed by the endoscope 1 such as an autoclave is selected, and the insertion tube 32 and the adapter 17 are selected together.
Can be washed and sterilized. Other effects are the same as those of the first embodiment.

FIGS. 6A to 6F show a third embodiment of the present invention.
1 shows an embodiment of the present invention. In the present embodiment, a part of the configuration of the endoscope apparatus of the first embodiment (see FIGS. 1 to 4A to 4D) is changed as follows. Since the other parts have the same configuration as the first embodiment, FIGS. 6A to 6F show FIGS.
The same parts as (A) to (D) are denoted by the same reference numerals, and the description thereof will be omitted. Only different parts will be described here.

That is, in the present embodiment, as shown in FIG. 6C, a large-diameter adapter fixing portion is provided at the base end of the grip portion 41 disposed on the distal end side of the operation portion 3 of the endoscope 1. 42
Is provided. Here, the cross-sectional shape (the cross-sectional shape along line 6D-6D in FIG. 6C) of the grip portion 41 is shown in FIG.
It is formed in a substantially oval shape as shown in FIG. Further, a notch 43 is formed on the upper surface of the grip portion 41 by cutting out an arc-shaped portion in a plane.

As shown in FIG. 9 (E), the adapter 17 is provided with a grip cover 44 having a shape (substantially similar shape) substantially corresponding to the grip portion 41 of the operation portion 3. At the rear end of the grip cover 44, an operation section fixing section 45 is provided. The operation portion fixing portion 45 is fitted to the adapter fixing portion 42 of the grip portion 41 so as to be detachably engaged therewith.

Further, a base 46 protrudes from the outer peripheral surface of the grip cover 44 at a position near the operation section fixing section 45. The inner end of the base 46 is opened to the inner surface of the grip cover 44.

FIG. 6F shows a cross-sectional shape of the grip cover 44 along the line 6F-6F. This figure 6
As shown in (F), an arc-shaped portion 44a is formed on the upper surface of the grip cover 44.

When the adapter 17 is mounted on the insertion section 2 of the endoscope 1, the grip cover 44 is mounted so as to cover the grip section 41 as shown in FIGS. 6 (A) and 6 (B). At this time, an operation part conduit 47 is formed between the arc-shaped part 44 a on the upper surface of the grip cover 44 and the notch 43 on the upper surface of the grip part 41. Further, when the adapter 17 is assembled to the insertion section 2 of the endoscope 1, the space between the adapter fixing section 42 and the operation section fixing section 45 is watertightly fixed. Further, the operation section conduit 47 is configured to communicate with the base 46 and the insertion section flow path 21.

Next, the operation of the above configuration will be described.
In this embodiment, preparatory work before use of the endoscope 1 is performed in advance.
It is performed as follows. First, the grip portion 41 of the insertion portion 2 is inserted into the grip cover 44 of the adapter 17, and the operation portion fixing portion 45 and the adapter fixing portion 42 are fitted. Further, a tube connected to a suction pump or a water supply pump is connected to the base 46.

Then, a water supply pump (not shown)
The water supply liquid injected into 6 is supplied to the nozzle 23 from the operation part pipeline 47 via the insertion part flow path 21. Further, nozzle 2
The water supply liquid supplied to 3 is jetted toward an objective lens surface (not shown). In addition, at the time of suction, suction is performed while flowing in the same conduit in the opposite direction.

After the use of the endoscope 1, when cleaning the endoscope 1, the adapter 17 is detached from the endoscope 1.
At this time, the base 46 is cleaned by brushing. Other operations are the same as those of the first embodiment.

Therefore, the above configuration has the following effects. That is, in the present embodiment, the adapter 1
Since there is no thin pipe in 7, the cleaning property is good. further,
Since the pipe (base 46) of the adapter 17 is short and thick, brushing becomes easy. In addition, in the present embodiment, since the endoscope 1 has no conduit, the endoscope 1 has good cleaning properties. Other effects are the same as those of the first embodiment.

FIGS. 7 to 9 show a fourth embodiment of the present invention. In the present embodiment, a part of the configuration of the endoscope apparatus of the first embodiment (see FIGS. 1 to 4A to 4D) is changed as follows. Since the other parts have the same configuration as the first embodiment, FIGS. 1 to 4 (A) to FIG.
The same parts as in (D) are denoted by the same reference numerals, and the description thereof will be omitted. Only different parts will be described here.

That is, in the present embodiment, a bending portion 51 that can be bent and deformed is provided on the distal end side of the insertion portion 2 of the endoscope 1. Further, a distal end component 52 is provided on the distal end side of the curved portion 51. An angle lever 53 for bending the bending portion 51 is provided on the operation portion 3 on the hand side of the insertion portion 2.

Further, a lens cleaning sheath 54 is detachably attached to the insertion section 2 of the endoscope 1 according to the present embodiment. The lens cleaning sheath 54 is provided with a rigid tubular sheath body 55.

At the proximal end of the sheath body 55, a substantially ring-shaped insertion portion fixing portion 56 is provided. Further, a sheath curved portion 57 made of a soft material is provided near the distal end of the sheath body 55.

When assembling the endoscope 1 and the lens cleaning sheath 54, as shown in FIG. 8A, the gap between the outer surface of the insertion section 2 of the endoscope 1 and the inner peripheral surface of the lens cleaning sheath 54 is increased. As shown in FIG. 8B, a ring-shaped conduit 58 is formed. The pipe 58 is connected to the operation unit 3 through the groove 13 of the adapter mounting unit 12 shown in FIG.
It is connected to the operation section pipeline 11 inside.

A three-way cock 59 shown in FIG. 9 can be attached to the base 10 of the operation section 3 of the endoscope 1. The three-way cock 59 is provided with a pipeline switching lever 60 and two bases 61 and 62. Here, one end of a tube 63 is connected to one base 61. The other end of the tube 63 is connected to a suction pump (not shown). Further, one end of a tube 64 is connected to the other base 62. The other end of the tube 64 is connected to a water pump (not shown).

In the present embodiment, the tubes 63, 6
A clip 65 for removably fixing the clip 4 is provided. The clip 65 is detachably attached to the universal cord 4.

Next, the operation of the above configuration will be described.
In this embodiment, preparatory work before use of the endoscope 1 is performed in advance.
It is performed as follows. First, the insertion section 2 of the endoscope 1 is inserted into the lens cleaning sheath 54, and the insertion section fixing section 56 and the adapter mounting section 12 of the endoscope 1 are watertightly fixed. Subsequently, tubes 63 and 63 connected to a suction pump or a water supply pump (not shown) are connected to the two bases 61 and 62 of the three-way cock 59.
64 respectively.

In this state, the tube 64 is moved from the water supply pump.
The water supply liquid injected into the base 10 through the base 62 of the three-way stopcock 59 is supplied to the operation section conduit 11 and the adapter mounting section 12.
Is supplied to the nozzle 23 through the groove 13 and the conduit 58. Further, the water supply liquid supplied to the nozzle 23 is jetted toward an objective lens surface (not shown). In addition, at the time of suction, suction is performed while flowing in the same conduit in the opposite direction.

Further, in this embodiment, by switching the conduit switching lever 60 of the three-way cock 59, the switching between the unused state of the conduit, the state of water supply to the nozzle 23, and the state of suction from the tip of the insertion section 2 is performed. It can be selectively performed as appropriate.

After the use of the endoscope 1, when cleaning the endoscope 1, the lens cleaning sheath 54 is detached from the endoscope 1. At this time, the inner surface of the lens cleaning sheath 54 is cleaned using a brush. Other operations are the same as those of the first embodiment.

Therefore, the above configuration has the following effects. That is, since the sheath curved portion 57 made of a soft material is provided near the distal end portion of the sheath main body 55 of the lens cleaning sheath 54, the curved portion 51 is provided on the distal end side of the insertion portion 2 of the endoscope 1. The endoscope 1 with a bending function is also applicable.

In this embodiment, tubes 63 and 64 connected to a suction pump and a water supply pump (not shown) are provided.
Is fixed to the universal cord 5 by the clip 65, so that it does not hinder the procedure.

Further, in this embodiment, when the endoscope 1 and the lens cleaning sheath 54 are assembled, the insertion portion 2 of the endoscope 1 is used.
Since the ring-shaped conduit 58 is formed between the outer surface of the lens and the inner peripheral surface of the lens cleaning sheath 54, it is necessary to increase the outer surface of the conduit 58 to be inserted into the body. Can be. Therefore, after the endoscope 1 is used, the outer surface of the insertion section 2 of the endoscope 1 and the inner peripheral surface of the lens cleaning sheath 54 have good cleaning properties.

When the inexpensive, disposable stopcock 59 is used, the used stopcock 59 is discarded after use of the endoscope 1 and a new three-way stopcock is used at the next use of the endoscope 1. The stopcock 59 can be used in a clean state. Therefore, after using the endoscope 1, it is not necessary to clean the pipe switching unit that switches the supply state of the fluid into the pipe 58 between the insertion section 2 of the endoscope 1 and the lens cleaning sheath 54. Other effects are the same as those of the first embodiment.

FIGS. 10A and 10B show a modification of the fourth embodiment (see FIGS. 7 to 9). That is, in this modification, a connection member 71 having three connection ports 71a, 71b, and 71c is provided in place of the three-way cock 59 of the fourth embodiment. Here, the first connection port 71 a of the connection member 71 is connected to the operation unit 3 of the endoscope 1.
Are connected to the base 10. Further, a tube 63 connected to a suction pump (not shown) is connected to the second connection port 71b of the connection member 71, and a tube 64 connected to a water supply pump (not shown) is connected to the third connection port 71c. I have.

In this modification, a clip 72 for controlling the opening and closing of the tubes 63 and 64 is provided.
As shown in FIG. 10B, the clip 72 has an operation part mounting part 73 detachably mounted on the operation part 3 and a tube opening / closing part 74 for opening and closing the conduits of the tubes 63 and 64.
a and 74b.

Here, the operating portion mounting portion 73 is provided with a pair of holding members 73a and 73b. These holding members 73a and 73b are connected to be rotatable about a connection pin 75.

Further, the clip 72 has a holding member 7.
Spring member 76 for urging in a direction to close between 3a and 73b
And the holding member 73 against the spring force of the spring member 76.
a, an operating arm 77a that operates in a direction to open the space between 73a and 73b.
77b.

Further, tube insertion rings 78a and 78b through which tubes 63 and 64 are inserted are formed at the distal ends of the operation arms 77a and 77b. Further, a tube insertion ring 7 is provided in each of the tube insertion rings 78a and 78b.
Tube pressing members 79a and 79b for opening and closing the tubes 63 and 64 in 8a and 78b are rotatably connected around pins 80a and 80b.

Each of the tube pressing members 79a, 79b
Between the tube insertion rings 78a and 78b in the direction in which the tubes 63 and 64 are closed.
The second spring members 81a and 81b for urging the a and 79b are provided.

The second spring members 81a, 8
Tube pressing members 79a, 79b by the spring force of 1b
Are the tubes 6 in the tube insertion rings 78a and 78b.
The tubes 3 and 64 are crushed, respectively, to hold the tubes 63 and 64 in a closed state. An operation button 8 for moving the tube pressing members 79a, 79b in a direction to open the conduits of the tubes 63, 64 against the spring force of the second spring members 81a, 81b is provided on the tube pressing members 79a, 79b.
2a and 82b are provided. The other configuration is the same as that of the fourth embodiment.

In this modification, the operation arms 77a and 77b of the clip 72 are held between
Between the holding members 73a and 73b, and cover the operation unit 3. Thereafter, by opening the operation arms 77a, 77b, the restoring force of the spring member 76 fixes the operation section 3 between the holding members 73a, 73b of the operation section mounting section 47 with the operation section 3 sandwiched therebetween.

Further, the tube pressing members 79a, 79b
The tubes 63 and 64 crushed by the operation buttons 82
By pressing the a and b, the opening is opened, and water can be supplied to the nozzle 23 and suction can be performed from the distal end of the insertion section 2.

When the operation buttons 82a and 82b are released, the tube pressing members 79a and 79b are moved by the restoring force of the second spring members 81a and 81b, and the tubes 63 and 6 are moved.
4 is crushed and the conduits of the tubes 63 and 64 are closed.
This stops the water supply to the nozzle 23 and the suction from the distal end of the insertion section 2.

The three-way cock 5 of the fourth embodiment is used.
9 and the connection member 71 of the modified example may be applied to the first to third embodiments. 11 and FIG.
(A) and (B) show a fifth embodiment of the present invention. FIG. 11 shows a schematic configuration of the entire endoscope 91 in the endoscope apparatus according to the present embodiment. In the endoscope 91 of the present embodiment, an elongated insertion portion 9 inserted into a lumen is provided.
2 and a hand-side operation unit 93 connected to the base end of the insertion unit 92.

Here, the insertion portion 92 is provided with, for example, a metal hard sheath 94. An unillustrated objective lens and illumination lens are provided on the distal end side of the rigid sheath 94 of the insertion section 92.

The base of the universal cord 95 is connected to the operation unit 93. A light guide connector 96 is connected to the distal end of the universal cord 95. The light guide connector 96 has a light source connecting portion 97 projecting from a terminal portion thereof. This light source connection part 97
Are connected to a light source device (not shown).

Further, one end of a connection cord 98 is branched and connected to the outer peripheral surface of the light guide connector 96. A camera connector 99 is provided at the other end of the connection cord 98.
Are connected. The camera connector 99 is connected to a camera control unit (not shown).

The operation section 93 includes valve devices 100a and 100b for controlling water supply and suction of fluid, and water supply base 1
01a and a suction base 101b are provided. Here, a water supply source 10 such as a water supply pump is connected to the water supply base 101a.
2 is connected to the tube 103. Further, a tube 105 connected to a suction source 104 such as a suction pump is connected to the suction base 101b.

The valve devices 100a and 100b have operation buttons 100a ₁ and 100b ₁ and a seal portion 100a.
₂ and 100b ₂ . The operation buttons 100a ₁ and 100b ₁ are always in the sealing section 100a.
_2, 100b are held ₂ to close in the closed position, is adapted to be switched to the open position to open the seal portion 100a _2, 100b ₂ with the respective operation buttons 100a _1, 100b ₁ of the pressing operation.

FIG. 12A shows the inside of the operation unit 93.
As shown in FIG. 3, three operation section conduits (operation section flow paths) 106,
106a and 106b are provided. Here, the base end of the first operation unit conduit 106 is connected to the valve devices 100a and 100b.
Respectively. Further, the distal end of the first operation section conduit 106 extends toward the insertion section 92 side.

The distal end of the second operating section conduit 106a is connected to the valve device 100a. The proximal end of the second operation section conduit 106a is connected to the water supply base 101a. Further, the distal end of the third operation section conduit 106b is connected to the valve device 100b. The proximal end of the third operating section conduit 106b is connected to the suction base 101b.

The outer peripheral surface of the insertion portion 92 is
As shown in (A) and (B), an elongated fluid passage forming groove 107 extending in the same direction as the central axis of the insertion portion 92 is formed. As shown in FIG. 12 (A), the fluid passage forming groove 107 extends from the distal end to the rear end of the insertion portion 92.
Has been extended. Further, as shown in FIG. 12 (B), conduit-forming member mounting portions 108 are provided inwardly at the outer peripheral surface side openings of the groove wall surfaces on both sides of the fluid passage forming groove 107, respectively.

Also, the fluid passage forming groove 107 of the insertion portion 92
A conduit forming member 109 is detachably attached to the fluid channel forming groove 107 so as to cover the opening on the outer peripheral surface of the fluid channel 107 over the entire length. The conduit forming member 109 is provided with a conduit seal portion 110 and a mounting groove 111 having a shape corresponding to the conduit forming member mounting portion 108 of the insertion portion 92 over the entire length. Note that the conduit forming member 109 is formed of an elastic material such as rubber or estramer.

When the conduit forming member 109 is mounted on the insertion portion 92 of the endoscope 91, as shown in FIG. While being covered by the forming member 109, the pipe forming member mounting portions 108 on both sides of the fluid passage forming groove 107 of the insertion portion 92 are inserted into the mounting groove 111 of the pipe forming member 109, engaged and watertightly fixed. It has become so. At this time, as shown in FIGS. 12A and 12B, the space surrounded by the conduit forming member 109 and the inner bottom portion (outer surface of the insertion portion 92) of the fluid passage forming groove 107 is inserted into the insertion portion flow path. 11
2 are formed. The distal end of the first operating section conduit 106 is connected to the proximal end of the insertion section channel 112.

Further, a nozzle forming portion 113 is formed to be bent downward in FIG. 12A at the distal end side of the pipe forming member 109. When the conduit forming member 109 is attached to the insertion portion 92 of the endoscope 91 as shown in FIG. 12A, the insertion portion is inserted between the nozzle forming portion 113 and the distal end surface of the insertion portion 92. A gap communicating with the distal end of the flow path 112 is formed, and a nozzle 114 for ejecting the cleaning liquid toward an observation window (not shown) provided on the distal end surface of the insertion section 92 is formed by the gap. ing.

Next, the operation of the above configuration will be described.
In the present embodiment, the preparation work before using the endoscope 91 is performed in advance as follows. First, the insertion portion 92 of the endoscope 91
The work of mounting the conduit forming member 109 is performed. During this mounting operation, the conduit forming member 109 is mounted in the fluid passage forming groove 107 of the insertion portion 92. In addition, water supply mouth 1
01a is connected to the tube 103 of the water supply source 102, and the suction base 101b is connected to the tube 1 of the suction source 104.
05 is connected.

After the completion of the preparatory work, the water supply liquid injected from the water supply source 102 into the water supply base 101a is supplied to the valve device 100a through the second operation section conduit 106a. In this state, when pushing the operation button 100a ₁ of the valve device 100a is sealed portion 100a ₂ is switched operated to the open position,
The water supply liquid is supplied to the first operation section conduit 106.

Further, the water supply liquid having entered the first operation section pipe 106 is connected to the pipe forming member 109 and the fluid passage forming groove 107.
Insertion section flow path 1 formed by a space surrounded by
12 and is supplied to the nozzle 114. This nozzle 1
The water supply liquid supplied to 14 is jetted toward a front lens surface (not shown).

[0095] Further, after the water supply, when pushing the operation button 100b ₁ of the valve device 100b, the remaining water on the top lens surface (not shown) is sucked from the nozzle 114, the insertion portion channel 11
2. First operation unit conduit 106, valve device 100b, third operation unit conduit 106b, suction base 101b, tube 10
5 and is sucked by the suction source 104.

When cleaning the endoscope 91 after use,
The pipe forming member 109 is inserted into the fluid passage forming groove 10 of the insertion portion 92.
Remove from 7. At this time, since the fluid passage forming groove 107 of the insertion portion 92 is exposed to the outside of the endoscope 91, the insertion portion 9
2 are all outer surfaces. Further, the pipe forming member 109 removed here is also entirely exposed to the outside.

Therefore, the above configuration has the following effects. That is, in the present embodiment, in preparation for use of the endoscope 91 (before surgery), the conduit forming member 109 is mounted on the fluid passage forming groove 107 of the insertion portion 92 and the water supply source 1
02 and the water supply base 101a of the suction source 104 and the endoscope 91
And the tube 103, 10
Since the connection is simple at 5, the preparation work is reduced as compared with the conventional external sheath. In the meantime, the operator can perform other operations, and the efficiency of the operation increases.

Further, after the operation, the conduit forming member 109 is removed from the fluid passage forming groove 107 of the insertion portion 92, so that the entire fluid passage forming groove 107 of the insertion portion 92 is endoscope 9
1 can be exposed to the outside, and the entire insertion portion 92 can be an outer surface. The endoscope 91 has three operation section conduits 106 and 1 inside the operation section 93 having a short length.
Since only the portions 06a and 106b can be left, the endoscope 91 can be easily cleaned after the operation compared to an endoscope in which a built-in conduit is provided in the insertion portion as in the related art. it can. In addition, since the insertion portion 92 to be inserted into the body cavity is entirely on the outer surface, cleaning sterility is good.

FIGS. 13A to 13C show a sixth embodiment of the present invention. This embodiment is the fifth embodiment.
(See FIGS. 11 and 12A and 12B) is modified as follows. Since the other parts have the same configuration as the fifth embodiment,
13 (A) to 13 (C), FIGS.
The same portions as (A) and (B) are denoted by the same reference numerals and description thereof is omitted, and only different portions will be described here.

That is, in the present embodiment, the distal end cap 121 is attached to the distal end 121 of the insertion section 92 of the endoscope 91.
Are provided detachably with respect to the distal end portion 121. FIG. 13 (C) shows the tip of the tip cap 122.
As shown in FIG. 7, a substantially ring-shaped flange 123 is provided which is bent substantially inward at a right angle. A distal end cap 122 is provided on a part of the flange 123 in the endoscope insertion portion 9.
2 when attached to the tip 121 of the fluid passage
The tongue-shaped nozzle component 124 is provided so as to cover the opening on the tip end side of the nozzle.

Next, the operation of the above configuration will be described.
In the present embodiment, the preparation work before using the endoscope 91 is performed in advance as follows. First, the insertion portion 92 of the endoscope 91
The work of mounting the conduit forming member 109 is performed. During this mounting operation, the conduit forming member 109 is mounted in the fluid passage forming groove 107 of the insertion portion 92. Further, the insertion portion 92
Attach the tip cap 122 to the tip portion 121. Subsequently, the tube 103 of the water supply source 102 is connected to the water supply base 101a.
Is connected, and the suction source 10b is connected to the suction base 101b.
Four tubes 105 are connected.

When cleaning the endoscope 91 after use,
The conduit forming member 109 and the tip cap 122 are attached to the endoscope 9
1 is removed from the insertion portion 92. At this time, since the fluid passage forming groove 107 of the insertion portion 92 is exposed to the outside of the endoscope 91, the entire insertion portion 92 becomes the outer surface. Further, the pipe forming member 109 and the tip cap 122 removed here are all exposed to the outside. Other operations are the same as those of the fifth embodiment.

Therefore, the above configuration has the following effects. That is, in the present embodiment, in addition to the effect that the preparation work before the operation is easy and the post-operation cleaning can be easily performed as in the fifth embodiment, particularly in the present embodiment, the insertion operation in the endoscope 91 is performed. Since the distal end portion 122 of the insertion portion 92 is provided with the distal end cap 122 and the flange 123 is provided at the distal end portion 121 of the insertion portion 92,
The water supply liquid ejected from the opening at the end of the endoscope 7 is more reliably applied to the end lens surface of the observation window of the endoscope 91, and the cleaning ability is good.

FIGS. 14A and 14B show a seventh embodiment of the present invention. This embodiment is a fifth embodiment (FIGS. 11 and 12).
(Refer to (A) and (B)).
Since the other parts have the same structure as the fifth embodiment, the same parts as those in FIGS. 11 and 12A and 12B in FIGS. Are denoted by the same reference numerals and description thereof is omitted, and only different portions will be described here.

That is, in the present embodiment, the nozzle portion 131 is provided integrally with the distal end portion 121 of the insertion portion 92 of the endoscope 91. The nozzle portion 131 is spaced apart and opposed to the opening on the tip end surface side of the fluid passage forming groove 107 with a slight gap.

Furthermore, the fluid passage forming groove 10 of the insertion portion 92
At the rear end of the tube 7, a tube connecting portion 132 is provided. The rear end of the tube connecting portion 132 is fixed to the distal end of the first operating section conduit 106 of the operating section 93.

Also, the fluid passage forming groove 107 of the insertion portion 92
As shown in FIG. 14 (B), the tube member 133 is detachably fitted over the entire length.
Here, the tip of the tube member 133 is the nozzle 131.
In addition, the rear ends are connected to each other while being fitted to the front ends of the tube connecting portions 132. Note that the tube member 133 is formed of a material such as silicon rubber, fluoro rubber, vinyl chloride, polyolefin, or polyethylene.

Next, the operation of the above configuration will be described.
In the present embodiment, the preparation work before using the endoscope 91 is performed in advance as follows. First, the insertion portion 92 of the endoscope 91
The operation of attaching the tube member 133 to the fluid passage forming groove 107 is performed. Further, the tube 103 of the water supply source 102 is connected to the water supply base 101a, and the tube 105 of the suction source 104 is connected to the suction base 101b.

At the time of cleaning after use of the endoscope 91,
The tube member 133 is connected to the fluid passage forming groove 10 of the insertion portion 92.
Remove from 7. At this time, when the tube member 133 is removed, most of the fluid passage forming groove 107 (the portion other than the nozzle portion 131) of the insertion portion 92 is exposed to the outside of the endoscope 91, so that most of the insertion portion 92 is outside. Surface. Other operations are the same as those of the fifth embodiment.

Therefore, the above configuration has the following effects. That is, in the present embodiment, as in the fifth embodiment, the preparatory operation before the operation is simple, and the post-operative cleaning can be easily performed. In addition, in the present embodiment, the tube member 133 is particularly inexpensive. Because there is, the tube member 13
3 can be disposable. Thereby, there is an effect that the cleaning operation after using the endoscope 91 can be further reduced.

FIGS. 15A and 15B show an eighth embodiment of the present invention. This embodiment is the seventh embodiment.
(See FIGS. 14A and 14B) is modified as follows. Since the other parts have the same configuration as the seventh embodiment, FIG.
14B, the same parts as those in FIGS. 14A and 14B are denoted by the same reference numerals, and description thereof will be omitted. Only different parts will be described here.

That is, in this embodiment, a tapered connecting taper portion 141 is provided at the rear end opening of the nozzle portion 131 at the end of the insertion portion 92 of the endoscope 91, and the first portion of the operating portion 93 is provided. A tapered connecting portion 142 having a tapered shape is provided rearward at the distal end opening of the operating section conduit 106.

Also, the fluid passage forming groove 107 of the insertion portion 92
As shown in FIG. 15B, the thin tube unit 143 is detachably fitted over the entire length. The thin tube unit 143 includes a thin tube 144, a front base 145 a integrally provided at a front end of the thin tube 144, and a rear base 145 b integrally provided at a rear end of the thin tube 144. . Further, the thin tube 144 is made of a material such as silicone rubber, vinyl chloride, or polyethylene.

The fluid passage forming groove 10 of the insertion portion 92
7, when the thin tube unit 143 is mounted on the front end of the thin tube unit 143,
a is fitted into a tapered portion 141 provided at the rear end opening of the nozzle portion 131, and the rear base 145b of the rear end of the thin tube unit 143 is connected to the front end opening of the first operating portion conduit 106 of the operating portion 93. Is fitted into the tapered portion 142 provided at the bottom.

Next, the operation of the above configuration will be described.
In the present embodiment, the preparation work before using the endoscope 91 is performed in advance as follows. First, the insertion portion 92 of the endoscope 91
Of the thin tube unit 143
Is carried out. Further, the water supply base 101
a is connected to the tube 103 of the water supply source 102, and the suction base 101b is connected to the tube 105 of the suction source 104.
Are connected.

At the time of cleaning after use of the endoscope 91,
The thin tube unit 143 is removed from the fluid passage forming groove 107 of the insertion portion 92. At this time, when the thin tube unit 143 is removed, the fluid passage forming groove 107 of the insertion portion 92 is removed.
(Except the nozzle portion 131) is exposed to the outside of the endoscope 91, so that a large part of the insertion portion 92 becomes the outer surface. Further, the thin tube 144 expands when there is liquid inside, and contracts when there is no liquid inside. Other operations are the same as those of the seventh embodiment.

Thus, the above configuration has the following effects. That is, in the present embodiment, as in the fifth embodiment, there is an effect that the preparation work before the operation is simple, and the post-operation cleaning can be easily performed. Further, since the thin-walled tube unit 143 is inexpensive as in the seventh embodiment, the thin-walled tube unit 143 can be disposable. Thereby, there is an effect that the cleaning operation after using the endoscope 91 can be further reduced.

In addition, in this embodiment, especially, the thin tube 144 shrinks when there is no liquid and has a small outer diameter, so that there is an effect that it can be easily inserted into a body cavity.

FIGS. 16A and 16B show a ninth embodiment of the present invention. This embodiment is the fifth embodiment.
(See FIGS. 11 and 12A and 12B) is modified as follows. Since the other parts have the same configuration as the fifth embodiment,
16A and 16B, FIG. 11 and FIG.
The same portions as (A) and (B) are denoted by the same reference numerals and description thereof will be omitted, and only different portions will be described here.

That is, in the present embodiment, the base 151 is provided at the rear end of the pipe forming member 109. The inner end of the base 151 is an insertion portion flow path 112 which is a space surrounded between the conduit forming member 109 and the fluid passage forming groove 107.
Is communicated to. In addition, tubes 103, 10 connected to a water supply source and a suction source (not shown) are
5 are connected.

Next, the operation of the above configuration will be described.
In the present embodiment, the preparatory work before using the endoscope 91 in the present embodiment is performed in advance as follows. First, an operation of attaching the conduit forming member 109 to the insertion portion 92 of the endoscope 91 is performed. Further, the water supply source 101 is connected to the water supply base 101a.
2 tube 103 is connected, and
The tube 105 of the suction source 104 is connected to 01b.

When cleaning the endoscope 91 after use,
The channel forming member 109 is removed from the insertion section 92 of the endoscope 91. At this time, since the fluid passage forming groove 107 of the insertion portion 92 is exposed to the outside of the endoscope 91, the entire insertion portion 92 becomes the outer surface.

Therefore, the above configuration has the following effects. That is, in the present embodiment, in addition to the effect that the preparation work before the operation is easy and the post-operation cleaning can be easily performed similarly to the fifth embodiment, particularly in the present embodiment, the use of the endoscope 91 is At the time of subsequent cleaning, the entire endoscope 91 becomes the outer surface, and therefore, there is an effect that cleaning sterility is very good.

FIGS. 17A and 17B show a tenth embodiment of the present invention. This embodiment is a modification of the fifth embodiment (see FIGS. 11 and 12A and 12B) as follows. Since the other parts have the same configuration as the fifth embodiment,
In FIGS. 17A and 17B, FIGS.
The same portions as (A) and (B) are denoted by the same reference numerals and description thereof is omitted, and only different portions will be described here.

That is, in the present embodiment, the insertion portion 92 of the endoscope 91 has an elongated rigid pipe portion 161, a curved portion 162 connected to the distal end portion of the rigid pipe portion 161, and a distal end portion of the curved portion 162. Rigid part 163 connected to
Consists of

Further, on the outer surface of the hard pipe portion 161,
An elongate fluid passage forming groove 164 is formed substantially linearly over the entire length. Further, a distal end built-in conduit 165 is built in the curved portion 162 and the hard distal end portion 163. Here, the distal end of the fluid passage forming groove 164 communicates with the curved portion 162 and the distal end built-in conduit 165 of the distal end hard portion 163.

Further, the distal end of the distal end built-in conduit 165 is opened at the distal end surface of the insertion portion 92. In addition, a nozzle portion 166 is provided integrally with the distal end portion of the distal end hard portion 163. The nozzle portion 166 is provided with a built-in end pipe 165.
Are arranged so as to be separated from each other with a slight gap with respect to the front end opening.

Further, the fluid passage forming groove 164 has
As shown in (B), the conduit forming member 167 is formed so as to cover the opening on the outer surface side of the fluid passage forming groove 164 over the entire length.
Is installed. This conduit forming member 167 is the fifth embodiment (see FIGS. 11 and 12A and 12B).
The configuration is the same as that of the conduit forming member 109. Further, as shown in FIG. 17B, an insertion portion flow path 168 is formed by a space surrounded between the conduit forming member 167 and the inner bottom portion (outer surface of the insertion portion 92) of the fluid passage forming groove 164. It has become. Then, this insertion portion flow path 168
The distal end of the first operating section conduit 106 is connected to the proximal end of the first operating section.

Next, the operation of the above configuration will be described.
In the present embodiment, the preparatory work before using the endoscope 91 in the present embodiment is performed in advance as follows. First, an operation of attaching the conduit forming member 167 to the insertion portion 92 of the endoscope 91 is performed. During this mounting operation, the pipe forming member 167
Is the fluid passage forming groove 1 of the rigid pipe portion 161 of the insertion portion 92.
64. Further, the tube 103 of the water supply source 102 is connected to the water supply base 101a, and the tube 105 of the suction source 104 is connected to the suction base 101b.

At the time of cleaning after use of the endoscope 91,
The conduit forming member 167 is connected to the rigid pipe portion 161 of the insertion portion 92.
From the fluid passage forming groove 164. At this time, since the fluid passage forming groove 164 of the insertion portion 92 is exposed to the outside of the endoscope 91, the entire insertion portion 92 becomes an outer surface. further,
Here, all of the removed pipe forming members 167 are also exposed to the outside.

Therefore, the above configuration has the following effects. That is, in the present embodiment, in addition to the effect that the preparatory operation before the operation is easy and the post-operative cleaning can be easily performed, similarly to the fifth embodiment, the endoscope 91 with the curved endoscope 91 in the present embodiment is particularly effective. In this case, the same effect as in the fifth embodiment can be obtained.

FIGS. 18A and 18B show an eleventh embodiment of the present invention. In the present embodiment, a fluid passage forming groove 173 that is substantially linearly elongated over the entire length is formed on the outer surface of the insertion portion 172 of the endoscope 171. A tube member 174 is fitted into the fluid passage forming groove 173 over the entire length.

Further, a tip frame portion 175 is provided at the tip of the tube member 174. The front frame portion 175 is provided with a substantially ring-shaped flange 176 which is bent at a substantially right angle at a front end portion.

A thin tube 177 is provided at the rear end of the front frame 175. At the rear end of the thin tube 177, an insertion portion fixing portion 178 is provided. The insertion portion fixing portion 178 is provided with a circumferential protrusion 181 having a shape corresponding to the circumferential groove 180 at the distal end of the operation portion 179 of the endoscope 171.

Further, a water supply base 182 and a suction base 183 are provided on the outer peripheral surface of the insertion section fixing section 178. Here, the water supply mouthpiece 182 is communicated with the inner peripheral surface of the insertion portion fixing portion 178. The suction base 183 is inserted into the insertion portion fixing portion 178, and the rear end of the tube member 174 is connected to the opening on the inner end side.

The tube member 174, the front frame portion 17
5. The thin tube unit 184 is formed by uniting the thin tube 177 and the insertion portion fixing portion 178 integrally. The thin tube unit 184 is detachably attached to the insertion portion 172.

Next, the operation of the above configuration will be described.
In the present embodiment, the preparation work before using the endoscope 171 is as follows.
This is performed in advance as follows. First, after attaching the thin tube unit 184 to the insertion portion 172 of the endoscope 171, the insertion portion fixing portion 178 is fixed to the circumferential groove 180 of the endoscope 171, and the tube member 174 is attached to the fluid passage forming groove 173. I do. Thereafter, the water supply source and the water supply base 182 and the suction source and the suction base 183 are connected by a tube.

If the thin tube unit 184 is removed from the insertion section 172 after the use of the endoscope 171, the fluid passage forming groove 173 of the insertion section 172 is exposed outside the endoscope 171. 172 are all outer surfaces.

Therefore, the above configuration has the following effects. That is, in the present embodiment, in addition to the effect that the preparation work before the operation is easy and the post-operation cleaning can be easily performed similarly to the fifth embodiment, the thin tube unit 184 is particularly inexpensive in this embodiment. Therefore, by making the thin tube unit 184 a disposable unit, there is an effect that the washing operation can be reduced. In addition, the thin tube 177 is shrunk when there is no liquid and has a small outer diameter, so that there is an effect that it can be easily inserted into a body cavity.

Further, the present invention is not limited to the above-described embodiment, and it goes without saying that various modifications can be made without departing from the spirit of the present invention. Next, other characteristic technical matters of the present application will be additionally described as follows. (Additional Item 1) In an endoscope having an insertion portion and an operation portion having a conduit therein, at least a part of the insertion portion is covered so that a fluid passage is formed between the insertion portion and the outer surface of the insertion portion. An endoscope apparatus, comprising: a detachable flow path forming member to be formed, wherein the fluid passage communicates with a pipe in the operation unit.

(Additional Item 2) In an endoscope having an insertion portion and an operation portion having a conduit therein, a tubular conduit communicating with the fluid passage is provided at a rear end of the flow path forming member. The endoscope apparatus according to claim 1, wherein the endoscope device is provided, and the tubular conduit is inserted into the conduit of the operation unit.

(Additional Item 3) The endoscope apparatus according to Additional Item 1, wherein the conduit of the operation unit is constituted by a space surrounded by the outer surface of the operation unit and the flow path forming member. (Prior art of Supplementary items 1 to 3) As a conventional technique, as disclosed in Japanese Patent Application Laid-Open No. 7-95445, an external cleaning sheath mounted over the outer circumference of an insertion portion of an endoscope is known. There is a pipe section that is mounted over the outer periphery of the insertion section of the endoscope, and a sheath body section that is mounted on the operation section of the endoscope. Are linked. A substantially ring-shaped flange is formed at the foremost end of the pipe and bent inward at a substantially right angle, and at least one nozzle is provided on an inner wall surface of the flange. Also, JP-A-6-254039
As shown in the publication, a nozzle portion that is provided at the distal end portion of the endoscope and is capable of ejecting cleaning water to an observation window provided at the distal end portion, and supplies cleaning water to the nozzle portion to supply the endoscope. 2. Description of the Related Art There is an endoscope apparatus having a built-in water pipe. In addition, 6-6
There is an endoscope cover with a channel having an endoscope insertion channel and a forceps insertion channel provided independently of the endoscope insertion channel as disclosed in Japanese Patent No. 8702.

(Problems to be Solved by Additional Items 1 to 3)
1. In Japanese Patent Application Laid-Open No. 7-95445, before an operation, a cleaning sheath and a valve device for controlling supply and suction of fluid are attached to an endoscope, and the cleaning sheath and the valve device are connected by a tube. Subsequently, the valve device and the water supply source, and the valve device and the suction source are connected by a tube. The preparatory work before the operation is complicated, and the preparatory work takes a long time, so that the operation time is prolonged.

2. In JP-A-6-254039,
When the endoscope is washed after the operation, the outer surface of the endoscope is washed using a cleaning tool such as a sponge, and then the inner surface of the water supply pipe built in the endoscope is washed by inserting a washing brush. .
Since the length of the inner surface of the water pipe is very long, it takes a long time to sufficiently clean the water pipe.

[0145] 3. In Japanese Utility Model Laid-Open Publication No. 6-68702, there is a problem that the structure is complicated because the endoscope insertion channel and the forceps insertion channel are different conduits. (Purposes of Supplementary Items 1 to 3) The objectives of Supplementary Items 1 to 3 are to provide an endoscope apparatus which has a simple structure, facilitates preparatory work before surgery, and enables easy and quick cleaning after surgery. That is.

(Means for Solving the Problems of Supplementary Items 1 to 3) In the configuration of Supplementary Items 1 to 3, the adapter is attached to the insertion portion as a preparation work before use, and the water supply pump, the suction pump, and the endoscope are connected. It is only necessary to connect the base with a tube. When the adapter is removed from the insertion portion, the entire insertion portion becomes the outer surface.

(Effects of Additional Items 1-3) With a simple structure,
An object of the present invention is to provide an endoscope apparatus in which a preparation operation before an operation is simple and cleaning after the operation can be easily performed in a short time. (Additional Item 4) In an endoscope having an insertion portion, a groove portion is provided along at least a part of the insertion portion along the axial direction, and a conduit is formed when the groove portion is detachably attached to the groove portion and is attached to the groove portion. An endoscope device comprising a conduit forming member.

(Additional Item 5) The endoscope apparatus according to Additional Item 4, wherein the conduit forming member is made of an elastic member. (Additional Item 6) The endoscope apparatus according to Additional Item 4, wherein the pipe forming member is provided with a base that can be connected to at least one water supply source and suction source.

(Additional Item 7) The endoscope apparatus according to Additional Item 4, wherein a nozzle portion is provided at a distal end portion of the conduit forming member. (Additional Item 8) An additional item characterized in that it has a built-in pipeline portion that is opened at the end near the groove portion and is built in the endoscope operation portion, and a base portion provided at the other end of the built-in pipeline. 4. The endoscope device of 4.

(Additional Item 9) A distal end channel portion which is built in the distal end portion of the endoscope and has one end opened to the distal end portion of the groove and the other end opened to the distal end surface of the endoscope, and the distal end portion of the distal end channel portion. Additional item 4 characterized by having a nozzle provided in the opening.
Endoscope device.

(Supplementary Item 10) A distal end cap portion detachable from the endoscope distal end portion, and a plate-shaped member provided on the distal end cap portion and provided so as to cover the distal end opening portion are provided. 4. The endoscope apparatus according to claim 4, wherein

(Additional Item 11) The endoscope apparatus according to Additional Item 4, wherein the conduit forming member is a tube member. (Additional Item 12) The endoscope apparatus according to Additional Item 4, wherein the conduit forming member is a thin tube member.

(Additional Item 13) In an endoscope apparatus provided with an endoscope having an elongated insertion portion and an operation portion connected to a base end of the insertion portion and having a conduit therein, An endoscope apparatus comprising a flow path forming member that communicates with a passage and forms a fluid passage having an opening at a distal end portion of the insertion section with an outer surface of the insertion section.

[0154]

According to the present invention, at least a part of the insertion portion is detachably mounted on the insertion portion so as to cover the insertion portion, and extends between the distal end portion side of the insertion portion and the operation portion side when mounted on the insertion portion. In addition to providing a flow path forming means for forming an insertion section flow path between the insertion section and the outer surface of the insertion section, the operation section has an operation section flow path communicating with the insertion section flow path, so that the structure is simple. In addition, the preparation work before the operation is simple, and the cleaning after the operation can be easily performed in a short time.

[Brief description of the drawings]

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

FIG. 2A is a longitudinal sectional view showing a flow path forming groove and a flow path forming hole of the endoscope main body in the endoscope apparatus according to the first embodiment, and FIG. 2B is a longitudinal sectional view of FIG. 2B line sectional view, (C)
Is a cross-sectional view taken along the line 2C-2C in (A), and (D) is a 2D view in (A).
2D line sectional view.

3A is a longitudinal sectional view of the adapter of the endoscope device according to the first embodiment, FIG. 3B is a sectional view taken along line 3B-3B in FIG. 3A, and FIG. 3C is 3C in FIG. -3C sectional drawing.

FIG. 4A is a longitudinal sectional view showing a state in which an adapter is mounted on an endoscope main body of the endoscope apparatus according to the first embodiment;
(B) is a sectional view taken along line 4B-4B of (A), and (C) is (A).
FIG. 4C is a sectional view taken along line 4C-4C, and FIG. 4D is a sectional view taken along line 4D-4D in FIG.

FIG. 5 shows a second embodiment of the present invention.
(A) is a longitudinal sectional view showing a state in which an adapter is attached to the endoscope main body of the endoscope apparatus, (B) is a cross-sectional view taken along line 5B-5B of (A), and (C) is a flow chart of the endoscope main body. FIG. 4D is a longitudinal sectional view showing a passage forming groove and a passage forming hole, FIG. 4D is a sectional view taken along line 5D-5D of FIG. 4C, FIG. 5E is a sectional view taken along line 5E-5E of FIG. (G) is a sectional view taken along line 5G-5G of (F), and (H) is a sectional view taken along line 5H-5H of (F).

FIG. 6 shows a third embodiment of the present invention,
(A) is a longitudinal sectional view showing a state in which an adapter is attached to the endoscope body of the endoscope apparatus, (B) is a sectional view taken along line 6B-6B of (A), and (C) is a flow chart of the endoscope body. FIG. 6D is a longitudinal sectional view showing a road forming groove, (D) is a sectional view taken along line 6D-6D of (C), (E) is a longitudinal sectional view of an adapter, and (F) is a sectional view taken along line 6F-6F of (E).

FIG. 7 is a schematic configuration diagram of an entire endoscope apparatus according to a fourth embodiment of the present invention.

FIG. 8A is a longitudinal sectional view showing a state in which an adapter is attached to an endoscope main body in an endoscope apparatus according to a fourth embodiment, and FIG. 8B is a sectional view taken along line 8B-8B of FIG. , (C) is a sectional view taken along line 8C-8C of (A), and (D) is a sectional view taken along line 8D- (A).
8D line sectional view.

FIG. 9 is a perspective view of a proximal operation unit of an endoscope in an endoscope apparatus according to a fourth embodiment.

FIG. 10 shows a modification of the fourth embodiment.
(A) is a perspective view showing a state in which a clip is attached to a proximal operation unit of an endoscope, and (B) is a front view of the clip.

FIG. 11 is a schematic configuration diagram of an entire endoscope apparatus according to a fifth embodiment of the present invention.

FIG. 12A is a longitudinal sectional view showing a state in which an adapter is attached to an endoscope main body in the endoscope apparatus according to the fifth embodiment, and FIG. 12B is a sectional view taken along line 12B-12B of FIG. .

FIG. 13 shows a sixth embodiment of the present invention.
(A) is a longitudinal sectional view showing a state in which an adapter is attached to the endoscope main body of the endoscope device, and (B) is 13B-13 of (A).
FIG. 2C is a sectional view taken along line B, and FIG. 2C is a front view of the endoscope apparatus of FIG.

FIG. 14 shows a seventh embodiment of the present invention.
(A) is a longitudinal sectional view showing a flow path forming groove and a flow path forming hole of the endoscope main body in the endoscope apparatus, and (B) shows a state in which an adapter is attached to the endoscope main body of the endoscope apparatus. Longitudinal section.

FIG. 15 shows an eighth embodiment of the present invention.
(A) is a longitudinal sectional view showing a flow path forming groove and a flow path forming hole of the endoscope main body in the endoscope apparatus, and (B) shows a state in which an adapter is attached to the endoscope main body of the endoscope apparatus. Longitudinal section.

FIG. 16 shows a ninth embodiment of the present invention,
(A) is a longitudinal sectional view showing a state in which an adapter is attached to an endoscope main body of the endoscope apparatus, and (B) is 16B-16 of (A).
B sectional drawing.

FIG. 17 shows a tenth embodiment of the present invention, in which (A) is a longitudinal sectional view showing a flow path forming groove and a flow path forming hole of an endoscope main body in an endoscope apparatus, and (B). FIG. 3 is a longitudinal sectional view showing a state in which an adapter is attached to an endoscope main body of the endoscope apparatus.

FIG. 18 shows an eleventh embodiment of the present invention, in which (A) is a longitudinal sectional view showing a state where an adapter is attached to an endoscope main body of an endoscope apparatus, and (B) is (A). 18B-
18B sectional view.

[Explanation of symbols]

 2 Insertion part 3 Operation part 11 Operation part conduit (operation part flow path) 14 Fluid passage forming groove 17 Adapter 21 Insertion part flow path

Claims (1)

[Claims] An endoscope apparatus in which a proximal operation portion is connected to a proximal end of an elongated insertion portion inserted into a lumen, wherein the insertion portion is covered with at least a part of the insertion portion. An insertion portion flow path that is detachably attached and that extends between the distal end side of the insertion portion and the operation portion side when attached to the insertion portion is formed between the insertion portion and the outer surface of the insertion portion. An endoscope apparatus comprising: a flow path forming unit; and an operation section flow path connected to the insertion section flow path in the operation section.