JP3414430B2 - Endoscope cover with channel - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [0001] BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a treatment instrument such as forceps.
At least one chamber including a treatment instrument channel to be inserted
With a channel to cover the insertion section of the endoscope, etc.
Related to an endoscope cover. [0002] 2. Description of the Related Art In recent years, endoscopes are widely used in the medical field and the like.
Became used. Endoscope used in the medical field
Is inserted at the distal end of the insertion part when inserted into a living body.
Observed window cannot be observed sufficiently due to adhesion of body fluid, etc.
May be. For this reason, the endoscope is
Fluid such as cleaning liquid and cleaning gas is sprayed on the observation window
Air tube to remove body fluids, etc. attached to the observation window
Roads and water supply pipelines are provided. Also, unnecessary body fluids, etc.
Some are provided with a suction line for sucking and discharging
You. In addition, tissue collection with biopsy forceps or treatment tools
Treatment instrument channel so that
Some are provided with a file. [0003] Endoscopy requires thorough cleaning and disinfection prior to inspection.
You need to use a clean endoscope. [0004] For this reason, pipes such as the air supply pipe or the like,
Endoscope with fixture channel is used for patients etc.
Cleaning or destruction to prevent infectious diseases, etc.
Bacterial treatment is performed. However, completely washed or sterilized
Because it takes time to perform the processing,
There is a problem that the rate decreases. Therefore, the endoscope itself is connected to the air supply / water supply conduit or the like.
When used with the endoscope cover provided with
After use, replace only the endoscope cover as disposable
The endoscope itself will not become dirty after use.
Endoscopes that do not require cleaning or sterilization
An endoscope apparatus of a mirror cover type has been proposed. As an endoscope device of an endoscope cover system,
For example, Japanese Patent Publication No. 2-57334 or U.S. Pat.
In the 3,162,190 publication, the endoscope insertion section is inserted into the cover.
The endoscope insertion section with this cover
An insulated one is disclosed. [0007] Such an endoscope with an endoscope cover system is as follows.
Clean or sterilize the insertion section beforehand.
Good. Then, the insertion portion of the endoscope was covered with the endoscope cover.
As it is, an endoscope is inserted into the patient's body cavity for examination and treatment.
After use, remove the endoscope cover and discard it.
U. Thus, disposable endoscope covers for each patient
This eliminates the need for endoscopes to be cleaned and disinfected,
It is very easy to keep clean at all times. And
Endoscopes should be used continuously without re-cleaning and disinfection.
Can be used. [0008] However, the above-mentioned problem is not solved.
In such an endoscope device of the endoscope cover type, conventionally,
Direct-view endoscopes are the mainstream, while side-view
Are there any special proposals for those using endoscopes?
Was. In a side-view type endoscope, the distal end of the insertion portion is
An observation window and an illumination window are provided to the side.
Endoscope cover structure when applied to endoscope cover system
Are different, especially air / water supply line, suction line,
Endoscope with channels provided with channels such as channels
Covers such as channels, observation windows, and illumination windows
The result is different. For example, a treatment instrument channel or the like is provided.
In a side-view type endoscope, forceps inserted through the treatment instrument channel
A treatment instrument raising device for raising the distal end of the treatment instrument such as
However, the treatment instrument raising device has a complicated shape and mechanism.
For this reason, it was not easy to dispose it on the endoscope cover. [0011] A treatment tool is installed on an endoscope of an endoscope cover type.
When setting up the device, for example, sterilize it and repeat
The operation part of the endoscope is treated like a normal endoscope
When the treatment tool raising lever that operates the tool raising device is installed,
When attaching the cover to the cover endoscope, raise the treatment instrument
Operate the treatment tool raising wire connecting the bar and the treatment tool raising table.
It is said that complicated connection work such as connecting to the work department is required
There is a problem. The present invention has been made in view of these circumstances.
The treatment that raises the treatment tool inserted through the channel
An endoscope with an endoscope cover system equipped with an erecting device
To improve workability when attaching the endoscope cover.
To provide an endoscope cover with a channel that can
The purpose is. [0013] SUMMARY OF THE INVENTION A channel according to the invention
The endoscope cover has a treatment instrument channel through which the treatment instrument is inserted.
And is inserted through the treatment instrument channel and protrudes from the distal end.
A treatment instrument raising device that moves the ejected treatment instrument to a predetermined position
A channel covering at least the insertion portion of the endoscope, comprising:
An endoscope cover with an insertion portion for covering an insertion portion of the endoscope
Endoscope for fixing the operation section of the endoscope to the base end of the cover section
An opening for fixing the endoscope operation section is provided.
In the mouth portion, the treatment instrument raising device is connected to the treatment instrument raising device.
A treatment tool raising device operating member for operating the upper device is provided.Do
Along with the distal end of the endoscope cover,
The insertion hole for inserting the
It is noted that the distal end of the endoscope and the treatment instrument channel are separated.
Sign. [0014] Embodiments of the present invention will be described below with reference to the drawings.
I do. 1 to 7 relate to a first embodiment of the present invention.
1 is a view showing the overall configuration of an endoscope device of an endoscope cover type.
FIG. 2 is a perspective view showing the overall configuration of the endoscope cover, and FIG.
3 shows a state in which the endoscope cover is attached to the endoscope for cover.
FIG. 4 is a perspective view showing the configuration of the distal end portion of the endoscope cover.
FIG. 5 is a sectional view showing the configuration of the distal end portion of the endoscope cover.
FIG. 6 is a cross-sectional view showing the configuration of the rear end portion of the endoscope cover,
FIG. 7 is a perspective view showing the configuration of the treatment instrument raising operation mechanism. As shown in FIG. 1, an endoscope with an endoscope cover system is used.
The mirror device 1 is an endoscope of an endoscope cover type (hereinafter referred to as a cover).
2), and this cover system
The endoscope 2 includes an air supply / water supply conduit, a suction conduit, and a treatment tool channel.
Endoscope cover with channels provided with channels such as
(Hereinafter referred to as an endoscope cover) 3 and the endoscope cover
Endoscope for endoscope cover attached to 3 (hereinafter referred to as cover
(Referred to as an endoscope) 4. Introspection
When performing a speculum examination, the endoscope cover 3 should be clean.
The insertion portion of the bar endoscope 4 is covered, and the endoscope is inspected after the inspection.
The cover 3 is discarded, while the cover endoscope 4 is
Covered with clean endoscope cover 3 for repeated use
It is characterized by being performed. As a result,
This eliminates the need for cleaning and disinfecting the endoscope. Further, the endoscope apparatus 1 is provided with the cover
Endoscope 2 and each of which the cover type endoscope 2 is connected.
Cart 5 with seed peripheral equipment, etc.
And a cover holder 6 for holding the endoscope 2. The cart 5 includes, for example, a light source device 7,
For the processor 8, the fluid control device 9, and the endoscope cover 3.
Endoscope cover used when mounting endoscope 4 for cover
An expander (hereinafter referred to as an expander) 10 and the like are stored
I have. A video processor is provided on the upper surface of the cart 5.
A mode for receiving an image signal from the monitor 8 and displaying an endoscope image
Nita 11 is placed. The cover endoscope 4 is an elongated endoscope insertion portion.
An operation unit 13 serving also as a large-diameter grip unit at the proximal end of the hand 12
Are connected continuously, and a universal cord is
14 is extended, and the end of this universal cord 14
The connector 15 is provided in the section. The light source device 7 is connected via the connector 15
It is detachably connected to the endoscope for cover 4 and illuminates the endoscope.
It supplies light. In addition, the video processor
The signal cable 8 extends from the side of the connector 15.
Removably connected to the cover endoscope 4 via the cable 16
Drive of the image pickup means built in the endoscope 4 for cover, and
Signal processing for signals output from the
And converts it to a standard video signal and outputs it to the monitor 11
It has become. The dilator 10 is connected to an expansion tube 17.
The endoscope cover 3 is connected via the expansion tube 17.
This is for expanding the air by sending air into it.
By extension, the endoscope cover 3 is attached to the endoscope 4 for the cover.
Or withdrawalCan easilyIt has become. This mosquito
Attach or remove the endoscope cover 3 to the bar endoscope 4
When the cover holder 6 is used, for example, the cover holder 6
The end of the endoscope cover 3 is held by the
The endoscope 4 is inserted or removed. The endoscope cover 3 has a soft insertion portion cover portion.
18, thin and soft polymer such as vinyl chloride
Operation unit cover 19 and universal made of material
A code cover section 20;
Endoscope insertion part 12, operation part 13, universal of endoscope 4 for use
Each monkey 14 is covered. The fluid control device 9 includes an air supply control valve 21, a water supply
A control valve 22 and a suction control valve 23 are provided.
The suction is controlled by these solenoid valves. Sending
The air control valve 21, the water supply control valve 22, and the suction control valve 23 are
Air supply pipes respectively extending from the insertion part cover part 18
24, a water supply pipe 25, and a suction pipe 26 are connected. The suction control valve 23 has a suction tube 2
7 is connected, and a suction device (not shown) is connected to the end of the suction device.
From the endoscope endUnnecessaryLike sucking body fluids
Has become. A water supply tube 28 is connected to the water supply control valve 22.
The water supply tank 29 is connected to the tip of the
Have been. Further, the fluid control device 9 supplies two air feed channels.
The air supply control valve 21 and the water supply tank are extended.
Connected to the network 29. FIG. 2 shows the insertion section cover 1 of the endoscope cover 3.
8 shows the entire configuration. Is the insertion part cover part 18
Operation of the cover tip component 31, cover outer skin 32, endoscope
Endoscope operation unit fixing mouth body for connecting and fixing working unit 13
(Hereinafter referred to as a mouth part) 33 is airtightly connected.
Has been established. An opening for observation is provided in the cover distal end portion 31.
A portion 34 and a channel opening 35 are provided.
A transparent cover glass is disposed in the observation opening 34,
The observation window and illumination window of the endoscope inserted inside the cover
Irradiate illumination light toward the test site and
Observation can be performed. The mouth part 33 is provided inside.
A treatment tool insertion port 36 communicating with the treatment tool channel;
Forceps inserted through the treatment instrument channel from the treatment instrument insertion port 36
Operating the treatment instrument raising device that raises the tip of the treatment instrument
Instrument raising device for operating the instrument
A bar 37 is provided. The endoscope cover 3 is attached to the cover endoscope 4.
FIG. For cover on insertion part cover part 18
Insert the insertion section 12 of the endoscope 4 into the operation section 13 of the endoscope.
Put the operation unit cover 19 on the universal cord 14.
After covering the universal cord cover 20, the fixing
Loop 38 around the joint of each cover
By the above, each part of the endoscope 4 for the cover is
(Insertion section cover section 18, operation section cover section 19, UNIVER
It is air-tightly covered with a monkey cord cover section 20),
It is designed to be isolated from the environment. The structure of the distal end portion 31 of the endoscope cover is shown.
It is shown in FIG. The tip component 31 is made of a hard resin or the like.
And an endoscope insertion chamber provided in the insertion section cover 18.
Endoscope end fitting that the endoscope end fits
Channel 41 communicating with inlet 41 and treatment instrument channel
An end 42 is provided, and the distal end of the treatment instrument channel is
It opens to the outside through the channel opening 35.
You. Observation opening 34 beside endoscope insertion hole 41
Is provided with a cover glass 43 to transmit light.
The endoscope inside is now isolated from the external environment.
ing. The endoscope cover including the distal end portion 31
The distal end of the insertion portion cover 18 is represented by an axial cross-sectional view.
And a configuration as shown in FIG. In the insertion portion cover 18, a treatment instrument channel is provided.
Channel tube 45 constituting the channel 44 is inserted therethrough.
The tip of the channel tube 45 is
31 and a channel provided in the tip component 31.
In communication with the front end portion 42. To the channel tip 42
Raises the treatment instrument inserted through the treatment instrument channel 44.
The treatment instrument raising table 46 to be raised is rotatably installed.
You. The treatment instrument raising table 46 is located at the channel end centering on the base end.
The base end is rotated by a rotation shaft 47 so that the inside of the end 42 can be rotated.
The distal end of the treatment instrument raising table 46 is
The raising table 46 is raised and pulled up by pulling.
The upper wire 48 is connected. This raising wire 48
Is inserted through the insertion portion cover portion 18 and the front end portion is the front end portion.
31 through the inside of the wire tube 49 connected to
The side extends to the endoscope operation unit fixing mouth part 33. Although not shown, the insertion portion cover 18
Inside the channel tube 45 of the treatment instrument channel 44
An endoscope insertion channel is provided almost parallel to the
Endoscope 4 is inserted. After the cover 18 of the insertion section of the endoscope cover 3
The ends are configured as shown in FIG. Provided at the rear end of the insert cover 18
The endoscope operation section fixing mouth body section 33 is provided with the channel channel.
Tube 45 and the rear end of the wire tube 49 are connected.
I have. The channel tube 45 is treated inside the mouth part 33.
It communicates with the tool insertion port 36. In addition, wire tube 4
Raising wire 48 extending into the mouth part 33 through the inside of the body 9
Has a wire support member 50 fixed to its rear end.
You. The treatment tool raising lever 37 is provided on the wire support member 50.
When the treatment instrument raising lever 37 is operated,
As a result, the wire support member 50 is
Is moved forward and backward within a predetermined range.
You. FIG. 7 shows the treatment instrument raising lever 37 and the wiper.
2 shows a configuration of a treatment instrument raising operation mechanism including a support member 50.
You. A wire connected to the rear end of the raising wire 48
The support member 50 is formed by a large diameter portion 51 and a small diameter portion 52.
Has been established. Also, the tip of the raising lever 37 is cut off.
A notch groove 53 is provided, and the notch groove 5
The small diameter portion 52 of the wire support member 50 is engaged in
You. Clear run between notch groove 53 and small diameter part 52
Dimensions of the notch groove 53 and the small diameter part 52 so that
Is set. The treatment instrument raising lever 37 supports the rotating shaft 54.
It is rotatably fixed to the mouth part 33 as a point. Rise
By operating the lever 37, the raising lever 37
Moves within the small-diameter portion 52 of the wire support member 50
Then, the large-diameter portion 51 of the supporting member is pushed to push the wire supporting member 50.
Is driven in the front-rear direction. This allows
The raising wire 48 is pulled and relaxed, and the cover tip is treated.
The raising table 46 is raised and inverted. The endoscope apparatus of the present embodiment having an endoscope cover system.
In the case of 1, the endoscope 4 for the cover is used when the endoscope is used.
Attach the sterilized clean endoscope cover 3 and
Cover-type endoscope with the endoscope 4 isolated from the external environment
The mirror 2 is inserted into a site to be inspected such as in a body cavity. Yo
When the endoscope is used, the endoscope 4 for the cover is not covered with the endoscope.
-3 and not exposed to the outside
Therefore, a clean state is maintained. In addition, air supply pipeline, water supply
The conduit and the treatment instrument channel 44 are provided on the endoscope cover 3 side.
After use, it is discarded together with the endoscope cover 3.
Endoscope for the cover with a new and sterilized endoscope cover 3
Contaminated pipeline is reused to cover 4
Never. The cover type endoscope 2 is configured as described above.
Accordingly, the endoscope 4 for the cover, which is the main body of the endoscope, can be inspected.
No need to wash or sterilize each time, always clean
And the endoscopy can be performed easily.
You. The endoscope for cover 4 does not need to be re-cleaned and re-disinfected.
It can be used continuously, for example, when all the inspections of the day are completed.
Cleaning and sterilization may be performed at the same time. Therefore,
The use efficiency of the endoscope can be improved. Various treatments using a treatment tool are performed during an endoscopic examination.
If the treatment tool to be used is
Inserted through the treatment instrument insertion port 36 provided in the
Through the tool channel 44 and the cover tip component 31
The distal end of the treatment tool from the channel opening 35
To reach the target site. The endoscope cover of this embodiment is of a side observation type.
(Side-view type) endoscope
A treatment tool raising table for raising the end to the target site
A treatment instrument raising device having an upper operation mechanism is provided. The treatment tool inserted into the treatment tool channel 44
When raising and turning over, insert side cover 18 near hand
Activates the treatment instrument raising lever 37 provided in the mouth 33
With the rotation shaft 54 as a fulcrum,
37 is rotated and the wire support member engaged with the lever tip
50 moves back and forth. This allows the wire support
The raising wire 48 whose rear end is fixed to the material 50 is pushed and pulled.
And the treatment instrument connected to the distal end of the raising wire 48 is raised.
The table 46 rises and is inverted. As described above, in this embodiment, the treatment instrument raising lever is used.
The base end of the insertion section cover of the endoscope cover,
Because it is provided near the operation section of the endoscope, the endoscope camera
When attaching the bar to the cover endoscope, the treatment instrument raising device
Connection such as connecting the wire to the endoscope
Continued work can be omitted, and attach the endoscope cover
In this case, the workability can be improved. FIGS. 8 to 11 show a second embodiment of the present invention.
FIG. 8 is a lateral view showing the configuration of the distal end portion of the endoscope cover.
FIG. 9 is a sectional view, and FIG. 9 is a cover endoscope to be inserted into the endoscope cover.
FIG. 10 is an axial cross-sectional view showing the configuration of the tip portion of FIG.
FIG. 11 is a perspective view showing the external shape of the distal end portion of the bar endoscope.
Is the rising direction of the forceps raising stand at the tip of the endoscope cover
It is sectional drawing which shows the structure of the modification which changed. The second embodiment is similar to the first embodiment in that it has a side view.
Example of endoscope cover used for perceptual (side-view) endoscope
It is. The distal end portion 61 of the endoscope cover includes a first
Insert the endoscope insertion channel inside the cover as in the embodiment.
Endoscope distal end insertion hole into which the inserted distal end of the endoscope fits
62 and a channel tip communicating with the treatment instrument channel
42, and the distal end of the treatment instrument channel is
It opens to the outside from the tunnel opening 64. Also endoscope
Inserted into the observation opening on the side of the tip insertion hole 62
Cover corresponding to the position of the observation window and illumination window of the endoscope
Glass 65 is provided and includes endoscope distal end insertion hole 62
Isolate the endoscope channel from the external environment and
The field of view of the endoscope is secured. The channel tip 42 has a treatment instrument channel.
Treatment instrument raising table that raises the treatment instrument that has passed through the inside of the tunnel
66 is rotatably disposed. On treatment instrument raising table 66
Is connected to a raising wire 67.
Reference numeral 7 denotes an endoscope operation (not shown) on the proximal side of the endoscope cover.
Extending to the mouth part for fixing the part, and the rear end part as in the first embodiment.
Is connected to the treatment instrument raising lever. Raise this treatment tool
By operating the lever, the raising wire 67 is pushed and pulled.
The treatment instrument raising table 66 is raised and inverted in the direction of the arrow in the figure.
It is supposed to. A side-view camera inserted into the endoscope cover
FIGS. 9 and 10 show the configuration of the distal end portion of the bar endoscope. The distal end component 68 of the insertion section of the endoscope for a cover
As shown in FIG. 9, the illumination window 69 and the observation window 70
They are arranged side by side in the axial direction of the insertion section. Lighting window 69
Is provided with an illumination optical system 71, and behind the illumination optical system 71
The exit end of the light guide 72 inserted through the insertion section is arranged
Have been. Observation window 70 includes observation light including prism 73
A school 74 is provided. Behind the prism 73,
An imaging unit 76 having a solid-state imaging device 75 is provided.
ing. The distal end component 68 of the endoscope for cover is shown in FIG.
Direction perpendicular to the axial direction of the insertion part as shown in 0 (lateral direction)
Has a substantially semicircular cross section. Tip configuration section 68
Is the longitudinal axis of the substantially semicircular tip surface (surface A) (hereinafter referred to as
(Referred to as the long axis).
The illumination optical system 71 and the observation optical system 74 are provided on the surface B.
It is arranged. The light guide 72 is a universal cord
14 so that the rear end is connected to the light source device 7.
And the illumination light from the light source device 7 is a light guide.
The light is transmitted to the distal end of the endoscope by the illumination optical system 72.
Illumination light is radiated to the test site by 71
I have. On the other hand, the first lens at the tip of the observation optical system 74
Of the image incident on the prism is changed to a substantially right angle by the prism 73
Then, the image is guided to the imaging unit 76.
The subject image passes through the imaging optical system of the imaging unit 76.
Is formed on the image plane of the solid-state image sensor 75,
The photoelectric conversion is performed in the element 75. Of the converted electrical signal
The image signal is sent to the video processor 8 and
After various video signal processing is performed in the processor 8, the monitor 11
And the subject image is displayed on the display screen of the monitor 11.
It is supposed to be. Endoscope distal end insertion hole 6 of the endoscope cover
2 is an endoscope for a cover to be inserted as shown in FIG.
The cross-sectional shape in the lateral direction is roughly equivalent to the cross-sectional shape of the
It is semicircular. And the tip configuration of the endoscope cover
In the section 61, the tube is inserted in parallel with the endoscope distal end insertion hole 62.
A channel distal end portion 42 is provided, and an endoscope distal end portion insertion hole 62 is provided.
At a position substantially parallel to the long axis direction of the semicircular cross section
An erecting base 66 is provided. This treatment instrument raising table 66
Is in the longitudinal direction of the semicircular cross section of the endoscope distal end insertion hole 62.
On the other hand, it rises in a direction substantially parallel (the direction of the arrow in FIG. 8).
It is supposed to. As described above, the endoscope end portion of the endoscope cover
The insertion hole 62, the treatment instrument raising table 66, and the cover endoscope
By configuring the distal end configuration section 68, the endoscope distal end section
The longitudinal direction of the semicircular cross section of the insertion hole 62 (that is,
(The major axis direction of the semicircular tip surface of the tip component 68)
Since the treatment tool raising table 66 is positioned substantially in parallel, the endoscope can be easily viewed.
The treatment tool raising base 66 is substantially parallel to the viewing direction of the observation optical system 74.
Position, the viewing direction of the endoscope and the rising direction of the treatment tool match
I do. This allows the operator to confirm the position of the
Operability of treatment tools such as forceps,
Can be performed. Also, an insertion hole for the distal end of the endoscope of the endoscope cover.
62 has a substantially semicircular cross-section,
Space where the end of the channel has an endoscope insertion hole
Is provided in parallel with the
Components installed at the end of the endoscope cover are space efficient
Cover using an endoscope cover
The diameter of the insertion portion of the endoscope can be reduced. Further, according to the configuration of this embodiment, the endoscope tip
Partition wall 7 between end insertion hole 62 and channel tip 42
7 (see FIG. 8) inserts the insertion portion of the endoscope 4 for a cover.
Is strengthened by the
Raise the fixture raising table 66 and the treatment tool engaged with the raising table,
The operation of raising the treatment instrument raising table 66 and the treatment instrument channel
To act as a guide for forceps etc.
Can be. As a modification of the second embodiment, FIG.
As shown in the figure, the treatment instrument raising direction is the observation optical system of the endoscope.
Tip the endoscope cover so that it is slightly inclined with respect to the viewing direction.
The forming unit 78 can also be configured. Tip structure of this modification
The component 78 has a semicircular cross-sectional length of the endoscope distal end insertion hole 62.
Treatment instrument raising base so that the raising direction is slightly inclined with respect to the axial direction.
66 are provided. With such a configuration, the treatment instrument
The rising direction of the treatment tool that is raised and inverted by the upper base 66 is
Slightly tilts with respect to the viewing direction of the observation optical system of the endoscope,
The tool will move toward the center of the field of view of the endoscope,
Operation of treatment tools such as forceps can be performed more easily.
You. FIGS. 12 to 14 show a third embodiment of the present invention.
FIG. 12 shows the distal end of the endoscope cover viewed from above.
FIG. 13 shows the configuration of the distal end portion of the endoscope cover.
FIG. 14 is an axial sectional view, and FIG.
You. The third embodiment is different from the endoscope cover of the second embodiment.
This is an example in which the leading end component is changed. In this embodiment,
Using a direct-view type endoscope, the end of the endoscope cover to be attached
The viewing direction is changed by the section to create a side-view type cover endoscope.
ing. The end component 80 of the endoscope cover has a tip
A flat surface 81 is formed on the nearby side portion.
An observation optical system 82 on the bar side and an illumination optical system 83 at both ends are provided.
They are arranged side by side in a direction perpendicular to the axial direction of the insertion section. This
To the observation optical system 82 and the illumination optical system 83
Is provided with an air / water nozzle 84 to wash the observation and illumination windows.
It can be purified. Further, after the observation optical system 82 is
To the treatment instrument channel provided inside the cover.
A channel opening 64 is provided through which the forceps raising table 6 is inserted.
6 are provided. The internal structure of the distal end portion 80 of the endoscope cover
Are shown in FIG. 13 and FIG. Observation optical system 82 and illumination light
Behind the cover glass 85 provided on the outer surface of the academic system 83
Is provided with a prism 86, which is a direct view type cover endoscope.
Direction of the illumination light and the light beam of the observation image in the mirror 87 at a substantially right angle
Transformation enables side observation. The ray direction
The conversion means is not limited to the prism 86, but may be a mirror or the like.
It is also possible to use the body. Also, the prism 86
For each of the observation optical system 82 and the illumination optical system 83
Optical performance can be improved by providing
it can. Also, an insertion hole for an endoscope distal end portion of the endoscope cover.
88 has a substantially semicircular cross section as in the second embodiment.
And the substantially semicircular tip of the endoscope 87 for the cover is inserted.
And are fitted. And on the cover side
The observation optical system 82 and the illumination optical system 83 are an endoscope for a cover.
87 corresponding to the observation optical system 89 and the illumination optical system 90.
Is placed. In addition, the distal end component 80 of the endoscope cover
Is provided with an air / water supply pipe 91 and an air / water supply nozzle 84.
Is in communication with The forceps raising table 66 is a section of the distal end component 80.
On the central axis of the cover, that is, for the cover
Arranged on an axis above the mirror 87 and substantially parallel to the viewing direction
The raising wire 67 inserted through the wire tube 49 is
It is connected. As described above, the observation optical system of the endoscope cover and
By arranging the illumination optical system and the endoscope insertion hole
Observation using a direct-view type cover endoscope
It is possible to select an endoscope cover with a channel
Enables direct / side-view selection. Further, as in the present embodiment, a treatment instrument raising table is provided.
The treatment tool inserted through the channel can be
And position the tip at the center of the field of view of the endoscope.
It is possible to improve the operability of the treatment tool. Next, the endoscope operation of the rear end of the endoscope cover is performed.
About the procedure for assembling the treatment tool insertion port in the
This will be described with reference to FIGS. After the cover 18 of the insertion section of the endoscope cover 3
The end part is the mouth part 3 for fixing the endoscope operation part to the cover outer skin 32.
3 are hermetically connected. Also, the insertion section
A channel tube 45, a wire,
The tube 49 is inserted through the channel tube
The rear end of 45 is fixed to the mouth part 33 in a watertight manner by bonding or the like.
Have been. When assembling, first, as shown in FIG.
Channel tube with no holes on the side
45 is inserted into the insertion hole of the mouth part 33, and the entire surface is adhered.
You. Then, from the opening 92 corresponding to the treatment instrument insertion port,
The opening 92 is closed so that the opening 92 is opened.
A hole in the corresponding portion of the channel tube 45,
As shown in FIG. 16, the treatment instrument insertion port 36 is inserted into the opening 92.
Insert and fix. This allows the forceps and the like to
36 so that it can be inserted into the channel tube 45
Become. When assembling in such a procedure,
It is necessary to make a side hole in the channel tube 45 in advance.
And the channel tube 45 was fixed to the mouth part 33
Since it is only necessary to make a hole for the treatment instrument insertion port later,
Alignment of side hole of channel tube 45 with opening 92
Time-consuming operations such as
Workability can be improved. Next, referring to FIGS. 17 to 19,
Of the air / water supply line provided at the distal end component of the endoscope cover
A configuration example will be described. FIG. 17 is a perspective view of the tip component.
18 and FIG. 18 are cross-sectional views of the distal end component, and FIG.
It is BB sectional drawing. The end component 101 of the endoscope cover has
An air / water supply nozzle 103 is provided near the side of the observation opening 102.
An observation window and an illumination of the observation opening 102 are provided.
Air and water can be sent to the window. As shown in FIG. 18, the endoscope distal end insertion hole is provided.
Between the end 41 of the endoscope and the end 42 of the channel.
Air supply line 104 and water supply line 1 in parallel with the
05 is provided. Air supply line 104 and water supply line 10
5 is the long axis of the semicircular cross section of the endoscope insertion hole 41
Are arranged side by side substantially parallel to each other, as shown in FIG.
In addition, the two conduits merge into one at the tip end and break into an L-shape
It bends and communicates with the air / water supply nozzle 103. This transmission
The air pipe 104 and the water pipe 105
Tube 106 and water supply tube 107 are connected,
Control device. When cleaning the observation window and the illumination window,
Air supply and water supply provided in the operation unit of the endoscope
Operate the button to view the cleaning fluid from the fluid control device.
It is sent to the air supply line 104 and water supply line 105 of the mirror cover,
Pneumatic water is sent from the nozzle 103 toward the observation window and the illumination window.
Perform pneumatic water supply. As described above, the fluid in the air supply pipe, the water supply pipe, etc.
By providing a conduit on the endoscope cover, the endoscope
The diameter of the insertion portion of the mirror can be reduced. Also, the fluid line
The opening of the air supply / water supply nozzle,
The fluid line is located on the side of the mouth
, L-shaped pipe hole, and nozzle only
Therefore, the configuration of the pipeline can be simplified. [0075] According to the present invention, as described above,
A treatment instrument raising device that raises a treatment instrument inserted into the channel
Endoscope with an endoscope cover
It is possible to improve the workability when attaching the bar.
Has an effect.

BRIEF DESCRIPTION OF THE DRAWINGS FIGS. 1 to 7 relate to a first embodiment of the present invention,
FIG. 1 is an explanatory diagram showing the entire configuration of an endoscope device of an endoscope cover system. FIG. 2 is a perspective view showing the entire configuration of an endoscope cover. FIG. FIG. 4 is a perspective view showing the configuration of the distal end portion of the endoscope cover. FIG. 5 is a cross-sectional view showing the configuration of the distal end portion of the endoscope cover. FIG. 7 is a cross-sectional view showing a configuration of a rear end portion. FIG. 7 is a perspective view showing a configuration of a treatment tool raising operation mechanism. FIGS. 8 to 11 relate to a second embodiment of the present invention, and FIG. FIG. 9 is a transverse cross-sectional view showing the configuration of the distal end of the mirror cover. FIG. 9 is an axial cross-sectional view showing the configuration of the distal end of the endoscope for a cover to be inserted into the endoscope cover. FIG. 11 is a perspective view showing an external shape of a distal end portion of an endoscope. FIG. 11 shows a configuration of a modified example in which a rising direction of a forceps raising base is changed at a distal end portion of an endoscope cover. FIG. 12 to FIG. 14 relate to a third embodiment of the present invention, and FIG. 12 is a side view of the distal end of the endoscope cover viewed from above. FIG. 13 is the distal end of the endoscope cover. FIG. 14 is a sectional view taken along the line AA in FIG. 13; FIG. 15 is a treatment instrument insertion port in an endoscope operating section fixing mouth at the rear end of the endoscope cover. FIG. 16 is an explanatory cross-sectional view for explaining the first step of the assembling method. FIG. 16 is a second step of the assembling method of the treatment instrument insertion port in the endoscope operating portion fixing mouth at the rear end of the endoscope cover. FIG. 17 is a perspective view of a distal end component for explaining a configuration example of an air supply / water supply conduit provided in a distal end component of an endoscope cover. FIG. 18 is a distal end of an endoscope cover. FIG. 19 is a cross-sectional view taken along the line BB of FIG. 18. [Description of References] 1. Endoscope device of endoscope cover system 2. Cover Type endoscope 3 ... Endoscope cover with channel 4 ... Endoscope for cover 18 ... Insertion part cover part 19 ... Operation part cover part 20 ... Universal code cover part 31 ... Cover tip constituent part 32 ... Cover outer skin 33 ... Inside Mouth part 34 for fixing the distal end portion of the endoscope... Opening 35 for observation... Opening 36 for the treatment tool insertion port 37... Lever 41 for the treatment tool erecting hole 41 for insertion of the distal end portion of the endoscope 42. Tool channel 45 ... channel tube 46 ... treatment tool raising table 48 ... raising wire 49 ... wire tube 50 ... wire support member

Continued on the front page (72) Inventor Akira Suzuki 2-43-2 Hatagaya, Shibuya-ku, Tokyo O-limpus Optical Industry Co., Ltd. (72) Inventor Hideo Ito 2-43-2 Hatagaya, Shibuya-ku, Tokyo O-limpus Optics Within the Industrial Co., Ltd. (72) Inventor Minoru Yamazaki 2-43-2 Hatagaya, Shibuya-ku, Tokyo O-limpus Optical Industry Co., Ltd. (72) Inventor Osamu Mizuta 2-43-2 Hatagaya, Shibuya-ku, Tokyo O-limpus In Optical Industry Co., Ltd. (72) Inventor Tatsuya Furukawa 2-43-2 Hatagaya, Shibuya-ku, Tokyo O-limpus Optical Industry Co., Ltd. (56) References JP-A-58-44033 (JP, A) -54734 (JP, B2) (58) Fields investigated (Int. Cl. ⁷ , DB name) A61B 1/00-1/32

Claims (1)

(57) [Claim 1] There is a treatment instrument channel having a treatment instrument channel through which a treatment instrument is inserted, and a treatment instrument inserted through the treatment instrument channel and protruding from a distal end portion is moved to a predetermined position. An endoscope cover with a channel for covering at least an insertion portion of an endoscope, comprising an upper device, wherein an operation portion of the endoscope is provided at a base end portion of an insertion portion cover portion for covering the insertion portion of the endoscope. An endoscope operating portion fixing mouth body portion to be fixed is provided, and the endoscope operating portion fixing mouth body portion is connected to the treatment instrument raising device to operate the treatment tool raising device. A device operating member is disposed, and an endoscope distal end is inserted into a distal end of the insertion portion cover.
An insertion hole is provided, and the endoscope
An endoscope cover with a channel, wherein the section and the treatment instrument channel are separated .