JPH0666603U - Cover-type endoscope device - Google Patents

Abstract

(57) [Summary] [Purpose] When connecting each pipe extending from a cover-type endoscope to an external connection device, the pipe can be distinguished at a glance. [Structure] Identification labels 27c, 28c, or the respective conduits 2 are provided at the proximal ends of the air supply conduit 27A and the water conduit 28A extending from the proximal end of the universal cord cover 13A.
7A and 28A, the identification index lines 27b and 28b, or the identification labels 27c and 28c and the identification index line 27b,
A combination with 28b is provided. Each pipeline 27A, 2
When connecting 8A to the external connection device, by checking the identification labels 27c and 28c or the identification index lines 27b and 28b, the types of pipelines can be distinguished at a glance and erroneous connections can be eliminated.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a cover-type endoscope that prevents erroneous connection of a plurality of conduits provided in an endoscope cover into which a cover endoscope is inserted to an external connection device.

[0002]

[Prior art]

 In recent years, endoscopes have been widely used in the medical field and the like. When an endoscope used in the medical field is inserted into a living body, the observation window provided at the distal end of the insertion section may become dirty due to adhesion of dirt, mucus, etc. on the affected area, and it may not be possible to fully observe it. It For this reason, the endoscope is provided with an air / water supply function of supplying liquid to the observation window for cleaning or manually operating the operator's hand side to blow the remaining water to the air. In addition, this insufflation function is also used when insufflating the body cavity to make it easier to observe the observation site. This air supply and water supply are supplied via an air supply line and a water supply line.

[0003] In addition, an endoscope is provided with a suction conduit for sucking and discharging unnecessary dirt, mucus, and the like, and further, tissue collection with biopsy forceps, therapeutic treatment with a treatment tool, and the like. Some have a forceps channel (treatment instrument channel) so that they can be used for such purposes.

In the endoscope used in the medical field as described above, the endoscope once used for a patient or the like is subjected to cleaning or sterilization treatment in order to reliably prevent an infectious disease and the like.

However, it takes time to completely clean and disinfect, not only the workability is poor, but also the use efficiency of the endoscope is reduced.

Therefore, recently, there is a so-called cover type endoscope that covers the endoscope itself with an endoscope cover and discards the endoscope cover for each floor to simplify cleaning and disinfection after use. Has been adopted.

According to this cover-type endoscope, a conduit opening into the body cavity of the patient is provided on the endoscope cover side, and an observing means and an illuminating means that do not open into the body cavity of the patient are provided on the endoscope side. Even with a very expensive video endoscope that uses a solid-state image sensor (SID) that can be easily displayed on a monitor by illuminating it and covering it with a high-quality evaluation and demonstration performance by covering it with an endoscope cover, After use, the video endoscope does not become unclean, and the endoscope cover can be discarded to simplify cleaning and disinfection.

A so-called cover-type endoscope of this type is disclosed, for example, in Japanese Examined Patent Publication No. 2-54734 (US Pat. No. 4,646,722) or US Pat. No. 3,162,190.

[0009]

[Problems to be solved by the device]

 By the way, the proximal ends of the water supply pipe, the air supply pipe, the suction pipe, etc. provided on the endoscope cover side are connected to an external connection device (fluid control device) via a connection portion.

This external connection device is provided with a pump and a solenoid valve, and air supply, water supply, and suction are performed by a switch provided on the operation section side of the endoscope.

However, air is a compressed fluid, liquid is an incompressible fluid, and if an appropriate flow rate is to be taken into consideration in consideration of the fluid resistance of each pipeline, the inside diameter of the pipeline is set to a suitable value. Must be set to size.

Therefore, for example, the air supply passage and the water supply passage generally have different inner diameters.

Since the endoscope cover is selected according to the cover endoscope to be used, the user connects the conduit and the external connection device, but the air supply conduit and the water supply conduit are connected. If the connection is incorrect, the fluid will be sent and water will be sent through a conduit that does not have the desired inner diameter. For example, if air is supplied through the water supply pipe, it will be over-insufflated, and if water is supplied through the air supply pipe, it will not be possible to obtain the desired amount of water, which will hinder the inspection. This also applies when the suction pipe is connected incorrectly.

The present invention has been made in view of the above circumstances, and when connecting each conduit extending from the endoscope to the external connection device, the conduits can be distinguished at a glance so that they are erroneously connected. It is an object of the present invention to provide a cover-type endoscope device that is easy to use and that prevents such problems.

[0015]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention provides a plurality of conduits having one end opening to a nozzle provided at the tip of an endoscope cover, and a plurality of connecting portions for selectively connecting the conduits and an external connection device. In the cover type endoscope apparatus including the above, at least one of the respective conduits and the respective connecting portions is provided with an identification means for distinguishing the conduits.

[0016]

[Work]

 In the above configuration, when selectively connecting each conduit extending from the endoscope and the external connection device at the connection part, the correspondence between each conduit and the above connection part is determined by The distinction is made with reference to the identification means provided on at least one of the connection portions.

[0017]

【Example】

 Embodiments of the present invention will be described below with reference to the drawings. 1 to 3 relate to an embodiment of the present invention, FIG. 1 is a cross-sectional view of an end portion of a universal cord cover at a proximal side, FIG. 2 is a schematic view of a main part of a cover-type endoscope device, and FIG. 3 is a cover. FIG. 1 is an overall schematic view of a type endoscopic device.

As shown in FIG. 3, a cover-type endoscope apparatus 1 includes a channel-equipped endoscope cover (hereinafter abbreviated as “cover”) 2A and a channel-equipped endoscope cover endoscope mounted on the cover 2A. (Hereinafter abbreviated as "cover endoscope") 2B with channel Endoscope cover type endoscope (hereinafter abbreviated as "cover endoscope") 2 and illumination for this cover endoscope 2B A light source device 3 for supplying light, a video processor 4 for performing signal processing for the image pickup means built in the cover endoscope 2B, and an external connection device for supplying air and water through the tube of the cover 2A. A fluid control device 5 as an example, an endoscope cover extender with a channel (hereinafter abbreviated as “dilator”) 6 used for mounting the cover endoscope 2B on the cover 2A, and the video processor 4 By The light source device 3, the video processor 4, the fluid control device 5, and the extender 6 are housed in a cart 8, and the monitor 7 is placed on the upper surface of the cart 8. Has been done.

When an endoscopic examination is performed, the clean cover 2A covers the clean cover endoscope 2B, and the cover 2A is discarded after the examination, while the cover endoscope 2B is replaced with a new one. It is covered with a clean cover 2A and used repeatedly.

When the cover endoscope 2B is attached to the insertion section cover section 11A that constitutes the cover 2A, the cover holder 10 shown in FIG. 3 is used. For example, the proximal end side of the insertion section cover section 11A is The endoscope insertion portion 11B of the cover endoscope 2B is mounted in a state of being hooked on the cover holding member 10a of the cover holder 10.

The cover endoscope 2B includes an elongated and flexible endoscope insertion portion (hereinafter abbreviated as “insertion portion”) 11B and an endoscope formed on the proximal end side of the insertion portion 11B. A mirror operation section (hereinafter abbreviated as "operation section") 12B and a universal cord 13B extending from the side of the operation section 12B are provided. The illumination optical system and the imaging means are provided at the tip of the insertion section 11B. An objective optical system for forming a subject image on the light source device 3 is provided, and a connector 15 provided at the end of the universal cord 13B is connected to the light source device 3 so that illumination light from a lamp inside the light source device 3 can be obtained. Is supplied to the illumination optical system via the universal cord 13B and a light guide (not shown) inserted through the insertion portion 11B.

Then, the illumination light supplied to this illumination optical system is the end surface of the cover tip portion 23A of the insertion portion cover portion 11A that opposes the illumination window (not shown) of the tip portion 23B of the insertion portion 11B. The light is emitted to the front side of the subject through the transparent plate of the cover illumination window 25A provided at.

A subject such as an illuminated diseased part is a cover provided adjacent to the cover illumination window 25A. A transparent plate of the observation window 26A, and a cover inside the cover observation window 26A that faces the observation plate 26A. An optical image is formed on the image pickup surface of an image pickup means such as a solid-state image pickup device (SID) arranged on the focal plane through an objective optical system provided in the insertion section 11B of the endoscope 2B.

The optical image formed on the image pickup surface is photoelectrically converted, is input to the video processor 4 through the signal cable 15a inserted in the insertion section 11B and the universal code 13B, is subjected to signal processing, and then is standardized. Such a video signal is generated, this video signal is input to the monitor 7, and the subject image is displayed on the display screen.

Further, the operation section 12B and the cover endoscope 2B are provided with an air / water supply switch 18, a suction switch 19, image switching switches 20, a bending operation lever (not shown), and the like. By operating the respective switches and levers, image switching such as air supply / water supply, suction, or freeze / release, and the bending angle of the tip bending portion provided in the insertion portion 11B are set.

On the other hand, the cover 2A is composed of an insertion section 11B of the cover endoscope 2B, an operation section 12B, an insertion section cover section 11A for covering the universal code 13B, an operation section cover section 12A, and a universal code cover 13A. Has been done.

The insertion section cover section 11A includes an insertion section cover outer cover 21A that covers the insertion section 11B and an endoscope operation section fixing mouth section 22A that is airtightly provided at the base end of the insertion section cover outer cover 21A. And a cover tip portion 23A that is airtightly provided at the end of the insertion portion cover outer cover 21A.

As shown in FIG. 2, an air supply conduit 27A, a water supply conduit 28A, a suction conduit 29A, etc. are formed in the insertion portion cover portion 11A. The air supply conduit 27A and the water supply conduit 28A are merged at the tip end side and communicate with the nozzle 24 provided on the end face of the cover tip end portion 23A, and the tip end opening of the nozzle 24 faces the outer surface of the cover observation window 26A. is doing .

Further, the proximal ends of the air supply conduit 27A, the water supply conduit 28A, and the suction conduit 29A extend above the endoscope operation part fixing mouth 22A, and together with the universal cord 13B, It is extended to the fluid control device 5 side while being covered with the universal cord cover 13A. The proximal end of each of the conduits 27A, 28A, 29A protruding from the base end of the universal cord cover 13A has an air supply connection part 27a, a water supply connection part 28a, and a suction connection part provided in the fluid control device 5. 29a are connectable to each. In addition, reference numeral 13a in FIG. 1 is an insertion portion for inserting the universal code 13B in the universal code cover 13A.

The water supply connection portion 28 a faces the water supply tank 30, the air supply connection portion 27 a communicates with the air supply pump 31, and the middle of the water supply connection portion 27 a branches to face above the water supply tank 30. Further, the suction connection portion 29a is communicated with the suction pump 32.

The air supply / water supply switch 18 is a two-stage switch, and when it is pressed by one stage, the air supply solenoid valve 34 controlled by the control circuit 33 opens and air supply from the air supply pump 31 is performed. Further, when the air / water supply switch 18 is pressed in two stages, the water supply solenoid valve 35 is opened, and the water stored in the water supply tank 30 is supplied. At this time, the solenoid valve 34 may be open or closed.

On the other hand, when the suction switch 19 is pressed, the suction electromagnetic valve 36 controlled by the control circuit 33 is opened, and the suction pump 32 performs suction.

Therefore, when dirt, mucus, or the like adheres to the cover observation window 26A, the air / water supply switch 18 is operated to supply air or water through the air supply conduit 27A or the water supply conduit 28A. By doing so, the dirt, mucus and the like are removed.

The inner diameters of the air supply conduit 27A and the water supply conduit 28A are set in accordance with the flow rates of the fluids flowing in the respective conduits 27A and 28A. In the illustrated embodiment, the “air supply conduit 27 There is a relation of “inner diameter of A <inner diameter of water supply conduit 28A”.

Further, at least the proximal ends of the air supply conduit 27A and the water supply conduit 28A are provided with an identifying means for distinguishing the respective conduits 27A, 28A. As the identification means, (1) the color of each of the conduits 27A and 28A itself is changed.

(2) Index lines 27b and 28b are provided on the respective pipelines 27A and 28A, and the color of each index line 27b and 28b is changed.

(3) The line type of each of the index lines 27b and 28b is changed.

(4) Identification labels 27c and 28c are provided on the respective conduits 27A and 28A, and identification colors, symbols and marks are indicated on the identification labels 27c and 28c.

(5) The size of the identification labels 27c and 28c is changed.

(6) The positions where the identification labels 27c and 28c are attached are shifted.

(7) “WATER” is displayed on the proximal end of the water supply conduit 28A or on the identification label 28c, while it is displayed on the proximal end of the air supply conduit 27A or the identification label 27c. It is displayed as "AIR".

It is conceivable to use the above or the like or one of them in combination as one identification means.

The identification means similar to the above (1) to (7) is also provided on the fluid control device 5 side of the connection portions 28a and 27a.

On the other hand, the suction pipe 29A and the suction connecting portion 29a may be similarly provided with an identifying means, but if the pipe lines are only three systems, one pipe line may not be identified. It can be easily distinguished from the pipeline.

An extension tube mouth 38 for connecting the extension tube 37 connected to the dilator 6 is provided on the side surface of the endoscope operation section fixing mouth section 22A.

The dilator 6 normally continues to supply air. Therefore, when the function of the dilator 6 is not used, the end of the dilation tube 37 is not connected to the dilation tube port 38 as shown in FIG. 3, but communicates with the outside air. When inserting the cover endoscope 2B into the insertion portion cover 11A, an operation of pushing the end of the expansion tube 37 into the expansion tube mouth 38 is performed to hermetically insert (fit). ) It is connected, and the air supplied from the dilator 6 is sent into the endoscope cover 2A through the expansion tube mouth 38 and inflates the inside to facilitate the insertion of the insertion portion 11B.

Next, the operation of the above embodiment will be described.

When the cover endoscope 2B to be used is determined, the endoscope cover 2A suitable for the cover endoscope 2B is selected.

When the cover endoscope 2B is inserted (installed) into the insert portion cover portion 11A of the selected cover 2A, the semicircular cover holding member 10a provided in the holder 10 is used to operate the endoscope. The flange portion at the upper end of the portion fixing mouth portion 22A is held.

After that, when the end of the expansion tube 37 is connected to the expansion tube mouth 38 and the cover endoscope 2B is inserted into the opening 40, the insertion portion cover outer cover 21A swells and the insertion portion 11B smoothly moves. It is installed.

After the insertion operation is completed, when the end of the expansion tube 37 is removed from the expansion tube mouth 38, the insertion portion cover outer cover 21A contracts due to its elasticity (the outer diameter of the insertion portion cover outer cover 21A becomes smaller). The outer surface of the insertion portion 11B, that is, the outer skin of the insertion portion 11B is in close contact with the inner surface thereof.

When the cover-type endoscope 2 completed by being assembled in a predetermined manner is used, first, the air supply duct 27A extending from the proximal end of the universal cord cover 13A of the endoscope cover 2A, The respective ends of the water supply conduit 28A and the suction conduit 29A are connected to the air supply connection part 27a, the water supply connection part 28a, and the intake connection part 29a on the fluid control device 5 side.

At this time, from the display of the air supply conduit 27A, the water supply conduit 28A on the proximal side, and the identification means 27b, 28b, 27c, 28c provided on the connection parts 27a, 28a, Correspondence between the pipeline and each of the above-mentioned connecting parts is distinguished. Further, the connection of the suction pipe line 29A is similarly distinguished. If each of the above-mentioned pipelines has only three systems, it is possible to easily distinguish them without providing the identifying means in the suction pipeline 29A.

As a result, the confirmation work at the time of connection can be shortened, and moreover, erroneous connection can be prevented in advance.

By the way, FIG. 4 is a perspective view of the operation section cover and the endoscope operation section, and as shown in the figure, the operation section cover of the endoscope cover 2A that covers the operation section 12B of the cover endoscope 2B. 12A is divided into two parts by the operation part front cover 12a and the operation part back cover 12b. The operation section front cover 12a is made of an elastic body such as fluororubber or thin film Teflon, and the operation section back cover 12b is made of fluororubber, fluororesin, polysulfone, silicone resin or the like.

The inner surfaces of both the covers 12a and 12b are formed in a shape that follows the outer shape of the operation portion 12B, and therefore, the air supply switch 18a and the water supply provided on the operation portion 12B of the operation portion front cover 12a. Positions corresponding to the switch 18b, the suction switch 19, and the freeze switch 20, which is one of the image switching switches, are formed in a ridge. Each of the switches 18a, 18b, 19 and 20 has a built-in electric switch, and the push button portion is made of fluororesin, silicone resin, etc., and is attached to the operation portion 12B in a watertight manner. There is. In addition, in Fig. 4, air and water are provided as separate switches to have independent functions.

On the other hand, at the positions corresponding to the respective switches 18a, 18b, 19, 20 on the operation unit front cover 12a, the display units 18c, 18d for displaying the operation contents of the respective switches 18a, 18b, 19, 20. , 19a, 20a are provided. Further, the display portions 18c, 18d, 19a, 20a may be formed in a concavo-convex shape integrally with the operation portion front cover 12a so that the functions can be identified by the feel, or a separate character or mark. The molded product of may be adhered. If the operation unit front cover 12a is black, the display units 18c, 18d, 19a and 20a may be displayed in white or in different colors according to the function. That is, the display contents of the display units 18c, 18d, 19a, 20a may be any other than the characters, such as symbols, colors, etc. that can identify the function.

According to this embodiment, since the function of each switch 18a, 18b, 19, 20 can be immediately recognized by the display of the display units 18c, 18d, 19a, 20a, erroneous operation can be prevented. It is possible and convenient to use.

Further, FIG. 5 shows a cross-sectional view of the insertion portion cover outer cover 21A.

As shown in this figure, the conduits such as the air supply conduit 27A, the water supply conduit 28A, the forceps channel 51A, and the like except the cover tip portion 23A of the insertion portion cover portion 11A of the endoscope cover 2A. In the portion, when the bending operation is performed, if the fixing means 53 is fixed at one or more positions at a position where they do not interfere with each other on the inner surface of the insertion portion cover outer cover 21A of the insertion portion cover portion 11A. Each pipe line does not cause meandering, bending, twisting, crushing, etc., the durability is improved, and unexpected damage can be avoided in advance.

The fixing means 53 is preferably an elastic adhesive, and the conduits 27A, 28A, 51A are made of the same material (for example, fluorocarbon resin) as the insert cover portion 11A, and are welded by heat. You may do it. Further, as shown in FIG. 6, when it is desired to dispose the pipe lines 27A, 28A, 51A and the insertion portion cover outer cover 21A at a predetermined interval, the pipe lines 27A, 28A, 51A and the insertion lines are inserted. The outer cover 21A and the partial cover outer skin 21A may be adhered or welded to each other via a spacer 52 at a predetermined interval in the longitudinal direction. In addition, it is desirable that the distance between the spacers 52 be 3 to 50 cm.

Further, in the figure, reference numeral 53A is an endoscope insertion channel, 51a is a forceps insertion opening, 51b is a forceps outlet, and 54 is an endoscope distal end constituent portion provided at the distal end of the insertion portion of the cover endoscope 2B. Reference numeral 55 is a signal line, 56 is a joint piece that controls the bending operation, 57 is a joint shaft, and 58 is a solid-state imaging device.

On the other hand, conventionally, as shown in FIG. 7 (a), since the tip ends of the respective conduits 27 A, 28 A, 51 A are fixed only at the cover tip 23 A, the other portions are not connected to each other. The ducts 27A, 28A, 51A are free to move inside the insert cover outer skin 21A, and when the tip bending portion bends, the ducts 27A, 28A, 51A interfere with each other to cause bending, twisting, crushing, etc. Was occurring. Further, for example, when the force channel 51A is bent, a treatment tool such as forceps to be inserted into the forceps channel 51A cannot be smoothly inserted, which may hinder the inspection.

Therefore, as shown in FIG. 7 (b), there is one in which the insertion portion cover outer cover 21A is configured by a multi-lumen tube in which the respective channels 27A, 28A, 51A are integrated, but in a multi-lumen tube, The hardness when the tip bending portion of the endoscope insertion portion 11B of the cover endoscope 2B inserted through the endoscope insertion channel 53A is bent is different in the vertical and horizontal directions of FIG. 7 (b). The flexibility varies. Since the flexibility of the insertion portion cover outer cover 21A affects the bending operability of the tip bending portion, it is not convenient to use. In addition, the resistance against bending in the direction of poor flexibility is reduced, and the life of the cover endoscope 2B is shortened.

Further, as shown in FIG. 6, when fixing both end portions of the insertion portion cover outer cover 21A to the cover distal end portion 23A and the endoscope operation portion fixing mouth portion 22A in a watertight state, the insertion portion By setting the inner diameter of the cover outer cover 21A to be equal to or slightly larger than the outer diameter of the insertion end cover outer cover mounting portion provided on the cover distal end portion 23A and the endoscope operating portion fixing mouth 22A, It is possible to improve the assemblability of the insertion portion cover portion 11A.

By the way, FIG. 8 is a cross-sectional view of the universal cord cover 13A on the proximal side, which includes the suction conduits 29Aa and 29Ab having different diameters.

The suction conduits 29Aa and 29Ab having different diameters are selectively used according to the model of the cover endoscope 2B to be combined, but as shown in the figure, these suction conduits 29Aa and 29Ab are not used. A pinch valve tube 29A of the same size or the same standard is connected to the end on the proximal side, and is connected to the suction pump 32 through a pinch valve 36 which is a suction electromagnetic valve of the fluid control device 5 which is a common external connection device. To do.

The pinch valve 36 is connected to the suction switch 19 or the like provided on the endoscope operation section 12B and is switched by crushing the middle of the pinch valve tube 29A.

Conventionally, the suction pipe lines 29Aa and 29Ab having different diameters were connected to the suction pump 32 through the pinch valve 36 of the fluid control device 5, but the diameter of the pinch valve 36 that can be controlled is limited. However, the fluid control device 5 is not applicable to all the suction conduits 29Aa and 29Ab, and the pinch valve tube 29A having the same size or the same standard is provided as the connecting portion, so that the fluid control device 5 can be commonly used, which is convenient.

Further, even if there are many conduits extending from the universal cord cover 13A, the pinch valve tubes 29A used for the suction conduits 29Aa and 29Ab are common, so that the model to be used is different. Since the pinch valve tube 29A is common, at least the suction conduit 29Aa (or 29Ab) is not erroneously connected to the fluid control device 5.

In this embodiment, the pipe line to be applied is not limited to the suction pipe line 29A as long as the connection portion is shared.

[0072]

[Effect of device]

 As described above, according to the present invention, a plurality of conduits, one end of which is provided at the tip of the endoscope cover and which open to the nozzle, and a plurality of conduits that selectively connect these conduits to an external connection device are provided. Since the identification means for distinguishing the pipeline is provided on at least one of the connection parts of the above, when the above pipelines are connected to the external connection device, the types of pipelines can be distinguished at a glance and erroneous connection can be prevented. It is prevented and is easy to use.

[Submission date] September 8, 1993

[Procedure Amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0006

[Correction method] Change

[Correction content]

[0006] Therefore, recently covering the endoscope itself endoscope cover, cleaning after use by discarding the endoscope cover every Case, to simplify sterilization, so-called cover-type endoscope Has been adopted.

[Procedure Amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0031

[Correction method] Change

[Correction content]

The air supply / water supply switch 18 is a two-stage switch, and when it is pressed by one stage, the air supply solenoid valve 34 controlled by the control circuit 33 opens and air supply from the air supply pump 31 is performed. The door-out water supply solenoid valve 35 may be open or closed. Further, when the air / water feeding switch 18 is pushed in two stages, the water feeding solenoid valve 35 is opened, and the water stored in the water feeding tank 30 is fed. At this time, the solenoid valve 34 is closed .

[Procedure 3]

[Document name to be amended] Statement

[Correction target item name] 0067

[Correction method] Change

[Correction content]

The suction conduits 29Aa and 29Ab having different diameters are selectively used according to the model of the cover endoscope 2B to be combined, but as shown in the figure, these suction conduits 29Aa and 29Ab are not used. the proximal end to connect the pinch valve tube 29 a of the same size or the same standard as the connection portion, to a suction pump 32 through a pinch valve 36 is suction solenoid valve of the fluid control system 5, which is a common external connection device Connecting.

[Procedure amendment 4]

[Document name to be amended] Statement

[Correction target item name] 0068

[Correction method] Change

[Correction content]

[0068] so that switched by the pinch valve 36 communicates motion to the suction switch 19 or the like provided in the endoscope operation section 12B, collapsing the middle of the pinch valve tube 29 a.

[Procedure Amendment 5]

[Document name to be amended] Statement

[Correction target item name] 0069

[Correction method] Change

[Correction content]

Conventionally, the suction pipe lines 29Aa and 29Ab having different diameters were connected to the suction pump 32 through the pinch valve 36 of the fluid control device 5, but the diameter of the pinch valve 36 that can be controlled is limited. cage, all the suction channel 29Aa, but the present invention is applied to 29Ab, by providing the Pinchibaru Buchubu 29 a of the same size or the same standard as the connection portion, which is convenient can share the fluid control system 5.

[Procedure correction 6]

[Document name to be amended] Statement

[Name of item to be corrected] 0070

[Correction method] Change

[Correction content]

[0070] Moreover, since the universal cord cover 13A suction channel even for the conduit are a number extending from 29Aa, the pinch valve tube 29 a using the 29Ab are common, model to be used in different also pinch valve tube 29 a is commonly not Runode, never at least the suction channel 29Aa (or 29Ab) connected erroneous against the said fluid control system 5.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a hand side end of a universal cord cover.

FIG. 2 is a schematic view of a main part of a cover-type endoscope device.

FIG. 3 is an overall schematic view of a cover-type endoscope device.

FIG. 4 is a perspective view of an operation unit cover and an endoscope operation unit.

FIG. 5 is a sectional view of the outer cover of the insertion portion cover.

FIG. 6 is a longitudinal sectional view of an outer cover of an insertion portion cover.

FIG. 7 is a cross-sectional view of a conventional insert cover outer cover.

FIG. 8 is a sectional view of each side of a universal cord cover on the near side, which includes suction conduits having different diameters.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Cover-type endoscope apparatus 2 ... Endoscope cover 2B ... Cover endoscope 5 ... External connection device 24 ... Nozzle 28A, 29A ... Pipeline 28a, 29a ... Connection part 28b, 28c, 29b, 29c ... Identification means

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Osamu Mizuta 2-43-2 Hatagaya, Shibuya-ku, Tokyo Inside Olympus Optical Co., Ltd. (72) Minoru Yamazaki 2-43-2 Hatagaya, Shibuya-ku, Tokyo No. Olympus Optical Co., Ltd. (72) Inventor Hideo Ito 2-43-2 Hatagaya, Shibuya-ku, Tokyo Olympus Optical Co., Ltd. (72) Akira Suzuki 2-43-2, Hatagaya, Shibuya-ku, Tokyo No. Olympus Optical Co., Ltd. (72) Inventor Shigeru Nakajima 2-34-2 Hatagaya, Shibuya-ku, Tokyo Olympus Optical Co., Ltd.

Claims (1)

[Scope of utility model registration request] 1. A cover type having a plurality of conduits, one end of which is opened to a nozzle provided at a tip of an endoscope cover, and a plurality of connecting portions which selectively connect each of the conduits and an external connection device. In the endoscope device, a cover-type endoscope device characterized in that at least one of the respective pipelines and the respective connecting portions is provided with an identification means for distinguishing the pipelines.