JP3402646B2 - Endoscope with endoscope cover method - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an endoscope of an endoscope cover type in which the endoscope is mounted on the endoscope cover.

[0002]

2. Description of the Related 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 portion of the insertion portion may not be sufficiently observed due to adhesion of body fluid or the like. For this reason, an air supply conduit or a water supply conduit is provided so that a fluid can be sprayed onto the observation window to remove body fluid and the like adhering to the observation window by an operation on the hand side. Further, there is also a device provided with a suction pipe line for sucking and discharging unnecessary body fluid and the like.

Further, there is also one in which a forceps channel (treatment instrument channel) is provided so that a tissue can be collected by a biopsy forceps, a medical treatment can be performed by a treatment instrument, and the like.

[0004] When used in a patient or the like, an endoscope provided with a conduit such as the above-mentioned air supply conduit or a forceps channel is subjected to cleaning or sterilization. However, since it takes time to completely perform cleaning or sterilization, there are problems that the efficiency of use of the endoscope is reduced, and the work such as sterilization is troublesome.

For this reason, by using the endoscope itself covered with the endoscope cover, it is necessary to wash or sterilize the endoscope so as not to make it dirty even after use. Endoscope cover type endoscopes have been proposed.

For example, Japanese Patent Application Laid-Open No. 3-29634 discloses a cover in which the endoscope insertion portion is inserted into a cover (sheath) so as to cover the endoscope insertion portion. In order to facilitate the operation of attaching and detaching the endoscope insertion part in the cover, it is possible to blow air into the insertion part cover part where the endoscope insertion part is inserted from the cover expander to expand the inside of the insertion part cover part. Done.

In the above-mentioned conventional example, during the inspection, the endoscope of the endoscope cover system covered with the cover and the cart for the external device equipped with the external device such as the light source, the air / water supply device and the suction device are It is connected to the fluid conduit of the endoscope cover by the universal cord of the endoscope for the endoscope cover. In the endoscopic examination procedure, an operation of twisting or retracting an endoscope operation section connected to the endoscope insertion section is frequently performed. At this time, a considerable tensile force is applied to the fluid channel of the endoscope cover and the universal cord of the endoscope for the endoscope cover.

[0008]

If the tensile force is larger than the allowable level, the fluid channel of the endoscope cover or the universal cord of the endoscope for the endoscope cover will be disengaged from the external device. If the universal cord of the endoscope for the endoscope cover is disconnected, reconnect it.

However, if the fluid conduit of the endoscope cover is detached, the fluid conduit and the external device may become dirty.

The present invention has been made in view of the above-mentioned points, and provides an endoscope of the endoscope cover system which enables safe inspection without the fluid conduit of the endoscope cover coming off. The purpose is to do.

[0011]

An endoscope cover type endoscope according to the present invention is connected to an insertion section for inserting an observation image into a body cavity duct and a base end section of the insertion section. And an endoscope including a universal cord that is connected to the operation unit and transmits the observation image to an external device, and a distal end configuration unit and a proximal configuration unit to which the insertion unit of the endoscope is attached. Attach the insertion section cover section with the flexible tubular section and the operation section.
Operation part cover part and the code for attaching the universal cord.
An endoscope cover with a Dokaba portion, Rutotomoni least partially disposed within the tubular portion, Universal
And the external device by extending from the operation unit separately from the cord.
Is connected to a separate fluid control device, and
And a fluid conduit attached to the universal cord to the cover portion, the entire length of the fluid conduit being longer than the entire length of the endoscope including the insertion portion of the endoscope and the universal cord , Attach the mirror cover to the endoscope , connect the universal cord to an external device, and
When connected to the fluid control device, the flow and the operating unit
The universal co entire length of the fluid conduit between the body controller
Together longer than the total length of over de, a universal code
Even if it is stretched, the fluid line will be slack.
In addition, the fluid conduit is
It has a pipeline, a water pipeline, and a suction pipeline.
At the end of the channel on the side of the fluid control device, attach the lid of the water tank to
Characterized by being physically connected .

[0012]

1 to 6 relate to an embodiment of the present invention,
FIG. 1 is an overall view showing a configuration of a cover type endoscope apparatus including a cover type endoscope, FIG. 2 is a configuration diagram showing a configuration of an insertion portion cover portion, and FIG. 3 is a sectional configuration of the insertion portion cover portion. 4 is an explanatory view for explaining a connection state of the insertion end cover air supply conduit and the proximal end of the water supply conduit, and FIG. 5 is the entire length of the cover endoscope and the air supply conduit, the water supply conduit, and Explanatory drawing explaining the relationship with the full length of the cover containing a suction pipe line, FIG. 6 is an explanatory view explaining an example of the connection state of the universal cable of the endoscope for a cover, an air supply pipe line, a water supply pipe line, and a suction pipe line. Is.

As shown in FIG. 1, an endoscope cover type endoscope apparatus (hereinafter abbreviated as a cover type endoscope apparatus) 1
Is an endoscope of a channel-equipped endoscope cover type (hereinafter, referred to as a cover type), which includes an endoscope cover with a channel (hereinafter abbreviated as a cover) 2A and a cover endoscope 2B attached to the cover 2A. 2) and a light source device 3 for supplying illumination light to the cover endoscope 2B.
A video processor 4 for performing signal processing for the image pickup means built in the cover endoscope 2B, and a fluid control device 5 for supplying air and water through the tube of the cover 2A.
And a channel-equipped endoscope cover dilator used to mount the cover endoscope 2B on the cover 2A (hereinafter,
6 and a monitor 7 for displaying a video signal processed by the video processor 4. The light source device 3, the video processor 4, the fluid control device 5, and the expander 6 are carts 8. Stored in a cart 8
The monitor 7 is mounted on the upper surface of the.

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 new. It is characterized by being covered with a clean cover 2A and repeatedly used.

The cover endoscope 2B has an elongated and flexible endoscope insertion portion (hereinafter abbreviated as insertion portion) 11
B, an endoscope operation section (hereinafter abbreviated as operation section) 12B formed on the proximal end side of the insertion section 11B, and a universal cord 13B extended from the side section of the operation section 12B.
The connector 14 provided at the end of the universal cord 13B can be detachably connected to the light source device 3, and by connecting to the light source device 3,
Illumination light from a lamp inside the light source device 3 is supplied to the end of a light guide (not shown) inserted through the universal cord 13B. A cable 16 is extended from the connector 14 and a signal connector 17 at the end of the cable 16 is detachably connected to the video processor 4 so that the video processor 4 is provided near the tip of the insertion portion 11B. The image pickup signal output from the image pickup device is processed, and the observation image can be observed on the monitor 7.

The universal cord 13 is provided on the operation section 12B.
A bending operation knob (not shown) is provided on the side opposite to the side surface from which the base end of B projects, and the bending portion provided on the distal end side of the insertion section 11B can be bent. In addition, the operation unit 12B
The air / water switch 12a, the suction switch 12b,
An image changeover switch (not shown) or the like is provided, and by operating each switch, air supply / water supply, suction, image freeze, etc. can be performed.

On the other hand, the cover 2A is a cover endoscope 2B.
Is composed of an insertion section 11B having a semicircular cross section, 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 section (hereinafter, code cover) 13A.
At the base end of the insertion portion cover portion 11A, there is a forceps insertion opening 21, an extension tube opening 22 for connecting an extension tube 40 provided to the dilator 6, and the like, and an endoscope operation portion fixing opening portion 2
0 is provided.

Insert section cover section 11A, operation section cover section 1
The air supply conduit 24, the water supply conduit 23, and the suction conduit 30 that pass through 2A and the cord cover 13A are connected to the fluid control device 5. The midway portions of the air supply line 24 and the water supply line 23 are inserted into the pinch valves 26 and 25, respectively, and connected via a water supply tank 37 to an air supply mouthpiece 27 communicating with an air supply pump (not shown) of the fluid control device 5. There is. The fluid control device 5 controls the pinch valves 26 and 25 by the air / water supply switch 12a so that the air supply conduit 24 is opened during air supply and the water supply conduit 23 is opened during water supply.

A pinch valve 32 is provided in the middle of the suction pipe 30.
And the branch body 33 near the end of the suction conduit 28.
Is provided and is branched into a suction pipe line 31 and a suction pipe line 34. The end of the suction pipe line 34 is connected to a suction bottle 35 connected to a suction pump 36. By the suction switch 12b,
When the suction operation is performed, the suction pipeline 30 is opened and the suction pipeline 31 is closed. When the suction is not performed, the suction pipeline 30 is closed and the suction pipeline 31 is opened.
Controls the pinch valve 32.

Reference numeral 10 in the figure denotes a cover endoscope 2B.
A cover holder for holding the insert portion cover portion 11A in order to attach the insert portion cover portion 11A to the insert portion cover portion 11A. The insert portion cover portion 11A is held by the semicircular holding portion 10a of the cover holder 10 during attachment. It

As shown in FIG. 2 (a), the tip of the insertion portion cover portion 11A is composed of a tip forming portion 41,
The tip forming portion 41 has transparent windows 42 and 43 provided at positions corresponding to the illumination optical system and the observation optical system provided at the tip of the insertion portion 11B of the cover endoscope 2B. An insertion portion cover outer cover 45 for isolating the insertion portion 11B of the cover endoscope 2B from the external environment is airtightly connected, and the endoscope operation portion is provided on the proximal side of the insertion portion cover outer cover 45. A fixing mouth unit 20 is provided. Also,
As shown in FIG. 2B, the air supply conduit 24 and the water supply conduit 23.
The air and water supply nozzles 46a and 46b, which are integrally formed with the above, and which open toward the window 43, are provided.

An opening of an endoscope insertion channel 48 provided for insertion of the endoscope for a cover is provided on the hand side of the mouthpiece portion 20 for fixing the endoscope operation portion, and further, a tip forming portion 41.
A suction line 30 having an opening 44 opened at the tip surface of the
Air supply conduit 2 connected to air supply / water supply nozzles 46a, 46b
4. Pipe lines such as the water supply pipe line 23 project.

As shown in FIG. 3, the air supply conduit 24 and the water supply conduit 23 having a small outer diameter are provided on both sides of the suction conduit 30 having a large outer diameter.
Are arranged. With such a layout, the insertion portion cover portion 11A can be made thinner than in the case where the air supply conduit 24 and the water supply conduit 23 are arranged on the same side with respect to the suction conduit 30. In addition, since the layout is close to left-right symmetry, the amount of force required to bend the bending portion can be set to a relatively small value while the left and right sides are about the same.

Parts common to the connection portion of the suction pipe line 30, the air supply pipe line 24, and the water supply pipe line 23, which are incorporated in the cover portion of the insertion portion, which is different depending on the model of the cover endoscope 2B, with the fluid control device 5. By using, it is possible to facilitate connection with the fluid control device 5, and if the entire pipeline is shared, it is possible to supply low-cost disposable products at low cost.

As shown in FIG. 4, in the insertion portion cover portion 11A, a lid portion 37a of a water feeding tank 37 is integrally provided near the ends of the air feeding conduit 24 and the water feeding conduit 23. The air supply conduit 24 is composed of a branch body 61 and an air supply conduit 62 and an air supply conduit 6.
It is branched into three and is opened after the air supply conduit 63 and the water supply conduit 23 penetrate the lid portion 37a. Air line 63
The water supply conduit 23 is longer than that. Lid 37a
Is threadedly connected to the threaded portion 37b of the body 37c of the water tank 37. All the pipelines in the vicinity of the water supply tank 37 are integrated with the insertion portion cover portion 11A, and the pipelines can be treated as disposable. Since there is no pipe line in the repeatedly used portion of the water supply tank 37, the water supply tank 37 can be easily washed and disinfected, and infection can be prevented easily.

As shown in FIG. 5, the entire length B (see FIG. 5) of the suction conduit 30, the air supply conduit 24, and the water supply conduit 23 of the cover 2A (FIG. 5).
(B)) is set to be longer than the total length A (FIG. 5 (a)) of the total length of the insertion portion 11B, the operation portion 12B, and the universal cord 13B of the cover endoscope 2B.

The operation of the thus-configured endoscope of the endoscope cover system will be described.

In the same way as a general endoscope cover mounting method, a sterilized endoscope cover 2A is packed into a storage package of a cover (not shown), and the insertion portion cover portion 1 is inserted.
Take out 1A.

The cover endoscope 2 is attached to the insertion portion cover portion 11A.
When inserting the insertion portion 11B of B, and the insertion portion cover portion 1
When removing the insertion part 11B from 1A, the cover expander 6 is used.

The cover expander 6 is basically composed of an air supply pump (not shown) and an air supply line, and a mouthpiece to which the base end of the expansion tube 40 is connected is provided at the open end of the air supply line. There is. The cover extender 6 normally continues to deliver air. For this reason, when the function of the cover expander 6 is not used, the end of the expansion tube 40 is not connected to the expansion tube mouth 22 as shown in FIG. 1, but is opened to the outside air and leaks air. .

When the cover endoscope 2B is inserted into or removed from the insertion portion cover portion 11A, the flange portion at the upper end of the endoscope operation portion fixing mouth portion 20 is provided on the cover holder 10. The expansion tube 40 is attached to the expansion tube mouth 22 while being held by the semicircular holding portion 10a.
By performing an operation of pushing in the end of the, the airtight insertion (fitting) connection is made, and air is sent to the endoscope insertion channel 48 through the expansion tube mouth body 22, and the endoscope insertion channel 48 is inflated. , Endoscope insertion portion 11
B can be easily inserted and removed.

As described above, according to the cover-type endoscope apparatus 1 of the present embodiment, the total length B of the suction conduit 30, the air supply conduit 24, and the water supply conduit 23 of the cover 2A is the same as the cover endoscope 2B. Insertion part 11B, operation part 12B, universal cord 13
Since the length of each B is set to be longer than the total length A, even when the universal cord 13B is stretched as shown in FIG. The water conduit 23 is in a slack state. Therefore, even when the cover type endoscope 1 is pulled in a direction away from the cart 8, no stress is applied to the suction conduit 30, the air supply conduit 24, and the water supply conduit 23. Therefore, the suction conduit 30, the air supply conduit 24, and the water supply conduit 23 are connected to the fluid control device 5.
It is possible to prevent the laboratory from being contaminated without coming off.

In the present embodiment, the various pipelines do not have to be the suction pipeline 30, the air supply pipeline 24, and the water transport pipeline 23 integrally, and even if they are divided into a plurality, the total length of each of them is obtained. However, as described above, it may be set longer than the total length A in which the lengths of the insertion portion 11B, the operation portion 12B, and the universal cord 13B of the cover endoscope 2B are summed up.

Further, in the present embodiment, the respective lengths of the suction pipeline 34, the suction pipeline 30, which does not include the air pipeline 62, the air pipeline 24, and the water pipeline 23 (the length to the tip), By setting the insertion portion 11B, the operation portion 12B, and the universal cord 13B of the cover endoscope 2B to be longer than the entire length,
The effect of this embodiment can be further enhanced.

It should be noted that the insertion portion cover outer skin 40 and the lid portion 37
If a and the air supply conduit 63 are housed in the same sterilization pack, the handling becomes easy. Further, the branch body 61 and the air supply line 62
Is better if they are also stored at the same time, and further, the branch body 3
If the suction pipe line 31, the suction pipe line 31, and the suction pipe line 34 are also stored at the same time, the handleability is further improved.

Further, in the above embodiment, the endoscope of the endoscope cover system in which the direct-viewing type cover endoscope is attached to the cover has been described. However, the present invention is not limited to this, and for example, a side-viewing type cover endoscope can be used. The present invention is also applied to an endoscope of an endoscope cover system in which a side view type cover endoscope is attached to a cover having a transparent window portion at a position corresponding to the illumination optical system and the observation optical system of the endoscope. It goes without saying that you can do it.

Further, in the above-mentioned embodiment, the cover endoscope is explained by using the electronic endoscope in which the observation image is picked up by the built-in image pickup device, but the present invention is not limited to this, and the observation is performed by the image guide. It can also be applied to an endoscope of an endoscope cover type using an endoscope for a cover that transmits an image.

[0038]

As described above, according to the endoscope of the endoscope type of the present invention, the total length of the fluid conduit is determined by the total length of the endoscope including the insertion portion of the endoscope and the transmission means. Because it is long, the fluid line of the endoscope cover does not come off,
The effect is that the inspection can be performed safely.

[Brief description of drawings]

FIG. 1 is an overall view showing a configuration of a cover type endoscope apparatus including a cover type endoscope according to an embodiment of the present invention.

FIG. 2 is a configuration diagram showing a configuration of an insertion section cover section according to an embodiment of the present invention.

FIG. 3 is a cross-sectional view showing a cross-sectional structure of an insertion portion cover portion according to an embodiment of the present invention.

FIG. 4 is an explanatory diagram illustrating a connection state of the proximal end portions of the insertion part cover air supply pipe and the water supply pipe according to the embodiment of the present invention.

FIG. 5 is an explanatory diagram illustrating the relationship between the total length of the cover endoscope according to the embodiment of the present invention and the total length of the cover including the air supply conduit, the water supply conduit, and the suction conduit.

FIG. 6 is an explanatory diagram illustrating an example of a connected state of a universal cable, an air supply conduit, a water supply conduit, and a suction conduit of a cover endoscope according to an embodiment of the present invention.

[Explanation of symbols]

1 ... Cover type endoscope device 2 ... Cover type endoscope 2A ... cover 2B ... Cover endoscope 3 ... Light source device 4 ... Video processor 5 ... Fluid control device 6 ... Cover extender 7 ... Monitor 8 ... Cart 10 ... Cover holder 11A ... Insert section cover section 11B ... insertion part 12A ... Operation part cover part 12B ... operation part 13A ... Universal cord cover 13B ... Universal code 14 ... Connector 20 ... Mouth part for fixing endoscope operation part 21 ... Forceps insertion port 22 ... Expansion tube mouth 23 ... Water pipeline 24 ... Air supply line 30 ... Suction line 45 ... Insert section cover outer skin 46a ... Water supply nozzle 46b ... Air supply nozzle 48 ... Endoscope insertion channel

(72) Inventor Yoshihiro Iida 2-43-2 Hatagaya, Shibuya-ku, Tokyo Olympus Optical Co., Ltd. (72) Minoru Yamazaki 2-43-2 Hatagaya, Shibuya-ku, Tokyo Olympus Optical Kogyo Co., Ltd. (72) Inventor Akira Suzuki 2-43-2 Hatagaya, Shibuya-ku, Tokyo Olympus Optical Industry Co., Ltd. (72) Inventor Osamu Mizuta 2-43-2 Hatagaya, Shibuya-ku, Tokyo Olympus Optical Industry Co., Ltd. (56) Reference JP-A-4-354927 (JP, A) JP-A-58-192523 (JP, A) JP-A-58-32740 (JP, A) (58) Fields investigated ( Int.Cl. ⁷ , DB name) A61B 1/00-1/32

Claims (2)

(57) [Claims] 1. An insertion section for inserting an observation image into a body cavity duct, an operation section connected to a proximal end of the insertion section, and an observation section connected to the operation section for transmitting the observation image to an external device. Univers
An endoscope comprising a Sarukodo, attaching the insertion portion of the endoscope, the insertion portion cover portion having a distal end construction part and the base end configuration portion and the tubular portion of the flexible, the operating unit
The operation part cover part to be attached and the universal cord are attached
An endoscope cover with a cable cover section which, when at least partially Ru is disposed within the tubular portion co
In addition, extend it from the operation section separately from the universal cord.
Connected to a fluid control device that is separate from the external device,
Furthermore, with the universal cord on the cord cover part
And a fluid conduit to be mounted , wherein the entire length of the fluid conduit is longer than the entire length of the endoscope including the insertion portion of the endoscope and the universal cord, and the endoscope cover is provided inside the endoscope. It is attached to the viewing mirror, Yu
Connect the universal cord to an external device and
When connected to a control device, the operation part and the fluid control
With the overall length of the fluid conduit is longer than the total length of the universal code between devices, pitched universal cord
Even if it is in the state, make sure that the fluid line is slack.
An endoscope with an endoscope cover method characterized by the above. 2. The fluid conduits are an air supply conduit and a water supply conduit.
And a suction pipeline, and a fluid control device for the water pipeline.
At the end of the side, the lid of the water tank is integrally connected.
The endoscope cover system according to claim 1, wherein
Endoscope .