JP2600218Y2 - Cover type endoscope device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a cover for preventing a cover endoscope from being erroneously combined with an endoscope cover when the cover endoscope is inserted into the endoscope cover for use. The present invention relates to a type endoscope device.

[0002]

2. Description of the Related Art In recent years, endoscopes have been widely used in the medical field and the like. In an endoscope used in the medical field, when inserted into a living body, an observation window provided at a distal end portion of an insertion portion may become dirty due to adhesion of dirt, mucus, or the like of an affected part, and may not be sufficiently observed. . Therefore, the endoscope is provided with an air-supply / water-supply function of supplying liquid to the observation window for cleaning or blowing off remaining water by air supply by operation at the hand side. This air supply function is also used when air is supplied into a body cavity to facilitate observation of an observation site. This air supply and water supply are supplied via an air supply pipe and a water supply pipe.

In addition, the endoscope is provided with a suction pipe for sucking and discharging unnecessary dirt, mucus, etc., and further, it is necessary to collect tissue with a biopsy forceps, perform a treatment with a treatment tool, and the like. In some cases, a forceps channel (treatment instrument channel) is provided to perform the operation.

[0004] In such endoscopes used in the medical field, those once used for patients and the like are subjected to washing or sterilization treatment in order to surely prevent infectious diseases 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 decreases.

[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.

According to this cover-type endoscope, a conduit opening into the body cavity of the patient is provided on the endoscope cover side, and observation means and illumination means which do not open into the body cavity of the patient are provided on the endoscope side. By covering with an endoscope cover, lighting means, and image quality,
Even with a very expensive video endoscope using a solid-state image sensor (SID) that can be easily projected on a monitor based on high evaluation of demonstration performance, etc., the video endoscope does not become dirty after use, and the endoscope is used. By disposing of the cover, cleaning and disinfection can be simplified.

A so-called cover-type endoscope of this type is disclosed in, for example, Japanese Patent Publication No. 2-54534 (US Pat.
722) or U.S. Pat. No. 3,162,190.

[0009]

When a cover-type endoscope is used, an optimal endoscope cover and a cover endoscope must be appropriately selected and used in combination. , The number of replacements also increases. At this time, the endoscope cover and the cover endoscope must be securely attached, but if they are erroneously attached, the original function of the endoscope cannot be sufficiently brought out.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a cover-type endoscope apparatus which can prevent erroneous mounting of an endoscope cover and a cover endoscope and is easy to use. And

[0011]

A cover type endoscope apparatus according to the present invention includes a cover endoscope having an endoscope cover and a cover endoscope which is used by being inserted into the endoscope cover. In the device, a first indicator provided on the endoscope cover, and the endoscope cover provided on the cover endoscope, wherein the endoscope cover is attached to an appropriate position with respect to the cover endoscope. And a second index positioned opposite to and near the first index.

[0012]

In the above construction, when the endoscope cover is mounted at an appropriate position with respect to the cover endoscope, the cover endoscope faces the first index provided on the endoscope cover. The erroneous mounting is prevented by the position of the second index provided in the.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings. 1 to 4 relate to an embodiment of the present invention, and FIG. 1 is a side view of a main part of an endoscope for an endoscope cover with a channel.
FIG. 3 is a diagram showing display contents of the display means, FIG. 3 is a schematic view of a main part of the cover-type endoscope device, and FIG.

As shown in FIG. 4, a cover type endoscope apparatus 1 is an endoscope cover with a channel (hereinafter abbreviated as "cover").
2A and an endoscope for an endoscope cover with a channel attached to the cover 2A (hereinafter abbreviated as "cover endoscope")
An endoscope with a channel-type endoscope having a cover 2B (hereinafter abbreviated as “cover-type endoscope”) 2, a light source device 3 for supplying illumination light to the cover endoscope 2B, and an inner cover A video processor 4 for performing signal processing on imaging means incorporated in the endoscope 2B, a fluid control device 5 for performing air supply / water supply via a tube of the cover 2A, and a cover 2A
Endoscope with a channel (hereinafter abbreviated as “expander”) 6 used to mount the cover endoscope 2B on the monitor, and a monitor for displaying a video signal processed by the video processor 4 7, a light source device 3, a video processor 4, a fluid control device 5, and an expander 6.
Is stored in a cart 8, and a monitor 7 is mounted on an upper surface of the cart 8.

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

Insert portion cover portion 11 constituting cover 2A
When the cover endoscope 2B is mounted on A, the cover holder 10 shown in FIG.
A is the base end side of the cover holding member 10a of the cover holding member 10.
Then, the endoscope insertion portion 11B of the cover endoscope 2B is mounted.

The endoscope 2B has an elongated and flexible endoscope insertion portion (hereinafter abbreviated as "insertion portion") 11B.
An endoscope operation unit (hereinafter abbreviated as “operation unit”) 12B formed on the proximal end side of the insertion unit 11B;
B, an illumination optical system and an objective optical system for forming a subject image on the image pickup means are provided at the tip of the insertion portion 11B. By connecting the connector 15 provided at the end of the light source device 3 to the light source device 3, a light guide (not shown) through which illumination light from a lamp inside the light source device 3 passes through the universal cord 13B and the insertion portion 11B. Is supplied to the above-mentioned illumination optical system.

The illumination light supplied to the illumination optical system is applied to an end face of the cover distal end 23A of the insertion section cover 11A opposite to an illumination window (not shown) of the distal end 23B of the insertion section 11B. The light is emitted to the subject side ahead through the transparent plate of the provided cover illumination window 25A.

The illuminated subject such as a diseased part includes a transparent plate of a cover observation window 26A provided adjacent to the cover illumination window 25A and a cover endoscope disposed inside the cover observation window 26A so as to face the cover observation window 26A. A solid-state imaging device (SID) disposed on a focal plane via an objective optical system provided in the insertion portion 11B of the mirror 2B
An optical image is formed on the imaging surface of the imaging means.

The optical image formed on the image pickup surface is photoelectrically converted, input to the video processor 4 via the signal cable 15a inserted through the insertion portion 11B and the universal cord 13B, and subjected to signal processing. A video signal is generated, and the video signal is input to the monitor 7 to display a subject image on a display screen.

The operation unit 12B and the cover endoscope 2B have an air supply / water supply switch 18, a suction switch 1
9. Each image switch 20 and a bending operation lever (not shown) are provided. By operating each switch and lever, image switching such as air / water supply, suction, or freeze / release is performed. And the bending angle and the like of the distal bending portion provided in the insertion portion 11B are set.

On the other hand, the cover 2A includes an insertion section 11B, an operation section 12B, and a universal cord 13 of the cover endoscope 2B.
The cover B includes an insert cover 11A, an operation cover 12A, and a universal code cover 13A.

The insertion portion cover portion 11A includes an insertion portion cover outer cover 21A for covering the insertion portion 11B, and an endoscope operation portion fixing mouth portion 22A airtightly provided at a base end of the insertion portion cover outer cover 21A. And a cover tip 23A provided hermetically at the end of the insertion portion cover outer cover 21A.

As shown in FIG. 3, the insertion portion cover portion 11A
Inside the air supply line 27A, the water supply line 28A and the suction line 2
9A and the like are formed. The air supply line 27A and the water supply line 28A are joined at the distal end side and communicate with a nozzle 24 provided on the end face of the cover distal end portion 23A, and the distal end opening of the nozzle 24 faces the outer surface of the cover observation window 26A. ing.

Further, the air supply line 27A and the water supply line 28
A, the proximal end side of the suction conduit 29A extends above the endoscope operation unit fixing mouth 22A, and the universal cord 13B
At the same time, it extends toward the fluid control device 5 in a state covered by the universal code cover 13A, the water supply line 28A faces the water supply tank 30, and the air supply line 27A is connected to the air supply pump 31. At the same time, the midway is branched to face above the water supply tank 30, and a suction pipe line 29A is connected to a suction pump 32.

The air / water switch 18 is a two-stage switch. When the air / water switch 18 is depressed by one stage, the air supply electromagnetic valve 34 controlled by the control circuit 33 is opened, and air is supplied from the air supply pump 31. This
In this case, the water supply solenoid valve 35 may be open or closed.
No. When the air / water switch 18 is pressed in two steps, the water supply electromagnetic valve 35 is opened, and the water stored in the water supply tank 30 is supplied. At this time, the air supply solenoid valve 34 is closed.
I have .

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

Therefore, when body fluid or the like adheres to the cover observation window 26A, the air / water switch 18 is operated to supply air or water through the air supply line 27A or the water supply line 28A, thereby causing the body fluid to flow. Etc. are removed.

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

Further, a mouth 22A for fixing the endoscope operating section is provided.
An opening 40 of an endoscope insertion channel 39 for inserting (attaching) the insertion portion 11B of the endoscope 2B for a cover is provided on the upper surface of the endoscope. The endoscope insertion channel 39 includes a cover distal end portion 23A and an insertion portion cover outer cover 21A.
And an air supply pipe 27A, a water supply pipe 28A, and a suction pipe 2 in an internal space surrounded by the endoscope operation section fixing mouth 22A.
9A is a portion into which the cover endoscope 2B except for 9A is inserted.

The expander 6 normally continues to supply air. Therefore, when the function of the expander 6 is not used,
As shown in FIG. 4, the distal end of the expansion tube 37 is not connected to the expansion tube opening 38, but communicates with the outside air.
When the cover endoscope 2B is to be inserted into the insertion portion cover 11A, the end of the extension tube 37 is pushed into the extension tube mouth 38 so as to be airtightly inserted (fitted) and connected. Then, the air supply from the dilator 6 is sent to the endoscope insertion channel 39 via the expansion tube mouth 38 to expand the endoscope insertion channel 39, thereby facilitating the insertion of the insertion portion 11B.

Further, as shown in FIG.
B and the main body surface of the cover endoscope 2B correspond to the air / water switch 18, the suction switch 19, each image changeover switch 20, the bending operation lever (not shown), and the like.
Each switch 18, 1 such as AW, S, F, R, V, etc.
Indications indicating the operating functions of the levers 9 and 20 and the lever are described. Each of these displays is displayed by, for example, silk printing with white characters on the surface of the black operation unit 12B. In addition, this display shows a molded product of colored characters by using the operation unit 12B and the endoscope 2 for the cover.
B may be adhered to the surface of the main body. In this case, the surface may be provided with irregularities so that it can be identified by the feel of a finger. Further, the display may not only represent the operation function, but also represent the operation method, the operation direction, and the contents of the operation means. In addition, if the display is identifiable, characters other than symbols,
It may be a color, a pattern, or the like.

The operation section cover 12A for covering the operation section 12B is preferably made of a soft resin made of transparent or translucent fluorine rubber, thin-film Teflon, or the like so that the above-mentioned indications can be recognized from the outside.

As shown in FIG. 1, position indicators 41, 42A, and 42B are provided on side surfaces of the operation portion 12B of the cover endoscope 2B and the insertion portion cover portion 11A. The triangular position indicators 42A and 42B are opposed to each other with the bar-shaped position indicator 41 interposed therebetween, and the insertion portion cover portion 11A is mounted at an appropriate position with respect to the cover endoscope 2B. Can be easily confirmed.
As a result, it is possible to prevent the mounting of the insertion portion cover 11A from being uncertain and falling off unexpectedly during an inspection or the like, thereby preventing the cover endoscope 2B from being contaminated.

The operation unit 1 of the cover endoscope 2B
Display means 43A and 43B are provided on the side surfaces of the insertion end cover 2A and the insertion portion cover 11A so that the features of the cover type endoscope 2 can be recognized at a glance. Items representing the features of the cover type endoscope 2 include an observation direction such as a direct view or a side view, an insertion section length, an insertion section outer diameter, an inner diameter of each conduit, and a bendable portion of the insertion section distal end bending section. The direction and the like can be considered.

As means for describing this feature, a predetermined character, symbol, color, or combination thereof may be displayed. Further, the display position is not limited, and any place on the cover-type endoscope 2 including the cover endoscope 2B and the cover 2A may be used as long as it can be recognized. good.

FIG. 2 shows a description example of the display means 43A and 43B for each model. For example, the display means 43A, 43B
To, if it is described as DF11 / 1600, cross section semi <br/> circular shape, direct-view, the outer diameter and the effective length of 11mm each insertion cover portion 11A, the cover-type endoscope of 1600mm 2 can be recognized as the cover endoscope 2B and the cover 2A. The display means 43A, 43B
In addition to the items described above, the outer diameter (diameter) of the insertion portion 11B of the cover endoscope 2B and the inner diameter of the forceps channel may be displayed.

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

First, after determining the outer diameter, effective length, etc. of the endoscope to be used according to the application and the affected part, the suitable endoscope 2B for covering and the cover 2 covering this endoscope 2B for cover are determined.
A display means 43B, 43 provided on each body surface
A is selected by recognizing the item described in A.

As a result, there is no erroneous combination of the cover endoscope 2B and the cover 2A that is compatible with the cover endoscope, and the checking operation can be simplified.

When the cover endoscope 2B is to be inserted (attached) into the insertion portion cover portion 11A of the selected cover 2, a semicircular cover holding member 10a provided on the holder 10 is provided.
Then, the flange portion at the upper end of the endoscope operation portion fixing mouth portion 22A is held.

Thereafter, when the distal end of the extension tube 37 is connected to the extension tube mouth 38 and the endoscope 2B for the cover is inserted into the opening 40, the outer cover 21A of the insertion portion expands and the insertion portion 11B is smoothly attached. Is done. At this time, the position indicator 42B provided on the side surface of the operation unit 12B of the cover endoscope 2B is aligned with the position indicator 42A provided on the side surface of the insertion portion cover outer cover 21A. As a result, erroneous mounting is prevented.

After the insertion operation is completed, when the distal end of the extension tube 37 is removed from the mouthpiece 38 of the extension tube, the outer cover 21A of the insertion portion contracts due to its elasticity (the outer diameter of the outer cover 21A of the insertion portion decreases), Insertion part 11 on its inner surface
The outer surface of B, that is, the outer skin of the insertion portion 11B comes into close contact with the outer surface.

The operation unit 1 of the cover endoscope 2B
Since the operation unit cover 12A that covers the 2B is transparent or translucent, the display indicating the operation functions of the operation switches 18 and 19 can be easily recognized from the outside. Therefore, erroneous operation during use can be prevented. FIG. 5 is a perspective view of two cover endoscopes having different functions and an insertion portion cover part commonly used for the two cover endoscopes.

The cover endoscope 2B can be broadly classified into a type in which the distal end bending portion 11a is bent in four directions with respect to the axis of the insertion portion 11B, and a type in which the end bending portion 11a is bent in two directions. If the former is referred to as a four-way curved endoscope 11Ba for a cover and the latter is referred to as a two-way curved endoscope 11Bb, the up, down, left, and right directions provided on an operation unit 12B of the four-way bent endoscope 11Ba for a cover. By operating the bending operation knobs 44a and 44b of
The four bending directions are combined so that the distal bending portion 11a can be bent in all directions, and the operability is good. on the other hand,
When the vertical bending operation knob 44c provided on the operation unit 12B of the two-way endoscope 2Bb for cover is operated, the distal bending portion 11a is bent in a two-dimensional direction.

The outer diameter and effective length of the insertion portion 11B of the endoscopes 2Ba and 2Bb for both covers, and the endoscope operation portion fixing mouth body attachment portion 22B provided on the base end side of the insertion portion 11B. The outer endoscope 2 has the same outer diameter and cross-sectional shape.
The inner diameter of the insertion portion cover 11A to be attached to the insertion portion 11B of Ba and 2Bb and the inner diameter of the inner surface of the endoscope operation portion fixing mouth 22A are the same as those of the insertion portions 11B of the endoscopes 2Ba and 2Bb for both covers. The outer diameter is the same as the inner shape of the endoscope operation unit fixing mouth body attachment unit 22B provided on the base end side of the insertion unit 11B.

As a result, the cover endoscopes 2Ba and 2Bb in different bending directions can be shared by one insertion portion cover portion 11A.

Conventionally, the outer diameter and cross-sectional shape of the insertion portion of the cover endoscope to be used, and the outer shape of the endoscope operation portion fixing mouth body attachment portion 22B provided on the base end side of the insertion portion 11B. There If different, also the insertion portion cover 11A to be mounted on the insertion portion 11B, not necessary to prepare in accordance with Re their, the combination of mounting is increased, erroneous mounting increases the user, for example, the inner diameter When the cover endoscope 2B of the insertion portion 11B having a large diameter is combined with the insertion portion cover portion 11A having a small thickness,
Although there was a problem in that the operation of the endoscope was hindered and the intrinsic function of the endoscope could not be sufficiently exhibited, according to this embodiment, the erroneous mounting of the insertion portion cover was eliminated, and the function of the endoscope was eliminated. Can be fully exhibited.

As shown in FIG. 6 and FIG. 7, a channel tube 51,
An air supply / water supply conduit 52, an endoscope insertion channel 53, and the like are separately mounted. For example, when the forceps or the endoscope 2B for cover is inserted into the channel tube 51 or the endoscope insertion channel 53, the channel tube 51 or the endoscope insertion channel 53 meanders in the insertion portion cover portion 11A. And forceps or cover endoscope 2B
It is difficult to smoothly insert
The water supply pipe 52 may be crushed to make it impossible to supply air or water, or the pipe may be damaged.

Therefore, as shown in FIGS. 8 and 9, the insertion portion cover outer skin 21A of the insertion portion cover portion 11A is knitted by a multi-lumen tube in which the channel tube 51 and the air / water supply conduit 52 are integrated.

As a result, the forceps or the endoscope 2B for the cover
Is inserted, the conduit does not meander in the insertion portion cover portion 11A, and the insertion is not only smooth, but also the durability is improved,
Damage to the device can be prevented beforehand.

As described above, according to the present invention, an object of the present invention is to provide a cover-type endoscope apparatus which can prevent erroneous mounting of an endoscope cover and a cover endoscope and is easy to use. Has an effect.

[Brief description of the drawings]

FIG. 1 is a side view of a main part of an endoscope for an endoscope cover with a channel.

FIG. 2 is a table showing display contents of a display means.

FIG. 3 is a schematic view of a main part of a cover-type endoscope device.

FIG. 4 is an overall schematic diagram of a cover-type endoscope device.

FIG. 5 is a perspective view of two cover endoscopes having different functions and an insertion portion cover portion shared by the two endoscopes;

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

FIG. 7 is a sectional view taken along line VII-VII of FIG. 6;

FIG. 8 is a longitudinal sectional view of an insertion portion cover portion.

9 is a sectional view taken along line IX-IX of FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Cover type endoscope apparatus 2 ... Endoscope cover 2B ... Cover endoscope 43A, 43B ... Display means

──────────────────────────────────────────────────続 き Continuing on the front page (72) Osamu Mizuta, creator Osamu Miyazaki 2-43-2, Hatagaya, Shibuya-ku, Tokyo Inside (72) creator 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 O-limpus Optical Co., Ltd. (72) Akira Suzuki 2-43-2, Hatagaya, Shibuya-ku, Tokyo No. Olympus Optical Co., Ltd. (72) Inventor Shigeru Nakajima 2-43-2, Hatagaya, Shibuya-ku, Tokyo In Olympus Optical Co., Ltd. (56) References Japanese Utility Model No. 2-91501 (JP, U) ( 58) Field surveyed (Int.Cl. ⁶ , DB name) A61B 1/00-1/32

Claims (1)

(57) [Scope of request for utility model registration] 1. A cover type endoscope apparatus comprising: an endoscope cover; and a cover endoscope which is used by being inserted into the endoscope cover, wherein a first end provided on the endoscope cover is provided. An index, provided on the cover endoscope, when the endoscope cover is mounted at an appropriate position with respect to the cover endoscope, facing the vicinity of the first index. 2. A cover-type endoscope apparatus, comprising: a second indicator located at a position.