JPH0668711U - Endoscope for endoscope cover - Google Patents

Abstract

(57) [Abstract] [Purpose] The hand with the insertion part covered by the cover can perform the bending operation without touching the place where the other hand in charge of the dirty area touches, and it has excellent bending operability. To provide an endoscope for an endoscope cover. [Structure] A desired bending operation can be obtained by operating any of the left and right bending operation angle knobs 89 and 90 which are provided in the operation unit 12 and are separate bodies. Then, the hand holding the insertion portion 14 which should be in the clean area and the hand holding the operation portion 12 which is the unclean area are operated by operating the bending operation angle knobs 89 and 90, respectively, which are different from each other. It is possible to prevent bacteria and dirt from coming into contact with each other.
Therefore, cross infection can be prevented.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an improvement of an endoscope for an endoscope cover which has a bendable bending portion while wearing a cover to prevent cross-infection between cases.

[0002]

[Prior art]

 It is necessary to use a clean endoscope that has been thoroughly washed and disinfected before the examination.

After the endoscope is used in the body cavity of a patient, the endoscope is cleaned and disinfected, but this cleaning and disinfection takes a very long time. Therefore, in recent years, when performing an endoscopic examination, a disposable endoscope cover type endoscope has been proposed instead of the conventional reusable endoscope.

The endoscope of the endoscope cover system is composed of a combination of an endoscope cover that covers the outer periphery of the endoscope insertion portion and the like, and a cover endoscope that is inserted into the endoscope cover. . Examples of endoscopes of the endoscope cover system include those described in Japanese Patent Publication No. 2-54734 and USP 3,162,190.

In the cover endoscope to which the endoscope cover is attached, generally, an imaging system or an observation optical system and a light guide fiber are provided in the insertion portion.

Here, the treatment instrument channel, the air supply / water supply pipe, and the like may be contaminated with body fluid and the like, and since they are elongated, they are difficult to clean and disinfect. In view of this, some endoscope covers are equipped with a treatment tool channel, open-ended pipes such as an air / water supply pipe.

The insertion portion of the endoscope for the endoscope is cleaned and sterilized in advance. Then, with the endoscope cover covering the insertion part of the endoscope, etc., insert the endoscope into the body cavity of the patient, and after use, remove the endoscope cover and discard it. . Thus, by disposing the endoscope cover for each patient, the endoscope does not need to be washed and disinfected, which is very simple. Further, the endoscope can be continuously used without re-cleaning and re-disinfecting.

Further, the cover endoscope has a bending mechanism that bends a bending portion provided in the insertion portion, as in the conventional cover-less endoscope. The bending mechanism bends the bending portion according to the operation amount of an angle knob provided on the operation portion of the cover endoscope.

The endoscope cover is generally composed of a plurality of cover members. For example, the endoscope cover includes an insertion section cover section that covers the insertion section of the endoscope, an operation section cover section that covers the operation section, and a code cover section that covers the universal cord.

[0010]

[Problems to be solved by the device]

 Conventionally, the operation section of the endoscope is used as a dirty area (temporarily, it may be dirty) and used as a recourse (repeatedly used), and the insertion section cover section of the endoscope cover is a clean area (dirt area). It is considered a disposable (disposable) area because it is a difficult area.

In order to keep the hand holding the insertion part (generally the right hand) clean, the angle knob provided on the operation part of the endoscope is a hand holding the operation part (generally the left hand). It is necessary to operate with.

However, skill is required and it is cumbersome to operate the angle knob with only the hand holding the operation portion.

According to the present invention, the hand having the insertion portion covered with the cover can perform the bending operation without touching the place where the other hand in charge of the unclean area touches, and is excellent in the bending operability. An object is to provide an endoscope for an endoscope cover.

[0014]

[Means for Solving the Problems]

 The endoscope cover endoscope of the present invention has a bending operation mechanism, and the bending operation mechanism includes a right-hand angle knob that is provided in the operation portion and that is operated by the right hand. The right hand bending operation mechanism that changes the bending amount of the bending portion according to the operation amount of the right hand angle knob and the left hand angle knob that is provided in the operation unit separately from the right hand angle knob and that is operated by the left hand. In addition to the above, a left-handed bending operation mechanism that changes the bending amount of the bending portion according to the operation amount of the left-handed angle knob is provided.

[0015]

[Work]

 In the configuration of the present invention, the left hand angle knob and the right hand angle knob are separately provided for the hand that holds the insertion part, which should be in the clean area, and the hand that holds the operation part, which is the unclean area. Since they can be operated separately, the bending operation is easier and easier than the bending operation with one hand.

Further, in the above configuration, even without using the angle knob operated by the hand in charge of the unclean area, the hand in charge of the clean area can perform the bending operation, and the insertion of the clean area can be performed through the common angle knob. It doesn't make the hands holding the parts dirty.

[0017]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. 1 to 5 relate to a first embodiment of the present invention, FIG. 1 is an overall external view of an endoscope apparatus to which a cover endoscope is connected, and FIG. 2 is an external view of a cover endoscope. 3, FIG. 3 is an explanatory view of the attachment of the angle knob, FIG. 4 is a side sectional view of the distal end side of the cover type endoscope, and FIG. 5 is a sectional view showing a configuration of a bending operation mechanism.

An endoscope device 86 shown in FIG. 1 is a device to which a channel-covered endoscope cover type endoscope (hereinafter referred to as a cover type endoscope) 87 can be detachably connected.

The cover-type endoscope 87 is composed of a combination of the insertion-portion cover portion 22 and an endoscope for an endoscope cover with a channel (hereinafter, abbreviated as a cover endoscope) 88. The cover endoscope 88 is of an electronic type.

The insertion portion cover portion 22 covers the insertion portion 14 of the cover endoscope 88 shown in FIG. 2 and does not require cleaning and disinfection of the endoscope after the inspection. The cover endoscope 88 is used for inspection in a state where the cover portion 22 is attached to the insert portion and is covered in a watertight manner.

The endoscope device 86 includes the cover-type endoscope 87, the cart 5 in which various peripheral devices connected to the cover-type endoscope 87 are installed, and the cover-type endoscope 87. And a cover holder 6 for holding.

The cart 5 accommodating the peripheral devices shown in FIG. 1 includes, for example, a light source device 7, a video processor 8, a fluid control device 9, and an endoscope cover dilator (hereinafter abbreviated as dilator) with a channel. 10 are stored. A monitor 11 is mounted on the top plate of the cart 5.

The light source device 7 supplies illumination light to the cover endoscope 88 of the cover-type endoscope 87. The video processor 8 is connected to an electronic cover endoscope 88, converts an electric signal from the endoscope into a standard video signal, and outputs the standard video signal to the monitor 11. The monitor 11 receives the video signal and displays an endoscopic image.

Further, the fluid control device 9 performs air supply / water supply, etc., through a conduit serving as a channel, which will be described later, provided in the insertion portion cover portion 22. For this reason, the fluid control device 9 is provided with a water supply source, an air supply source not shown, and the like. The pipes connected to the air supply source and the water supply source are controlled to be opened and closed by a solenoid valve.

Further, the expander 10 is for injecting air into the insertion section cover section 22 to expand the insertion section cover section 22. Due to this expansion, the insertion portion cover portion 22 facilitates mounting or removal of the cover endoscope 88.

As shown in FIG. 2, the cover endoscope 88 includes an operating portion 12, a universal cord 13 extending from a side portion of the operating portion 12, and an insertion portion connected to the operating portion 12. It is composed of 14 and. As shown in FIG. 2, the insertion portion 14 of the cover endoscope 88 includes a flexible tube portion 15, a bendable bending portion 16 and a hard bending portion 16 in that order from the proximal end side of the operation portion 12 toward the distal end. And a tip portion 17 of the.

The insertion portion 14 of the cover endoscope 88 has a small diameter and is formed, for example, in a D-shaped cross section. Further, an illumination optical system (not shown) and an objective optical system 42 shown in FIG. 4 are arranged at the tip portion 17 of the cover endoscope 88. The insertion portion 14 of the endoscope 88 may be cylindrical in shape.

An emission end of a light guide fiber (not shown) is arranged at the rear end of the illumination optical system, and the light guide fiber is inserted through the insertion portion 14, the operation portion 12, and the universal cord 13. .

A connector 19 is provided at an end of the universal cord 13, and the connector 19 is detachably connected to a connector receiving portion 7 a provided on the light source device 7. . Then, illumination light is supplied from the light source device 7 to the incident end of the light guide fiber.

As shown in FIG. 4, at the rear end of the objective optical system 42, a solid-state image pickup device 20 for converting an incident optical image into an electric signal is arranged. The electric signal output from the solid-state image sensor 20 is input to the video processor 8 via a signal code 21 extending from the side of the connector 19 shown in FIG.

Further, the bending portion 16 of the cover endoscope 88 has a plurality of bending pieces 69 rotatably combined therein. Of the bending pieces 69, 69, ..., One end of a pair of bending operation wires 70, 70 is fixed to the most distal piece, and the other ends are fixed to a chain which will be described later on the operating portion 12 side. A pair of bending operation wires (not shown) are similarly inserted and fixed in the bending pieces 69, 69, ... The bending portion 16 is bent in the up / down and left / right directions.

As shown in FIG. 2, the operation portion 12 has a grip portion 12a on the base end side, and an operation portion main body 12b is connected above the grip portion 12a. Further, the operation section main body 12b of the operation section 12 is provided with an air / water supply control switch 46, a suction control switch 47, and a function switch 48 for photographing and the like. As shown in FIG. 3, a left-handed angle knob 89 is detachably provided on the side surface of the operation section body 12b on an angle shaft 12c protruding from the body 12b.

Further, a right-hand angle knob 90 is detachably attached to an angle shaft described later on the side surface of the grip portion 12a. In particular, the right-hand angle knob 90 is made of a sterilizable material such as polysulfone and modified PPO.

It should be noted that the cover holder 6 shown in FIG. 1 is configured to hold the insertion-portion cover portion 22 by the arm 6a when the insertion-portion cover portion 22 is mounted on the cover endoscope 88. There is. As a result, the endoscope 88 can be held without touching the insertion portion cover portion 22 with hands, which is sanitary. In addition, the operation becomes easy.

FIG. 4 shows a side sectional view of the cover endoscope 88 with the insertion portion cover 22 inserted.

The insert section cover section 22 is for isolating the insert section 14 of the cover endoscope 88 from the external environment. The insertion portion cover portion 22 is formed in an elongated shape, and a mouth portion for fixing the endoscope operation portion (hereinafter, abbreviated as a mouth portion) 22a and a tip forming portion 22b, which are components on the near side, are hard. It is made of a material such as metal or resin.

A space between the mouth 22a of the insert cover 22 and the distal end forming portion 22b is hermetically covered by an insert cover outer skin 22c made of a flexible material. The insertion portion cover outer cover 22c is fitted and connected on the front end side thereof to the edge portion of the outer periphery on the rear end side of the front end forming portion 22b. Further, the insertion portion cover outer skin 22c is similarly connected on the mouth body portion 22a side.

The insertion portion cover outer cover 22c is made of a resin such as polyurethane having excellent chemical resistance and relatively high flexibility.

In addition, the insertion portion cover portion 22 has an endoscope insertion channel 25 into which the insertion portion 14 can be inserted, an air supply conduit 26, a water supply conduit 27, and a suction pipe as channels. A path 28 is provided.

On the proximal end side of the endoscope insertion channel 25, an opening portion 25a for inserting the insertion portion 14 is formed in the mouth portion 22a. The opening 25a of the endoscope insertion channel 25 is adapted to fit the proximal end of the insertion portion 14. The base end portion of the endoscope operation unit 12 may be fitted into the opening 25a. Further, the endoscope insertion channel 25 is closed at the distal end forming portion 22b, and the insertion portion 14 of the cover endoscope 88 is hermetically separated from the external environment.

The air supply conduit 26, the water supply conduit 27, and the suction conduit 28 extend outward from the side portion of the mouth 22a, and their ends are open.

A midway of each of the air supply pipe 26, the water supply pipe 27, and the suction pipe 28 is composed of a suction connection pipe 49, an air connection pipe 50, and a water connection pipe 51. The suction, air supply, and water supply connection pipes 49, 50, 51 are in communication with a conduit assembly connector 52 fitted to the side of the mouth 22a shown in FIG. Further, the suction, air supply, and water supply connection pipes 49, 50, 51 are respectively connected to the suction outer pipe 57, the air supply outer pipe 55, and the water supply outer pipe 56 via the pipe line assembly connector 52. ing. Each of the external pipe lines 55, 56, 57 is connected to an air supply source, a water supply source, a suction source, or the like.

As shown in FIG. 4, a treatment instrument insertion port 34 and an expansion tube mouth 35 are projected from the side of the mouth 22a. The expansion tube mouth 35 has an internal conduit communicating with the endoscope insertion channel 25. An expansion tube 36 connected to the expansion device 10 is detachably connected to the expansion tube mouth 35.

The treatment instrument insertion port 34 projects obliquely rearward in the long axis direction of the insertion portion cover portion 22. The internal conduit of the treatment instrument insertion port 34 is open at the projecting end and communicates with the suction conduit 28 at the other end. That is, the suction conduit 28 also serves as a conduit for the treatment instrument channel on the distal end side thereof. Therefore, the opening 31 is also a treatment tool outlet. Note that reference numeral 39 is a conduit on the rear side of the treatment instrument channel.

Next, the configuration of the bending operation mechanism will be described below. FIG. 5 shows a cross section of the operating portion including the left-hand angle knob 89, the right-hand angle knob 90, and the periphery thereof.

As shown in FIG. 5, the bending operation mechanism of the present embodiment has a left-hand bending operation mechanism 91 and a right-hand operation mechanism 92.

The left-handed bending operation mechanism 91 and the right-handed bending operation mechanism 92 include the left-handed angle knob 89 and the right-handed angle knob 90, respectively, and the bending portion 16 is moved upward (hereinafter referred to as U). The operation of bending in the left (hereinafter referred to as L) / left (hereinafter referred to as L) and right (hereinafter referred to as R) directions is performed.

The left-handed bending operation mechanism 91 and the right-handed operation mechanism 92 are interlocked via two gears to be described later, and the bending piece 69 is moved in accordance with the forward / backward movement of the UD chain 93 or the RL chain 94. , 69, ... can be rotated vertically or horizontally. The other ends of the bending operation wires 70 and 70 are connected to the other ends of the UD chain 93, and the bending portion 16 is bent in the UD direction.

Further, the other ends of the bending operation wire (not shown) are connected to both ends of the RL chain 94 to bend the bending portion 16 in the RL direction.

The left-hand side angle shaft 12c and the right-hand side angle shaft 12f are attached to the inner plate 12e provided in the operation portion 12 with a distance therebetween. The left-hand side angle shaft 12c and the right-hand side angle shaft 12f each have a head projecting from the outer wall of the operating portion 12. Further, holes surrounding the left-hand side angle shaft 12c and the right-hand side angle shaft 12f are formed in the outer wall of the operation portion 12 so as to insert the respective angle knobs 89 and 90.

The left-handed angle knob 89 is externally fitted to the left-handed RL knob 95 and the left-handed RL knob 95. The left-handed RL knob 95 has a fitting portion protruding from the left-hand side angle shaft 12c. It has a UD knob 96 for the left hand.

The left-hand RL knob 95 and the left-hand UD knob 96 are meshed with the left-hand RL gear 98 and the left-hand UD gear 97, respectively, by gears. Further, the left-hand RL gear 98 and the left-hand UD gear 97 are detachably and rotatably combined with the RL chain 94 and the UL chain 93, respectively.

Therefore, the RL chain 94 rotates in response to the rotation of the left-hand RL knob 95. Further, the UD chain 93 is adapted to rotate in response to the rotation of the left-hand UD knob 96.

The right hand bending operation mechanism 92 is also configured in substantially the same manner as the left hand mechanism 91. The right-hand angle knob 90 is a right-hand RL knob 99 having a fitting portion projecting from the right-hand side angle shaft 12f, and a right-hand UD fitting to the fitting portion of the right-hand RL knob 99. And a knob 100.

The right-hand RL knob 99 and the right-hand UD knob 100 are meshed with the right-hand RL gear 101 and the right-hand UD gear 102, respectively, by gears.

The left-handed RL gear 98 and the right-handed RL gear 101 mesh with the gears of the RL gear 103, respectively, and rotate in an interlocking manner.

The left-hand UD gear 97 and the right-hand UD gear 102 mesh with the gears of the UD gear 104, respectively, and are configured to rotate in an interlocking manner.

Therefore, the RL chain 94 and the UD chain 93 respectively rotate in response to the respective rotations of the right-hand RL knob 99 and the right-hand UD knob 100.

With the above-mentioned configuration, the left hand holds the operation section 12 in the unclean area, and the unclean left hand rotates the RL knob 95 for the left hand and the UD knob 96 for the left hand.

The left-hand RL knob 95 transmits a rotational force to the left-hand RL gear 98, and the RL chain 94 is pushed and pulled accordingly. The wire (not shown) is pulled by the RL chain 94, and the bending pieces 69, ... Connected to the other end side of the wire are bent left / right as the wire is pulled. That is, the bending portion 16 is bent left and right.

Similarly, when the UD knob 96 for the left hand is rotationally operated, the rotational force is transmitted to the UD gear 97 for the left hand, the UD chain 93 and the wires 70, 70. The bending portion 16 is bent up / down according to the direction of the rotation operation.

On the other hand, since the right hand grips a clean area such as the insertion portion cover portion 22, when performing a bending operation with the clean hand, the right hand angle knob 90 is used. When the RL knob 99 for the right hand is rotated by the right hand, the RL gear 101 for the right hand rotates, and the RL gear 103 rotates in the direction opposite to this rotation. Further, the left-hand RL gear 98 rotates in the same rotation direction as the right-hand RL gear 101. As the RL chain 94 is pulled along with these rotations, the bending portion 16 bends left / right.

Similarly, with the clean right hand, the UD knob 100 for the right hand is rotated, and this rotational force is transmitted in the order of the UD gear 102 for the right hand, the UD gear 104, and the UD gear 97 for the left hand, and the bending portion 16 is turned up / down. Bend down.

Further, in the above-mentioned configuration, for example, when the left-hand UD knob 96 is rotated to the right and the bending portion 16 is bent downward, if the right-hand UD knob 100 is rotated to the right, the same bending is achieved. The portion 16 also faces downward.

Similarly, when the left-hand RL knob 95 and the right-hand RL knob 99 are rotated in the same direction, the bending portion 16 operates in the same manner.

That is, in the left / right / up / down bending operation, the bending portion 16 is bent in the same bending direction when the left hand angle knob 89 and the right hand angle knob 90 are rotated in the same direction.

The right-hand angle knob 90 may be reused or may be disposable. When the right-hand angle knob 90 is disposable, it is treated as medical waste.

In this embodiment, the same left and right knobs can be operated as needed without holding the right-hand angle knob 90 with the unclean left hand, and a similar bending operation can be performed. And the clean right hand will not get dirty through the knob.

Further, in the present embodiment, it is not necessary to operate the angle knob with only the hand holding the operation portion, and the bending operation can be performed without requiring special skill.

Further, in the present embodiment, since the operation direction and the bending direction of the right-hand angle knob 90 and the left-hand angle knob 89 are the same, the operator can perform the bending operation with either hand. You can operate it without feeling strange.

FIG. 6 is a sectional view showing the structure of a bending operation mechanism according to the second embodiment of the present invention.

The bending operation mechanism shown in FIG. 6 is provided with a cover of an angle knob in addition to the mechanism of the first embodiment. Other configurations and operations similar to those of the first embodiment are designated by the same reference numerals and description and drawings thereof are omitted. Only different configurations will be described below.

In the present embodiment, the cover of the angle knob is provided on the right hand bending operation mechanism 90 A side and is composed of the RL knob cover 106 and the UD knob cover 107.

The RL knob cover 106 covers the front surface and the side peripheral surface of the RL knob 99 for the right hand. Further, the UD knob cover 107 covers from the side circumferential surface of the right-hand UD knob 100 to a position close to the outer wall of the operation portion 12.

The RL knob cover 106 is rotatably engaged with the UD knob cover 107, and the UD knob cover 107 is detachably attached to the right-hand UD knob 100, for example, by a snap fit.

The RL knob cover 106 and the UD knob cover 107 are disposable products.

With the above-described configuration, when performing a left-right bending operation with the right hand, the right-hand RL knob 99 is operated from above the RL knob cover 106. Similarly, when performing a vertical bending operation with the right hand, the right hand UD knob 100 is operated from above the UD knob cover 107.

After use, the RL knob cover 106 can also be removed by removing the UD knob cover 107 from the right-hand UD knob 100.

In this embodiment, since the clean right hand does not become dirty, it is possible to prevent bacteria from entering the patient's body.

In each of the above-mentioned embodiments, the insertion portion is generally handled by the right hand and the operation portion is grasped by the left hand. Therefore, it is described in the embodiments, but the invention is not limited to this. Even if the insertion portion is handled by the left hand and the operation portion is held by the right hand, the same configuration may be used.

The cover endoscope according to the present invention is not limited to the electronic type, and may be an optical fiber endoscope, an ultrasonic endoscope, or the like, and is not particularly limited. Further, the cover attached to the present cover endoscope may or may not have a channel, and may have any structure.

[0082]

[Effect of device]

 INDUSTRIAL APPLICABILITY The present invention has an effect that the hand having the insertion portion covered with the cover can perform the bending operation without touching the place where the other hand in charge of the dirty area touches, and the bending operability can be improved. .

[Submission date] June 11, 1993

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] 0003

[Correction method] Change

[Correction content]

After the endoscope is used in the body cavity of a patient, the endoscope is cleaned and disinfected, but this cleaning and disinfection takes a very long time. Therefore, in recent years, when performing an endoscopic examination, a disposable endoscope cover type endoscope has been proposed in place of the conventional repeatedly used endoscope.

[Procedure Amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0010

[Correction method] Change

[Correction content]

[0010]

[Problems to be solved by the device]

Conventionally, the operation portion of the endoscope, unclean region (Even if a good region as dirty) and was used as re-use (which repeated use), inserting cover portion of the endoscope cover clean zone (dirt It is considered a disposable (disposable) area because it is a difficult area.

[Procedure 3]

[Document name to be amended] Statement

[Name of item to be corrected] 0022

[Correction method] Change

[Correction content]

[0022] The cart 5 peripherals are accommodated as shown in FIG. 1, for example, a light source device 7, video processors 8, the fluid control device 9, channeled endoscope cover dilator (hereinafter, abbreviated as dilator) 10 are stored. A monitor 11 is mounted on the top plate of the cart 5.

[Procedure amendment 4]

[Document name to be amended] Statement

[Name of item to be corrected] 0023

[Correction method] Change

[Correction content]

The light source device 7 supplies illumination light to the cover endoscope 88 of the cover-type endoscope 87. The video processor 8 is connected to an electronic cover endoscope 88, converts an electric signal from the endoscope into a standard video signal, and outputs the standard video signal to the monitor 11. The monitor 11 receives the video signal and displays an endoscopic image.

[Procedure Amendment 5]

[Document name to be amended] Statement

[Correction target item name] 0040

[Correction method] Change

[Correction content]

On the proximal end side of the endoscope insertion channel 25, an opening portion 25a for inserting the insertion portion 14 is formed in the mouth portion 22a. The opening 25a of the endoscope insertion channel 25 is adapted to fit the proximal end of the insertion portion 14. The base end portion of the endoscope operation unit 12 may be fitted into the opening 25a. Further, the endoscope insertion channel 25 is closed in the distal end forming portion 22b, so that the insertion portion 14 of the cover endoscope 88 is airtightly isolated from the external environment.

[Procedure correction 6]

[Document name to be amended] Statement

[Correction target item name] 0073

[Correction method] Change

[Correction content]

In the present embodiment, the cover of the angle knob is provided on the side of the right hand bending operation mechanism 92 A , and includes the RL knob cover 106 and the UD knob cover 107.

[Brief description of drawings]

1 to 5 relate to the first embodiment, and FIG. 1 is an overall external view of an endoscope apparatus to which a cover endoscope is connected.

FIG. 2 is an external view of a cover endoscope.

FIG. 3 is an explanatory view of mounting an angle knob.

FIG. 4 is a side cross-sectional view of the distal end side of the cover type endoscope.

FIG. 5 is a cross-sectional view showing a configuration of a bending operation mechanism.

FIG. 6 is a side sectional view showing a configuration of a bending operation mechanism according to a second embodiment.

[Explanation of symbols]

 86 ... Endoscope device 87 ... Cover-type endoscope 22 ... Insertion part cover part 88 ... Cover endoscope 91 ... Left hand bending operation mechanism 89 ... Left hand angle knob 92 ... Right hand bending operation mechanism 90 ... Right hand Angle knob

Front page continued (72) Inventor Akira Suzuki 2-43-2 Hatagaya, Shibuya-ku, Tokyo Olympus Optical Co., Ltd. (72) Hideo Ito 2-43-2 Hatagaya, Shibuya-ku, Tokyo Olympus Optical Industrial Co., Ltd. (72) Inventor Minoru Yamazaki 2-43-2 Hatagaya, Shibuya-ku, Tokyo Olympus Optical Industry Co., Ltd. (72) Inventor Osamu Mizuta 2-43-2 Hatagaya, Shibuya-ku, Tokyo Olympus Inside Optical Industry Co., Ltd. (72) Inventor Yasuyuki Futaki 2-34-2 Hatagaya, Shibuya-ku, Tokyo Inside Olympus Optical Industry Co., Ltd.

Claims (1)

[Scope of utility model registration request] 1. An insertion section that includes a bendable bending section and is inserted into a subject, and an operation section that is provided with a bending operation mechanism that is connected to the insertion section and that allows bending operation of the bending section. With the endoscope cover endoscope to be used with the endoscope cover covered, the bending operation mechanism includes a right-hand angle knob that is provided in the operation unit and is operated by the right hand, A bending operation mechanism for the right hand that changes the amount of bending of the bending portion according to the operation amount of the right-hand angle knob, and a left-hand operation that is provided separately from the angle knob for the right hand and that is operated by the left hand An endoscope for an endoscope cover, including an angle knob, and a left-handed bending operation mechanism that changes a bending amount of the bending portion according to an operation amount of the left-handed angle knob. .