JP2017023214A - Endoscope system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an endoscope system that makes it possible to smoothly perform observation and treatment without causing interference between an endoscope and a treatment instrument in a limited working space.SOLUTION: An endoscope system 1 comprises: an endoscope 2 including a rigid insertion unit 21 including at least one first imaging device 11 built-in, the first imaging device having a visual field direction crossing the longitudinal axis 21a direction of the insertion unit; a treatment probe 4 including a slender and rigid probe main body 41; and a mounting instrument 7 including a first through hole 71h1 that functions as a movable mounting unit for the insertion unit 21 of the endoscope 2, and a second through hole 71h2 that functions as a probe fixation unit for arranging the probe main body 41 of the treatment probe 4 along the side of the insertion unit 21.SELECTED DRAWING: Figure 3

Description

  The present invention relates to an endoscope system including an endoscope whose insertion portion is rigid and a treatment tool.

In the medical field, the industrial field, and the like, an endoscope having an elongated insertion portion is used.
The viewing direction of the endoscope is a direct-viewing endoscope that is in front of the insertion unit longitudinal axis, a side-viewing endoscope that is to the side of the insertion unit longitudinal axis, and an oblique front with respect to the insertion unit longitudinal axis. There are perspective endoscopes and the like.
And there are a hard type and a soft type in the insertion part inserted into the body or the apparatus.

  Some endoscopes are provided with a treatment instrument channel in the insertion portion. According to the endoscope having the treatment instrument channel, various treatment treatments can be performed with the treatment instrument guided into the body through the treatment instrument channel while observing by inserting the insertion portion into the body.

However, when performing a procedure of cauterizing the affected area in the nasal cavity using a rigid endoscope for otolaryngology, the operator must insert the endoscope and the treatment tool into the nasal cavity separately. . In addition, the surgeon performs treatment by performing the hand operation of the endoscope and the hand operation of the treatment tool in a limited working space.
Specifically, the surgeon displays an endoscopic image of the affected area on the monitor screen of the endoscope system, and while maintaining this state, inserts the treatment instrument into the nasal cavity and observes the endoscopic image. Cauterize the affected area.

And when there are a plurality of affected parts, the surgeon finishes cauterization of one affected part, and then performs an operation to move the endoscope insertion part to display another affected part on the monitor screen. Thus, the treatment tool is inserted into the nasal cavity and the affected part is cauterized while observing the endoscopic image.
That is, the surgeon needs to repeatedly perform an operation of moving the endoscope insertion portion to display the affected portion on the monitor screen and a treatment of inserting the treatment tool into the nasal cavity and cauterizing the affected portion.

  Patent Document 1 discloses an endoscope system in which a treatment instrument guide that supports a treatment instrument in a state of being attached along an outer peripheral surface side of an insertion portion of an endoscope is fixed to the endoscope. ing.

JP 2002-330928 A

  However, since the working space for hand-operating the endoscope and the treatment tool is limited, depending on the position of the affected part, the endoscope and the treatment tool may interfere with each other and it may be difficult to perform the treatment. In such a case, the surgeon changes the posture and secures a new working space to perform cauterization.

  The present invention has been made in view of the above circumstances, and provides an endoscope system capable of performing observation and treatment smoothly without causing an endoscope and a treatment tool to interfere with each other in a limited working space. It is aimed.

  An endoscope system according to an aspect of the present invention includes an endoscope having a rigid insertion portion that includes at least one first imaging unit in which the direction intersecting the longitudinal direction of the insertion portion is a visual field direction, and an elongated shape A therapeutic probe having a rigid probe body, a mounting portion movably attached to the insertion portion of the endoscope, and a probe body of the treatment probe along a side portion of the insertion portion And a mounting tool having a probe fixing portion to be arranged.

  ADVANTAGE OF THE INVENTION According to this invention, the endoscope system which can be operated and operated without interfering an endoscope and a treatment tool within the limited working space is realizable.

The figure explaining the endoscope system containing a rigid endoscope and a treatment tool The figure explaining the endoscope of the integrated state, the treatment tool, and the wearing tool Exploded perspective view for explaining the relationship between the endoscope, the wearing tool, and the treatment tool Cross-sectional view taken along line Y4A-Y4A in FIG. 4A is a cross-sectional view taken along line Y4B-Y4B in FIG. The figure explaining the mounting tool which is a modification of a mounting tool and can be attached by adjusting the fixing force to the insertion portion A view when the distal end surface of the insertion portion is viewed from the direction of arrow Y5A in FIG. Arrow Y5B-Y5B diagram of FIG. 5A The figure explaining the endoscopic image by the endoscope of an assembly The figure explaining the state which displayed two affected part images in consideration of treatment, and the movement of the treated part image after that The figure explaining the movement of the treatment part image after completion of treatment of the 1st affected part The figure explaining the endoscope provided with one imaging device and the endoscope provided with three imaging devices in an insertion part The figure explaining the affected part which the endoscope provided with one imaging device caught, and the affected part which the endoscope provided with three imaging devices caught The figure explaining the endoscope which provided the 1st image pick-up part and the 2nd image pick-up part The figure explaining the endoscope which has the visual field direction which cross | intersects with respect to an insertion part longitudinal axis direction, and the visual field direction different from this visual field direction The figure which shows the endoscopic image of the affected part which the endoscope caught The figure explaining the other structural example which enables operation | movement back and forth to an insertion part longitudinal axis direction, and rotation operation around an insertion part longitudinal axis of a mounting tool FIG. 10A is a cross-sectional view taken along line Y10B-Y10B.

Embodiments of the present invention will be described below with reference to the drawings.
In each drawing used in the following description, the scale of each component may be different in order to make each component large enough to be recognized on the drawing. Further, the present invention is not limited only to the number of components described in these drawings, the shape of the components, the ratio of the sizes of the components, and the relative positional relationship between the components.

The endoscope system will be described with reference to FIG.
The endoscope system 1 includes an endoscope 2, an endoscope observation device 3, a treatment tool 4, a treatment device 5, and a display device 6. Reference numeral 7 is a wearing tool, reference numeral 8 is a nasal cavity, reference numeral 8a is an affected part, and reference numeral 8ai is an endoscopic image of the affected part 8a. The endoscope 2 is an otolaryngological endoscope, and is grasped by an operator's hand and inserted into the nasal cavity as shown by a broken line in FIG.

The endoscope 2 shown in FIG. 1 and FIG. 2 includes a rigid insertion part 21 having a circular outer shape, an elongated cylindrical operation part 22 provided on the proximal end side of the insertion part 21, and the operation part 22 side. And a universal cord 23 extending from the section.
The endoscope 2 includes a first imaging device 11 that constitutes a first imaging unit on the distal end side of the insertion unit 21. The first imaging device 11 includes an observation lens 24, an objective optical system (not shown), an imaging optical system (not shown), an imaging element 15, a circuit board (not shown), a signal line (not shown), and the like. Has been.

  In the first imaging unit, the viewing direction is set in a direction orthogonal to the direction of the insertion portion longitudinal axis 21a. Therefore, the observation lens 24 and the illumination optical system (not shown) are provided at predetermined positions on the side peripheral surface that is the side portion on the distal end side of the insertion portion 21.

  The operation unit 22 also serves as a gripping part, and various operation members such as a freeze switch 22a that generates a freeze signal and a release switch 22b that generates a release signal when taking a picture are disposed on the side of the operation unit 22. ing.

  In the universal cord 23, a light guide fiber bundle (not shown) that transmits illumination light constituting the illumination optical system, a signal line (not shown) extended from the switches 22 a and 22 b, and extended from the first imaging device 11. Signal line etc. are inserted. The base end portion of the universal cord 23 is detachably connected to the endoscope observation apparatus 3 via a connector (not shown).

  The endoscope observation apparatus 3 serves as both a light source device and a camera control unit, and includes a light source 31, a control unit 32 including a control circuit (not shown), and the like. Illumination light emitted from the light source 31 is collected on the base end face of the light guide fiber bundle, and emitted from an illumination lens (not shown) constituting an illumination optical system provided on the distal side of the insertion portion 21. Irradiate the observation site.

  A signal line extending from the switches 22a and 22b, a signal line extending from the first imaging device 11, and the like are connected to the control unit 32. The control unit 32 outputs power and control signals for driving and controlling the image sensor 15. The electrical signal output from the image sensor 15 is transmitted to an image processing circuit (not shown) via the control unit 32 and is generated as a video signal.

The generated video signal is output to the display device 6 via a video cable (not shown), and an endoscopic image 8ai of the observation site captured by the first imaging device 11 is displayed on the screen 6a of the display device 6. The
The freeze signal and release signal output from the switches 22a and 22b are transmitted to the memory control circuit via the control unit 32.

  The treatment instrument 4 is a therapeutic probe, for example, an inert gas plasma coagulation probe (hereinafter referred to as probe 4). The probe 4 is hard and has a probe body 41 having a predetermined diameter and length. The probe main body 41 is disposed along the side portion of the insertion portion 21.

Reference numeral 42 denotes a treatment portion, which is provided on the distal end side of the probe main body 41. The treatment part 42 is a part that outputs a high-frequency current in a hemostatic mode together with argon gas converted into plasma. The treatment portion 42 is disposed and positioned in a distal end positioning member (hereinafter abbreviated as a positioning member) 9 described later.
Reference numeral 43 denotes a flexible cord, and the flexible cord 43 extends from the proximal end side of the probe main body 41. The proximal end portion of the flexible cord 43 is detachably attached to the treatment device 5 via a connector (not shown).

The treatment device 5 is a high-frequency device that generates a plasma arc for biological tissue treatment. For example, a foot switch (not shown) is connected to the treatment device 5. By turning on the foot switch, a high-frequency current is output from the treatment section 42 together with the argon gas converted into plasma.
Although illustration is omitted, the endoscope observation apparatus 3 and the treatment apparatus 5 are electrically connected to each other, and a treatment switch (not shown) is provided in the operation section 22, and the treatment section is operated by hand operation of the treatment switch. A high-frequency current may be output from 42 together with the argon gas converted into plasma.

The mounting tool 7 shown in FIGS. 1 to 3 is a rigid member made of resin or metal, and has an attachment portion 71 and a support portion 72. The attachment portion 71 can be provided with the insertion portion 21 of the endoscope 2, and the probe main body 41 of the treatment instrument 4 can be fixed.
2 is an assembly, and the insertion portion 21 is disposed in a predetermined state on the attachment portion 71 of the mounting tool 7, and the probe main body 41 is fixed in the predetermined state.

  As shown in FIG. 2, the wearing tool 7 can be moved forward and backward with respect to the longitudinal axis direction of the insertion portion 21 with a finger of a hand holding the operation portion 22 of the operator, and around the longitudinal axis of the insertion portion 21. It is comprised so that rotation operation is possible.

  Therefore, for example, the operator performs an operation of retracting the wearing tool 7 as indicated by an arrow Y2A indicated by a broken line and an operation of rotating the wearing tool 7 clockwise as viewed from the operation unit 22 side as indicated by an arrow Y2B indicated by a broken line. . Then, the positioning member 9 moves on the outer peripheral surface of the insertion portion 21, and the arrangement position of the treatment instrument 4 with respect to the insertion portion 21 is changed from the position indicated by the solid line to the position indicated by the broken line.

  As shown in FIG. 2 to FIG. 4B, a circumferential groove 73 is provided on the outer peripheral surface of the mounting portion 71. In the circumferential groove 73, for example, an index finger or the like of a hand holding the operation unit 22 can be arranged. Reference numeral 74 denotes a non-slip, and is configured by providing a plurality of uneven portions in the circumferential direction.

The attachment portion 71 is provided with a first through hole 71h1 and a second through hole 71h2. The central axis 71a1 of the first through hole 71h1 and the central axis 71a2 of the second through hole 71h2 are parallel.
The first through hole 71h1 is an insertion portion insertion hole, and the insertion portion 21 is inserted as shown by a one-dot chain line Y3A in FIG. Therefore, the first through hole 71h1 and the outer diameter of the insertion portion 21 are set to a predetermined fit.

The first through hole 71h1 shown in FIGS. 4A and 4B functions as a mounting portion. For this reason, the insertion portion mounting member 75A is fixed to the first recess 75c1, for example, by bonding, for example, on the inner surface of the first through hole 71h1, for example.
The insertion portion mounting member 75A is an annular elastic member having a predetermined elastic force, and the inner diameter of the inner hole 75h is smaller than the outer diameter of the insertion portion 21.

  The insertion portion mounting member 75A is provided with a plurality of pressing portions 75k that can be elastically deformed by forming a plurality of slits 75s. The inner peripheral surface of the pressing portion 75k is in close contact with the outer peripheral surface of the insertion portion 21 that has passed through the inner hole 75h of the insertion portion mounting member 75A, and is pressed and arranged by elastic force. As a result, the user can place the wearing tool 7 at a desired position with respect to the longitudinal axis direction with respect to the insertion portion 21.

Then, for example, when the surgeon applies a force larger than this elastic force to the mounting tool 7, the mounting tool 7 moves forward and backward in the insertion section axial direction with respect to the insertion section 21, or rotates around the insertion section axis. Move.
The arrangement position of the insertion portion mounting member 75A is not limited to the inner surface on the distal end side, and may be disposed on the inner surface on the proximal end side, or on both the inner surface on the distal end side and the inner surface on the proximal end side.
The second through hole 71h2 is a probe main body insertion hole, and the flexible cord 43 and the probe main body 41 are inserted therethrough as indicated by a one-dot chain line Y3B in FIG.

The second through hole 71h2 shown in FIGS. 4A and 4B functions as a probe fixing portion. Therefore, the probe fixing member 75B is fixed to the second recess 75c2 by, for example, adhesion on the inner surface on the proximal end side of the second through hole 71h2.
The probe fixing member 75B is an annular elastic member that is substantially the same as the insertion portion mounting member 75A having a predetermined elastic force. The inner diameter of the inner hole 75h2 is smaller than the outer diameter of the probe main body 41. is there.

Similar to the insertion portion mounting member 75A, the probe fixing member 75B is provided with a plurality of pressing portions 75k that are formed with a plurality of slits 75s and can be elastically deformed. The inner peripheral surface of the pressing portion 75k is in close contact with the outer peripheral surface of the probe main body 41 that has passed through the inner hole 75h2 of the probe fixing member 75B and is pressed and arranged by an elastic force. As a result, the probe main body 41 is integrally fixed to a desired position with respect to the mounting tool 7.
The arrangement position of the probe fixing member 75B is not limited to the proximal inner surface, and may be disposed on the distal inner surface or both the proximal inner surface and the distal inner surface.

As shown in FIG. 4C, an O-ring placement hole for placing an O-ring 77 as a third recess on the inner surface of the base end side instead of providing the first recess 75c1 on the inner peripheral surface of the first through hole 71h1. 76 may be provided.
The inner diameter of the O-ring arrangement hole 76 and the outer diameter of the O-ring 77 are substantially the same diameter. The inner diameter of the inner hole 77 h of the O-ring 77 is larger than the outer diameter of the insertion portion 21 in advance. An internal thread is formed on the inner peripheral surface of the O-ring arrangement hole 76.

  Reference numeral 78 denotes a fastening member. The tightening member 78 has a small diameter portion 78s and a large diameter portion 78b, and a male screw is provided on the outer peripheral surface of the small diameter portion 78s. The male screw of the small diameter portion 78 s is screwed into the female screw of the O-ring arrangement hole 76. The inner hole 78 h of the tightening member 78 has a larger diameter than the outer diameter of the insertion portion 21.

The O-ring 77 arranged in the O-ring arrangement hole 76 is formed by screwing the male screw of the tightening member 78 into the female screw of the O-ring arrangement hole 76, so that the small diameter portion 78 s of the tightening member 78 is formed. The distal end surface is gradually crushed by abutting against the O-ring 77, and the inner diameter of the inner hole 77 h becomes smaller than the outer diameter of the insertion portion 21, and the mounting tool 7 is fixed to the insertion portion 21.
According to this configuration, the fixing force with respect to the insertion portion 21 of the mounting tool 7 can be adjusted by appropriately setting the screwing state of the fastening member 78 to the O-ring arrangement hole 76.

  A groove 72 a is formed in the support portion 72. The inner diameter of the groove 72a is the same as the inner diameter of the second through hole 71h2. Therefore, the probe main body 41 inserted through the second through hole 71h2 is supported by the inner surface of the second through hole 71h2 and the inner surface of the groove 72a of the support portion 72 projecting toward the distal end surface side of the mounting portion 71. Arranged along the side of the portion 21.

  The positioning member 9 shown in FIGS. 3, 5A, and 5B is an insulating member and is made of, for example, hard resin. The positioning member 9 is provided with a straight hole 9b formed along the longitudinal axis 9a with an opening at the base end surface, and an inclined hole 9c having an opening at the distal end surface side and intersecting the longitudinal axis 9a. It has been. The inclined hole 9c and the straight hole 9b communicate with each other at the center.

  As shown by the arrow 3 </ b> C in FIG. 3, the treatment portion 42 and the probe main body 41 are disposed on the positioning member 9. The treatment portion 42 passes through the straight hole 9b and is disposed in the inclined hole 9c, and the distal end portion of the probe main body 41 is disposed in the straight hole 9b. The treatment portion 42 is set so as to protrude a predetermined length from the distal end side of the positioning member 9. Thereafter, the probe main body 41 is fixed by bonding in the straight hole 9b, and the treatment portion 42 is fixed by bonding in the inclined hole 9c.

  Further, four contact portions 9 d that contact the outer peripheral surface of the insertion portion 21 are provided on the upper surface 9 u of the positioning member 9. The upper surface 9 u is a curved surface that faces the outer peripheral surface of the insertion portion 21. The contact portion 9d is a hemispherical portion protruding from the four corners of the upper surface 9u, and is configured to make point contact with the outer peripheral surface of the insertion portion 21.

  Note that the flexible cord 43 and the probe main body 41 are inserted into the second through hole 71h2 as indicated by a one-dot chain line Y3B in FIG. However, after the treatment portion 42 and the probe main body 41 are inserted into the second through hole 71h2, the treatment portion 42 and the probe main body 41 may be fixed to the positioning member 9.

Here, the operation of the assembly 10 will be described.
The operator prepares the assembly 10 when inserting into the nasal cavity and cauterizing the affected part. Then, the insertion portion 21 of the endoscope 2 is inserted into the nasal cavity 8 for observation. At this time, as shown in FIG. 6A, the mucous membrane of the nasal cavity 8 and the endoscopic images 9i and 42i of the positioning member 9 and the treatment unit 42 are displayed on the screen 6a. As shown, for example, two affected part images 8bi and 8ci that are affected parts that need to be cauterized are displayed on the screen 6a in consideration of treatment.

Here, the surgeon performs an operation of moving the wearing tool 7 forward with a finger of a hand holding the operation unit 22 while observing the screen 6a. Then, since the probe main body 41 is fixed to the mounting tool 7, the probe main body 41 advances with respect to the insertion portion 21.
Therefore, the treatment part image 42i moves toward the first affected part image 8bi as indicated by the two-dot chain line arrow. When it is determined that the surgeon is placed in the predetermined state indicated by the broken line, the operator removes the finger from the wearing tool 7. Reference numeral 41 i in FIG. 6B is an endoscopic image of the probe main body 41.
When the surgeon turns on the foot switch, a high-frequency current is output from the treatment section 42 to the affected area 8b (not shown) together with the argon gas converted into plasma, and cauterization is started. The surgeon performs cauterization while observing the screen 6a.

After the treatment of the first affected part 8b is completed, the surgeon performs the operation of retracting the wearing tool 7 with the finger of the hand holding the operation unit 22 and the operation of rotating the mounting tool 7 simultaneously or sequentially. As a result, the probe main body 41 moves backward with respect to the insertion portion 21 and is rotated around the axis of the insertion portion 21 so that the treatment portion image 42i is second as shown by the two-dot chain line arrow as shown in FIG. 6C. Confront the affected part image 8ci. Thereafter, the surgeon performs cauterization as described above. Reference numeral 8be denotes a treated first affected part.
After the cauterization treatment of the second affected part 8c (not shown) is completed, the surgeon removes the insertion part 21 from the nasal cavity and ends the treatment.

As described above, the mounting portion 71 of the mounting tool 7 is provided with the insertion portion insertion hole that functions as the mounting portion and the probe main body insertion hole that functions as the probe fixing portion. Then, the mounting body 7 is fixed to the probe fixing portion, and the assembly 10 is configured by mounting the mounting tool 7 on the insertion portion 21.
As a result, the surgeon can operate the probe 4 fixed to the mounting tool 7 by operating the mounting tool 7 with one hand holding the operation unit 22 of the endoscope 2. In other words, by configuring the assembly 10, the surgeon can operate the endoscope 2 and the probe 4 with one hand in a limited working space.

  Therefore, the surgeon can perform the operation without causing the insertion unit 21 and the probe main body 41 to interfere with each other, and can change the position of the treatment unit 22 in the endoscopic image without changing the endoscopic image. The position can be changed as appropriate.

When the operator discovers multiple affected areas or a wide range of affected areas that cannot be cauterized at a time by endoscopic observation, multiple images of the affected areas are displayed on the endoscope screen in consideration of the treatment. Let As a result, without changing the endoscopic image displayed on the screen, the treatment section can be moved forward, backward, clockwise, or counterclockwise to face the desired affected area.
The surgeon can smoothly and reliably perform the treatment by operating the endoscope and the treatment tool with one hand in a limited working space.

In the above-described embodiment, the first imaging unit provided on the distal end side of the insertion unit 21 is an electronic endoscope including the imaging element 15 as an imaging optical system. However, the first imaging unit may be an optical endoscope that provides a relay lens or the like in the insertion unit and observes the eyepiece unit.
And when using an optical endoscope, it is good to connect a camera apparatus to an eyepiece part and to display an endoscopic image on the screen 6a of the display apparatus 6. FIG.

  In the above-described embodiment, the endoscope 2 includes one first imaging device 11 as a first imaging unit on the distal end side of the insertion unit 21. However, a plurality of first imaging units, for example, in addition to the first imaging device 11, the second imaging device 12 and the third imaging device 13 are provided on the distal end side of the insertion portion 21 of the endoscope 2 as shown in the lower diagram of FIG. 7A. May be provided.

  The imaging devices 12 and 13 include observation lenses 25 and 26, an objective optical system (not shown), an imaging optical system (not shown), imaging elements 16 and 17, a circuit board (not shown), a signal line (not shown), and the like. It is comprised.

  In this configuration, the endoscope observation apparatus 3 generates the single video signal by synthesizing the electrical signals output from the imaging elements 15, 16, and 17 of the imaging apparatuses 11, 12, and 13. An image processing circuit (not shown) is provided.

  In this manner, the plurality of imaging devices 11, 12, and 13 that are the first imaging units are arranged in the insertion unit 21. As a result, an endoscope having one imaging device 11 shown in the upper part of FIG. 6A displays an endoscopic image that captures the two affected part images 8bi and 8bi as shown in the left figure of FIG. 7B. On the other hand, in the endoscope of the present embodiment having a plurality of imaging devices 11, 12, and 13, as shown in the right diagram of FIG. 7B, an endoscope image having a wide range in which three affected part images 8bi, 8ci, and 8di are captured. Can be obtained.

  As a result, it is possible to more smoothly and reliably perform the treatment of the affected area having a wide range using the endoscope and the treatment tool in the limited working space.

As shown in FIG. 8, on the distal end surface of the insertion portion 21 of the endoscope 2 in which a plurality of imaging devices 11, 12, 13 as the first imaging portion shown in the lower diagram of FIG. You may make it provide the 2nd imaging part from which a visual field direction differs from a 1st imaging part, ie, a visual field direction is ahead of an insertion part longitudinal axis.
According to this configuration, since the front of the longitudinal axis of the insertion portion can be observed by the second imaging unit, the insertability of the insertion portion 21 can be greatly improved.

  The second imaging unit is a direct-view imaging device 28, and includes an observation lens 28a, an objective optical system (not shown), an imaging optical system (not shown), an imaging element 28b, a circuit board (not shown), and a signal line (not shown). (Not shown) and the like. Reference numeral 28c denotes an illumination optical system.

  Further, in this configuration, the endoscope observation apparatus 3 synthesizes the electrical signals output from the imaging elements 15, 16, and 17 of the imaging apparatuses 11, 12, and 13 to generate and output one video signal. In addition to a first image processing circuit (not shown), a second image processing circuit that generates and outputs a video signal from an electrical signal output from the direct-view imaging device 28 is provided.

  The endoscope observation apparatus 3 is provided with a display circuit that displays the video signal generated by the first image processing circuit and the video signal generated by the second image processing circuit simultaneously or separately on the screen 6a. ing.

  Further, instead of providing an imaging device for observing a direction orthogonal to the insertion portion longitudinal axis 21a on the side portion of the insertion portion 21, as shown in FIG. 9A, an ultra-wide-angle imaging device is provided on the distal end surface of the insertion portion 21. 29 may be provided. The visual field direction of the super wide-angle imaging device 29 is a direction that intersects the front of the insertion portion longitudinal axis and the insertion portion longitudinal axis, and includes the rear of the distal end surface of the insertion portion 21.

  According to this configuration, the entire circumference direction in the lumen is observed, and for example, in the state where the affected part 8e and the affected part 8f are captured, the wearing tool 7 is operated and the treatment is performed without rotating the insertion part 21. The treatment can be performed by moving the portion 42 forward and backward and rotationally to the insertion portion 21.

  Note that the imaging devices 11, 12, and 13 described above may be arranged in the circumferential direction so that observation in the entire circumferential direction in the lumen can be performed.

  In the embodiment described above, the position of the treatment portion 42 relative to the insertion portion 21 is changed by operating the attachment tool 7 to move back and forth in the direction of the insertion portion longitudinal axis 21a or turning about the insertion portion longitudinal axis. .

  However, as shown in FIGS. 10A and 10B, the mounting tool operating tool 80 is fixed to the operating unit 22, and a pair of disk members 81 provided rotatably on the mounting tool operating tool 80 are rotated. The mounting tool 7 may be moved back and forth or rotated.

  The wearing tool operating tool 80 includes an operating tool main body 83 and a lid member 84. One end portion of the operation tool main body 83 is integrally attached to the operation portion 22 via an attachment tool (not shown) such as a rubber band or a hook-and-loop fastener.

  The operation tool main body 83 is provided with two disc arrangement holes 83h1, 83h2 and a shaft hole 83h3. A disc member 81 in which the shaft member 82 is integrated is provided in the disc arrangement holes 83h1 and 83h2.

  The disc arrangement holes 83 h 1 and 83 h 2 in which the disc member 81 is arranged are closed by the lid member 84. Reference numeral 84h is an opening for projecting the disk member 81 to the outside.

  The disc member 81 is, for example, an elastic member, and is disposed in close contact with the outer peripheral surface of the wearing tool 7 by an elastic force. One of the disk members 81 (see FIG. 10A) is an advancing / retreating disk, and the other (the left disk in FIG. 10B) is a rotating disk.

The mounting tool 7 moves forward by rotating one disk member 81 in the direction of the arrow Y10C in FIG. 10A, and moves backward by rotating it in the opposite direction.
On the other hand, when the other disk member 81 is rotated in the direction of the arrow Y10D in FIG. 10B, the mounting tool 7 is rotated in the clockwise direction in the drawing, and is rotated in the counterclockwise direction by being rotated in the reverse direction.

  In this way, by attaching the mounting tool operating tool 80 to the operation unit 22 and appropriately operating the two disk members 81, the mounting tool 7 is moved forward and backward in the direction of the insertion unit longitudinal axis 21a, or the length of the insertion unit is long. The position of the treatment portion 42 relative to the insertion portion 21 can be changed by rotating around the axis.

  Instead of providing two disk members 81, one spherical member (not shown) may be provided rotatably. As a result, by rotating one spherical member in a desired direction, the wearing tool 7 is moved forward and backward in the direction of the insertion portion longitudinal axis 21a, or rotated around the insertion portion longitudinal axis, thereby inserting the insertion portion of the treatment portion 42. The position with respect to 21 can be changed.

  The present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the spirit of the invention.

DESCRIPTION OF SYMBOLS 1 ... Endoscope system 2 ... Endoscope 3 ... Endoscope observation apparatus 4 ... Treatment tool (probe)
DESCRIPTION OF SYMBOLS 5 ... Treatment apparatus 6 ... Display apparatus 6a ... Screen 7 ... Wearing tool 8 ... Nasal cavity 8a ... Affected part 9 ... Positioning member 9a ... Longitudinal axis 9b ... Straight hole 9c ... Inclined hole
9d: Contact portion 9u ... Upper surface 10 ... Assembly 11 ... First imaging device
DESCRIPTION OF SYMBOLS 12 ... 2nd imaging device 13 ... 3rd imaging device 15, 16, 17 ... Image sensor
21 ... Insertion part 21a ... Insertion part longitudinal axis 22 ... Operation part
22a ... Freeze switch 22b ... Release switch 23 ... Universal cords 24, 25, 26 ... Observation lens 28 ... Direct-view imaging device 28a ... Observation lens
28b ... Imaging device 29 ... Super wide-angle imaging device 31 ... Light source 32 ... Control unit
DESCRIPTION OF SYMBOLS 41 ... Probe main body 42 ... Treatment part 43 ... Flexible cord 71 ... Attachment part
71h1 ... 1st through-hole 71h2 ... 2nd through-hole 72 ... Support part 72a ... Groove
73 ... Circumferential groove 74 ... Anti-slip 75A ... Inserting portion mounting member 75B ... Probe fixing member 75c1 ... First concave portion 75c2 ... Second concave portion 75h ... Inner hole 75k ... Holding portion
75s ... Slit 76 ... O-ring arrangement hole 77 ... O-ring 77h ... Inner hole
78 ... Fastening member 78b ... Large diameter part 78h ... Inner hole 78s ... Small diameter part 80 ... Mounting tool operating tool 81 ... Disc member 82 ... Shaft member 83 ... Operating tool body 83h1, 83h2 ... Disc mounting hole 83h3 ... Shaft Hole 84 ... Lid member 84h ... Opening

Claims (6)

An endoscope having a rigid insertion portion including at least one first imaging unit in which a direction intersecting the longitudinal axis direction of the insertion unit is a visual field direction;
A therapeutic probe having an elongated and rigid probe body;
A mounting part that is movably mounted on the insertion part of the endoscope, and a mounting tool that has a probe fixing part that arranges the probe main body of the therapeutic probe along the side part of the insertion part;
An endoscope system comprising:   The endoscope system according to claim 1, wherein a plurality of the first imaging units are provided in the insertion unit of the endoscope.   The endoscope system according to claim 1, wherein the insertion unit of the endoscope includes a second imaging unit having a visual field direction different from that of the first imaging unit.   The endoscope system according to claim 2, wherein a plurality of the first imaging units are provided in a circumferential direction of the endoscope insertion unit.   The endoscope system according to claim 1, wherein the wearing tool is movable in the longitudinal axis direction of the insertion portion of the endoscope and around the longitudinal axis of the insertion portion. The mounting tool includes a through hole that functions as a mounting portion,
The endoscope system according to claim 5, further comprising an annular elastic member that is pressed and arranged on the outer peripheral surface of the insertion portion by an elastic force in the through hole.

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