JP2018038733A - Treatment instrument erection device and endoscope - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a treatment instrument erection device and an endoscope having an erection stand and an operation wire excellent in the washability and disinfection property.SOLUTION: The treatment instrument erection device is inserted/withdrawn through a channel of an endoscope body, comprising: a conduit body having a proximal end and a distal end and including a treatment instrument channel for inserting/withdrawing a treatment instrument and a wire channel for inserting/withdrawing an operation wire; an operation wire inserted/withdrawn through the wire channel; an erection operating part provided on the proximal end side of the conduit body and connected to the proximal end side of the operation wire; and an erection mechanism provided on the distal end side of the conduit body and connected to the distal end side of the operation wire. Pushing or drawing the operation wire by the erection operating part causes the erection mechanism to move between a falling position and an erecting position, thereby changing the direction of the treatment instrument led to the distal end side of the treatment instrument channel.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a treatment instrument erecting device including an upright and an endoscope.

  In an endoscope, various treatment tools are introduced from a treatment tool introduction port provided in an operation unit, and the treatment tool is led out from a treatment tool outlet port opened at a distal end portion of an insertion unit and used for treatment. ing. For example, a treatment tool such as a guide wire or a contrast tube is used in a duodenoscope. In an ultrasonic endoscope, a treatment tool such as a puncture needle is used. In other direct-viewing mirrors and perspective mirrors, treatment tools such as forceps or snare are used. Such a treatment tool needs to change the derivation direction at the distal end portion in order to treat a desired position in the subject. For this reason, the stand part is provided with the stand which changes the derivation | leading-out direction of a treatment tool. Further, the endoscope is provided with a treatment instrument erecting mechanism that displaces the posture of the upright table between the erecting position and the lying position.

  As a treatment instrument stand-up mechanism, a wire pulling type (open type) mechanism in which the tip of an operation wire is directly attached to a stand is known. In this mechanism, the base end of the operation wire is connected to an operation lever provided in the operation section, and the operation wire is pushed and pulled by the operation lever, so that the stand is rotated around the rotation axis, and the standing position and the lying position are lowered. The posture of the stand is changed between the positions.

  Each time an endoscope is used for various examinations and treatments, it is necessary to perform a cleaning / disinfecting process using a cleaning solution or a disinfecting solution. Proposals have been made to reliably clean an endoscope having a treatment instrument standing mechanism.

  Patent Document 1 discloses that a stand, an operation wire, and a tightly wound coil are attached to and detached from an endoscope.

  Patent Document 2 discloses that the tip cap, the upright stand, and the operation wire are attached to and detached from the endoscope.

  Patent Document 3 discloses that a brush is provided in the insertion channel of the operation wire for cleaning.

JP-A-56-8030 JP-A-6-315458 JP-A-6-315460

  However, in Patent Documents 1 and 2, since the endoscope stand is small and the operation wire is thin, the attaching / detaching operation becomes complicated. Further, in Patent Document 3, since the operation wire is brushed when being removed from the channel, the operation wire is not sufficiently cleaned, and the stand is also required to be cleaned.

  The present invention has been made in view of such circumstances, and an object of the present invention is to provide a treatment instrument stand device and an endoscope excellent in cleaning performance and disinfection of an upright stand and an operation wire.

  A treatment instrument erecting apparatus according to a first aspect is a treatment instrument erecting apparatus that is inserted into and removed from a channel of an endoscope body, and has a distal end and a proximal end, and a treatment instrument channel through which the treatment instrument can be inserted and an operation A conduit main body comprising a wire channel through which a wire can be inserted, an operation wire inserted through the wire channel, a standing operation portion provided on the proximal end side of the conduit main body and connected to the proximal end side of the operation wire; A standing mechanism that is provided on the distal end side of the pipe body and to which the distal end side of the operation wire is connected, and operates the operation wire by the standing operation portion, and pushes and pulls the standing mechanism to the lying position and the standing position. And the direction of the treatment instrument led to the distal end side of the treatment instrument channel is changed.

  In the treatment instrument erecting apparatus according to the second aspect, the conduit main body is formed of a multi-lumen tube.

  The treatment instrument erecting apparatus according to the third aspect includes a base on the proximal end side of the conduit main body and capable of attaching a forceps plug to the introduction port of the treatment instrument channel.

  In the treatment instrument erecting apparatus according to the fourth aspect, a forceps plug is provided on the proximal end side of the conduit body.

  In the treatment instrument erecting apparatus according to the fifth aspect, the erecting mechanism is an erecting base attached to the pipe body.

  In the treatment instrument erecting apparatus according to the sixth aspect, an elastic member for urging the erecting base in the direction of the lying down position is provided on the distal end side of the pipe body.

  In the treatment instrument erecting apparatus according to the seventh aspect, the erecting mechanism is an erecting portion constituted by a part of the distal end side of the pipe body, and the erecting portion is provided at the base end of the heel shape portion and the heel shape portion. It is comprised by the notch part provided.

  In the treatment instrument erecting apparatus according to the eighth aspect, a branch conduit that branches the treatment instrument channel of the conduit body is provided on the side of the standing operation section.

  In the treatment instrument erecting apparatus according to the ninth aspect, the pipe body is constituted by a tube around which a close coil is wound, or a blade tube.

  An endoscope according to a tenth aspect includes the above-described treatment instrument erecting device, an insertion portion having a distal end and a base end, an insertion channel provided in the insertion portion and through which the treatment instrument erecting device is inserted, and the insertion portion An operation portion provided with an introduction port through which the treatment instrument standing device is introduced, and a distal end portion main body provided with an observation window provided on the distal end side of the insertion portion. An endoscope main body.

  The endoscope which concerns on an 11th aspect has a front-end | tip cap attached to a front-end | tip part main body.

  The endoscope which concerns on a 12th aspect WHEREIN: The 1st engagement part provided in the front-end | tip part main body or the front-end | tip cap, and the 2nd engagement part provided in the outer periphery of the pipe line main body of a treatment tool standing apparatus. And restricting the movement of the erection mechanism of the treatment instrument erecting device by engaging the first engagement part and the second engagement part.

  In the endoscope according to the thirteenth aspect, a switching mechanism for switching between rotation and fixation of the conduit main body of the treatment instrument stand-up apparatus is provided in the conduit main body of the treatment instrument stand-up apparatus and the operation unit of the endoscope main body.

  In the endoscope according to the fourteenth aspect, the erection operation unit of the treatment instrument erecting device includes a rotation operation unit and a cam mechanism that converts the rotation of the rotation operation unit into the push / pull direction of the operation wire of the treatment instrument erecting device. .

  In the endoscope according to the fifteenth aspect, the erection operation part of the treatment instrument erecting apparatus includes a lever provided in an operation part of the endoscope main body and capable of pushing and pulling the operation wire of the treatment instrument erection apparatus.

  The endoscope which concerns on a 16th aspect WHEREIN: The standing operation part of a treatment tool standing apparatus is a cylindrical member which has a finger-hanging part, the protrusion extended outside, an operation wire connected to a cylindrical member, and an endoscope main body And a ring member having a groove in which the projection of the cylindrical member can slide and a recess for fixing the projection of the cylindrical member.

  The endoscope according to a seventeenth aspect includes a switching valve that switches an open / close state between a branch conduit provided in the treatment instrument erecting device and a suction conduit connected to the suction device.

  According to the treatment instrument stand and the endoscope of the present invention, the stand and the operation wire are excellent in cleanability, can be cleaned reliably, and are excellent in disinfection.

It is explanatory drawing which shows the whole structure of a treatment tool standing apparatus. It is an enlarged view of the front end side of a treatment tool standing device. It is an enlarged view of the front end side of a treatment tool standing apparatus provided with another standing mechanism. It is a schematic block diagram of an endoscope. It is an assembly perspective view which shows the structure of the front-end | tip part of an insertion part. It is the schematic of the structure of the switching mechanism which switches rotation and fixation of a pipe line main body. It is the schematic of the structure of another switching mechanism. It is the schematic of the structure of another switching mechanism. It is the schematic which shows the structure of a standing operation part. It is the schematic which shows the structure of another standing operation part. It is an exploded view of a standing operation part. It is the schematic which shows the structure of another standing operation part. It is an exploded view of another standing operation part. It is the schematic which shows the structure of another standing operation part. It is the schematic which shows the structure of the suction mechanism of an endoscope. It is the schematic which shows the structure of another suction mechanism of an endoscope. It is a schematic block diagram inside the endoscope main body shown by FIG. It is the schematic which shows the structure of another suction mechanism of an endoscope. It is a schematic block diagram inside the endoscope main body shown by FIG. It is a schematic block diagram of the endoscope of another embodiment.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. The present invention is illustrated by the following preferred embodiments. Changes can be made by many techniques without departing from the scope of the present invention, and other embodiments than the present embodiment can be utilized. Accordingly, all modifications within the scope of the present invention are included in the claims.

  Hereinafter, an endoscope according to an embodiment will be described with reference to the accompanying drawings. FIG. 1 is a diagram illustrating an overall configuration of a treatment instrument standing device.

[First Embodiment]
The treatment instrument erecting device 10 includes a pipe main body 12, an erecting operation unit 14 provided on the proximal end side of the pipe main body 12, and an upright stand 16 provided on the distal end side of the pipe main body 12 as an erecting mechanism. I have.

  The pipe body 12 includes a treatment instrument channel 12A through which a treatment instrument can be inserted and a wire channel 12B through which an operation wire 18 can be inserted.

  In this embodiment, it is preferable that the pipe main body 12 is comprised with a multi-lumen tube. A multi-lumen tube is a tube having a hollow portion that forms two or more holes in one tube, and is made of, for example, urethane resin, nylon resin, fluorine resin, or the like. However, it is not limited to these resins. By configuring the conduit body 12 with a multi-lumen tube, the treatment instrument channel 12A and the wire channel 12B can be formed in the conduit body 12.

  When the pipe body 12 is viewed from the outlet side of the treatment instrument channel 12A and the wire channel 12B, the outer periphery of the small lumen constituting the wire channel 12B and the outer periphery of the large lumen constituting the treatment instrument channel 12A are continuous. A circle may be formed. Moreover, the small lumen which comprises the wire channel 12B can be made into the shape which protrudes from the big lumen which comprises the treatment tool channel 12A like a hook shape.

  It is preferable that the conduit main body 12 is constituted by a tube having a close contact coil wound around the outer periphery or a blade tube. The durability of the pipe body 12 can be improved. The close contact coil refers to a long coil wound in close contact. The blade tube is a tube in which a mesh-like sleeve braided with a wire made of a metal such as thin stainless steel or a synthetic resin is embedded.

  Instead of the multi-lumen tube, a configuration in which a plurality of lumen tubes are aligned in the longitudinal direction and the plurality of lumen tubes are fixed can be applied as the pipe body 12.

  The operation wire 18 is inserted into the wire channel 12 </ b> B, and the proximal end side of the operation wire 18 is connected to the standing operation unit 14. Further, the distal end side of the operation wire 18 is connected to an upright stand 16 attached to the distal end side of the conduit main body 12.

  The operation wire 18 is pushed and pulled by the standing operation unit 14. By this push-pull operation, the upright stand 16 as an upright mechanism can be moved (rotated) between the lying position and the upright position.

  The conduit body 12 is preferably provided with a cleaning hole 12C communicating with the wire channel 12B. A cleaning liquid or a disinfecting liquid can be injected from the cleaning hole 12C. Moreover, the gas in EOG (Ethylene Oxide Gas) sterilization or the water vapor | steam in autoclave sterilization can be flowed in from the washing | cleaning hole 12C. Therefore, the inside of the operation wire 18 and the wire channel 12B can be cleaned and disinfected or sterilized.

  A treatment instrument (not shown) is inserted into the treatment instrument channel 12A of the pipe body 12, and the treatment instrument is led out from the distal end side of the treatment instrument channel 12A. The direction of the derived treatment instrument can be changed by an upright stand 16 that is an upright mechanism.

  A support body 20 is provided on the distal end side of the pipe body 12. The stand 16 is fixed to the support 20 through a shaft 22 so as to be freely rotatable. By the operation of pushing and pulling the operation wire 18, the stand 16 can be moved by rotating between the standing position and the standing position around the shaft portion 22. The operation of pushing and pulling the operation wire 18 by the standing operation unit 14 will be described later.

  In the treatment instrument erecting apparatus 10 of the present embodiment, it is preferable that a forceps base 24 to which a forceps plug 26 can be attached is provided on the proximal end side of the conduit main body 12 and at the introduction port of the treatment instrument channel 12A. The forceps base 24 has, for example, an internal conduit that leads to the treatment instrument channel 12A. A part of the forceps base 24 is fixed inside the introduction port. The forceps base 24 includes a flange (not shown) protruding from the introduction port of the treatment instrument channel 12A.

  A forceps plug 26 is preferably attached to the introduction port of the treatment instrument channel 12 </ b> A via a forceps base 24. The forceps plug 26 is fixed to, for example, a flange protruding from the introduction port of the forceps base 24.

  The forceps plug 26 can prevent blood that flows back from the body of the subject, internal dirt, and physiological saline for internal cleaning from leaking out through the treatment instrument channel 12A. The forceps plug 26 is preferably a disposable type that is sterilized and disposable after use in order to prevent infection of a subject or an operator.

  FIG. 2 is an enlarged view of the distal end side of the treatment instrument erecting device 10. As shown in FIG. 2, it is preferable to provide a torsion coil spring 28 as an elastic member on the stand 16. One arm 28 </ b> A of the torsion coil spring 28 is attached to the support 20, and the other arm 28 </ b> B is attached to the stand 16. By the arm 28B, the upright stand 16 is urged in the direction of the lying down position.

  The upright 16 can move the upright 16 to the upright position relatively easily by pulling the operation wire 18. On the other hand, when the operation wire 18 is pushed, it may be difficult to move the stand 16 to the lying position.

  In the present embodiment, the torsion coil spring 28 is configured to assist the pushing operation of the stand 16 by the operation wire 18. It is possible to reliably move the upright 16 to the lodging position.

  Next, a stand-up mechanism different from the stand 16 will be described. FIG. 3 is an enlarged view of the distal end side of the treatment instrument erecting apparatus including another erecting mechanism. As shown in FIG. 3, in the present embodiment, the upright portion 30 is provided as an upright mechanism by cutting the distal end side of the pipe body 12. The standing portion 30 is formed by cutting the pipe main body 12 in parallel to the axial direction of the pipe main body 12 and perpendicular to the axial direction of the pipe main body 12. The standing portion 30 has a configuration in which a part of the distal end side of the pipe body 12 is removed. The remaining part of the pipe main body 12 forms a hook-shaped portion 30A. The base end of the bowl-shaped part 30A is cut, and a notch 30B is formed at the base end of the bowl-shaped part 30A. The operation wire 18 moves the saddle-shaped portion 30A between the lying position and the standing position. Since the notch 30B is provided at the base end of the hook-shaped part 30A, the hook-shaped part 30A can be easily moved. The saddle shape refers to an arc shape in a cross-sectional view. The arc need not have a constant radius.

  In the present embodiment, it is preferable that a metal member 32 is provided on the outer periphery of the hook-shaped portion 30A and in accordance with the shape of the hook-shaped portion 30A. The metal member 32 can reinforce the hook-shaped portion 30A. Further, the operation wire 18 can be fixed to the metal member 32 by providing the metal member 32 with the wire fixing portion 32A. When the operation wire 18 is pushed and pulled, the metal member 32 moves around the notch 30B, and the hook-shaped portion 30A can be raised. Since the hook-shaped portion 30A stands up, it is possible to change the direction in which the treatment instrument (not shown) led out to the distal end side of the treatment instrument channel 12A is changed.

  Next, an endoscope using the above-described treatment instrument standing device will be described. FIG. 4 is a schematic configuration diagram of the endoscope. The endoscope 100 includes an endoscope main body 102 and a treatment instrument erecting device 10 that is inserted into and removed from the insertion channel 104 of the endoscope main body 102. The endoscope main body 102 includes an insertion unit 106 that is inserted into the body of a subject, and an operation unit 108 is coupled to the proximal end side of the insertion unit 106. A universal cord 110 is connected to the operation unit 108, and the endoscope body 102 is connected to a light source device, an image processing device, and an air / water supply device (not shown) via the universal cord 110.

  The insertion portion 106 has a distal end and a proximal end, and is configured by connecting a distal end portion 112, a bending portion 114, and a flexible portion 116 from the distal end side toward the proximal end side. Inside the insertion portion 106, an insertion channel 104 that guides the treatment instrument stand device 10 to the distal end portion 112, a light guide (not shown) that guides illumination light supplied from the light source device to the distal end portion 112, and an air / water supply device An air / water supply tube (not shown) for guiding the air and water supplied from the head to the tip 112 and a signal cable (not shown) for transmitting a signal from an image pickup unit (not shown) arranged at the tip 112 It is inserted.

  The operation unit 108 includes two angle knobs 118 for bending the bending unit 114, an air / water supply button 122 for ejecting air and water from an air / water supply nozzle 120 provided at the tip 112, and a tip A suction button 124 for sucking a body fluid such as blood from 112 is provided at a predetermined position. A suction mechanism using the suction button 124 will be described later.

  The bending portion 114 has a structure in which a plurality of angle rings (not shown) are connected to each other so as to be rotatable. The curved portion 114 is configured by covering the outer periphery of the structure with a cylindrical net knitted with a metal wire and covering the outer peripheral surface of the net with a rubber outer skin. A plurality of wires (not shown) are disposed from the two angle knobs 118 of the operation unit 108 to the bending portion 114. The tips of these wires are fixed to the tip of the angle ring that constitutes the bending portion 114. As a result, by rotating the two angle knobs 118, the bending portion 114 is bent vertically and horizontally by pushing and pulling these wires.

  The soft part 116 has a spiral tube formed by spirally winding a thin metal strip having elasticity. The soft part 116 has a cylindrical mesh body knitted with a metal wire coated on the outside of the spiral tube, and an outer skin made of resin coated on the outer peripheral surface of the mesh body.

  In addition, the operation unit 108 is provided with an introduction port 126 for introducing the treatment instrument erecting device 10. The treatment instrument erecting device 10 introduced from the introduction port 126 is led out to the outside from the tip of the distal end portion 112 via the insertion channel 104 inserted through the insertion portion 106.

  The standing operation part 14 of the treatment instrument standing apparatus 10 is preferably fixed to an attachment part 128 provided at the introduction port 126. Since the standing operation part 14 is fixed, the operation with respect to the standing operation part 14 becomes easy.

  The distal end portion 112 is provided with a distal end portion main body 130. An illumination window 132 and an observation window 134 are disposed adjacent to the tip body 130. The tip body 130 is provided with an air / water nozzle 120 directed to the observation window 134. The endoscope 100 according to the present embodiment is configured as a so-called perspective endoscope. The perspective endoscope includes an optical system (illumination window 132 and observation window 134) having an optical axis that is oblique with respect to the axial direction of the insertion portion 106. Note that the endoscope 100 may be a direct-view endoscope.

  The air / water supply nozzle 120 is connected to an air / water supply device via an air / water supply tube (not shown) inserted through the insertion portion 106. By operating the air / water supply button 122 of the operation unit 108 shown in FIG. 4, compressed air or water is jetted from the air / water supply nozzle 120 toward the observation window 134, and the observation window 134 is washed.

  An illumination unit and a photographing unit (not shown) are accommodated in the tip body 130. The illumination unit includes an illumination lens installed inside the illumination window 132 and a light guide arranged so that the tip of the illumination lens faces the illumination lens. The light guide is inserted through the insertion portion 106 of the endoscope main body 102, and the base end thereof is connected to the light source device. Thereby, the irradiation light from the light source device is transmitted through the light guide and is irradiated to the outside from the illumination window 132.

  The imaging unit includes an imaging optical system disposed inside the observation window 134 and a CMOS (complementary metal oxide semiconductor) type or CCD (charge coupled device) type imaging device. The imaging element is connected to the above-described image processing apparatus via a signal cable inserted through the insertion unit 106 and the universal cord 110. An imaging signal of the subject image obtained by the imaging unit is output to the image processing device via the signal cable and subjected to image processing, and then displayed as a subject image on a monitor connected to the image processing device.

  When using the endoscope 100, the endoscope main body 102 and the treatment instrument erecting device 10 are prepared. The treatment instrument erecting device 10 is introduced from the introduction port 126 of the endoscope main body 102. The standing base 16 and the pipe main body 12 of the treatment instrument standing apparatus 10 are inserted through the insertion channel 104. The stand 16 of the treatment instrument erecting apparatus 10 and a part of the pipe main body 12 are led out from the distal end side of the insertion channel 104 of the endoscope main body 102.

  A forceps plug (not shown) can be attached to the introduction port 126 of the endoscope body 102. The forceps plug can prevent blood that flows back from the body of the subject, internal filth, and physiological saline for internal cleaning from leaking outside through the insertion channel 104.

  The treatment tool 140 is inserted from the forceps plug 26. The inserted treatment tool 140 is inserted into the treatment tool channel 12 </ b> A of the conduit body 12 of the treatment tool erecting apparatus 10. The distal end of the treatment instrument 140 is led out from the distal end side of the treatment instrument channel 12 </ b> A of the conduit body 12.

  By pushing and pulling the operation wire 18 by the standing operation unit 14 of the treatment instrument standing device 10, the stand 16 is rotated between the lying position and the standing position around the shaft portion 22 and moved. By changing the posture of the stand 16, the derivation direction of the treatment instrument 140 derived from the treatment instrument channel 12 </ b> A is changed in the subject.

  When the examination and treatment by the endoscope 100 are completed, the endoscope 100 is cleaned. When cleaning the endoscope 100, the treatment tool 140 is pulled out from the treatment tool channel 12A of the treatment tool erecting apparatus 10. The treatment instrument erecting device 10 is pulled out from the endoscope main body 102. The treatment instrument erecting apparatus 10 including the upright stand 16 having a complicated structure and the operation wire 18 which is not easily cleaned is pulled out as a unit. By removing the treatment instrument erecting device 10 from the endoscope body 102, the erecting base 16 and the operation wire 18 can be thoroughly cleaned and disinfected. Since the periphery of the stand 16 is open, small gaps in the structure of the stand 16 can be reliably cleaned. When the pipe body 12 is provided with a cleaning hole 12C communicating with the wire channel 12B, as described above, the operation wire 18 and the wire channel 12B are cleaned, disinfected, EOG sterilized, or autoclave sterilized. Etc. can be performed.

  When an upright stand, an operation wire, or the like is incorporated in the endoscope main body, there is a concern that the brush is difficult to enter due to the arrangement relationship with other structures, and the structural gaps cannot be sufficiently cleaned. In order to sterilize the stand and the operation wire, there is a concern that the endoscope body may be destroyed if it is placed in an autoclave. In the treatment instrument stand device 10 of this embodiment, these concerns are solved.

  In the endoscope 100 of FIG. 4, a distal end cap 136 described later can be attached to the distal end portion main body 130 provided at the distal end portion 112.

  Hereinafter, a preferable aspect is demonstrated regarding the treatment tool erecting apparatus 10 and the endoscope 100 of this embodiment.

  FIG. 5 is an assembly perspective view showing the configuration of the distal end portion of the insertion portion. The endoscope shown in FIG. 5 is configured as a so-called side-view type endoscope. The side-view type endoscope includes an optical system (illumination window 132 and observation window 134) having an optical axis substantially orthogonal to the axial direction of the insertion portion 106 on the side surface of the distal end portion 112 of the insertion portion 106. As shown in FIG. 5, the treatment instrument stand device 10 including the stand 16 is inserted into the insertion channel 104 of the endoscope body 102. The treatment instrument erecting device 10 led out from the insertion channel 104 is led out from the lead-out port 130A of the distal end body 130. A tip cap 136 is attached to the tip portion main body 130.

  In the endoscope of the present embodiment, as described above, the treatment instrument erecting device 10 is inserted through the endoscope main body 102. When the stand 16 of the treatment instrument erecting apparatus 10 is operated during the examination and treatment, the pipe body 12 of the treatment instrument erecting apparatus 10 is not intended in the insertion channel 104 at the distal end portion 112 of the endoscope main body 102. It is not preferable to rotate in the direction. When the pipe main body 12 rotates, the position of the stand 16 changes, and the derivation direction of the treatment instrument (not shown) may change.

  In the present embodiment, as shown in FIG. 5, in order to prevent the pipe body 12 from rotating at the distal end 112, the notch provided in the outlet 130 </ b> A is the first engaging part 130 </ b> B, The outer periphery of the lumen constituting the wire channel 12B of the main body 12 is defined as a second engaging portion 12D, and when the pipe main body 12 of the treatment instrument stand device 10 is inserted through the distal end portion main body 130, the first engaging portion 130B and the second engaging portion The engaging portion 12D is configured to be engaged. By engaging the first engagement portion 130 </ b> B and the second engagement portion 12 </ b> D, the pipe body 12 can be restricted from rotating at the distal end portion 112.

  As long as the rotation of the pipe main body 12 is regulated by the distal end main body 130, the configuration of the first engaging portion 130B and the second engaging portion 12D is not limited to this. In the present embodiment, the case where the first engagement portion 130 </ b> B is provided in the distal end portion main body 130 has been described, but the first engagement portion can also be provided in the distal end cap 136.

  Next, in the embodiment shown in FIGS. 6 to 8, unlike the embodiment of FIG. 5, the distal end portion of the endoscope body permits the rotation of the conduit body of the treatment instrument erecting device, and the conduit It can also be set as the structure which fixes the position of a main body. By switching while controlling the rotation and fixing of the pipe body, the position of the stand can be changed, and the degree of freedom in the direction in which the treatment instrument is led out can be increased.

  FIG. 6 is a schematic diagram of a configuration of a switching mechanism that switches between rotation and fixation of the pipe body. As shown in FIG. 6, a standing operation unit 14 and a forceps plug 26 are provided on the proximal end side of the conduit main body 12 in the treatment instrument standing apparatus 10. In the present embodiment, a tapered portion 38 is provided on the proximal end side of the conduit main body 12 and on the distal end side of the standing operation portion 14. The tapered portion 38 has a tapered shape toward the distal end side. An attachment portion 128 having a recess 128A for receiving the tapered portion 38 is provided at the introduction port 126 of the operation portion 108 (not shown) of the endoscope main body 102 (not shown). The concave portion 128A has a shape in which the opening diameter tapers toward the tip end side, and is configured such that the tapered portion 38 can be fitted therein.

  The tapered portion 38 is fixed to the pipe body 12. For example, it is possible to rotate the pipe body 12 by rotating the tapered portion 38. When the position of the pipe main body 12 is determined, the treatment instrument erecting device 10 is pushed into the introduction port 126 side of the endoscope main body 102 (not shown). The tapered portion 38 and the recessed portion 128A are engaged with each other, and the pipe body 12 can be prevented from rotating due to the frictional force between the tapered portion 38 and the recessed portion 128A. In the present embodiment, the tapered portion 38 and the recess 128A of the attachment portion 128 constitute a switching mechanism.

  FIG. 7 is a schematic view of the configuration of another switching mechanism. The same components as those in FIG. 6 may be denoted by the same reference numerals and description thereof may be omitted. In the embodiment of FIG. 7, an O-ring 40 is provided on the distal end side of the standing operation portion 14 on the proximal end side of the conduit main body 12 instead of the tapered portion 38 shown in FIG. 6. A mounting portion 128 having a recess 128A for receiving the O-ring 40 is provided at the introduction port 126 of the operation portion 108 (not shown).

  The O-ring 40 is fixed to the pipe body 12. For example, by rotating the O-ring 40, the pipe body 12 can be rotated. When the position of the pipe main body 12 is determined, the treatment instrument erecting device 10 is pushed into the introduction port 126 side of the endoscope main body 102 (not shown). It is possible to prevent the O-ring 40 and the recess 128A from engaging with each other and the pipe body 12 from rotating due to the frictional force between the O-ring 40 and the recess 128A. In the present embodiment, the O-ring 40 and the recess 128A of the attachment portion 128 constitute a switching mechanism.

  FIG. 8 is a schematic view of the configuration of another switching mechanism. The same components as those in FIGS. 6 and 7 may be denoted by the same reference numerals and description thereof may be omitted. In the embodiment of FIG. 8, instead of the tapered portion 38 shown in FIG. 6, a flange 42 and a spline 44 are provided in this order from the standing operation portion 14 toward the distal end side. The spline 44 has irregularities along its outer periphery. A mounting portion 128 having a recess 128 </ b> A for receiving the unevenness of the spline 44 is provided at the introduction port 126 of the operation portion 108 (not shown).

  The flange 42 and the spline 44 are fixed to the pipe body 12. For example, the pipe body 12 can be rotated by rotating the flange 42. When the position of the pipe main body 12 is determined, the treatment instrument erecting device 10 is pushed into the introduction port 126 side of the endoscope main body 102 (not shown). The spline 44 and the recess 128 </ b> A engage with each other, and the flange 42 comes into contact with the upper portion of the attachment portion 128, whereby the pipe body 12 can be prevented from rotating. In this embodiment, the flange 42, the spline 44, and the recess 128A of the attachment portion 128 constitute a switching mechanism.

  Next, a preferred configuration for performing the operation of pushing and pulling the operation wire will be described with reference to FIGS. FIG. 9 is a configuration diagram showing an outline of a standing operation unit of the treatment instrument standing device. As shown in FIG. 9, the standing operation unit 14 includes a rotation operation unit 50 and a movable ring 52 accommodated in the rotation operation unit 50. The rotation operation unit 50 is provided with a cam groove 50 </ b> A that is inclined with respect to the axial direction of the rotation operation unit 50 on the inner periphery thereof. The depth of the cam groove 50 </ b> A is set to a depth that does not penetrate the rotation operation unit 50. The movable ring 52 is provided with a pin 52A that protrudes toward the outer periphery. The movable ring 52 is provided with a wire fixing portion 52B. The wire fixing part 52B and the operation wire 18 are fixed. The pin 52A of the movable ring 52 is slidably engaged with the cam groove 50A of the rotation operation unit 50.

  The operation of pushing and pulling the operation wire 18 will be described. By rotating the rotation operation unit 50 with the right hand, the pin 52A of the movable ring 52 slides and moves following the cam groove 50A. As a result, the movable ring 52 can be reciprocated linearly along the axial direction of the movable ring 52. Since the operation wire 18 is fixed to the movable ring 52, the operation wire 18 can be pushed and pulled. By operating the operation wire 18 to push and pull, the stand 16 (not shown) can be moved between the lying position and the standing position.

  Further, in order to suppress the rotation of the movable ring 52, it is preferable to provide a key (not shown) on the movable ring 52 and engage with a fixed member (not shown). The movable ring 52 can be reliably converted into a linear motion.

  In the present embodiment, the cam groove 50A and the pin 52A constitute a cam mechanism.

  FIG. 10 is a configuration diagram illustrating an outline of the standing operation unit, and FIG. 11 is an exploded view of the standing operation unit. As shown in FIG. 10, the ring 60, the lever 62, and the shaft portion 64 are attached to the introduction port 126 of the operation unit 108. The ring 60 has a shape along the outer periphery of the inlet 126 and is fixed to the inlet 126. The shaft portion 64 fixes the lever 62 to the ring 60 so as to be rotatable. The ring 60, the lever 62, and the shaft part 64 constitute the standing operation part 14.

  The lever 62 includes a first portion 62A, a second portion 62B, and an opening 62C, and the first portion 62A and the second portion 62B form a substantially L shape. The lever 62 is rotatably fixed to the ring 60 via the shaft portion 64 at the L-shaped corner.

  The operation wire 18 is fixed to the tip of the second portion 62B of the lever 62. The lever 62 is fixed to the ring 60 at a position where the first portion 62A faces the proximal end side.

  The operation of pushing and pulling the operation wire 18 will be described. For example, when the first portion 62A of the lever 62 is grasped by the second finger and the third finger of the left hand, the first portion 62A approaches the operation portion 108 around the shaft portion 64. On the other hand, the second portion 62 </ b> B moves away from the operation unit 108. As a result, the operation wire 18 fixed to the second portion 62B can be pulled. By pulling the operation wire 18, the stand 16 (not shown) can be moved in the direction of the standing position.

  When the grip of the lever 62 is loosened, the lever 62 returns to the original state, so that the operation wire 18 is pushed in, and the upright stand 16 (not shown) can be moved toward the lying position. In the present embodiment, as shown in FIG. 2, it is preferable to bias the upright 16 in the direction of the lying down position by the torsion coil spring 28. The treatment instrument is inserted into the treatment instrument channel 12A (not shown) through the opening 62C.

  FIG. 12 is a configuration diagram showing an outline of the standing operation unit, and FIG. 13 is an exploded view of the standing operation unit. As shown in FIG. 12, a ring 70, a lever 72, and a shaft 74 are attached to the operation unit 108. The ring 70 has a shape along the outer periphery of the operation unit 108 and is fixed to the operation unit 108. The shaft portion 74 rotatably fixes the lever 72 to the ring 70. The ring 70, the lever 72, and the shaft portion 74 constitute the standing operation unit 14.

  The lever 72 has a first portion 72A and a second portion 72B, and the first portion 72A and the second portion 72B form a substantially L shape. The lever 72 is rotatably fixed to the ring 70 via the shaft portion 64 at an L-shaped corner.

  The operation wire 18 is fixed to the tip of the second portion 72B of the lever 72. The lever 72 is fixed to the operation unit 108 at a position where the first portion 72A faces the distal end side and at a position opposite to the introduction port 126.

  The operation of pushing and pulling the operation wire 18 will be described. For example, when the first portion 72A of the lever 72 is grasped by the first finger of the left hand, the first portion 72A approaches the operation unit 108 with the shaft portion 74 as the center. On the other hand, the second portion 72 </ b> B moves away from the operation unit 108. As a result, the operation wire 18 fixed to the second portion 72B can be pulled. By pulling the operation wire 18, the stand 16 (not shown) can be moved in the direction of the standing position.

  When the grip of the lever 72 is loosened, the lever 72 returns to the original state, so that the operation wire 18 is pushed in and the upright 16 (not shown) can be moved in the direction of the lying down position. In the present embodiment, as shown in FIG. 2, it is preferable to bias the upright 16 in the direction of the lying down position by the torsion coil spring 28.

  FIG. 14 is a configuration diagram showing an outline of the standing operation unit. As shown in FIG. 14, a cylindrical member 80 slidable with respect to the pipe body 12 is attached to the proximal end side of the pipe body 12. On the base end side of the cylindrical member 80, two finger hooks 80A that protrude from the outer periphery of the cylindrical member 80 are provided. The two finger hooks 80A are provided at the target position. A wire fixing portion 80B for fixing the operation wire 18 is provided on the outer periphery of the cylindrical member 80 and on the distal end side of the cylindrical member 80. In addition, a protrusion 80 </ b> C extending outward is provided on the outer periphery of the cylindrical member 80. For example, the protrusion 80 </ b> C is provided at a position between the proximal end side and the distal end side of the cylindrical member 80.

  A ring member 138 is attached to the introduction port 126 of the operation unit of the endoscope main body. A groove 138 </ b> A extending along the axial direction of the introduction port 126 is provided on the inner periphery of the ring member 138. The groove 138 </ b> A is formed across the axial direction of the ring member 138. The projection 80C of the cylindrical member 80 can slide in the axial direction in the groove 138A. The ring member 138 is provided with a recess 138B. Unlike the groove 138A, the recess 138B is not formed over the axial direction of the ring member 138. The recess 138B is shorter than the groove 138A and has a bottom surface 138C.

  The ring member 138 is provided with a notch 138D that can accommodate the wire fixing portion 80B of the cylindrical member 80.

  The operation of pushing and pulling the operation wire 18 will be described. For example, the second finger and the third finger are hung on the finger hanging portion 80A of the cylindrical member 80, and the cylindrical member 80 is pulled. The cylindrical member 80 moves toward the distal end side along the pipe body 12 while the projection 80C is guided by the groove 138A. Since the operation wire 18 is fixed to the cylindrical member 80 and the cylindrical member 80 slides with respect to the pipe body 12, only the operation wire 18 can be pulled. By pulling the operation wire 18, the stand 16 (not shown) can be moved in the direction of the standing position.

  A case where the position of the cylindrical member 80 is fixed will be described. The cylindrical member 80 is moved to a position where the projection 80C of the cylindrical member 80 protrudes from the upper surface 138E of the ring member 138, and then the cylindrical member 80 is rotated to fit the projection 80C into the recess 138B. Since the bottom surface 138C is provided in the recess 138B, the movement of the protrusion 80C is restricted, and the position of the protrusion 80C can be fixed. That is, the position of the cylindrical member 80 can be fixed. As a result, the posture of the stand 16 can be fixed, which is effective when the operation wire 18 needs to be locked.

  The movement of the wire fixing portion 80B when the cylindrical member 80 is rotated can be permitted by the notch portion 138D provided in the ring member 138.

  By pushing the cylindrical member 80 by hand, the cylindrical member 80 can be returned to its original position. By this operation, the operation wire 18 is pushed in, so that the upright stand 16 (not shown) can be moved in the direction of the lying down position. In the present embodiment, as shown in FIG. 2, it is preferable to bias the upright 16 in the direction of the lying down position by the torsion coil spring 28. In the above embodiment, as shown in FIG. 4, the forceps plug 26 can be attached to the introduction port 126.

  Next, a preferable suction mechanism in the endoscope in which the treatment instrument erecting apparatus of the present embodiment is inserted into the endoscope main body will be described based on FIGS. 15 to 19.

  FIG. 15 is a schematic view showing a configuration of an endoscope suction mechanism. As shown in FIG. 15, the treatment instrument erecting device 10 is inserted through the endoscope main body 102. A branch conduit 90 is provided on the side of the standing operation section 14 of the conduit main body 12 of the treatment instrument standing device 10. The branch pipe 90 is branched from a treatment instrument channel 12A (not shown) of the pipe main body 12. Therefore, the branch conduit 90 and the treatment instrument channel 12A communicate with each other. The other end of the branch pipe 90 is connected to the switching valve 150. The switching valve 150 is provided on the suction button 124 provided on the endoscope main body 102. The suction button 124 functions as a base for the switching valve 150. Further, the switching valve 150 may be directly mounted on a cylinder (not shown) to which the suction button 124 is mounted.

  A suction conduit 92 connected to a suction device (not shown) is connected to the switching valve 150. By operating the switching valve 150, the open / closed state of the branch pipe line 90 and the suction pipe line 92 connected to the suction device can be switched.

  During the examination and treatment, the suction device is always driven. However, unless the switching valve 150 is operated, the switching valve 150 keeps the branch pipe line 90 and the suction pipe line 92 closed. Therefore, the negative pressure generated by the suction device is blocked with respect to the branch conduit 90, and body fluid such as blood is not sucked into the suction device via the treatment instrument channel 12A. When the switching valve 150 is in the closed state, the suction pipe 92 is communicated with the external atmosphere.

  When the switching valve 150 is operated, the switching valve 150 opens the branch pipe line 90 and the suction pipe line 92, and blood or the like passes through the treatment instrument channel 12A of the treatment instrument standing apparatus 10 due to the negative pressure generated by the suction apparatus. The body fluid is sucked into the suction device from the branch line 90.

  FIG. 16 is a schematic diagram showing the configuration of another endoscope suction mechanism, and FIG. 17 is a schematic configuration diagram of the inside of the endoscope body. The same components as those in FIG. 15 may be denoted by the same reference numerals and description thereof may be omitted. In the embodiment of FIG. 16, unlike the embodiment of FIG. 15, the branch conduit 90 is inserted through the endoscope main body 102 via the switching valve 150. As shown in FIG. 17, the branch conduit 90 is connected to a suction conduit 92 (also referred to as a suction channel) provided inside the endoscope body 102 via a switching valve 150. The suction line 92 is connected to a suction device (not shown).

  By operating a switching valve 150 provided in the endoscope main body 102, the open / closed state of the branch conduit 90 and the suction conduit 92 connected to the suction device can be switched.

  As in the embodiment of FIG. 15, when the switching valve 150 is not operated, the suction line 92 is communicated with the external atmosphere. When the switching valve 150 is operated, the branch conduit 90 and the suction conduit 92 are opened, and blood is passed through the treatment instrument channel 12A (not shown) of the treatment instrument stand-up apparatus 10 due to the negative pressure generated by the suction apparatus. Or the like is sucked into the suction device from the branch conduit 90.

  FIG. 18 is a schematic diagram showing a configuration of another endoscope suction mechanism, and FIG. 19 is a schematic configuration diagram of the inside of the endoscope main body. The same components as those in FIG. 15 may be denoted by the same reference numerals and description thereof may be omitted. In the embodiment of FIG. 18, unlike the embodiment of FIG. 15, the branch conduit 90 is inserted through the endoscope body 102. As shown in FIGS. 18 and 19, the endoscope main body 102 is provided with a suction cap 94 and a connector 95. As shown in FIG. 19, a communication conduit 96 that communicates between the base 94 and the suction button 124 is provided. The branch conduit 90 is connected to a suction conduit 92 (also referred to as a suction channel) provided inside the endoscope main body 102 through a connector 95, a base 94, a communication conduit 96, and a suction button 124. Is done. The suction line 92 is connected to a suction device (not shown).

  By operating a suction button 124 provided on the endoscope main body 102, the open / closed state of the branch conduit 90 and the suction conduit 92 connected to the suction device can be switched. In the present embodiment, the suction button 124 functions as a switching valve.

  As in the embodiment of FIG. 15, when the suction button 124 is not operated, the suction conduit 92 is communicated with the external atmosphere. When the suction button 124 is operated, the branch line 90 and the suction line 92 are opened, and blood is passed through the treatment instrument channel 12A (not shown) of the treatment instrument erecting apparatus 10 due to the negative pressure generated by the suction apparatus. Or the like is sucked into the suction device from the branch conduit 90.

[Second Embodiment]
An endoscope to which a treatment tool erecting device different from the first embodiment is applied will be described. The same components as those in the first embodiment may be denoted by the same reference numerals and description thereof may be omitted. FIG. 20 is a schematic configuration diagram of an endoscope. The endoscope 100 includes an endoscope main body 102 and a treatment instrument erecting device 10 that is fixed to the outer periphery of the endoscope main body 102.

  Unlike the treatment instrument erecting apparatus of the first embodiment, the treatment instrument erecting apparatus of the second embodiment is fixed to the outer periphery of the endoscope main body 102.

  The endoscope main body 102 according to this embodiment includes an insertion unit 106 that is inserted into the body of a subject, and an operation unit 108 is coupled to the proximal end side of the insertion unit 106. A universal cord 110 is connected to the operation unit 108, and the endoscope body 102 is connected to a light source device, an image processing device, and an air / water supply device (not shown) via the universal cord 110.

  The insertion portion 106 has a distal end and a proximal end, and is configured by connecting a distal end portion 112, a bending portion 114, and a flexible portion 116 from the distal end side toward the proximal end side. The insertion portion 106 is supplied from an insertion channel 104 that guides the treatment tool to the distal end portion 112, a light guide (not shown) that guides illumination light supplied from the light source device to the distal end portion 112, and an air / water supply device. An air / water supply tube (not shown) that guides air and water to the tip 112 and a signal cable (not shown) that transmits a signal from an imaging unit (not shown) disposed at the tip 112 are inserted. Yes. The endoscope shown in FIG. 20 is configured as a so-called side-view type endoscope. However, the present invention is not limited to a side-view type endoscope, and can also be applied to a perspective-type endoscope.

  The operation unit 108 includes two angle knobs 118 for bending the bending unit 114, an air / water supply button 122 for ejecting air and water from an air / water supply nozzle 120 provided at the tip 112, and a tip A suction button 124 for sucking body fluid such as blood from a suction port (not shown) provided in 112 is provided at a predetermined position.

  The bending portion 114 has a structure in which a plurality of angle rings (not shown) are connected to each other so as to be rotatable. The curved portion 114 is configured by covering the outer periphery of the structure with a cylindrical net knitted with a metal wire and covering the outer peripheral surface of the net with a rubber outer skin. A plurality of wires (not shown) are disposed from the two angle knobs 118 of the operation unit 108 to the bending portion 114. The tips of these wires are fixed to the tip of the angle ring that constitutes the bending portion 114. As a result, by rotating the two angle knobs 118, the bending portion 114 is bent vertically and horizontally by pushing and pulling these wires.

  The soft part 116 has a spiral tube formed by spirally winding a thin metal strip having elasticity. The flexible portion 116 has a cylindrical mesh body knitted with a coated metal wire and an outer skin made of resin coated on the outer peripheral surface of the mesh body on the outside of the spiral tube. The operation unit 108 is provided with an introduction port 126 for introducing a treatment instrument.

  The treatment instrument erecting apparatus 10 of the present embodiment includes a distal end cap 136 including an attachment member (not shown) attached to the distal end main body 130 of the distal end 112 of the endoscope main body 102 on the distal end side. The stand 16 is rotatably attached to the mounting member. The treatment instrument erecting apparatus 10 includes an erecting operation unit 14 on the proximal end side. It is preferable that the erection operation unit 14 of the treatment instrument erecting apparatus 10 is fixed to an attachment unit 128 provided in the introduction port 126 of the endoscope main body 102. Since the standing operation part 14 is fixed, the operation with respect to the standing operation part 14 becomes easy.

  The treatment instrument erecting apparatus 10 includes an operation wire 18 having a distal end side connected to the erecting base 16 and a proximal end side connected to the erecting operation unit 14. Further, a protective tube 46 through which the operation wire 18 is inserted is provided. The protective tube 46 is composed of a coil or the like.

  The protective tube 46 exposed from the standing operation portion 14 and having the operation wire 18 inserted therein is guided from the operation portion 108 to the distal end portion 112 of the insertion portion 106 along the outer periphery of the endoscope main body 102. The protective tube 46 is fixed to the endoscope body 102 by, for example, a surgical tape 48.

  The stand 16 can be moved between the lying position and the standing position by pushing and pulling the operation wire 18 by the standing operation section 14 of the treatment instrument standing apparatus 10.

  The standing operation unit 14 of the treatment instrument standing apparatus 10 has an introduction port, and a forceps plug 26 is attached to the introduction port via a base (not shown).

  When using the endoscope 100, the endoscope main body 102 and the treatment instrument erecting device 10 are prepared. The treatment instrument erecting device 10 is attached to the introduction port 126 of the endoscope main body 102. A distal end cap 136 having a support member for supporting the standing base 16 of the treatment instrument erecting apparatus 10 and an attachment member for attaching to the distal end portion main body is fixed to the distal end portion main body 130 of the endoscope main body 102.

  The treatment tool 140 is inserted from the forceps plug 26. The inserted treatment instrument 140 is inserted into the insertion channel 104 of the endoscope main body 102. The treatment tool 140 is led out from the distal end side of the insertion channel 104. The operation wire 18 is pushed and pulled by the erection operation unit 14 of the treatment instrument erection device 10 to rotate and move the erection table 16 between the lying position and the erection position. By changing the posture of the stand 16, the direction in which the treatment tool 140 is derived from the insertion channel 104 is changed in the subject.

  In the present embodiment, the tip cap 136 is provided with an opening. The operation wire 18 guided to the tip end portion 112 by the protective tube 46 is connected to the stand 16 through the opening. However, the structure is not particularly limited as long as the operation wire 18 and the upright 16 can be connected.

  By operating the suction button 124 of the endoscope main body 102 during the examination and treatment, body fluid such as blood can be sucked from the distal end side of the insertion channel 104.

  When the examination and treatment by the endoscope 100 are completed, the endoscope 100 is cleaned. When cleaning the endoscope 100, the treatment instrument 140 is pulled out from the insertion channel 104 of the insertion portion 106, and the surgical tape 48 is removed, whereby the protection tube 46 is released from being fixed to the insertion portion 106. Further, the treatment instrument erecting device 10 is detached from the endoscope main body 102 by removing the distal end cap 136 from the distal end main body 130. The treatment instrument erecting apparatus 10 including the upright 16 having a complicated structure and the operation wire 18 that is not easily cleaned is integrally removed from the endoscope body 102. By removing the treatment instrument stand 10 from the endoscope body, the stand 16 and the operation wire 18 can be thoroughly cleaned and disinfected. Since the periphery of the stand 16 is open, small gaps in the structure of the stand 16 can be reliably cleaned.

  The operation wire 18 inserted into the protective tube 46 can be cleaned with a cleaning solution, poisoned with a disinfecting solution, EOG sterilization, autoclave sterilization, or the like.

  When an upright stand, an operation wire, or the like is incorporated in the endoscope main body, there is a concern that the brush is difficult to enter due to the arrangement relationship with other structures, and the structural gaps cannot be sufficiently cleaned. In order to sterilize the stand and the operation wire, there is a concern that the endoscope body may be destroyed if it is placed in an autoclave. In the treatment instrument stand device 10 of this embodiment, these concerns are solved.

  In addition, the structure of the standing operation part shown by FIGS. 9-14 demonstrated in 1st Embodiment is applicable.

DESCRIPTION OF SYMBOLS 10 Treatment tool standing apparatus 12 Pipe body 12A Treatment tool channel 12B Wire channel 12C Washing hole 12D 2nd engaging part 14 Standing operation part 16 Standing base 18 Operation wire 20 Support body 22 Shaft part 24 Forceps mouthpiece 26 Forceps stopper 28 Torsion coil spring 28A Arm 28B Arm 30 Standing portion 30A Cone-shaped portion 30B Notch portion 32 Metal member 32A Wire fixing portion 38 Tapered portion 40 O-ring 42 Flange 44 Spline 46 Protective tube 48 Surgical tape 50 Rotating operation portion 50A Cam groove 52 Movable ring 52A Pin 52B Wire Fixing portion 60 Ring 62 Lever 62A First portion 62B Second portion 62C Opening 64 Shaft portion 70 Ring 72 Lever 72A First portion 72B Second portion 74 Shaft portion 80 Cylindrical member 80A Finger hook portion 80B Wire fixing portion 80C Protrusion 90 Branch pipe 92 Sucking Pull-in line 94 Base 95 Connector 96 Communication line 100 Endoscope 102 Endoscope body 104 Insertion channel 106 Insertion part 108 Operation part 110 Universal cord 112 Tip part 114 Bending part 116 Flexible part 118 Angle knob 120 Air / water supply nozzle 122 Air supply / water supply button 124 Suction button 126 Inlet port 128 Attached portion 128A Recessed portion 130 Front end portion body 130A Outlet port 130B First engaging portion 132 Illumination window 134 Observation window 136 End cap 138 Ring member 138A Groove 138B Recessed portion 138C Bottom surface 138D Notch portion 138E Upper surface 140 Treatment tool 150 Switching valve

Claims (17)

A treatment instrument erecting device inserted into and removed from a channel of an endoscope body,
A conduit main body having a distal end and a proximal end, and a treatment instrument channel through which a treatment instrument can be inserted and a wire channel through which an operation wire can be inserted;
An operation wire inserted through the wire channel;
An upright operation portion that is provided on the proximal end side of the pipe body and to which the proximal end side of the operation wire is connected;
An upright mechanism provided on the distal end side of the pipe body and connected to the distal end side of the operation wire,
The operation wire is pushed and pulled by the standing operation unit to move the standing mechanism between the lying position and the standing position, and the direction of the treatment tool led to the distal end side of the treatment tool channel is changed. Changing treatment tool standing device.   The treatment instrument erecting apparatus according to claim 1, wherein the conduit main body is formed of a multi-lumen tube.   The treatment instrument stand device according to claim 1 or 2, further comprising a base on the proximal end side of the conduit main body and capable of attaching a forceps plug to an introduction port of the treatment instrument channel.   The treatment instrument erecting apparatus according to claim 3, further comprising a forceps plug on a proximal end side of the conduit main body.   The treatment instrument standup device according to any one of claims 1 to 4, wherein the standup mechanism is a stand that is attached to the pipe body.   The treatment instrument erecting apparatus according to claim 5, wherein an elastic member for urging the upright in the direction of the lying down position is provided on a distal end side of the pipe body.   The standing mechanism is a standing part constituted by a part of the distal end side of the pipe body, and the standing part is constituted by a bowl-shaped part and a notch part provided at a base end of the bowl-shaped part. The treatment instrument standup device according to any one of claims 1 to 4.   The treatment instrument erecting apparatus according to any one of claims 1 to 7, further comprising a branch pipe that branches the treatment instrument channel of the pipe body on the side of the standing operation section.   The treatment instrument standup device according to any one of claims 1 to 8, wherein the pipe body is configured by a tube around which a close coil is wound, or a blade tube. The treatment instrument stand device according to any one of claims 1 to 9,
An insertion portion having a distal end and a proximal end; an insertion channel provided in the insertion portion; the insertion channel passing through the treatment instrument erecting device; and a proximal end side of the insertion portion, communicating with the insertion channel, An endoscope main body having an operation portion including an introduction port into which the treatment instrument standing device is introduced; and a distal end portion main body provided on the distal end side of the insertion portion and including an observation window;
An endoscope comprising:   The endoscope according to claim 10, further comprising a distal end cap attached to the distal end main body.   A first engagement portion provided on the distal end portion body or the distal end cap; and a second engagement portion provided on an outer periphery of a conduit main body of the treatment instrument erecting device, wherein the first engagement portion The endoscope according to claim 11, wherein the movement of the standing mechanism of the treatment instrument standing device is regulated by engaging the second engaging portion with the second engaging portion.   12. The switch mechanism according to claim 10, further comprising: a switching mechanism that switches between rotation and fixation of the conduit main body of the treatment instrument stand-up device in the operation section of the treatment instrument stand-up device and the operation unit of the endoscope main body. Endoscope.   The standing operation section of the treatment instrument standing apparatus includes a rotation operation section and a cam mechanism for converting the rotation of the rotation operation section into a push / pull direction of an operation wire of the treatment instrument standing apparatus. The endoscope according to one item.   The erection operation part of the treatment instrument erecting apparatus includes a lever provided in an operation part of the endoscope main body and capable of pushing and pulling an operation wire of the treatment instrument erecting apparatus. The endoscope according to 1.   The standing operation portion of the treatment instrument standing device is provided at a guide member, a cylindrical member having a protrusion extending outward, the operation wire connected to the cylindrical member, and an introduction port of the endoscope body, The endoscope according to any one of claims 10 to 13, configured by a ring member having a groove capable of sliding the projection of the cylindrical member and a concave portion for fixing the projection of the cylindrical member.   The internal view according to any one of claims 10 to 16, further comprising: a branch valve provided in the treatment instrument erecting device; and a switching valve for switching an open / close state between the suction conduit connected to the suction device. mirror.

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