JPWO2019155795A1 - Endoscope - Google Patents

Abstract

Provided is an endoscope capable of improving the cleanability of the endoscope while easily attaching and detaching the base end of the wire to the standing operation mechanism. A movable member (96) exposed to the outside of the operation unit (22) and interlocked with the operation of the standing operation lever (20), and an exposed arrangement of the movable member (96) outside the operation unit (22). A sleeve (156) rotatably supported by (22) and a bottomed recess (163) provided on the movable member (96) and facing the operating portion (22) are formed, and the recess (163) is formed. An O-ring arranged between a first bearing portion (162) that accommodates the sleeve (156) and covers the sleeve (156), and an outer peripheral surface of the sleeve (156) and an inner peripheral surface of the recess (163). (158), a wire (60) whose tip side is connected to an upright stand (30) and whose base end side is connected to a movable member (96), and a movable member (96) provided at the base end of the wire (60). A mounting member (98) that is detachably engaged with the wheel is provided.

Description

The present invention relates to an endoscope, and particularly relates to an endoscope provided with a treatment tool stand at the tip of an insertion portion to change the direction in which the treatment tool is derived.

In an endoscope, various treatment tools are introduced from a treatment tool introduction port provided in a hand operation unit (hereinafter referred to as "operation unit"), and the treatment tool is opened to a tip member of an insertion portion. It is taken out from the tool outlet and used for treatment. For example, in a duodenal endoscope, a treatment tool such as forceps or a contrast tube is used, and in an ultrasonic endoscope, a treatment tool such as a puncture needle is used. In such a treatment tool, it is necessary to change the direction in which the treatment tool is derived from the treatment tool outlet in order to treat a desired position in the subject. For this reason, the tip member is provided with a treatment tool standing table (hereinafter referred to as "standing table"), and the operation unit is provided with a treatment tool standing position that changes the posture of the standing table between the standing position and the lying position. A mechanism is provided.

As a treatment tool standing mechanism, a wire traction type mechanism in which the tip end portion of a wire (also referred to as a forceps raising wire) is directly attached to a standing base is known (see Patent Document 1). In this mechanism, the base end side of the wire is connected to the standing operation lever (also referred to as forceps raising lever) provided in the operation unit, and the standing table is rotated by pushing and pulling the wire with the standing operation lever. It is rotated around an axis to change its posture between an upright position and a prone position.

More specifically, the operation unit of Cited Document 1 is provided with a grip unit for holding the operation unit by hand and an angle knob. In this operation portion, a wire opening is provided below the grip portion, and a drive shaft opening is provided in the grip portion. The base end of the wire is led out from the wire opening, and the drive shaft opening is used. The tip of the drive shaft moved by the forceps raising lever is derived. The tip of the drive shaft and the base end of the wire are detachably connected to the connector, and a protective cover covering the connector is detachably provided on the operation unit.

On the other hand, Patent Document 2 discloses an endoscope in which a base end of a cable cord is derived from a base end of a control handle and a collet is connected to the base end of the cable cord. The collet is fastened to the nut and is moved in the front-rear direction by the operating lever.

Japanese Unexamined Patent Publication No. 6-315458 European Patent No. 1759626

However, the endoscope of Patent Document 1 has a configuration in which a connector for connecting a drive shaft, which is an upright operation mechanism, and a base end of a wire is housed in a narrow interior of an operation unit. There is a problem that the operation of attaching / detaching the base end of the wire becomes complicated.

Further, the endoscope of Patent Document 1 has a problem that the operation unit becomes large by the amount that the connector is housed inside the operation unit.

On the other hand, in the endoscope of Patent Document 2, the cable cord is led out to the outside of the control handle, and the tip of the cable cord is detachably attached to the collet and the nut, but the attachment / detachment operation is complicated.

In addition, when the endoscope is used for various examinations or treatments, the entire endoscope is also cleaned. At this time, in the endoscope of Patent Document 2, it is necessary to clean the tip, collet and nut of the cable cord exposed to the outside of the control handle, but the tip of the cable cord, collet and nut are small parts. Therefore, there is a problem that it takes a considerable amount of time and effort to clean such a small part.

As described above, in any of the conventional techniques, a technique capable of improving the cleanability of the endoscope while easily attaching and detaching the base end of the wire to the standing operation mechanism is still sufficient. I couldn't say it.

The present invention has been made in view of such circumstances, and provides an endoscope capable of improving the cleanability of the endoscope while easily attaching and detaching the base end of the wire to the standing operation mechanism. The purpose is.

In order to achieve the object of the present invention, the endoscope of the present invention is provided at the operation portion provided with the operation member, the insertion portion provided on the tip side of the operation portion, and the tip portion of the insertion portion. A movable member that is exposed outside the operating tool stand and the operating unit and operates in conjunction with the operation of the operating member, and is exposed and arranged outside the operating unit to rotatably support the movable member on the operating unit. A first shaft portion and a first bearing portion provided on one end side of a movable member. A bottomed recess is formed on an inner surface facing the operation portion, and the recess accommodates the first shaft portion. By doing so, the first bearing portion that covers the first shaft portion, the seal member arranged between the outer peripheral surface of the first shaft portion and the inner peripheral surface of the concave portion of the first bearing portion, and the tip side are A standing operation wire that is connected to the treatment tool standing table, the base end side is connected to the movable member, and is pushed and pulled according to the movement of the movable member to operate the treatment tool standing table, and is provided at the base end of the standing operation wire. It is provided with a mounting member that is detachably engaged with the movable member.

In one embodiment of the present invention, the first shaft portion is preferably a shaft portion that transmits the operation of the operation portion to the movable member.

One embodiment of the present invention is a second bearing portion provided on the other end side of the movable member, and has a through hole from an inner surface facing the operating portion to an outer surface opposite to the inner surface. The second bearing portion, the second shaft portion that is inserted into the through hole and fixed to the operation portion, and the second bearing portion is pivotally supported by the operation portion via the through hole, and the outer surface side of the through hole. It is preferable to have a closing member that closes the opening.

In one embodiment of the present invention, it is preferable that one of the movable member and the mounting member is provided with an engaging hole, and the other is provided with an engaging portion that is detachably engaged with the engaging hole.

In one embodiment of the present invention, it is preferable that the engaging portion is provided with an elastically deformed portion that elastically deforms and engages with the engaging hole.

In one embodiment of the present invention, the elastically deformable portion is formed with a pair of elastically deformable claws that engage with or disengage from the engagement hole and the engagement portion. It is preferable to displace the pair of claws in a direction close to each other by elastic deformation.

In one embodiment of the present invention, the engaging portion has a tubular portion to be inserted into the engaging hole, and the elastically deformed portion is composed of a slit portion provided at the tip of the tubular portion, and has a tubular shape. When the tip of the portion is inserted into the engaging hole, it is preferable that the split portion is configured so that the diameter can be reduced by elastic deformation.

In one embodiment of the present invention, the engaging hole has a narrow portion having a first width and a wide portion having a second width larger than the first width, and the engaging portion has a first width or less. It is preferable to have a shaft portion having an outer diameter and a diameter-expanded portion provided at the tip of the shaft portion and having an outer diameter larger than the first width and smaller than the second width.

In one embodiment of the present invention, the engaging hole has a narrow portion having a first width and a wide portion having a second width larger than the first width, and the engaging portion has a first width or less. It has a shaft portion having an outer diameter and a diameter-expanded portion that is provided at the tip of the shaft portion and has an outer diameter larger than the second width and is formed with a plurality of split grooves to be an elastically deformed portion. When the enlarged diameter portion is inserted into the wide portion, it is preferable that the enlarged diameter portion is elastically deformed by a plurality of split grooves so that the diameter can be reduced.

In one embodiment of the present invention, the engaging hole is a frictional resistor that imparts frictional resistance to the shaft portion by contacting the outer peripheral surface of the shaft portion when moving the shaft portion between the narrow portion and the wide portion. It is preferable to have a portion.

In one embodiment of the present invention, one of the movable member and the mounting member is provided with a cylindrical body extending in a direction perpendicular to the axial direction of the standing operation wire, and the other is rotatable around the outer circumference of the cylindrical body. It is preferable that an annular body to be engaged is provided and a rotation restricting stopper for restricting the relative rotation between the cylindrical body and the annular body is provided.

In one embodiment of the present invention, the mounting member includes a shaft portion extending in a direction perpendicular to the axial direction of the standing operation wire, a connecting portion extending in a direction perpendicular to the longitudinal axis of the shaft portion, and a connecting portion. A locking portion provided on the opposite side of the shaft portion is provided, and the movable member is centered on a mounting hole into which the shaft portion is inserted and a longitudinal axis of the shaft portion with the shaft portion inserted in the mounting hole. It is preferable to provide a locking groove portion in which the locking portion is locked when the shaft portion is rotated.

In one embodiment of the present invention, the connecting portion has a wire groove portion along the extending direction of the connecting portion, and the connecting portion has a wire groove portion for accommodating the standing operation wire when the locking portion is locked in the locking groove portion. It is preferable to be provided.

In one embodiment of the present invention, the mounting member includes a pair of claws, an urging member that urges the pair of claws in a direction of approaching each other, and a pair of claws against the urging force of the urging member. It is preferable that the movable member is provided with a pair of mounting holes for mounting a pair of claws by the urging force of the urging member, and a knob portion for moving the claws away from each other is provided.

In one embodiment of the present invention, one of the movable member and the mounting member is provided with a fixed shaft portion, and the other is provided with a fixing hole into which the fixed shaft portion is fitted. It is preferable that one of them is provided with a retaining hole and the other is provided with a retaining portion fitted into the retaining hole.

In one embodiment of the present invention, the mounting member includes a shaft portion extending in the axial direction of the standing operation wire, a small diameter portion formed in the central portion in the longitudinal axial direction of the shaft portion, and one end portion of the shaft portion. A first locking portion provided in the shaft portion and a second locking portion provided at the other end of the shaft portion are provided, and the movable member has a fixing groove for accommodating the shaft portion and a shaft in the fixing groove. When the portion is housed, it comes into contact with the first locking portion and the second locking portion to restrict the movement of the shaft portion in the longitudinal axis direction, and a retaining portion formed in the fixing groove and formed in the fixing groove. It is preferable to provide a convex pressing portion that comes into contact with the central portion of the shaft portion when the portion is accommodated.

In one embodiment of the present invention, the retaining portion includes a pair of retaining pieces arranged with a gap along the longitudinal direction of the shaft portion, and an urging member for urging the pair of retaining pieces in a direction approaching each other. , And the shaft portion is preferably accommodated in the fixing groove against the urging force of the urging member through the gap between the pair of retaining pieces.

According to the present invention, it is possible to provide an endoscope capable of improving the cleanability of the endoscope while easily attaching and detaching the base end of the wire to the standing operation mechanism.

Configuration diagram of an endoscope system including an endoscope according to an embodiment Perspective view of the tip member in which the stand is located in the inverted position Perspective view of the tip member in which the standing table is located in the standing position Enlarged perspective view of the stand Cross-sectional view of the main part showing the attachment structure of the stand to the tip member A perspective view illustrating the other side surface facing one side surface of the operation unit shown in FIG. Enlarged perspective view in which the engaging portion is housed in the housing portion via the engaging guide portion. Operation explanatory view in which the engaging portion is guided by the engaging guiding portion and accommodated in the accommodating portion Configuration diagram showing the overall configuration of the standing operation mechanism Side view of the standing operation mechanism of FIG. Enlarged perspective view of the movable member attached to the operation unit as viewed from one direction. Enlarged perspective view of the movable member attached to the operation unit as seen from the other direction side. Sectional drawing of the operation part along the line 13-13 of FIG. Cross-sectional view showing the state before attaching the movable member to the operation unit Cross-sectional view showing a state immediately before accommodating the sleeve in the recess of the first bearing portion. Cross-sectional view showing a state in which the sleeve is housed in the recess of the first bearing portion. Cross-sectional view showing a state in which a spacer is arranged between the second bearing portion and the operation portion. Perspective view of the mounting structure of the first embodiment A perspective view of the mounting structure shown in FIG. 18 as viewed from the left side. Perspective view of wire assembly Front view of mounting member Perspective view of the extension portion showing the introduction port and the movable member Explanatory drawing in which the wire is inserted from the introduction port with the engaging member at the top. Explanatory drawing of the mounting member with the tip of the wire connected to the upright stand Explanatory drawing in which a mounting member is connected to a movable member Explanatory drawing which showed the modification of the mounting structure of 1st Embodiment Sectional sectional view of the main part of the mounting structure shown in FIG. Perspective view of the mounting structure of the second embodiment Assembly perspective view of the mounting structure shown in FIG. 28 Sectional sectional view of the main part of the mounting structure shown in FIG. Top view showing the size of the engaging portion with respect to the engaging hole Assembly perspective view of the mounting structure of the third embodiment Top view of the engaging hole showing the size of the engaging portion with respect to the engaging hole Perspective view of the mounting structure of the fourth embodiment Assembly perspective view of the mounting structure shown in FIG. 34 Perspective view of the mounting structure of the fifth embodiment Assembly perspective view of the mounting structure shown in FIG. 36 Assembly perspective view of the mounting structure shown in FIG. 36 Perspective view of the mounting structure of the sixth embodiment Assembly perspective view of the mounting structure shown in FIG. 39 Perspective view of the mounting structure of the seventh embodiment Assembly perspective view of the mounting structure shown in FIG. 41 Assembly perspective view of the mounting structure shown in FIG. 41 Perspective view of the mounting structure of the eighth embodiment Assembly perspective view of the mounting structure shown in FIG. FIG. 4 is a cross-sectional view showing a main configuration of the mounting structure shown in FIG. Explanatory drawing showing a state in which a shaft portion is broken by a pressing portion

Hereinafter, preferred embodiments of the endoscope according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a block diagram of an endoscope system 12 including an endoscope 10 according to an embodiment of the present invention. The endoscope system 12 includes an endoscope 10, a processor device 14, a light source device 16, and a display 18. Note that FIG. 1 also shows a treatment tool 56 used in the endoscope system 12.

The endoscope 10 includes an operation unit 22 provided with a standing operation lever 20 which is an operation member, and an insertion unit 24 provided on the tip end side of the operation unit 22.

Further, as shown in the perspective views of FIGS. 2 and 3 showing the configuration of the tip portion 26 of the insertion portion 24, the tip portion 26 of the insertion portion 24 is provided with a tip member 28, and the tip member 28 is erected, which will be described later. The base 30 is attached. FIG. 2 is a perspective view of the tip member 28 in which the standing table 30 is located in the inverted position, and FIG. 3 is a perspective view of the tip member 28 in which the standing table 30 is located in the standing position.

In the following description, the Z (+) direction of FIGS. 1 to 3 is referred to as an upward direction, and the Z (−) direction is referred to as a downward direction. Further, the X (+) direction is referred to as the right direction, and the X (−) direction is referred to as the left direction. Further, the Y (+) direction is referred to as the tip end side direction, and the Y (−) direction is referred to as the proximal end side direction.

Returning to FIG. 1, the operation unit 22 extends from the operation unit main body 32 provided with the standing operation lever 20, the grip portion 34 connected to the operation unit main body 32, and the grip portion 34 toward the tip side. It has an extension portion 36, and the base end portion of the insertion portion 24 is connected to the tip end side of the extension portion 36 via a break prevention pipe 38. The grip portion 34 is a portion gripped by the operator when operating the endoscope 10.

The extension portion 36 is extended from the tip end portion of the grip portion 34 toward the tip end side in order to provide the movable member 96 (see FIG. 6) connected to the standing operation mechanism 120 (FIGS. 9 and 10). It is a part of the non-grasping area. Specifically, the region A from the tip end 44A of the convex mount portion 44 of the treatment tool introduction port 42 provided in the grip portion 34 to the base end portion 38A of the breakage prevention pipe 38 corresponds to the extension portion 36. To do. An annular flange 40 is provided in the region A of the extension portion 36. The standing operation mechanism 120 and the movable member 96 will be described later.

The operation unit main body 32 of the operation unit 22 is provided with a universal cord 46. A light source connector 50 is provided on the tip side of the universal cord 46, and the light source connector 50 is connected to the light source device 16. Further, the light source connector 50 is provided with an electric connector 48 branched, and the electric connector 48 is connected to the processor device 14.

The insertion portion 24 is configured by connecting the tip portion 26, the curved portion 52, and the soft portion 54 from the tip end side to the base end side.

The following contents are provided inside the insertion portion 24. That is, the operation of changing the lead-out direction of the treatment tool channel 58 that guides the tip portion 56A of the treatment tool 56 of FIG. 1 to the tip member 28 of FIG. 2 and the tip portion 56A of the treatment tool 56 that is led out from the tip member 28. An upright operation wire 60 (hereinafter referred to as a wire 60), an upright operation wire channel 62 (hereinafter referred to as a wire channel 62) for guiding the tip of the wire 60 to the tip member 28, and a light source device of FIG. A light guide (not shown) that guides the illumination light supplied from 16 to the tip member 28 in FIG. 2, an air supply / water supply tube (not shown), an angle wire (not shown), a signal cable (not shown), and the like. The contents of are provided.

Returning to FIG. 1, the operation unit 22 is configured to have a substantially cylindrical shape as a whole, and has a cylindrical axis B along the Y (+) −Y (−) direction. A pair of angle knobs 64, 64 for bending the curved portion 52 are arranged on the side surface 22A on one side of the vertical cross section of the operating portion 22 including the cylindrical shaft B. The pair of angle knobs 64, 64 are provided coaxially and rotatably.

The curved portion 52 has a structure in which a plurality of angle rings (not shown) are rotatably connected to each other. The curved portion 52 is formed by covering the outer periphery of the structure with a tubular net body woven with a metal wire, and covering the outer peripheral surface of the net body with a rubber tubular outer skin. For example, four angle wires (not shown) are arranged from the curved portion 52 configured in this way to the angle knobs 64 and 64, and these angle wires can be transferred by rotating the angle knobs 64 and 64. The curved portion 52 is curved up, down, left and right by the push-pull operation.

The flexible portion 54 has a spiral tube (not shown) formed by spirally winding a thin metal strip having elasticity. The flexible portion 54 is formed by covering the outside of the spiral tube with a tubular net body woven with a metal wire, and covering the outer peripheral surface of the net body with a tubular outer skin made of resin.

An air supply / water supply button 66 and a suction button 68 are arranged side by side on the operation unit main body 32. By operating the air supply / water supply button 66, air and water can be ejected from the air supply / water supply nozzle 70 provided on the tip member 28 of FIG. Further, by operating the suction button 68 of FIG. 1, body fluid such as blood can be sucked from the suction port that also serves as the treatment tool outlet 72 provided on the tip member 28 of FIG.

Further, the grip portion 34 of the operation portion 22 of FIG. 1 is provided with a treatment tool introduction port 42 for introducing the treatment tool 56. The treatment tool 56 introduced from the treatment tool introduction port 42 with the tip portion 56A at the head is inserted into the treatment tool channel 58 of FIG. 2 inserted through the insertion portion 24, and the treatment tool guide provided on the tip member 28. It is derived to the outside from the exit 72.

Further, on one side surface 22A of the operation unit 22 of FIG. 1, a standing operation lever 20 is rotatably provided coaxially with the angle knobs 64 and 64. The standing operation lever 20 is rotationally operated by the operator who grips the grip portion 34. When the standing operation lever 20 is rotated, the wire 60 of FIG. 2 is pushed and pulled by the standing operation mechanism 120 (see FIGS. 9 and 10) that operates in conjunction with the rotation operation of the standing operation lever 20. The posture of the standing table 30 connected to the tip side of the 60 is changed between the standing position in FIG. 3 and the lodging position in FIG. The above-mentioned standing operation mechanism 120 will be described later.

The endoscope 10 of the embodiment configured as described above is a lateral endoscope used as a duodenal endoscope, and the insertion portion 24 is inserted into the subject through the oral cavity. The insertion portion 24 is inserted from the esophagus through the stomach to the duodenum, and a predetermined examination or treatment is performed.

In the embodiment, as the treatment tool 56, a biopsy forceps having a cup capable of collecting biological tissue at the tip portion 56A has been exemplified, but the present invention is not limited thereto. For example, as another treatment tool, a treatment tool such as a contrast tube or a knife for EST (Endoscopic Sphincterotomy) is used.

Next, the tip portion 26 will be described.

As shown in FIG. 2, the tip portion 26 is composed of a tip member 28 and a cap member 76 that is detachably attached to the tip member 28. The cap member 76 is formed in a substantially tubular shape with the tip side sealed, and a substantially rectangular opening window 76A is formed on a part of the outer peripheral surface thereof. When the cap member 76 is attached to the tip member 28, the opening window 76A of the cap member 76 communicates with the treatment tool outlet 72 of the tip member 28. As a result, the tip portion 56A of the treatment tool 56 derived from the treatment tool outlet 72 is led out from the opening window 76A.

The cap member 76 is made of an elastic material, for example, a rubber material such as fluororubber or silicon rubber, or a resin material such as polysulfone or polycarbonate, and is formed on the tip member 28 on the base end side thereof. It has an engaging portion (not shown) that engages with a groove (not shown), and is attached to the tip member 28 by engaging this engaging portion with the groove of the tip member 28. Further, when the treatment of the endoscope 10 is completed, the cap member 76 is removed from the tip member 28 and washed and disinfected, or is disposed of as disposable.

The tip member 28 is made of a metal material having corrosion resistance. Further, the tip member 28 is integrally provided with a partition wall 78 projecting toward the tip side and a partition wall 80 facing the partition wall 78. An upright stand accommodating chamber 82 for accommodating the upright stand 30 is formed between the partition wall 78 and the partition wall 80. A treatment tool outlet 72 for leading the treatment tool 56 to the outside is formed on the base end side of the standing table accommodating chamber 82, and the tip end portion of the treatment tool channel 58 is connected to the treatment tool outlet 72.

The treatment tool channel 58 is inserted into the insertion portion 24 of FIG. The base end portion of the treatment tool channel 58 is connected to the tip pipe 202 of the branch pipe 200 (see FIG. 10) provided inside the operation unit 22.

The branch pipe 200 has a well-known structure, and the base end portion is branched into two pipe lines 204 and 206, and a treatment tool introduction port 42 is formed at the base end of one pipe line 204. Therefore, the tip 56A of the treatment tool 56 introduced from the treatment tool introduction port 42 to the treatment tool channel 58 via the conduit 204 is inserted into the treatment tool channel 58 and stands up from the treatment tool outlet 72 of FIG. It is led out to the pedestal storage chamber 82. Then, the leading end portion 56A of the treatment tool 56 led out to the upright stand accommodation chamber 82 changes its out-out direction according to the posture between the upright position and the lodging position of the upright stand 30 arranged in the upright stand accommodation chamber 82. Will be done. Further, the tip of the suction pipe 208 for sucking body fluid such as blood is connected to the base end of the other pipe line 206 of the branch pipe 200 shown in FIG.

FIG. 4 is an enlarged perspective view of the standing table 30. As shown in FIG. 4, a guide surface 30A is provided on the upper surface of the standing table 30. Along the guide surface 30A, the tip portion 56A of the treatment tool 56 of FIG. 1 is led out from the opening window 76A of the cap member 76 of FIG.

As shown in FIG. 4, the standing table 30 is provided with rotating shaft portions 84 and 86 on both side surfaces of the base portion 30B. The axial direction of the rotating shaft portions 84 and 86 is set in the X (+) −X (−) direction of FIG. 2 when the upright stand 30 is attached to the tip member 28.

FIG. 5 is a cross-sectional view of a main part showing the attachment structure of the upright stand 30 to the tip member 28. As shown in FIG. 5, the shafts of the rotating shaft portions 84 and 86 are coaxially arranged via the base portion 30B of the upright stand 30, and the rotating shaft portion 84 is rotatable to the concave bearing portion 78A of the partition wall 78. It is fitted, and the rotating shaft portion 86 is rotatably fitted to the concave bearing portion 80A of the partition wall 80. Further, the rotating shaft portions 84 and 86 are mounted on the bearing portions 78A and 80A with a predetermined backlash amount x in the axial direction of the rotating shaft portions 84 and 86, respectively. When the rotating shaft portions 84 and 86 are offset to one side by using this backlash amount x, a part of one of the bearing portions 78A and 80A is exposed, and a brush can be easily applied to the exposed portion. Since it can be inserted into, the cleanability of the bearing portions 78A and 80A is improved.

As shown in FIGS. 2 and 3, an optical system accommodating chamber 88 is provided inside the partition wall 78. An illumination window 90 and an observation window 92 are arranged adjacent to each other in the upper part of the optical system accommodation chamber 88, and an air supply / water supply nozzle 70 directed to the observation window 92 is provided on the tip member 28. The air supply water supply nozzle 70 is connected to an air supply water supply device (not shown) via an air supply water supply tube (not shown) inserted through the insertion unit 24, and the air supply water supply button 66 of the operation unit 22 shown in FIG. By operating the above, air or water is ejected from the air supply / water supply nozzle 70 toward the observation window 92. As a result, the observation window 92 is cleaned.

Further, an illumination unit (not shown) and a photographing unit (not shown) are housed inside the optical system storage chamber 88. The illumination unit includes an illumination lens (not shown) installed inside the illumination window 90, and a light guide (not shown) arranged so that the tip surface faces the illumination lens. The light guide is arranged on the universal cord 46 from the insertion portion 24 of the endoscope 10 via the operation portion 22, and its base end is connected to the light source device 16 via the light source connector 50. As a result, the irradiation light from the light source device 16 is transmitted via the light guide and is irradiated to the outside through the illumination window 90.

The above-mentioned photographing unit includes a photographing optical system (not shown) arranged inside the observation window 92 and a CMOS (complementary metal oxide semiconductor) type or CCD (charge coupled device) type image pickup device (not shown). ing. The image pickup device is connected to the processor device 14 via a signal cable (not shown) inserted through the insertion section 24 of FIG. The image pickup signal of the subject image obtained by the photographing unit is output to the processor device 14 via the signal cable, image-processed, and then displayed as the subject image on the display 18.

Although overlapping with the above description, first, the wire 60 will be described. As shown in FIGS. 2 and 3, the tip of the wire 60 is arranged outside the outlet 74 and connected to the upright stand 30. Further, as shown in FIG. 6, the base end of the wire 60 is arranged outside the introduction port 94 provided in the operation unit 22 and is connected to the movable member 96.

FIG. 6 is a perspective view of the operation unit 22, and is a perspective view showing the other side surface 22B facing one side surface 22A of the operation unit 22 shown in FIG.

According to FIG. 6, the introduction port 94 is provided in the extension portion 36 of the operation portion 22. A mounting member 98 is provided at the base end of the wire 60 arranged outside from the introduction port 94, and the mounting member 98 is detachably mounted in an engaging hole (described later) of the movable member 96. ..

The operation unit 22 is provided with a movable member 96. The movable member 96 is arranged so as to be exposed to the outside of the operation unit 22, and operates in conjunction with the operation of the standing operation lever 20 by the standing operation mechanism 120 (see FIGS. 9 and 10). Further, in the embodiment, the movable member 96 is rotatably arranged on the other side surface 22B facing the one side surface 22A provided with the angle knobs 64 and 64, but the movable member 96 with respect to the operation unit 22 The arrangement position is not limited, and it may be rotatably arranged at a predetermined position of the operation unit 22. Further, the movable member 96 is a driven lever that rotates in conjunction with the rotation operation of the standing operation lever 20.

The standing operation mechanism 120 is a mechanism that is arranged inside the operation unit 22 and operates the movable member 96 in conjunction with the operation of the standing operation lever 20. Therefore, when the standing operation lever 20 is operated, the movable member 96 operates via the standing operation mechanism 120, and the wire 60 (see FIG. 2) connected to the movable member 96 is pushed and pulled.

Next, a connecting structure in which the tip of the wire 60 is detachably connected to the upright stand 30 will be described.

Returning to FIGS. 2 and 3, the wire 60 is provided with an engaging member 100 at the tip end portion. Further, the standing table 30 is provided with a storage groove 102 that is detachably engaged with the engaging member 100 and has an opening 104 formed on the X (+) direction side. As a result, the engaging member 100 provided at the tip of the wire 60 is accommodated in the accommodating groove 102 through the opening 104, so that the tip of the wire 60 is connected to the upright stand 30.

In the embodiment, the engaging member 100 is a sphere, and the accommodating groove 102 is a spherical recess for accommodating the spherical engaging member 100. The shapes of the engaging member 100 and the accommodating groove 102 are not limited to the above shapes, but by making the engaging member 100 a sphere and the accommodating groove 102 a spherical recess, the wire 60 is pushed and pulled. The sliding resistance between the engaging member 100 and the accommodating groove 102 caused by the operation can be reduced. Therefore, the push-pull operation of the wire 60 can be smoothly performed.

Further, the tip member 28 is provided with an engaging guide portion 106 which is connected to the accommodating groove 102 at the upright position of FIG. The engaging guide portion 106 has a function of guiding the engaging member 100 led out from the outlet 74 to the opening 104 of the accommodating groove 102. The outlet 74 is provided on the tip member 28, and is communicated with the introduction port 94 (see FIG. 6) via a wire channel 62 provided inside the insertion portion 24.

According to the endoscope 10 having such an engaging guide portion 106, when the wire 60 is introduced from the introduction port 94 and the engaging member 100 is introduced first, the engaging member 100 becomes the wire channel 62 (FIG. 2). It is inserted through the outlet (see) and is derived to the outside from the outlet 74. Then, the engaging member 100 is guided toward the opening 104 of the accommodating groove 102 of the standing table 30 by the engaging guiding portion 106 by the continuous introduction operation of the wire 60, and engages with the accommodating groove 102 from the opening 104. Will be done. As a result, according to the endoscope 10 of the embodiment, the engaging member 100 of the wire 60 can be engaged with the accommodating groove 102 of the upright stand 30 only by the introduction operation of the wire 60.

FIG. 7 is an enlarged perspective view in which the engaging member 100 is engaged with the accommodating groove 102 via the engaging guiding portion 106. FIG. 8 is an explanatory view showing the operation of the engaging member 100 being guided by the engaging guide portion 106 and being engaged with the accommodating groove 102 over time.

As shown in FIGS. 7 and 8, the engaging guide portion 106 guides the engaging member 100 led out from the outlet 74 to the opening 104 of the accommodating groove 102, and the engaging guide path 108 and the inside of the engaging guide path 108. A deformation generating portion 110, which is continuously provided in the opening 104 of the accommodating groove 102, is provided. The deformation generating portion 110 comes into contact with the engaging member 100 that advances in the Y (+) direction toward the opening 104 in the engaging guide path 108, and guides the engaging member 100 in the Y (+) direction while X (X). +) Guide in the direction.

As a result, the tip of the wire 60 is elastically deformed in the direction (X (+) direction) gradually away from the opening 104 as the engaging member 100 approaches the opening 104 along the engaging taxiway 108. When the engaging member 100 traveling in the engaging taxiway 108 passes through the deformation generating portion 110, it moves in the X (−) direction by the restoring force of the wire 60 and is engaged with the accommodating groove 102 through the opening 104. To.

The engaging taxiway 108 is formed by cutting out a part of the peripheral surface 28A of the tip member 28 in a concave shape, and gradually inclines in the X (+) direction from the outlet 74 in the Y (+) direction. It is a face. A deformation generating portion 110 is formed on the tip end side of the engaging taxiway 108.

Further, the engaging guide portion 106 is formed with a groove 112 that allows the tip end side of the wire 60 to be immersed and released when the engaging member 100 is engaged with the accommodating groove 102. Further, a groove 114 is also formed on the base end side of the accommodating groove 102 of the upright stand 30 so that when the engaging member 100 is engaged with the accommodating groove 102, the tip end side of the wire 60 is immersed and released. The width dimension of the groove 112 in the direction orthogonal to the paper surface of FIG. 8 is larger than the diameter of the wire 60, and the engaging member 100 passes through the deformation generating portion 110 so that the engaging member 100 does not immerse in the groove 112. Smaller than the diameter. Further, the width dimension of the groove 114 in the direction orthogonal to the paper surface of FIG. 8 is larger than the diameter of the wire 60, and the engaging member 100 engaged with the accommodating groove 102 is prevented from coming off in the Y (−) direction. , Smaller than the diameter of the engaging member 100.

The engaging guide portion 106 is in a form suitable for engaging the engaging member 100 with the accommodating groove 102 while the standing table 30 is positioned in the standing position. That is, as shown in FIG. 7, the accommodating groove 102 is arranged at a position facing the outlet 74 with the standing table 30 located at the standing position. Therefore, by advancing the engaging member 100 straight from the outlet 74, the engaging member 100 can be engaged with the accommodating groove 102 of the standing table 30 located at the standing position via the engaging guiding portion 106.

Next, a disengagement structure for disengaging the engaging member 100 of the wire 60 engaged with the accommodating groove 102 of the standing table 30 from the accommodating groove 102 will be described.

The tip member 28 is provided with a detachment guide surface 116, and the detachment guide surface 116 is provided on the upper surface of the partition wall 80 (see FIG. 2). The detachment guide surface 116 is a guide surface (see FIGS. 2 and 3) inclined in the Z (−) direction toward the X (+) direction. Further, the detaching guide surface 116 is provided from the inside of the accommodating groove 102 when the wire 60 is further pushed in while the engaging member 100 is engaged with the accommodating groove 102 and the standing table 30 is located at the inverted position. It functions as a surface for guiding the wire 60 in the direction in which the engaging member 100 is disengaged from the opening 104.

According to the detachment structure configured in this way, the mounting member (described later) provided at the base end of the wire 60 is removed from the engaging hole (described later) of the movable member 96, and then the introduction port of the extension portion 36 is introduced. The wire 60 is pushed in from 94 to position the standing table 30 from the standing position in FIG. 3 to the lodging position in FIG. After that, when the wire 60 is further pushed in, the disengaging guide surface 116 of the tip member 28 guides the wire 60 from the inside of the accommodating groove 102 to the outside of the opening 104 in the X (+) direction in which the engaging member 100 disengages. To. As a result, the engaging member 100 is easily disengaged from the inside of the accommodating groove 102 to the outside of the opening 104 by the restoring force of the wire 60.

Next, the standing operation mechanism 120 will be described.

FIG. 9 is a configuration diagram showing the overall configuration of the standing operation mechanism 120. Further, FIG. 10 is a side view of the standing operation mechanism 120 of FIG. In FIGS. 9 and 10, the outer case (not shown) of the operation unit 22 is omitted, and the standing operation mechanism 120 arranged inside the operation unit 22 is shown.

As shown in FIGS. 9 and 10, the standing operation mechanism 120 functions as a power transmission mechanism that connects the standing operation lever 20 and the movable member 96 and transmits the rotational operation of the standing operation lever 20 to the movable member 96.

The standing operation mechanism 120 converts the rotational movement of the standing operation lever 20 into a linear motion, the first conversion mechanism 124, the wire 126 linearly moved by the first conversion mechanism 124, and the linear motion of the wire 126 into a rotary motion. A second conversion mechanism 128 that rotates the movable member 96 is provided.

The first conversion mechanism 124 includes a crank member 130 whose base end is connected to the standing operation lever 20, a first slider 132 whose base end is connected to the tip end of the crank member 130, and a base end to the tip end of the first slider 132. A second slider 134, to which is connected, is provided.

In the wire 126, the base end of the wire 126 is connected to the tip of the second slider 134, and the tip of the wire 126 is connected to the second conversion mechanism 128.

According to the first conversion mechanism 124 configured as described above, when the standing operation lever 20 is rotated, the crank member 130, the first slider 132, and the second slider 134 are moved along the cylindrical axis B in conjunction with the rotation operation. Make a linear motion. As a result, the wire 126 linearly moves along the cylindrical axis B, and the linear motion is transmitted to the second conversion mechanism 128.

The second conversion mechanism 128 includes a lever 136, a first gear 138, a second gear 140, a third gear 142, and a fourth gear 144, and these gears constitute a reduction mechanism.

The lever 136 is rotatably supported by the bracket 146 via a shaft portion 148, and the tip of the wire 126 is connected to the lever 136. Therefore, the lever 136 is rotated about the shaft portion 148 by the linear motion of the wire 126.

The first gear 138 is provided integrally with the lever 136 and is rotated around the shaft portion 148. The second gear 140 is meshed with the first gear 138 and is rotatably supported by the bracket 146 via the shaft portion 150. The third gear 142 is provided integrally with the second gear 140 and coaxially with the second gear 140.

The fourth gear 144 is meshed with the third gear 142. Further, a rotating shaft 152 (see FIG. 13) is fixed to the fourth gear 144 coaxially with the fourth gear 144. The base end side of the rotating shaft 152 is rotatably supported by the bracket 146, and the tip end side of the rotating shaft 152 is arranged outside the operation unit 22. The rotating shaft 152 is provided coaxially with the disk-shaped rotating body 154, and the rotating body 154 is connected to the rotating shaft 152 and rotated together with the rotating shaft 152. Further, the rotating body 154 is rotatably supported by the opening 23 of the operating portion 22 via the O-ring 166. The opening 23 is sealed by the O-ring 166, and the watertightness of the operating portion 22 is ensured.

A sleeve 156 is formed on the side surface of the rotating body 154. The sleeve 156 is provided coaxially with the rotating body 154, and the first bearing portion 162 of the movable member 96 is connected to the outer peripheral surface of the sleeve 156 via an O-ring 158.

In the embodiment, the sleeve 156 described above corresponds to the first shaft portion of the present invention that rotatably supports the movable member 96 to the operation portion 22, and the O-ring 158 corresponds to the seal member of the present invention. To do. The connection structure between the first bearing portion 162 and the sleeve 156 will be described later.

According to the second conversion mechanism 128 (see FIGS. 9 and 10) configured as described above, when the linear motion of the wire 126 is transmitted to the lever 136, the first gear 138 is rotationally operated together with the lever 136, and the first gear 138 is rotated. The rotation operation of the 1st gear 138 is transmitted to the 4th gear 144 via the 2nd gear 140 and the 3rd gear 142, and the 4th gear 144 is rotated. When the fourth gear 144 is rotated, the rotating body 154 is rotated together with the rotating shaft 152 (see FIG. 13). As a result, the movable member 96 connected to the sleeve 156 of the rotating body 154 via the O-ring 158 is rotated about the axis of the sleeve 155.

Further, according to the standing operation mechanism 120 (see FIGS. 9 and 10), the rotational operation of the standing operation lever 20 is decelerated and transmitted to the movable member 96 by the second conversion mechanism 128 including the deceleration mechanism. That is, the rotation angle of the first bearing portion 162 of the movable member 96 is smaller than the rotation angle of the lever 136 that is operated by operating the standing operation lever 20. As a result, the force required to operate the standing operation lever 20 can be made smaller, and the undulating posture control of the standing table 30 by the standing operation lever 20 becomes easy.

Further, in the embodiment, the wire 126 is used as a component constituting the standing operation mechanism 120. By using the wire 126, there are the following advantages. That is, when the linear motion of the second slider 134 is converted into the rotary motion of the lever 136, the wire 126 can move in a curved line (slack), so that it is not necessary to install a link mechanism and the space limitation is reduced. Further, when the second slider 134 and the lever 136 are connected by a link mechanism, the force escape area in the standing operation mechanism 120 is reduced, but by using the wire 126, the wire 126 is loosened to release the force. Therefore, the load applied to the standing operation mechanism 120 can be reduced.

Next, a mounting structure for mounting the movable member 96 on the operation unit 22 will be described with reference to the drawings.

FIG. 11 is an enlarged perspective view of the movable member 96 attached to the operation unit 22 as viewed from one direction, and is a perspective view particularly showing the first bearing portion 162 provided on one end side of the movable member 96. Is. Further, FIG. 12 is an enlarged perspective view of the movable member 96 attached to the operating portion 22 as viewed from the other direction side, and particularly shows a second bearing portion 164 provided on the other end side of the movable member 96. It is a perspective view. FIG. 13 is a cross-sectional view of the operation unit 22 along the line 13-13 of FIG.

As shown in FIGS. 11 to 13, the movable member 96 is provided on the flat plate-shaped beam portion 160, the first bearing portion 162 provided on one end side of the beam portion 160, and the other end side of the beam portion 160. It is provided with a second bearing portion 164, and is configured in a U shape as a whole.

Here, the connection structure between the first bearing portion 162 and the sleeve 156 described above will be described.

As shown in FIG. 13, the first bearing portion 162 is formed with a bottomed recess 163 on the inner side surface 162A facing the operating portion 22. The recess 163 has an opening on the side facing the operating portion 22, and the sleeve 156 is housed in the recess 163 through the opening. As a result, the sleeve 156 is covered by the first bearing portion 162 without being exposed to the outside. Further, the O-ring 158 described above is arranged between the outer peripheral surface of the sleeve 156 and the inner peripheral surface of the recess 163. As a result, the watertightness of the internal space of the recess 163 in which the sleeve 156 is arranged is ensured.

For the connecting structure of such an embodiment, for example, a through hole is formed in the first bearing portion 162, and the rotating shaft 152 is passed through the through hole to form the rotating shaft 152 and the first bearing portion 162. In the case of a connecting structure connected by screws (not shown), the inner peripheral surface of the through hole and the screws are exposed to the outside. Therefore, it takes time and effort to clean the inner peripheral surface of the through hole and the screw.

On the other hand, in the connecting structure of the embodiment, since the rotating shaft 152, the sleeve 156, and the recess 163 are not exposed to the outside, the cleanability of the first bearing portion 162 can be improved.

Therefore, according to the connection structure of the embodiment, the cleanability of the endoscope 10 can be improved as compared with the conventional endoscope. The outer surface 162B of the first bearing portion 162 is preferably a smooth surface in order to improve cleanability.

Next, the connection structure between the second bearing portion 164 and the operation portion 22 will be described.

The second bearing portion 164 has a through hole 165 from the inner side surface 164A facing the operating portion 22 to the outer side surface 164B opposite to the inner side surface 164A. A driven shaft 168 configured as a screw is inserted into the through hole 165, and the driven shaft 168 is fastened and fixed to a screw hole 21 formed in the operating portion 22. As a result, the second bearing portion 164 is pivotally supported by the operating portion 22 via the driven shaft 168.

In the second bearing portion 164, a cap member 167 made of an elastic member such as rubber is attached to the opening on the outer surface 164B side of the through hole 165, and the through hole 165 is closed by the cap member 167. .. Even in such a connecting structure, since the through hole 165 and the driven shaft 168 are not exposed to the outside, the cleanability of the endoscope 10 is improved.

In the embodiment, the driven shaft 168 corresponds to the second shaft portion of the present invention, and the cap member 167 corresponds to the closing member of the present invention. Further, a tubular spacer 169 is inserted between the second bearing portion 164 and the operating portion 22, and the driven shaft 168 is inserted into the spacer 169 and fixed to the operating portion 22. The shaft cores of the sleeve 156 on the first bearing portion 162 side and the driven shaft 168 on the second bearing portion 164 side are set coaxially.

Next, the attachment procedure for attaching the movable member 96 to the operation unit 22 will be described with reference to FIGS. 14 to 17.

FIG. 14 is a cross-sectional view of the operation unit 22 showing a state immediately before attaching the movable member 96 to the operation unit 22. FIG. 14 shows that the O-ring 158 is mounted on the outer peripheral surface of the sleeve 156.

FIG. 15 is a cross-sectional view of the operating portion 22 showing a state immediately before accommodating the sleeve 156 in the recess 163 of the first bearing portion 162 of the movable member 96. FIG. 15 shows that the inner surface 164A of the second bearing portion 164 is in contact with the operating portion 22, and the opening of the recess 163 faces the sleeve 156 at that position. That is, it is shown that the inner side surface 164A of the second bearing portion 164 functions as a positioning surface for accommodating the sleeve 156 in the recess 163.

FIG. 16 is a cross-sectional view of the operating portion 22 showing a state in which the sleeve 156 is housed in the recess 163 of the first bearing portion 162. That is, the sleeve 156 can be accommodated in the recess 163 only by pushing the first bearing portion 162 shown in FIG. 15 toward the sleeve 156. This completes the mounting work for attaching the first bearing portion 162 to the operation portion 22 side. In the state of FIG. 16, the watertightness of the recess 163 is ensured by the O-ring 158. Further, since the first bearing portion 162 is pushed toward the sleeve 156, the inner side surface 164A of the second bearing portion 164 is separated from the operation portion 22.

FIG. 17 is a cross-sectional view of the operating portion 22 showing a state in which the spacer 169 is arranged in the gap between the inner side surface 164A of the second bearing portion 164 and the operating portion 22.

After arranging the spacer 169 as shown in FIG. 17, the driven shaft 168 of the through hole 165 of the second bearing portion 164 is inserted as shown in FIG. After that, the driven shaft 168 is fastened to the screw hole 21 of the operating portion 22, and then the through hole 165 is closed by the cap member 167. This completes the mounting work for attaching the second bearing portion 164 to the operating portion 22 side, and the mounting work for mounting the movable member 96 to the operating portion 22 is completed.

Although overlapping with the above description, the movable member 96 attached to the operation portion 22 does not have a through hole for inserting a screw in the first bearing portion 162, and the second bearing portion 164 has no through hole. Has a through hole 165 for inserting the driven shaft 168, and the through hole 165 is sealed by a cap member 167. Therefore, the cleanability of the movable member 96 is improved, and as a result, the cleanability of the endoscope 10 is improved.

Next, in the above-mentioned endoscope 10 with improved detergency, a plurality of embodiments shown below will be illustrated with reference to a mounting structure for mounting the base end of the wire 60 to the movable member 96.

18 to 22 show the mounting structure 170 of the first embodiment.

FIG. 18 is a perspective view of the mounting structure 170 as viewed from the other side surface 22B of the operation unit 22. Further, FIG. 19 is a perspective view of the mounting structure 170 shown in FIG. 18 as viewed from the left side. Further, FIG. 20 is a perspective view of a wire assembly 172 including a wire 60 and a mounting member 98 provided at a base end of the wire 60. FIG. 21 is a front view of the mounting member 98, and FIG. 22 is a perspective view of an extension portion 36 having an introduction port 94 and a movable member 96.

As shown in FIG. 22, the movable member 96 is provided with an engaging hole 174 into which the mounting member 98 (see FIG. 21) is detachably engaged. The engaging hole 174 is formed along the longitudinal direction of the beam portion 160 of the movable member 96, and is formed by a through hole penetrating the front and back surfaces of the beam portion 160. A pair of engaging portions 176 and 176 (see FIG. 21) of the mounting member 98 are detachably engaged with the engaging holes 174.

The mounting member 98 shown in FIG. 21 is a substantially triangular plate-like body, and a hole 180 to which the base end of the wire 60 is connected is formed in the core portion 178 of the central portion. The pair of engaging portions 176 and 176 of the mounting member 98 are provided on both sides of the core portion 178 via slit-shaped notches 182. Further, each of the pair of engaging portions 176 and 176 is formed with elastically deformed portions 184 that elastically deform and engage with the engaging holes 174. Further, the elastically deformed portions 184 and 184 are formed with claw portions 186 that are locked to the edge portions 175 and 175 (see FIG. 22) on both sides of the engaging hole 174 in the longitudinal direction. When the engaging holes 174 and the engaging portions 176 and 176 are engaged with or disengaged, the claw portions 186 and 186 are displaced in a direction approaching each other due to the elastic deformation of the elastic deformation portions 184 and 184.

Next, a mounting procedure for mounting the base end of the wire 60 on the movable member 96 by the mounting structure 170 of the first embodiment will be described.

First, before attaching the base end of the wire 60 to the movable member 96, the work of connecting the tip of the wire 60 to the upright stand 30 is performed.

FIG. 23 shows a diagram in which the wire 60 is inserted from the introduction port 94 with the engaging member 100 (see FIG. 20) at the head.

That is, when the wire 60 is introduced from the introduction port 94 and the engaging member 100 is introduced first in the state where the standing table 30 is positioned in the standing position (see FIG. 3), as shown in FIG. 23, the engaging member 100 is introduced. Is led out from the outlet 74 via the wire channel 62 (see FIG. 2). Then, the engaging member 100 is guided toward the opening 104 of the accommodating groove 102 of the standing table 30 by the engaging guiding portion 106 of FIG. 3 by the continuous introduction operation of the wire 60, and the engaging member 100 is guided from the opening 104 toward the accommodating groove 102. Engage in. By this work, the tip of the wire 60 can be connected to the upright stand 30.

FIG. 24 shows the posture of the mounting member 98 in a state where the tip of the wire 60 is connected to the upright stand 30. In this posture, the mounting members 98 are engaged by abutting the lower tapered portions 187 and 187 of the claw portions 186 and 186 (see FIG. 21) against the edge portions 175 and 175 (see FIG. 23) on both sides of the engaging hole 174. Push it into the joint hole 174. By this pushing operation, the distance between the claws 186 and 186 is narrowed, and the claws 186 and 186 are locked to the edges 175 and 175 on both sides of the engaging hole 174. As a result, the mounting member 98 is connected to the movable member 96 as shown in the connection diagram shown in FIG. 25.

Therefore, according to the mounting structure 170 of the first embodiment, the base end of the wire 60 can be moved into the movable member 96 with one touch only by pushing the claws 186 and 186 of the mounting member 98 into the engaging hole 174 of the movable member 96. Can be attached.

After that, when the standing operation lever 20 of FIG. 1 is operated, as shown in FIG. 19, the movable member 96 operates in the direction of arrow C or the direction of arrow D. Then, in conjunction with the operation of the movable member 96, the wire 60 is pushed and pulled by the movable member 96 via the mounting member 98. As a result, the standing table 30 is rotated between the standing position and the lying position.

By the way, the endoscope 10 is used for various examinations or treatments. After that, when cleaning the endoscope 10, the following work is performed.

First, the cap member 76 shown in FIG. 2 is removed from the tip member 28. Next, the engaging portions 176 and 176 of the mounting member 98 are pinched by fingers, the distance between the claw portions 186 and 186 is narrowed so as to be smaller than the longitudinal dimension of the engaging hole 174, and then the engaging hole. Pull out the claws 186 and 186 from 174.

Therefore, according to the mounting structure 170 of the first embodiment, the base end of the wire 60 can be removed from the movable member 96 only by pulling out the claws 186 and 186 from the engaging hole 174.

Next, the wire 60 is pushed in from the introduction port 94 of the extension portion 36 to position the standing table 30 from the standing position of FIG. 3 to the inverted position of FIG. After that, the wire 60 is further pushed in to separate the engaging member 100 from the accommodating groove 102 to the outside of the opening 104. By this work, the tip of the wire 60 can be removed from the upright stand 30. Next, the wire 60 is pulled out from the introduction port 94 to empty the wire channel 62. After that, the tip member 28, the upright stand 30, and the wire channel 62 are cleaned.

As described above, according to the mounting structure 170 of the first embodiment, the wire 60 can be formed by simply pushing the claw portions 186 and 186 of the mounting member 98 into the engaging holes 174 of the movable member 96 outside the operating portion 22. The base end can be attached to the movable member 96. Further, the base end of the wire 60 can be removed from the movable member 96 only by pulling out the engaging portions 176 and 176 of the mounting member 98 from the engaging hole 174 of the movable member 96 outside the operating portion 22.

Therefore, according to the mounting structure 170 of the first embodiment, the base end of the wire 60 can be easily attached to and detached from the standing operation mechanism 120 (see FIGS. 9 and 10) as compared with the conventional endoscope. Can be done.

Further, in the endoscope 10 of the embodiment, as shown in FIG. 13, the cleaning property of the endoscope 10 is improved by the attachment structure of the movable member 96 to the operation unit 22.

As described above, according to the endoscope 10 of the embodiment having the mounting structure 170 of the first embodiment, the cleaning property of the endoscope 10 can be easily performed while the base end of the wire 60 can be easily attached to and detached from the standing operation mechanism 120. Can be improved.

In the mounting structure 170 of the first embodiment, the engaging hole 174 is formed in the movable member 96 and the engaging portion 176 is formed in the mounting member 98, but the engaging portion 176 is formed in the movable member 96 and mounted. Engagement holes 174 may be formed in the member 98. That is, one of the movable member 96 and the mounting member 98 may be provided with an engaging hole 174, and the other may be provided with an engaging portion 176 that is detachably engaged with the engaging hole 174. Further, the claw portion 186 may be provided not on the longitudinal direction side of the beam portion 160 of the movable member 96 but on the lateral side in the lateral direction. Furthermore, the engaging holes 174 may be two engaging holes formed so as to be separated from each other in the longitudinal direction of the beam portion 160. Further, the engaging hole 174 may be a concave non-penetrating hole that does not penetrate the front and back surfaces of the beam portion 160.

Further, in the above-mentioned example, in order to empty the wire channel 62, the wire 60 is pulled out from the introduction port 94, but the present invention is not limited to this. For example, if the base end of the wire 60 is removed from the mounting member 98 prior to pulling out the wire 60 from the wire channel 62, the wire 60 can be pulled out from the outlet 74.

FIG. 26 is a perspective view showing a mounting structure 170A of a modified example of the mounting structure 170 shown in FIGS. 18 to 25.

In explaining the mounting structure 170A shown in FIG. 26, members that are the same as or similar to the mounting structure 170 shown in FIGS. 18 to 25 will be described with the same reference numerals. The same shall apply to the mounting structures of other embodiments described below.

The engaging hole 174A formed in the movable member 96 is a circular through hole. Further, the engaging portion 176A of the mounting member 98A has a tubular portion 177 inserted into the engaging hole 174A. Further, the elastically deformed portion of the mounting member 98A is composed of a grinding portion 184A provided at the tip end portion of the tubular portion 177, and a claw portion 186A is formed on the outer peripheral surface of the grinding portion 184A.

According to the mounting structure 170A configured in this way, when the slit portion 184A of the tubular portion 177 is inserted into the engagement hole 174A, the diameter of the slit portion 184A is reduced by elastic deformation. As a result, the ground portion 184A passes through the engaging hole 174A, and when the ground portion 184A passes through the engaging hole 174A, the ground portion 184A returns to the original diameter. As a result, as shown in the cross-sectional view of the mounting structure 170A shown in FIG. 27, the claw portion 186A of the ground portion 184A engages with the back surface 160A of the beam portion 160 of the movable member 96, so that the mounting member 98A is attached to the movable member 96. Be connected.

Therefore, according to the mounting structure 170A, the base end of the wire 60 can be mounted on the movable member 96 only by inserting the engaging portion 176A into the engaging hole 174A. Further, the base end of the wire 60 can be removed from the movable member 96 only by pinching the ground portion 184A with a finger to reduce the diameter of the ground portion 184A and then pulling out the ground portion 184A from the engaging hole 174A. Can be done.

Therefore, according to the mounting structure 170A, it is possible to easily attach / detach the base end of the wire 60 to the standing operation mechanism 120 (see FIGS. 9 and 10) as in the mounting structure 170 of the first embodiment.

As described above, according to the endoscope 10 of the embodiment having the mounting structure 170A, it is possible to improve the cleanability of the endoscope 10 while easily attaching and detaching the base end of the wire 60 to the standing operation mechanism 120. it can.

Next, the mounting structure 210 of the second embodiment will be described with reference to FIGS. 28 to 30.

28 is a perspective view of the mounting structure 210, FIG. 29 is an assembled perspective view of the mounting structure 210, and FIG. 30 is a cross-sectional view of a main part of the mounting structure 210.

The mounting structure 210 is composed of a movable member 96 and a mounting member 212.

As shown in FIG. 29, the beam portion 160 of the movable member 96 is provided with an engaging portion 214, and the mounting member 212 is provided with an engaging portion 216 that is detachably engaged with the engaging hole 214. Further, the mounting member 212 is composed of a knob portion 218 and a shaft portion 220 constituting the engaging portion 216, and the base end of the wire 60 is connected to the hole portion 222 formed in the shaft portion 220.

Here, the shape of the engaging hole 214 will be described. FIG. 31 is a plan view of the engaging hole 214, showing the shape of the engaging hole 214 superimposed on the shape of the enlarged diameter portion 228 (see FIG. 29) of the engaging portion 216.

The engaging hole 214 has a narrow portion 224 having a diameter a and a wide portion 226 having a diameter b larger than the diameter a. In the embodiment, the first width of the present invention is described by the diameter a, and the second width of the present invention is shown by the diameter b. As shown in FIG. 31, the line CL connecting the center of the narrow portion 224 and the center of the wide portion 226 is a curve along an arc centered on the introduction port 94 (not shown). The arrangement of the narrow portion 224 and the wide portion 226 facilitates the operation when the mounting member 212 is engaged with the engagement hole 214. This will be described later.

The engaging portion 216 of the mounting member 212 shown in FIG. 29 has a shaft portion 220 having an outer diameter c equal to or less than the diameter a in FIG. 31 and a diameter-expanded portion 228 provided at the tip of the shaft portion 220. By reducing the difference between the diameter a and the outer diameter c, the shaft portion 220 can be stably held by the narrow portion 224. The enlarged diameter portion 228 has an outer diameter d larger than the diameter a and smaller than the diameter b. The enlarged diameter portion 228 functions as a retaining member for restricting the shaft portion 220 from separating from the narrow portion 224 in the axial direction of the shaft portion 220.

The engaging hole 214 has a frictional resistance portion 230 between the narrow portion 224 and the wide portion 226. The frictional resistance portion 230 is provided at the opening entrance portion of the narrow portion 224, and is formed so as to protrude from the wall surfaces of the engaging holes 214 facing each other. The frictional resistance portion 230 functions as a regulating member that regulates the shaft portion 220 inserted into the narrow portion 224 from inadvertently sliding from the narrow portion 224 to the wide portion 226.

According to the mounting structure 210 configured in this way, first, the engaging portion 216 is inserted into the wide portion 226. Next, the mounting member 212 is slid and moved from the wide portion 226 toward the narrow portion 224. At that time, as shown in FIG. 28, since the mounting member 212 is fixed to the wire 60, the mounting member 212 moves along the curved line CL centered on the introduction port 94. As described above, since the centers of the narrow portion 224 and the wide portion 226 are on the curved line CL, the mounting member 212 smoothly slides from the wide portion 226 toward the narrow portion 224. Further, when the engaging portion 216 is slid from the wide portion 226 toward the narrow portion 224, the shaft portion 220 comes into contact with the friction resistance portion 230, but the engaging portion 216 is widened by the force of sliding the engaging portion 216. It can be engaged with the narrow portion 224 without any problem. As a result, the mounting member 212 is connected to the movable member 96.

Therefore, according to the mounting structure 210 of the second embodiment, the base end of the wire 60 can be mounted on the movable member 96 only by engaging the engaging portion 216 with the narrow portion 224.

Further, in a state where the engaging portion 216 is engaged with the narrow portion 224, the diameter expanding portion 228 can prevent the shaft portion 220 from being disengaged from the narrow portion 224 in the axial direction of the shaft portion 220. .. Further, when the shaft portion 220 abuts on the frictional resistance portion 230, it is possible to prevent the engaging portion 216 from sliding from the narrow portion 224 toward the wide portion 226. As a result, the mounting member 212 can be securely connected to the movable member 96.

On the other hand, when the base end of the wire 60 is removed from the movable member 96 at the time of cleaning the endoscope 10, the engaging portion 216 is slid from the narrow portion 224 to the wide portion 226, and the engaging portion 226 to the engaging portion 226. Pull out 216.

Therefore, according to the mounting structure 210 of the second embodiment, the base end of the wire 60 can be removed from the movable member 96 only by pulling out the engaging portion 216 from the wide portion 226.

Therefore, according to the mounting structure 210 of the second embodiment, the attachment / detachment operation of the base end of the wire 60 to the standing operation mechanism 120 (see FIGS. 9 and 10) can be easily performed as in the mounting structure 170 of the first embodiment. It can be carried out.

As described above, according to the endoscope 10 of the embodiment having the mounting structure 210 of the second embodiment, the cleaning property of the endoscope 10 can be easily performed while attaching / detaching the base end of the wire 60 to the standing operation mechanism 120. Can be improved.

Although FIG. 31 illustrates an engaging hole 214 having a frictional resistance portion 230, the engaging hole 214 may not have a frictional resistance portion 230.

Next, the mounting structure 232 of the third embodiment will be described with reference to FIGS. 32 and 33.

FIG. 32 is an assembly perspective view of the mounting structure 232. FIG. 33 is a plan view of the engaging hole 214 formed in the movable member 96, and shows the shape of the engaging hole 214 superimposed on the shape of the enlarged diameter portion 238 of the engaging portion 236 of the mounting member 234. There is. In explaining the mounting structure 232, the same or similar members as the mounting structure 210 shown in FIGS. 28 to 31 will be described with the same reference numerals.

As shown in FIG. 33, the engagement hole 214 has a narrow portion 224 having a diameter a and a wide portion 226 having a diameter b larger than the diameter a. The narrow portion 224 and the wide portion 226 are in a positional relationship as in FIG. 31.

Further, the engaging portion 236 of the mounting member 234 shown in FIG. 32 is provided at the shaft portion 220 having an outer diameter c having a diameter a or less and at the tip of the shaft portion 220, and has an outer diameter f larger than the diameter b. It has an enlarged diameter portion 238 in which a plurality of (for example, four) split grooves 237 (see FIG. 32) are formed. When the enlarged diameter portion 238 is inserted into the wide portion 226, the enlarged diameter portion 238 is elastically deformed by the plurality of split grooves 237 to reduce the diameter.

According to the mounting structure 232 configured in this way, when the enlarged diameter portion 238 is fitted to the wide portion 226 of the engaging hole 214, the enlarged diameter portion 238 is elastically deformed by the plurality of split grooves 237 to reduce the diameter. .. As a result, the enlarged diameter portion 238 passes through the wide portion 226, and when the enlarged diameter portion 238 passes through the wide portion 226, the enlarged diameter portion 238 returns to the original diameter. As a result, the enlarged diameter portion 238 engages with the back surface 160A of the beam portion 160 of the movable member 96, so that the mounting member 234 is prevented from coming off from the movable member 96.

After that, the engaging portion 236 is slid toward the narrow portion 224 to engage the engaging portion 236 with the narrow portion 224. As a result, the mounting member 234 is connected to the movable member 96.

Therefore, according to the mounting structure 232 of the third embodiment, the base end of the wire 60 can be mounted on the movable member 96 only by engaging the engaging portion 236 with the narrow portion 224.

Further, in a state where the engaging portion 236 is engaged with the narrow portion 224, the diameter expanding portion 238 can prevent the shaft portion 220 from being disengaged from the narrow portion 224 in the axial direction of the shaft portion 220. .. Further, when the shaft portion 220 abuts on the frictional resistance portion 230, it is possible to prevent the engaging portion 236 from sliding from the narrow portion 224 toward the wide portion 226. As a result, the mounting member 234 can be securely connected to the movable member 96.

On the other hand, when the base end of the wire 60 is removed from the movable member 96 when cleaning the endoscope 10, the engaging portion 236 of the mounting member 234 is slid from the narrow portion 224 to the wide portion 226, and then the diameter is expanded. The portion 238 is pinched with a finger, the diameter-expanded portion 238 is reduced in diameter, and the diameter-expanded portion 238 is pulled out from the wide portion 226.

Therefore, according to the mounting structure 232 of the third embodiment, the base end of the wire 60 can be removed from the movable member 96 only by pulling out the enlarged diameter portion 238 from the wide portion 226.

Therefore, according to the mounting structure 232 of the third embodiment, the attachment / detachment operation of the base end of the wire 60 to the standing operation mechanism 120 (see FIGS. 9 and 10) can be easily performed as in the mounting structure 170 of the first embodiment. It can be carried out.

As described above, according to the endoscope 10 of the embodiment having the mounting structure 232 of the third embodiment, the cleaning property of the endoscope 10 can be easily performed while attaching / detaching the base end of the wire 60 to the standing operation mechanism 120. Can be improved.

Although the engaging hole 214 having the frictional resistance portion 230 is illustrated in FIG. 33, the engaging hole 214 may not have the frictional resistance portion 230.

Next, the mounting structure 240 of the fourth embodiment will be described with reference to FIGS. 34 and 35.

FIG. 34 is a perspective view of the mounting structure 240, and FIG. 35 is an assembled perspective view of the mounting structure 210.

The mounting structure 240 is composed of a movable member 242 and a mounting member 244.

The movable member 242 is composed of a first bearing portion 162, a second bearing portion 164, and a cylindrical body 246 that connects the first bearing portion 162 and the second bearing portion 164. The cylindrical body 246 extends in a direction (X (+) −X (−) direction) perpendicular to the axial direction of the wire 60. Further, in FIGS. 34 and 35, U-shaped grooves 248 and 250 forming a rotation regulation stopper are formed at the upper ends of the first bearing portion 162 and the second bearing portion 164. The movable member 242 is also attached to the operation unit 22 with the same attachment structure as the movable member 96 shown in FIG.

On the other hand, the base end of the wire 60 is connected to the mounting member 244. The mounting member 244 is composed of an annular body 252 that rotatably engages with the outer circumference of the cylindrical body 246, and pins 254 and 256 that form a rotation restricting stopper together with the grooves 248 and 250. The annular body 252 has a C-shaped cross section orthogonal to the longitudinal direction, and the slit 253 formed in the longitudinal direction is pressed against the cylindrical body 246 to increase the diameter and engage with the cylindrical body 246. ..

According to the mounting structure 240 configured in this way, the slit 253 of the annular body 252 of the mounting member 244 is pressed against the cylindrical body 246 of the movable member 242 to engage the annular body 252 with the cylindrical body 246.

Therefore, according to the mounting structure 240 of the fourth embodiment, the base end of the wire 60 can be mounted on the movable member 242 only by engaging the annular body 252 with the cylindrical body 246.

Further, when the annular body 252 engages with the cylindrical body 246, the pin 254 is engaged with the groove 248 and the pin 256 is engaged with the groove 250 at the same time, so that the wire 60 is pushed and pulled by the movable member 242. Occasionally, it is possible to prevent the annular body 252 from rotating relative to the cylindrical body 246. As a result, the wire 60 can be smoothly pushed and pulled.

On the other hand, when the base end of the wire 60 is removed from the movable member 242 when cleaning the endoscope 10, the mounting member 244 is pulled in the direction of removing the pins 254 and 256 from the grooves 248 and 250, and the annular body 252 becomes a cylinder. Pushed by the body 246 to expand the diameter, the annular body 252 separates from the cylindrical body 246.

Therefore, according to the mounting structure 240 of the fourth embodiment, the base end of the wire 60 can be removed from the movable member 96 only by pulling the mounting member 244.

Therefore, according to the mounting structure 240 of the fourth embodiment, the attachment / detachment operation of the base end of the wire 60 to the standing operation mechanism 120 (see FIGS. 9 and 10) can be easily performed as in the mounting structure 170 of the first embodiment. It can be carried out.

As described above, according to the endoscope 10 of the embodiment having the mounting structure 240 of the fourth embodiment, the cleaning property of the endoscope 10 can be easily performed while attaching / detaching the base end of the wire 60 to the standing operation mechanism 120. Can be improved.

In the above embodiment, the movable member 242 is provided with the cylindrical body 246, and the mounting member 244 is provided with the annular body 252. However, one of the movable member 242 and the mounting member 244 is provided with the cylindrical body 246, and the other. The annular body 252 may be provided on the surface.

Next, the mounting structure 270 of the fifth embodiment will be described with reference to FIGS. 36 to 38.

36 is a perspective view of the mounting structure 270, and FIGS. 37 and 38 are an assembled perspective view of the mounting structure 270.

As shown in FIG. 37, the mounting structure 270 is composed of a movable member 96 and a mounting member 272.

The mounting member 272 includes a shaft portion 274 extending in a direction perpendicular to the axial direction of the wire 60, a connecting portion 276 extending in a direction h perpendicular to the longitudinal axis g of the shaft portion 274, and a shaft of the connecting portion 276. A locking portion 278 provided on the opposite side of the portion 274 is provided.

The beam portion 160 of the movable member 96 is provided with a mounting hole 280 into which the shaft portion 274 is inserted and a locking groove portion 282 in which the locking portion 278 is locked. The mounting hole 280 is formed along the axial direction of the wire 60, and the length j of the mounting hole 280 along the axial direction is the foot of the diameter k of the shaft portion 274 and the length m of the connecting portion 276. It is set longer than the length you set.

The locking portion 278 is locked as shown in FIG. 36 when the shaft portion 274 is rotated around the longitudinal axis g of the shaft portion 274 in the state of FIG. 38 in which the shaft portion 274 is inserted deep into the mounting hole 280. It is locked to the groove 282. Further, as shown in FIG. 37, a notch 284 penetrating the mounting hole 280 is formed in the beam portion 160. As shown in FIG. 36, when the locking portion 278 is locked in the locking groove portion 282, the connecting portion 276 is accommodated in the mounting hole 280 via the notch portion 284.

Further, as shown in FIG. 37, the connecting portion 276 is provided with a wire groove portion 286 along the direction h which is the extending direction of the connecting portion 276. The wire groove portion 286 accommodates the wire 60 when the locking portion 278 is locked to the locking groove portion 282.

According to the mounting structure 270 configured in this way, the shaft portion 274 is inserted into the mounting hole 280, the shaft portion 274 is rotated around the longitudinal axis g of the shaft portion 274, and the locking portion 278 is locked in the locking groove portion. Lock to 282.

Therefore, according to the mounting structure 270 of the fifth embodiment, the base end of the wire 60 can be mounted on the movable member 96 only by inserting the shaft portion 274 into the mounting hole 280 and rotating the shaft portion 274.

On the other hand, when removing the base end of the wire 60 from the movable member 96 when cleaning the endoscope 10, the locking portion 278 is picked up with a finger and removed from the locking groove portion 282, and the shaft portion 274 is pulled out from the mounting hole 280. ..

Therefore, according to the mounting structure 270 of the fifth embodiment, the base end of the wire 60 is removed from the movable member 96 only by removing the locking portion 278 from the locking groove portion 282 and pulling out the shaft portion 274 from the mounting hole 280. be able to.

Therefore, according to the mounting structure 270 of the fifth embodiment, the attachment / detachment operation of the base end of the wire 60 to the standing operation mechanism 120 (see FIGS. 9 and 10) can be easily performed as in the mounting structure 170 of the first embodiment. It can be carried out.

As described above, according to the endoscope 10 of the embodiment having the mounting structure 270 of the fifth embodiment, the cleaning property of the endoscope 10 can be easily performed while attaching / detaching the base end of the wire 60 to the standing operation mechanism 120. Can be improved.

Next, the mounting structure 290 of the sixth embodiment will be described with reference to FIGS. 39 and 40.

FIG. 39 is a perspective view of the mounting structure 290, and FIG. 40 is an assembled perspective view of the mounting structure 290.

As shown in FIG. 40, the mounting structure 290 is composed of a movable member 96 and a mounting member 292.

The mounting member 292 includes a pair of claws 294A and 294B, a spring 296 that urges the pair of claws 294A and 294B in the direction of approaching each other, and a pair of claws 294A and 294B against the urging force of the spring 296. A pair of knobs 298A and 298B are provided to move the wheels away from each other. The spring 296 corresponds to the urging member of the present invention.

The claw portion 294A and the knob portion 298A are integrally formed, and similarly, the claw portion 294B and the knob portion 298B are integrally formed and are pivotally supported by each other via a shaft 300. The base end of the wire 60 is fixed to the shaft 300.

The beam portion 160 of the movable member 96 is provided with a pair of mounting holes 302A and 302B to which a pair of claw portions 294A and 294B are mounted by the urging force of the spring 296.

According to the mounting structure 290 configured as described above, the pair of knob portions 298A and 298B are pinched to widen the distance between the pair of claw portions 294A and 294B, and the pair of claw portions 294A and 294B are provided with the pair of mounting holes 302A. Insert it into 302B and release your finger from the pair of claws 294A and 294B. As a result, the pair of knob portions 298A and 298B are locked to the pair of mounting holes 302A and 302B by the urging force of the spring 296.

Therefore, according to the mounting structure 290 of the sixth embodiment, the base end of the wire 60 is mounted on the movable member 96 only by locking the pair of knob portions 298A and 298B to the pair of mounting holes 302A and 302B. Can be done.

On the other hand, when the base end of the wire 60 is removed from the movable member 96 when cleaning the endoscope 10, the pair of knob portions 298A and 298B are pinched to widen the distance between the pair of claw portions 294A and 294B, and the pair is paired. The claws 294A and 294B are removed from the pair of mounting holes 302A and 302B.

Therefore, according to the mounting structure 290 of the sixth embodiment, the base end of the wire 60 can be removed from the movable member 96 only by removing the pair of knob portions 298A and 298B from the pair of mounting holes 302A and 302B. ..

Therefore, according to the mounting structure 290 of the sixth embodiment, the attachment / detachment operation of the base end of the wire 60 to the standing operation mechanism 120 (see FIGS. 9 and 10) can be easily performed as in the mounting structure 170 of the first embodiment. It can be carried out.

As described above, according to the endoscope 10 of the embodiment having the mounting structure 290 of the sixth embodiment, the cleaning property of the endoscope 10 can be easily performed while attaching / detaching the base end of the wire 60 to the standing operation mechanism 120. Can be improved.

Next, the mounting structure 310 of the seventh embodiment will be described with reference to FIGS. 41 to 43.

41 is a perspective view of the mounting structure 310, and FIGS. 42 and 43 are an assembly perspective view of the mounting structure 3100.

As shown in FIG. 42, the mounting structure 310 includes a movable member 96 and a mounting member 312.

A fixed shaft portion 316 is provided on the beam portion 160 of the movable member 96. Further, the mounting member 312 is formed in a plate shape, and is provided with a fixing hole 318 fitted to the fixed shaft portion 316.

Further, the mounting member 312 is provided with a retaining hole 320, and the movable member 96 is provided with a retaining portion 322 fitted into the retaining hole 320. The retaining portion 322 is formed in a shaft shape. Further, the retaining portion 322 is integrally provided with a soft resin sheet 324 such as polypropylene, and is connected to the beam portion 160 via the resin sheet 324.

According to the mounting structure 310 configured in this way, the fixing hole 318 is fitted into the fixed shaft portion 316 as shown in FIG. 43, and the retaining portion 322 is fitted into the retaining hole 320 as shown in FIG. 41.

Therefore, according to the mounting structure 310 of the seventh embodiment, the base end of the wire 60 can be formed only by fitting the fixing hole 318 into the fixed shaft portion 316 and fitting the retaining portion 322 into the retaining hole 320. It can be attached to the movable member 96.

On the other hand, when the base end of the wire 60 is removed from the movable member 96 when cleaning the endoscope 10, the retaining portion 322 is pulled out from the retaining hole 320, and the fixing hole 318 is pulled out from the fixed shaft portion 316.

Therefore, according to the mounting structure 310 of the seventh embodiment, the base end of the wire 60 can be moved by simply pulling out the retaining portion 322 from the retaining hole 320 and then pulling out the fixing hole 318 from the fixed shaft portion 316. It can be removed from 96.

Therefore, according to the mounting structure 310 of the seventh embodiment, the attachment / detachment operation of the base end of the wire 60 to the standing operation mechanism 120 (see FIGS. 9 and 10) can be easily performed as in the mounting structure 170 of the first embodiment. It can be carried out.

As described above, according to the endoscope 10 of the embodiment having the mounting structure 310 of the seventh embodiment, the cleaning property of the endoscope 10 can be easily performed while attaching / detaching the base end of the wire 60 to the standing operation mechanism 120. Can be improved.

In the mounting structure 310, the movable member 96 is provided with a fixed shaft portion 316 and the mounting member 312 is provided with a fixing hole 318, but the present invention is not limited to this, and the movable member 96 is provided with a fixing hole 318 and the mounting member 312 is provided with a fixing hole 318. A fixed shaft portion 316 may be provided.

Further, in the mounting structure 310, the mounting member 312 is provided with a retaining hole 320 and the movable member 96 is provided with a retaining portion 322, but the present invention is not limited to this, and the mounting member 312 is provided with a retaining portion 322 and the movable member is provided. The retaining hole 320 may be provided in 96.

Next, the mounting structure 330 of the eighth embodiment will be described with reference to FIGS. 44 and 47.

FIG. 44 is a perspective view of the mounting structure 330, and FIG. 45 is an assembled perspective view of the mounting structure 330. Further, FIG. 46 is a cross-sectional view showing a configuration of a main part of the mounting structure 330, and FIG. 47 is an explanatory view showing a state in which the shaft portion 334, which will be described later, is broken by the pressing portion 346.

As shown in FIG. 45, the mounting structure 310 includes a movable member 96 and a mounting member 332.

The mounting member 332 is provided at one end of a shaft portion 334 extending in the axial direction of the wire 60, a small diameter portion 336 formed in the central portion of the shaft portion 334 in the longitudinal axial direction, and a shaft portion 334. A first locking portion 338 and a second locking portion 340 provided at the other end of the shaft portion 334 are provided.

The first locking portion 338 has a stopper portion 338A having a diameter larger than the diameter of the shaft portion 334, and a knob portion 338B formed on the stopper portion 338A. Similarly, the second locking portion 340 also has a stopper portion 340A having a diameter larger than the diameter of the shaft portion 334 and a knob portion 340B formed on the stopper portion 340A.

The beam portion 160 of the movable member 96 has a fixing groove 342 for accommodating the shaft portion 334, and a stopper portion 338A and a second locking portion of the first locking portion 338 when the shaft portion 334 is accommodated in the fixing groove 342. A retaining portion 344 that is in contact with the stopper portion 340A of the 340 to regulate the movement of the shaft portion 334 in the longitudinal axis direction, and a shaft formed in the fixing groove 342 when the shaft portion 334 is accommodated in the fixing groove 342. A convex pressing portion 346 (see FIG. 46) that comes into contact with the central portion of the portion 334 is provided.

As shown in FIG. 46, the retaining portion 344 has a pair of retaining pieces 344A and 344A arranged with a gap along the longitudinal direction of the shaft portion 334 and a pair of retaining pieces 344A and 344A in a direction approaching each other. It has a pair of elastic members 344B and 344B that force. The elastic member 344B corresponds to the urging member of the present invention.

According to the mounting structure 330 configured in this way, the grip portion 338B and 340B are pinched with fingers, and the shaft portion 334 is urged by the elastic members 344B and 344B from the gap between the pair of retaining pieces 344A and 344A. It is housed in the fixing groove 342 against the above. As a result, the axial movement of the shaft portion 334 is restricted by the retaining portion 344, and the retaining portion 334 is prevented from coming off from the fixing groove 343 by the pair of retaining pieces 344A and 344A.

Therefore, according to the mounting structure 330 of the eighth embodiment, the base end of the wire 60 can be mounted on the movable member 96 only by accommodating the shaft portion 334 in the fixing groove 342.

On the other hand, when the base end of the wire 60 is removed from the movable member 96 when cleaning the endoscope 10, the knob portions 338B and 340B are pinched and the shaft portion 334 is pressed toward the fixing groove 342. As a result, the small diameter portion 336 is pressed against the pressing portion 346, the small diameter portion 336 is broken as shown in FIG. 47, and the shaft portion 334 is divided into two shaft portions 334A and 334A. After that, the two shaft portions 334A and 334A are pulled out from the fixing groove 342 in each axial direction.

Therefore, according to the mounting structure 330 of the eighth embodiment, the wire 60 is only required to divide the shaft portion 334 into two shaft portions 334A and 334A and pull out the two shaft portions 334A and 334A from the fixing groove 342. The base end of the can be removed from the movable member 96.

Therefore, according to the mounting structure 330 of the eighth embodiment, the attachment / detachment operation of the base end of the wire 60 to the standing operation mechanism 120 (see FIGS. 9 and 10) can be easily performed as in the mounting structure 170 of the first embodiment. It can be carried out.

As described above, according to the endoscope 10 of the embodiment having the mounting structure 330 of the eighth embodiment, the cleaning property of the endoscope 10 can be easily performed while the base end of the wire 60 can be easily attached to and detached from the standing operation mechanism 120. Can be improved.

Although a specific example of the attachment structure of the attachment member to the movable member of the present invention has been described by the above embodiment, the present invention is not limited to the above embodiment, and is the above if it is within the scope of the present invention. Various modifications and substitutions can be made to the embodiments of.

In the above embodiment, the duodenal endoscope has been described as an example of the endoscope 10, but if the endoscope is provided with a standing table at the tip of the insertion portion to adjust the drawing direction of the treatment tool, ultrasonic endoscopy is performed. The present invention can be applied to various endoscopes such as mirrors.

10 Endoscope 12 Endoscope system 14 Processor device 16 Light source device 18 Display 20 Standing operation lever 22 Operation unit 21 Screw hole 22A One side surface 22B The other side surface 23 Opening 24 Insertion part 26 Tip part 28 Tip member 28A Peripheral surface 30 Standing stand 30A Guide surface 30B Base 32 Operation part Main body 34 Gripping part 36 Extension part 38 Breaking prevention pipe 38A Base end part 40 Flange 42 Treatment tool introduction port 44 Mount part 44A Tip part 46 Universal cord 48 Electric connector 50 Light source connector 52 Curved part 54 Soft part 56 Treatment tool 56A Tip 58 Treatment tool channel 60 Wire 62 Wire channel 64 Angle knob 66 Air supply water supply button 68 Suction button 70 Air supply water supply nozzle 72 Treatment tool outlet 74 Outlet port 76 Cap member 76A Opening window 78 Partition 78A Bearing 80 Partition 80A Bearing 82 Standing stand accommodation 84 Rotating shaft 86 Rotating shaft 88 Optical system accommodation 90 Lighting window 92 Observation window 94 Introduction port 95 Valve body 96 Movable member 98 Mounting member 98A Mounting Member 100 Engagement member 102 Accommodating groove 104 Opening 106 Engagement guide part 108 Engagement guide path 110 Deformation generation part 112 Groove 114 Groove 116 Detachment guide surface 120 Standing operation mechanism 124 First conversion mechanism 126 Wire 128 Second conversion mechanism 130 Crank member 132 1st slider 134 2nd slider 136 Lever 138 1st gear 140 2nd gear 142 3rd gear 144 4th gear 146 Bracket 148 Shaft 150 Shaft 152 Rotating shaft 154 Rotating body 156 Sleeve 158 O-ring 160 Beam 160A Back surface 162 First bearing part 163 Recessed part 164 Second bearing part 165 Through hole 166 O-ring 167 ... Cap member 168 Driven shaft 169 Spacer 170 Mounting structure 170A Mounting structure 172 Wire assembly 174 Engagement hole 174A Engagement hole 175 Edge part 176 Engagement part 176A Engagement part 177 Cylindrical part 178 Core part 180 Hole part 182 Notch 182A Scratch part 184 Elastic deformation part 184A Slicing part 186 Claw part 186A Claw part 187 Tapered part 200 Branch pipe 202 Tip tube 204 Pipeline 206 Pipeline 208 Suction pipe 210 Mounting structure 212 Mounting member 214 Engaging hole 216 Engaging part 218 Knob part 220 Shaft part 222 Hole part 224 Narrow part 226 Wide part 228 Widening part 230 Friction resistance part 232 Mounting structure 234 Mounting member 236 Engagement part 237 Split groove 238 Diameter expansion part 240 Mounting structure 242 Movable member 244 Mounting member 246 Cylindrical body 248 Groove 250 Groove 252 Ring body 253 Slit 254 Pin 256 Pin 270 Mounting structure 272 Mounting member 274 Shaft part 276 Connecting part 278 Locking part 280 Mounting hole 282 Locking groove part 284 Notch part 286 Wire groove part 290 Mounting structure 292 Mounting member 294A Claw part 294B Claw part 296 Spring 298A Knob part 298B Knob part 300 Shaft 302A Mounting hole 302B Mounting hole 310 Mounting structure 312 Mounting member 316 Fixed shaft part 318 Fixing hole 320 Retaining hole 322 Retaining part 324 Resin sheet 330 Mounting structure 332 Mounting member 334 Shaft part 336 Small diameter part 338 First locking part 338A Stopper Part 338B Grip part 340 Second locking part 340A Stopper part 340B Knob part 342 Fixing groove 344 Retaining part 344A Retaining piece 344B Elastic member 346 Pushing part

41 is a perspective view of the mounting structure 310, and FIGS. 42 and 43 are an assembly perspective view of the mounting structure 310.

10 Endoscope 12 Endoscope system 14 Processor device 16 Light source device 18 Display 20 Standing operation lever 22 Operation unit 21 Screw hole 22A One side surface 22B The other side surface 23 Opening 24 Insertion part 26 Tip part 28 Tip member 28A Peripheral surface 30 Standing stand 30A Guide surface 30B Base 32 Operation part Main body 34 Gripping part 36 Extension part 38 Folding prevention pipe 38A Base end part 40 Flange 42 Treatment tool introduction port 44 Mount part 44A Tip part 46 Universal cord 48 Electric connector 50 Light source connector 52 Curved part 54 Flexible part 56 Treatment tool 56A Tip part 58 Treatment tool channel 60 Wire 62 Wire channel 64 Angle knob 66 Air supply water supply button 68 Suction button 70 Air supply water supply nozzle 72 Treatment tool outlet 74 Outlet port 76 Cap member 76A Opening window 78 Partition 78A Bearing 80 Partition 80A Bearing 82 Standing stand accommodation 84 Rotating shaft 86 Rotating shaft 88 Optical system accommodation 90 Lighting window 92 Observation window 94 Introduction port
9 6 Movable member 98 Mounting member 98A Mounting member 100 Engagement member 102 Accommodating groove 104 Opening 106 Engagement guide part 108 Engagement guide path 110 Deformation generation part 112 Groove 114 Groove 116 Detachment guide surface 120 Standing operation mechanism 124 First conversion Mechanism 126 Wire 128 2nd conversion mechanism 130 Crank member 132 1st slider 134 2nd slider 136 Lever 138 1st gear 140 2nd gear 142 3rd gear 144 4th gear 146 Bracket 148 Shaft 150 Shaft 152 Rotating shaft 154 Rotation Body 156 Sleeve 158 O-ring 160 Beam 160A Back surface 162 First bearing 163 Recess 164 Second bearing 165 Through hole 166 O-ring 167 ... Cap member 168 Driven shaft 169 Spacer 170 Mounting structure 170A Mounting structure 172 Wire assembly 174 Engagement hole 174A Engagement hole 175 Edge part 176 Engagement part 176A Engagement part 177 Cylindrical part 178 Core part 180 Hole part 182 Notch 182A Fricment part 184 Elastic deformation part 184A Fricment part 186 Claw part 186A Claw part 187 Tapered part 200 Branch pipe 202 Tip pipe 204 Pipe line 206 Pipe line 208 Suction pipe 210 Mounting structure 212 Mounting member 214 Engagement hole 216 Engagement part 218 Knob part 220 Shaft part 222 Hole part 224 Narrow part 226 Wide part 228 Diameter expansion part 230 Friction resistance part 232 Mounting structure 234 Mounting member 236 Engagement part 237 Split groove 238 Diameter expansion part 240 Mounting structure 242 Movable member 244 Mounting member 246 Cylindrical body 248 Groove 250 Groove 252 Ring body 253 Slit 254 Pin 256 Pin 270 Mounting structure 272 Mounting member 274 Shaft part 276 Connecting part 278 Locking part 280 Mounting hole 282 Locking groove part 284 Notch part 286 Wire groove part 290 Mounting structure 292 Mounting member 294A Claw part 294B Claw part 296 Spring 298A Knob part 298B Part 300 Shaft 302A Mounting hole 302B Mounting hole 310 Mounting structure 312 Mounting member 316 Fixed shaft part 318 Fixing hole 320 Retaining hole 322 Retaining part 324 Resin sheet 330 Mounting structure 332 Mounting member 334 Shaft part 336 Small diameter part 338 First locking Part 338A Stopper part 338B Pinch part 340 Second locking part 340A Stopper part 340B Pinch part 342 Fixing groove 344 Retaining part 344A Retaining piece 3 44B Elastic member 346 Pressing part

Claims (17)

An operation unit provided with an operation member and
An insertion portion provided on the tip side of the operation portion and
A treatment tool standing stand provided at the tip of the insertion portion and
A movable member that is exposed outside the operation unit and operates in conjunction with the operation of the operation member.
A first shaft portion that is exposed to the outside of the operation portion and rotatably supports the movable member on the operation portion.
A first bearing portion provided on one end side of the movable member, wherein a bottomed recess is formed on an inner side surface facing the operation portion, and the first shaft portion is accommodated in the recess. A first bearing portion that covers the first shaft portion and
A seal member arranged between the outer peripheral surface of the first shaft portion and the inner peripheral surface of the recess of the first bearing portion.
An upright operation wire that operates the treatment tool stand by connecting the tip end side to the treatment tool stand and connecting the base end side to the movable member and pushing and pulling according to the operation of the movable member.
A mounting member provided at the base end of the standing operation wire and detachably engaged with the movable member,
Endoscope equipped with. The first shaft portion is a shaft portion that transmits the operation of the operation portion to the movable member.
The endoscope according to claim 1. A second bearing portion provided on the other end side of the movable member and having a through hole from an inner side surface facing the operation portion toward an outer surface opposite to the inner side surface. Department and
A second shaft portion that is inserted into the through hole, fixed to the operation portion, and pivotally supports the second bearing portion to the operation portion via the through hole, and a second shaft portion.
A closing member that closes the opening on the outer surface side of the through hole, and
The endoscope according to claim 1 or 2. One of the movable member and the mounting member is provided with an engaging hole, and the other is provided with an engaging portion that is detachably engaged with the engaging hole.
The endoscope according to any one of claims 1 to 3. The engaging portion is provided with an elastically deformed portion that elastically deforms and engages with the engaging hole.
The endoscope according to claim 4. A pair of elastically deformable claws that engage with the edge of the engaging hole are formed in the elastically deformed portion, and when the engaging hole and the engaging portion are engaged or disengaged, the elastically deformable portion is formed. , The pair of claws are displaced in a direction close to each other by elastic deformation.
The endoscope according to claim 5. The engaging portion has a tubular portion that is inserted into the engaging hole.
The elastically deformed portion is composed of a slit portion provided at the tip portion of the tubular portion, and when the tip portion of the tubular portion is inserted into the engaging hole, the slit portion is elastically deformed. It is configured so that the diameter can be reduced.
The endoscope according to claim 5. The engaging hole has a narrow portion having a first width and a wide portion having a second width larger than the first width.
The engaging portion has a shaft portion having an outer diameter equal to or less than the first width, and an enlarged diameter provided at the tip of the shaft portion and having an outer diameter larger than the first width and smaller than the second width. Have a part,
The endoscope according to claim 4. The engaging hole has a narrow portion having a first width and a wide portion having a second width larger than the first width.
The engaging portion is provided at the tip of the shaft portion and a shaft portion having an outer diameter equal to or less than the first width, and has an outer diameter larger than the second width and a plurality of slit grooves are formed. In addition, it has an enlarged diameter portion that serves as the elastically deformed portion.
When the enlarged diameter portion is inserted into the wide portion, the enlarged diameter portion is elastically deformed by the plurality of split grooves so that the diameter can be reduced.
The endoscope according to claim 5. The engaging hole is a frictional resistance portion that imparts frictional resistance to the shaft portion by abutting on the outer peripheral surface of the shaft portion when the shaft portion is moved between the narrow portion and the wide portion. Have,
The endoscope according to claim 8 or 9. One of the movable member and the mounting member is provided with a cylindrical body extending in a direction perpendicular to the axial direction of the standing operation wire, and the other is rotatably engaged with the outer circumference of the cylindrical body. An annular body is provided,
A rotation regulating stopper for regulating the relative rotation between the cylindrical body and the annular body is provided.
The endoscope according to any one of claims 1 to 3. The mounting member includes a shaft portion extending in a direction perpendicular to the axial direction of the standing operation wire, a connecting portion extending in a direction perpendicular to the longitudinal axis of the shaft portion, and the shaft portion of the connecting portion. And a locking part provided on the opposite side is provided,
The movable member has a mounting hole into which the shaft portion is inserted, and the shaft portion is engaged when the shaft portion is rotated around a longitudinal axis of the shaft portion in a state where the shaft portion is inserted into the mounting hole. A locking groove for locking the stop is provided.
The endoscope according to any one of claims 1 to 3. The connecting portion is provided with a wire groove portion along the extending direction of the connecting portion, and the wire groove portion for accommodating the standing operation wire when the locking portion is locked to the locking groove portion. Be,
The endoscope according to claim 12. The mounting member includes a pair of claws, an urging member that urges the pair of claws to approach each other, and a direction in which the pair of claws move away from each other against the urging force of the urging member. There is a knob to move it to
The movable member is provided with a pair of mounting holes for mounting the pair of claws by the urging force of the urging member.
The endoscope according to any one of claims 1 to 3. One of the movable member and the mounting member is provided with a fixed shaft portion, and the other is provided with a fixing hole into which the fixed shaft portion is fitted.
One of the movable member and the mounting member is provided with a retaining hole, and the other is provided with a retaining portion fitted into the retaining hole.
The endoscope according to any one of claims 1 to 3. The mounting member is provided with a shaft portion extending in the axial direction of the standing operation wire, a small diameter portion formed in the central portion in the longitudinal axial direction of the shaft portion, and one end portion of the shaft portion. A first locking portion and a second locking portion provided at the other end of the shaft portion are provided.
The movable member has a fixing groove for accommodating the shaft portion, and when the shaft portion is accommodated in the fixing groove, the movable member is brought into contact with the first locking portion and the second locking portion to form the shaft. A retaining portion that regulates the movement of the portion in the longitudinal axis direction, and a convex push that is formed in the fixing groove and is brought into contact with the central portion of the shaft portion when the shaft portion is accommodated in the fixing groove. A pad is provided,
The endoscope according to any one of claims 1 to 3. The retaining portion includes a pair of retaining pieces arranged with a gap along the longitudinal direction of the shaft portion, and an urging member for urging the pair of retaining pieces in a direction approaching each other. ,
The shaft portion is accommodated in the fixing groove against the urging force of the urging member from the gap between the pair of retaining pieces.
The endoscope according to claim 16.