Endoscope assembly, method for installing a standing table attachment, and method for removing a standing table attachment

Abstract

Provided is an upright table attachment or the like that enables easy cleaning of an endoscope by being removed after endoscopy. In the upright table attachment (90) that can be attached to and detached from the endoscope, it includes: a holding body (70) having an inclined panel that covers a part of the inclined surface of the endoscope, a first plate that stands up from the edge of the inclined panel and is arranged along the first inner wall, and a second plate that abuts against the second inner wall; and an upright table (80) rotatably supported between the first plate and the second plate and having a rod connection portion connected to the rod. The upright table attachment is supplied while being attached to a first jig (91). The first jig has: a first abutting portion (41) that abuts against the inclined panel; an elastic plate (43) that protrudes from the first abutting portion (41) between the first plate and the second plate; and a first holding protrusion that protrudes from the front end of the elastic plate (43) toward the first plate side and abuts against the front end surface of the first plate.

Description

Technical Field

[0001] The present invention relates to an attachment for a raising table, an endoscope, a method for installing the attachment for a raising table, and a method for removing the attachment for a raising table. Background Art

[0002] An endoscope cover with a raising table and an endoscope used in combination with the endoscope cover have been proposed (Patent Document 1). After an endoscopy, the endoscope can be easily cleaned by removing the raising table together with the endoscope cover.

[0003] Prior Art Documents

[0004] Patent Documents

[0005] Patent Document 1: Japanese Unexamined Patent Application Publication No. 2018-118080 Summary of the Invention

[0006] Technical Problem to be Solved by the Invention

[0007] However, there is an endoscope having a structure in which it is difficult to use the endoscope cover described in Patent Document 1, such as a so-called forward oblique type endoscope having an optical field of view obliquely forward with respect to the insertion portion.

[0008] An object of one aspect is to provide an attachment for a raising table or the like that can be easily removed after an endoscopy to facilitate cleaning of the endoscope.

[0009] Technical Solution for Solving the Technical Problem

[0010] In an attachment for a raising table that can be attached to and detached from an endoscope, the endoscope includes: an inclined surface that is inclined with respect to the longitudinal direction of the insertion portion; a raising table groove having a first inner wall and a second inner wall opposed to the first inner wall and opening on the inclined surface; and a rod rotatably provided inside the raising table groove. The attachment for a raising table includes: a holding body having an inclined panel, a first plate, and a second plate, the inclined panel covering a part of the inclined surface, the first plate standing up from an edge of the inclined panel and disposed along the first inner wall, and the second plate abutting against the second inner wall; and a raising table rotatably supported between the first plate and the second plate and having a rod connection portion connected to the rod. The attachment for a raising table is supplied while being attached to a first jig. The first jig includes: a first abutting portion that abuts against the inclined panel; an elastic plate that protrudes from the first abutting portion between the first plate and the second plate; and a first holding protrusion that protrudes from a front end of the elastic plate toward the first plate side and abuts against a front end surface of the first plate.

[0011] Advantageous Effects of the Invention

[0012] In one aspect, it is possible to provide a stand attachment or the like that can be easily cleaned by detaching it after endoscopy. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is an external view of the endoscope.

[0014] Figure 2 is a perspective view of the front end of the insertion portion with the stand attachment mounted.

[0015] Figure 3 is a perspective view of the stand attachment and the front end of the insertion portion with the stand attachment detached.

[0016] Figure 4 is a perspective view of the stand attachment.

[0017] Figure 5 is a front view of the insertion portion with the stand attachment mounted.

[0018] Figure 6 is based on Figure 5 a view of the insertion portion in the VI direction.

[0019] Figure 7 is based on Figure 5 a view of the insertion portion in the VII direction.

[0020] Figure 8 is based on Figure 5 a partial cross-sectional view of the insertion portion along line VIII-VIII.

[0021] Figure 9 is an explanatory diagram showing the operation of the stand.

[0022] Figure 10 is based on Figure 6 a partial cross-sectional view of the insertion portion along line X-X.

[0023] Figure 11 is based on Figure 7 a partial cross-sectional view of the insertion portion along line XI-XI.

[0024] Figure 12 is a front view of the insertion portion with the stand attachment detached.

[0025] Figure 13 is based on Figure 12 a view of the insertion portion with the stand attachment detached in the XIII direction.

[0026] Figure 14 is a perspective view of the holder.

[0027] Figure 15 is a perspective view of the holder.

[0028] Figure 16 is a front view of the holding body in the XVI direction based on Figure 14 .

[0029] Figure 17 is a cross-sectional view of the holding body along line XVII-XVII based on Figure 16 .

[0030] Figure 18 is a perspective view of the upright table.

[0031] Figure 19 is a front view of the upright table in the XIX direction based on Figure 18 .

[0032] Figure 20 is a front view of the upright table in the XX direction based on Figure 18 .

[0033] Figure 21 is an explanatory diagram showing the assembly method of the upright table attachments.

[0034] Figure 22 is an explanatory diagram showing the assembly method of the upright table attachments.

[0035] Figure 23 is an explanatory diagram showing the assembly method of the upright table attachments.

[0036] Figure 24 is an explanatory diagram showing the supply form of the upright table attachments.

[0037] Figure 25 is a perspective view of the disassembly and assembly fixture.

[0038] Figure 26 is a perspective view of the disassembly and assembly fixture.

[0039] Figure 27 is a front view of the disassembly and assembly fixture in the XXVII direction based on Figure 25 .

[0040] Figure 28 is an explanatory diagram showing the installation method of the upright table attachments to the first fixture.

[0041] Figure 29 is an explanatory diagram showing the installation method of the upright table attachments to the first fixture.

[0042] Figure 30 is an explanatory diagram showing the installation method of the upright table attachments to the first fixture.

[0043] Figure 31 is an explanatory diagram showing the installation method of the upright table attachments to the endoscope.

[0044] Figure 32 This is an explanatory diagram showing the method of installing the upright table attachment to the endoscope.

[0045] Figure 33 This is an explanatory diagram showing the method of installing the upright table attachment to the endoscope.

[0046] Figure 34 This is an explanatory diagram showing the method of installing the upright table attachment to the endoscope.

[0047] Figure 35 This is an explanatory diagram showing the method of installing the upright table attachment to the endoscope.

[0048] Figure 36 This is an explanatory diagram showing the method of removing the upright table attachment from the endoscope.

[0049] Figure 37 This is an explanatory diagram showing the method of removing the upright table attachment from the endoscope.

[0050] Figure 38 This is an explanatory diagram showing the method of removing the upright table attachment from the endoscope.

[0051] Figure 39 This is an explanatory diagram showing the method of removing the upright table attachment from the endoscope.

[0052] Figure 40 This is a perspective view of the holder of Embodiment 2.

[0053] Figure 41 This is an explanatory diagram showing the method of removing the upright table attachment of Embodiment 2 from the endoscope.

[0054] Figure 42 This is a perspective view of the front end of the insertion portion of Embodiment 3. Detailed Embodiment

[0055] [Embodiment 1]

[0056] Figure 1 This is an external view of the endoscope 10. The endoscope 10 of this embodiment is an ultrasonic endoscope having a convex ultrasonic probe 61 at the front end.

[0057] The endoscope 10 has an operation portion 20 and an insertion portion 30. The operation portion 20 has an upright operation lever 21, a channel inlet 22, a water supply button 25, and two bending knobs 23. The operation portion 20 is connected to a video processor, a light source device, a display device, etc. (not shown) via a first hose 18 and a first connector 16. The operation portion 20 is also connected to an ultrasonic diagnostic device (not shown) via a second hose 19 extending from the first connector 16 and a second connector 17.

[0058] The insertion section 30 has a long flexible section 12 with one end connected to the operation section 20. The ultrasonic probe 61 is connected to the other end of the flexible section 12 via the bending section 13 and the front end frame 52. The bending section 13 is connected to the bending knob 23 via a bending wire inserted through the inside of the flexible section 12 and bends in response to the operation of the bending knob 23.

[0059] The channel inlet 22 and the front end frame 52 are connected by a tubular channel 34. Inside the front end frame 52, an illumination optical system, an observation optical system, etc. used for observation using an optical image are assembled. The structure of the front end frame 52 will be described in detail later.

[0060] The endoscope 10 inserts the insertion section 30 into the digestive tract from, for example, the mouth of the examinee and is used for observation using an optical image, observation using ultrasonic waves, and various treatments. In the following description, the length direction of the insertion section 30 is described as the insertion direction. Similarly, the side closer to the operation section 20 along the insertion direction is described as the operation section side, and the side farther from the operation section 20 is described as the front end side.

[0061] Figure 2 is a perspective view of the front end of the insertion section 30 with the upright table attachment 90 mounted. The structure of the upright table attachment 90 will be described later. The ultrasonic probe 61 is a so-called convex type with a convex ultrasonic transmission / reception surface 63. The ultrasonic probe 61 has two balloon water supply / drainage grooves 64 provided perpendicular to the insertion direction on the operation section side with respect to the ultrasonic transmission / reception surface 63.

[0062] The front end frame 52 is generally cylindrical and has a second inclined surface 552 inclined with respect to the axial direction on the front end side. The ultrasonic transmission / reception surface 63 and the second inclined surface 552 are provided on the same side with respect to the insertion direction. An observation window 36 and an illumination window 37 are arranged on the second inclined surface 552. The endoscope 10 is a so-called forward oblique view type that illuminates and observes obliquely forward with respect to the insertion direction. A balloon fixing groove 53 is provided on the outer periphery of the front end side of the front end frame 52.

[0063] Figure 3 is a perspective view of the front end of the upright table attachment 90 and the insertion section 30 with the upright table attachment 90 removed.

[0064] The front end frame 52 is divided into left and right by a substantially U-shaped groove type upright table groove 56 extending from the front end side toward the operation section side. The channel 34 opens at the end on the operation section side of the upright table groove 56. The upright table groove 56 has a second inner wall 562 continuous with the aforementioned second inclined surface 552 and a first inner wall 561 opposed to the second inner wall 562. The first inclined surface 551 is continuous with the first inner wall 561.

[0065] The first inclined surface 551 is substantially parallel to the second inclined surface 552 and is located on the operation unit side with respect to the second inclined surface 552. In the following description, there are cases where the first inclined surface 551 and the second inclined surface 552 are collectively referred to as the inclined surface 55. The upright table groove 56 opens on the inclined surface 55.

[0066] Figure 4 is a perspective view of the upright table attachment 90. Figure 4 shows from a Figure 3 different orientation the upright table attachment 90. Use Figure 3 and Figure 4 to explain the outline of the structure of the upright table attachment 90.

[0067] The upright table attachment 90 includes a holding body 70 and an upright table 80. The holding body 70 includes an inclined panel 75 in the shape of a substantially triangular plate, and a first plate 71, a second plate 72, and a third plate 73. The first plate 71 and the third plate 73 project substantially perpendicularly from both sides of the inclined panel 75 toward the same side. The second plate 72 is substantially parallel to the first plate 71. The inclined panel 75 and the second plate 72 are connected via a connecting portion 74.

[0068] At the front end of the first plate 71, engagement claws 711 projecting toward three sides other than the second plate 72 side are provided. On the inclined panel 75, a substantially U-shaped cutout portion 77 extending from the second plate 72 side toward the third plate 73 side is provided. The cutout portion 77 also divides the first plate 71 into two parts.

[0069] The second plate 72 is substantially pentagonal. The first side 721 (see Figure 15 ) of the second plate 72 is connected to the connecting portion 74. The second side 722 (see Figure 15 ) adjacent to the first side 721 is substantially parallel to the inclined panel 75. A dividing groove 728 having a width substantially the same as the thickness of the second plate 72 is provided substantially perpendicularly from the third side 723 (see Figure 15 ) adjacent to the second side 722. On the surface of the second plate 72 facing the first plate 71, a stopper projection 729 is provided. The stopper projection 729 is disposed between the fourth side 724 (see Figure 15 ) adjacent to the third side 723 and the dividing groove 728. On the surface opposite to the stopper projection 729, an engagement projection 727 is disposed facing the dividing groove 728.

[0070] The first side 721 and the second side 722, and the third side 723 and the fourth side 724 are substantially perpendicular. Similarly, the fourth side 724 and the fifth side 725 (see Figure 15 ) adjacent to the fourth side 724 are also substantially perpendicular. The upright table 80 is rotatably supported near the angle formed by the fourth side 724 and the fifth side 725 of the second plate 72. The structure of the portion for supporting the upright table 80 will be described later.

[0071] The upright table 80 has an upright portion 83 with a spoon-shaped recessed portion 84 provided on one side. A groove-shaped rod connecting portion 81 that opens on both sides is provided at an end of the upright portion 83 away from the recessed portion 84. The structure of the upright table 80 will be described in detail later.

[0072] The third plate 73 is gently curved and is gently continuous with the surface of the front end frame 52 when the upright table attachment 90 is attached to the front end frame 52 as shown. In addition, the surface of the inclined panel 75 is substantially the same planar shape as the second inclined surface 552. That is, the first inclined surface 551 is disposed at a position closer to the operation portion side than the second inclined surface 552 corresponding to the thickness of the inclined panel 75. Figure 2 shown.

[0073] Figure 5 is a front view of the insertion portion 30 to which the upright table attachment 90 is attached. Figure 6 is based on Figure 5 a view of the insertion portion 30 in the VI direction. Figure 7 is based on Figure 5 a view of the insertion portion 30 in the VII direction. Figure 8 is based on Figure 5 a partial cross-sectional view of the insertion portion 30 along line VIII-VIII. Figure 9 is an explanatory diagram for explaining the operation of the upright table 80. Figure 10 is based on Figure 6 a partial cross-sectional view of the insertion portion 30 along line X-X. Figure 11 is based on Figure 7 a partial cross-sectional view of the insertion portion 30 along line XI-XI.

[0074] Figure 12 is a front view of the insertion portion 30 from which the upright table attachment 90 has been removed. Figure 13 is based on Figure 12 a view of the insertion portion 30 from which the upright table attachment 90 has been removed in the XIII direction. In the Figures 8 to 11 cross-sectional view, the internal structures of the front end frame 52, the ultrasonic probe 61, and the bending portion 13 are omitted from the illustration.

[0075] As Figure 12 shown, the first inner wall 561 is stepped so as to approach the second inner wall 562 toward the operation portion side. As Figure 3 and Figure 12As shown in FIG. 1 , the prism-shaped rod 54 protrudes from a portion of the first inner wall 561 close to the second inner wall 562 toward the second inner wall 562. The rod 54 rotates in conjunction with the user's operation of the erection operation rod 21. The rotation axis of the rod 54 passes through the inside of the rod 54 and is substantially perpendicular to the insertion direction. The structure in which the rod 54 and the erection operation rod 21 are operated in conjunction has been adopted in the past, so the description is omitted.

[0076] When the erection stand attachment 90 is mounted on the insertion portion 30, Figure 8 As shown, the rod 54 is engaged with the rod connecting portion 81 provided on the upright stand 80. Figure 9 As shown, the erection stand 80 is rotated. The user can rotate the erection stand 80 by operating the erection operation lever 21 to adjust the direction of the treatment tool protruding toward the distal end side through the channel 34.

[0077] like Figure 10 As shown, the rising portion 83 has a width substantially equal to the distance between the first plate 71 and the second plate 72. Therefore, the treatment tool protruding from the channel 34 does not fall between the rising portion 83 and the first plate 71 or between the rising portion 83 and the second plate 72. The rotation range of the rising stand 80 is limited by the stopper protrusion 729 and the connecting portion 74.

[0078] like Figure 3 , Figure 6 and Figure 12 As shown, a groove-shaped engaging recess 57 substantially perpendicular to the second inner wall 562 is provided on the peripheral surface of the front end frame 52. The engaging recess 57 is linear.

[0079] like Figure 3 and Figure 13 As shown, a retaining groove 58 substantially perpendicular to the first inner wall 561 is provided on the first inclined surface 551. The retaining groove 58 is a groove having a T-shaped cross section in which the vertical bars are directed toward the first inclined surface 551 and the horizontal bars are arranged substantially parallel to the first inclined surface 551. Two substantially right-angled inner wall claws 581 are formed opposite to each other at the boundary between the vertical bar portion and the horizontal bar portion of the T-shape.

[0080] like Figure 11 As shown, the inner wall claw 581 and the engaging claw 711 engage, and the retaining body 70 is fixed to the front end frame 52. At the bottom of the retaining groove 58, the first inner wall 561 has a first step portion 582 close to the second inner wall 562. The front end of the first plate 71 and the step portion 582 are in a butt state or have a slight gap. Figure 11 Another inner wall claw 581 corresponding to the inner wall claw 581 shown is also engaged with the other end of the engaging claw 711, but is not shown in the figure.

[0081] like Figure 5 andFigure 10 As shown, the engaging protrusion 727 engages with the engaging recess 57. The engaging protrusion 727 engages in a state of being abutted against the front-end side surface of the engaging recess 57, and the holder 70 is fixed to the front-end frame 52 by frictional force. As described above, the front-end frame 52 and the holder 70 engage at a total of three locations: the inner wall claws 581 at two locations and the engaging recess 57.

[0082] Figure 14 and Figure 15 is a perspective view of the holder 70. Figure 16 is based on Figure 14 a front view of the holder 70 in the XVI direction. Figure 17 is based on Figure 16 a cross-sectional view of the holder 70 taken along line XVII-XVII. Use Figures 14 to 17 to illustrate the structure of the holder 70.

[0083] Near the fourth side 724 near the fifth side 725 of the second plate 72, there is provided a riser mounting hole 76. The riser mounting hole 76 is in the shape of a circular hole with a substantially U-shaped groove provided at one location. The substantially U-shaped groove is provided at the edge of the circular hole portion on the side opposite to the fourth side 724 side. Around the riser mounting hole 76, there is provided a counterbore that is circularly recessed from the side surface that does not face the first plate 71.

[0084] The distance between the end surface on the first plate 71 side of the connecting portion 74 and the first plate 71 is separated by a distance approximately equal to the thickness of the second plate 72. Thus, the elastic deformation of the first plate 71 described later is not hindered by the connecting portion 74.

[0085] Figure 18 is a perspective view of the riser 80. Figure 19 is based on Figure 18 a front view of the riser 80 in the XIX direction. Figure 20 is based on Figure 18 a front view of the riser 80 in the XX direction. Use Figures 18 to 20 to illustrate the structure of the riser 80.

[0086] As Figures 18 to 20 shown, in addition to the aforementioned riser portion 83, the riser 80 also has a riser shaft 82. The riser portion 83 is substantially L-shaped and has: a first riser portion 831 with a pit portion 84 provided on one surface; and a second riser portion 832 that protrudes from the end of the first riser portion 831 toward the same side as the surface of the first riser portion 831 having the pit portion 84.

[0087] The surface of the first upright portion 831 having the recessed portion 84 and one surface of the adjacent second upright portion 832 are smoothly continuous. A circular portion 833 that protrudes one level higher than the adjacent surface of the first upright portion 831 is provided on one surface of the second upright portion 832 that is adjacent to the surface continuous with the surface having the recessed portion 84.

[0088] The rod connecting portion 81 is in a groove shape that opens on two surfaces, namely, the end surface on the opposite side of the second upright portion 832 from the side continuous with the first upright portion 831 and the surface on the side opposite to the side where the circular portion 833 is provided. The inner surface of the rod connecting portion 81 is generally in a rectangular parallelepiped shape, and two adjacent sides form the opening surfaces.

[0089] The upright table shaft 82 is in a cylindrical shape protruding from one surface of the second upright portion 832. The central axis of the upright table shaft 82 passes through the rod connecting portion 81. A substantially rectangular plate-shaped shaft fixing portion 85 protrudes in one direction from the circumferential surface near the end of the upright table shaft 82. The protruding direction of the shaft fixing portion 85 is perpendicular to the two opposing inner surfaces of the rod connecting portion 81 and faces the side closer to the recessed portion 84 among the two inner surfaces.

[0090] Figures 21 to 23 It is an explanatory diagram showing the assembling method of the upright table attachment 90. Use Figures 21 to 23 Explain the structure and assembling method of the upright table attachment 90.

[0091] As Figure 21 shown, with the orientation of the substantially U-shaped groove provided in the upright table mounting hole 76 and the shaft fixing portion 85 aligned, the upright table shaft 82 is inserted into the upright table mounting hole 76 from the side of the third plate 73. As Figure 22 shown, with the upright table shaft 82 as the center, the upright table 80 rotates Figure 22 in the clockwise direction in

[0092] The vicinity of the stopper projection 729 of the second plate 72 flexes inward in Figure 22 in Figure 23 shown, the upright portion 83 is disposed between the stopper projection 729 and the connecting portion 74. Through the above, the assembly of the upright table attachment 90 is completed.

[0093] The circular portion 833 and the portion of the second plate 72 that abuts against the circular portion 833 are preferably smooth surfaces. In this way, the upright table 80 rotates smoothly. Due to the presence of the circular portion 833, contact between the upright portion 83 and the second plate 72 is prevented during rotation.

[0094] Since the second plate 72 is provided with a split groove 728, the second plate 72 is easily flexed, and the upright table 80 can easily move from the state shown in Figure 22 toFigure 23 The state shown. After the upright table attachment 90 is installed on the insertion part 30, the second plate 72 is held inside the upright table groove 56, so the second plate 72 does not flex. Therefore, the rotation range of the upright table 80 is restricted by the stopper projection 729 and the connecting part 74.

[0095] Figure 24 It is an explanatory view showing the supply form of the upright table attachment 90. The upright table attachment 90 is provided in a state of being sterilized by an arbitrary sterilization method such as electron beam sterilization, while being individually sealed in a sterilization pack 99 or the like of independent packaging material in a state of being installed on the disassembly and assembly jig 95.

[0096] Figure 25 and Figure 26 It is a perspective view of the disassembly and assembly jig 95. Figure 27 Based on Figure 25 It is a front view of the disassembly and assembly jig 95 in the XXVII direction. Use Figures 24 to 27 to explain the structure of the disassembly and assembly jig 95.

[0097] The disassembly and assembly jig 95 has a first jig 91 at one end of the angular columnar holding part 96 and a second jig 92 at the other end. As Figure 24 shown, the upright table attachment 90 is supplied in a state of being installed on the first jig 91. The user installs the upright table attachment 90 on the endoscope 10 using the first jig 91. The second jig 92 is used when removing the upright table attachment 90 from the endoscope 10 after the endoscopy.

[0098] The holding part 96 has a thickness and length that are easy for a user wearing a medical glove to operate. On the first jig 91 side of the holding part 96, the character "PUSH" is marked, and on the second jig 92 side, the character "PULL" is marked. Thereby, the user can easily identify the first jig 91 side and the second jig 92 side. These characters are convex and function as anti-slip when the user performs the disassembly and assembly operation of the upright table attachment 90.

[0099] Use Figure 24 , Figure 25 and Figure 27 to explain the structure of the first jig 91. The second holding projection 442, the elastic plate 43, and the third holding projection 443 protrude from the first abutting part 41 provided on the end face of the holding part 96 in this order.

[0100] The second holding projection 442 is in the form of a plate: near the vertex of one side of a triangle whose base is connected to the first abutting part 41, another small triangle is continuous. The elastic plate 43 has a shape that is substantially the same as that of the second holding projection 442 when viewed from above. The second holding projection 442 and the elastic plate 43 are arranged in parallel at substantially the same position in the thickness direction with a space therebetween when viewed from above.

[0101] The elastic plate 43 has a first holding projection 431 that protrudes toward the third holding projection 443 at the front end. The third holding projection 443 has a quadrangular prism shape with one side surface arranged parallel to the main surface of the elastic plate 43. The end surface of the third holding projection 443 is located closer to the first abutting portion 41 than the end portion on the first abutting portion 41 side of the first holding projection 431.

[0102] Use Figure 24 , Figure 26 and Figure 27 to describe the structure of the second jig 92. The first projection 451 and the second projection 452 protrude from the second abutting portion 42 provided on the end surface of the holding portion 96.

[0103] The second projection 452 has a plate shape that is substantially the same shape as the second holding projection 442 when viewed from above. The thickness of the second projection 452 is substantially the same as the sum of the thicknesses of the second holding projection 442 and the elastic plate 43 and the interval between the second holding projection 442 and the elastic plate 43.

[0104] The second projection 452 has a fourth holding projection 454 that protrudes toward the first projection 451 at the front end. The first projection 451 has a prism shape with one side surface arranged parallel to the main surface of the second projection 452. The cross-sectional shape of the first projection 451 is substantially the same as the cross-sectional shape of the third holding projection 443. The end surface of the first projection 451 is located closer to the second abutting portion 42 than the end portion on the second abutting portion 42 side of the fourth holding projection 454.

[0105] Figures 28 to 30 is an explanatory diagram showing the method of attaching the upright table attachment 90 to the first jig 91. Figures 28 to 30 Represents based on Figure 16 the cross-section along line XXVIII-XXVIII in

[0106] As Figure 28 shown, the upright table attachment 90 is held such that the inclined panel 75 side faces the first jig 91, and the inclined panel 75 and the first abutting portion 41 are parallel. The second holding projection 442 and the elastic plate 43 are inserted between the first plate 71 and the second plate 72.

[0107] As Figure 29 shown, the elastic plate 43 is pressed by the first plate 71 and elastically deformed toward the second holding projection 442 side. The third holding projection 443 is inserted into the cutout portion 77.

[0108] As Figure 30As shown, by inserting the first holding protrusion 431 into a position inside the front end of the first plate 71, the elastic plate 43 is elastically reset. The end face on the first contact portion 41 side of the first holding protrusion 431 contacts the front end face of the first plate 71. The inclined panel 75 and the first contact portion 41 are in a butting state. The second plate 72 contacts the side surface of the second holding protrusion 442, and the inner surface of the cutout portion 77 contacts the side surface of the third holding protrusion 443.

[0109] Through the above, the upright table attachment 90 is fixed to the first jig 91. It should be noted that each of the above contact portions may instead be in a state with a gap to such an extent that it does not hinder the operations in subsequent processes.

[0110] As Figure 24 and Figure 25 shown, the upright table 80 is held by the elastic plate 43 and the front end portion of the second holding protrusion 442 in a state where the recessed portion 84 is close to the stopper protrusion 729. The rod connecting portion 81 is in a state where the opening at the end faces the longitudinal direction of the holding portion 96.

[0111] As used Figure 24 described, the upright table attachments 90 are individually sealed in the sterilization pack 99 in a state of being mounted on the disassembly and assembly jig 95, and are provided to medical institutions in a sterilized state by any sterilization means such as electron beam sterilization.

[0112] Sterilization may also be performed by each medical institution before using the upright table attachment 90. In this case, the medical institution may also perform the operation of sealing it in the sterilization pack 99. The installation of the upright table attachment 90 described using Figures 28 to 30 may also be performed by the medical institution on the disassembly and assembly jig 95.

[0113] Figures 31 to 35 is an explanatory diagram showing a method of installing the upright table attachment 90 on the endoscope 10. Figures 32 to 35 With Figures 28 to 30 similarly showing a cross-section based on Figure 16 the XXVIII-XXVIII line in

[0114] The user operates the upright operation lever 21 so that the rod 54 is in the orientation when the upright table 80 is erected. Through this operation, as Figure 31 shown, a state is formed in which the orientations of the rod 54 and the rod connecting portion 81 are the same.

[0115] As Figure 31 and Figure 32 shown, the user holds the disassembly and assembly jig 95 with the upright table attachment 90 installed so that the inclined surface 55 and the first contact portion 41 are parallel. The user presses the disassembly and assembly jig 95 toward the endoscope 10 so that the upright table 80 enters the upright table groove 56.

[0116] As Figure 33 shown, the first holding projection 431 is pressed against the stepped portion 582, and the elastic plate 43 is elastically deformed toward the second holding projection 442. Both ends of the engaging claw 711 are pressed against the first inner wall 561 at the edge of the holding groove 58, and the first plate 71 is elastically deformed toward the second holding projection 442.

[0117] As Figure 34 shown, by inserting the engaging claw 711 deeper than the inner wall claw 581, the first plate 71 is elastically reset. The engaging claw 711 and the inner wall claw 581 are engaged. The surface of the first plate 71 on the side of the second plate 72 and the first inner wall 561 deeper than the stepped portion 582 are substantially flush.

[0118] Although not shown, the portion of the second plate 72 on the side of the engaging projection 727 beyond the dividing groove 728 is elastically deformed toward the standing platform 80. As described using Figure 5 and Figure 10 , the engaging projection 727 engages with the engaging recess 57. Since the orientations of the rod 54 and the rod connecting portion 81 are the same, the rod 54 is inserted into the rod connecting portion 81.

[0119] From Figure 34 the state shown, the user pulls out the disassembly and assembly jig 95, whereby as Figure 35 shown, the standing platform attachment 90 is separated from the first jig 91. As described using Figure 2 , it is formed in a state where the standing platform attachment 90 is attached to the endoscope 10. Through the above, the installation operation of the standing platform attachment 90 to the endoscope 10 is completed.

[0120] By using the disassembly and assembly jig 95, the user can easily attach the standing platform attachment 90 to the endoscope 10. Since the disassembly and assembly jig 95 is larger than the standing platform attachment 90, operations such as taking it out from the sterilization pack 99 are also easy.

[0121] During the installation operation, it is possible to prevent the standing platform attachment 90 and the endoscope 10 from being damaged by excessive force being applied to one or both of them. During the installation operation, it is also possible to prevent the medical gloves worn by the user from being punctured.

[0122] It should be noted that the standing platform attachment 90 can also be attached to the endoscope 10 without using the disassembly and assembly jig 95. The user inserts the standing platform 80 into the standing platform groove 56 while pressing it with a finger to make it in an appropriate orientation. Then, by pushing in the inclined panel 75, the first plate 71 is pushed in while being elastically deformed, and the engaging claw 711 and the inner wall claw 581 are engaged.

[0123] Figures 36 to 39 is an explanatory diagram showing a method of detaching the standing platform attachment 90 from the endoscope 10. Figure 36 AndFigure 8 Similarly, it represents a cross-section based on Figure 5 the VIII-VIII line in Figures 37 to 39 and Figures 28 to 30 Similarly, it represents a cross-section based on Figure 16 the XXVIII-XXVIII line in

[0124] As Figure 36 shown, the user inserts the front end of the second protrusion 452 between the upright table 80 and the connecting portion 74, and makes the second abutting portion 42 abut against the inclined panel 75. By the front end of the second protrusion 452, the upright table 80 is rotated, and the orientations of the rod 54 and the rod connecting portion 81 are kept the same as in the state Figure 31 described.

[0125] As Figure 37 shown, the first protrusion 451 is inserted into the notch portion 77. The engaging claw 711 is pushed by the first protrusion 451, and the first plate 71 is elastically deformed toward the second protrusion 452 side, and the engagement between the engaging claw 711 and the inner wall claw 581 is disengaged.

[0126] From Figure 37 the state shown, the user pulls out the disassembly and assembly jig 95, and thus as Figure 38 shown, the end face of the first plate 71 contacts the fourth holding protrusion 454. Although not shown, the portion of the second plate 72 on the engaging protrusion 727 side with respect to the dividing groove 728 is elastically deformed toward the upright table 80 side, and the engagement between the engaging protrusion 727 and the engaging recess 57 is released. As Figure 39 shown, the upright table attachment 90 is detached from the endoscope 10 in a state of being fixed to the second jig 92.

[0127] Since the first plate 71 is deformed by being pushed by the first protrusion 451, the upright table attachment 90 does not detach from the disassembly and assembly jig 95. The user discards the used upright table attachment 90 together with the disassembly and assembly jig 95.

[0128] By using the disassembly and assembly jig 95, the user can easily remove the upright table attachment 90 from the endoscope 10. The removed upright table attachment 90 cannot be separated from the disassembly and assembly jig 95, so that the incorrect reuse of the upright table attachment 90 can be prevented.

[0129] By using the disassembly and assembly jig 95, it is possible to prevent the user from accidentally damaging the endoscope 10 during the operation of removing the upright table attachment 90. During the removal operation, it is also possible to prevent the medical gloves worn by the user from being perforated.

[0130] Since the first clamp 91 and the second clamp 92 integrally constitute the detachment clamp 95, the user can remove the erection stand attachment 90 from the endoscope 10 using the detachment clamp 95 to which the erection stand attachment 90 was previously attached. That is, the user does not need to prepare a clamp for removing the erection stand attachment 90 separately.

[0131] The following is an overview of the method of using the endoscope 10 of this embodiment. The endoscope 10 is stored in a state where it has been cleaned or the like. The user takes out the detaching jig 95 to which the erection stand attachment 90 is attached from the sterilization package 99. The user follows the instructions for use. Figures 31 to 35 In the described steps, the erecting stand attachment 90 is mounted on the endoscope 10 .

[0132] The user connects the first connector 16 to a video processor, a light source device, a display device, etc. The user connects the second connector 17 to an ultrasonic diagnostic device.

[0133] The user operates the water supply button 25, so that water flows out from the balloon water supply and drainage hole set in the balloon water supply and drainage groove 64, and the balloon pipeline (not shown) is filled with water. The user covers the balloon 98 with an O-ring on the mouth on the ultrasonic probe 61, and inserts and fixes the O-ring in the balloon fixing groove 53. It should be noted that the stand attachment 90 can also be installed after the balloon 98 is installed.

[0134] The user operates the water supply button 25 to supply water from the balloon water supply and drainage hole, thereby Figure 7 As shown by the two-dot chain line, the balloon 98 can be inflated. The user inflates the balloon 98 and confirms that the balloon 98 is correctly installed. Then, the user operates the water supply button 25 to drain water from the balloon water supply and drainage hole, thereby shrinking the balloon 98 and making it close to the ultrasonic probe 61.

[0135] The user inserts the insertion part 30 through the mouth of the person to be examined. The user guides the front end of the insertion part 30 to the target part while observing the image captured through the observation window 36. The user places the ultrasonic transmitting and receiving surface 63 against the target part through the balloon 98 to perform ultrasonic image diagnosis. The user can appropriately change the size of the balloon 98 by operating the water supply button 25, and can capture the target part at the desired position on the ultrasonic image.

[0136] The user protrudes a treatment instrument such as a puncture needle from the front end frame 52 through the channel 34 for use. The treatment instrument protrudes along the ultrasonic scanning surface, so the user can observe the positional relationship between the front end of the treatment instrument and the lesion on the ultrasonic image. The user rotates the erection table 80 by operating the erection operation lever 21, etc., and guides the front end of the treatment instrument to a desired position.

[0137] After performing necessary disposal and the like, the user pulls out the disposal instrument from the passage 34. The user pulls out the endoscope 10 from the subject to be examined, and ends the examination or disposal. The user follows the process described in the Figures 36 to 39 user manual to remove and discard the upright table attachment 90 from the endoscope 10. The user removes and discards the balloon 98. It should be noted that either the upright table attachment 90 or the balloon 98 can be removed first.

[0138] The user performs reprocessing such as cleaning on the endoscope 10 after removing the upright table attachment 90 and the balloon 98 for the next use. Since the upright table 80 has been removed, the user can easily perform the cleaning operation.

[0139] The balloon 98 can also be provided together with the upright table attachment 90 in a package. The user takes out the upright table attachment 90 and the balloon 98 used in the endoscopic ultrasound examination of one case together.

[0140] As Figure 3 , Figure 5 and Figure 12 shown, the engaging recess 57 is in the form of a groove that linearly extends from the second inner wall 562 of the upright table groove 56 to the outer surface of the front end frame 52. Similarly, the holding groove 58 linearly extends from the first inner wall 561 of the upright table groove 56 to the outer surface of the front end frame 52. Therefore, when cleaning the endoscope 10 after removing the upright table attachment 90, the user can easily perform flushing and the like on the inner surfaces of the engaging recess 57 and the holding groove 58.

[0141] The engaging recess 57 can also be a groove that is formed from the second inner wall 562 to a length capable of engaging with the engaging protrusion 727 and does not reach the circumferential surface of the front end frame 52. Even such a groove can be cleaned on its inner surface by using a cleaning brush of an appropriate size and the like.

[0142] The holding groove 58 can also be a groove that is formed from the first inner wall 561 to a length capable of inserting the first protrusion 451 and the like and does not reach the circumferential surface of the front end frame 52. Even such a groove can be cleaned on its inner surface by using a cleaning brush of an appropriate size and the like. When the holding groove 58 does not reach the circumferential surface of the front end frame 52, the holding body 70 does not have the third plate 73.

[0143] The holding body 70 can also not have the dividing groove 728. For example, by replacing the setting of the dividing groove 728 and making the second plate 72 in this part into a thin wall, the second plate 72 can be flexed near the stopper protrusion 729 and the engaging protrusion 727.

[0144] According to the present embodiment, it is possible to provide a forward-oblique endoscope 10 such as an ultrasonic endoscope that can be easily cleaned by removing the upright table attachment 90 after endoscopy. According to the present embodiment, the upright table attachment 90 is supplied in a state of being mounted on the disassembly and assembly jig 95, so the installation is easy.

[0145] According to the present embodiment, the upright table attachment 90 can be easily removed using the disassembly and assembly jig 95. Since the upright table attachment 90 does not come off the disassembly and assembly jig 95, it is possible to prevent the incorrect reuse of the upright table attachment 90.

[0146] [Embodiment 2]

[0147] This embodiment relates to an upright table attachment 90 that is removed from the endoscope 10 using a rod-shaped second jig 92. Description of parts identical to those of Embodiment 1 is omitted.

[0148] Figure 40 It is a perspective view of the holder 70 of Embodiment 2. The holder 70 of this embodiment has a jig hole 731 that penetrates the third plate 73.

[0149] Figure 41 It is an explanatory diagram showing a method of removing the upright table attachment 90 of Embodiment 2 from the endoscope 10. The second jig 92 of this embodiment has a stepped round bar shape. The thin-diameter portion at the front end of the second jig 92 can be inserted into the jig hole 731. The second jig 92 can be integrated with the first jig 91 or separated, similarly to Embodiment 1.

[0150] The user inserts the second jig 92 into the jig hole 731 and presses the engaging claw 711, whereby the first plate 71 elastically deforms toward the second plate 72 side, and the engagement between the engaging claw 711 and the inner wall claw 581 is disengaged. In this state, the user moves the second jig 92 Figure 41 to the right in the figure, thereby removing the upright table attachment 90 from the endoscope 10. The user can pull out the second jig 92 from the upright table attachment 90.

[0151] According to the present embodiment, the upright table attachment 90 can be removed from the second jig 92 without being damaged, so it can be reused after cleaning and sterilization.

[0152] [Embodiment 3]

[0153] This embodiment relates to an endoscope 10 that does not have an ultrasonic probe 61. Description of parts identical to those of Embodiment 1 is omitted.

[0154] Figure 42It is a perspective view of the front end of the insertion portion 30 of Embodiment 3. The endoscope 10 of the present embodiment is a forward-oblique type conventional endoscope that does not have an ultrasonic probe 61. Compared with the ultrasonic endoscope of Embodiment 1, the length of the front end is short, so the burden on the patient's body can be reduced.

[0155] The technical features (constituent elements) described in each embodiment can be combined with each other, and new technical features can be formed by the combination.

[0156] It should be considered that the embodiments disclosed this time are illustrative in all aspects and not restrictive. The scope of the present invention is shown not by the above meaning but by the claims, and is intended to include all changes within the meaning and scope equivalent to the claims.

[0157] (Appendix 1)

[0158] An upright table attachment that can be detached from and attached to an endoscope

[0159] The endoscope includes: an inclined surface that is inclined with respect to the longitudinal direction of the insertion portion; an upright table groove that has a first inner wall and a second inner wall opposed to the first inner wall and opens on the inclined surface; and a rod that is rotatably provided inside the upright table groove.

[0160] The upright table attachment includes:

[0161] A holding body that has an inclined panel covering a part of the inclined surface, a first plate that stands up from an edge of the inclined panel and is arranged along the first inner wall, and a second plate that abuts against the second inner wall; and

[0162] An upright table that is rotatably supported between the first plate and the second plate and has a rod connection portion connected to the rod.

[0163] (Appendix 2)

[0164] According to the upright table attachment described in Appendix 1, the holding body has a connecting portion connecting the inclined panel and the second plate.

[0165] (Appendix 3)

[0166] According to the upright table attachment described in Appendix 2, the second plate has a stopper projection that protrudes toward the first plate side,

[0167] The rotation of the upright table is restricted by the stopper projection and the connecting portion.

[0168] (Appendix 4)

[0169] According to the upright table attachment described in any one of Appendices 1 to 3, the second plate is arranged parallel to the longitudinal direction.

[0170] (Appendix 5)

[0171] The upright table attachment according to any one of Appendices 1 to 4, wherein the second plate has an engaging projection that engages with an engaging recess provided on the second inner wall.

[0172] (Appendix 6)

[0173] The upright table attachment according to any one of Appendices 1 to 5, wherein the first plate has an engaging claw that engages with an inner wall claw provided on the first inner wall side.

[0174] (Appendix 7)

[0175] The upright table attachment according to Appendix 6, wherein the engaging claw projects from a main surface of the first plate on a side not facing the second plate and both side surfaces of the first plate.

[0176] (Appendix 8)

[0177] The upright table attachment according to any one of Appendices 1 to 7, wherein the inclined panel has a U-shaped cutout portion that opens at an edge where the first plate stands up.

[0178] (Appendix 9)

[0179] The upright table attachment according to any one of Appendices 1 to 8, wherein the holding body has a third plate that stands up from an edge of the inclined panel and faces the first plate.

[0180] (Appendix 10)

[0181] An endoscope, comprising:

[0182] An inclined surface that is inclined with respect to the longitudinal direction of the insertion portion;

[0183] An upright table groove having a first inner wall and a second inner wall opposed to the first inner wall, and opening on the inclined surface;

[0184] A rod supported by the second inner wall and rotatable within the upright table groove; and

[0185] An inner wall claw provided on the first inner wall side and engaging with an engaging claw provided on an upright table attachment, the upright table attachment having an upright table that engages with the rod.

[0186] (Appendix 11)

[0187] The endoscope according to Appendix 10, wherein the inner wall claw is provided on a side surface of a holding groove that penetrates the first inner wall and opens on the inclined surface.

[0188] (Appendix 12)

[0189] The endoscope according to Appendix 10 or 11 has an engaging recess on the second inner wall that engages with the engaging claws provided on the upright table attachment.

[0190] (Appendix 13)

[0191] The endoscope according to Appendix 12 has the engaging recess in a groove shape.

[0192] (Appendix 14)

[0193] The endoscope according to any one of Appendices 10 to 13 has an ultrasonic probe on the front end side of the upright table groove.

[0194] (Appendix 15)

[0195] The endoscope according to any one of Appendices 10 to 14 has an observation optical system with forward oblique viewing.

[0196] (Appendix 16)

[0197] An upright table attachment that can be detached from and attached to the endoscope,

[0198] The endoscope includes: an inclined surface that is inclined with respect to the longitudinal direction of the insertion portion; an upright table groove that has a first inner wall and a second inner wall opposed to the first inner wall and opens on the inclined surface; and a rod that is rotatably provided inside the upright table groove,

[0199] The upright table attachment includes:

[0200] A holding body having an inclined panel that covers a part of the inclined surface, a first plate that stands up from an edge of the inclined panel and is arranged along the first inner wall, and a second plate that abuts against the second inner wall. The inclined panel has a U-shaped cutout portion that opens at the edge where the first plate stands up; and

[0201] An upright table that is rotatably supported between the first plate and the second plate and has a rod connection portion connected to the rod,

[0202] The upright table attachment can be detached from the insertion portion by inserting and then pulling out a second jig. The second jig has: a second abutting portion that abuts against the inclined panel; a first protrusion that protrudes from the second abutting portion and penetrates the cutout portion; a second protrusion that protrudes from the second abutting portion between the first plate and the second plate; and a fourth holding protrusion that protrudes from the front end of the second protrusion toward the first plate side.

[0203] (Appendix 17)

[0204] A disassembly and assembly jig for disassembling and assembling an attachment of a riser table, wherein the attachment of the riser table can be disassembled and assembled relative to an endoscope.

[0205] The endoscope includes: an inclined surface that is inclined with respect to the longitudinal direction of the insertion portion; a riser table groove having a first inner wall and a second inner wall opposed to the first inner wall and opening on the inclined surface; and a rod rotatably provided inside the riser table groove.

[0206] The attachment of the riser table includes:

[0207] A holding body having an inclined panel covering a part of the inclined surface, a first plate standing up from an edge of the inclined panel and disposed along the first inner wall, and a second plate abutting against the second inner wall, wherein the inclined panel has a U-shaped cutout portion opening at the edge where the first plate stands up; and

[0208] A riser table rotatably supported between the first plate and the second plate and having a rod connection portion connected to the rod.

[0209] In the disassembly and assembly jig, a first jig is connected to a second jig.

[0210] The first jig has: a first abutting portion abutting against the inclined panel; an elastic plate protruding from the first abutting portion between the first plate and the second plate; and a first holding protrusion protruding from the front end of the elastic plate toward the first plate side and abutting against the front end surface of the first plate.

[0211] The second jig has: a second abutting portion abutting against the inclined panel; a first protrusion protruding from the second abutting portion and passing through the cutout portion; a second protrusion protruding from the second abutting portion between the first plate and the second plate; and a fourth holding protrusion protruding from the front end of the second protrusion toward the first plate side.

[0212] Explanation of reference numerals

[0213] 10 Endoscope 12 Flexible section 13 Bending section 16 First connector 17 Second connector 18 First hose 19 Second hose 20 Operation section 21 Erect operation lever 22 Channel inlet 23 Bending knob 25 Water supply button 30 Insertion section 34 Channel 36 Observation window 37 Lighting window 41 First abutting section 42 Second abutting section 43 Elastic plate 431 First holding protrusion 442 Second holding protrusion 443 Third holding protrusion 451 First protrusion 452 Second protrusion 454 Fourth holding protrusion 52 Front end frame 53 Balloon fixing groove 54 Rod 55 Inclined surface 551 First inclined surface 552 Second inclined surface 56 Erecting table groove 561 First inner wall 562 Second inner wall 57 Engaging recess 58 Holding groove 581 Inner wall claw 582 Step portion 61 Ultrasonic probe 63 Ultrasonic transmission and reception surface 64 Balloon water supply and drainage groove 70 Holding body 71 First plate 711 Engaging claw 72 Second plate 721 First side 722 Second side 723 Third side 724 Fourth side 725 Fifth side 727 Engaging protrusion 728 Partition groove 729 Stopping protrusion 73 Third plate 731 Clamping hole 74 Connecting portion 75 Inclined panel 76 Erecting table mounting hole 77 Cutout portion 80 Erecting table 81 Rod connecting portion 82 Erecting table shaft 83 Erecting portion 831 First erecting portion 832 Second erecting portion 833 Circular portion 84 Concave pit portion 85 Shaft fixing portion 90 Erecting table accessory 91 First clamp 92 Second clamp 95 Disassembly and assembly clamp 96 Gripping portion 98 Balloon 99 Sterilization package.

Claims

1. An endoscope assembly, comprising an endoscope, a stand attachment that can be disassembled and assembled relative to the endoscope, and a first clamp, The endoscope includes: an inclined surface that is inclined with respect to the longitudinal direction of the insertion portion; a stand groove that has a first inner wall and a second inner wall opposed to the first inner wall and opens on the inclined surface; and a rod that is rotatably provided inside the stand groove, The stand attachment includes: Retention body, having an inclined panel, a first plate and a second plate, the inclined panel covering a part of the inclined surface, the first plate standing up from an edge of the inclined panel and disposed along the first inner wall, and the second plate abutting against the second inner wall; And A stand that is rotatably supported between the first plate and the second plate and has a rod connection portion connected to the rod, The stand attachment is mounted on the first clamp and supplied. The first clamp has: a first abutting portion that abuts against the inclined panel; an elastic plate that protrudes from the first abutting portion between the first plate and the second plate; And a first holding protrusion that protrudes from the front end of the elastic plate toward the first plate side and abuts against the front end surface of the first plate.

2. The endoscope assembly according to claim 1, wherein, The holding body has a connection portion connecting the inclined panel and the second plate, The elastic plate is disposed between the connection portion and the stand.

3. The endoscope assembly according to claim 1, wherein, The surface of the second plate opposed to the first plate abuts against the side surface of the second holding protrusion, and the second holding protrusion protrudes in parallel with the elastic plate from the first abutting portion.

4. The endoscope assembly according to claim 3, wherein, The holding body has a connection portion connecting the inclined panel and the second plate, The second holding protrusion is disposed between the connection portion and the stand.

5. The endoscope assembly according to any one of claims 1 to 4, wherein, The inclined panel has a U-shaped cutout portion that opens at an edge where the first plate stands up, The first clamp has a third holding protrusion that penetrates the cutout portion from the first abutting portion.

6. The endoscope assembly according to claim 5, wherein, The stand attachment already installed on the endoscope can be removed from the insertion portion by inserting and then pulling out a second clamp, The second clamp has: A second abutting portion that abuts against the inclined panel; A first protrusion that protrudes from the second abutting portion and penetrates the cutout portion; A second protrusion that protrudes from the second abutting portion between the first plate and the second plate; And A fourth holding protrusion that protrudes from the front end of the second protrusion toward the first plate side.

7. The endoscope assembly according to claim 6, wherein, The first plate has a locking claw that protrudes from the front end from a side that does not face the second plate and the side surface of the first plate, The end of the locking claw engages with an inner wall claw provided on the first inner wall, When the first protrusion is inserted into the cutout portion, the central portion of the locking claw is pushed by the front end of the first protrusion, whereby the first plate is deformed and the engagement between the locking claw and the inner wall claw is disengaged.

8. The endoscope assembly according to claim 7, wherein, When the first protrusion is inserted into the notch portion and then pulled out, the engaging claw and the fourth holding protrusion engage with each other, and are removed from the endoscope together with the second clamp.

9. The endoscope assembly according to any one of claims 6 to 8, wherein the first plate contacts the surface of the first protrusion facing the second protrusion, the second plate contacts the surface of the second protrusion on the side opposite to the first protrusion.

10. The endoscope assembly according to any one of claims 6 to 8, wherein the second clamp is provided at one end of the first clamp.

11. The endoscope assembly according to any one of claims 1 to 4, wherein the upright table attachment is supplied in a state of being enclosed in an independent packaging material.

12. The endoscope assembly according to claim 11, wherein the upright table attachment is supplied in a sterilized state.

13. The endoscope assembly according to any one of claims 1 to 4, wherein the endoscope further comprises: an inner wall claw provided on the first inner wall and engaging with an engaging claw provided on the upright table attachment, the upright table attachment having an upright table that engages with the rod; and a stepped portion provided closer to the inside than the inner wall claw of the first inner wall, and the distance between the stepped portion and the second inner wall is reduced compared to the front end side of the insertion portion.

14. A method for installing an upright table attachment, comprising: installing the upright table attachment on a first clamp, the upright table attachment comprising: a holding body having an inclined panel, a first plate and a second plate, the first plate standing up from an edge of the inclined panel and having an engaging claw at a front end, the second plate being opposed to the first plate; and an upright table rotatably supported between the first plate and the second plate and having a rod connecting portion, the first clamp having: a first abutting portion abutting against the first plate of the inclined panel; an elastic plate protruding from the first abutting portion between the first plate and the second plate; and a first holding protrusion protruding from a front end of the elastic plate toward the first plate side and protruding more toward the front end side than a front end surface of the first plate; inserting the first plate and the second plate together with the elastic plate into an upright table groove of an endoscope, the endoscope comprising: an inclined surface inclined with respect to a longitudinal direction of an insertion portion; the upright table groove having a first inner wall and a second inner wall opposed to the first inner wall and opening at the inclined surface; and a rod rotatably provided inside the upright table groove; bending a front end of the elastic plate toward the second plate side by a stepped portion provided in the upright table groove, and bending the first plate toward the second plate side by contact between the engaging claw and the first inner wall; inserting the engaging claw into a position closer to the inside than an inner wall claw provided on the first inner wall; engaging the rod connecting portion and the rod, and engaging the inner wall claw and the engaging claw; and installing the upright table attachment on the endoscope by pulling back the first clamp.

15. A method for removing an upright table attachment, comprising: Attach the upright table attachment to the endoscope, the endoscope comprising: an inclined surface inclined with respect to the longitudinal direction of the insertion portion; an upright table groove having a first inner wall and a second inner wall opposed to the first inner wall and opening on the inclined surface; and a rod rotatably provided inside the upright table groove, the upright table attachment comprising: a holding body having an inclined panel, a first plate, and a second plate, the inclined panel covering a part of the inclined surface, the first plate standing up from an edge of the inclined panel and being arranged along the first inner wall, and the second plate abutting against the second inner wall; and an upright table rotatably supported between the first plate and the second plate and having a rod connection portion connected to the rod; After using the endoscope, insert a second protrusion of the second jig between the first plate and the second plate, the second jig having: a second abutting portion abutting against the inclined panel; and a first protrusion and the second protrusion protruding from the second abutting portion; Push a locking claw provided at the front end of the first plate with the front end of the first protrusion, thereby bending the first plate toward the second plate side; By pulling back the second jig, the locking claw and a fourth holding protrusion are engaged, the fourth holding protrusion protruding from the front end of the second protrusion toward the first plate side; and Detach the upright table attachment together with the second jig from the endoscope.

Images