Upright Stand Attachment and Endoscope

Abstract

Provided is a stand attachment that can be removed after endoscopic examination to facilitate cleaning of the endoscope. The stand-up table accessory is a stand-up table accessory (90) that can be detached from an endoscope, the endoscope comprising: an inclined surface inclined relative to the longitudinal direction of the insertion portion (30); a stand-up table groove (56) having a first inner wall (561) and a second inner wall (562) opposite to the first inner wall (561) and opening on the inclined surface; and a rod (54) rotatably arranged on the inner side of the stand-up table groove (56), the stand-up table accessory comprising: a retaining body (70) having an inclined panel (75) covering a portion of the inclined surface, a first plate rising from the edge of the inclined panel (75) and arranged along the first inner wall (561), and a second plate (72) abutting against the second inner wall (562); and a stand-up table (80) rotatably supported between the first plate and the second plate (72), having a rod connecting portion connected to the rod (54).

Description

Technical Field

[0001] The present invention relates to an erection table accessory and an endoscope. Background Art

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

[0003] Patent Document 1: Japanese Patent Application Publication No. 2018-118080 Summary of the Invention

[0004] Technical problem to be solved by the invention

[0005] However, there are endoscopes 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-viewing endoscope having an optical field of view obliquely forward with respect to the insertion portion.

[0006] In one aspect, an object is to provide a stand attachment or the like that can be removed after endoscopic examination to facilitate cleaning of the endoscope.

[0007] Solutions for solving technical problems

[0008] The standing table accessory is a standing table accessory that can be detached from the endoscope, and the endoscope comprises: an inclined surface, which is inclined relative to the longitudinal direction of the insertion portion; a standing table groove, which has a first inner wall and a second inner wall opposite to the first inner wall and is open on the inclined surface; and a rod rotatably arranged on the inner side of the standing table groove, the standing table accessory comprises: a holding body, which has an inclined panel covering a portion of the inclined surface, a first plate standing up from the edge of the inclined panel and arranged along the first inner wall, and a second plate abutting the second inner wall; and a standing table, which is rotatably supported between the first plate and the second plate and has a rod connecting portion connected to the rod.

[0009] Effects of the Invention

[0010] In one aspect, a stand attachment or the like is provided that can be removed after endoscopic examination to facilitate cleaning of the endoscope. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is an external view of an endoscope.

[0012] Figure 2 This is a perspective view of the front end of the insertion section with the stand attachment installed.

[0013] Figure 3This is a perspective view of the upright stand attachment and the front end of the insertion portion with the upright stand attachment removed.

[0014] Figure 4 This is a perspective view of the stand accessories.

[0015] Figure 5 This is a front view of the insertion section with the stand attachment installed.

[0016] Figure 6 is based on Figure 5 A view of the insertion part in the VI direction.

[0017] Figure 7 is based on Figure 5 A view of the insertion portion in the VII direction.

[0018] Figure 8 is based on Figure 5 Partial cross-sectional view of the insertion portion of line VIII-VIII.

[0019] Figure 9 This is an explanatory diagram for explaining the operation of the raising table.

[0020] Figure 10 is based on Figure 6 Partial cross-sectional view of the insertion portion of line XX.

[0021] Figure 11 is based on Figure 7 Partial cross-sectional view of the insertion portion of line XI-XI.

[0022] Figure 12 This is a front view of the insertion section with the stand attachment removed.

[0023] Figure 13 is based on Figure 12 A view of the insertion portion of the stand attachment removed from the XIII direction.

[0024] Figure 14 It is a three-dimensional diagram of the retaining body.

[0025] Figure 15 It is a three-dimensional diagram of the retaining body.

[0026] Figure 16 is based on Figure 14 A view of the holding body in the XVI direction.

[0027] Figure 17 is based on Figure 16 A cross-sectional view of the retaining body taken along line XVII-XVII.

[0028] Figure 18 It is a three-dimensional diagram of the stand.

[0029] Figure 19 is based on Figure 18 XIX direction view of the vertical platform.

[0030] Figure 20 is based on Figure 18 A view of the vertical platform in the XX direction.

[0031] Figure 21 This is an explanatory diagram explaining how to assemble the stand accessories.

[0032] Figure 22 This is an explanatory diagram explaining how to assemble the stand attachment.

[0033] Figure 23 This is an explanatory diagram explaining how to assemble the stand attachment.

[0034] Figure 24 This is an explanatory diagram for explaining the supply form of the rising table accessories.

[0035] Figure 25 It is a three-dimensional diagram of the disassembly and assembly of the fixture.

[0036] Figure 26 It is a three-dimensional diagram of the disassembly and assembly of the fixture.

[0037] Figure 27 is based on Figure 25 XXVII direction view of the disassembly and assembly fixture.

[0038] Figure 28 This is an explanatory diagram for explaining how to attach the rising table attachment to the first fixture.

[0039] Figure 29 This is an explanatory diagram for explaining how to attach the rising table attachment to the first fixture.

[0040] Figure 30 This is an explanatory diagram for explaining how to attach the rising table attachment to the first fixture.

[0041] Figure 31 This is an explanatory diagram explaining how to attach the standing stand attachment to an endoscope.

[0042] Figure 32 This is an explanatory diagram explaining how to attach the standing stand attachment to an endoscope.

[0043] Figure 33 This is an explanatory diagram explaining how to attach the standing stand attachment to an endoscope.

[0044] Figure 34 This is an explanatory diagram explaining how to attach the standing stand attachment to an endoscope.

[0045] Figure 35 This is an explanatory diagram explaining how to attach the standing stand attachment to an endoscope.

[0046] Figure 36 This is an explanatory diagram explaining how to remove the standing stand attachment from the endoscope.

[0047] Figure 37 This is an explanatory diagram explaining how to remove the standing stand attachment from the endoscope.

[0048] Figure 38 This is an explanatory diagram explaining how to remove the standing stand attachment from the endoscope.

[0049] Figure 39 This is an explanatory diagram explaining how to remove the standing stand attachment from the endoscope.

[0050] Figure 40 This is a perspective view of a holding body according to a second embodiment.

[0051] Figure 41 This is an explanatory diagram for explaining a method for removing the rising stand attachment according to the second embodiment from the endoscope.

[0052] Figure 42 This is a perspective view of the distal end of the insertion portion according to the third embodiment. DETAILED DESCRIPTION

[0053] [Implementation Method 1]

[0054] Figure 1 1 is an external view of the endoscope 10. The endoscope 10 of the present embodiment is an ultrasonic endoscope having a convex ultrasonic probe 61 at its distal end.

[0055] The endoscope 10 includes an operating unit 20 and an insertion portion 30. The operating unit 20 includes a vertical operation lever 21, a channel inlet 22, a water supply button 25, and two bending knobs 23. The operating unit 20 is connected to a video processor, a light source device, a display device, and the like (not shown) via a first hose 18 and a first connector 16. The operating unit 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.

[0056] The insertion portion 30 includes an elongated flexible portion 12, one end of which is connected to the operating portion 20. The ultrasound probe 61 is connected to the other end of the flexible portion 12 via a bending portion 13 and a distal end frame 52. The bending portion 13 is connected to the bending knob 23 via a bending wire inserted through the interior of the flexible portion 12 and bends in response to operation of the bending knob 23.

[0057] The channel inlet 22 and the distal end frame 52 are connected by a tubular channel 34. An illumination optical system and an observation optical system used for optical image observation are installed inside the distal end frame 52. The structure of the distal end frame 52 will be described in detail later.

[0058] The endoscope 10 has an insertion portion 30 that is inserted into the digestive tract, for example, through the patient's mouth, and is used for optical imaging, ultrasonic imaging, and various other procedures. In the following description, the longitudinal direction of the insertion portion 30 is referred to as the insertion direction. Similarly, the side closer to the operating portion 20 along the insertion direction is referred to as the operating portion side, and the side farther from the operating portion 20 is referred to as the distal end side.

[0059] Figure 2 This is a perspective view of the distal end of the insertion section 30 with the erection base attachment 90 attached. The structure of the erection base attachment 90 will be described later. The ultrasonic probe 61 is a so-called convex type, having a convex ultrasonic transceiver wavefront 63. The ultrasonic probe 61 has two balloon water supply and drainage grooves 64 arranged perpendicular to the insertion direction, located closer to the operating portion than the ultrasonic transceiver wavefront 63.

[0060] The distal end frame 52 is generally cylindrical and has a second inclined surface 552 on the distal end, tilted relative to the axial direction. The ultrasonic wave transmission and reception surface 63 and the second inclined surface 552 are located on the same side relative to the insertion direction. The second inclined surface 552 is provided with an observation window 36 and an illumination window 37. The endoscope 10 is a so-called forward oblique viewing type, illuminating and observing the obliquely forward direction relative to the insertion direction. A balloon securing groove 53 is provided on the outer periphery of the distal end frame 52.

[0061] Figure 3 It is a perspective view of the erecting stand attachment 90 and the distal end of the insertion portion 30 from which the erecting stand attachment 90 is removed.

[0062] The front frame 52 is divided into left and right sections by a generally U-shaped upright groove 56 extending from the front end toward the operating portion. The passage 34 opens at the end of the upright groove 56 on the operating portion side. The upright groove 56 includes 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.

[0063] The first inclined surface 551 and the second inclined surface 552 are substantially parallel and are located closer to the operating portion than the second inclined surface 552. In the following description, the first inclined surface 551 and the second inclined surface 552 may be collectively referred to as the inclined surface 55. The rising platform groove 56 opens in the inclined surface 55.

[0064] Figure 4 It is a perspective view of the standing stand attachment 90. Figure 4 Indicates from Figure 3 90mm stand attachment for viewing in different directions. Figure 3 and Figure 4 The outline of the structure of the standing stand attachment 90 will be described.

[0065] The erection stand attachment 90 includes a holding body 70 and an erection stand 80. The holding body 70 includes a generally triangular inclined panel 75, a first plate 71, a second plate 72, and a third plate 73. The first plate 71 and the third plate 73 protrude generally perpendicularly from both sides of the inclined panel 75. The second plate 72 is generally parallel to the first plate 71. The inclined panel 75 and the second plate 72 are connected via a connecting portion 74.

[0066] The front end of the first plate 71 is provided with engaging claws 711 that protrude from three sides except the side facing the second plate 72. The inclined panel 75 is provided with a generally U-shaped cutout 77 extending from the second plate 72 side toward the third plate 73 side. The cutout 77 divides the first plate 71 into two parts.

[0067] The second plate 72 is substantially pentagonal. The first side 721 of the second plate 72 (refer to Figure 15 ) is connected to the connecting portion 74. The second side 722 (see Figure 15 ) is substantially parallel to the inclined panel 75. From the third side 723 (refer to Figure 15 ) is provided substantially perpendicularly to the second plate 72. A dividing groove 728 having a width substantially the same as the thickness of the second plate 72 is provided on the surface of the second plate 72 facing the first plate 71. The stopping protrusion 729 is arranged on the fourth side 724 (refer to Figure 15 ) and the dividing groove 728. An engaging protrusion 727 facing the dividing groove 728 is arranged on the surface opposite to the stop protrusion 729.

[0068] The first side 721 and the second side 722, as well as the third side 723 and the fourth side 724 are substantially perpendicular. Similarly, the fourth side 724 and the fifth side 725 adjacent to the fourth side 724 (see Figure 15 ) is also substantially vertical. The stand 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 supporting the stand 80 will be described later.

[0069] The stand 80 has a stand 83 with a spoon-shaped recess 84 on one side. A groove-shaped rod connection 81 with openings on both sides is provided at the end of the stand 83 away from the recess 84. The structure of the stand 80 will be described in detail later.

[0070] The third plate 73 is smoothly curved, as shown in FIG. Figure 2When the erection stand attachment 90 is attached to the front end frame 52, it smoothly continues with the surface of the front end frame 52. Furthermore, the surface of the inclined panel 75 is substantially flush with the second inclined surface 552. Specifically, the first inclined surface 551 is positioned closer to the operating portion than the second inclined surface 552 by the thickness of the inclined panel 75.

[0071] Figure 5 This is a front view of the insertion portion 30 with the standing base attachment 90 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 of line VIII-VIII. Figure 9 It is an explanatory diagram for explaining the operation of the raising stand 80 . Figure 10 is based on Figure 6 A partial cross-sectional view of the insertion portion 30 taken along line XX. Figure 11 is based on Figure 7 A partial cross-sectional view of the insertion portion 30 taken along line XI-XI.

[0072] Figure 12 It is a front view of the insertion portion 30 with the standing stand attachment 90 removed. Figure 13 is based on Figure 12 The XIII direction is a view of the insertion portion 30 with the stand attachment 90 removed. Figures 8 to 11 In the cross-sectional view of FIG, the internal structures of the distal end frame 52, the ultrasonic probe 61, and the bending portion 13 are omitted from illustration.

[0073] like Figure 12 As shown, the first inner wall 561 is stepped toward the operating portion and approaches the second inner wall 562. Figure 3 and Figure 12 As shown, a rectangular columnar rod 54 protrudes from a portion of the first inner wall 561 proximal 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 operating lever 21. The rotation axis of the rod 54 passes within the rod 54 and is substantially perpendicular to the insertion direction. The structure for operating the rod 54 in conjunction with the erection operating lever 21 is conventionally employed, and therefore, its description is omitted.

[0074] 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 stand 80. Figure 9The user can rotate the erection stand 80 by operating the erection operation lever 21 to adjust the direction of the treatment instrument protruding at the distal end through the channel 34.

[0075] like Figure 10 As shown, the raised portion 83 has a width substantially equal to the distance between the first plate 71 and the second plate 72. Therefore, treatment instruments protruding from the passage 34 do not fall between the raised portion 83 and the first plate 71 or between the raised portion 83 and the second plate 72. The rotation range of the raised stand 80 is limited by the stopper protrusion 729 and the connecting portion 74.

[0076] 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.

[0077] like Figure 3 and Figure 13 As shown, a retaining groove 58 is provided in the first inclined surface 551, which is substantially perpendicular to the first inner wall 561. The retaining groove 58 has a T-shaped cross-section, with the longitudinal rod facing the first inclined surface 551 and the transverse rod disposed substantially parallel to the first inclined surface 551. Two substantially perpendicular inner wall claws 581 are formed at the boundary between the T-shaped longitudinal rod portion and the transverse rod portion.

[0078] 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 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 contact or have a small gap. Although not shown in the figure, Figure 11 The other inner wall claw 581 corresponding to the inner wall claw 581 shown is also engaged with the other end of the engaging claw 711 .

[0079] like Figure 5 and Figure 10 As shown, the engaging protrusion 727 engages with the engaging recess 57. The engaging protrusion 727 engages while being pressed against the surface of the front end side of the engaging recess 57, thereby securing the retaining body 70 to the front end frame 52 by friction. As described above, the front end frame 52 and the retaining body 70 engage at three locations, namely, the two inner wall claws 581 and the engaging recess 57.

[0080] Figure 14 and Figure 15 It is a perspective view of the holding body 70 . Figure 16 is based on Figure 14A view of the retaining body 70 in the XVI direction. Figure 17 is based on Figure 16 A cross-sectional view of the retaining body 70 taken along line XVII-XVII. Figures 14 to 17 The structure of the holding body 70 will be described.

[0081] A stand mounting hole 76 is provided near the fifth side 725 of the second plate 72, near the fourth side 724. Stand mounting hole 76 is formed by a generally U-shaped groove formed at one point within a circular hole. The generally U-shaped groove is provided at the edge of the circular hole facing away from the fourth side 724. A countersunk hole is provided around stand mounting hole 76, forming a circular depression on the side not facing the first plate 71.

[0082] The end surface of the connecting portion 74 on the first plate 71 side is spaced from the first plate 71 by a distance substantially equal to the thickness of the second plate 72. Thus, the connecting portion 74 does not hinder elastic deformation of the first plate 71, which will be described later.

[0083] Figure 18 It is a perspective view of the standing platform 80. Figure 19 is based on Figure 18 A view of the rising platform 80 in the XIX direction. Figure 20 is based on Figure 18 The XX direction of the vertical stand 80 is shown in FIG. Figures 18 to 20 The structure of the standing stand 80 will be described.

[0084] like Figures 18 to 20 As shown, the stand 80 has a stand shaft 82 in addition to the aforementioned stand portion 83. The stand portion 83 is generally L-shaped and comprises a first stand portion 831 having a recessed portion 84 formed on one surface, and a second stand portion 832 projecting from the end of the first stand portion 831 toward the same side as the surface of the first stand portion 831 having the recessed portion 84.

[0085] The surface of the first rising portion 831 having the recessed portion 84 is smoothly continuous with the adjacent surface of the second rising portion 832. A rounded portion 833 is provided on the surface of the second rising portion 832 adjacent to the surface continuous with the recessed portion 84, protruding one level from the adjacent surface of the first rising portion 831.

[0086] The rod connecting portion 81 is groove-shaped and opens on two surfaces: the end surface of the second rising portion 832 opposite to the side continuous with the first rising portion 831, and the surface opposite to the side provided with the rounded portion 833. The inner surface of the rod connecting portion 81 is generally rectangular, with two adjacent sides being open surfaces.

[0087] The upright shaft 82 is cylindrical and protrudes from one side of the second upright portion 832. The central axis of the upright shaft 82 extends through the rod connecting portion 81. A substantially rectangular plate-shaped shaft stop 85 protrudes in one direction from the circumference of the upright shaft 82 near the end. The shaft stop 85 protrudes perpendicularly to the two opposing inner surfaces of the rod connecting portion 81 and toward the side of the two inner surfaces closest to the recessed portion 84.

[0088] Figures 21 to 23 This is an explanatory diagram for explaining how to assemble the stand attachment 90. Figures 21 to 23 The structure and assembly method of the raising table attachment 90 will be described.

[0089] like Figure 21 As shown, the stand shaft 82 is inserted into the stand mounting hole 76 from the third plate 73 side while the substantially U-shaped groove provided in the stand mounting hole 76 and the shaft stopper 85 are aligned in direction. Figure 22 As shown, the stand 80 is centered around the stand shaft 82. Figure 22 By rotating, the direction of the substantially U-shaped groove and the shaft stopper 85 deviates, and the upright platform 80 does not separate from the holding body 70.

[0090] The second plate 72 has a stopper protrusion 729 near the Figure 22 The inner side of the bend, so Figure 23 The rising portion 83 is disposed between the stopper protrusion 729 and the connecting portion 74. The above completes the assembly of the rising stand attachment 90.

[0091] The circular portion 833 and the portion of the second plate 72 that contacts the circular portion 833 are preferably smooth surfaces. This allows the stand 80 to rotate smoothly. The presence of the circular portion 833 prevents the stand 83 from contacting the second plate 72 during rotation.

[0092] The second plate 72 is provided with a dividing groove 728, so that the second plate 72 is easily bent and the stand 80 can be easily moved from the second plate 72 to the second plate 72. Figure 22 The status shown moves to Figure 23 After the erection base attachment 90 is attached to the insertion portion 30, the second plate 72 is held within the erection base groove 56, preventing the second plate 72 from bending. Consequently, the rotational range of the erection base 80 is limited by the stopper protrusion 729 and the connecting portion 74.

[0093] Figure 24 This is an explanatory diagram illustrating the supply form of the erection table attachment 90. The erection table attachment 90 is attached to a detachable jig 95, sealed one by one in a single package such as a sterilization box 99, and supplied sterilized by any sterilization means such as electron beam sterilization.

[0094] Figure 25 and Figure 26 It is a perspective view of the disassembly and assembly jig 95. Figure 27 is based on Figure 25 XXVII direction of the disassembly fixture 95. Figures 24 to 27 The structure of the attaching and detaching jig 95 will be described.

[0095] The detachable clamp 95 has a first clamp 91 at one end of a square column-shaped gripping portion 96 and a second clamp 92 at the other end. Figure 24 As shown, the erection stand attachment 90 is supplied mounted on a first clamp 91. The user mounts the erection stand attachment 90 on the endoscope 10 using the first clamp 91. The second clamp 92 is used to remove the erection stand attachment 90 from the endoscope 10 after endoscopic examination.

[0096] The grip 96 has a thickness and length that makes it easy for users wearing medical gloves to operate. The characters "PUSH" are written on the grip 96's first clamp 91 side, and "PULL" are written on the second clamp 92 side. This allows the user to easily distinguish between the first clamp 91 side and the second clamp 92 side. These characters are convex, providing a slip-resistant function when the user attaches or detaches the stand attachment 90.

[0097] use Figure 24 、 Figure 25 and Figure 27 The structure of the first clamp 91 will be described. The second holding protrusion 442, the elastic plate 43, and the third holding protrusion 443 are arranged in this order and protrude from the first contact portion 41 provided on the end surface of the grip portion 96.

[0098] The second retaining protrusion 442 is plate-shaped, with another smaller triangle extending continuously near the vertex of one side of the triangle whose base is connected to the first abutting portion 41. The elastic plate 43, when viewed from above, has substantially the same shape as the second retaining protrusion 442. The second retaining protrusion 442 and the elastic plate 43 are arranged parallel to each other at approximately the same position in the thickness direction, spaced apart from each other.

[0099] The elastic plate 43 has a first retaining protrusion 431 at its front end, which protrudes toward the third retaining protrusion 443. The third retaining protrusion 443 has a square prism shape, with one side surface arranged parallel to the main surface of the elastic plate 43. The end surface of the third retaining protrusion 443 is located closer to the first abutting portion 41 than the end of the first retaining protrusion 431 on the first abutting portion 41 side.

[0100] use Figure 24 、 Figure 26 and Figure 27The structure of the second clamp 92 will be described. A first protrusion 451 and a second protrusion 452 protrude from the second contact portion 42 provided on the end surface of the grip portion 96 .

[0101] The second protrusion 452 has a plate-like shape in a plan view that is substantially the same as the second holding protrusion 442. The thickness of the second protrusion 452 is substantially the same as the sum of the thickness of the second holding protrusion 442 and the elastic plate 43 and the distance therebetween.

[0102] The second protrusion 452 has a fourth retaining protrusion 454 at its front end, protruding toward the first protrusion 451. The first protrusion 451 has a square pillar shape, with one side surface arranged parallel to the main surface of the second protrusion 452. The cross-sectional shape of the first protrusion 451 is substantially the same as that of the third retaining protrusion 443. The end surface of the first protrusion 451 is located closer to the second abutting portion 42 than the end of the fourth retaining protrusion 454 on the second abutting portion 42 side.

[0103] Figures 28 to 30 It is an explanatory diagram for explaining a method of attaching the rising stand attachment 90 to the first jig 91 . Figures 28 to 30 Indicates based on Figure 16 Cross section along line XXVIII-XXVIII in FIG.

[0104] like Figure 28 As shown, the stand attachment 90 is held with the inclined panel 75 facing the first jig 91 so that the inclined panel 75 and the first contact portion 41 are parallel. The second holding protrusion 442 and the elastic plate 43 are inserted between the first plate 71 and the second plate 72.

[0105] like Figure 29 As shown, the elastic plate 43 is pressed against the first plate 71 and elastically deformed toward the second holding protrusion 442. The third holding protrusion 443 is inserted into the notch portion 77.

[0106] like Figure 30 As shown, the first retaining protrusion 431 is inserted further inward than the front end of the first plate 71, causing the elastic plate 43 to elastically return to its original position. The end surface of the first retaining protrusion 431 on the first abutting portion 41 side contacts the front end surface of the first plate 71. The inclined panel 75 and the first abutting portion 41 are in contact with each other. The second plate 72 contacts the side surface of the second retaining protrusion 442, and the inner surface of the notch 77 contacts the side surface of the third retaining protrusion 443.

[0107] As described above, the erection table attachment 90 is fixed to the first jig 91. In addition, each of the above-mentioned contact portions may be provided with a gap therebetween to a degree that does not hinder the work in the subsequent steps, instead of being in contact.

[0108] like Figure 24 and Figure 25 As shown, the stand 80 is held by the elastic plate 43 and the front end of the second holding protrusion 442 with the recess 84 close to the stopper protrusion 729. The rod connecting portion 81 is in a state where the opening of the end faces the longitudinal direction of the grip 96.

[0109] If used Figure 24 As described above, the rising table attachments 90 are attached to the detachable jigs 95 and sealed one by one in the sterilization box 99 , and are sterilized by any sterilization means such as electron beam sterilization before being provided to medical institutions.

[0110] Sterilization can also be performed by a medical institution before using the stand attachment 90. In this case, the sealing of the sterilization box 99 can also be performed by a medical institution. Figures 28 to 30 The described installation of the erection stand attachment 90 to the detachable jig 95 may also be performed by a medical institution.

[0111] Figures 31 to 35 It is an explanatory diagram for explaining a method of attaching the standing stand attachment 90 to the endoscope 10 . Figures 32 to 35 and Figures 28 to 30 Similarly, based on Figure 16 Cross section along line XXVIII-XXVIII in FIG.

[0112] The user operates the standing operation lever 21 so that the lever 54 is oriented to stand up the standing platform 80. Figure 31 The rod 54 and the rod connecting portion 81 are shown in a state where their directions are aligned.

[0113] like Figure 31 and Figure 32 As shown, the user holds the detaching jig 95 with the erection base attachment 90 attached so that the inclined surface 55 is parallel to the first contact portion 41. The user pushes the detaching jig 95 toward the endoscope 10 so that the erection base 80 enters the erection base groove 56.

[0114] like Figure 33 As shown, the first retaining protrusion 431 is pressed against the step 582, and the elastic plate 43 is elastically deformed toward the second retaining protrusion 442. Both ends of the engaging claw 711 are pressed against the first inner wall 561 of the edge of the retaining groove 58, and the first plate 71 is elastically deformed toward the second retaining protrusion 442.

[0115] like Figure 34 As shown, the engaging claw 711 is inserted further inward than the inner wall claw 581, thereby elastically returning the first plate 71. The engaging claw 711 engages with the inner wall claw 581. The surface of the first plate 71 on the second plate 72 side is substantially flush with the first inner wall 561 further inward than the stepped portion 582.

[0116] Although not shown in the figure, the portion of the second plate 72 closer to the engaging protrusion 727 than the dividing groove 728 is elastically deformed toward the rising platform 80. Figure 5 and Figure 10 As described above, the engaging protrusion 727 engages with the engaging recess 57. Since the rod 54 and the rod connecting portion 81 are oriented in the same direction, the rod 54 is inserted into the rod connecting portion 81.

[0117] from Figure 34 In the state shown, the user pulls out the disassembly fixture 95, thereby Figure 35 The stand attachment 90 is shown separated from the first clamp 91. Figure 2 As described above, the erecting stand attachment 90 is in a state of being attached to the endoscope 10. The attachment operation of the erecting stand attachment 90 to the endoscope 10 is completed as described above.

[0118] By using the attachment and detachment jig 95, the user can easily attach the erection stand attachment 90 to the endoscope 10. Since the attachment and detachment jig 95 is larger than the erection stand attachment 90, operations such as removing the erection stand attachment 90 from the sterilization case 99 are also easy to perform.

[0119] During the installation operation, it is possible to prevent the erection stand attachment 90 and the endoscope 10 from being damaged by excessive force, or to prevent the medical gloves worn by the user from being torn.

[0120] Furthermore, the erection stand attachment 90 can be attached to the endoscope 10 without using the attachment and detachment jig 95. The user presses the erection stand 80 with their fingers to adjust the orientation, and then inserts the erection stand into the erection stand groove 56. The inclined panel 75 is then pressed in, causing the first plate 71 to be elastically deformed and pressed in, engaging the engaging claws 711 with the inner wall claws 581.

[0121] Figures 36 to 39 It is an explanatory diagram for explaining a method of removing the standing stand attachment 90 from the endoscope 10 . Figure 36 and Figure 8 Similarly, based on Figure 5 The cross section along line VIII-VIII in FIG. Figures 37 to 39 and Figures 28 to 30 Similarly, based on Figure 16 Cross section along line XXVIII-XXVIII in FIG.

[0122] like Figure 36 As shown, the user inserts the front end of the second protrusion 452 between the stand 80 and the connecting portion 74, so that the second abutting portion 42 abuts against the inclined panel 75. Due to the front end of the second protrusion 452, the stand 80 rotates and is kept in contact with the user. Figure 31 The state described above is the same as the state in which the rod 54 and the rod connecting portion 81 are oriented in the same direction.

[0123] like Figure 37 As shown, the first protrusion 451 is inserted into the notch 77. The engaging claw 711 is pressed by the first protrusion 451, and the first plate 71 is elastically deformed toward the second protrusion 452, disengaging the engaging claw 711 from the inner wall claw 581.

[0124] from Figure 37 In the state shown, the user pulls out the disassembly fixture 95, thereby Figure 38 As shown, the end surface of the first plate 71 contacts the fourth holding protrusion 454. Although not shown, the portion of the second plate 72 closer to the engaging protrusion 727 than the dividing groove 728 is elastically deformed toward the upright stand 80, and the engagement between the engaging protrusion 727 and the engaging recess 57 is released. Figure 39 As shown, the erection stand attachment 90 is detached from the endoscope 10 in a state of being fixed to the second clamp 92 .

[0125] Since the first plate 71 is pressed against the first protrusion 451 and deformed, the erecting stand attachment 90 does not come off the attaching and detaching jig 95. The user discards the erecting stand attachment 90 together with the attaching and detaching jig 95 after use.

[0126] By using the attachment and detachment jig 95, the user can easily detach the erection stand attachment 90 from the endoscope 10. The detached erection stand attachment 90 cannot be separated from the attachment and detachment jig 95, so it is possible to prevent the erection stand attachment 90 from being mistakenly reused.

[0127] By using the detaching jig 95, it is possible to prevent the user from accidentally damaging the endoscope 10 during the operation of detaching the erection stand attachment 90. It is also possible to prevent the medical gloves worn by the user from being torn during the detachment operation.

[0128] The first clamp 91 and the second clamp 92 are integrated into the detachment clamp 95, so 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 is attached. In other words, the user does not need to prepare a separate clamp for removing the erection stand attachment 90.

[0129] The following describes the outline of the method of using the endoscope 10 of this embodiment. The endoscope 10 is stored in a state of being cleaned. The user takes out the detachable jig 95 to which the erection stand attachment 90 is attached from the sterilization box 99. The user follows the instructions for use. Figures 31 to 35 In the described steps, the erection stand attachment 90 is mounted on the endoscope 10 .

[0130] 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.

[0131] The user operates the water supply button 25, causing water to flow from the balloon water supply and drainage hole provided in the balloon water supply and drainage groove 64, filling the balloon conduit (not shown). The user places the balloon 98, which has an O-ring at the mouth, over the ultrasonic probe 61 and secures the O-ring in the balloon securing groove 53. Alternatively, after installing the balloon 98, the erection stand attachment 90 can be installed.

[0132] The user operates the water supply button 25 to supply water from the balloon water supply and drainage hole, thereby Figure 7 The balloon 98 is inflated as shown by the two-dot chain line. 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 defusing the balloon 98 and making it closely attached to the ultrasound probe 61.

[0133] The user inserts the insertion unit 30 through the patient's mouth. While observing the captured image through the observation window 36, the user guides the distal end of the insertion unit 30 to the target site. Using the balloon 98, the user brings the ultrasonic transmitting and receiving wavefront 63 into close contact with the target site for ultrasonic imaging diagnosis. By operating the water supply button 25 to appropriately adjust the size of the balloon 98, the user can capture the target site at the desired location on the ultrasonic image.

[0134] The user protrudes a treatment instrument, such as a puncture needle, from the distal end frame 52 via the channel 34 for use. Since the treatment instrument protrudes along the ultrasound scanning plane, the user can observe the positional relationship between the distal end of the treatment instrument and the lesion on the ultrasound image. The user rotates the erection stage 80 by operating the erection operating lever 21 or the like, thereby guiding the distal end of the treatment instrument to the desired position.

[0135] After performing the necessary treatment, the user pulls out the treatment instrument from the channel 34. The user pulls out the endoscope 10 from the person being examined, and ends the examination or treatment. Figures 36 to 39 In the described steps, the erection base attachment 90 is removed from the endoscope 10 and discarded. The user removes and discards the balloon 98. In addition, either the erection base attachment 90 or the balloon 98 can be removed first.

[0136] The user cleans and processes the endoscope 10 after removing the erection stand attachment 90 and the balloon 98 for the next use. Since the erection stand 80 is removed, the user can easily perform the cleaning operation.

[0137] The balloon 98 may be provided in a package together with the erection stand attachment 90. The user takes out the erection stand attachment 90 and the balloon 98 used in one case of ultrasonic endoscopy examination.

[0138] like Figure 3 、 Figure 5 and Figure 12 As shown, the engaging recess 57 is formed in a straight line extending from the second inner wall 562 of the standing table groove 56 to the outer surface of the distal end frame 52. Similarly, the retaining groove 58 is formed in a straight line extending from the first inner wall 561 of the standing table groove 56 to the outer surface of the distal end frame 52. Therefore, after removing the standing table attachment 90, when cleaning the endoscope 10, the user can easily clean the inner surfaces of the engaging recess 57 and the retaining groove 58 by brushing.

[0139] The engagement recess 57 may also be a groove that does not reach the peripheral surface of the front end frame 52 from the second inner wall 562 to the engagement protrusion 727. Even such a groove can be cleaned by using a cleaning brush of an appropriate size.

[0140] The retaining groove 58 may also be a groove whose length, from the first inner wall 561 to the first protrusion 451, does not reach the peripheral surface of the front end frame 52. Even in such a groove, the inner surface of the retaining groove 58 can be cleaned using a cleaning brush of an appropriately sized size. If the retaining groove 58 does not reach the peripheral surface of the front end frame 52, the retaining body 70 does not include the third plate 73.

[0141] The holding body 70 may not include the dividing groove 728. For example, by thinning the second plate 72 in this portion instead of providing the dividing groove 728, the vicinity of the stopper protrusion 729 and the engaging protrusion 727 of the second plate 72 can be bent.

[0142] According to this embodiment, a forward oblique viewing endoscope 10 such as an ultrasonic endoscope can be provided, which can be easily cleaned by removing the upright stand attachment 90 after endoscopic examination. According to this embodiment, the upright stand attachment 90 is supplied in a state attached to the detachable jig 95, so it is easy to attach.

[0143] According to this embodiment, the erection stand attachment 90 can be easily removed using the attachment and detachment jig 95. Since the erection stand attachment 90 does not come off the attachment and detachment jig 95, it is possible to prevent the erection stand attachment 90 from being mistakenly reused.

[0144] [Implementation Method 2]

[0145] This embodiment relates to an erection stand attachment 90 that is detached from the endoscope 10 using a rod-shaped second clamp 92. Description of the same parts as those in the first embodiment will be omitted.

[0146] Figure 40 This is a perspective view of a holding body 70 according to Embodiment 2. The holding body 70 according to this embodiment has a clamp hole 731 that penetrates the third plate 73 .

[0147] Figure 41This is an explanatory diagram illustrating a method for removing the erection stand attachment 90 from the endoscope 10 in accordance with Embodiment 2. The second clamp 92 of this embodiment is in the shape of a stepped round bar. The thinner portion at the distal end of the second clamp 92 can be inserted into the clamp hole 731. As in Embodiment 1, the second clamp 92 can be integral with the first clamp 91 or a separate component.

[0148] The user inserts the second clamp 92 from the clamp hole 731 and presses the engaging claw 711, thereby elastically deforming the first plate 71 on the second plate 72 side, and the engaging claw 711 and the inner wall claw 581 are disengaged. In this state, the user moves the second clamp 92 to Figure 41 , thereby removing the erection stand attachment 90 from the endoscope 10. The user can pull out the second clamp 92 from the erection stand attachment 90.

[0149] According to the present embodiment, the rising table attachment 90 can be removed from the second jig 92 without being damaged, and thus can be reused after being cleaned and sterilized.

[0150] [Implementation Method 3]

[0151] This embodiment relates to an endoscope 10 that does not include the ultrasonic probe 61. Description of the same parts as those in the first embodiment will be omitted.

[0152] Figure 42 This is a perspective view of the distal end of the insertion portion 30 of Embodiment 3. The endoscope 10 of this embodiment is a conventional forward oblique-viewing endoscope that does not include an ultrasonic probe 61. The distal rigid portion is shorter than that of the ultrasonic endoscope of Embodiment 1, thereby reducing the burden on the patient's body.

[0153] 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.

[0154] The embodiments disclosed herein are illustrative in all aspects and should be understood as non-limiting. The scope of the present invention is disclosed by the claims rather than the above, and should be understood as including all modifications within the meaning and scope equivalent to the claims.

[0155] Description of Reference Numerals

[0156] 10: Endoscope; 12: Flexible portion; 13: Bending portion; 16: First connector; 17: Second connector; 18: First hose; 19: Second hose; 20: Operating portion; 21: Lifting lever; 22: Channel entrance; 23: Bending knob; 25: Water supply button; 30: Insertion portion; 34: Channel; 36: Observation window; 37: Illumination window; 41: First abutment portion; 42: Second abutment portion; 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: rising platform groove; 561: first inner wall; 562: second inner wall; 57: engaging recess; 58: holding groove; 581: inner wall claw; 5 82: Step portion; 61: Ultrasonic probe; 63: Ultrasonic wavefront for transmitting and receiving; 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: Splitting groove; 729: Stopping protrusion; 73: Third plate; 731: Clamp hole; 74: Connecting part; 75: inclined panel; 76: standing platform mounting hole; 77: cutout part; 80: standing platform; 81: rod connecting part; 82: standing platform shaft; 83: standing part; 831: first standing part; 832: second standing part; 833: circular part; 84: recessed part; 85: shaft stop part; 90: standing platform accessory; 91: first clamp; 92: second clamp; 95: disassembly clamp; 96: gripping part; 98: balloon; 99: sterilization box.

Claims

1. An endoscope comprising: an inclined surface, inclined relative to the length direction of the insertion portion; A standing platform groove has a first inner wall and a second inner wall opposite to the first inner wall and is open at the inclined surface; a rod supported by the second inner wall and rotating in the upright platform groove; and An inner wall claw is provided on one side of the first inner wall and engages with an engagement claw provided on an upright stand attachment having an upright stand that engages with the rod. The stand attachment includes: a retaining body having an inclined panel covering a portion of the inclined surface, a first plate rising from an edge of the inclined panel and arranged along the first inner wall, and a second plate abutting against the second inner wall; and The rising stand is rotatably supported between the first plate and the second plate and includes a rod connecting portion connected to the rod.

2. The endoscope according to claim 1, wherein The holding body has a connecting portion connecting the inclined panel and the second plate.

3. The endoscope according to claim 2, wherein: The second plate has a stopper protrusion protruding toward one side of the first plate, The standing platform is restricted from rotating by the stopper protrusion and the connecting portion.

4. The endoscope according to any one of claims 1 to 3, wherein: The second plate is arranged parallel to the longitudinal direction.

5. The endoscope according to any one of claims 1 to 3, wherein The second plate has an engaging protrusion that engages with an engaging recess provided on the second inner wall.

6. The endoscope according to any one of claims 1 to 3, wherein: The first plate has an engaging claw that engages with an inner wall claw provided on one side of the first inner wall.

7. The endoscope according to claim 6, wherein: The engaging claws protrude from a main surface of the first plate that does not face the second plate and both side surfaces of the first plate.

8. The endoscope according to any one of claims 1 to 3, wherein: The inclined panel has a U-shaped cutout portion opened at an edge where the first plate stands.

9. The endoscope according to any one of claims 1 to 3, wherein: The holding body includes a third plate that stands from an edge of the inclined panel and faces the first plate.

10. The endoscope according to claim 1, wherein The inner wall claw is provided on a side surface of the holding groove. The holding groove passes through the first inner wall and opens at the inclined surface.

11. The endoscope according to claim 1 or 10, wherein: The second inner wall has an engaging recessed portion that engages with an engaging protrusion provided near the rising base.

12. The endoscope according to claim 11, wherein The engaging recess is in a groove shape.

13. The endoscope according to claim 1 or 10, wherein: The endoscope includes an ultrasonic probe on the distal end side of the rising platform groove.

14. The endoscope according to claim 1 or 10, wherein: The endoscope has a forward oblique viewing optical system.

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