Balloon with mounting fixture, packaging body and balloon mounting method

Abstract

A balloon with a mounting fixture, a package, and a balloon mounting method that reduce the burden on a worker when mounting the balloon on an insertion portion of an endoscope. The balloon with the mounting fixture has: a first barrel, provided at one end of the balloon; a second barrel, provided at the other end of the balloon; and a balloon body, arranged between the first barrel and the second barrel, the mounting fixture has a cylindrical body having an inner diameter larger than the outer diameter of the insertion portion of the endoscope, the first barrel and the second barrel are arranged at positions protruding from the cylindrical body, and in a state where the balloon body is arranged on the inner side of the cylindrical body, one end of the cylindrical body has a first retaining portion that holds a portion of the first barrel folded back toward the outside of the second barrel, the first retaining portion elastically deforms the first barrel into a state in which the diameter is larger than the natural state, the other end of the cylindrical body has a second retaining portion that holds a portion of the second barrel folded back toward the outside of the first barrel, the second retaining portion elastically deforms the second barrel into a state in which the diameter is larger than the natural state.

Description

Technical Field

[0001] The present invention relates to a balloon with a mounting fixture, a packaging body and a balloon mounting method, and in particular to a technology for mounting a balloon on an insertion portion of an endoscope. Background Art

[0002] In the medical field, an endoscope having a balloon attached to the outer periphery of an insertion portion thereof is inserted into a curved intestinal tract such as the small intestine or the large intestine to perform operations such as observation, diagnosis, and treatment of the inner wall surface.

[0003] Endoscope balloons are generally made of elastic materials such as rubber. The two ends of the balloon are made of a tube, and the diameter of the tube is smaller than the outer diameter of the insertion part of the endoscope in a natural state. When installing the balloon, it is necessary to expand the diameter of the tube of the balloon while inserting the insertion part of the endoscope into the balloon.

[0004] Conventionally, there has been proposed a method for reducing the workload when attaching a balloon to an insertion portion of an endoscope (Patent Document 1).

[0005] Patent Document 1: Japanese Patent Application Publication No. 2005-193000

[0006] In Patent Document 1, a mounting jig for mounting the balloon on the insertion portion of the endoscope is mounted on the tube of the balloon. When mounting the balloon on the insertion portion of the endoscope, a worker manually pinches the mounting jig to expand the diameter of the tube.

[0007] However, the work of inserting the insertion portion of the endoscope while expanding the diameter of the tube portion of the balloon by installing the jig is cumbersome, and the installation work requires labor and time. Summary of the invention

[0008] The present invention has been made in view of such circumstances, and an object of the present invention is to provide a balloon with a mounting jig, a package, and a balloon mounting method that can reduce the burden of work for mounting the balloon on an insertion portion of an endoscope.

[0009] The first embodiment of the present invention provides a balloon with a mounting fixture, which is provided with a mounting fixture for mounting the balloon on an insertion portion of an endoscope, and a balloon with a mounting fixture for the balloon, wherein the balloon comprises: a first barrel portion, which is arranged at one end of the balloon; a second barrel portion, which is arranged at the other end of the balloon; and a balloon body, which is arranged between the first barrel portion and the second barrel portion, the mounting fixture comprises a cylindrical body having an inner diameter larger than the outer diameter of the insertion portion of the endoscope, and when the first barrel portion and the second barrel portion are arranged at positions protruding from the cylindrical body and when the balloon body is arranged on the inner side of the cylindrical body, one end of the cylindrical body comprises a first retaining portion for retaining a portion of the first barrel portion folded back toward the outside of the second barrel portion, the first retaining portion elastically deforms the first barrel portion into a state in which the diameter is larger than the natural state, and the other end of the cylindrical body comprises a second retaining portion for retaining a portion of the second barrel portion folded back toward the outside of the first barrel portion, the second retaining portion elastically deforms the second barrel portion into a state in which the diameter is larger than the natural state.

[0010] In the second embodiment of the present invention, the outer circumference of the cylindrical body includes: a first cylindrical balloon fixing component, which is enlarged in diameter by the cylindrical body and is arranged on one end side; and a second cylindrical balloon fixing component, which is enlarged in diameter by the cylindrical body and is arranged on the other end side. The second embodiment can reduce the burden on the staff when installing the first balloon fixing component and the second balloon fixing component on the outer circumference of the balloon.

[0011] In the third aspect of the present invention, the first holding portion includes a first tapered portion whose diameter increases toward the second holding portion, and the second holding portion includes a second tapered portion whose diameter increases toward the first holding portion. The third aspect enables the first balloon fixing component and the second balloon fixing component to slide easily from the mounting fixture to the insertion portion of the endoscope.

[0012] In the fourth aspect of the present invention, a slit along the axis of the mounting fixture is provided in the mounting fixture, the slit connects the outside and the inside of the cylindrical body, and the insertion portion of the endoscope can pass through the slit in a direction perpendicular to the axis. The fourth aspect makes it easy to remove the mounting fixture from the insertion portion of the endoscope.

[0013] In a fifth aspect of the present invention, the mounting jig has a C-shaped or U-shaped cross-sectional shape when viewed in a cross section cut along a plane perpendicular to the axis. The fifth aspect defines a preferred aspect of the mounting jig.

[0014] In a sixth aspect of the present invention, the mounting jig is composed of a plurality of divisible members. The sixth aspect facilitates the operation of removing the mounting jig from the insertion portion of the endoscope.

[0015] In a seventh aspect of the present invention, the mounting jig is made of at least one resin material selected from the group consisting of polyethylene, acrylonitrile-butadiene-styrene copolymer resin, polycarbonate, polyamide, polyamideimide, polysulfone, polyethylene terephthalate, and polyvinyl chloride. The seventh aspect specifies a preferred material for the mounting jig.

[0016] The eighth aspect of the present invention is a package body comprising: the balloon with the mounting jig; and a container for accommodating the balloon with the mounting jig. The eighth aspect makes it easy to transport, store, and handle the balloon with the mounting jig.

[0017] In the balloon installation method of the ninth aspect of the present invention, the balloon with the installation jig is prepared; the installation jig is inserted into the insertion portion of the endoscope from the second holding portion side to the first holding portion side; the balloon is installed in the insertion portion of the endoscope by restoring the first tube portion held in the first holding portion and folded back to the state before the folding back, and restoring the second tube portion held in the second holding portion and folded back to the state before the folding back; and the installation jig is removed from the insertion portion of the endoscope. The ninth aspect can reduce the burden on the staff when installing the balloon in the insertion portion of the endoscope.

[0018] Effects of the Invention

[0019] According to the present invention, it is possible to reduce the burden on a worker when attaching a balloon to an insertion portion of an endoscope. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a structural diagram of an endoscope system using a balloon.

[0021] Figure 2 It is a perspective view showing the front end portion of the insertion portion of the endoscope.

[0022] Figure 3 It is an explanatory diagram of the assembly process of the balloon with the mounting jig according to the first embodiment.

[0023] Figure 4 It is an explanatory diagram of the assembly process of the balloon with the mounting jig according to the first embodiment.

[0024] Figure 5 It is an explanatory diagram of the assembly process of the balloon with the mounting jig according to the first embodiment.

[0025] Figure 6 It is a perspective view of a modified example of the balloon with a mounting jig according to the first embodiment.

[0026] Figure 7 is along Figure 6 A cross-sectional view taken along line VII-VII.

[0027] Figure 8This is a schematic diagram of the packaging body.

[0028] Fig. 9 It is an explanatory diagram showing a balloon mounting method using the balloon with mounting jig according to the first embodiment.

[0029] Fig.10 It is an explanatory diagram showing a balloon mounting method using the balloon with mounting jig according to the first embodiment.

[0030] Fig.11 It is an explanatory diagram showing a balloon mounting method using the balloon with mounting jig according to the first embodiment.

[0031] Fig.12 It is an explanatory diagram showing a balloon mounting method using the balloon with mounting jig according to the first embodiment.

[0032] Fig.13 It is an explanatory diagram showing a method of mounting a balloon using a balloon with a mounting jig according to another modified example of the first embodiment.

[0033] Fig.14 It is an explanatory diagram of the assembly process of the balloon with the mounting jig according to the second embodiment.

[0034] Fig.15 It is an explanatory diagram of the assembly process of the balloon with the mounting jig according to the second embodiment.

[0035] Fig.16 is along Fig.15 Cross-sectional view along line XVI-XVI.

[0036] Fig.17 It is an explanatory diagram showing a balloon mounting method using the balloon with mounting jig according to the second embodiment.

[0037] Fig.18 It is an explanatory diagram showing a balloon mounting method using the balloon with mounting jig according to the second embodiment.

[0038] Fig.19 It is a perspective view of the mounting jig of the second embodiment.

[0039] Fig. 20 It is an explanatory diagram showing a balloon mounting method using the balloon with mounting jig according to the second embodiment.

[0040] Fig.21 It is an explanatory diagram showing a balloon mounting method using the balloon with mounting jig according to the second embodiment.

[0041] Fig. 22 is along Fig.21 A cross-sectional view of line XXII-XXII.

[0042] Fig.23 It is an explanatory diagram showing a balloon mounting method using the balloon with mounting jig according to the second embodiment.

[0043] Fig.24 It is an explanatory diagram showing a balloon mounting method using the balloon with mounting jig according to the second embodiment.

[0044] Fig.25 It is a cross-sectional view of a modified example of the balloon with a mounting jig according to the second embodiment.

[0045] Fig.26 This is a diagram illustrating the assembly process of a balloon with a mounting fixture of another type.

[0046] Fig. 27 This is a diagram illustrating the assembly process of a balloon with a mounting fixture of another type.

[0047] Fig.28 is along Fig. 27 A cross-sectional view of line XXVII-XXVII.

[0048] Fig.29 It is an explanatory diagram showing a method of installing a balloon using another type of balloon with an installation jig.

[0049] Fig.30 is along Fig.29 Cross-sectional view of line XXX-XXX.

[0050] Fig.31 This is a diagram illustrating the assembly process of a balloon with a mounting fixture of another type.

[0051] Fig.32 This is a diagram illustrating the assembly process of a balloon with a mounting fixture of another type.

[0052] Fig.33 This is a diagram illustrating the assembly process of a balloon with a mounting fixture of another type.

[0053] Fig.34 This is a diagram illustrating the assembly process of a balloon with a mounting fixture of another type.

[0054] Explanation of symbols

[0055] 1- endoscope system, 10- endoscope, 12- insertion part, 14- operation part, 16- universal cord, 18- connector for light source, 20- light source device, 22- cable, 24- connector for processor, 26- processor device, 28- air supply and water supply button, 30- suction button, 32- shutter button, 34- function switching button, 36- angle button, 38- balloon air supply port, 40- soft part, 42- bending part, 44- front end part, 45- front end surface, 46- forceps mouth, 48- air supply and water supply connector, 49- suction connector, 50-monitor, 52-observation window, 54-illumination window, 56-air and water supply nozzle, 58-forceps outlet, 60-balloon, 60A-first cylinder, 60B-second cylinder, 60C-balloon body, 61-first balloon fixing part, 62-second balloon fixing part, 64-vent, 70-balloon control device, 72-device body, 73-backflow prevention unit, 74-manual switch, 75-hose, 76-pressure display part, 77-cord, 78-balloon dedicated monitor, 80-installation fixture, 82-cylindrical body, 82A -1st opening, 82B-2nd opening, 83-1st component, 84-1st retaining portion, 84A-1st cone, 85-2nd component, 86-2nd retaining portion, 86A-2nd cone, 100-balloon with mounting fixture, 120-packaging body, 122-container, 180-mounting fixture, 182-cylindrical body, 182A-1st opening, 182B-2nd opening, 182C-slit, 182D-through hole, 184-1st retaining portion, 184A-1st cone, 186-2nd retaining portion, 186A-2nd cone , 200-balloon with mounting clamp, 280-mounting clamp, 282-cylindrical body, 282A-first opening, 282B-second opening, 284-first holding portion, 286-second holding portion, 288-diameter expansion portion, 290-first cone portion, 292-second cone portion, 294-Luer connector, 296-suction hole, 298-groove, 300-balloon with mounting clamp, 320-syringe, Ax-axis line, S-airtight space, SW1-power switch, SW2-stop switch, W1-width, W2-width. DETAILED DESCRIPTION

[0056] Hereinafter, preferred embodiments of the balloon with a mounting fixture will be described with reference to the accompanying drawings. In addition, in this specification, a numerical range represented by "to" means a range including the numerical values ​​described before and after "to" as the lower limit and the upper limit.

[0057] Figure 1 1 is a diagram illustrating the installation of a balloon using a balloon with an installation fixture, and is a structural diagram of an endoscope system using a balloon. Figure 1 As shown, the endoscope system 1 includes an endoscope 10 , a balloon 60 , and a balloon control device 70 .

[0058] The endoscope 10 includes an operation portion 14 and an insertion portion 12 connected to the operation portion 14 and inserted into the body. A universal cord 16 is connected to the operation portion 14, and a light source connector 18 is provided at the front end of the universal cord 16. The light source connector 18 is detachably connected to a light source device 20. The light source connector 18 transmits illumination light to an illumination optical system (not shown) provided at the front end of the insertion portion 12. Furthermore, a processor connector 24 is connected to the light source connector 18 via a cable 22. The processor connector 24 is detachably connected to a processor device 26.

[0059] The operation portion 14 includes an air and water supply button 28 , a suction button 30 , a shutter button 32 , and a function switching button 34 , and also includes a pair of angle buttons 36 , 36 .

[0060] The insertion portion 12 is composed of a flexible portion 40, a curved portion 42, and a distal end portion 44 in order from the operation portion 14. The flexible portion 40 is formed by wrapping a mesh around the outer periphery of a spirally wound metal plate to cover the outer periphery, and the flexible portion 40 has sufficient flexibility.

[0061] The bending portion 42 is remotely bent by operating the angle knobs 36, 36 of the operating portion 14. For example, the bending portion 42 is rotatably connected to a plurality of cylindrical node rings through a pin. A plurality of operating wires are inserted through the inside of the node rings and guided to the pins, and by pushing and pulling the operating wires, the node rings rotate with each other and the bending portion 42 is bent. By bending the bending portion 42, the front end portion 44 can be directed to a desired direction.

[0062] like Figure 2 As shown, an observation window 52, ​​an illumination window 54, an air and water supply nozzle 56, and a forceps outlet 58 are provided on the front end surface of the front end portion 44 of the insertion portion 12 of the endoscope 10. The observation window 52 is arranged at the center of one side of the front end surface 45. Two illumination windows 54 are arranged at positions symmetrical to the observation window 52.

[0063] An objective optical system for reading an image of an observed part in the body and an imaging element for photographing the image of the observed part are provided behind the observation window 52. The imaging element is composed of, for example, a CCD (Charge Coupled Device) image sensor or a CMOS (Complementary Metal-Oxide Semiconductor) image sensor. The imaging element is connected to the processor device 26 via a signal cable (not shown). The signal cable is inserted through the insertion portion 12, the operating portion 14 and the universal cord 16 and is extended to the processor connector 24. The image of the observed part read from the observation window 52 is imaged on the light-receiving surface of the imaging element and converted into an imaging signal. The processor device 26 performs various image processing on the imaging signal received from the imaging element via the signal cable and converts it into a video signal. The video signal is displayed as an observation image on the monitor 50 (reference) connected to the cable. Figure 1 ).

[0064] The illumination window 54 has an exit end of a light guide (not shown) disposed behind it. The light guide guides illumination light from the illumination light source of the light source device 20. The light guide is inserted through the insertion portion 12, the operation portion 14, and the universal cord 16 and is extended to the light source connector 18. The incident end of the light guide is disposed in the light source connector 18. The illumination light guided by the light guide is irradiated toward the observation site in the body through the illumination window 54.

[0065] The air supply and water supply nozzle 56 provided at the front end portion 44 is connected to a valve (not shown) operated by the air supply and water supply button 28. The valve is connected to the air supply and water supply connector 48 provided at the light source connector 18. An air supply and water supply mechanism (not shown) is connected to the air supply and water supply connector 48, which supplies air and water. Therefore, by operating the air supply and water supply button 28, air or water is sprayed from the air supply and water supply nozzle 56 toward the observation window 52.

[0066] The forceps outlet 58 provided at the front end portion 44 is connected to the forceps opening 46. By inserting a treatment tool such as forceps from the forceps opening 46, the treatment tool can be led out from the forceps outlet 58. The forceps outlet 58 is connected to a valve (not shown) operated by the suction button 30, and the valve is connected to the suction connector 49 of the light source connector 18. By connecting a suction mechanism (not shown) to the suction connector 49 and operating it with the suction button 30, the lesion and the like are suctioned from the forceps outlet 58.

[0067] A balloon 60 is detachably mounted on the outer periphery of the insertion portion 12 of the endoscope 10. The balloon 60 is made of an elastic material such as silicone rubber. The balloon 60 includes a first tube 60A that is reduced at one end, a second tube 60B that is reduced at the other end, and a balloon body 60C disposed between the first tube 60A and the second tube 60B.

[0068] The balloon 60 is arranged at a predetermined installation position (for example, from the front end portion 44 to the curved portion 42) by inserting the insertion portion 12 through the endoscope 10. The first barrel 60A and the second barrel 60B are configured to have an inner diameter smaller than the outer diameter of the insertion portion 12 of the endoscope 10 in a natural state. When the balloon 60 is installed in the insertion portion 12, the elastic force of the first barrel 60A and the elastic force of the second barrel 60B act toward the radial inner side of the insertion portion 12. The balloon 60 is maintained at a predetermined position of the insertion portion 12 by the elastic force.

[0069] A fixing rubber as a first balloon fixing member 61 in a cylindrical shape is embedded in the outer periphery of the first cylinder 60A, and a fixing rubber as a second balloon fixing member 62 in a cylindrical shape is embedded in the outer periphery of the second cylinder 60B. The balloon 60 is fixed to the insertion portion 12 by the first balloon fixing member 61 and the second balloon fixing member 62.

[0070] A vent hole 64 is formed on the outer periphery of the insertion portion 12, which is the attachment position of the balloon 60. The vent hole 64 is Figure 1 The balloon air delivery port 38 provided on the operation part 14 is connected. The balloon air delivery port 38 is connected via a hose 75 (refer to Figure 1 ) is connected to the balloon control device 70. The balloon 60 is expanded and contracted by the air supply and air suction of the balloon control device 70. By supplying air to the balloon 60, the balloon body 60C is expanded into a substantially spherical shape, and by suctioning air, the balloon body 60C is closely attached to the outer periphery of the insertion portion 12.

[0071] like Figure 1 As shown, the balloon control device 70 includes a device body 72 and a manual switch 74 for remote control. A power switch SW1, a stop switch SW2, and a pressure display unit 76 are provided on the front surface of the device body 72. The pressure display unit 76 is a panel that displays the pressure value of the balloon 60. When an abnormality such as balloon damage occurs, an error code is displayed on the pressure display unit 76.

[0072] A hose 75 for supplying and sucking air to the balloon 60 is connected to the front surface of the device body 72. A backflow prevention unit 73 for preventing backflow of body fluid when the balloon 60 is damaged is provided at the connection portion between the hose 75 and the device body 72. The backflow prevention unit 73 is formed by assembling a gas-liquid separation filter inside a hollow disk-shaped housing (not shown) that is detachably mounted on the device body 72. The filter prevents liquid from flowing into the device body 72.

[0073] On the other hand, various switches are provided in the manual switch 74. For example, a stop switch similar to the stop switch SW2 on the device body 72 side, an ON / OFF switch for instructing the pressurization and depressurization of the balloon 60, a pose switch for maintaining the pressure of the balloon 60, etc. are provided. The manual switch 74 is electrically connected to the device body 72 via a cord 77. Figure 1 Although not shown, the manual switch 74 is provided with a display unit indicating the inflation state or deflation state of the balloon 60 .

[0074] The balloon control device 70 supplies air to the balloon 60 to expand it, and controls the air pressure to a constant value to keep the balloon 60 in an expanded state. In addition, air is sucked from the balloon 60 to deflate it, and controls the air pressure to a constant value to keep the balloon 60 in a deflated state.

[0075] The balloon control device 70 is connected to a balloon-dedicated monitor 78, and when the balloon 60 is inflated or deflated, the pressure value or the inflated or deflated state of the balloon 60 is displayed on the balloon-dedicated monitor 78. The pressure value or the inflated or deflated state of the balloon 60 may also be displayed on the monitor 50 by being superimposed on the observation image of the endoscope 10.

[0076] As an example of an operation method of the endoscope system 1, the insertion portion 12 is gradually inserted in a push-in manner, and the balloon 60 is inflated as needed to fix the insertion portion 12 in the body (e.g., the large intestine). Moreover, after the insertion portion 12 is pulled out to simplify the tubular shape of the body (e.g., the large intestine), the balloon 60 is deflated to further insert the insertion portion 12 into the deep part of the intestine. For example, the insertion portion 12 is inserted from the anus of the subject, and when the front end of the insertion portion 12 passes through the sigmoid colon, the balloon 60 is inflated to fix the insertion portion 12 to the intestine, and the insertion portion 12 is pulled out to make the sigmoid colon roughly straight. Next, the balloon 60 is deflated, and the front end of the insertion portion 12 is inserted into the deep part of the intestine. The insertion portion 12 can be inserted into the deep part of the intestine. In addition, a double-balloon endoscope system using the above-mentioned endoscope 10 and an insertion auxiliary device with a balloon (not shown) can be preferably used.

[0077] Next, the balloon with a mounting fixture involved in the embodiment is described. The balloon with a mounting fixture is used to easily mount the balloon 60 on the insertion portion 12 of the endoscope 10. The inner diameters of the first barrel 60A and the second barrel 60B of the balloon 60 are smaller than the outer diameter of the insertion portion 12 in the natural state, and it is difficult to insert the insertion portion 12 through in the natural state. By using the balloon with a mounting fixture involved in the present invention, the burden on the staff when inserting the balloon 60 into the insertion portion 12 can be reduced. The natural state refers to a state where no external force is applied. The first barrel 60A and the second barrel 60B are in an unexpanded and uncontracted state.

[0078] <First Embodiment>

[0079] refer to Figures 3 to 12 The balloon 100 with a mounting jig according to the first embodiment will be described. Figures 3 to 5 The figure shows the assembly process of the balloon with the mounting fixture. Figure 3 As shown, the mounting fixture 80 includes a cylindrical body 82. A first opening 82A and a second opening 82B are formed on the cylindrical body 82. The first opening 82A and the second opening 82B are connected inside the cylindrical body 82. The first opening 82A and the second opening 82B have an inner diameter larger than the outer diameter of the insertion portion 12 (not shown) of the endoscope 10. A first holding portion 84 is formed at one end of the cylindrical body 82, and a second holding portion 86 is formed at the other end of the cylindrical body 82.

[0080] In the embodiment, the first holding portion 84 includes a first tapered portion 84A whose diameter increases toward the outer diameter side from the first opening 82A toward the second holding portion 86. The second holding portion 86 includes a second tapered portion 86A whose diameter increases toward the outer diameter side from the second opening 82B toward the first holding portion 84.

[0081] The shapes of the first holding portion 84 and the second holding portion 86 are not limited, and the first tapered portion 84A and the second tapered portion 86A may not be provided. For example, the first holding portion 84 and the second holding portion 86 may be formed in a so-called cylindrical shape with a constant diameter, rather than a shape with an enlarged diameter.

[0082] The mounting jig 80 is preferably an integrally molded body formed by integrally molding the cylindrical body 82, the first holding portion 84, and the second holding portion 86. The mounting jig 80 can be easily manufactured and easily handled.

[0083] The mounting fixture 80 is preferably made of at least one resin material selected from the group consisting of polyethylene, acrylonitrile-butadiene-styrene copolymer resin, polycarbonate, polyamide, polyamide-imide, polysulfone, polyethylene terephthalate, and polyvinyl chloride. The resin material is not limited to these resin materials, and is preferably a resin material that can be sterilized by radiation, has a relatively low friction coefficient, and has a relatively high bending strength.

[0084] like Figure 3 As shown, in order to insert the balloon 60 into the inner side of the mounting jig 80 , the first tube portion 60A of the balloon 60 is moved toward the second opening 82B of the tubular body 82 .

[0085] like Figure 4 As shown, the balloon 60 is inserted into the inner side of the mounting fixture 80. The balloon 60 and the mounting fixture 80 are positioned. The balloon body 60C is arranged on the inner side of the cylindrical body 82. The first cylindrical portion 60A and the second cylindrical portion 60B are arranged at positions protruding from the cylindrical body 82. In an embodiment, the first cylindrical portion 60A protrudes from the first opening 82A of the cylindrical body 82, and the second cylindrical portion 60B protrudes from the second opening 82B of the cylindrical body 82. It is sufficient that at least a portion of the first cylindrical portion 60A and the second cylindrical portion 60B protrudes from the cylindrical body 82.

[0086] The outer diameter of the first holding portion 84 of the tubular body 82 is larger than the outer diameter of the first tubular portion 60A of the balloon 60 in its natural state. The outer diameter of the second holding portion 86 of the tubular body 82 is larger than the outer diameter of the second tubular portion 60B of the balloon 60 in its natural state.

[0087] like Figure 5 As shown, the first holding portion 84 holds the portion of the first tube 60A folded outward toward the second tube 60B. The first holding portion 84 elastically deforms the first tube 60A to a state in which the diameter is enlarged compared to the natural state. The portion of the first tube 60A folded outward toward the second tube 60B refers to the portion in which the first tube 60A is turned over so that the inner surface is exposed to the outside.

[0088] Similarly, the second holding portion 86 holds the portion of the second tube 60B that is folded back outward toward the first tube 60A. The second holding portion 86 elastically deforms the second tube 60B to a state in which the diameter is enlarged compared to the natural state. The portion of the second tube 60B that is folded back outward toward the first tube 60A refers to the portion in which the second tube 60B is turned over so that the inner surface is exposed to the outside. The balloon 100 with the mounting fixture of the first embodiment is completed.

[0089] Figure 6 and Figure 7 yes Figure 5 A variation of the balloon 100 with a mounting fixture is shown, Figure 7 is along Figure 6The balloon 100 with the mounting fixture is provided with a first balloon fixing component 61 and a second balloon fixing component 62 on the outer periphery of the cylindrical body 82, which are cylindrical in shape and whose diameters are enlarged by the cylindrical body 82. Since the balloon 100 with the mounting fixture is provided with the first balloon fixing component 61 and the second balloon fixing component 62, when the balloon 60 is mounted on the insertion portion 12 of the endoscope 10, the first balloon fixing component 61 and the second balloon fixing component 62 can be installed. In addition, for ease of understanding, the first balloon fixing component 61 and the second balloon fixing component 62 are sometimes colored and represented. However, the first balloon fixing component 61 and the second balloon fixing component 62 can be set to the same color as the balloon 60 or a different color.

[0090] The first balloon fixing member 61 is arranged at a position not overlapping with the folded-back first tube portion 60A. The second balloon fixing member 62 is arranged at a position not overlapping with the folded-back second tube portion 60B. In the embodiment, the first balloon fixing member 61 and the second balloon fixing member 62 are arranged between the first holding portion 84 and the second holding portion 86.

[0091] In the balloon with mounting clamp 100 of the modified example, the first holding portion 84 resists the elastic force of the first tube portion 60A to expand the diameter of the first tube portion 60A. The cylindrical body 82 resists the elastic force of the first balloon fixing part 61 to expand the diameter of the first balloon fixing part 61. The second holding portion 86 resists the elastic force of the second tube portion 60B to expand the diameter of the second tube portion 60B. The cylindrical body 82 resists the elastic force of the second balloon fixing part 62 to expand the diameter of the second balloon fixing part 62.

[0092] Figure 8 This is a schematic diagram of the packaging body. Figure 8 As shown, the package 120 includes a balloon 100 with a mounting fixture and a container 122 for accommodating the balloon 100 with the mounting fixture. The container 122 is, for example, a sterilization bag. The package 120 is provided at a medical site. The staff opens the container 122 and takes out the balloon 100 with the mounting fixture. Since the mounting fixture 80 is mounted on the balloon 60, the burden on the staff when mounting the mounting fixture 80 on the balloon 60 can be reduced.

[0093] The form of the container 122 is not particularly limited as long as it can accommodate the balloon 100 with the mounting fixture. For example, the container may be in the form of a blister package.

[0094] Next, refer to Figures 9 to 12 Yes Figure 5 The balloon installation method of the balloon 100 with the installation clamp shown is described.

[0095] like Fig. 9As shown, the balloon 100 with the mounting jig is taken out from the container 122 (not shown). The insertion portion 12 of the endoscope 10 is relatively moved in the direction from the second opening 82B of the mounting jig 80 toward the first opening 82A.

[0096] like Fig.10 As shown, the insertion portion 12 of the endoscope 10 is inserted into the balloon 100 with the mounting clamp. The insertion portion 12 is moved from the second opening 82B to the first opening 82A, and the insertion portion 12 is inserted into the balloon 60 disposed inside the cylindrical body 82. The positional relationship between the insertion portion 12 and the balloon 100 with the mounting clamp is adjusted.

[0097] Since the inner diameters of the first opening 82A and the second opening 82B of the tubular body 82 are larger than the outer diameter of the insertion portion 12 of the endoscope 10, the staff can easily insert the insertion portion 12 into the tubular body 82. Since the diameters of the first tubular portion 60A and the second tubular portion 60B of the balloon 60 have been enlarged by the tubular body 82, the staff does not need to install the first tubular portion 60A and the second tubular portion 60B on the insertion portion 12 of the endoscope 10 while enlarging their diameters.

[0098] like Fig.11 As shown, the first tube portion 60A held in the first holding portion 84 and folded back is restored to the state before the folding back. Similarly, the second tube portion 60B held in the second holding portion 86 and folded back is restored to the state before the folding back. Through these actions, the balloon 60 is installed in the insertion portion 12 of the endoscope 10.

[0099] The first tube portion 60A and the second tube portion 60B are narrowed by elastic force toward the radial inner side of the insertion portion 12. The first tube portion 60A and the second tube portion 60B are in close contact with the outer periphery of the insertion portion 12. The balloon 60 is held at a predetermined position of the insertion portion 12 by this elastic force.

[0100] like Fig.12 As shown, the mounting jig 80 is removed from the insertion portion 12 of the endoscope 10. The mounting jig 80 is moved in a direction away from the insertion portion 12 in parallel with the axis Ax of the mounting jig. The mounting jig 80 and the insertion portion 12 are moved in a direction in which they are relatively separated.

[0101] Then, when the first balloon fixing member 61 and the second balloon fixing member 62 are used, for example, the placement described in Japanese Patent Application Laid-Open No. 2013-126526 can be used to attach the first balloon fixing member 61 to the outer periphery of the first tube 60A and the second balloon fixing member 62 to the outer periphery of the second tube 60B. The balloon 60 is fixed to the insertion portion 12 by the first balloon fixing member 61 and the second balloon fixing member 62.

[0102] When the first balloon fixing member 61 and the second balloon fixing member 62 are not used, the balloon 60 is fixed to the insertion portion 12 by fastening the outer circumferences of the first tube portion 60A and the second tube portion 60B with a thin wire.

[0103] Fig.13 FIG. 2 is an explanatory diagram showing a method for installing a balloon 100 with an installation jig using another modified example of the first embodiment. Fig.13 As shown, in the mounting jig 80, the cylindrical body 82 is composed of a first member 83 and a second member 85 as a plurality of divisible members. The first member 83 and the second member 85 are formed by dividing the cylindrical body 82 along a plane parallel to the axis Ax.

[0104] The first component 83 and the second component 85 are temporarily connected by an adhesive or a connecting member (not shown) to form a cylindrical body 82. After the balloon 60 is mounted on the insertion portion 12 of the endoscope 10 using the mounting jig 80, as shown in FIG. Fig.13 As shown in FIG. 1 , the cylindrical body 82 is divided into the first component 83 and the second component 85 by an external force, and then the first component 83 and the second component 85 are moved in the directions of the arrows. The mounting jig 80 is removed from the insertion portion 12. Fig.13 In the embodiment, the cylindrical body 82 is composed of two divided parts, but the cylindrical body 82 can be composed of three or more divided parts.

[0105] <Second Embodiment>

[0106] refer to Figures 14 to 25 A balloon 200 with a mounting jig according to a second embodiment will be described. The same components as those in the first embodiment are denoted by the same reference numerals and their description may be omitted.

[0107] like Fig.14 As shown, the mounting fixture 180 includes a cylindrical body 182. A first opening 182A and a second opening 182B are formed in the cylindrical body 182. The first opening 182A and the second opening 182B are connected inside the cylindrical body 182. The first opening 182A and the second opening 182B have an inner diameter larger than the outer diameter of the insertion portion 12 (not shown) of the endoscope 10. A first holding portion 184 is formed at one end of the cylindrical body 182, and a second holding portion 186 is formed at the other end of the cylindrical body 182.

[0108] Unlike the mounting jig 80 of the first embodiment, the mounting jig 180 of the second embodiment is provided with a slit 182C along the axis Ax of the mounting jig 180 on the cylindrical body 182. The slit 182C connects the outside and the inside of the cylindrical body 182. The slit 182C is formed along the axis Ax in the entire area of ​​the cylindrical body 182. In the area where the slit 182C is formed, the cylindrical body 182 is absent and does not exist.

[0109] like Fig.14 As shown, the balloon 60 is inserted into the inner side of the mounting fixture 180. The balloon 60 and the mounting fixture 180 are positioned. The balloon body 60C is arranged on the inner side of the cylindrical body 182. The first cylindrical portion 60A and the second cylindrical portion 60B are arranged at positions protruding from the cylindrical body 182. In the embodiment, the first cylindrical portion 60A protrudes from the first retaining portion 184 of the cylindrical body 182, and the second cylindrical portion 60B protrudes from the second retaining portion 186 of the cylindrical body 182.

[0110] The outer diameter of the first holding portion 184 of the tubular body 182 is larger than the outer diameter of the first tubular portion 60A of the balloon 60 in its natural state. The outer diameter of the second holding portion 186 of the tubular body 182 is larger than the outer diameter of the second tubular portion 60B of the balloon 60 in its natural state.

[0111] The first balloon fixing member 61 and the second balloon fixing member 62 are arranged on the outer circumference of the cylindrical body 182. The first balloon fixing member 61 and the second balloon fixing member 62 are arranged between the first holding part 184 and the second holding part 186 in the embodiment.

[0112] like Fig.15 and Fig.16 As shown, the first holding portion 184 holds the portion of the first cylindrical portion 60A that is folded outward toward the second cylindrical portion 60B. The first holding portion 184 elastically deforms the first cylindrical portion 60A to a state in which the diameter is enlarged compared to the natural state.

[0113] Similarly, the second holding portion 186 holds the portion of the second tube 60B that is folded outward toward the first tube 60A. The second holding portion 186 elastically deforms the second tube 60B to a state in which the diameter is larger than the natural state. The balloon 200 with the mounting jig of the second embodiment is completed.

[0114] like Fig.16 As shown, in the embodiment, the first holding portion 184 includes a first tapered portion 184A whose diameter increases from the first opening 182A toward the second holding portion 186. Furthermore, the second holding portion 186 includes a second tapered portion 186A whose diameter increases from the second opening 182B toward the first holding portion 184.

[0115] Similar to the balloon with a mounting jig 100 according to the first embodiment, the balloon with a mounting jig 200 according to the second embodiment is housed in a container 122 (for example, a sterilization bag) to form a package.

[0116] Next, refer to Figures 17 to 24 A balloon mounting method using the balloon 200 with a mounting jig according to the second embodiment will be described.

[0117] like Fig.17 As shown, the balloon 200 with the mounting jig is taken out from the container 122 (not shown) of the package body and prepared. The insertion portion 12 of the endoscope 10 is relatively moved in the direction from the second opening 182B of the mounting jig 180 toward the first opening 182A.

[0118] like Fig.18 As shown, the insertion portion 12 of the endoscope 10 is inserted into the balloon 200 with the mounting clamp. The insertion portion 12 is moved from the second opening 182B to the first opening 182A, and the insertion portion 12 is inserted into the balloon 60 disposed inside the cylindrical body 182. The positional relationship between the insertion portion 12 and the balloon 200 with the mounting clamp is adjusted.

[0119] Since the inner diameters of the first opening 182A and the second opening 182B of the tubular body 182 are larger than the outer diameter of the insertion portion 12 of the endoscope 10, the staff can easily insert the insertion portion 12 into the tubular body 182. Since the diameters of the first tubular portion 60A and the second tubular portion 60B of the balloon 60 have been enlarged by the tubular body 182, the staff does not need to install the first tubular portion 60A and the second tubular portion 60B on the insertion portion 12 of the endoscope 10 while enlarging their diameters.

[0120] In addition, when the insertion portion 12 is inserted into the balloon 60 , the insertion portion 12 can easily pass through the inside of the balloon 60 by gathering the balloon body 60C in the slit 182C.

[0121] And, if Fig.19 As shown, a rectangular through hole 182D may be provided on the cylindrical body 182 of the mounting fixture 180. By gathering the balloon body 60C in the through hole 182D, the insertion portion 12 can easily pass through the inner side of the balloon 60. The through hole 182D connects the outer side and the inner side of the cylindrical body 182. On the other hand, the through hole 182D is different from the slit 182C and is not formed in the entire area of ​​the cylindrical body 182 along the axis Ax.

[0122] like Fig. 20 As shown, the first tube portion 60A held in the first holding portion 184 and folded back is restored to the state before the folding back. Similarly, the second tube portion 60B held in the second holding portion 186 and folded back is restored to the state before the folding back. Through these actions, the balloon 60 is installed in the insertion portion 12 of the endoscope 10.

[0123] The first tube portion 60A and the second tube portion 60B are narrowed by elastic force toward the radial inner side of the insertion portion 12. The first tube portion 60A and the second tube portion 60B are in close contact with the outer periphery of the insertion portion 12. The balloon 60 is held at a predetermined position of the insertion portion 12 by this elastic force.

[0124] like Fig.21 As shown, the first balloon fixing component 61, which has been enlarged in diameter by the cylindrical body 182, slides toward the first barrel 60A. The first balloon fixing component 61 is narrowed by the elastic force toward the radial inner side of the insertion portion 12. By this elastic force, the first balloon fixing component 61 is closely fitted on the outer periphery of the first barrel 60A, and the first balloon fixing component 61 fixes the first barrel 60A to the insertion portion 12.

[0125] The second balloon fixing component 62, whose diameter is enlarged by the cylindrical body 182, slides toward the second cylindrical portion 60B. The second balloon fixing component 62 is narrowed by the elastic force toward the radial inner side of the insertion portion 12. The second balloon fixing component 62 is closely fitted to the outer periphery of the second cylindrical portion 60B by the elastic force, and the second balloon fixing component 62 fixes the second cylindrical portion 60B to the insertion portion 12.

[0126] Fig. 22 So in Fig.21 The cross section is cut by a plane perpendicular to the axis Ax (not shown) of the mounting fixture 180. The cylindrical body 182 of the mounting fixture 180 has a C-shaped cross-sectional shape when viewed in cross section. The C-shaped shape is a ring shape with a portion cut off due to the slit 182C. The ring shape includes a perfect circle and an ellipse.

[0127] When the length obtained by adding the diameter of the insertion portion 12 and twice the thickness of the balloon 60 is assumed to be 100%, the width W1 of the slit 182C is preferably 60% or more. The mounting jig 180 can be easily removed from the insertion portion 12 .

[0128] Then, if Fig.23 and Fig.24 As shown, the insertion portion 12 of the endoscope 10 and the mounting fixture 180 are moved in a direction relatively away from each other as shown by the arrow. The insertion portion 12 of the endoscope 10 passes through the slit 182C of the cylindrical body 182 in a direction orthogonal to the axis Ax of the cylindrical body 182, and the mounting fixture 180 is removed from the insertion portion 12. When the insertion portion 12 of the endoscope 10 passes through the slit 182C, the insertion portion 12 of the endoscope 10 elastically deforms the cylindrical body 182 to press and expand the width W1 of the slit 182C. The insertion portion 12 can pass through the slit 182C.

[0129] Since the mounting jig 180 is provided with the slit 182C, the mounting jig 180 can be easily removed from the insertion portion 12. The balloon 60 is mounted on the insertion portion 12 of the endoscope 10.

[0130] In addition, the mounting jig 180 can also be constituted by a plurality of divisible members similarly to the mounting jig 80 of the first embodiment.

[0131] Fig.25FIG. 2 is a cross-sectional view of a balloon 200 with a mounting fixture according to a modified example of the second embodiment. Fig.25 As shown in FIG. 1 , a slit 182C is formed on the cylindrical body 182 constituting the mounting fixture 180. When observed in a cross section cut by a plane orthogonal to the axis Ax (not shown) of the mounting fixture 180, the cylindrical body 182 of the mounting fixture 180 has a U-shaped cross-sectional shape. The U-shape is a shape consisting of an arc shape and a total of two substantially parallel straight lines connected to both ends of the arc shape, and is a shape in which the two straight lines are separated by the slit 182C. The arc shape includes a perfect circular arc and an elliptical arc.

[0132] When the length obtained by adding the diameter of the insertion portion 12 and twice the thickness of the balloon 60 is assumed to be 100%, the width W2 of the slit 182C is preferably equal to or greater than 100%. The mounting jig 180 can be easily removed from the insertion portion 12 .

[0133] <Other methods>

[0134] Next, refer to Figures 26 to 34 A balloon with a mounting jig which is different from the first and second embodiments will be described.

[0135] like Fig.26 As shown, the mounting fixture 280 includes a cylindrical body 282. A first opening 282A and a second opening 282B are formed in the cylindrical body 282. The first opening 282A and the second opening 282B are connected inside the cylindrical body 282. The first opening 282A and the second opening 282B have an inner diameter larger than the outer diameter of the insertion portion 12 (not shown) of the endoscope 10. A first holding portion 284 is formed at one end of the cylindrical body 282, and a second holding portion 286 is formed at the other end of the cylindrical body 282.

[0136] The tubular body 282 includes a cylindrical diameter-enlarged portion 288 having an outer diameter larger than the outer diameters of the first holding portion 284 and the second holding portion 286 between the first holding portion 284 and the second holding portion 286. The tubular body 282 also includes a first frustum portion 290 between the first holding portion 284 and the diameter-enlarged portion 288, and a second frustum portion 292 between the second holding portion 286 and the diameter-enlarged portion 288. A Luer connector 294 communicating with the inner side of the diameter-enlarged portion 288 is disposed in the diameter-enlarged portion 288.

[0137] like Fig.26As shown, the balloon 60 is inserted into the inner side of the mounting fixture 280. The balloon 60 and the mounting fixture 280 are positioned. The balloon body 60C (not shown) is arranged on the inner side of the cylindrical body 282. The first cylindrical portion 60A and the second cylindrical portion 60B are arranged at positions protruding from the cylindrical body 282. In the embodiment, the first cylindrical portion 60A protrudes from the first opening 282A of the cylindrical body 282, and the second cylindrical portion 60B protrudes from the second opening 282B of the cylindrical body 282.

[0138] The outer diameter of the first holding portion 284 of the tubular body 282 is larger than the outer diameter of the first tubular portion 60A of the balloon 60 in its natural state. The outer diameter of the second holding portion 286 of the tubular body 282 is larger than the outer diameter of the second tubular portion 60B of the balloon 60 in its natural state.

[0139] exist Fig.26 In the embodiment, the first balloon fixing member 61 whose diameter is enlarged by the first holding portion 284 is arranged on the outer periphery of the first holding portion 284. The second balloon fixing member 62 whose diameter is enlarged by the second holding portion 286 is arranged on the outer periphery of the second holding portion 286.

[0140] like Fig. 27 and Fig.28 As shown, the first holding portion 284 holds the portion of the first tube portion 60A that is folded outward toward the second tube portion 60B. The first holding portion 284 elastically deforms the first tube portion 60A to a state in which the diameter is enlarged compared to the natural state.

[0141] Similarly, the second holding portion 286 holds the portion of the second tube 60B that is folded outward toward the first tube 60A. The second holding portion 286 elastically deforms the second tube 60B to a state in which the diameter is larger than the natural state. Another balloon 300 with a mounting jig is completed.

[0142] like Fig.28 As shown, a suction hole 296 is provided in the enlarged diameter portion 288. The Luer connector 294 is disposed in the suction hole 296. A plurality of grooves 298 are formed on the inner wall of the enlarged diameter portion 288. The grooves 298 are formed on the entire circumference of the inner wall of the enlarged diameter portion 288. The suction hole 296 is connected to the plurality of grooves 298.

[0143] An airtight space S is formed between the inner sides of the first frustum portion 290 , the enlarged diameter portion 288 , and the second frustum portion 292 and the outer side of the balloon body 60C of the balloon 60 . The airtight space S communicates with the suction hole 296 .

[0144] The balloon 300 with the mounting jig is housed in a container 122 (eg, a sterilization bag) not shown, thereby forming a package.

[0145] Next, refer to Figures 29 to 34A balloon mounting method using the balloon 300 with a mounting jig of another type will be described.

[0146] like Fig.29 As shown, for example, the balloon 300 with the mounting fixture is taken out from the container 122 (not shown) of the package body for preparation. The syringe 320 is mounted on the Luer connector 294. The cylindrical body 282 of the mounting fixture 280 is sucked by the syringe 320.

[0147] like Fig.30 As shown, the airtight space S (not shown) becomes negative pressure by suction of the syringe 320, and the balloon body 60C expands from a natural state until it is closely attached to the inner wall of the cylindrical body 282. Since a plurality of grooves 298 are formed on the inner wall of the enlarged diameter portion 288, the airtight space S can be made into negative pressure even if the balloon body 60C is attached to the suction hole 296. The balloon body 60C is closely attached to the inner wall of the cylindrical body 282 stably.

[0148] like Fig.31 As shown, the insertion portion 12 of the endoscope 10 is inserted into the balloon 300 with the mounting clamp. The insertion portion 12 is moved from the second opening 282B to the first opening 282A, and the insertion portion 12 is inserted into the balloon 60 disposed inside the cylindrical body 282. When the insertion portion 12 is inserted into the balloon 60, the balloon body 60C is in a state of being inflated by the syringe 320.

[0149] The positional relationship between the insertion portion 12 of the endoscope 10 and the balloon 300 with the mounting jig is adjusted. A portion of the insertion portion 12 of the endoscope 10 is disposed inside the cylindrical body 282 of the mounting jig 280 and inside the balloon 60 .

[0150] The syringe 320 used for suction is pulled out from the Luer connector 294. The balloon body 60C is restored from the expanded state to the natural state.

[0151] Since the inner diameters of the first opening 282A and the second opening 282B of the tubular body 282 are larger than the outer diameter of the insertion portion 12 of the endoscope 10 , the worker can easily insert the insertion portion 12 into the tubular body 282 .

[0152] The first tube 60A of the balloon 60 is enlarged in diameter by the first holding portion 284, and the second tube 60B is enlarged in diameter by the second holding portion 286, so the staff does not need to install the first tube 60A and the second tube 60B on the insertion portion 12 of the endoscope 10 while enlarging their diameters. Since the balloon body 60C is inflated by the syringe 320, the insertion portion 12 of the endoscope 10 can be easily inserted into the inner side of the balloon 60.

[0153] like Fig.32As shown, the first tube portion 60A held in the first holding portion 284 and folded back is restored to the state before the folding back. Similarly, the second tube portion 60B held in the second holding portion 286 and folded back is restored to the state before the folding back. Through these actions, the balloon 60 is installed in the insertion portion 12 of the endoscope 10.

[0154] The first tube portion 60A and the second tube portion 60B are narrowed by elastic force toward the radial inner side of the insertion portion 12. The first tube portion 60A and the second tube portion 60B are in close contact with the outer periphery of the insertion portion 12. The balloon 60 is held at a predetermined position of the insertion portion 12 by this elastic force.

[0155] like Fig.33 As shown, the first balloon fixing component 61, which has been enlarged in diameter by the first retaining portion 284, is slid toward the first tube portion 60A. The first balloon fixing component 61 is narrowed by the elastic force toward the radial inner side of the insertion portion 12. The first balloon fixing component 61 is closely fitted to the outer periphery of the first tube portion 60A by the elastic force, and the first balloon fixing component 61 fixes the first tube portion 60A to the insertion portion 12.

[0156] The second balloon fixing component 62, which has been enlarged in diameter by the second holding portion 286, is slid toward the second tube 60B. The second balloon fixing component 62 is narrowed by the elastic force toward the radial inner side of the insertion portion 12. The second balloon fixing component 62 is closely attached to the outer periphery of the second tube 60B by the elastic force, and the second balloon fixing component 62 fixes the second tube 60B to the insertion portion 12.

[0157] Then, if Fig.34 As shown, the mounting jig 280 is removed from the insertion portion 12 of the endoscope 10 to which the balloon 60 is mounted, and the balloon 60 is mounted on the insertion portion 12 of the endoscope 10 .

[0158] The present invention has been described above, but the present invention is not limited to the above examples, and various improvements or deformations can be made without departing from the scope of the present invention. The balloon used in the balloon with the mounting clamp is not particularly limited. For example, it can be applied to a balloon for ultrasonic endoscope.

Claims

1. A balloon with a mounting fixture, comprising a mounting fixture for mounting the balloon on an insertion portion of an endoscope and the balloon, wherein: The balloon has: A first tube portion, disposed at one end of the balloon; a second tube portion, disposed at the other end of the balloon; and The balloon body is arranged between the first tube part and the second tube part. The mounting jig includes a cylindrical body having an inner diameter larger than an outer diameter of an insertion portion of the endoscope. In a state where the first tube portion and the second tube portion are arranged at positions protruding from the cylindrical body and the balloon main body is arranged inside the cylindrical body, One end of the cylindrical body has a first holding portion for holding a portion of the first cylindrical portion that is folded outward toward the second cylindrical portion, and the first holding portion elastically deforms the first cylindrical portion to a state in which the diameter is enlarged compared to a natural state. The other end of the cylindrical body has a second holding portion for holding the portion of the second cylindrical portion folded back toward the outside of the first cylindrical portion, and the second holding portion elastically deforms the second cylindrical portion to a state in which the diameter is enlarged compared to a natural state. The mounting jig has a slit along the axis of the mounting jig, the slit communicating the outside and the inside of the cylindrical body, and the insertion portion of the endoscope can pass through the slit in a direction orthogonal to the axis.

2. The balloon with a mounting fixture according to claim 1, wherein: The mounting jig has a C-shaped or U-shaped cross-sectional shape when viewed in a cross section cut along a plane perpendicular to the axis.

3. The balloon with a mounting fixture according to claim 1, wherein: The outer periphery of the tubular body includes: a first tubular balloon fixing member whose diameter is enlarged by the tubular body and arranged on the one end side; and a second tubular balloon fixing member whose diameter is enlarged by the tubular body and arranged on the other end side.

4. The balloon with a mounting fixture according to claim 1, wherein: The first holding portion includes a first tapered portion whose diameter increases toward the second holding portion. The second holding portion includes a second tapered portion whose diameter increases toward the first holding portion.

5. The balloon with a mounting fixture according to any one of claims 1 to 4, wherein: The mounting jig is made of at least one resin material selected from the group consisting of polyethylene, acrylonitrile-butadiene-styrene copolymer synthetic resin, polycarbonate, polyamide, polyamideimide, polysulfone, polyethylene terephthalate, and polyvinyl chloride.

6. A packaging body, wherein: have: The balloon with a mounting fixture according to any one of claims 1 to 5; and A container houses the balloon with the mounting fixture.

7. A method for installing a balloon, wherein: Prepare a balloon with a mounting fixture as described in any one of claims 1 to 5; inserting the insertion portion of the endoscope from the second holding portion side of the mounting jig toward the first holding portion side; The balloon is mounted on the insertion portion of the endoscope by restoring the first tube portion held by the first holding portion and folded back to a state before the folding back, and restoring the second tube portion held by the second holding portion and folded back to a state before the folding back; The mounting jig is removed from the insertion portion of the endoscope.

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