JP5224952B2 - Endoscope balloon mounting aid, endoscope balloon mounting kit, and endoscope system - Google Patents

Description

  The present invention relates to a mounting aid, a balloon mounting kit for an endoscope, and an endoscope system that are used when a balloon made of an elastic material is mounted on a distal end portion of an insertion portion of an endoscope.

Examples of the endoscope used with the balloon attached include an ultrasonic endoscope, a balloon endoscope, a cell sheet conveying endoscope, and the like.
For example, when attaching a balloon made of an elastic material to a distal end portion having an ultrasonic probe of an insertion portion of an ultrasonic endoscope, conventionally, a hand or a mounting aid (mounting jig) disclosed in Patent Document 1 is used. Then, the balloon was expanded, and the expanded balloon was put on the tip (ultrasonic probe).
Japanese Patent No. 3425785

Endoscopes in recent years have a tendency to reduce the diameter of the insertion portion in order to reduce the burden on the patient, and in particular, endoscopes for trachea are remarkably reduced in diameter. Therefore, the diameter of balloons attached to these endoscopes has been reduced.
However, since it is not easy to spread a small-diameter balloon using a hand or a conventional attachment aid, it is becoming difficult to attach the small-diameter balloon to the distal end portion of the small-diameter insertion portion. In particular, in the case of an endoscope using a balloon, it is necessary to fit the opening end of the balloon in a mounting groove (annular groove) for preventing balloon drop formed at the distal end portion of the insertion portion, which is particularly difficult to mount.

  The present invention relates to an endoscopic balloon mounting aid, an ultrasonic endoscopic balloon mounting kit, and an endoscope, in which a small-diameter balloon made of an elastic material can be easily mounted on the distal end portion of the endoscope. The purpose is to provide a system.

An endoscope balloon mounting aid according to the present invention is a mounting aid for covering a distal end portion of an insertion portion of an endoscope with a balloon made of an elastic material, and includes a pair of opening and closing pieces and the pair of opening and closing pieces. A connecting portion for connecting a piece, and when the opening and closing piece and the connecting portion are in a free state, the opening and closing piece is separated from each other, and at least one of the opening and closing piece and the connecting portion is elastically deformed. approach each other, extending in a direction substantially perpendicular to the extension direction of the separation direction and the opening and closing piece of the pair of closing pieces, projecting a removably insert piece in the opening of the balloon, into the insertion piece, the balloon An engaging groove that engages with the mouth-wrapping part that is thicker than the other part formed in the peripheral part of the opening is formed .

  It is preferable that the pair of opening / closing pieces have a plate shape substantially parallel to each other, and the pair of the insertion pieces have a plate shape substantially parallel to each other.

It is preferable that a finger holding part for placing a finger on the opening / closing piece is provided in a protruding manner.
In this case, the finger contact part and the insertion piece may have substantially the same longitudinal position of the opening / closing piece, and the finger contact part is located closer to the distal end side of the opening / closing piece than the insertion piece. It may be.

The balloon mounting kit for an ultrasonic endoscope of the present invention has a balloon made of an elastic material that is detachably placed on the distal end portion of the endoscope, a pair of opening and closing pieces, and a connecting portion that connects the pair of opening and closing pieces. A mounting aid for mounting the balloon on the tip, and the opening of the balloon in a free state when the opening and closing piece and the connecting portion are in a free state on a pair of the opening and closing pieces. The separating direction of the pair of opening and closing pieces that are spaced apart from each other at a wider interval and approach each other until at least one of the opening and closing pieces and the connecting portion is elastically deformed to be inserted into the opening of the balloon. And an insertion piece extending in a direction substantially orthogonal to the extending direction of the opening / closing piece, and the mouthpiece having a thicker wall than the other part formed on the peripheral edge of the opening of the balloon is engaged with the insertion piece. Patent that the formation of the engagement groove which case It is set to.

  When an external force other than the elastic force of the balloon is removed from the mounting aid with the pair of insertion pieces inserted into the balloon, the distance between the pair of opening and closing pieces increases in parallel or toward the distal end side. Thus, it is preferable to set the elasticity of the mounting aid and the balloon.

An ultrasonic endoscope system according to the present invention includes an endoscope, a balloon made of an elastic material that is detachably placed on the distal end portion of the endoscope, a pair of opening and closing pieces, and a connecting portion that connects the pair of opening and closing pieces. A mounting aid for mounting the balloon to the tip, and the balloon in a free state when the pair of the open / close pieces are in a free state. Until the opening of the balloon and the distal end of the endoscope are spaced apart from each other at a wider interval, and at least one of the opening / closing piece and the connecting portion is elastically deformed to be inserted into the opening of the balloon. An insertion piece that extends in a direction substantially perpendicular to the approaching direction of the pair of opening and closing pieces and the extending direction of the opening and closing pieces protrudes and is formed on the insertion piece at the peripheral edge of the opening of the balloon Engage with the thicker winding part than the part of It is characterized in that the formed grooves.

According to the first, seventh, and ninth aspects of the present invention, the pair of insertion pieces are brought closer to each other by elastically deforming at least one of the pair of opening and closing pieces and the connecting portion of the attachment assisting tool, and the pair of insertion pieces are attached to the balloon. When the mounting aid is returned to the free state after being inserted into the opening, the pair of insertion pieces are separated (opened) to elastically expand the opening of the balloon. Accordingly, the distal end portion of the insertion portion of the endoscope can be inserted into the opening portion of the balloon from between the pair of opening / closing pieces. Then, if the pair of insertion pieces of the wearing aid is moved in the escape direction from the inside of the balloon, the pair of insertion pieces are pulled out from the balloon without contacting the wearing aid and the insertion portion of the endoscope. . Then, since the balloon is elastically restored, it is automatically attached to the distal end portion (ultrasonic probe) of the endoscope, so that the small diameter balloon can be easily attached to the distal end portion of the small diameter insertion portion.
In addition, the operator can perform the operation of inserting the distal end portion of the endoscope into the balloon and the operation of pulling out the inserted piece from the balloon in a state where the force is removed from the mounting aid, thereby reducing the burden on the operator. Is possible.
Furthermore, since the insertion piece projects from the opening / closing piece in a direction substantially perpendicular to the separating direction of the pair of opening / closing pieces and the extending direction of the opening / closing pieces, the insertion piece may increase the longitudinal dimension of the opening / closing piece. Absent. Therefore, it is possible to make the whole mounting aid compact in the longitudinal direction.
Furthermore, by engaging the mouth wound portion of the balloon with the engaging groove of the pair of insertion pieces, the mounting state of the balloon with respect to the pair of insertion pieces can be reliably maintained. Therefore, it is easier to attach the balloon to the distal end portion of the endoscope.

  According to the second aspect of the present invention, when the mounting aid is in a free state with the pair of insertion pieces inserted into the balloon, the opening size of the balloon expanded by the pair of insertion pieces is the same as that of the endoscope. Since it becomes larger than the distal end portion of the insertion portion, it becomes easier to insert the distal end portion of the endoscope into the balloon.

If it comprises like Claim 3 , the opening / closing operation | work of the opening / closing piece by an operator will become easier.

According to the fourth aspect of the present invention, since the distance from the connecting portion that is the opening / closing fulcrum of the opening / closing piece to the operator's grasping position (finger holding portion) is increased, the operator can open / close the opening / closing piece with a small force. It becomes like this.
In particular, when positioned on the distal end side of the opening and closing piece than finger hold is insert as claimed in claim 5, the effect becomes remarkable.

According to the sixth aspect , the opening / closing operation of the opening / closing piece by the operator is further facilitated.

According to the structure of claim 8 , when the opening of the balloon is expanded by the elastic force in the opening direction of the pair of insertion pieces (opening and closing pieces), the distance between the pair of opening and closing pieces becomes narrower toward the distal end side. In comparison, it becomes easier to pass the distal end portion of the endoscope between the pair of insertion pieces.

Hereinafter, an embodiment of the present invention will be described with reference to FIGS. In the following description, the front-rear direction defines the distal end side of the insertion portion 12 of the ultrasonic endoscope 10 as “front” and the proximal end side of the insertion portion 12 as “rearward”.
An ultrasonic endoscope 10 shown in FIG. 1 is a medical endoscope for trachea, and includes an operation unit 11, an insertion unit 12 extending forward from the operation unit 11, and both the operation unit 11 and the insertion unit 12 on the opposite side. An extending universal tube 13 and an ultrasonic image transmission tube 14 are provided. The ultrasonic image transmission tube 14 is connected to an ultrasonic diagnostic apparatus (not shown), and the universal tube 13 is connected to a processor (image processing apparatus / light source apparatus, not shown). The processor and the processor are both connected to a monitor (not shown).
The portion that forms the vicinity of the distal end portion of the insertion portion 12 is a bending portion 17 that bends in the vertical and horizontal directions in accordance with the rotation operation of the bending operation lever 15 provided in the operation portion 11. Is a flexible tube portion 18 that is bent by its own weight or a direct operation of an operator.
As shown in FIGS. 1 and 8, the distal end portion 19 of the insertion portion 12 with respect to the bending portion 17 is a distal end portion 19 made of hard resin. An inclined surface 20 is formed in the latter half of the tip 19, and an objective lens 21, an illumination lens 22, and the like are provided on the inclined surface 20. An ultrasonic probe 23 located immediately before the inclined surface 20 is formed in the front half of the tip 19. Further, an annular groove 24 is formed over the entire circumference in a portion located between the inclined surface 20 of the tip 19 and the ultrasonic probe 23.

The ultrasonic endoscope 10 is used by covering the front half (the portion where the ultrasonic probe 23 is formed) of the distal end portion 19 with a balloon B1 made of an elastic material (for example, silicon rubber) shown in FIGS. To do. Specifically, the mouth-wound part B3 formed at the peripheral part of the opening B2 of the balloon B1 (the annular part thicker than the other part formed by winding up the peripheral part) is elastically fitted into the annular groove 24. Then, the space formed between the front half of the tip 19 and the balloon B1 is filled with water and used.
Since the balloon B1 is smaller than the front half of the tip 19 in a free state, the balloon B1 is covered with the tip 19 while being elastically deformed so that the mouth wound part B3 expands. However, since the diameter of the distal end portion 19 of the ultrasonic endoscope 10 which is an endoscope for trachea is extremely small (for example, about 7 mm), the diameter of the balloon B1 designed in accordance with the ultrasonic endoscope 10 in a free state. Is extremely small (for example, about 1 mm to 3 mm in inner diameter). Therefore, it is difficult for the surgeon to cover the front half of the distal end portion 19 with the balloon B1 while expanding the wound portion B3 by hand.
Therefore, in this embodiment, the balloon B1 is attached to the front half of the distal end portion 19 by using the attachment aid 30 described below.

As shown in FIGS. 2, 3, 4, and the like, the mounting aid 30 is formed by bending an integrated plate material punched from a metal plate, and a pair of plate-like members extending linearly while being substantially parallel to each other. An opening / closing piece 31 and a connecting portion 36 having a substantially C-shape in plan view for connecting the base ends of the pair of opening / closing pieces 31 are provided.
The opening / closing piece 31 is gradually narrower toward the distal end side, and in particular, the vicinity of the distal end portion is a narrow width portion 32 whose width is sharply narrower than that portion. A plate-like insertion piece 33 extending in a direction substantially perpendicular to the separating direction of the pair of opening and closing pieces 31 and the extending direction of the opening and closing pieces 31 is integrally projected at the edge of the narrow width portion 32. is there. Further, engaging grooves 34 are provided in both end portions of the base end portion of the insertion piece 33 (connection portion with the narrow width portion 32).
As shown in the drawing, the maximum width of the connecting portion 36 is larger than the interval between the base end portions of the two open / close pieces 31. The entire surface of the wearing aid 30 is coated with a fluororesin. Further, the peripheral edge portion of the mounting aid 30 is chamfered over the entire circumference.
In the mounting aid 30 having such a structure, the pair of opening and closing pieces 31 are separated from each other in the free state (the state shown in FIGS. 2 and 11), and the interval between the pair of narrow width portions 32 and the insertion pieces 33 is ultrasonic. The width is wider than the width of the distal end portion 19 of the endoscope 10. Further, the distance between the pair of narrow width portions 32 and the insertion pieces 33 at this time is wider than the distance between the base end portions of the opening and closing pieces 31 and wider than the diameter of the balloon B1 (see FIG. 4) in a free state. . When the pair of opening / closing pieces 31 is held with fingers and pressed in a direction approaching the pair of opening / closing pieces 31 (elastically deformed), the pair of opening / closing pieces 31 has a narrow portion 32 as shown in FIG. And it can approach to the position where insertion piece 33 contacts. In addition, even if the mounting aid 30 is elastically deformed to a position where the pair of insertion pieces 33 come into contact with each other, the base end portions of the opening / closing piece 31 are hardly approached.

Next, a procedure for mounting the balloon B1 on the front half of the distal end portion 19 of the ultrasonic endoscope 10 using the mounting aid 30 having such a structure will be described.
First, a pair of opening / closing pieces 31 (for example, a wider portion on the base end side than the narrow width portion 32) of the attachment assisting tool 30 is grasped by an operator's hand (not shown), and the pair of opening / closing pieces 31 are brought close to each other. It is elastically deformed in the direction (see FIG. 4). Then, since a pair of narrow part 32 and the insertion piece 33 mutually contact, as shown in FIG. 4, the insertion piece 33 of the mounting aid 30 is made to approach balloon B1 in a free state. Then, as shown in FIG. 5, one end portion of the pair of insertion pieces 33 is inserted into the balloon B1 in a free state from the mouth-wrapping portion B3 (opening portion B2), and the mouth-wrapping portion B3 is inserted into one engagement groove. 34 is engaged. Further, as shown in FIG. 6, the balloon B <b> 1 is covered over the entire insertion piece 33, and the mouth-wrapping part B <b> 3 is also engaged with the other engagement groove 34. As shown in FIG. 6, since the width of the insertion piece 33 (the longitudinal length in FIG. 6) is slightly larger than the diameter of the opening B2 of the balloon B1 in the free state, when the pair of insertion pieces 33 are inserted into the balloon B1, The balloon B1 extends (lengthens) in the width direction of the insertion piece 33 in a plan view (when viewed from the upper side in FIG. 6), and extends in a direction opposite to the pair of insertion pieces 33 (a direction perpendicular to the paper surface in FIG. 6). Shrinks (narrows).

When the pair of insertion pieces 33 are thus inserted into the balloon B1, the gripping force applied to the pair of opening / closing pieces 31 is released. Then, the pair of opening and closing pieces 31 are substantially parallel as shown in FIG. 7 by the elastic force of the balloon B1 and the mounting aid 30 (in FIG. 7, the distance between the distal ends of the pair of opening and closing pieces 31 is slightly larger than the distance between the proximal ends). However, the pair of opening / closing pieces 31 is opened so that the elasticity of the balloon B1 and the mounting aid 30 may be set so that the pair of opening / closing pieces 31 are parallel to each other. The balloon B1 is expanded in the width direction of the mounting aid 30 (the separation direction of the opening / closing piece 31).
Next, as shown in FIG. 8, the distal end portion 19 of the ultrasonic endoscope 10 is positioned directly below the pair of narrow width portions 32. At this time, since the clearance between the pair of narrow width portions 32 and the insertion piece 33 is larger than the outer diameter of the distal end portion 19 of the ultrasonic endoscope 10, the distal end portion 19 (ultrasonic endoscope 10) is shown in FIG. When linearly moving upward from the position of the solid line, the tip 19 passes through the pair of narrow portions 32 and the insertion piece 33 without contact. As shown in FIG. 10, the size of the opening B2 of the balloon B1 expanded by the pair of insertion pieces 33 is larger than the diameter of the front half of the distal end portion 19 (the portion where the ultrasonic probe 23 is formed). Therefore, when the distal end portion 19 of the ultrasonic endoscope 10 is further linearly moved upward, the distal end portion 19 enters the balloon B1 from the opening B2 (mouth wound portion B3) (see FIG. 9).
As shown in FIG. 11, when the pair of insertion pieces 33 are pulled out from the inside of the balloon B1 by moving the pair of insertion pieces 33 downward from this state, the distal end portion 19 is contracted by the elasticity of the balloon B1. The front winding part B3 automatically fits (adheres) to the annular groove 24.

As described above, in the present embodiment, the distal end portion 19 of the ultrasonic endoscope 10 can be inserted into the balloon B1 from a direction substantially orthogonal to the longitudinal direction of the opening / closing piece 31, so that the distal end portion 19 has a pair of narrow widths. When passing between the portion 32 and the insertion piece 33, the distal end portion 19 does not interfere with the proximal end portion of the opening / closing piece 31 with respect to the narrow width portion 32. In addition, the insertion piece 33 can be inserted into the balloon B1 in a state in which the wound part B3 of the balloon B1 is fixed to the pair of engaging grooves 34 (prevents removal from the insertion piece 33). Therefore, if the mounting aid 30 of the present embodiment is used, the small-diameter balloon B1 can be easily mounted on the small-diameter distal end portion 19 of the ultrasonic endoscope 10.
Furthermore, since the small-diameter distal end portion 19 of the ultrasonic endoscope 10 can be attached to the balloon B1 without contacting the pair of narrow width portions 32 and the insertion piece 33, the objective lens 21, the illumination lens 22, and the ultrasonic probe 23 are attached. However, there is no risk of being damaged by the mounting aid 30.
Moreover, since the insertion piece 33 is pulled out from the inside of the balloon B1 without interfering with the insertion portion 12, the attachment assisting tool 30 can smoothly perform the pulling-out operation.
Further, the insertion operation of the distal end portion 19 into the balloon B1 and the extraction operation of the insertion piece 33 from the balloon B1 are performed in a state in which the operator removes the force from the mounting aid 30 (pinch the mounting aid 30 and Therefore, the burden on the operator can be reduced.

Further, the insertion piece 33 is not provided on the front end surface of the opening / closing piece 31 while projecting in the extending direction of the opening / closing piece 31, but in a direction substantially orthogonal to the separating direction of the pair of opening / closing pieces 31 and the extending direction of the opening / closing piece 31. Thus, the longitudinal dimension of the opening / closing piece 31 is not increased by the presence of the insertion piece 33. Therefore, the longitudinal dimension of the mounting aid 30 can be made compact.
In addition, since the mounting aid 30 of the present embodiment is formed by punching a metal plate and then applying fluororesin to the entire surface and chamfering the peripheral portion, the entire surface of the mounting aid 30 is smooth. is there. Therefore, also in this respect, the insertion / removal operation of the insertion piece 33 to / from the balloon B1 can be performed smoothly, and the surface (inner surface) of the balloon B1 is not damaged during the insertion / removal operation to the balloon B1. In order to make the entire surface of the wearing aid 30 smooth, the surface of the wearing aid 30 may be polished instead of applying the fluororesin coat, but the fluorine tree coat is superior in terms of surface protection. .

As mentioned above, although this invention was demonstrated based on the said embodiment, this invention is not limited to the said embodiment, It can implement, giving various deformation | transformation.
For example, as shown in FIGS. 12 to 14, a finger contact portion may be provided so that the operator can touch (hold) a finger on the opening / closing piece 31.
In the mounting aid 40 of the first modification shown in FIG. 12, a narrow portion 42 is formed in the vicinity of the tip of the opening / closing piece 41 (the opening / closing piece 41 has a shape different from that of the opening / closing piece 31, The shape of the narrow width portion 42 is different from that of the narrow width portion 32), and the insertion piece 33 and the engagement groove 34 are formed at the tip of the opening / closing piece 41. A finger contact portion 43 that protrudes toward the opposite side of the insertion piece 33 is integrally formed at the distal end portion of the narrow width portion 42. On the other hand, in the mounting aid 50 of the second modification shown in FIG. 13, a narrow width portion 52 is formed in the vicinity of the tip of the opening / closing piece 51 (the opening / closing piece 51 has a shape different from that of the opening / closing piece 31, The opening / closing piece 51 has a plate shape substantially parallel to the opening / closing piece 51. The shape of the narrow width portion 52 is different from that of the narrow width portion 32). Yes. A finger holding portion 53 that protrudes toward the opposite side of the insertion piece 33 is integrally formed at the distal end portion of the narrow width portion 52.
As described above, when the finger holding portions 43 and 53 are provided at the distal end portions of the opening and closing pieces 41 and 51, the operator's grasping position (the finger holding portions 43 and 53) from the connection portion 36 that is the opening and closing fulcrum of the opening and closing pieces 41 and 51. ) Becomes longer, the operator can open and close the opening and closing pieces 41 and 51 with a small force.
In the mounting aid 60 of the third modification shown in FIG. 14, a narrow width portion 62 is formed in the vicinity of the tip of the opening / closing piece 61 (the opening / closing piece 61 has a shape different from that of the opening / closing piece 31, but The shape of the narrow width portion 62 is different from that of the narrow width portion 32), and the insertion piece 33 and the engagement groove 34 are formed at the edge of the narrow width portion 62. . A plate-like shape that is located at a position farther from the connection portion 36 than the narrow width portion 62 (insertion piece 33) and extends in a direction substantially parallel to the opening / closing piece 61 (narrow width portion 42) is provided at the tip of the narrow width portion 62. The finger holder 63 protrudes integrally.
When the finger holder 63 is arranged at a position farther from the connecting portion 36 than the insertion piece 33 as in the third modification, the operator can open and close the insertion piece 33 with a smaller force. is there.

Further, as shown in FIGS. 15 and 16, a non-slip portion may be formed on the outer surface of the opening / closing piece 31.
In the mounting assisting tool 70 of the fourth modified example shown in FIG. 15, a non-slip portion is formed by forming a plurality of linear recesses 71 side by side in the vicinity of the tip portions on both side surfaces of the opening / closing piece 31. On the other hand, in the mounting aid 80 of the fifth modified example shown in FIG. 16, the non-slip portion is formed by forming the lattice-shaped recess 81 in the vicinity of the tip portion on both side surfaces of the opening / closing piece 31.
If such a non-slip portion is formed, the operator can more easily open and close the opening and closing piece 31.
In addition, it is also possible to form an antiskid part by the convex part formed in the outer surface of the opening / closing piece 31 instead of a dent, and the shape of an antiskid part is not limited to what was illustrated.

Further, like the mounting aid 90 of the sixth modification shown in FIGS. 17 and 18, a plate-like insertion piece 91 that forms a rectangular shape in the side view (no engagement groove 34 is formed) in the narrow width portion 32. You may project. A stopper 92 is formed at the distal end of the insertion piece 91 by bending. When the insertion piece 91 is inserted into the balloon B1, the balloon B1 is unexpectedly dropped from the insertion piece 91 by the stopper 92. Is prevented.
It should be noted that a modification of the finger pad shown in FIGS. 12 to 14, a modification of the anti-slip part shown in FIGS. 15 and 16, and a modification of the insertion piece shown in FIGS. 17 and 18 are combined with each other. May be implemented.

Further, only the connection part 36 of the mounting aids 30, 40, 50, 60, 70, 80, 90 is elastically deformed to bring the pair of opening / closing pieces 31, 41, 51, 61 closer to each other, or the opening / closing pieces 31, 41 , 51, 61 and the connecting portion 36 may be elastically deformed simultaneously to bring the pair of opening / closing pieces 31, 41, 51, 61 closer to each other.
Furthermore, although the said embodiment and each modification are things when this invention inserts a balloon in the front-end | tip part of the ultrasonic endoscope 10, this invention does not use a balloon like a balloon endoscope or a cell delivery system. It is also applicable to the system to be installed.

1 is an overall view of an ultrasonic endoscope according to an embodiment of the present invention. It is a perspective view of a mounting aid. It is a side view which shows a part of mounting aid. It is a perspective view of the separation state of a balloon and a mounting aid. It is a side view when the edge part of the insertion piece of a mounting aid is inserted in the balloon. It is a side view which shows the state which inserted the insertion piece in the balloon. It is a perspective view when the gripping force applied to the mounting aid after the insertion piece is inserted into the balloon is released. It is a perspective view which shows the state just before inserting the front-end | tip part of an ultrasonic endoscope into the balloon with which the pair of insertion piece was mounted | worn. It is a front view when the front-end | tip part of an ultrasonic endoscope is inserted in the balloon with which the pair of insertion piece was mounted | worn. It is sectional drawing which follows the XX arrow line of FIG. It is a front view when the insertion piece of a mounting aid is pulled out from the balloon. It is a side view of the mounting aid of the 1st modification. It is a side view of the mounting aid of the 2nd modification. It is a side view of the mounting aid of the 3rd modification. It is a side view of the mounting aid of the 4th modification. It is a side view of the mounting aid of the 5th modification. It is a side view of the mounting aid of the 6th modification. It is a front view of the mounting aid of the 6th modification.

Explanation of symbols

10 Ultrasound endoscope (endoscope)
DESCRIPTION OF SYMBOLS 11 Operation part 12 Insertion part 13 Universal tube 14 Ultrasound image transmission tube 15 Bending operation lever 17 Bending part 18 Flexible tube part 19 Tip part 20 Inclined surface 21 Objective lens 22 Illumination lens 23 Ultrasonic probe 24 Annular groove 30 Attaching assistance Tool 31 Opening / Closing piece 32 Narrow part 33 Inserting piece 34 Engaging groove 36 Connection part 40 Mounting aid 41 Opening / closing piece 42 Narrow part 43 Fingering part 50 Mounting aid 51 Opening / closing piece 52 Narrow part 53 Fingering part 60 Attachment Auxiliary tool 61 Opening and closing piece 62 Narrow width part 63 Finger holding part 70 Attaching auxiliary tool 71 Linear recess (non-slip part)
80 Wearing aid 81 Lattice-shaped recess (non-slip part)
90 Wearing support tool 91 Insertion piece 92 Stopping part B1 Balloon B2 Opening part B3 Oral winding part

Claims (9)

An attachment aid for covering a balloon made of an elastic material on the distal end portion of the insertion portion of the endoscope,
A pair of opening and closing pieces and a connecting portion for connecting the pair of opening and closing pieces;
The pair of opening and closing pieces, which are separated from each other when the opening and closing pieces and the connecting portion are in a free state, and are brought close to each other by elastic deformation of at least one of the opening and closing pieces and the connecting portion. An insertion piece that extends in a direction substantially perpendicular to the separating direction and the extension direction of the opening and closing piece, and is detachable from the opening of the balloon ;
An insertion aid for an endoscopic balloon, wherein the insertion piece is formed with an engagement groove that engages with a mouth-wrapping portion that is thicker than the other portion formed in the peripheral portion of the opening of the balloon. . The endoscopic balloon attachment aid according to claim 1,
The pair of opening and closing pieces are plate-like that are substantially parallel to each other,
A mounting aid for an endoscopic balloon having a plate shape in which the pair of insertion pieces are substantially parallel to each other. The attachment aid for the endoscope balloon according to claim 1 or 2 ,
An attachment aid for an endoscopic balloon in which a finger rest for projecting a finger is provided on the opening / closing piece. The endoscopic balloon attachment aid according to claim 3 ,
An attachment aid for an endoscopic balloon in which the position of the opening / closing piece in the longitudinal direction of the finger holding part and the insertion piece is substantially the same. The endoscopic balloon attachment aid according to claim 3 ,
An attachment aid for an endoscopic balloon in which the finger holder is positioned closer to the distal end side of the opening / closing piece than the insertion piece. The mounting aid for an endoscopic balloon according to any one of claims 1 to 5 ,
An attachment aid for an endoscopic balloon having a non-slip portion formed on the surface of the opening / closing piece. A balloon made of an elastic material that is detachably placed on the distal end of the endoscope;
A mounting aid for mounting the balloon to the distal end portion, and having a pair of opening and closing pieces and a connecting portion for connecting the pair of opening and closing pieces;
When the opening and closing piece and the connecting portion are in a free state, the pair of opening and closing pieces are spaced apart from each other by a wider interval than the opening of the balloon in the free state, and at least the opening and closing piece and the connecting portion are one approach each other until insertable into the opening of the balloon by elastic deformation, projecting the insert piece extending in a direction substantially perpendicular to the extension direction of the separation direction and the opening and closing piece of the pair of closing pieces And
An endoscope balloon mounting kit, wherein an engagement groove is formed in the insertion piece to engage with a mouth-wrapping portion having a thickness greater than that of another portion formed on a peripheral portion of the opening of the balloon. The endoscope balloon mounting kit according to claim 7 ,
When an external force other than the elastic force of the balloon is removed from the mounting aid with the pair of insertion pieces inserted into the balloon, the distance between the pair of opening and closing pieces increases in parallel or toward the distal end side. As described above, an endoscope balloon mounting kit in which the elasticity of the mounting aid and the balloon is set. An endoscope,
A balloon made of an elastic material that is detachably placed on the distal end of the endoscope;
A mounting aid for mounting the balloon to the distal end portion, and having a pair of opening and closing pieces and a connecting portion for connecting the pair of opening and closing pieces;
When the opening and closing piece and the connecting portion are in a free state, the pair of opening and closing pieces are separated from each other at a wider interval than the opening of the balloon and the distal end of the endoscope in the free state, and the opening and closing Nearly perpendicular to the separating direction of the pair of opening and closing pieces and the extending direction of the opening and closing pieces, which approach each other until at least one of the pieces and the connecting portion is elastically deformed to be inserted into the opening of the balloon. Projecting an insertion piece extending in the direction ,
An endoscope system characterized in that an engagement groove is formed in the insertion piece to engage with a mouth-wrapping portion having a thickness larger than that of other portions formed in the peripheral portion of the opening of the balloon .

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