JP2010154918A - Endoscope insertion guide - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an endoscope insertion guide capable of easily and quickly expanding the inside of a body cavity while supplying a medical agent into the body cavity without forcing burdens on an operator or a subject. <P>SOLUTION: In the endoscope insertion guide 100 for inserting a cylindrical body 1 into the body cavity, expanding the body cavity, then inserting the insertion part of an endoscope into the cylindrical body 1 and guiding it inside the body cavity, the cylindrical body 1 comprises: a ring-like fixing member 3 on one end side; a plurality of frame members 5 bonded along the circumferential direction of the ring-like fixing member 3 and extending in a direction along the axis G of the cylindrical body 1; and a ring-like balloon member 7 bonded to the other end side opposite to the ring-like fixing member 3 of the frame member 5, for expanding the frame member 5 by expansion by the supply of fluid and narrowing the frame member 5 by shrinkage by the discharge of the fluid. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an endoscope insertion guide that guides an insertion portion of an endoscope into a body cavity after the body cavity is expanded by being inserted into the body cavity.

  As the endoscope of the upper digestive tract, one that performs oral insertion in which an endoscope insertion portion is inserted into a body cavity through the oral cavity is generally used. However, when the endoscope insertion portion passes through the throat, a throat reflex or a vomiting reaction occurs when the endoscope insertion portion touches the tongue base, resulting in discomfort. And since a subject inserts an endoscope insertion part in the state which mounted | wore the mouthpiece with the mouthpiece, the conversation with an operator becomes difficult.

  Therefore, in recent years, the diameter of the endoscope insertion portion has been reduced, and not only the oral cavity described above but also a transnasal insertion method has been adopted as the insertion path of the endoscope. When the endoscope insertion part is inserted from the nasal cavity, the feeling of vomiting is less likely to occur and the burden on the subject can be reduced. In addition, from the advantage that conversation and breathing with an operator can be easily performed, it is expected that transnasal insertion type endoscopic examination will increase in the future (see, for example, Patent Document 1).

  By the way, when the endoscope insertion portion is inserted into the nasal cavity, the insertion portion acts as a foreign substance and stimulates the sensitive nasal mucosa, which may place a burden on the subject. Therefore, in the stage before inserting the insertion part, among the insertion routes in the nasal cavity, the narrowest part, that is, the route from the middle nasal passage (or lower nasal passage) to the posterior nostril is expanded, and sensitivity to stimulation is further increased. Take measures to reduce In this procedure, for example, a plurality of flexible tubes with different diameters are inserted into the nasal cavity in the order of increasing diameter from the smallest to the nasal cavity, and the nasal cavity is gradually expanded. ing.

However, such a method increases the burden on the operator and the subject. In addition, the flexible tube to be inserted into the nasal cavity is time-consuming to insert an anesthetic agent or a vasoconstrictor into the nasal cavity while rotating it. Insufficient application, anesthetics and vasoconstrictors may be applied in areas other than the targeted area.
JP 2006-326063 A

  The present invention has been made in view of the above, and can easily and quickly expand a body cavity without imposing a burden on an operator or a subject, and guides an endoscope into the body cavity after expansion. It is an object to provide an endoscope insertion guide that can be used.

The present invention has the following configuration.
An endoscope insertion guide that inserts a cylindrical body into a body cavity and expands the body cavity and then inserts an insertion portion of the endoscope into the cylindrical body to guide the body cavity,
The cylindrical body is a ring-shaped fixing member on one end side,
A frame member that is joined along a circumferential direction of the ring-shaped fixing member and extends in a direction along the axis of the cylindrical body;
A ring-shaped balloon member that is joined to the other end of the frame member opposite to the ring-shaped fixing member, opens the frame member by expansion due to fluid supply, and squeezes the frame member by contraction due to fluid discharge; ,
Endoscope insertion guide equipped with.

  The endoscope insertion guide according to the present invention can easily and quickly expand the body cavity without imposing a burden on the operator or the subject, and can be used as a guide when inserting the endoscope. .

Hereinafter, the endoscope insertion guide will be described in detail with reference to the drawings.
FIG. 1 is a side view of an endoscope insertion guide for explaining an embodiment of the present invention, and FIG. 2 is a cross-sectional view taken along line AA of FIG.
The endoscope insertion guide 100 is inserted into a body cavity, for example, the nasal cavity to expand the nasal cavity, and is also used as a guide when inserting the endoscope. The cylindrical body 1 is inserted into the nasal cavity to insert the nasal cavity. After the expansion, the insertion portion of the endoscope is inserted into the cylindrical body 1 to guide the inside of the nasal cavity. And the expansion of the narrow part in the nasal cavity for inserting the endoscope, the drug application to the drug application to the narrow part in the nasal cavity, etc. are realized by the structure that the cylindrical body 1 can expand the diameter. Yes. In the present specification, “expansion” means that the guide is expanded, and “expansion” means that the nasal cavity is expanded.

  As shown in FIG. 1, in the endoscope insertion guide 100, the cylindrical body 1 is formed in a bowl shape with a ring-shaped fixing member 3, a plurality of frame members 5, and a ring-shaped balloon member 7. The cylindrical body 1 maintains the outer diameter D and the inner diameter d1 of the ring-shaped fixing member 3. That is, the ring-shaped fixing member 3 has a constant inner and outer diameter regardless of expansion / contraction. On the other hand, the outer diameter on the ring-shaped balloon member 7 side is d2 before the expansion, and D after the expansion. In the cylindrical body 1, the distal end side where the ring-shaped balloon member 7 is provided has an outer diameter d2 = φ3 mm in the initial state and an outer diameter D = 6 mm in the expanded state. Thereby, the pretreatment of the nasal cavity expansion | swelling with respect to an endoscope is attained.

  As shown in FIG. 2, the ring-shaped fixing member 3 is formed with a plurality of (four in the illustrated example) concave grooves 9 along the axial direction at equal intervals in the circumferential direction. The ring-shaped fixing member 3 is made of a soft elastic body such as silicon, latex, or polyethylene. The end of the frame member 5 is engaged with the concave groove 9, and a plurality (four in the illustrated example) of the frame member 5 are joined along the circumferential direction of the ring-shaped fixing member 3. It extends in the direction along. The frame member 5 is a framework of the endoscope insertion guide 100 and constitutes a cylindrical body as a whole, and has a pipe shape with a circular cross section.

  The base end of the frame member 5 is fixed in the concave groove 9 by, for example, heat welding or an adhesive. In addition, the groove width W of the concave groove 9 is formed narrower than the outer diameter of the frame member 5, and a pair of drop-off locking projections (not shown) facing the groove opening are provided, so that the frame member 5 is It is good also as a holding structure elastically clamped in 9. With such a holding structure, assemblability can be improved as compared with welding or fixing with an adhesive.

FIG. 3A is a cross-sectional view in the direction orthogonal to the axis in the vicinity of the ring-shaped balloon member in a reduced diameter state, and FIG. 3B is a side view thereof.
At the distal end portion of the cylindrical body 1 on the insertion side, the ring-shaped balloon member 7 is in a contracted state, and the frame members 5 are arranged close to each other in a reduced diameter state. In this state, the outer periphery of the tip may be held in a reduced diameter by temporary fixing means 11 such as gelatin that can be lost by body fluid or the like. By covering the tip with such a dissolvable temporary fixing means 11, it is possible to increase the diameter expansion regulating force of the cylindrical body 1, prevent diameter expansion (separation) during handling, and improve insertability.

4A is a cross-sectional view in the direction perpendicular to the axis in the vicinity of the ring-shaped balloon member in the expanded diameter state, and FIG. 4B is a side view thereof.
At least one of the frame members 5 is formed of a hollow pipe having a hollow portion 13 and supplies a fluid to the ring-shaped balloon member 7 through the hollow pipe. In other words, the frame member 5 can be used to supply and discharge the fluid for expanding the diameter without providing another liquid supply line to the ring-shaped balloon member 7 provided on the distal end side.

  The endoscope insertion guide 100 uses a gas such as air as an inflow fluid, so that the atmosphere in the environment such as a treatment room can be easily used, and the compression by receiving pressure from the inner wall of the nasal cavity is performed softly. And the pain during dilation of the nasal cavity is less likely to occur. The ring-shaped balloon member 7 is expanded in diameter by supplying air through one of the frame members 5 (the one on the back side in FIG. 4B). The type of gas is not limited to air, and any gas that can be prepared in a medical facility and does not harm the human body can be used. The air supply is not shown in the figure, but it may be a simple pump that is easy to handle and pumps the internal air by gripping a bag portion made of an elastic material. It may be a pump using.

  In addition to a simple pump, an electric air supply pump may be used. In that case, a safety valve that is opened at a predetermined constant pressure, a restraining member that restricts the diameter of the balloon beyond a certain level, or the like is provided so that the ring-shaped balloon member 7 is not excessively expanded by the diameter of the air supply pump. It is preferable.

  Furthermore, as the inflow fluid, an appropriate liquid such as physiological saline or oil can be used in addition to a gas such as air. Since the liquid hardly contracts due to pressure, the pressure control of the nasal cavity expansion operation can be performed more accurately.

  Further, the frame member 5 is formed of a hollow pipe in which at least one (three in the illustrated example) is formed with a drug application hole 15 that is a discharge hole along the axial direction, and the drug is passed through the nasal cavity through the hollow pipe. Supply in. The frame member 5 which is a structural member of the cylindrical body 1 can be used to uniformly apply the medicine over the entire length in the insertion direction and the circumferential direction.

  Examples of the drug include an anesthetic and a vasoconstrictor. As an anesthetic, for example, xylocaine can be used. As the vasoconstrictor, for example, 0.025 to 0.5% phenylephrine or oxymetazoline hydrochloride (neocinephrine or afrin) can be used. When an anesthetic is applied, the pain that tends to occur in the sensitive nasal mucosa is relieved. When a vasoconstrictor is applied, the nasal cavity can be expanded by vasoconstriction, and bleeding can be suppressed.

  As described above, the ring-shaped balloon member 7 expands the frame member 5 by expansion due to supply of fluid, and constricts the frame member 5 by contraction due to discharge of fluid. A central space portion 17 serving as an insertion port for the endoscope is opened at the tip of the cylindrical body 1 whose diameter is expanded by the expansion of the ring-shaped balloon member 7.

FIG. 5 is a cross-sectional view of the nasal cavity showing (a) to (f) the procedure for inserting the endoscope using the cylindrical body shown in FIG.
As shown in FIG. 5A, the endoscope insertion guide 100 is in an initial state before air is supplied, and the ring-shaped balloon member 7 is deflated. For example, the outer diameter d2 has a small diameter of about 3 mm. Reduced diameter. The nasal cavity 21 has a narrow hole portion 23 (not shown) corresponding to the entrance portion and having a relatively narrow passage diameter, and a wide hole portion (not shown) having a relatively large passage diameter. It leads to the upper gastrointestinal tract through the hole and pharynx.

  Before insertion into the nasal cavity 21, the endoscope insertion guide 100 is preliminarily coated with a drug such as a vasoconstrictor or a lubricant on the surface of the cylinder 1 (the surface of the frame member 5). As shown in FIG. 5 (b), the cylindrical body 1 to which the medicine is applied is inserted into the narrow hole portion 23 of the nasal cavity 21 with the tip diameter reduced. After the insertion, as shown in FIG. 5C, when air is supplied, the ring-shaped balloon member 7 expands and the outer diameter D is expanded (for example, about 6 mm). As a result, the narrow hole portion 23 having a relatively small inner diameter is expanded equally to the outer diameter D of the cylindrical body 1. At the same time, a medicine such as an anesthetic is supplied to the frame member 5, and the medicine discharged from the medicine application hole 15 is applied to the inner wall surface of the narrow hole portion 23.

  The endoscope insertion guide 100 may include a medicine supply means for additionally supplying a medicine from the medicine application hole 15. As the medicine supply means, for example, a syringe (not shown) connected to the frame member 5 for applying medicine can be used. In addition to being necessary for insertion of the endoscope insertion guide 100, the medicine may require additional injection after a predetermined time after insertion when the nasal cavity 21 takes time to expand. Therefore, convenience is enhanced if the additional supply of the medicine is enabled in a state where the diameter is expanded by the air supply. In this case, a medicine supply tube is connected to the frame member 5 outside the ring-shaped fixing member 3 to additionally supply medicine. Moreover, by setting it as such a structure, another kind of chemical | medical agent can also be supplied additionally. For example, the vasoconstrictor may be filled first, the vasoconstrictor may be exuded after insertion of the nasal cavity, and then an anesthetic may be additionally supplied.

  If the cylindrical body 1 is held in an expanded state by the supply of air, as shown in FIG. 5 (d), an endoscope is provided in the central space portion 25 (see FIG. 2) of the inner diameter d 1 of the ring-shaped fixing member 3. 27 insertion portions 29 are inserted.

  In this state, that is, in a state where the endoscope 27 is inserted through the endoscope insertion guide 100, examination, diagnosis, treatment, and the like are performed. When the use of the endoscope 27 is finished, as shown in FIG. 5E, the air of the ring-shaped balloon member 7 is exhausted through the frame member 5, and the tip of the cylindrical body 1 is reduced in diameter. Finally, as shown in FIG. 5 (f), the cylindrical body 1 is extracted from the nasal cavity 21, and the examination, diagnosis, treatment, and the like are completed.

  Therefore, according to the endoscope insertion guide 100 described above, the cylindrical body 1 formed in a bowl shape by the plurality of frame members 5 can be expanded and contracted by supplying and discharging fluid to and from the ring-shaped balloon member 7. The inside of the nasal cavity 21 can be easily and quickly expanded while supplying a drug into the nasal cavity 21 without imposing a burden on the operator or the subject, and can be used as a guide when inserting the endoscope.

Next, another example of the endoscope insertion guide will be described.
FIG. 6A is a side view in a reduced diameter state of an endoscope insertion guide according to another configuration, and FIG. 6B is a side view in the expanded diameter state.
In the endoscope insertion guide 200 according to this configuration example, a stretchable film body 31 made of a soft elastic body such as silicon, latex, or polyethylene is coated on the outer periphery of the cylindrical body 1A. Other configurations are the same as those of the endoscope insertion guide 100. The endoscope insertion guide 200 is housed inward by inserting the film body 31 between the frame members 5 in a reduced diameter state in which the ring-shaped balloon member 7 is deflated. When the ring-shaped balloon member 7 expands and the tip of the cylindrical body 1A expands in diameter, both ends become cylindrical with the same outer diameter D, and the cylindrical body 1A is covered with an outer surface having no wrinkles.

7A is a cross-sectional view taken along line BB in FIG. 6, and FIG. 7B is a cross-sectional view taken along line CC in FIG.
As shown in FIG. 7A, the cylindrical body 1A accommodates the loosened film body 31 in a pleated state between the adjacent frame members 5 and 5, as shown in FIG. Thereby, wrinkles due to the film body 31 do not appear to the outside, and the insertion property at the time of insertion into the nasal cavity 21 in a reduced diameter state is improved. The film body 31 is supported from the inside by the plurality of frame members 5 when the diameter of the cylindrical body 1A is expanded, and follows the circular outer periphery of the ring-shaped fixing members 3 and the ring-shaped balloon members 7 at both ends in the axial direction. It is stretched in a cylindrical shape. Thereby, 1 A of cylinders become the smooth outer surface as a whole, the unevenness | corrugation feeling by the some frame member 5 expressing directly reduces, and the discomfort of a subject is further reduced.

Here, another configuration example of the frame member with respect to the endoscope insertion guides 100 and 200 will be described.
FIG. 8 is a cross-sectional view showing modified examples of the frame member (a) to (d).
Various cross-sectional shapes in the direction orthogonal to the axis of the frame member 5 are conceivable in addition to the pipe shape having the hollow portion 13 at the center which is the basic shape described above. For example, like the frame member 5A shown in FIG. 8A, the strip 33 may be fixed to the outside of the pipe in order to increase the contact area with the inner surface of the nasal cavity 21.
The frame member 5B shown in FIG. 8B has an elliptical shape, so that the contact area with the inner surface of the nasal cavity 21 can be increased without providing the strip 33.

  It is good also as a cross-sectional rectangular shape like the frame member 5C shown in FIG.8 (c). The pipe shape of the frame member 5C is preferably a plate shape rather than a circular shape in order to expand the nasal cavity. However, when the cross-sectional shape is rectangular, it is difficult to bend when inserted into the nasal cavity. Therefore, by further increasing the softness (softness) of the material forming the frame member 5C, the difficulty of bending when inserting the nasal cavity is improved. Thereby, the plate | board surface of the frame member 5C arrange | positioned by the circumferential direction surrounding the axis line G (refer FIG. 1, FIG. 2) of the cylinder 1 corresponds to the radial direction of the cylinder 1 in the plate | board thickness direction. By arranging the cylinder body 1 in such a posture, the plate surface of the frame member 5C comes into surface contact with the inner surface of the nasal cavity 21 when the diameter of the cylinder 1 is expanded, and the contact area between the frame member and the inner surface of the body cavity increases. The increase in the contact area reduces the occurrence of local pressing force, and enables expansion that is less likely to cause pain. In addition, the amount of drug applied to the inner surface of the body cavity can be increased.

  Further, if the cross-sectional shape of the plate member is curved so that the outer side becomes a convex curved surface as in the frame member 5D shown in FIG. Expansion that is unlikely to occur is possible.

Also, the endoscope insertion guide can be configured to have a plurality of ring-shaped balloon members.
FIG. 9 is a side view showing another configuration example of the endoscope insertion guide further provided with a ring-shaped balloon member. In the figure, the same members as those shown in FIG. 1 are denoted by the same reference numerals, and the description thereof is omitted or simplified.
As shown in FIG. 9, the endoscope insertion guide 300 is arranged in the direction of the axis G of the cylindrical body 1 in addition to the ring-shaped balloon member 7 joined to the opposite side of the frame member 5 from the ring-shaped fixing member 3. Intermediate ring-shaped balloon members 7A and 7B are disposed in the middle along the line. The intermediate ring-shaped balloon members 7A and 7B can expand the frame member 5 by expansion due to the supply of fluid and can constrict the frame member 5 by contraction due to the discharge of the fluid, except that the arrangement positions with respect to the frame member 5 are different. Has the same configuration as the ring-shaped balloon member 7.

  The ring-shaped balloon member 7 and the intermediate ring-shaped balloon members 7A and 7B are applied to the frame member 5 by performing supply and discharge of fluid through the same fluid path and performing expansion and contraction operations at the same drive timing. The pressure is equalized. Thereby, the curvature of the frame member 5 at the time of diameter expansion of the cylinder 1 is suppressed. Even if the rigidity of the frame member 5 is suppressed, a sufficient pressing force can be generated against the inner surface of the body cavity, so that the rigidity of the frame member 5 is lowered and the flexibility of the entire endoscope insertion guide is improved. Can do.

  In the above example, the intermediate ring-shaped balloon members 7A and 7B are arranged at two places along the direction of the axis G of the cylindrical body 1. However, the present invention is not limited to this, and at least one intermediate ring-shaped balloon member is used. May be arranged.

  The endoscope insertion guides 100, 200, and 300 are not limited to use for the nasal cavity but can be used for body cavities (such as the large intestine) at other sites.

As described above, the following items are disclosed in this specification.
(1) An endoscope insertion guide that inserts a cylindrical body into a body cavity and expands the body cavity, and then inserts an insertion portion of the endoscope into the cylindrical body to guide the inside of the body cavity,
The cylindrical body includes a ring-shaped fixing member on one end side, a frame member in which a plurality of members are joined along the circumferential direction of the ring-shaped fixing member, and extends in a direction along the axis of the cylindrical body; A ring-shaped balloon member that is joined to the other end opposite to the ring-shaped fixing member, expands the frame member by expansion due to fluid supply, and constricts the frame member by contraction due to fluid discharge; Endoscope insertion guide provided.
According to this endoscope insertion guide, the frame member can be opened and expanded in diameter by supplying fluid to the ring-shaped balloon member, and the frame member can be narrowed and reduced in diameter by discharging fluid.

(2) The endoscope insertion guide according to (1),
An endoscope insertion guide, wherein at least one of the frame members is formed of a hollow pipe, and fluid is supplied to the ring-shaped balloon member through the hollow pipe.
According to this endoscope insertion guide, the frame member can be used to supply / discharge the diameter-expanding fluid to the ring-shaped balloon member provided on the distal end side without newly providing another liquid supply line.

(3) The endoscope insertion guide according to (1) or (2),
An endoscope insertion guide for supplying at least one of the frame members to a body cavity through a hollow pipe having an ejection hole formed along an axial direction.
According to this endoscope insertion guide, the medicine can be applied uniformly over the entire length in the insertion direction and the circumferential direction by using the frame member that is a structural member of the outer cylinder.

(4) The endoscope insertion guide according to any one of (1) to (3),
An endoscope insertion guide, wherein the frame member is a plate-like member in which the radial direction of the cylindrical body is aligned with the plate thickness direction.
According to this endoscope insertion guide, the plate surfaces of a plurality of frame members arranged in the circumferential direction so as to surround the axis of the cylinder are arranged in a posture in which the plate thickness direction coincides with the radial direction of the cylinder. Thus, when the diameter of the cylindrical body is increased, the plate surface of the frame member comes into surface contact with the inner surface of the body cavity, and the contact area between the frame member and the inner surface of the body cavity increases. By increasing the contact area, the generation of local pressing force is reduced, and an expansion that does not easily cause pain is possible. In addition, the amount of drug applied to the inner surface of the body cavity can be increased.

(5) The endoscope insertion guide according to any one of (1) to (4),
At least one intermediate ring-shaped balloon member that expands the frame member by expansion by supply of fluid and constricts the frame member by contraction by discharge of fluid is disposed in the middle of the cylindrical body along the axial direction. Endoscope insertion guide.
According to this endoscope insertion guide, the intermediate ring-shaped balloon member can suppress the warp of the frame member when the diameter of the cylindrical body is increased. Thereby, it can be set as the structure which suppressed the rigidity of the frame member, and the softness | flexibility of the whole endoscope insertion guide can be improved.

(6) The endoscope insertion guide according to any one of (1) to (5),
An endoscope insertion guide in which the body cavity is a nasal cavity.
According to the endoscope insertion guide, the endoscope can be smoothly inserted by expanding the small diameter nasal cavity.

(7) The endoscope insertion guide according to (6),
An endoscope insertion guide, wherein the drug includes an anesthetic or a vasoconstrictor.
According to this endoscope insertion guide, when an anesthetic is applied, pain that tends to occur in the sensitive nasal mucosa is alleviated. When a vasoconstrictor is applied, the nasal cavity can be expanded by vasoconstriction, and bleeding can be suppressed.

(8) The endoscope insertion guide according to any one of (1) to (7),
An endoscope insertion guide in which the fluid is air.
According to this endoscope insertion guide, the atmosphere in the environment such as a treatment room can be easily used by using a gas such as air as the inflow fluid, and the compression by receiving pressure from the inner wall of the nasal cavity is soft. Can be performed, and pain during nasal cavity dilation is less likely to occur.

It is a side view of an endoscope insertion guide for explaining an embodiment of the present invention. It is AA sectional drawing of FIG. (A) is sectional drawing of the axial orthogonal direction vicinity of the ring-shaped balloon member in a diameter-reduced state, (b) is the side view. (A) is sectional drawing of the axial direction orthogonal to the ring-shaped balloon member vicinity in a diameter-expanded state, (b) is the side view. It is nasal cavity sectional drawing which showed the insertion procedure of the endoscope using the cylinder shown in FIG. 1 by (a)-(f). (A) is a side view in the diameter-reduced state of the endoscope insertion guide by another structure, (b) is a side view in the diameter-expanded state. (A) is BB sectional drawing of FIG. 6, (b) is CC sectional drawing of FIG. It is sectional drawing which showed the modification of the frame member to (a)-(d). It is a side view of the endoscope insertion guide of other composition.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Cylindrical body 3 Ring-shaped fixing member 5 Frame member 7 Ring-shaped balloon member 13 Hollow part 15 Hole for medicine application (discharge hole)
21 Nasal cavity (body cavity)
27 Endoscope 29 Insertion section 100, 200, 300 Endoscope insertion guide G Axis of cylinder

Claims (8)

An endoscope insertion guide that inserts a cylindrical body into a body cavity and expands the body cavity and then inserts an insertion portion of the endoscope into the cylindrical body to guide the body cavity,
The cylindrical body is a ring-shaped fixing member on one end side,
A frame member that is joined along a circumferential direction of the ring-shaped fixing member and extends in a direction along the axis of the cylindrical body;
A ring-shaped balloon that is joined to the other end of the frame member opposite to the ring-shaped fixing member, expands the frame member by expansion due to fluid supply, and narrows the frame member by contraction due to fluid discharge. Members,
Endoscope insertion guide equipped with. The endoscope insertion guide according to claim 1,
An endoscope insertion guide, wherein at least one of the frame members is formed of a hollow pipe, and fluid is supplied to the ring-shaped balloon member through the hollow pipe. An endoscope insertion guide according to claim 1 or 2,
An endoscope insertion guide, wherein at least one of the frame members is formed of a hollow pipe having a discharge hole formed along an axial direction, and supplies the medicine into the body cavity through the hollow pipe. The endoscope insertion guide according to any one of claims 1 to 3,
An endoscope insertion guide, wherein the frame member is a plate-like member in which the radial direction of the cylindrical body is aligned with the plate thickness direction. The endoscope insertion guide according to any one of claims 1 to 4,
At least one intermediate ring-shaped balloon member that expands the frame member by expansion by supply of fluid and constricts the frame member by contraction by discharge of fluid is disposed in the middle of the cylindrical body along the axial direction. Endoscope insertion guide. The endoscope insertion guide according to any one of claims 1 to 5,
An endoscope insertion guide in which the body cavity is a nasal cavity. An endoscope insertion guide according to claim 6,
An endoscope insertion guide, wherein the drug includes an anesthetic or a vasoconstrictor. The endoscope insertion guide according to any one of claims 1 to 7,
An endoscope insertion guide in which the fluid is air.

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