JP2008188212A - Medicine application member and medicine application system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a medicine application member and a medicine application system which carry out the anesthetic treatment of the nasal cavity more efficiently compared to conventional members or systems when performing a transnasal endoscopic examination. <P>SOLUTION: The medicine application member 101 has an elongated rod-like substrate 110 made of a flexible material, a balloon 120 arranged on a distal end part 110-1 of the substrate, and a medicine holding part 125 provided on the outer surface 120a of the balloon and holding medicine to be applied to the body cavity. With such a configuration, the medicine application member can apply the medicine to a narrow hole part and a wide hole part of the nasal cavity. In other words, both the narrow hole part and the wide hole part are anesthetized with one medicine application member. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a drug application member and a drug application system including the drug application member. Specifically, the drug application member is, for example, a member that is inserted into the nasal cavity before the transnasal endoscope is inserted into the nasal cavity.

  A method using an endoscope has been generalized as one of inspection methods for the upper digestive tract such as the esophagus and stomach. In the examination, the endoscope is generally inserted into the upper digestive tract through the subject's mouth. On the other hand, in recent years, an ultra-thin endoscope having a tube diameter thinner than that of a conventional endoscope has been developed, and the above-mentioned ultra-thin endoscope is replaced with oral in order to reduce the pain of the subject at the time of examination. In addition, transnasal endoscopy, which is inserted into the upper gastrointestinal tract via the nasal cavity, has also started.

  Anesthesia around the pharynx is performed before oral endoscopy, but also in the above-described nasal endoscopy, it is necessary to anesthetize the nasal cavity of the subject before the examination. On the other hand, in the nasal cavity portion, as shown in FIG. 18, the narrow hole portion 5 having a relatively small passage diameter corresponding to the nasal cavity entrance portion and the wide hole portion 6 having a relatively large passage diameter called the middle nasal cavity are structurally formed. The endoscope inserted from the outer nostril passes through the narrow hole portion 5 and the wide hole portion 6 in this order, and reaches the upper digestive tract through the pharynx. Therefore, it is necessary to anesthetize the narrow hole part 5 and the wide hole part 6.

  In addition, the diameter of an endoscope for transnasal endoscopy is about 6 mm or about 5 mm, which is thinner than that for oral use, but is narrow in the nasal cavity, and suddenly inserting the endoscope into the nasal cavity It is painful for the subject. Therefore, it is possible to reduce the pain of the subject by performing the anesthesia and previously expanding or expanding the inner surface of the nasal cavity.

Currently, as a method of anesthetizing the narrow hole portion 5 and the wide hole portion 6, first, the tip of a flexible small diameter tube 1 having a tube diameter of about 4 mm as shown in FIG. The narrow hole portion 5 is inserted, and then an anesthetic such as xylocaine is sprayed from the tip of the small diameter tube 1 to the narrow hole portion 5 to anesthetize the narrow hole portion 5.
After the narrow hole portion is anesthetized, the distal end of a flexible large-diameter tube 2 having a tube diameter of about 6 mm is passed through the narrow hole portion 5 to the wide hole portion 6 as shown in FIG. Then, the anesthetic is sprayed from the tip of the large-diameter tube 2 to the wide hole portion 6 to perform anesthesia of the wide hole portion 6.
After anesthesia of both the narrow hole part 5 and the wide hole part 6 is completed as described above, an endoscope is inserted into the nasal cavity and a transnasal endoscopy is started.
The 71st Annual Meeting of the Japanese Gastroenterological Endoscopy Society (H18.5.14-16 Tokyo) Vol.48 (Suppl.1) 2006, MVS1-11 (Transnasal upper gastrointestinal endoscopy-to a simple and safe pretreatment method Innovations and improvements)

As described above, the anesthesia method for the nasal cavity portion when performing a transnasal endoscopy currently performs anesthesia operation twice using the small-diameter tube 1 and the large-diameter tube 2. Is troublesome in terms of time and work, and also uncomfortable for the subject.
Further, as described above, the small-diameter tube 1 and the large-diameter tube 2 are merely for anesthetizing the nasal cavity portion and cannot expand and expand the inner surface of the nasal cavity. Therefore, although anesthetized, the subject will feel uncomfortable when a nasal endoscope having the same diameter as or thicker than the small diameter tube 1 and the large diameter tube 2 is inserted. Also from this point, the method using the small-diameter tube 1 and the large-diameter tube 2 described above is very uncomfortable for the subject.

  The present invention has been made to solve such problems. For example, when performing a nasal endoscopy, anesthesia work of the nasal cavity portion can be performed more efficiently than in the past, and in general, An object of the present invention is to provide a drug application member and a drug application system capable of efficiently performing a drug application operation on a body cavity as compared to conventional methods and capable of reducing pain to a subject. And

In order to achieve the above object, the present invention is configured as follows.
That is, the drug application member according to the first aspect of the present invention is a base material made of a flexible material having an elongated round bar shape, and the base material is moved into the body cavity from the front end to the rear end side. A base material that advances in the order of the narrow hole part and the wide hole part existing in the body cavity,
A gas passage extending along the substrate from the rear end;
It is provided on the entire circumference of the outer surface of the base material, communicates with the gas passage, expands when gas is supplied through the gas passage, and passes the narrow hole portion and the wide hole portion in the radial direction of the base material. A cylindrical balloon that expands and expands and assists in drug application;
A drug holding part that is provided on the outer surface of the balloon and contains the drug applied to the body cavity;
The narrow hole part and the wide hole part are expanded and the medicine is applied.

The balloon is provided at a tip portion of the base material, and is inflated when the tip portion is positioned in the narrow hole portion and the wide hole portion, respectively, and the expansion of the narrow hole portion and the wide hole portion, As well as assisting in drug application,
The drug holding part is provided at the distal end portion with a thickness smaller than the narrow hole part in a state where the balloon is not inflated, and when the drug holding part passes through the narrow hole part, It is also possible to apply the drug to the narrow hole part by expansion and to apply the drug to the wide hole part by expansion of the balloon when positioned in the wide hole part.

The balloon is provided continuously from the tip portion to the middle portion of the base material, and is inflated when the tip portion is located in the wide hole portion to expand the wide hole portion, and the middle portion is Expanding the narrow hole part that is located, and assisting drug application,
The drug holding part has a thickness that allows contact with the inner surface of the narrow hole part in a state where the balloon is not inflated, and is provided only at the distal end portion of the base material. The medicine may be applied to the narrow hole portion when passing through the portion, and the medicine may also be applied to the wide hole portion by inflation of the balloon when the medicine holding portion is located in the wide hole portion. it can.

  Further, the medicine holding part can be configured to be continuously provided not only from the tip part but also from the tip part to the intermediate part.

A second gas passage extending along the base material from the rear end;
Provided on the entire circumference of the outer surface of the base material in the intermediate portion of the base material located in the narrow hole portion when the tip portion is located in the wide hole portion, communicated with the second gas passage and the intermediate portion When the portion is located in the narrow hole portion, the gas is supplied through the second gas passage to expand the narrow hole portion in the radial direction of the base material and to support the drug application. With balloons,
It is provided on the outer surface of the narrow hole balloon, contains a drug applied to the narrow hole part by the expansion of the narrow hole balloon, and is smaller than the narrow hole part without the expansion of the narrow hole balloon. It can also comprise so that the chemical | medical agent holding part for narrow holes which has thickness may be further provided.

  Further, it may be configured to further include a drug passage that extends from the rear end along the base material to the drug holding part and supplies a drug to be added to the drug holding part.

  Also, a drug passage that extends from the rear end along the base material to the drug holding part and the narrow hole drug holding part and supplies a drug to be added to the drug holding part and the narrow hole drug holding part. Can be further provided.

  Moreover, the said medicine holding | maintenance part can also be comprised so that it may consist of a fiber material which has a liquid absorptivity.

  Further, the drug holding part and the narrow hole drug holding part may be formed of a fiber material having liquid absorbency.

  In addition, the medicine holding part may be configured to have a plurality of recesses that are formed on the outer surface of the balloon and store the medicine.

  Further, the medicine holding part and the narrow hole medicine holding part may be configured to have a plurality of recesses formed on the outer surfaces of the balloon and the narrow hole balloon for containing the medicine.

  The body cavity is a nasal cavity, the drug is an anesthetic, and the balloon expands the narrow hole part and the wide hole part to a degree sufficient for a transnasal endoscope to pass through the nasal cavity. It can also be configured.

  The body cavity is a nasal cavity, the drug is an anesthetic, and the balloon expands the narrow hole part and the wide hole part to a degree sufficient for a transnasal endoscope to pass through the nasal cavity, The narrow hole balloon may be configured to expand the narrow hole portion to a degree sufficient for the transnasal endoscope to pass through the nasal cavity.

  And a second drug passage that extends from the rear end along the base material to the tip and that supplies a second drug that provides an action different from the drug to the body cavity from the tip to the body cavity. It can also be configured.

Furthermore, the drug application system according to the second aspect of the present invention includes the drug application member according to the first aspect described above,
A gas supply device that is attached to a gas passage through a valve on the rear end side of the substrate and supplies gas to the balloon;
It is provided with.

  In the second aspect, when the drug application member has a second gas passage, the gas supply device is further attached to the second gas passage via a valve to supply gas to the narrow hole balloon. It can also be configured as follows.

  The said 2nd aspect WHEREIN: When the said chemical | medical agent application member has a chemical | medical agent channel | path, it can also comprise so that the chemical | medical agent supply instrument which is attached to the said chemical | medical agent channel | path and supplies a chemical | medical agent holding part may be further provided.

  According to the drug application member in the first aspect of the present invention and the drug application system in the second aspect, the base is provided with a balloon that expands the narrow hole part and the wide hole part and assists the drug application, By providing a drug holding part containing a drug to be applied to a body cavity on the outer surface of the balloon, both the narrow hole part and the wide hole part can be expanded and applied with a single member. it can. Therefore, it is possible to more efficiently carry out the drug application operation to the body cavity than in the past, and in the subject by expanding the narrow hole part and the wide hole part in advance before the endoscopic examination. However, there is an advantage that unpleasant time is shortened and pain is reduced.

  The drug holding part may have a thickness that allows contact with the inner surface of the narrow hole part, or may be thinner than the inner surface of the narrow hole part. When the drug holding part is thinner than the inner surface of the narrow hole part, the balloon and the drug holding part are provided at the tip part of the base material of the drug application member, and when the tip part is arranged in the narrow hole part, By inflating the balloon, the drug holding part can be brought into contact with the inner surface of the narrow hole part, and the drug can be applied to the inner surface of the narrow hole part. Further, the narrow hole can be expanded by inflating the balloon. These operations are performed in the same manner when the medicine holding part is located in the wide hole part. In this form, since the diameter of the base material is smaller than that of the narrow hole portion, it is possible to further reduce pain in the subject when inserting the drug application member into the body cavity, and expansion of the narrow hole portion and the wide hole portion. In addition, the drug application to the narrow hole part and the wide hole part can be performed with one drug application member.

  On the other hand, when the drug holding part has a thickness that allows contact with the inner surface of the narrow hole part, for example, a balloon is continuously provided from the tip part to an intermediate part of the base material, It is possible to adopt a form provided only at the tip portion. When the medicine holding part provided at the tip portion is positioned in the narrow hole part, the medicine holding part can contact the inner surface of the narrow hole part to anesthetize the narrow hole part. Further, when the drug holding part is positioned in the wide hole part, the balloon can be inflated to apply the drug to the wide hole part and to expand the wide hole part, and to expand the narrow hole part. . Thus, according to the said structure, the structure of the member for chemical | medical agent application can be simplified.

  Further, in the above-described configuration in which the balloon is continuously provided from the distal end portion to the intermediate portion of the base material, a structure in which the medicine holding portion is continuously provided from the distal end portion to the intermediate portion of the base material can also be adopted. According to this configuration, after the medicine holding portion at the distal end portion applies the medicine to the inner surface of the narrow hole portion, the distal end portion further advances to the wide hole portion, and the medicine is applied to the wide hole portion by the inflation of the balloon. The drug holding part provided in the intermediate part of the base material can apply the drug in contact with the inner surface of the narrow hole part, and can maintain the anesthetic state of the narrow hole part. Since the narrow hole portion is a portion where the endoscope comes into contact first, maintaining the anesthesia state of the narrow hole portion contributes to reducing the pain of the subject. In addition, since the drug holding portion has a thickness that allows contact with the inner surface of the narrow hole portion, and the balloon is continuously provided from the distal end portion to the intermediate portion, the balloon is inflated once. Therefore, the operation is simplified, the treatment time is shortened, and the discomfort for the subject is reduced.

Further, the thickness of the drug solution holding part with respect to the narrow hole part is not limited, but preferably the drug holding part is set at two locations of the base part and the intermediate part with a small thickness with respect to the narrow hole part. In addition to reducing the pain in the subject when the drug application member is inserted into the body cavity by providing a narrow hole balloon that is arranged separately and corresponding to the narrow hole drug holding portion in the intermediate portion. The narrow hole drug holding portion can contact the inner surface of the narrow hole portion by the expansion of the narrow hole balloon and apply the drug. Therefore, a chemical | medical agent can be continuously apply | coated also to a narrow hole part.
In addition, by disposing the medicine holding part in two locations, that is, the tip part and the intermediate part of the base material, it is possible to reduce the installation area of the medicine holding part and to reduce the manufacturing cost of the medicine application member.

  In addition, by providing the drug passage, it becomes possible to replenish the drug in accordance with at least one of the drug holding part and the narrow hole drug holding part.

  In addition, by providing the second medicine passage, it becomes possible to spray the second medicine having an action different from the above medicine into the body cavity.

  In addition, the drug holding part and the narrow hole drug holding part can be manufactured easily and at low cost by manufacturing the liquid holding fiber material. .

  In addition, by configuring the drug holding part and the narrow hole drug holding part to have a recess, depending on the type of drug, the drug holding performance can be maintained better than in the case of using the fiber material.

A drug application member and a drug application system including the drug application member according to an embodiment of the present invention will be described below with reference to the drawings. In each figure, the same or similar components are denoted by the same reference numerals. Further, in all the drawings, each member is schematically illustrated so that the structure thereof can be explained, and the size and shape of each member illustrated are different from actual ones. Further, the present invention is not limited to the illustrated structure, and modifications easily conceived by those skilled in the art based on the illustrated structure are included in the scope of the present invention.
Further, in the present embodiment, the case where the drug application member and the drug application system are used for anesthesia of the nasal cavity portion when performing a transnasal endoscopy is taken as an example. However, the drug application member and the drug application system are not limited to this, and a narrow hole part and a wide hole part exist in the body cavity, and the drug is applied in the order of the narrow hole part and the wide hole part. In addition, the present invention is applicable to cases where it is necessary to expand and expand the narrow hole portion and the wide hole portion.

First, the drug application member will be described.
FIG. 1 shows an example of a drug application member. The drug application member 101 shown in FIG. 1 includes a base material 110, a gas passage 115, a balloon 120, and a drug holding part 125. The balloon 120 and the drug holding part 125 are attached to the distal end portion 110-1 of the base material 110. It is the structure which provided. Further, in the drug application member 101, the drug holding part 125 having the largest diameter in the drug application member 101 is made thinner than the space of the narrow hole part 5.

  The base 110 is made of a flexible material in the shape of an elongated round bar, and is present in the nasal cavity by inserting the base 110 into the nasal cavity from the front end 110a toward the rear end 110b, as shown in FIG. The process proceeds in the order of the narrow hole portion 5 and the wide hole portion 6. As the material of the base material 110, since it is inserted into the nasal cavity, a material having flexibility and waist is preferable. For example, an elastic member such as natural rubber, silicone rubber, polyvinyl chloride, or the like can be used. It is. In consideration of allergies and the like of the subject, the material is optimally silicone rubber. Further, when the drug application member 101 is used to perform anesthesia of the nasal cavity portion as in this embodiment, the length of the base material 110 is about 15 cm.

  The gas passage 115 is a passage extending along the base 110 from the rear end 110b of the base 110, and is a passage for supplying a gas for inflating the balloon 120 described below. In the present embodiment, the gas passage 115 is formed in the substrate 110 as illustrated. However, the shape and form of the passage are not limited to the shape and form shown in the figure. For example, the capillary tube is fixed along the outer surface 110c of the base 110 and separated from the outer surface 110c. May take the form of extending separately.

  The balloon 120 can be provided on the entire circumference of the outer surface 110c of the substrate 110. In this example, the balloon 120 is formed in a cylindrical shape on the entire circumference of the outer surface 110c of the tip portion 110-1 of the substrate 110 and on the outer surface 110c. On the other hand, it is gastight and expandable. That is, the member that forms the balloon 120 is, for example, a thin cylindrical member having an inner diameter that is substantially the same as the outer diameter of the outer surface 110c of the base 110, and at both ends in the longitudinal direction of the cylindrical member. The substrate 110 is bonded to the outer surface 110c of the tip portion 110-1 so as to be gastight. The method for forming the balloon 120 is not limited to this. For example, the outer surface 110c may be partially provided instead of the entire circumference. In addition, the balloon 120 communicates with the gas passage 115 at, for example, the central portion of the balloon 120 excluding the both end portions. Therefore, when the distal end portion 110-1 is located in the narrow hole portion 5 and the wide hole portion 6, gas is supplied to the balloon 120 through the gas passage 115, so that the balloon 120, specifically, the bonded portion of the balloon 120 is provided. The non-adhesive portion of the balloon excluding the both end portions expands with respect to the outer surface 110c of the tip portion 110-1 of the base material 110 and pushes the narrow hole portion 5 and the wide hole portion 6 in the radial direction of the base material 110. Expand and expand, and assist with drug application. In FIG. 1, the inflated state of the balloon 120 is shown by a two-dot chain line. Of course, the expanded shape is not limited to the elongated shape as shown in the figure. The shape of the balloon 120 in the inflated state is preferably a shape corresponding to the shape of the body cavity portion to which the drug is applied. The expansion amount of the balloon 120 is adjusted in accordance with the thickness of the base 110 and the size of the body cavity where the balloon 120 acts, but the diameter of the nasal endoscope is about 6 mm. The narrow hole portion 5 preferably expands to a diameter exceeding 6 mm, for example, to such an extent that the narrow hole portion 5 is expanded to a diameter of about twice as small. Alternatively, the inflation amount of the balloon 120 may be an amount that can be inflated to about twice the diameter of the balloon 120 in a non-inflated state.

In addition, the length of the balloon 120 portion along the axial direction of the base 110 corresponds to the length of the body cavity portion to which the drug is applied. For example, when the drug application member 101 is used to perform anesthesia of the nasal cavity portion as in this embodiment, the length of the balloon 120 portion is about 6 cm.
The gas supplied to the balloon 120 is generally air, but other gases such as oxygen and nitrogen that can be prepared in a medical facility and are not harmful to the human body or liquid can be used. As the material of the balloon 120, like the base material 110, an elastic member such as natural rubber, silicone rubber, or the like is preferable, and silicone rubber is preferable in consideration of allergies to the subject. By using silicone rubber as the material for the balloon 120, the silicone rubber itself has low stretchability, so that a desired expanded shape can be obtained relatively easily, and the adjustment of the expansion amount is facilitated. The material of the balloon 120 need not be a material having elasticity and stretchability, and a plastic material having flexibility can be used together with the base material 110. Such a plastic material is preferable in terms of excellent moldability.

  The drug holding part 125 is a part that is attached to the outer surface 120a of the balloon 120 so as not to fall off with an adhesive or the like, and contains and holds the drug to be applied to the body cavity. For example, gauze or absorbent cotton. The drug is a drug that can be held in the drug holding unit 125 in a liquid or semi-fluid state, and in the case of this embodiment, is an anesthetic such as xylocaine. Note that a lubricant such as jelly is applied to the outer surface of the drug application member 101 in order to smooth the insertion of the drug application member 101 into the body cavity and reduce pain in the subject. Accordingly, as the drug, in the case of a drug or anesthetic containing the lubricant, for example, xylocaine jelly (trade name) is preferable.

  In addition, the medicine holding part 125 is not limited to the fiber material having liquid absorbency as described above, and may have a structure capable of holding the medicine. For example, as shown in FIG. 10, the outer surface 120 a of the balloon 120 or the outer surface 110 c of the base 110 may be formed and may have a plurality of recesses 129-1 for storing the medicine. Moreover, as shown in FIG. 11, you may form the recessed part 129-1 by forming several convex part 129-2 in the outer surface 120a of the balloon 120, or the outer surface 110c of the base material 110. FIG.

  In addition, the arrangement | positioning method of the recessed part 129-1 in the outer surface 120a or the outer surface 110c of the base material 110 is not specified, is regularly or irregularly arranged, and the axial direction of the base material 110 May be formed along the circumferential direction of the substrate 110.

  The outer diameters of the base 110 and the drug holding part 125 are designed according to the narrow hole part and the wide hole part of the body cavity in which the drug application member 101 is used. In the case of the drug application member 101 of this embodiment, the balloon 120 is inflated because the hole diameter is about 4 mm at the narrow hole portion 5 of the nasal cavity and the hole diameter is about 6 mm at the wide portion of the wide hole portion 6. In the uncontracted state, as described above, the outer diameter of the drug holding portion 125 having the largest diameter is less than about 4 mm, for example, about 3 mm, and the balloon 120 is inflated, and the outer diameter of the drug holding portion 125 is Each dimension of the base material 110, the balloon 120, and the medicine holding part 125 is determined so as to be about 6 mm. In particular, the balloon 120 needs to be inflatable to achieve the function of expanding the narrow hole portion 5 and the wide hole portion 6, but if it is inflated excessively, it will cause pain to the subject, so that it is more than necessary. Management of shape, material, dimensions, etc. is important so as not to expand.

  1 and FIGS. 2 to 9 and FIGS. 12 to 17 described below, the tip 110a of the base 110 and the ends of the balloons 120 and 122 adjacent to the tip 110a are slightly separated from each other. In fact, they are close to each other.

  As shown in FIG. 12, the drug application member 101 configured as described above has a gas supply device 160 attached to the gas passage 115 via the valve 150 on the rear end 110 b side of the substrate 110. A drug application system 170 is configured. The gas supply device 160 is a device that supplies gas to the balloon 120 via the gas passage 115 and inflates the balloon 120. For example, a syringe can be used as shown in the drawing. The valve 150 maintains the inflated state of the balloon 120 supplied with gas, while allowing the balloon 120 to be exhausted when the drug application member 101 is removed from the body cavity.

In the present embodiment, a method for applying a drug and expanding a body cavity using the drug application member 101 configured as described above will be described below.
First, a doctor or a nurse includes the drug holding unit 125 in an anesthetic to cause the drug holding unit 125 to contain and hold the anesthetic. In addition, a lubricant is applied to the outer surface 110 c of the base material 110 including the drug holding part 125.
Next, the distal end 110a of the drug application member 101 is inserted into the outer nostril on one side of the subject, and the distal end portion 110-1, that is, the drug holding portion 125 of the drug application member 101 is positioned in the narrow hole portion 5 in the nasal cavity. The base material 110 is advanced to such an extent. As described above, in the drug application member 101, the diameter of the drug holding part 125 is made smaller than that of the narrow hole part 5, so that anesthesia can be effectively performed even if the drug holding part 125 is positioned in the narrow hole part 5. The medicine is not applied to the narrow hole portion 5. In addition, the narrow hole portion 5 needs to be expanded and expanded. Therefore, when the medicine holding part 125 is positioned in the narrow hole part 5, gas is supplied to the balloon 120 using the gas supply instrument 160, the narrow hole part 5 is expanded and expanded in the radial direction of the base material 110, and The balloon 120 is inflated to such an extent that the drug application is assisted. Therefore, the drug holding part 125 contacts and presses the inner surface of the narrow hole part 5, and the anesthetic contained in the drug holding part 125 is applied to the narrow hole part 5 and acts to anesthetize the narrow hole part 5.

  After the narrow hole portion 5 is anesthetized, the valve 150 and the gas supply device 160 are operated to once evacuate the gas from the balloon 120 and deflate the balloon 120. The balloon 120 may be inflated without being deflated. Thereafter, the doctor or nurse further advances the substrate 110 to such an extent that the distal end portion 110-1 of the drug application member 101 is positioned in the wide hole portion 6 in the nasal cavity. Then, again, for example, air is supplied to the gas passage 115 via the valve 150 with the gas supply device 160, and the balloon 120 is expanded to such an extent that the drug holding part 125 contacts the wide hole part 6 and expands the wide hole part 6. Inflate. Due to the expansion of the balloon 120, the drug holding part 125 comes into contact with the wide hole part 6, and the anesthetic contained in the drug holding part 125 acts on the wide hole part 6 to anesthetize the wide hole part 6. At the same time, the wide hole portion 6 is expanded by the expansion of the balloon 120.

  As described above, since the drug holding part 125 is first in contact with the narrow hole part 5, the anesthetic contained in the drug holding part 125 is slightly reduced, but the wide hole part 6 The material, length, thickness, and the like of the drug holding unit 125 are set so that a sufficient amount for anesthesia is secured.

  After the wide hole portion 6 is anesthetized, the doctor or nurse removes the gas supply device 160 and operates the valve 150 to evacuate the balloon 120 and contract the balloon 120. Thereafter, the doctor or nurse removes the drug application member 101 from the nasal cavity. In this way, the anesthesia operation and the expansion operation in the nasal cavity are completed. And it moves to transnasal endoscopy.

  As described above, according to the drug application member 101 of the present embodiment, both the narrow hole portion 5 and the wide hole portion 6 can be anesthetized with one member, and anesthesia work for the nasal cavity portion has been conventionally performed. Compared with this, it can be carried out more efficiently and the pain in the subject can be reduced. Furthermore, since the narrow hole part 5 and the wide hole part 6 are expanded in advance by the drug application member 101 before the endoscopy, it also leads to a reduction in unpleasant time and pain in the subject. There are benefits. In addition, since the thickness of the drug application member is smaller than the hole diameter of the narrow hole portion 5, the subject is less uncomfortable when inserting a foreign object into the nasal cavity, and the pain in the subject can be reduced.

In the above-described embodiment, as explained, in the contracted state where the balloon 120 is not inflated, the base 110, the balloon 120, and the medicine are held so that the medicine holding part 125 is smaller than the space of the narrow hole part 5. Each dimension of the part 125 was defined. However, the present invention is not limited to such a configuration, and the drug holding portion 125 has a thickness that allows contact with the inner surface of the narrow hole portion 5 in a contracted state where the balloon 120 is not inflated. The size of the balloon 120 can also be determined.
In such a configuration, although it is necessary to inflate the balloon 120 for the expansion operation of the narrow hole portion 5, when the medicine holding portion 125 is located in the narrow hole portion 5, the inner surface of the narrow hole portion 5 is contacted, The anesthetic contained in the medicine holding part 125 is applied to the narrow hole part 5 and acts, so that the narrow hole part 5 can be anesthetized.

Further, as a modification of the above-described drug application member 101, a drug application member 102 shown in FIG. 2 may be configured. Compared with the drug application member 101, the drug application member 102 is provided with a balloon continuously from the tip portion 110-1 of the base material 110 to the intermediate portion 110-2 of the base material 110 on the entire circumference of the base material 110. Furthermore, it differs in that the medicine holding part is provided continuously from the tip part 110-1 to the intermediate part 110-2 on the entire circumference of the outer surface of such a balloon. The balloon in the drug application member 102 provided in this way is denoted by reference numeral 122, and the drug holding portion provided on the outer surface 122 a of the balloon 122 is denoted by reference numeral 126.
In addition, since the drug application member 102 has a configuration in which the balloon 122 is continuously provided from the distal end portion 110-1 to the intermediate portion 110-2, the balloon portion is positioned when the distal end portion 110-1 is positioned in the narrow hole portion 5. Since many of 122 exist outside the nasal cavity, the balloon 122 cannot be inflated. Therefore, when the distal end portion 110-1 is positioned in the narrow hole portion 5, it is necessary to anesthetize the narrow hole portion 5. Therefore, in the drug application member 102, the drug holding portion 126 is the inner surface of the narrow hole portion 5. It is produced with the thickness which can be touched. In addition, the materials used for the balloon 122 and the drug holding unit 126 and the modifications shown in FIGS. 10 and 11 can be applied without changing from the case of the drug holding unit 125. Further, the other components of the drug application member 102 are the same as the drug application member 101. The intermediate portion 110-2 is a portion located in the narrow hole portion 5 when the medicine holding portion 126 a located in the distal end portion 110-1 of the drug application member 102 is disposed in the wide hole portion 6. .
As an example of the drug application member 102 shown in FIG. 2, the total length is about 15 cm, and the balloon 122 and the drug holding part 126 have a length of about 10 cm.

  In the drug application member 102 configured as described above, the drug application member 102 is inserted into the nasal cavity, the tip portion 110-1 is positioned in the narrow hole portion 5, and the drug holding portion 126a of the tip portion 110-1 is changed to the narrow hole portion 5. The medicine holding part 126a is retained in the narrow hole part 5 until anesthesia starts to work. At this time, since the drug holding part 126 is made with a thickness that can contact the inner surface of the narrow hole part 5, the drug holding part 126a contacts the inner surface of the narrow hole part 5, and the drug holding part 126a. Can be applied to the narrow hole part 5 and act to anesthetize the narrow hole part 5. After the narrow hole portion 5 is anesthetized, the drug application member 102 is further inserted so that the drug holding portion 126a is positioned in the wide hole portion 6, and when the drug holding portion 126a is positioned in the wide hole portion 6, The balloon 122 is inflated. Due to the expansion of the balloon 122, the drug holding portion 126a comes into contact with the wide hole portion 6, an anesthetic is applied, and the wide hole portion 6 is anesthetized. Further, due to the expansion of the balloon 122, both the narrow hole portion 5 and the wide hole portion 6 are pushed and expanded.

In such a drug application member 102, similarly to the drug application member 101 described above, the narrow hole portion 5 and the wide hole portion 6 can be expanded in advance, and the narrow hole portion 5 and the wide hole portion 6 can be expanded. Can be anesthetized.
Further, in the drug application member 101, the narrow hole part 5 was anesthetized by the drug holding part 125 only when the drug holding part 125 was arranged in the narrow hole part 5. On the other hand, in the drug application member 102, the drug holding part 126 b in the intermediate part 110-2 is a narrow hole even when the drug holding part 126 a located at the tip part 110-1 is arranged in the wide hole part 6. The part 5 is in contact with the inner surface. Therefore, compared with the drug application member 101, the drug application member 102 can apply the drug, here anesthetic, to the narrow hole portion 5 more efficiently, effectively, and continuously.
Further, in the drug application member 102, the balloon is inflated once compared to the drug application member 101. Therefore, the operation is simplified, the treatment time is shortened, and the discomfort for the subject is reduced. There is an effect that.

  Furthermore, as a modification of the above-described drug application member 102, a drug application member 103 shown in FIG. 3 may be configured. As described above, in the drug application member 102, the drug holding part 126 also corresponds to the balloon 122 provided continuously from the tip part 110-1 to the intermediate part 110-2. 2 were continuously provided. In contrast, the drug application member 103 is different from the drug application member 102 in that the drug holding member 125 is provided only at the distal end portion 110-1. Other configurations of the drug application member 103 are the same as the configurations of the drug application member 102.

The drug application member 103 configured in this way is also expanded and anesthetized in the same manner as the drug application member 102.
In the drug application member 103, since the drug holding portion 125 is provided only at the distal end portion 110-1, an anesthetic action is not performed on the narrow hole portion 5 when the drug holding portion 125 is positioned in the wide hole portion 6. However, since the length of the medicine holding part is short, the cost can be reduced.

  Furthermore, as a modification of the drug application member 101, a drug application member 104 shown in FIG. 4 may be configured. In the drug application member 101, the balloon 120 and the drug holding portion 125 are provided only at the distal end portion 110-1. However, in the drug application member 104, the balloon and the intermediate portion 110-2 are also added to the balloon and the drug holding portion 125. A medicine holding part is provided. Note that the balloon provided in the intermediate portion 110-2 is named as the narrow hole balloon 121, and the drug holding portion provided on the outer surface of the narrow hole balloon 121 is named as the narrow hole drug holding portion 128.

  By adopting such a configuration, the balloon 120 of the distal end portion 110-1 is inflated and the narrow hole portion 5 can be expanded and anesthetized by the drug holding portion 125. Therefore, the distal end portion 110-1 of the drug applying member 104 is used. The thickness of the drug holding part 125 provided in the narrow hole and the drug holding part 128 for narrow holes provided in the intermediate part 110-2 is smaller than that of the narrow hole part 5, and the base material 110 is also prepared with a thickness corresponding thereto. be able to. However, the present invention is not limited to this, and the thicknesses of the drug holding part 125 and the narrow hole drug holding part 128 may be manufactured so as to be in contact with the narrow hole part 5.

  Similar to the drug application member 101, the distal end portion 110-1 of the drug application member 104 is provided with a cylindrical drug holding portion 125 on the entire outer surface 120 a of the balloon 120. Further, a narrow hole balloon 121 is also formed in the middle portion 110-2 of the drug application member 104 in a cylindrical shape around the outer surface 110c of the base 110 and in a gas-tight manner with respect to the outer surface 110c. Provided. The narrow hole balloon 121 is made of the same material and shape as the balloon 120, and is the same as the balloon 120 described above in terms of operation, function, and the like. In order to inflate the narrow hole balloon 121, a second gas passage 116 extending along the base 110 from the rear end 110b of the base 110 is provided. In the present embodiment, as shown in the figure, the second gas passage 116 is formed in the substrate 110, but the installation form can take various forms, similar to the gas passage 115 described above.

The narrow hole drug holding portion 128 is attached to the outer surface 121a of the narrow hole balloon 121 so as not to fall off with an adhesive or the like. The narrow hole drug holding portion 128 is made of the same material and form as the above-described drug holding portion 125 and has the same function. 10 and 11 can also be applied to the narrow hole drug holding portion 128.
Further, the intermediate portion 110-2 of the drug application member 104 is formed into the narrow hole portion 5 when the drug holding portion 125 located at the distal end portion 110-1 of the drug application member 104 is disposed in the wide hole portion 6. It is a part to be located.

  As shown in FIG. 13, the drug application member 104 configured in this manner has a gas supply device 160 attached to the gas passage 115 via the valve 150 on the rear end 110 b side of the base 110. A gas supply device 161 is attached to the two gas passages 116 via a valve 151 to constitute a medicine application system 171. The gas supply device 161 is a device that supplies gas to the narrow hole balloon 121 via the second gas passage 116 to inflate the narrow hole balloon 121. For example, a syringe can be used as illustrated. The valve 151 maintains the inflated state of the balloon 121 to which gas is supplied, while allowing the balloon 121 to be exhausted when the drug application member 104 is removed from the body cavity.

The drug application member 104 configured as described above is used as follows. Note that, as described above, the drug holding portion 125 disposed at the distal end portion 110-1 of the drug application member 104, the narrow hole drug holding portion 128 disposed at the intermediate portion 110-2, and the thick base material 110. The diameter is smaller than the hole diameter of the narrow hole portion 5.
When the drug holding part 125 arranged at the distal end portion 110-1 of the drug application member 104 is arranged in the narrow hole part 5, the balloon 120 is inflated until the drug holding part 125 contacts the inner surface of the narrow hole part 5, Anesthesia of the narrow hole 5 is performed. Further, simultaneously with or after the anesthetic operation, the balloon 120 is inflated to the extent that the narrow hole 5 is expanded, and the narrow hole 5 is expanded. Then, in a state where the balloon 120 is inflated or contracted, the medicine holding part 125 is disposed in the wide hole part 6 and the balloon 120 is inflated again until the medicine holding part 125 contacts the inner surface of the wide hole part 6. Anesthesia of the wide hole portion 6 is performed. At the same time as or after the anesthetic operation of the wide hole portion 6, the balloon 120 is inflated to the extent that the wide hole portion 6 is expanded, and the wide hole portion 6 is expanded.
At this time, the narrow hole drug holding portion 128 in the intermediate portion 110-2 is located in the narrow hole portion 5. Therefore, gas is supplied through the second gas passage 116, and the narrow hole balloon 121 is inflated to such an extent that the narrow hole drug holding section 128 contacts the inner surface of the narrow hole section 5 and further expands the narrow hole section 5. The narrow hole part 5 is anesthetized again and the narrow hole part 5 is expanded again.

As described above, in the drug application member 104, the drug holding portion 125 of the tip portion 110-1, the narrow hole drug holding portion 128 of the intermediate portion 110-2, and the thickness of the base 110 are set to the narrow hole portion 5. It is made smaller than the hole diameter. Therefore, since the pain given to the subject is small, the anesthesia operation of the narrow hole portion 5 by the medicine holding portion 125 in the distal end portion 110-1 of the medicine application member 104 is omitted instead of the above-described usage method, and the medicine is suddenly held. The portion 125 is disposed in the wide hole portion 6, the narrow hole drug holding portion 128 is disposed in the narrow hole portion 5, and both the balloon 120 and the narrow hole balloon 121 are inflated, so that the wide hole portion 6 and the narrow hole portion 5 are inflated. May be anesthetized and expanded at the same time.
When this method of use is adopted, the drug application system has a configuration in which the gas supply sides of the valves 150 and 151 are merged and the balloon 120 and the narrow hole balloon 121 are inflated together with one gas supply device 160. Can be taken.

  As described above, the drug application member 104 has a configuration in which the narrow hole balloon 121 is provided in the intermediate portion 110-2 and inflated so that the narrow hole drug holding part 128 can contact the inner surface of the narrow hole part 5. Thus, the thickness of the drug holding portion 125 of the tip portion 110-1, the drug holding portion 128 for the narrow hole of the intermediate portion 110-2, and the base material 110 can be made smaller than the hole diameter of the narrow hole portion 5. It becomes possible. Therefore, the subject feels less uncomfortable when inserting a foreign object into the nasal cavity, and can reduce pain in the subject.

  Furthermore, as a modification of the drug application member 101, a drug application member 191 shown in FIG. 16 may be configured. The drug application member 191 has a configuration in which a drug holding portion is provided continuously over the entire circumference from the outer surface 120 a of the balloon 120 to the outer surface 110 c of the intermediate portion 110-2 of the base material 110 with respect to the drug application member 101. Have Further, when the distal end portion 110-1 is positioned in the wide hole portion 6, the medicine holding portion present in the intermediate portion 110-2 needs to contact the inner surface of the narrow hole portion 5, and therefore the distal end portion 110-1 To the intermediate portion 110-2 is manufactured with a thickness that allows contact with the narrow hole portion 5. In addition, the code | symbol 193 is attached | subjected about the chemical | medical agent holding | maintenance part in the member 191 for chemical | medical agent application provided in this way. Further, in the medicine holding portion 193, a portion corresponding to the tip portion 110-1 is referred to as a medicine holding portion 193a, and a portion corresponding to the intermediate portion 110-2 is referred to as a medicine holding portion 193b. Moreover, the material used for the chemical | medical agent holding | maintenance part 193 and the modification shown in FIG. 10, FIG. 11 are applicable similarly to the case in each above-mentioned modification. Further, the other components of the drug application member 191 are not different from those of the drug application member 101.

The drug application member 191 configured as described above is used as follows. That is, as in the case of each of the above-described modifications, after an anesthetic or the like is applied to the drug holding part 193, the drug application member 191 is inserted into the nasal cavity, and the drug holding part 193a is positioned in the narrow hole part 5. Since the drug holding part 193 including the drug holding part 193a is made with a thickness that can contact the narrow hole part 5, the narrow hole part 5 is anesthetized by the drug holding part 193a. At the same time or after the anesthesia operation, the balloon 120 is expanded to the extent that the narrow hole 5 is expanded, and the narrow hole 5 is expanded. Then, with the balloon 120 inflated or contracted, the drug holding part 193a is disposed in the wide hole part 6, and the balloon 120 is inflated again until the drug holding part 193a contacts the inner surface of the wide hole part 6. Anesthesia of the wide hole portion 6 is performed. At the same time as or after the anesthetic operation of the wide hole portion 6, the balloon 120 is inflated to the extent that the wide hole portion 6 is expanded, and the wide hole portion 6 is expanded.
At this time, the medicine holding part 193b in the intermediate part 110-2 is positioned in the narrow hole part 5 and contacts the inner surface of the narrow hole part 5, and the anesthesia of the narrow hole part 5 is continued.

  According to the above-described drug application member 191, the drug holding part 193 b in the intermediate part 110-2 is the inner surface of the narrow hole part 5 even when the drug holding part 193 a located in the distal end part 110-1 is located in the wide hole part 6. Is in contact with Therefore, the drug application member 191 can apply the anesthetic to the narrow hole portion 5 more efficiently, effectively, and continuously than the case of the drug application member 101.

  Furthermore, as a modification of the drug application member 191, a drug application member 192 shown in FIG. 17 may be configured. In the medicine application member 191, the medicine holding portion 193 is continuously provided from the tip portion 110-1 to the intermediate portion 110-2. However, the medicine application member 192 includes the medicine holding portion as the tip portion 110-1 and the intermediate portion. 110-2 are provided separately from each other. In addition, the code | symbol 194 is attached | subjected to the chemical | medical agent holding | maintenance part provided corresponding to the intermediate part 110-2. Also in the drug application member 192, the drug holding part 125 and the drug holding part 194 are manufactured with a thickness that can contact the narrow hole part 5. Other configurations of the drug application member 192 are the same as those of the drug application member 191.

  Such a drug application member 192 is used in the same manner as the drug application member 191 described above. In the medicine application member 192, the amount of the medicine holding portion used is reduced as compared with the medicine application member 191, so that the cost can be reduced.

  Furthermore, the respective drug application members 101 to 104, 191, and 192 described above extend from the rear end 110b along the base material 110 to the drug holding portions 125 and 126 and the narrow hole drug holding portion 128. And you may make it provide the chemical | medical agent channel which supplies the chemical | medical agent added to these. That is, FIG. 5 illustrates the configuration of the drug application member 105 provided with the drug passage 130 with respect to the drug application member 101, and FIG. 6 illustrates the drug provided with the drug path 130 with respect to the drug application member 102. 7 illustrates the configuration of the application member 106, FIG. 7 illustrates the configuration of the drug application member 107 provided with the drug passage 130 with respect to the drug application member 103, and FIG. 8 illustrates the configuration of the drug application member 104. The structure of the medicine application member 108 provided with the medicine passage 130 is shown. Illustration of the drug application members 191 and 192 is omitted.

  Further, in FIG. 14, as an example, a gas supply device 160 is attached to the gas passage 115 via the valve 150 to the drug application member 105 having the drug passage 130 shown in FIG. A drug application system 172 with an instrument 162 attached is shown. In the system 172, an additional drug can be supplied to the drug holder 125 through the drug channel 130 using the drug supply instrument 162. Of course, the gas supply device 160 and the drug supply device 162 are attached to the drug application member having the configuration shown in FIGS. 6 to 8 and also to the drug application members 191 and 192 having the drug passage. A drug application system can be configured.

  In each of the embodiments shown in FIGS. 5 to 8, the drug passage 130 is formed in the base material 110, but the shape and form of the passage are not limited to the illustrated shape and form, for example, a thin tube May be formed along and fixed to the outer surface 110c of the base material 110, or may be separated from the outer surface 110c and extend separately from the base material 110.

  As shown in FIGS. 5, 7, and 8, the drug outlet 130 a of the drug passage 130 is disposed around the outer surface 110 c of the base material 110 in the vicinity of the drug holding part 125 and the narrow hole drug holding part 128. Preferably, it is provided at a plurality of locations. Further, as shown in FIG. 6, a medicine outlet 130a may be provided so as to be directly supplied to the medicine holding portion 126b.

  By providing the drug passage 130 as described above, the drug holding units 125 and 126 and the narrow hole drug holding unit 128 can be replenished as necessary.

  Furthermore, with respect to each of the above-described drug application members 101 to 104, the base 110 extends from the rear end 110b of the base 110 along the base 110, and opens at the front end 110a of the base 110. May be provided with a second drug passage for supplying the second drug that gives different actions to the body cavity to the tip 110a. As an example, FIG. 9 illustrates a configuration of a drug application member 109 provided with a second drug passage 135 with respect to the drug application member 105 having the drug passage 130 illustrated in FIG. Although not shown in the figure, the medicine application member 106 having the medicine passage 130 shown in FIG. 6 is added to the medicine application member 107 having the medicine passage 130 shown in FIG. 7, and the medicine application member having the medicine passage 130 shown in FIG. Each member 108 may be provided with a second drug passage 135. Although not shown, the drug application member 101 shown in FIG. 1, the drug application member 102 shown in FIG. 2, the drug application member 103 shown in FIG. 3, and the drug application member 104 shown in FIG. In addition, the second drug passage 135 can be provided for each of the drug application members 191 and 192 having the drug path.

  Further, in FIG. 15, as an example, a gas supply device 160 is attached to the gas passage 115 via the valve 150 to the drug application member 109 having the drug passage 130 shown in FIG. A drug application system 173 is shown in which a device 162 is attached and a second drug supply device 163 is attached to the second drug passage 135. In the system 173, the second drug supply device 163 can be used to supply the second drug to the inner surface of the body cavity through the second drug channel 135. Of course, the drug application system can be configured by attaching the second drug supply device 163 to the drug application member having the configuration in which the second drug passage 135 is provided as described above.

  In the drawing, the second drug passage 135 is formed in the base material 110, but the shape and form of the passage are not limited to the shape and form shown in the figure. For example, a thin tube is formed on the outer surface of the base material 110. It is also possible to adopt a form such as extending along and fixed to 110c, or separated from the outer surface 110c and extending separately from the substrate 110. Further, the outlet of the second chemical liquid passage 135 at the tip 110a is not limited to the illustrated position.

Examples of the second drug include a hemostatic agent and an anesthetic for the throat.
By providing the second medicine passage 135 as described above, the second medicine can be supplied to the inner surface of the body cavity as necessary, and convenience can be improved.

In addition, it is also possible to take the structure which combined suitably the structure in each of the said drug application members 101-104 shown in FIGS. 1-4 mentioned above and the drug application members 191 and 192 shown in FIG.16 and FIG.17. is there.
Further, in each of the drug application members described above, the thickness of the base 110 is uniform over the entire length, but is not limited thereto, and the thickness is appropriately changed for convenience of drug application and the like. You can also.

  The present invention provides, for example, a drug application member that is inserted into the nasal cavity to anesthetize the nasal cavity part before an nasal endoscope is inserted into the nasal cavity, and the drug application member. It can be applied to the provided drug application system.

It is sectional drawing in an example of the member for chemical | medical agent application in one Embodiment of this invention. It is sectional drawing in the modification of the member for chemical | medical agent application shown in FIG. It is sectional drawing in the modification of the member for chemical | medical agent application | coating shown in FIG. It is sectional drawing in the modification of the member for chemical | medical agent application shown in FIG. It is sectional drawing in the other modification of the member for chemical | medical agent application shown in FIG. It is sectional drawing in the other modification of the chemical | medical agent application member shown in FIG. It is sectional drawing in the other modification of the member for chemical | medical agent application shown in FIG. It is sectional drawing in the other modification of the chemical | medical agent application member shown in FIG. It is sectional drawing in the other modification of the member for chemical | medical agent application shown in FIG. FIG. 5 is a cross-sectional view of a modified example of a medicine holding portion of the medicine application member shown in FIGS. 1 to 4. It is sectional drawing in the other modification of the chemical | medical agent holding | maintenance part of the chemical | medical agent application member shown to FIGS. It is a figure which shows the structure of the chemical | medical agent application system provided with the member for chemical | medical agent application shown in FIG. It is a figure which shows the structure of the chemical | medical agent application system provided with the member for chemical | medical agent application shown in FIG. It is a figure which shows the structure of the chemical | medical agent application system provided with the member for chemical | medical agent application shown in FIG. It is a figure which shows the structure of the chemical | medical agent application system provided with the member for chemical | medical agent application shown in FIG. It is sectional drawing in the other modification of the member for chemical | medical agent application shown in FIG. It is sectional drawing in the modification of the member for chemical | medical agent application shown in FIG. It is sectional drawing which shows the structure of a nasal cavity. It is a perspective view which shows the pipe | tube used for the anesthesia in a nasal cavity.

Explanation of symbols

101-104 ... Medication application member,
110 ... base material, 110a ... front end, 110b ... rear end,
110-1 ... tip part, 110-2 ... middle part,
115 ... gas passage, 116 ... second gas passage, 120 ... balloon, 120a ... outer surface,
121 ... Narrow hole balloon, 121a ... Outer surface, 125 ... Drug holding part,
127, 128 ... narrow hole drug holding part, 129-1 ... concave part,
130 ... drug passage, 135 ... second drug passage,
150, 151 ... valves, 160, 161 ... gas supply devices.

Claims (17)

A base material made of a flexible material in the shape of an elongated round bar, the base material being inserted into the body cavity from the front end (110a) to the rear end (110b) side of the base material, A substrate (110) that proceeds in the order of a narrow hole portion and a wide hole portion present in
A gas passageway (115) extending along the substrate from the rear end;
It is provided on the entire circumference of the outer surface of the base material, communicates with the gas passage, expands when gas is supplied through the gas passage, and passes the narrow hole portion and the wide hole portion in the radial direction of the base material. A cylindrical balloon (120) that expands and expands and assists in drug application;
A drug holding part (125) provided on the outer surface (120a) of the balloon and containing the drug applied to the body cavity;
A member for applying a drug, wherein the narrow hole part and the wide hole part are expanded and the drug is applied. The balloon is provided at the distal end portion (110-1) of the base material, and is inflated when the distal end portion is positioned in the narrow hole portion and the wide hole portion, respectively, and the narrow hole portion and the wide hole portion are expanded. Expansion and assistance of drug application,
The drug holding part is provided at the distal end portion with a thickness smaller than the narrow hole part in a state where the balloon is not inflated, and when the drug holding part passes through the narrow hole part, The drug application member according to claim 1, wherein a drug is applied to the narrow hole part by expansion, and a drug is also applied to the wide hole part by expansion of the balloon when positioned in the wide hole part. The balloon is continuously provided from the distal end portion (110-1) to the intermediate portion (110-2) of the base material, and is inflated when the distal end portion is located in the wide hole portion. Expanding and expanding the narrow hole where the intermediate portion is located, and assisting in drug application,
The drug holding part has a thickness that allows contact with the inner surface of the narrow hole part in a state where the balloon is not inflated, and is provided only at the distal end portion of the base material. The medicine is applied to the narrow hole part when passing through the part, and the medicine is also applied to the wide hole part by expansion of the balloon when the medicine holding part is located in the wide hole part. Drug application member.   4. The drug application member according to claim 3, wherein the drug holding part is provided continuously from the tip part to the intermediate part as well as the tip part. A second gas passage (116) extending along the substrate from the rear end;
When the tip portion is located in the wide hole portion, the second gas passage is provided around the entire outer surface of the base material in the intermediate portion (110-2) of the base material located in the narrow hole portion. A cylinder that expands the narrow hole portion in the radial direction of the base material and assists the application of the medicine by supplying gas through the second gas passage when the intermediate portion is located in the narrow hole portion. Shaped balloon for narrow holes (121),
The narrow hole portion is provided on the outer surface (121a) of the narrow hole balloon, contains a drug applied to the narrow hole portion by the expansion of the narrow hole balloon, and the narrow hole portion is in an unexpanded state. The drug-applying member according to claim 2, further comprising a narrow-hole drug holding part (128) having a smaller thickness.   5. The medicine passage according to claim 1, further comprising a medicine passage extending from the rear end along the base material to the medicine holding section and supplying a medicine to be added to the medicine holding section. The member for drug application.   A drug passage (130 extending from the rear end along the base material to the drug holding part and the narrow hole drug holding part and supplying a drug to be added to the drug holding part and the narrow hole drug holding part. The member for chemical | medical agent application | coating of Claim 5 further provided.   The drug application member according to claim 1, wherein the drug holding part is made of a fiber material having liquid absorbency.   The drug application member according to claim 5 or 7, wherein the drug holding part and the narrow hole drug holding part are made of a fiber material having liquid absorbency.   The said medicine holding | maintenance part is a member for a medicine application | coating in any one of Claim 1 to 4 and 6 which has several recessed part (129-1) which is formed in the outer surface of the said balloon and accommodates a medicine.   The said chemical | medical agent holding | maintenance part and the said chemical | medical agent holding part for narrow holes have a some recessed part (129-1) formed in the outer surface of the said balloon and the said balloon for narrow holes, and accommodates a chemical | medical agent. The member for drug application.   The body cavity is a nasal cavity, the drug is an anesthetic, and the balloon expands the narrow hole part and the wide hole part to a degree sufficient for a transnasal endoscope to pass through the nasal cavity. The member for drug application according to any one of 1 to 4, 6, 8, and 10.   The body cavity is a nasal cavity, the drug is an anesthetic, and the balloon expands the narrow hole part and the wide hole part to a degree sufficient for a transnasal endoscope to pass through the nasal cavity, and The member for drug application according to any one of claims 5, 7, 9, and 11, wherein the hole balloon expands the narrow hole part to a degree sufficient for a transnasal endoscope to pass through the nasal cavity. .   A second drug passage (135) that extends from the rear end along the base material to the tip and that supplies a second drug that provides an action different from the drug to the body cavity from the tip to the body cavity is further provided. The member for drug application according to any one of claims 1 to 13. The member (101-103) for medicine application according to any one of claims 1 to 14,
A gas supply device (160) that is attached to the gas passage via a valve (150) on the rear end side of the base material and supplies gas to the balloon;
A drug application system comprising:   When the medicine application member has a second gas passage, the gas supply device is further attached to the second gas passage via a valve (151) to supply gas to the narrow hole balloon. 15. The medicine application system according to 15.   The drug application system according to claim 15 or 16, further comprising a drug supply device (162) that is attached to the drug path and supplies a drug to the drug holding section when the drug application member has a drug path.

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