JP3320265B2 - Nasal administration device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a nasal administration device suitable for administering a powdered drug filled in a capsule into the nasal cavity.

[0002]

2. Description of the Related Art In general, a method of treating a patient suffering from nasal allergy or asthma by administering a powdery drug through a nasal cavity is employed. In this treatment method, a powdery drug filled in a capsule is administered into the nasal cavity by using a special sprayer.

[0003] Further, as a nebulizer used for this treatment, there is known a nebulizer disclosed in JP-A-59-34267 (hereinafter referred to as "prior art").

In this conventional sprayer, a pump portion is provided on the air inflow side of the cylindrical member, a concave portion into which a capsule is inserted is formed on the air outflow side of the cylindrical member, and the tip side of the cylindrical member is formed. Is detachably provided with a distal end having an opening serving as a chemical spray port, and a capsule receiving portion is formed inside by fitting the distal end into the cylindrical member. Furthermore, a cap is provided which is detachably fitted to the cylindrical member over the distal end portion, a needle extending in the axial direction is provided in the cap, and the cap is mounted with the distal end portion fitted to the cylindrical member. Thus, the capsule contained in the capsule containing portion is pierced by the needle in the cap.

In the prior art constructed as described above, first, when a capsule is pierced in preparation for administration, a capsule filled with a powdery drug is inserted into the concave portion of the cylindrical member, and then the distal end portion is inserted into the cylindrical member. The capsule is accommodated in the capsule accommodating part by fitting, and a cap is attached from the distal end portion so that the needle is inserted into the opening of the distal end portion,
A hole is made on each side of the capsule in the axial direction by a needle provided in the cap.

Next, at the time of administration of the medicine, the cap is removed from the cylindrical member, the tip is inserted into one of the nasal cavities of the patient, and the pump is pressed, whereby air from the pump is passed through the air introduction passage. The drug is circulated through the capsule, and the air sprays the medicine in the capsule into the nasal cavity of the patient from the opening. Is to be administered.

In addition, since the administration to the nasal cavity is performed alternately for the left and right nasal cavities, the space between the capsule housing portion and the capsule is prevented so that all the medicine in the capsule is not administered by one pressing operation of the pump portion. The medicine is administered in a prescribed amount by performing a pressing operation of the pump section about four times in one nasal cavity.

[0008]

In the above-described conventional sprayer, since the left and right nasal cavities are dosed one by one, it is necessary to supply the medicine equally to the left and right nasal cavities. Also, there is a problem that the pressing of the pump section and the insertion of the cylindrical member into the nasal cavity must be repeated, which makes the handling at the time of administration complicated.

When a hole is formed in the capsule in preparation for administration, the tip is removed from the cylindrical member to accommodate the capsule, and in this state, a cap is inserted into the cylindrical member and the tip to make a hole. When spraying the medicine, the pump is pressed again after the cap is removed again to spray the nasal cavity. Therefore, the cap must be attached and removed, and the preparation operation is troublesome. Further, there is a problem that the cap may be lost.

Further, since the capsule is pierced by inserting the cap into the cylindrical member and the tip end,
If the cap is not sufficiently inserted, there is a problem that a hole cannot be reliably formed in the capsule, so that not only the efficiency of spraying the drug is lowered but also the drug may not be sprayed.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems of the prior art, and has a simple operation so that a drug in a capsule can be administered to a patient's nasal cavity and a capsule can be reliably pierced. It is intended to provide.

[0012]

In order to solve the above-mentioned problems, a nasal administration device according to the first aspect of the present invention has an axial direction.
A fixing member consisting of a tubular body extending in
Is provided on the fixed member so that it can move only in the axial direction,
A capsule receiving hole is formed in the
Capsule gas that serves as a guide when storing capsules in the cavity
A movable member on which an id is formed;
Is a pump means for supplying air toward the capsule held in the capsule accommodating hole of the movable member, detachably attached to the movable member, the patient's medicine in the capsule by air supplied from said pump means A medicine passage means for supplying into the nasal cavity, and a pin provided on the fixed member to protrude in the axial direction from the bottom of the capsule receiving hole of the movable member. The capsule is guided by the capsule guide. air inlet holes first drilling means consist pin provided movably in the axial direction before Symbol medicine passage unit side, moving the pin when in the accommodation hole I pushed the capsule
And a second perforating means for perforating an air outflow hole in the capsule in the capsule accommodation hole .

According to a second aspect of the present invention, the movable member has an axial direction.
On the other side, form a male screw on the outer peripheral side of the capsule guide,
The medicine passage means is provided on the inner peripheral side on one side in the axial direction.
A female screw to be screwed to the male screw of the material is formed and
A guide insertion hole into which the capsule guide is inserted is formed,
The air is supplied from the pump means to the other side in the axial direction.
Has a drug passage to supply the drug in the capsule to the patient's nasal cavity
Spray nozzle is formed, and a female screw is screwed against the male screw.
The movable member toward the guide insertion hole
In that a structure that is attached while moved.

[0014]

According to the structure of the first aspect of the present invention, in order to make a hole in the capsule, the capsule is inserted into the capsule receiving hole of the capsule holding means and pushed in, so that the capsule projecting to the bottom of the capsule receiving hole. The air inflow hole can be formed in the capsule by the one drilling means. At this time, the mosquito capsules
By inserting the capsule along the capsule guide , the capsule can be accurately inserted into the capsule receiving hole. Moreover, Kapuseruga the pushing amount of the capsule when it pushed the capsule
By visually by id, to the capsule can check whether the air inlet holes bored, it is possible to open the air inlet holes securely to the capsule. Further, by moving the second drilling means in the axial direction, an air outflow hole can be formed in the capsule.

Next, in order to spray the medicine in the perforated capsule into the nasal cavity of the patient, air is supplied from the pump means toward the capsule, and this air is supplied to the air inflow hole, the inside of the capsule, and the air outflow hole. The medicine in the capsule can be mixed into the air and supplied to the nasal cavity of the patient by flowing the medicine through the medicine passage means side through the medicine.

According to the structure of the second aspect of the present invention, the movable member
By screwing the female screw of the chemical passage means to the male screw of
Thus, the medicine passage means can be attached to a movable member.
You. Also, connect the female screw of the chemical passage means to the male screw of the movable member.
When screwed, the movable member moves to the guide insertion hole side.
Therefore, the first drilling hand that has an air inflow hole in the capsule
Step pins can be withdrawn from the capsule .

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a nasal administration device according to an embodiment of the present invention will be described with reference to FIGS.

In the drawing, reference numeral 1 denotes a nasal administration device according to the present embodiment. The nasal administration device 1 includes a capsule holder 2, a pump section 13, a medicine passage 19, and a first piercing pin 2 described later.
1, a capsule guide 22, a second piercing pin 24, and the like.

Reference numeral 2 denotes a capsule holder which forms a capsule holding portion. As shown in FIG. 2, the capsule holder 2 includes a fixing member 3 which is formed in a double cylindrical shape and which will be described later,
And a movable member 8 provided on the inner peripheral side of the movable member 8 so as to be movable in the axial direction with respect to the fixed member 3.

Reference numeral 3 denotes a fixing member for the capsule holder 2.
The fixing member 3 includes an outer cylindrical portion 3A formed in a stepped cylindrical shape,
An inner cylindrical portion 3B provided in the outer cylindrical portion 3A, a bottom 3C for closing a lower end side of the outer cylindrical portion 3A, a medicine catching portion 3D forming a bottom of the inner cylindrical portion 3B, and the outer cylindrical portion; And a flange portion 3E formed on the opening side of 3A. The flange portion 3E prevents the movable member 8 that moves in the axial direction on the inner peripheral surface of the outer cylindrical portion 3A from coming off. The pump section 13 provided so as to cover the fixing member 3 from the outer peripheral side is positioned. Further, the outer cylindrical portion 3A and the inner cylindrical portion 3B are provided at an intermediate position in the axial direction of the outer cylindrical portion 3A.
The opening of B is connected, and an air inflow chamber 4 is formed between the cylindrical portions 3A and 3B.

Further, an air supply passage 5 communicating with the air inflow chamber 4 is formed at the bottom 3C of the fixing member 3,
A first piercing pin 21 is formed on the medicine capturing portion 3D, which is the bottom of the inner cylindrical portion 3B, so as to protrude toward the capsule housing hole 11 side. The inner cylinder 3B has an inner peripheral side and an air inflow chamber 4.
Are formed in the inner peripheral surface of the outer cylinder portion 3A, and an engagement groove 7 is formed in the inner peripheral surface of the outer cylinder portion 3A so as to be engaged with a locking pin 10 described later, extending in the axial direction.

Reference numeral 8 denotes a movable member provided on the fixed member 3 so as to be movable in the axial direction. The movable member 8 is provided at the lower end side of the cylindrical portion 8A and the outer cylindrical portion 3A. A large-diameter bottom portion 8B held movably in the axial direction and a small-diameter projection 8C extending from the center of the bottom portion 8B into the inner cylindrical portion 3B, and the outer peripheral surface of the cylindrical portion 8A is formed all around. Over the male screw 8D
Is engraved. In the axial direction of the small-diameter projection 8C, a pin insertion hole 9 is formed, which penetrates through the bottom 8B and communicates with the inside of the cylindrical portion 8A, and through which the first piercing pin 21 is inserted.
Further, a detent pin 10 is formed on the outer peripheral side of the cylindrical portion 8A so as to protrude radially outward, and the detent pin 10 is engaged with the engaging groove 7 of the fixing member 3 so that the fixing member 3 is fixed. , While restricting rotation of the movable member 8 with respect to the fixed member 3 while allowing the movable member 8 to move in the axial direction.

On the other hand, the inner peripheral side of the cylindrical portion 8A of the movable member 8 is a capsule receiving hole 11 slightly larger in diameter than the capsule K. The capsule receiving hole 11 is formed as a bottomed hole having a bottom at one side. On the opening side, a capsule guide 22 is formed extending in the axial direction from the cylindrical portion 8A.

As described above, in the capsule holder 2 according to the present embodiment, the movable member 8 is connected to the outer cylindrical portion 3A of the fixed member 3.
When the male screw 8D of the movable member 8 is screwed into the female screw 17A described later, the rotation of the movable member 8 with respect to the fixed member 3 is regulated by the rotation stop pin 10. The movable member 8 is automatically pulled up to the passage member 15 side.

Reference numeral 12 denotes a supply valve provided in the air inflow chamber 4. The supply valve 12 opens and closes an air supply passage 5 formed in the fixed member 3, and air is supplied from a pump unit 13. When the valve is opened, the air supply passage 5 is closed when air is sucked into the pump section 13.

Reference numeral 13 denotes a pump portion formed of a rubber material into a bottomed cylindrical shape. The pump portion 13 has thick openings 13A and 13B and the openings 13A and 13B.
The opening 13A is hermetically mounted on the outer cylindrical portion 3A of the fixing member 3. Further, most of the capsule holder 2 is accommodated in the pump section 13, thereby reducing the size of the nasal administration device 1 in the axial direction.

Reference numeral 14 denotes a suction valve provided at a bottom portion 13B of the pump portion 13. The suction valve 14 is located at a central portion and communicates with the inside of the pump portion 13, and opens and closes the suction passage 14A. And a valve element 14B to be valved.
The valve element 14B closes when air is supplied from the pump section 13 and opens when air is sucked into the pump section 13 from outside.

On the other hand, reference numeral 15 denotes a passage member provided in the movable member 8 of the capsule holder 2, and the passage member 15 has a small-diameter portion 15A on one side on the capsule holder 2 side and a large-diameter portion 15B on the other side. ing. Further, left and right spray nozzles 16 are formed to project from the large diameter portion 15B.

A movable member screw hole 17 is formed in the small diameter portion 15A, and a female screw 17 screwed to a male screw 8D of the movable member 8 is formed on the inner periphery of the movable member screw hole 17 on the opening side.
A is formed. Further, the guide insertion hole 1 into which the capsule guide 22 is inserted is located in the back of the movable member screw hole 17.
8 is formed, and an annular convex portion 18A is provided on the upper bottom surface of the guide insertion hole 18 so as to protrude into the capsule receiving hole 11, and the annular convex portion 18A holds the capsule K contained in the capsule receiving hole 11. It is pressed and fixed in the axial direction.

Numerals 19, 19 are formed in the passage member 15 and denote left and right chemical passages forming the chemical passage means. Each of the chemical passages 19 communicates with the guide insertion hole 18 at the base end and at the left and right at the distal end. It is formed in a substantially U-shape that branches rightward, and its tip is a separate spray port 20, 20 for each spray nozzle 16.

Reference numeral 21 denotes a first piercing pin provided as a first piercing means provided on the fixing member 3. The first piercing pin 21 has a base end fixed to the medicine catching section 3D and a distal end inserted through a pin. It protrudes from the bottom of the capsule housing hole 11 toward the opening via the hole 9 and has a sharp tip 21A at the tip.

When the movable member 8 is located on the pump unit 13 side, the first drilling pin 21
1A is designed to protrude from the bottom of the capsule housing hole 11, and in this state, the capsule K can be inserted into the capsule housing hole 11 and pushed into the capsule K to form the air inlet hole H1.

On the other hand, when the movable member 8 is located on the side of the passage member 15, the needle tip 21A is retracted into the pin insertion hole 9, so that the needle tip 21A is removed from the air inlet hole H1. At this time, the first drilling pin 2
1 is located in the pin insertion hole 9 and the first drilling pin 21
As a result, the flow passage area of the pin insertion hole 9 is reduced, so that the flow velocity of the air from the pump unit 13 can be increased by the pin insertion hole 9, and the chemical in the capsule K is increased by the increased air. Can be effectively stirred.
Further, by arranging the first drilling pin 21 in the pin insertion hole 9, the amount of the chemical falling from the capsule K to the pump unit 13 side can be reduced.

Reference numerals 22, 22 denote a pair of capsule guides provided as push-in guide means provided on the movable member 8, and each of the capsule guides 22 extends axially from the opening of the cylindrical portion 8A of the movable member 8 as shown in FIG. And is formed in a cylindrical body facing each other in the same arc as the cylindrical portion 8A.
Thus, each capsule guide 22 guides when the capsule K is inserted into the capsule housing hole 11. The capsule guides 22 are separated from each other in the circumferential direction, and the space between the capsule guides 22 becomes capsule holding spaces 23 for taking out the capsule K from the capsule receiving hole 11 after the spraying of the medicine is completed. I have.

Here, the axial dimension of each capsule guide 22, that is, the height position of the distal end portion 22 A, is such that the capsule K inserted into the capsule housing hole 11 is the first punching pin 21 as shown in FIG. In the state where the needle tip 21A is in contact with the needle tip 21A, or where the needle tip 21A is slightly pierced into the capsule K, the air inflow hole H1 is not formed. As shown in FIG. 5, the capsule K is pushed into the capsule receiving hole 11 by a predetermined amount, so that a first piercing pin 21 is inserted into one end of the capsule K.
The tip 22A and the other end (the height of the capsule K) of the capsule K are set so as to substantially coincide with each other in a state where the air inflow hole H1 is securely formed.

When each capsule guide 22 pushes the capsule K into the capsule accommodating hole 11 to form the air inflow hole H1 with the first piercing pin 21,
When the first punching pin 21 does not reliably pierce the capsule K due to insufficient pushing of the capsule K, the pushing of the capsule K is insufficient by projecting the other end of the capsule K from the tip 22A. This is visually confirmed, and the capsule K is securely pushed in.
Further, when the capsule K is pushed in with a fingertip or the like, the tip 22A of each capsule guide 22 is brought into contact with the fingertip at the time when a prescribed pushing amount is reached. This prevents the capsule K from being damaged.

Reference numeral 24 denotes a second piercing pin provided as a second piercing means provided in the passage member 15 so as to face the first piercing pin 21. The base end side of the second piercing pin 24 is a shaft. It is fixed to a sliding block 25 slidably provided in the direction, and its tip side extends so as to penetrate the seal rubber 26, and its tip is a sharp needle tip 24A. The sliding block 25 is provided with an operating plate 27 provided outside the passage member 15 for operating the second drilling pin 24.
(See FIG. 1). When the operation plate 27 is moved in the direction of arrow A in FIG. 1, the second drilling pin 24 moves in the direction of arrow A via the sliding block 25, and the needle tip 24A moves the capsule. K is provided with an air outflow hole H2.

The nasal administration device 1 according to the present embodiment has the above-described configuration. Next, the operation of use will be described.

First, the movable member 8 of the capsule holder 2 is positioned on the pump section 13 side, so that the needle tip 21A of the first piercing pin 21 projects to the bottom of the capsule receiving hole 11. In this state, after inserting the capsule K into the capsule receiving hole 11 as shown in FIG. 4, the capsule K is pushed in by a fingertip or the like by a specified amount having substantially the same depth as the capsule receiving hole 11. As a result, as shown in FIG. 5, the needle tip 21A of the pin 21 pierces the capsule K, and an air inflow hole H1 is formed in the capsule K.

When the air inflow hole H1 is formed, the other end of the capsule K is pushed into the capsule receiving hole 11 and then the other end of the capsule K is moved to the tip 22A of each capsule guide 22.
The capsule K is pushed again until the other end of the capsule K and the tip 22A of each capsule guide 22 substantially coincide with each other. , An air inlet hole H1 can be formed. When pushing the capsule K,
Since the fingertip abuts on the distal end portion 22A of each capsule guide 22 with a predetermined amount of pressing to restrict further pressing, it is possible to prevent the capsule K from being damaged by pressing beyond the specified amount. .

Next, in order to mount the passage member 15 on the capsule holder 2, the female screw 17A on the passage member 15 side is screwed to the male screw 8D on the capsule holder 2 side. This allows
Since the movable member 8 of the capsule holder 2 moves toward the passage member 15 by screwing the passage member 15, the capsule K is slightly pressed in the axial direction by the annular projection 18 </ b> A of the guide insertion hole 18 in the capsule receiving hole 11. Held in state. Further, at this time, the air inflow hole H is inserted into the capsule K.
The needle tip 21A of the first drilling pin 21 with the hole 1 is removed, and the interior of the capsule K communicates with the air inflow chamber 4 through the air inflow hole H1, the pin insertion hole 9 and each communication hole 6.

Further, in order to form the air outflow hole H2 in the capsule K, the operation hole 27 is moved in the direction of arrow A to move the second piercing pin 24 toward the capsule K, and the needle tip 24A Then, an air outflow hole H2 is formed in the capsule K. Then, return the operation plate 27 to the original position, and
Remove 4A from the capsule. Thereafter, the operation plate 27 is returned to the original position, and the needle tip 24A is removed from the capsule K. This means that the capsule K has been pierced in preparation for administration.

Next, a medication operation for spraying the drug in the perforated capsule K into the nasal cavity of the patient will be described.

First, the respective spray nozzles 16 are inserted into both nasal cavities of the patient, and as shown in FIG.
By crushing C, an air flow is generated from the pump unit 13, this air is caused to act on the air supply passage 5, and the supply valve 12 is pressed against the medicine trapping unit 3 </ b> D of the inner cylinder 3 </ b> B to open the valve, and air inflow The capsule K flows into the capsule K through the chamber 4, the communication holes 6, the pin insertion holes 9, and the air inflow holes H1. As a result, the air that has flowed into the capsule K is agitated with the chemicals and becomes air with the chemicals mixed therein. Therefore, the air with the chemicals mixed therein is passed through the air outflow hole H2 and left and right through the left and right chemical passages 19, 19 and left and right. By spraying from the right spray ports 20, 20,
The drug can be administered simultaneously to the left and right nasal cavity of the patient.

Since the speed of the air supplied from the pump unit 13 is increased in the pin insertion hole 9 by the first piercing pin 21, the medicine in the capsule K is effectively stirred by the increased air. can do. Further, the amount of medicine falling from inside the capsule K is reduced by the first piercing pin 21, and the dropped medicine is captured by the medicine capturing means 3D.

Thus, according to the present embodiment, the capsule K
To the movable member 8 and the second piercing pin 24
The air inflow hole H1 and the air outflow hole H2 can be easily formed in the axial direction of the capsule K by the operation of reciprocating one time in the axial direction, and the preparation operation up to the administration operation can be greatly simplified. Above, the medicine in the capsule K is supplied to the left and right spray nozzles 1 through the left and right medicine passages 19,19.
By spraying from the nasal cavity 6,16, it is possible to simultaneously administer medication to the left and right nasal cavities of the patient, so that the handling of the nasal cavity medication device 1 can be greatly improved in the preparation operation and the administration operation.

Further, the capsule K is inserted into the capsule receiving hole 11.
When the air inlet hole H1 is opened by the first hole-piercing pin 21 by pressing it into the capsule K, it is possible to visually check whether or not the first air inlet hole H1 is opened in the capsule K by each capsule guide 22. It is possible to reliably perform the work of piercing the inflow hole H1, prevent the poor piercing of the air inflow hole H1 and the poor spraying of the medicine due to the non-perforation, and improve the reliability of the nasal administration device 1. Can be.

When the capsule K is pushed into the capsule receiving hole 11, when the capsule K is opened with the air inflow hole H1, the fingertip is moved to the distal end portion 22A of each capsule guide 22.
, The pushing of the capsule K beyond a specified level can be suppressed, so that the capsule K can be prevented from being damaged by excessive pushing.

Further, by providing each capsule guide 22 on the opening side of the capsule accommodation hole 11, the capsule K can be guided to the capsule accommodation hole 11 by each capsule guide 22. It can be easily inserted into the inside, and the workability when inserting the capsule K can be improved.

Further, since each gripping space 23 is formed between each capsule guide 22, the capsule K is gripped via each gripping space 23 after the administration is completed.
The capsule K can be easily taken out.

On the other hand, in the present embodiment, the opening of the air inflow hole H1 and the air outflow hole H2 formed in the axial direction of the capsule K are performed by separate drilling pins 21 and 24, respectively. The length of the pins 21 and 24 can be reduced, and the overall length of the nasal administration device 1 can be reduced.

Also, since a tool for making a hole in the capsule K is entirely incorporated in the dispenser 1 itself, the medicine can be dispensed without being removed at all. Not only can the operation be omitted, but there is no danger that the drilling tool will be lost, and the handling can be made safer.

Further, a small amount of medicine dropped from the capsule K can be captured by the medicine capturing section 3D of the fixing member 3, and the medicine captured by the medicine capturing section 3D is supplied by air from the pump section 13 during the administration operation. Since the medicine can be supplied to the left and right nasal cavities together with the medicine in the capsule K, the amount of medicine remaining in the nasal administration device 1 can be reduced, and the prescribed amount of medicine filled in the capsule K can be reduced. It is possible to reliably administer the drug to the patient and to reduce the frequency of cleaning the nasal administration device 1.

In the above embodiment, the case where the movable member 8 is provided with the pair of capsule guides 22 is exemplified. However, for example, as shown in a modification shown in FIG. Alternatively, a capsule guide 31 may be provided.

Although each of the capsule guides 22 and 31 is formed as a cylindrical body having substantially the same diameter as the cylindrical portion 8A of the movable member 8, each capsule guide may be formed in another cylindrical shape such as a flat plate or a sword. Good.

Further, in the above embodiment, two chemical passages 19, 19 are formed in the passage member 15 by branching left and right.
Although it has been described that the left and right spray outlets 20 and 20 simultaneously administer medication to both the left and right nasal cavities, the medicine passage is connected by one.
The book may be alternately dosed to the left and right nasal cavities.

[0057]

As described in detail above, according to the first aspect of the present invention, in order to make a hole in a capsule, the capsule is inserted into the capsule receiving hole of the capsule holding means and pushed in, thereby making the capsule receiving hole. An air inlet hole can be formed in the capsule by a first piercing means projecting from the bottom of the capsule, and by inserting the capsule along the capsule guide at this time, the capsule can be accurately inserted into the capsule receiving hole. In addition, when the capsule is pushed in, the capsule guide can confirm whether or not the air inflow hole is opened in the capsule, and the air inflow hole can be reliably opened in the capsule. Thereby, the drilling preparation operation and the dosing operation can be simplified, and the operation of piercing the air inflow hole can be reliably performed by the capsule guide . Poor spraying of the medicine can be prevented, and the reliability of the nasal administration device can be improved.

According to the second aspect of the present invention, the male member of the movable member
By screwing the female screw of the medicine passage means
The article passage means can be attached to the movable member. Also,
When the female screw of the chemical passage means is screwed to the male screw of the movable member
The movable member moves toward the guide insertion hole,
The pin of the first drilling means that drilled the air inlet hole in
The capsule can be withdrawn and the capsule air inflow
Can Rukoto communicated holes in the pump means side.

[Brief description of the drawings]

FIG. 1 is an external view showing a nasal administration device according to an embodiment of the present invention.

FIG. 2 is a sectional view showing a nasal administration device according to an embodiment of the present invention.

FIG. 3 is an external perspective view showing a capsule holder, capsule guides, and the like in FIG. 2 in an enlarged manner.

4 is a cross-sectional view showing a state in which the capsule is inserted into the capsule receiving hole, as viewed from the direction of arrows IV-IV in FIG. 3;

FIG. 5 is a cross-sectional view similar to FIG. 4, showing a state in which the capsule is pushed into the capsule housing hole and an air inflow hole is formed in the capsule with a first piercing pin.

FIG. 6 is a cross-sectional view showing a state in which a medicine in a capsule is sprayed by pressing a pump unit, as viewed from the same position as in FIG. 2;

FIG. 7 is an external perspective view showing a capsule guide according to a modification of the present invention as viewed from the same position as in FIG. 3;

[Explanation of symbols]

Reference Signs List 1 Dosing device for nasal cavity 2 Capsule holder (capsule holding means) 11 Capsule accommodating hole 13 Pump section (pump means) 19 Chemical passage (chemical passage means) 20 Spray port 21 First piercing pin (first piercing means) 22, 31 capsules guide 22A tip 24 second piercing pin (second drilling means) K capsule H1 air inlet hole H2 air outlet hole

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Kazunori Ishiseki 1370 Onna, Atsugi-shi, Kanagawa Prefecture Inside Unisia Gex Co., Ltd. (72) Akira Yanagawa 5-3 Fujimi-gaoka, Tsuzuki-ku, Yokohama-shi, Kanagawa Prefecture (56) References Special JP-A-50-48782 (JP, A) JP-A-59-34267 (JP, A) JP-A-56-15759 (JP, A) JP-A-3-66382 (JP, A) JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) A61M 15/00-15/08 A61M 13/00 A61M 11/00

Claims (2)

(57) [Claims] 1. A fixing member comprising a cylindrical body extending in an axial direction.
And one side in the axial direction is provided on the fixing member so as to be movable only in the axial direction.
When the capsule receiving hole is formed on the other side in the axial direction,
At the time of storing the capsule in the capsule receiving hole
A movable member capsule guide is formed as a, attached to the fixed member, and pump means for supplying air toward the capsule held in the capsule accommodating hole of the movable member, removably provided on the front Symbol movable member It is, projecting a medicine passage means for supplying direct the chemicals in the capsule to the nasal cavity of a patient by air supplied from said pump means, from the bottom of the capsule accommodating hole before Symbol movable member in the axial direction
And consists pin provided on said stationary member, said capsule
Air inlet holes and the first drilling means, before Symbol medicine passage means is movable in the axial direction on the side pin when they push do the capsules in the capsule accommodating hole while guided by the cell guide
The cap is moved by moving the pin.
A second perforating means for perforating an air outflow hole in the capsule in the cell accommodating hole . 2. A capsule on the other side of the movable member in the axial direction.
An external thread is formed on the outer peripheral side of the guide, and the chemical passage means is provided on the inner peripheral side on one side in the axial direction.
A female screw to be screwed to the male screw of the material is formed and
A guide insertion hole into which the capsule guide is inserted is formed,
The air is supplied from the pump means to the other side in the axial direction.
Has a drug passage to supply the drug in the capsule to the patient's nasal cavity
Spray nozzle is formed, and a female screw is screwed against the male screw.
The movable member toward the guide insertion hole
Medicine administering device as claimed in claim 1 comprising a structure that is attached while moved.