JPH09322938A - Inhaler - Google Patents

Abstract

(57) 【Abstract】 PROBLEM TO BE SOLVED: To efficiently communicate the medicine in the medicine containing section to the patient by the air discharged from the pump section by connecting the medicine containing section and the ventilation path in synchronization with the timing at which the patient inhales air. Administer. A needle valve 25 that opens and closes a drug powder outflow passage 8 that communicates with a capsule storage chamber 7, a flap valve 28 that opens when a patient inhales, and a needle valve that operates in conjunction with the valve opening operation of the flap valve 28. The interlocking rod 29 for seating 25 on the chemical powder outflow passage 8 is provided. Therefore,
The patient inhales, and the negative pressure at this time causes the flap valve 28 to open, and at the same time, the air discharged from the pump unit 20 can cause the medicine powder to flow out from the medicine powder outflow passage 8. The outflow timing of the drug powder by the pump unit 20 can be synchronized.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an inhaler-type inhaler suitable for use in injecting a powdered drug (medicine powder) into the lungs by inhaling a patient's breath.

[0002]

2. Description of the Related Art Generally, a method of administering a drug to the lungs of an asthmatic patient includes a method of injecting a drug solution, a method of inhaling with a liquid aerosol sprayer, and a powdery form filled in a drug powder storage chamber or a capsule. A method of inhaling a drug (hereinafter referred to as medicinal powder) is used.

Among these drug administration methods for asthma patients,
In the method of inhaling the medicinal powder filled in a capsule, the patient has an inlet port in which a mouth is provided, and one side is opened to the atmosphere side and the other side is provided with a ventilation path opened to the inlet port through a capsule storage chamber. Using the inhaler described above, the capsule is mounted in the capsule storage chamber of the inhaler, and a hole communicating with the air passage is formed in the capsule using a piercing needle or the like. Then, in this state, the medicine powder in the capsule is discharged into the inhalation port by the airflow passing through the ventilation passage by sucking the breath in addition to the inhalation port,
It is inhaled into the patient's lungs.

[0004]

By the way, in the inhaler for a capsule according to the above-mentioned conventional technique, the medicinal powder filled in the capsule is inhaled through the air passage by inhaling the breath from the inhalation port. ing. However, there is a difference in the strength (spiratory capacity) when the patient inhales the medicinal powder, and if the inhalation is weak like a child or an old person, the prescribed amount of medicinal powder cannot be inhaled, and the patient may be required to administer the drug. There is a problem that there is a difference in quantity.

Therefore, a manual pump is attached to the inhaler,
It is conceivable that a child or an elderly person who has a weak suction can inhale a prescribed amount of the drug powder by positively ejecting the drug powder by the air discharged from the pump unit.

[0006] However, when the pump is used in this way, it is difficult to match the timing at which the patient inhales air (medicinal powder) and the timing at which the pump is pressed to expel the air. Has a problem of coughing and medicinal powder flowing backwards through the air passage.

The present invention has been made in view of the above-mentioned problems of the prior art, and by communicating the medicine container with the ventilation passage in synchronization with the timing at which the patient inhales the air, the air discharged from the pump unit is used. It is an object of the present invention to provide an inhalation-type medication device in which a drug in a drug container can be efficiently administered to a patient.

[0008]

In order to solve the above-mentioned problems, an inhalation-type medication device adopted by the invention of claim 1 has an inhalation port and an inhalation head having an air passage inside, and Provided to the suction head, a medicine container communicating with an air passage of the suction head, a pump portion attached to the medicine container for supplying air to the medicine container, and a suction head provided to the suction head. And a first valve body which opens and closes between the air passage and the chemical container, and which is provided in the suction head and opens when air is sucked from the suction port, and air flows back to the suction port. A second valve body that closes when the
And an interlocking member which is provided between the second valve body and the second valve body and which opens the first valve body when the second valve body opens due to the suction operation. It becomes.

With this construction, when the first valve body closes the space between the air passage and the medicine containing portion, the pump portion is pressed, and in this state, the patient sucks air through the suction port. , The second valve body opens to allow air to flow from the ventilation passage to the intake port side, and the interlocking member opens the first valve body in conjunction with the opening of the second valve body, thereby venting the air. There is communication between the passage and the medicine container. As a result, the air discharged from the pump portion flows into the medicine container, and the air causes the medicine in the medicine container to be agitated and ejected into the ventilation passage, so that the patient inhales the medicine together with the air flowing through the ventilation passage. can do.

An inhaler-type drug dispenser adopted by the invention of claim 2 has an inhalation head having an inhalation port and an air passage inside, and a medicine accommodating portion attached to the inhalation head and accommodating medicine inside. A drug outflow passage communicating between the air passage of the suction head and the drug container; a pump unit attached to the drug container for supplying air toward the drug container; A needle valve provided on the suction head for opening and closing the medicine outflow passage, a spring member for urging the needle valve in a direction away from the medicine outflow passage, and a spring member provided on the suction head for introducing air from the suction port. Is provided between the needle valve and the flap valve, which opens when the air is inhaled and closes when air flows back to the suction port, and when the flap valve is closed, the needle is closed. The valve against the spring member Held in the valve state, and composed of a coupling rod for opening the needle valve in conjunction when the flap valve is opened by the suction operation.

With this configuration, with the flap valve closed, the needle valve is seated in the medicine outflow passage against the spring member, and the needle valve is held closed by the interlocking rod. After that, the pump part is pressed. When the patient draws air through the suction port in this state, the inside of the suction port becomes negative pressure and the flap valve opens due to the pressure difference, and the air flows from the ventilation passage to the suction port side, and the interlocking rod moves the flap. The needle valve moves in conjunction with the valve opening operation, the needle valve opens due to the urging force of the spring member, and the drug outflow passage communicates with the ventilation passage. As a result, the air discharged from the pump portion flows into the medicine storage chamber, and the air causes the medicine in the medicine storage portion to be agitated and ejected from the medicine outflow passage to the ventilation passage. Along with that, medicine can be inhaled. Further, when the patient coughs while holding the suction port, the flap valve closes to block the suction port and prevent backflow of air.

According to a third aspect of the present invention, a hole forming pin for forming a drug outflow hole in the capsule housed in the drug container is provided at the tip side of the needle valve.

With this configuration, when the needle valve is moved in a state where the capsule is accommodated in the medicine accommodating portion, the capsule is communicated with the medicine outflow passage by the piercing pin provided on the tip side of the needle valve. A chemical outflow hole is drilled.

An inhalation-type medication device adopted by the invention of claim 4 has an inhalation head having an inhalation port and an air passage inside, and a medicine accommodating portion attached to the inhalation head and accommodating medicine inside. A drug outflow passage communicating between the air passage of the suction head and the drug container; a pump unit attached to the drug container for supplying air toward the drug container; A needle valve provided on the suction head for opening and closing the medicine outflow passage, a spring member for urging the needle valve in a direction away from the medicine outflow passage, and a spring member provided on the suction head for introducing air from the suction port. Is provided between the needle valve and the flap valve and a flap valve that opens when air is inhaled and closes when air flows back to the suction port. Interlocking mechanism that opens and closes the needle valve Formed by the configuration from.

With this configuration, the interlocking mechanism interlocks with the closing of the flap valve to close the needle valve and then press the pump portion. When the patient draws air through the suction port in this state, the inside of the suction port becomes negative pressure and the flap valve opens due to the pressure difference, and the air circulates from the ventilation passage to the suction port side. The needle valve is opened in conjunction with the valve opening operation, and the chemical outflow passage is connected to the ventilation passage. As a result, the air discharged from the pump portion flows into the medicine container, and the air causes the medicine in the medicine container to be agitated and ejected from the medicine outflow passage to the ventilation passage. Along with that, medicine can be inhaled. In addition, when the patient coughs while holding the suction port, the flap valve closes to block the suction port, prevent backflow of air, block the drug outflow passage, and remove the drug from the drug container. Prevent the outflow of chemicals.

According to a fifth aspect of the present invention, the interlocking mechanism is provided so as to be continuous with the moving rod that moves in the axial direction of the suction head in conjunction with the opening / closing operation of the flap valve and the moving direction of the moving rod. A first rack provided with the first rack, a second rack provided so as to be continuous in the moving direction of the needle valve, and a pinion that meshes with the first rack and the second rack. .

With this configuration, when the flap valve is opened and closed, the movable rod moves in the axial direction of the suction head in conjunction with the opening and closing operation of the flap valve, and the first rod provided on the movable rod. Since the pinion is rotated by the rack and the needle valve is closed via the second rack meshing with the pinion, the needle valve can open and close the medicine outflow passage in conjunction with the opening and closing operation of the flap valve.

[0018]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, an inhalation-type medication device according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

First, FIGS. 1 to 3 show a first embodiment of the present invention.

In the figure, reference numeral 1 denotes an inhalation head of an inhalation-type medication device, and the inhalation head 1 is roughly composed of a block housing cylinder 2, an inhalation port 3 and an air passage block 4 which will be described later.

Reference numeral 2 designates a block accommodating cylinder which is located on one side of the suction head 1 and has an air passage block 4 inserted and held therein. The block accommodating cylinder 2 has an outer peripheral side which will be described later. The guide tube portion 2A that movably supports the pressing member 24 of the punching tool 23 and the holder attachment portion 2B that is located on the opposite side of the guide tube portion 2A and forms a part of the capsule holder 9 described later are directed outward in the radial direction. Is projected on. Further, the holder mounting portion 2B is formed in a cylindrical shape, and the inner peripheral side thereof has a female screw 2C which is screwed into a male screw 15D of the movable member 15 described later.
Is engraved. Further, as shown in FIG. 2, the block accommodating cylinder 2 has a valve accommodating hole 2D which is located inside the guide cylindrical portion 2A and penetrates in the radial direction, and a block accommodating hole that intersects with the valve accommodating hole 2D. A rod sliding groove 2E extending in the axial direction of the cylinder 2 is formed.

Reference numeral 3 denotes a cylindrical suction port provided on the other side of the block housing cylinder 2. One end side of the suction port 3 is detachably attached to the other end side of the block housing cylinder 2 and the other end side outer surface thereof. Is formed in a taper shape whose diameter decreases toward the other side.

Reference numeral 4 denotes a substantially columnar air passage block inserted into the block housing cylinder 2, and the air flowing into the air passage block 4 is a powdery chemical agent (hereinafter referred to as medicinal powder).
At the same time, a ventilation path 5 that flows out toward the suction port 3 is provided,
The air passage 5 is located on one side and the inflow side air passages 5A, 5A into which the air flows, and the air located in the central portion, which diffuses the powdery chemicals by the air that has flowed in from the respective inflow side air passages 5A. And the drug powder diffusion passage 5B located on the other side.
It is composed of outflow-side air passages 5C and 5C for letting out the drug diffused in B to the suction port 3 side. Further, the valve body insertion hole 2 of the block housing cylinder 2 is arranged in the radial direction of the ventilation path block 4.
A valve body insertion hole 4A communicating with the drug powder diffusion passage 5B is formed so as to be coaxial with D, and each ventilation passage 5A is formed in the axial direction.
An auxiliary air passage (not shown) is formed at a position deviated from 5C in the circumferential direction so as to eliminate stuffiness during inhalation.

Reference numeral 6 denotes a holder mounting portion 2B of the block accommodating cylinder 2.
Located at the center, the block housing cylinder 2 and the air passage block 4
The upper capsule hole 6 is formed over the upper capsule hole 6, and the upper capsule hole 6 constitutes a capsule housing chamber 7 which is a medicine housing chamber together with a lower capsule hole 16 described later. here,
As shown in FIGS. 2 and 3, the capsule storage chamber 7 stores a long cylindrical capsule K filled with drug powder inside.

Reference numeral 8 denotes a drug powder outflow passage which is provided at the center of the upper part of the upper capsule hole 6 and which connects the capsule storage chamber 7 and the drug powder diffusion passage 5B of the ventilation passage block 4 as a drug outflow passage.
The opening of the chemical powder outflow passage 8 is a valve seat 8A on which a valve portion 25A of a needle valve 25, which will be described later, is seated.

Reference numeral 9 denotes a capsule holder attached to the inhalation head 1 and serving as a medicine container. The capsule holder 9 is
It is composed of the holder mounting portion 2B of the block housing cylinder 2 described above, the upper capsule hole and the like, and the fixed member 10 and the movable member 15 which will be described later.

Reference numeral 10 denotes a fixed member that supports the movable member 15 so as to be movable in the vertical direction. The fixed member 10 is provided in an outer cylindrical portion 10A formed in a stepped cylindrical shape and in the outer cylindrical portion 10A. The inner cylinder portion 10B, the bottom portion 10C that closes the lower end side of the outer cylinder portion 10A, and the valve opening amount regulating portion 1 that forms the bottom portion of the inner cylinder portion 10B and regulates the valve opening amount of the supply valve 19 described later.
0D and the like to form a bottomed double cylinder, and the bottom portion 10
An air supply passage 11 is formed in C. An air inflow chamber 13 communicating with the capsule housing chamber 7 side is formed between the cylindrical portions 10A and 10B through communication holes 12 formed in the inner cylindrical portion 10B in the radial direction. Part 10
On the inner peripheral surface of A, an engagement groove 14 with which a detent pin 18 described later is engaged is formed extending vertically.

Reference numeral 15 denotes a movable member provided in the outer cylindrical portion 10A of the fixed member 10 so as to be vertically movable. The movable member 15 is provided on the cylindrical portion 15A and the lower end side of the cylindrical portion 15A. A large-diameter bottom portion 15B held in the outer tubular portion 10A so as to be vertically movable, a small-diameter projection 15C extending from the center of the bottom portion 15B into the inner tubular portion 10B, and the tubular portion 1
5A is composed of a male screw 15D engraved on the outer peripheral surface over the entire circumference, and the inside of the cylindrical portion 15A is a lower capsule hole 16 that constitutes a capsule housing chamber 7 together with an upper capsule hole 6. . Further, the small-diameter protrusion 15C is provided with a pin insertion hole 17 which penetrates in the vertical direction and into which a first drilling pin 22 described later is inserted. Further, a detent pin 18 is formed on the outer peripheral side of the bottom portion 15B so as to project outward in the radial direction, and the detent pin 18 engages with an engagement groove 14 formed in the fixing member 10 to thereby fix the fixed portion. Member 1
The rotation of the movable member 15 with respect to the fixed member 10 is restricted while allowing the movable member 15 to move in the vertical direction with respect to 0.

Here, the movable member 15 becomes movable vertically along the outer cylindrical portion 10A of the fixed member 10, and when the male screw 15D is screwed onto the female screw 2C on the suction head 1 side, the fixed member is fixed. Since the rotation with respect to 10 is restricted by the detent pin 18, the suction head 1
Automatically pulled up to the side.

Reference numeral 19 is a supply valve provided in the air inflow chamber 13. The supply valve 19 opens and closes the air supply passage 11, and opens when air is supplied from a pump portion 20 described later. When sucking air into the pump portion 20, it is seated to close the air supply passage 11.

Reference numeral 20 denotes a pump portion attached to the capsule holder 9, and the pump portion 20 is made of an elastic rubber material in the shape of a bottomed cylinder composed of a tubular portion 20A and a bottom portion 20B. The opening side of 20A is airtightly attached to the outer cylindrical portion 10A of the fixing member 10. Then, the pump portion 20 supplies air to the capsule housing chamber 7 of the capsule holder 9 by crushing the cylindrical portion 20A.

Reference numeral 21 denotes a suction valve provided on the bottom portion 20B of the pump portion 20. The suction valve 21 is located at the central portion and has a suction passage 21A communicating with the inside of the pump portion 20, and the suction passage 2
1A is generally constituted by a valve body 21B for opening and closing the valve 1A. The valve body 21B is closed when air is supplied from the pump portion 20 and opened when air is sucked into the pump portion 20 from the outside. It has become.

Reference numeral 22 denotes a first hole-drilling pin provided on the fixing member 10. The first hole-drilling pin 22 has its base end side fixed to the valve-opening amount regulating portion 10D and its tip end side through a pin insertion hole 17. Is formed so as to protrude toward the lower capsule hole 16 side, and its tip is sharply formed. The tip of the first piercing pin 22 projects into the lower capsule hole 16 when the movable member 15 is located on the pump section 20 side (lower side). By pushing the capsule K into the lower capsule hole 16, an air inflow hole H1 (shown in FIGS. 2 and 3) can be formed in the capsule K. On the other hand, when the movable member 15 is located on the suction head 1 side (upper side), the tip end is retracted into the pin insertion hole 17 and is pulled out from the air inflow hole H1.

Next, reference numeral 23 denotes a punching tool provided in the suction head 1 for drilling an air outflow hole H2 in the capsule K in the capsule accommodating chamber 7. The punching tool 23 is a guide tube for the block accommodating cylinder 2. A pressing member 24 movably supported in the portion 2A, a needle valve 25 having a proximal end side fixed to the pressing member 24, and a distal end extending downward through the valve body insertion holes 2D and 4A, and the pressing member 24. And the block housing cylinder 2, and the needle valve 25 is provided via the pressing member 24.
A spring member 26 for urging the upward direction (separation direction),
The seal member 27 is located on the outer peripheral side of the needle valve 25 and is fitted into the valve body insertion hole 4A. The seal member 27 seals the gap with the needle valve 25 in a powder-tight manner. At the same time, the initial positions of the pressing member 24 and the needle valve 25 are defined by abutting the valve portion 25A.

Here, the needle valve 25 is formed as a long pin extending in the vertical direction, and the valve seat 8A of the chemical powder outflow passage 8 formed in the ventilation passage block 4 is formed on the tip end side thereof.
A conical valve portion 25A that is seated on and off is formed.
Further, the needle valve 25 is integrally provided with a second piercing pin 25B which projects further downward from the valve portion 25A, and the second piercing pin 25B is provided with the valve portion 25A as shown in FIG. The tip of the second piercing pin 25B extends into the upper capsule hole 6 while being seated on the valve seat 8A. Furthermore, above the valve portion 25A, a triangular engagement piece 25C that engages with an engagement pin 29A of an interlocking rod 29, which will be described later, in a disengageable manner is provided so as to protrude toward one side.

Then, as shown in FIG. 2, the punching tool 23 pushes the pressing member 24 into the guide cylindrical portion 2A against the urging force of the spring member 26, thereby opening the valve portion 25A of the needle valve 25. The powder outflow passage 8 is seated on the seat 8A to close the drug outflow passage 8, and the air outflow hole H2 is formed in the capsule K housed in the capsule housing chamber 7 by the second piercing pin 25B. When inhaling the drug powder, the pressing member 24 is returned to the initial position shown in FIG. 3 by the spring member 26, the valve portion 25A of the needle valve 25 is separated from the valve seat 8A, and the drug powder outflow passage 8 is ventilated. It is designed to communicate with 5.

Reference numeral 28 denotes a flap valve provided at the other end of the block accommodating cylinder 2, and the flap valve 28 is formed in a disk shape that substantially closes the inside of the block accommodating cylinder 2 in the closed state shown in FIG. And a mounting piece portion 28B that is provided so as to project radially outward from the upper end portion of the valve body 28A and is rotatably pin-coupled to the block housing cylinder 2 A connecting pin 29B, which will be described later, is provided on the piece 28B.
An elongated hole 28C is formed to connect with each other. When the patient inhales air from the suction port 3, the flap valve 28 has a negative pressure inside the suction port 3, so that the valve body 28A rotates in the direction of arrow A due to the pressure difference, and the flap valve 28 is rotated in the direction of arrow A in FIG. Open the valve as shown in to allow the air containing the medicinal powder to flow. On the other hand, when the patient coughs while holding the suction port 3 and blows air into the suction port 3 to reverse the flow, the valve is closed as shown in FIG. Prevent backflow to the 5 side.

29 is a rod sliding groove 2 of the block housing cylinder 2.
The interlocking rod attached to E is shown.
Is formed in the shape of a rectangular rod that slides along the rod slide groove 2E, and an engaging pin 29A that engages with the engaging piece 25C of the needle valve 25 in a disengageable manner is provided at one end side thereof. A connecting pin 29 for connecting to the elongated hole 28C of the flap valve 28 on the end side
B is protruded.

The interlocking rod 29 thus constructed is
In the closed state of the flap valve 28, the engagement pin 29A is arranged at the engagement position with the engagement piece 25C of the needle valve 25 as shown in FIG. 2, and the valve body 28A of the flap valve 28 is opened in the arrow A direction. When the valve is opened and the mounting piece portion 28B is rotated in the direction of arrow A ', it is interlocked with this valve opening operation, and as shown in FIG.
By moving in the direction, the engagement pin 29A is arranged at the engagement / disengagement position with the engagement piece 25C of the needle valve 25.

The inhalation-type medication device according to the present embodiment has the above-described structure. Next, the preparation operation until the patient inhales the medicinal powder, the flow of air and the medicinal powder in the medication device at the time of inhalation, etc. Will be described.

First, the capsule K is placed in the drug dispenser,
A preparatory operation until a hole is made in the capsule K will be described.

First, by positioning the movable member 15 toward the pump portion 20 side, the tip of the first piercing pin 22 is made to project into the lower capsule hole 16, and in this state the capsule K is in the lower capsule. By pushing into the hole 16, the first piercing pin 22 is pierced at the lower end portion of the capsule K, and the air inflow hole H1 is bored in the capsule K.

Next, in order to assemble the suction head 1 and the capsule holder 9, the male screw 15D of the movable member 15 is screwed onto the female screw 2C of the block housing cylinder 2. As a result, the movable member 15 moves to the suction head 1 side, so that the capsule K is held in the capsule housing chamber 7 while being slightly pressed in the axial direction. Further, at this time, the first piercing pin 22 having the air inflow hole H1 formed in the capsule K is removed, and the air inflow chamber 13 is opened in the capsule K via the air inflow hole H1, the pin insertion hole 17, and each communication hole 12. Communicate with.

In this state, the capsule K has an air outflow hole H2.
In order to form the above, the pressing member 24 of the punching tool 23 is pushed into the guide tube portion 2A of the block housing tube 2 to remove the needle valve 2
By moving 5 downwardly, as shown in FIG. 2, an air outflow hole H2 communicating with the drug powder outflow passage 8 is formed in the upper end portion of the capsule K by the second boring pin 25B of the needle valve 25.

At this time, since the valve body 28A of the flap valve 28 is closed, the engagement pin 29A of the interlocking rod 29 engages with the engagement piece 25C of the needle valve 25,
The needle valve 25 resists the spring member 26 and its valve portion 2
5A is held in a state of being seated on the valve seat 8A of the powder outflow passage 8. This completes the medication preparation operation.

Next, the inhalation operation when the patient inhales the medicinal powder after making the hole in the capsule K will be described.

First, the patient squeezes the pump portion 20 while holding the suction port 3. At this time, the needle valve 25
Since the drug powder outflow passage 8 is closed by the valve portion 25A, the air from the capsule holder 9 does not flow into the ventilation passage 5.

In this state, when the patient inhales, the flap valve 28 rotates in the direction of arrow A and opens as shown in FIG. 3, and the air flowing in from each inflow side air passage 5A of the air passage 5 is opened. Becomes a turbulent flow in the drug powder diffusion passage 5B and flows out from each outflow side air passage 5C to the suction port 3 side. Then, at this time, the interlocking rod 29 is interlocked with the valve opening operation of the flap valve 28, and is indicated by the arrow B
Direction, the engagement between the engagement piece 25C of the needle valve 25 and the engagement pin 29A is released, so that the needle valve 25 is moved upward together with the pressing member 24 by the urging force of the spring member 26, and the initial position. And the valve portion 25A of the needle valve 25 is separated from the valve seat 8A, and the drug powder outflow passage 8 becomes the ventilation passage 5
Will be in communication with.

Therefore, at the same time when the flap valve 28 is opened,
The air from the pump unit 20 flows into the capsule K to agitate the drug powder, and the agitated drug powder is discharged from the drug powder outflow passage 8 into the drug powder diffusion passage 5B of the ventilation passage 5. In the mouth of the patient who is able to supply the drug powder that has flowed out of the capsule K together with the air flowing through the ventilation passage 5 to the inhalation port 3 side and inhale the breath,
It can reach the lungs via the trachea.

On the other hand, when the patient coughs while holding the suction port 3 and blows air into the suction port 3 to cause reverse flow, the flap valve 28 is closed to prevent the reverse flow of air. Has become.

Thus, according to the present embodiment, the flap valve 28 that opens by the inhalation operation of the patient and the needle valve 25 that opens and closes the drug powder outflow passage 8 are interlocked with each other through the interlocking rod 29, so that the flap valve Since the needle valve 25 can be separated from the valve seat 8A of the drug powder outflow passage 8 in association with the opening of the valve 28 and the drug powder outflow passage 8 can be communicated with the ventilation passage 5, it is possible to inhale the air of the patient. The drug powder in the capsule K can be caused to flow out into the ventilation path 5 in synchronization with the air from the pump unit 20.

As a result, even when the pump unit 20 is used, it is possible to prevent the patient from coughing or the medicinal powder flowing back through the air passage 5 as described in the prior art. In addition, the prescribed amount of the medicinal powder can be surely inhaled, and the efficacy of the medicinal powder can be enhanced and the reliability can be improved.

Further, the chemical powder in the capsule K is agitated by the air from the pump section 20 and is caused to flow out from the chemical powder outflow passage 8 into the ventilation passage 5, and the chemical powder is diffused in the chemical powder diffusion passage 5B of the ventilation passage 5. Is further diffused by turbulence,
The drug powder can be uniformly diffused in the air, and the dosing efficiency can be improved.

A second hole forming pin 25B is formed at the tip of the needle valve 25, and at the same time as the needle valve 25 closes the chemical powder outflow passage 8, the second hole forming pin 25B causes an air outflow hole in the capsule K. Since H2 is formed, the administration procedure can be omitted by omitting the administration procedure, and the configuration can be simplified.

Further, since the flap valve 28 is provided at the other end of the block accommodating cylinder 2, when the patient coughs while holding the suction port 3 and blows air to the suction port 3 to cause reverse flow. , The flap valve 28 is closed to allow air to pass through the air passage 5.
It is possible to prevent backflow to the side and prevent the chemical powder from being discharged to the outside through the ventilation path 5.

Next, FIGS. 4 and 5 show a second embodiment of the present invention. The feature of this embodiment is that the needle valve and flap valve are interlocked via a rack and a pinion. In this embodiment, the same components as those in the above-described first embodiment are denoted by the same reference numerals, and description thereof will be omitted.

In the figure, 31 indicates the suction head according to the present embodiment, and the suction head 31 is a block storage cylinder 3 described later.
2, the suction port 33, and the ventilation path block 34.

The reference numeral 32 designates a block accommodating cylinder which is located on one side of the suction head 31 and is formed into a substantially cylindrical shape in which the air passage block 34 is inserted and held. The block accommodating cylinder 32 has a shaft on the upper side thereof. A valve body insertion hole 32A which is located at the center in the direction and through which a valve rod 43A of a needle valve 43 described later is inserted, and a mounting piece portion 45B of a flap valve 45 described later that is separated from the valve body insertion hole 32A to the other side. Valve body mounting hole 32B
And a rod slide groove 32C extending in the axial direction so as to pass through the valve body insertion hole 32A and the valve body mounting hole 32B. Further, a holder mounting portion 32D forming a part of the capsule holder 9 is provided on the lower side of the block housing cylinder 32 so as to project downward, and a lower end portion of the holder mounting portion 32D has a cylindrical shape.
A female screw 32E that is screwed into the male screw 15D of the movable member 15 is engraved on the inner peripheral side thereof. Further, a suction port 33 is integrally formed on the other side of the block housing cylinder 32.

Reference numeral 34 denotes a substantially columnar ventilation path block inserted into the block accommodating cylinder 32, and the ventilation path block 3
In the same manner as the ventilation passage block 4 described in the first embodiment, the auxiliary passage 4 includes an inflow passage 35A, 35A, a chemical powder diffusion passage 35B, and an outflow passage 35C, 35C and an auxiliary passage 35. A ventilation path (not shown) is provided. In addition, in the ventilation path block 34, the block housing cylinder 3
A valve body insertion hole 34A communicating with the drug powder diffusion passage 35B is formed so as to be coaxial with the second valve body insertion hole 32A.

Reference numeral 36 denotes an upper capsule hole formed in the center of the block accommodating cylinder 32 on the lower side of the holder mounting portion 32D. The upper capsule hole 36, together with the lower capsule hole 16, constitutes a capsule accommodating chamber 37 which constitutes a medicine accommodating chamber. It is a thing. Further, in the upper center of the upper capsule hole 36, a drug powder outflow passage 38 as a drug outflow passage that connects the capsule housing 37 and the drug powder diffusion passage 35B of the air passage block 34 is provided. 34, the opening of the drug powder outflow passage 38 is formed in the valve portion 43B of the needle valve 43.
Is a valve seat 38A for seating on and off. Further, a second drilling pin 4 described later is provided on the outer peripheral side of the lower end of the chemical powder outflow passage 38.
A pin mounting hole 39 into which 0 or the like is mounted is formed.

Reference numeral 40 designates a second hole provided in the pin mounting hole 39.
The second drilling pin 40 is fixed at its base end side to a sliding member 41 slidably provided along the pin mounting hole 39, and at its tip end side through a seal member 42. It is possible to project into the capsule hole 36. Then, the second piercing pin 40 slides the sliding member 41 downward through an external operation plate (not shown), so that the distal end of the second piercing pin 40 causes an air outflow hole into the capsule K in the capsule housing chamber 37. It forms H2.

Next, reference numeral 43 denotes a needle valve provided on the suction head 31. The needle valve 43 is provided with a long valve rod 43A extending vertically and a lower end portion of the valve rod 43A. The conical valve portion 43B which is seated on and away from the valve seat 38A of the chemical powder outflow passage 38 is roughly configured, and the valve rod 43A is inserted through the valve body insertion holes 32A and 34A, and the seal member 44 seals the powder tightly. It is supported so that it can move up and down. Further, the needle valve 43 is formed with a second rack 49 which will be described later and is located above the valve rod 43A.

Reference numeral 45 designates a flap valve provided between the block housing cylinder 32 and the suction port 33. The flap valve 45
Is a disc-shaped valve body 45A that substantially closes the inside of the block housing cylinder 32 in a closed state, and is formed to project radially outward from the upper end of the valve body 45A. The mounting piece portion 45B is rotatably pin-connected to the valve body mounting hole 32B, and the tip end side of the mounting piece portion 45B projects from the valve body mounting hole 32B to the outside of the block housing cylinder 32. Further, a long hole 45C is formed in the mounting piece portion 45B, and a connecting pin 47A described later is connected to the long hole 45C. Then, the flap valve 45 is
Similar to the flap valve 28 of the first embodiment, when the patient sucks air from the suction port 3, the inside of the suction port 33 becomes a negative pressure, so that the valve element 45A is in the direction of arrow C due to the pressure difference. The valve is turned to open as shown in FIG. 5, and the air containing the drug powder is allowed to flow. On the other hand, when the patient coughs while holding the suction port 33 and blows out air into the suction port 33 to reverse the flow, the patient rotates in the direction of the arrow D to close the valve as shown in FIG. Prevents backflow of air.

Reference numeral 46 denotes an interlocking mechanism provided on the upper side of the block accommodating cylinder 32. The interlocking mechanism 46 is composed of a moving rod 47, a first rack 48, a second rack 49, a pinion 50, etc. which will be described later. There is.

Reference numeral 47 denotes a moving rod mounted in the rod sliding groove 32C, and the moving rod 47 is the rod sliding groove 3C.
A connecting pin 47A, which is formed in a rectangular rod shape that slides in the E direction or the F direction along arrow 2C, is connected to the elongated hole 45C of the flap valve 45 at the other end side. A first rack 48 is integrally formed on the upper surface on the other end side of the moving rod 47 so as to be continuous in the moving direction.

Reference numeral 49 denotes a second rack formed on the other surface of the needle valve 43 on the upper side of the valve rod 43A.
Are integrally formed so as to be continuous in the vertical direction of the valve rod 43A.

Reference numeral 50 denotes a pinion rotatably arranged on the other side of the needle valve 43 above the moving rod 47. The pinion 50 includes a small diameter gear 50A meshing with the first rack 48 and the small diameter gear 50A. A large-diameter gear 50B that is provided coaxially with 50A and that meshes with the second rack 49 is integrally fixed.

In the interlocking mechanism 46 thus constructed, when the flap valve 45 is closed, the moving rod 47 is moved in the arrow F direction via the connecting pin 47A as shown in FIG. Therefore, the valve portion 43B of the needle valve 43 is seated on the valve seat 38A to close the drug powder outflow passage 38.
When the valve body 45A of the flap valve 45 opens in the arrow C direction, the mounting piece 45B rotates in the arrow C'direction, and the moving rod 47 moves in the arrow E direction via the connecting pin 47A. Since it moves, the large diameter gear 50B is indicated by the arrow G along with the small diameter gear 50A of the pinion 50 meshing with the first rack 48.
Rotate in the direction. As a result, the needle valve 43 is moved upward through the second rack 49 that meshes with the large diameter gear 50B, and as shown in FIG.
3B separates from the valve seat 38A, and the chemical powder outflow passage 38 communicates with the ventilation passage 35. On the other hand, when the patient coughs while holding the suction port 33 and causes the air to flow back into the suction port 33, the valve body 45A of the flap valve 45 rotates in the direction of the arrow D and the mounting piece portion is rotated. 45B rotates in the arrow D'direction, the moving rod 47 moves in the arrow F direction, and the pinion 50 rotates in the arrow H direction, so that the needle valve 43 moves downward as shown in FIG. The valve portion 43B is seated on the valve seat 38A to close the chemical powder outflow passage 38.

Reference numeral 51 denotes a cover fixed to the block housing cylinder 32 for protecting the interlocking mechanism 46.

Thus, in this embodiment having the above-mentioned structure, it is possible to obtain substantially the same effect as that of the first embodiment described above, but in particular, in this embodiment, the opening / closing valve of the flap valve 45 is opened. By opening and closing the drug powder outflow passage 38 with the needle valve 43 in synchronization with, the needle valve 43 can close the drug powder outflow passage 38 when the flap valve 45 is closed due to coughing of the patient. Even when the powder inhaling operation is interrupted, it is possible to prevent the drug powder in the capsule K from being discharged to the outside through the drug powder outflow passage 38 and the ventilation passage 35 by the air from the pump unit 20, and the drug is again inhaled. At times, a prescribed amount of drug powder in the capsule K can be inhaled.

Next, FIG. 6 shows a third embodiment of the present invention. The feature of this embodiment is that the ventilation passage block is eliminated and the inner peripheral side of the cylindrical body is used as the ventilation passage. The purpose is to make the medicinal powder flow out. In this embodiment, the same reference numerals are given to the same components as those in the first embodiment described above,
The description is omitted.

In the figure, reference numeral 61 denotes an inhalation head according to this embodiment, which is composed of a cylindrical body 62, an inhalation port 64 and the like, which will be described later.

Reference numeral 62 designates a substantially cylindrical tubular body which is provided on one side of the suction head 1 and whose inner peripheral side serves as a ventilation passage 63. The outer peripheral side of the cylindrical body 62 is provided with a punching tool 69 which will be described later. A guide cylinder portion 62A that movably supports the pressing member 70 and a holder attachment portion 62B that is located on the opposite side of the guide cylinder portion 62A and forms a part of the capsule holder 9 are provided to project radially outward. Further, the holder mounting portion 62B is formed in a cylindrical shape,
A female screw 62C that is screwed into the male screw 15D of the movable member 15 is engraved on the inner peripheral side thereof. Further, in the tubular body 62, a valve body insertion hole 62D that is located inside the guide tubular portion 62A and penetrates in the radial direction, and an axial direction of the tubular body 62 that intersects the valve body insertion hole 62D. Rod sliding groove 62 that extends
E is formed.

Reference numeral 64 denotes a cylindrical suction port provided on the other side of the tubular body 62, and the suction port 64 is detachably attached to the other end side of the tubular body 62.

Reference numeral 65 denotes an upper capsule hole formed in the center of the holder mounting portion 62B of the tubular body 62.
Reference numeral 5 constitutes a capsule accommodating chamber 66 which is a medicine accommodating chamber together with the lower capsule hole 16.

Reference numeral 67 denotes a chemical powder ejection nozzle provided in the upper center of the upper capsule hole 65, and the chemical powder ejection nozzle 67 is provided.
Has a base end fitted into a tubular body 62 and a tip end provided with an air passage 63.
It protrudes into. Further, the inside of the medicine powder ejection nozzle 67 serves as a medicine powder outflow path 68 as a medicine outflow path that connects the capsule storage chamber 66 and the ventilation path 63, and the opening of the medicine powder outflow path 68 is a valve of a needle valve 71 described later. The portion 71A is a valve seat 68A on which the seat 71A is seated.

69 is a capsule K in the capsule accommodating chamber 66.
The punching tool according to the present embodiment provided in the suction head 61 to open the air outflow hole H2 is shown in FIG.
Is composed of a pressing member 70, a needle valve 71, a spring member 72, a seal member 73, and the like, which are substantially the same as the punching tool 23 described in the first embodiment.
71 A of valve parts, the 2nd drilling pin 71B, and the engaging piece 71.
C is provided. However, the hole making tool 69 of the present embodiment
Is different from that according to the first embodiment in that the needle valve 71 and the spring member 72 are elongated in the vertical direction as the stroke is expanded.

Reference numeral 74 denotes a flap valve according to the present embodiment provided at the other end of the tubular body 62, and the flap valve 74 is
Similar to the flap valve 28 described in the first embodiment, a disc-shaped valve body 74A and a mounting piece portion 74B protruding from the valve body 74A and rotatably pin-coupled to the cylindrical body 62. The mounting piece portion 74B is provided with a long hole 74C to which a connecting pin 75B described later is connected.

Reference numeral 75 denotes an interlocking rod according to the present embodiment which is mounted in the rod sliding groove 62E of the tubular body 62. The interlocking rod 75 is similar to the interlocking rod 29 according to the first embodiment.
An engaging pin 75A is formed in a rectangular rod shape that slides along the rod sliding groove 62E, and an engaging pin 75A that engages with an engaging piece 71C of the needle valve 71 in a disengageable manner is projectingly provided on one end side thereof and the other end side thereof. Is a connecting pin 75 for connecting to the long hole 74C of the flap valve 74.
B is protruded.

Thus, in this embodiment having the above-mentioned structure, it is possible to obtain substantially the same operational effects as the above-mentioned first embodiment. Since the ventilation passage block used in (1) can be eliminated, the structure of the medication device can be simplified, the workability such as cleaning work can be improved, and the assembling workability can be improved. Moreover, by changing the capsule holder 9 or the like to one that discharges a liquid medicine, it can be used to administer a liquid medicine, and the range of application can be expanded.

Next, FIG. 7 shows a fourth embodiment of the present invention, which is characterized in that the ventilation passage is formed in a venturi shape. In this embodiment, the same components as those in the above-described first embodiment are denoted by the same reference numerals, and description thereof will be omitted.

In the figure, 81 is the suction head according to this embodiment,
Reference numeral 82 denotes a tubular body of the present embodiment provided on one side of the suction head 81, and a guide tubular portion 82A and a holder mounting portion 82B project radially outward on the outer peripheral side of the tubular body 82. A female screw 82C is engraved on the inner peripheral side of the holder mounting portion 82B. In addition, the tubular body 82 has a valve body insertion hole 82.
D and a rod sliding groove 82E are formed.

Reference numeral 83 is a ventilation passage 83 according to the present embodiment formed on the inner peripheral side of the tubular body 82. The ventilation passage 83 has a diameter-reducing passage 83A in which one inflow side is reduced in diameter toward the other side. Therefore, the middle portion is a chemical powder ejection passage 83B through which chemical powder is ejected, and the other side, which is the outflow side, is a diameter expansion passage 83C that expands in diameter toward the other side.

Reference numeral 84 denotes a medicine powder ejection nozzle fixed to the cylindrical body 82 so as to project into the medicine powder ejection passage 83B of the ventilation passage 83. Inside the medicine powder ejection nozzle 84, the capsule storage chamber 7 and the ventilation passage 83 are provided. And the valve portion 25A of the needle valve 25 is seated on and off.

Further, 86 is the rod sliding groove 8 of the tubular body 82.
The interlocking rod mounted on the 2E, and the interlocking rod 86 has the same structure as the interlocking rod 29 according to the first embodiment.
An engaging pin 86A and a connecting pin 86B are provided. However, the interlocking rod 86 is formed longer than the interlocking rod 29 according to the first embodiment.

Thus, in this embodiment having such a structure, it is possible to obtain substantially the same effects as the above-described third embodiment. However, in particular, in this embodiment, the ventilation passage 83 has a reduced diameter. Since the venturi is formed from the passage 83A, the drug powder ejection passage 83B, and the diameter-expanding passage 83C, the drug powder flowing out to the drug powder ejection passage 83B can be effectively diffused at a high flow rate, and the dosing efficiency is improved. can do.

In each of the above embodiments, the flap valve 2
The case where the valve bodies 28A, 45A, 74A of 8, 45, 74 are formed in a substantially circular shape has been illustrated, but the flap valve is appropriately set in shape according to the shape of the suction passage, and is not limited to a circular shape. Absent.

Further, in the first and second embodiments, the inflow side air passages 5A and 35A and the outflow side air passages 5C and 35C of the air passages 5 and 35 are formed two by two. However, the number of inflow side and outflow side air passages may be adjusted to one, four, or the like according to the suction force (vital capacity) of the patient.

Furthermore, in each of the above embodiments, the capsule K filled with the drug powder is contained in the capsule containing chambers 7, 37, 66, but instead of this, for example, the drug is placed in the drug powder containing chamber. The powder may be directly filled and the medicinal powder may be inhaled.

[0090]

As described in detail above, according to the first aspect of the invention, the first valve element closes the gap between the air passage and the drug container, and then the pump portion is pressed. By sucking air through the suction port, the second valve body is opened due to the pressure difference at the time of suction, air is circulated from the air passage to the suction port side, and the second valve body is opened by the interlocking member. The first valve body is opened in association with the valve so that the air passage and the medicine container are in communication with each other. As a result, the air discharged from the pump portion can flow into the medicine container, and the air can agitate the medicine in the medicine container and eject the air into the ventilation passage. Can be inhaled. As a result, even when using the pump section,
As described in the prior art, it is possible to prevent the patient from coughing or the drug from flowing backwards through the air passage, so that it is possible to reliably inhale the prescribed amount of the drug even for children and the elderly who have weak suction power. Efficacy can be increased and reliability can be improved.

According to the second aspect of the invention, the needle valve is seated in the medicine outflow passage against the spring member while the flap valve is closed, and the needle valve is held closed by the interlocking rod. After that, the pump is pressed, and in this state the patient draws in the air through the suction port, creating a negative pressure inside the suction port and opening the flap valve due to the pressure difference, causing air to flow from the ventilation passage to the suction port side. While flowing, the interlocking rod can be moved in conjunction with the valve opening operation of the flap valve, and the needle valve can be opened by the urging force of the spring member to connect the medicine outflow passage to the ventilation passage. As a result, the air discharged from the pump portion can flow into the medicine containing chamber, and the air can agitate the medicine in the medicine containing portion and eject it from the medicine outflow passage to the ventilation passage. Chemicals can be inhaled with circulating air. As a result, even when the pump unit is used, it is possible to prevent the patient from coughing or the drug from flowing backwards through the air passage as described in the prior art, so that the prescribed amount of the drug can be used even for children and the elderly who have a weak suction force. Can be surely inhaled, the efficacy of the drug can be enhanced, and the reliability can be improved. Also, if the patient coughs with the mouth held, the flap valve can be closed to close the mouth and prevent backflow of air, so the drug is released to the outside through the ventilation passage. Can be prevented.

According to the third aspect of the present invention, the needle valve is moved in a state where the capsule is accommodated in the medicine accommodating portion, so that the hole is provided in the tip side of the needle valve to cause the medicine to flow out into the capsule. Since the communicating drug outflow hole can be easily formed, the administration procedure can be omitted and the operation can be facilitated, and the configuration can be simplified.

According to the fourth aspect of the present invention, the interlocking mechanism interlocks with the closing of the flap valve to close the needle valve, and then presses the pump portion. In this state, the patient holds the intake port and blows air. By sucking, the suction port becomes negative pressure and the flap valve opens due to the pressure difference, and air flows from the ventilation passage to the suction port side, and the interlocking mechanism interlocks with the opening operation of the flap valve, and the needle valve Open the valve to connect the chemical outflow passage to the ventilation passage. As a result, the air discharged from the pump portion can flow into the medicine container, and the air can agitate the medicine in the medicine container and eject it from the medicine outflow passage to the ventilation passage. Chemicals can be inhaled with circulating air. As a result, even when the pump unit is used, it is possible to prevent the patient from coughing or the drug from flowing backwards through the air passage as described in the prior art, so that the prescribed amount of the drug can be used even for children and the elderly who have a weak suction force. Can be surely inhaled, the efficacy of the drug can be enhanced, and the reliability can be improved. In addition, if the patient coughs while holding the suction port, the flap valve can be closed to block the suction port and prevent backflow of air.In addition, the needle valve blocks the drug outflow passage. Therefore, it is possible to prevent the medicine from flowing out from the medicine container.

According to the fifth aspect of the invention, when the flap valve is opened / closed, the movable rod is moved in the axial direction of the suction head in conjunction with the opening / closing operation of the flap valve, and the first rod is provided on the movable rod. The rack can rotate the pinion, and the needle valve can be opened and closed through the second rack that meshes with the pinion. Therefore, even if the drug suction operation is interrupted by coughing during the drug suction, the flap valve At the same time as the valve is closed, the drug outflow passage can be closed by the needle valve, and it is possible to prevent the air in the medicine storage unit from releasing the drug in the drug storage unit to the outside through the ventilation passage, and the prescribed amount of drug to the patient. Can be reliably inhaled.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing an inhalation-type medication device according to a first embodiment of the present invention.

FIG. 2 is an enlarged sectional view of a main part showing the suction head in FIG.

FIG. 3 is an enlarged cross-sectional view of an essential part seen from the same position as FIG. 2, showing a state in which the drug powder in the capsule is being inhaled.

FIG. 4 is an enlarged sectional view of an essential part showing an inhalation head of an inhalation-type medication device according to a second embodiment of the present invention.

FIG. 5 is an enlarged cross-sectional view of an essential part seen from the same position as in FIG. 4, showing a state of inhaling the drug powder in the capsule.

FIG. 6 is an enlarged sectional view of an essential part showing an inhalation head of an inhalation-type medication device according to a third embodiment of the present invention.

FIG. 7 is an enlarged sectional view of an essential part showing an inhalation head of an inhalation-type medication device according to a fourth embodiment of the present invention.

[Explanation of symbols]

 1, 31, 61, 81 Inhalation head 3, 33, 64 Inhalation port 5, 35, 63, 83 Ventilation path 7, 37, 66 Capsule storage chamber 8, 38, 68, 85 Chemical powder outflow path (drug outflow path) 9 Capsule holder (chemical storage unit) 20 Pump unit 25, 43, 71 Needle valve 25A, 43B, 71A Valve unit 25B, 71B Second hole making pin 26, 72 Spring member 28, 45, 74 Flap valve 29, 75, 86 Rod 46 Interlocking mechanism 47 Moving rod 48 First rack 49 Second rack 50 Pinion K Capsule H1 Air inlet hole H2 Air outlet hole

Continued on the front page (72) Inventor Kazunori Ishiseki 1370 Onna, Atsugi-shi, Kanagawa Prefecture Inside Unisex Jex Co., Ltd. (72) Inventor Yoshiyuki Tanizawa 1370 Onna, Atsugi-shi, Kanagawa Prefecture Inside Unisex Jex Co., Ltd. (72) Inventor Akira Yanagawa 5-3 Fujimigaoka, Tsuzuki-ku, Yokohama, Kanagawa

Claims (5)

[Claims] 1. A suction head having a suction port, the inside of which serves as a ventilation path, a medicine storage portion attached to the suction head, which communicates with the ventilation passage of the suction head, and a chemical storage portion facing the medicine storage portion. A pump part attached to the medicine containing part for supplying air, a first valve body provided in the suction head for opening and closing between the air passage and the medicine containing part, and provided in the suction head. A second valve body that opens when air is sucked in from the suction port and closes when air flows back to the suction port; and a first valve body and a second valve body. An inhalation-type medication device, which is provided between the second valve body and an interlocking member that interlocks with the second valve body to open the first valve body when the second valve body opens by an inhalation operation. 2. A suction head having a suction port, the inside of which serves as a ventilation path, a chemical storage portion attached to the suction head for storing a chemical therein, a ventilation path of the suction head and the chemical storage. And a pump section attached to the medicine storing section for supplying air to the medicine storing section, and a suction head, which opens and closes the medicine flowing path. Needle valve, a spring member for urging the needle valve in a direction away from the medicine outflow passage, and a suction member provided in the suction head, which opens when air is sucked from the suction port, and the suction port Is provided between the flap valve and the needle valve that closes when air flows back to the needle valve, and in the closed state of the flap valve, the needle valve is closed against the spring member. Hold the An inhalation-type medication device comprising an interlocking rod that interlocks the needle valve to open when the UP valve opens. 3. The inhaler-type medication dispenser according to claim 2, wherein the needle valve has a distal end side provided with a piercing pin for piercing a drug outflow hole in the capsule housed in the drug container. 4. A suction head having a suction port, the inside of which serves as a ventilation passage, a medicine storage portion attached to the suction head for storing a medicine therein, a ventilation passage of the suction head, and the medicine storage. And a pump section attached to the medicine storing section for supplying air to the medicine storing section, and a suction head, which opens and closes the medicine flowing path. Needle valve, a spring member for urging the needle valve in a direction away from the medicine outflow passage, and a suction member provided in the suction head, which opens when air is sucked from the suction port, and the suction port A flap valve that closes when air flows backward to the needle valve, and a linkage mechanism that is provided between the needle valve and the flap valve and that opens and closes the needle valve in conjunction with the opening and closing operation of the flap valve. Inhalation type medication device. 5. The interlocking mechanism is provided with a moving rod that moves in the axial direction of the suction head in conjunction with the opening / closing operation of the flap valve, and a first rod that is continuous in the moving direction of the moving rod. The rack, the second rack provided so as to be continuous in the moving direction of the needle valve, and the pinion that meshes with the first rack and the second rack, according to claim 4. Inhalation-type medication device.