JP3011898B2 - Aspirator - Google Patents

Aspirator

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Publication number
JP3011898B2
JP3011898B2 JP9052264A JP5226497A JP3011898B2 JP 3011898 B2 JP3011898 B2 JP 3011898B2 JP 9052264 A JP9052264 A JP 9052264A JP 5226497 A JP5226497 A JP 5226497A JP 3011898 B2 JP3011898 B2 JP 3011898B2
Authority
JP
Japan
Prior art keywords
capsule
lower housing
chamber
side wall
capsule chamber
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
JP9052264A
Other languages
Japanese (ja)
Other versions
JPH10234827A (en
Inventor
茂 伊東
Original Assignee
フォルテ グロウ メディカル株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by フォルテ グロウ メディカル株式会社 filed Critical フォルテ グロウ メディカル株式会社
Priority to JP9052264A priority Critical patent/JP3011898B2/en
Publication of JPH10234827A publication Critical patent/JPH10234827A/en
Application granted granted Critical
Publication of JP3011898B2 publication Critical patent/JP3011898B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an inhaler capable of easily loading, unsealing, and sucking a capsule, and capable of uniformly mixing a powdered drug and an inhalation air flow.

[0002]

2. Description of the Related Art Generally, a powder medicine capsule inhaler is
The capsule is loaded into the inhalation flow path, opened in the flow path, and the powdered medicine in the capsule is mixed with the suction airflow to be sucked into the patient's trachea. In this case, since it is desired to uniformly mix the powdered medicine and the inhalation air flow in order to improve the therapeutic effect, various improvements have been made conventionally.

As one of them, for example, Japanese Patent Publication No. 5-79
There is an "inhaler" according to the invention of No. 343. The inhaler main body 1100 has a concave lower housing 101 having a convex portion 101a in the center of an inner bottom through which an air inlet 103 passes vertically, and a mouthpiece 1 having a cylindrical portion 102a loosely fitted in the lower housing 101.
02, the lower end of the cylindrical portion 102a continuous with the mouthpiece 102 is loosely fitted to the convex portion 101a,
The space above the projection 101a is a capsule chamber 106.

The mouthpiece 102 and the lower housing 101
The spring 109 is sandwiched between them, and can be expanded and contracted within the elastic range of the spring 109. A button 104 having a puncture needle 111 is provided outside the lower housing 101 on the side of the capsule chamber 106 in a state of being lifted by a spring 105.

On the other hand, a through hole 112 is provided in the side wall of the cylindrical portion 102a constituting the capsule chamber 106.
The through-hole 112 matches the perforation needle 111 when the mouthpiece 102 is compressed against the spring 109 until the shoulder 110 of the lower housing 101 reaches the position indicated by the dashed line.

Accordingly, the mouthpiece 102 is moved to the lower housing 1
01, and the capsule K is housed in the cylindrical portion 102a. Then, the capsule K is loosely fitted to the lower housing 101 as described above, and the mouthpiece 102 is compressed against the spring 109 so that the puncture needle 111 is formed as described above. The capsule K in the capsule chamber 106 can be opened by pushing the button 104 against the spring 109 by aligning the through hole 112 with the through hole 112.

[0007] This opening opens two points near the end,
The hemispherical cap is not damaged. Then, after opening the capsule K, the finger pushing the button 104 is released, and after the compression of the mouthpiece 102 is released, when the user holds the mouthpiece 102 and sucks it, the capsule K is air-flowed. The valve 103 vibrates up and down while acting as a valve that closes or opens the inlet 103, so that the powder medicine in the capsule K can be scattered from the opening portion, and can be inhaled through the flow paths 107 and 108 in the air flow. ing. The flow path 107 has a rib shape, and is configured so as not to block the flow path when the capsule K rises.

[0008] A second method is disclosed in Japanese Patent Application Laid-Open No. 54-1447.
No. 97, there is a "powder drug inhaler". It comprises a capsule chamber 202 in which the powdered pharmaceutical capsule 224 can be stored rotatably about its short axis. Then, the capsule 224 is rotated by the air supply port 212 flowing along the side surface of the capsule chamber 202, and the powdered medicine is scattered and mixed by the centrifugal force to form a suction airflow.

[0009]

However, in the conventional inhaler disclosed in Japanese Patent Publication No. Hei 5-79343, the operations of loading, opening and suctioning the capsule are troublesome. That is, after the mouthpiece 102 is removed from the lower housing 101, the capsule K must be stored in the cylindrical portion 102a, and the spring 109 may be lost when the capsule K is removed. In addition, when the mouthpiece 102 is loosely fitted into the lower housing 101 in a predetermined manner, the lower end of the mouthpiece 102 has to be well fitted into a convex portion provided on the inner bottom surface of the lower housing 101, and the capsule K is opened. Pierced needle 111 and through hole 1
This is because 12 had to be matched.

In addition, the above-mentioned inhaler has a great disadvantage that the powdered medicine in the capsule is not uniformly and rapidly injected at the time of inhalation. That is, the vertical vibration of the capsule K is intermittent, and it is difficult to uniformly disperse the powder. It goes without saying that such a non-uniform mixture flow is therapeutically undesirable.

Furthermore, in the inhaler for powdered medicine disclosed in JP-A-54-144797, since the capsule is not rotationally symmetric with respect to the short axis, the rotation of the capsule is unstable, and the dispersion of the powder is uniform. It was difficult to form, and sometimes it became clumpy.

SUMMARY OF THE INVENTION In view of the above, the present invention provides a novel inhaler which is easy to load, open, and aspirate a capsule, and can uniformly and instantaneously mix the powdered medicine in the capsule with an inflowing air flow. It is intended to be.

[0013]

In order to achieve the above object, a suction device according to the present invention comprises an upper housing having a suction port, and a lower housing having a bottomed cylindrical capsule chamber capable of vertically storing a powdered pharmaceutical capsule. Enclose the housing with the suction port and the capsule
Hinged so that the Le chamber matching, opening the mosquito capsule through the side wall of the capsule chamber to the outside of said lower housing
And a hole provided on the lower surface of the lower housing, and a side wall of the capsule chamber, the capsule vertically housed in the capsule chamber.
One or a plurality of air passages oriented in the tangential direction were provided in a portion corresponding to the vicinity of the middle flank.

As a result of the above configuration, when the capsule is loaded, if the upper housing having the suction port is tilted down from the hinge, the bottomed cylindrical capsule chamber is exposed on the upper surface of the lower housing. Easy to load.

After the capsule is loaded, the upper casing having the suction port is returned to the original state, and the piercing means provided outside the lower casing is pushed, whereby the capsule is easily opened through the side wall of the capsule chamber. After that, it is only necessary to hold the suction port and perform suction.

The air flow sucked from the air inlet provided on the lower surface of the lower housing by this suction is on the side wall of the capsule chamber and at the middle of the capsule vertically housed in the capsule.
For flowing a tangential provided at positions corresponding to the vicinity to the capsule chamber from one or a plurality of air passages directed rotational force is applied in a state of standing mosquito flop cell <br/> Le.

For this reason, the capsule rotates at a high speed around the central axis in the longitudinal direction, radiates and diffuses the powdered medicine by centrifugal force, instantaneously mixes with the airflow around the capsule, and is rapidly guided to the suction port. It will be.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below based on embodiments shown in the accompanying drawings. FIG. 1 is a cross-sectional view of the aspirator of the present application, and FIG. 2 is an enlarged cross-sectional view when the capsule chamber is cut so that an air passage provided on a side wall thereof appears.

In FIG. 1, reference numeral 100 denotes a suction device of the present invention.
The present application suction device 100 includes an upper housing 4 having a suction port 3,
A lower housing 2 having a bottomed cylindrical capsule chamber 1 capable of vertically storing a powdered pharmaceutical capsule 7 is connected via a hinge portion 5, and a relatively light touch is provided at a portion opposed to the hinge portion 5. A locking means (for example, comprising a claw piece and its engaging groove) 6 is provided which can be disengaged with a click feeling.

On the outside of the lower housing 2, there is provided a piercing means 10 which penetrates the side wall of the capsule chamber 1 and opens the capsule 7 in the chamber. The piercing means 10 is urged outward by the action of a spring 11 loaded between the piercing means 10 and the side wall of the capsule chamber 1.
The puncture needle 9 implanted on the inner surface penetrates the side wall of the capsule chamber 1 so that the capsule 7 in the chamber can be opened. Thus, the perforating means 10 is opened after opening.
If the pressing force of the finger is released from zero, the spring 11 can return to the original position by the action of the spring 11.

An air intake 12 is provided on the lower surface of the lower housing 2. The air inlet 12 is formed in a mesh shape, and is configured so that a large amount of air can be taken in at once. The side wall of the capsule chamber 1 is provided with one or a plurality of (four, but not limited to, four at equal positions in the drawing) air passages 13 oriented in the tangential direction. That is, the air taken into the lower housing 2 from the air intake port 12 is injected into the capsule chamber from the side wall of the capsule chamber 1 through the ventilation path 13.

Here, the ventilation passage 13 is formed by a side wall of the capsule chamber.
Wherein the capsule is vertically housed in the capsule chamber.
The portion corresponding to the vicinity of the abdomen is provided so as to be directed in the tangential direction because the main direction of ventilation (tangential direction 7T) is the eddy current in the small space S between the capsule chamber 1 and the capsule 7 in the direction of the arrow. N to make N and capsules inside capsule room
Enable efficient rotation at high speed while standing upright
That's why . That is, as shown in FIG. 2, the central axis J of the vortex N is coincident with the longitudinal central axis of the capsule chamber 1 (the central axis of the capsule 7) J ', and the capsule 7 is made substantially upright. > Acts as a high-speed rotation force. Accordingly, the powdered medicine in the capsule is vigorously dispersed from the opened mouth and instantaneously uniformly mixed with the airflow to flow toward the suction port 3.

In the figure, reference numeral 8 denotes a ventilation network which also serves as a filter provided in a ventilation path 71 for removing perforated fragments of the capsule 7 and foreign substances which have flowed in with the air. The ceiling of the room 1 is constituted.

In order to suck the medicine from the powdered medicine capsule 7 into the organ using the suction device 100 of the present invention shown in the above embodiment, first, the upper housing 4 having the suction port 3 is tilted about the hinge part 5, The locking means 6 is disengaged, the upper surface of the lower housing 2 is exposed, and the bottomed cylindrical capsule chamber 1 is opened. Therefore, it is possible to load the capsule 7 in a state where the capsule 7 stands up from the mouth.

Next, when the upper housing 4 having the suction port 3 is returned to the original state, the locking means 6 is engaged. However, at this time, there is a slight click feeling, so that the engagement is ensured. I understand. Thereafter, if the punching means 10 provided on the outside of the lower housing 2 is strongly pressed by a finger, the capsule 7 is opened through the side wall of the capsule chamber 1. Completion of the opening can be sensed by transmitting the feeling at the moment when the capsule 1 is broken by the puncture needle 9 to the finger.

Thereafter, the user may hold the suction port 3 and perform suction. The air flow sucked from the air intake port 12 provided on the lower surface of the lower housing 2 by this suction is converted into one or a plurality of tangentially oriented ventilation paths 13 provided on the side wall of the capsule chamber 1.
It flows more into the capsule chamber and forms a vortex as described above. The capsule 7 raised by the vortex rotates at a high speed about the longitudinal central axis while rising to the suction port side.

As the capsule 7 rotates at a high speed in a substantially upright manner as described above, the powdered medicine is radiated and diffused by centrifugal force, and is instantaneously mixed with the eddy current around the capsule to form an air passage 7.
It is rapidly sucked into the suction port 3 through 1 and flows into the organ through the mouth of the suction person.

[0028]

As described above, the suction device according to the present invention is
An upper housing having a suction port and a lower housing having a bottomed cylindrical capsule chamber capable of vertically storing a powdered pharmaceutical capsule ,
It said suction port and said capsule chamber is hinged to match the perforation means for opening the mosquitoes capsule through the side wall of the capsule chamber to the outside of the lower housing is provided, and the lower housing An air intake port is provided on a lower surface, and a side wall of the capsule chamber,
It is characterized in that one or a plurality of air passages oriented in the tangential direction are provided in a portion corresponding to the vicinity of the middle of the capsule vertically stored in the capsule, so that the operations from loading, opening and suctioning the capsule are easy, and Capsule is almost upright during suction
Since it is rotated at high speed as it is and the powdered medicine and air are uniformly dispersed, an excellent effect that a good therapeutic effect can be obtained can be obtained.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of the present suction device.

FIG. 2 is an enlarged cross-sectional view when the capsule chamber of the present suction device is cut so that an air passage provided in a side wall thereof is exposed.

FIG. 3 is a cross-sectional view of a conventional inhaler (Japanese Patent Publication No. Hei 5-79343).

FIG. 4 shows a conventional powder drug inhaler (Japanese Patent Application Laid-Open No. 54-14 / 1979).
No. 4797) is a sectional view showing a capsule storage chamber.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Capsule room 2 Lower housing 3 Suction port 4 Upper housing 5 Hinge part 6 Locking means 7 Powder medicine capsule 8 Ventilation net 9 Punch needle 10 Punching means 11 Spring 12 Air intake 13 Vent path 7T Tangential direction 71 Vent path

Claims (1)

    (57) [Claims]
  1. An upper housing having a suction port and a lower housing having a bottomed cylindrical capsule chamber capable of vertically storing a powdered pharmaceutical capsule , wherein the suction port matches the capsule chamber.
    With hinged on so that the perforation means for opening the mosquitoes capsule through the side wall of the capsule chamber to the outside of the lower housing is provided, and providing the air inlet on the lower surface of the lower housing, wherein The side wall of the capsule chamber ,
    Near the middle of the capsule vertically stored in the capsule room
    A suction device characterized in that one or a plurality of air passages directed in a tangential direction are provided at corresponding portions .
JP9052264A 1997-02-20 1997-02-20 Aspirator Expired - Fee Related JP3011898B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9052264A JP3011898B2 (en) 1997-02-20 1997-02-20 Aspirator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9052264A JP3011898B2 (en) 1997-02-20 1997-02-20 Aspirator

Publications (2)

Publication Number Publication Date
JPH10234827A JPH10234827A (en) 1998-09-08
JP3011898B2 true JP3011898B2 (en) 2000-02-21

Family

ID=12909920

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9052264A Expired - Fee Related JP3011898B2 (en) 1997-02-20 1997-02-20 Aspirator

Country Status (1)

Country Link
JP (1) JP3011898B2 (en)

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WO2019043639A1 (en) * 2017-08-31 2019-03-07 Pulinno Sp. Z O.O. An inhaler for a single-dose of dry powder and a method for adjusting an inhaler for single-dose of dry powder for delivering a specific medicament
WO2019101136A1 (en) * 2017-11-23 2019-05-31 正大天晴药业集团股份有限公司 Powder release device and method

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US7464706B2 (en) 1999-07-23 2008-12-16 Mannkind Corporation Unit dose cartridge and dry powder inhaler
US7305986B1 (en) 1999-07-23 2007-12-11 Mannkind Corporation Unit dose capsules for use in a dry powder inhaler
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US6994083B2 (en) 2001-12-21 2006-02-07 Trudell Medical International Nebulizer apparatus and method
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DE10345950A1 (en) 2003-10-02 2005-05-19 Pari GmbH Spezialisten für effektive Inhalation Inhalation therapy device with valve
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US8314106B2 (en) 2008-12-29 2012-11-20 Mannkind Corporation Substituted diketopiperazine analogs for use as drug delivery agents
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WO2019043639A1 (en) * 2017-08-31 2019-03-07 Pulinno Sp. Z O.O. An inhaler for a single-dose of dry powder and a method for adjusting an inhaler for single-dose of dry powder for delivering a specific medicament
WO2019101136A1 (en) * 2017-11-23 2019-05-31 正大天晴药业集团股份有限公司 Powder release device and method

Also Published As

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