CA2028363A1 - Aerosol medication holding chamber - Google Patents
Aerosol medication holding chamberInfo
- Publication number
- CA2028363A1 CA2028363A1 CA 2028363 CA2028363A CA2028363A1 CA 2028363 A1 CA2028363 A1 CA 2028363A1 CA 2028363 CA2028363 CA 2028363 CA 2028363 A CA2028363 A CA 2028363A CA 2028363 A1 CA2028363 A1 CA 2028363A1
- Authority
- CA
- Canada
- Prior art keywords
- aerosol
- medication
- aerosol medication
- medication dispenser
- 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.)
- Abandoned
Links
- 239000000443 aerosol Substances 0.000 title claims abstract description 45
- 229940079593 drug Drugs 0.000 title claims abstract description 38
- 239000003814 drug Substances 0.000 title claims abstract description 38
- 238000007789 sealing Methods 0.000 claims 2
- 244000043261 Hevea brasiliensis Species 0.000 claims 1
- 229920003052 natural elastomer Polymers 0.000 claims 1
- 229920001194 natural rubber Polymers 0.000 claims 1
- 229920003051 synthetic elastomer Polymers 0.000 claims 1
- 230000000241 respiratory effect Effects 0.000 description 2
- 208000006673 asthma Diseases 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
Landscapes
- Nozzles (AREA)
Abstract
A B S T R A C T
A device is provided for use with an aerosol medication dispenser which dispenses medication to be inhaled by a user thereof. The device has a first end adapted to receive an aerosol medication dispenser and a second end adapted to serve as a mouthpiece through which a user may inhale medication injected into said device. The two ends communicate with an aerosol holding chamber disposed therebetween that is of a size selected to hold a predetermined quantity of aerosol medication injected therein.
The device is characterized in that said chamber is constructed from at least two elements that engage each other telescopically and are movable relative to one another from a first, opened position to a second, closed position.
A device is provided for use with an aerosol medication dispenser which dispenses medication to be inhaled by a user thereof. The device has a first end adapted to receive an aerosol medication dispenser and a second end adapted to serve as a mouthpiece through which a user may inhale medication injected into said device. The two ends communicate with an aerosol holding chamber disposed therebetween that is of a size selected to hold a predetermined quantity of aerosol medication injected therein.
The device is characterized in that said chamber is constructed from at least two elements that engage each other telescopically and are movable relative to one another from a first, opened position to a second, closed position.
Description
2~3~3 .
The present invention relates to the field of medical devices and in particular provides an improved aerosol holding chamber for use with an aerosol inhaler device.
~.
As a treatment for many respiratory problems such as asthmatic conditions the prescribed treatment involves inhaling of medication which is delivered from an aerosol container. In order for a patient to conveniently inhale such a medication without the loss of excessive amounts of medication, aerosol holding chambers have been developed.
These consist of a tubular member one end of which is provided with a mouth piece through which a patent may inhale medication and the other end of which is provided with an opening which may be connected with an aerosol medication dispenser. The patient injects quantity of aerosol into the ~15 tubular member and breaths inwardly through the mouth piece, thereby inhaling the medication. The interior volume of the tubular member is selected to correspond with one dose of ~ medication. The aerosol holding chamber has proved to be a .~ ~ very effective and user friendly form of medication administering apparatus. It overcomes a significant drawback of aerosol medication, that a breath had to be timed with releasing of the medication from its dispensing apparatus, a disadvantage which is magnified by the fact that the user of the medication will usually be suffering from a respiratory ~25 ailment.
~ ~ "
-.~ ` 2~2~3~
A drawback associated with the use of an aerosol holding chamber is that it is quite large and bulky, usually being about 6" long and 1" to 1.5" in diameter. Moreover, since it is usually necessary for the user of an aerosol medication to carry his or her medication at all times, then using an aerosol chamber may become quite inconvenient.
In a broad aspect, the present invention relates to a device for use with an aerosol medication dispenser which ~ dispenses medication to be inhaled by a user thereof, said 3 10 device having a first end adapted to receive an aerosol medication dispenser and a second end adapted to serve as a ~ mouthpiece through which a user may inhale medication injected `~ into said device, said two ends communicating with an aerosol ~ holdinq chamber disposed therebetween that is of a size -~15 selected to hold a predetermined quantity of aerosol medication injected therein, characterized in that said chamber is constructed from at least two elements that engage each other telescopically and are movable relative to one another from a first, opened position to a second, closed `20 position.
~' The object of the present invention is to provide an aerosol holding chamber which may conveniently be collapsed .;, to a small enough size to be easily carried in the pocket or ~ in a handbag. ~ ~
--~25 `
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, .
In drawings which illustrate the present invention by way of example~
Figure l is a side view of an aerosol holding chamber according to the prior art:
, 5 Figure 2 is a cross-sectional view of an aerosol I holding chamber according to the present invention;
Figure 3 is a perspective view of an aerosol ~ holding chamber according to the present invention; and ! Figure 4 is an end view of the present invention.
Referring to the figures in general, it will be seen that the prior art aerosol holding chamber is a one piece device and is quite large, too large to be conveniently carried in, for instance, a trousers pocket. one end of the ~ device is provided with a mouthpiece l and the other end of .~15 the device is provided with an opening for the dispensing apparatus 2. A rubber O ring is provided inside the opening for the dispensing apparatus so as to provide a tight fit between the two. It will be noted that the rubber ring between the aerosol dispensing apparatus and the aerosol holding chamber is vented to prevent the formation of a vacuum ~; in the holding chamber when a patient breathes in medication , ~ . , i ~ ! ' which is held in the chamber. The aerosol holding chamber may :::
also be vented near the mouth piece thereof for the same purpose.
3:~ 3 ~ ~:
2~2~$~
~.
Referring now to Figures 2 and 3, it will be seen that the present invention provides an aerosol holding chamber which comprises several telescoping cylindrical sections.
When not in use, the sections may be telescoped into the ~
largest piece thereof which in the embodiment illustrated is the piece adjacent the mouthpiece, but may be the piece adjacent the opening for the aerosol dispensing apparatus.
The user merely pulls the telescoping tubing outwardly until the stops in each section engage in the rubber rings on the section connected therewith, at which time the holding chamber is in its operative position. The aerosol dispensing apparatus is then inserted into the end remote from the mouthpiece, the mouthpiece inserted into the user's mouth, and the aerosol is dispensed into the fully extended chamber and ~15 inhaled by the user. After the user has taken a sufficient ; dose of medication the aerosol dispensing apparatus is then `~
~; pulled of the end of the holding chamber and the holding ~;~
chamber is collapsed by pushing the ends towards one another.
i~ It will be noted from Figure 4 that the rubber .20 ring adjacent the aerosol dispensing apparatus receiving end of the device of the present invention is vented so that when the user filis the aerosol chàmber of the present invention with aerosol medication and then breathes in there is no tendency to create a vacuum in the holding chamber. ~ ;
~ 4 ::
:R ~ 2 0 ~ 8 ~ & ~
,.; . . ~
It is to be understood that the examples described above are not meant to limit the scope of the present invention. It is expected that numerous variants will be ~ obvious to the person skilled in the field of medication .1 5 delivery apparatus design, without any departure from the spirit of the present invention. The appended claims, ~j properly construed, form the only limitation upon the scope ¦ of the present invention.
~`~
:. ' '
The present invention relates to the field of medical devices and in particular provides an improved aerosol holding chamber for use with an aerosol inhaler device.
~.
As a treatment for many respiratory problems such as asthmatic conditions the prescribed treatment involves inhaling of medication which is delivered from an aerosol container. In order for a patient to conveniently inhale such a medication without the loss of excessive amounts of medication, aerosol holding chambers have been developed.
These consist of a tubular member one end of which is provided with a mouth piece through which a patent may inhale medication and the other end of which is provided with an opening which may be connected with an aerosol medication dispenser. The patient injects quantity of aerosol into the ~15 tubular member and breaths inwardly through the mouth piece, thereby inhaling the medication. The interior volume of the tubular member is selected to correspond with one dose of ~ medication. The aerosol holding chamber has proved to be a .~ ~ very effective and user friendly form of medication administering apparatus. It overcomes a significant drawback of aerosol medication, that a breath had to be timed with releasing of the medication from its dispensing apparatus, a disadvantage which is magnified by the fact that the user of the medication will usually be suffering from a respiratory ~25 ailment.
~ ~ "
-.~ ` 2~2~3~
A drawback associated with the use of an aerosol holding chamber is that it is quite large and bulky, usually being about 6" long and 1" to 1.5" in diameter. Moreover, since it is usually necessary for the user of an aerosol medication to carry his or her medication at all times, then using an aerosol chamber may become quite inconvenient.
In a broad aspect, the present invention relates to a device for use with an aerosol medication dispenser which ~ dispenses medication to be inhaled by a user thereof, said 3 10 device having a first end adapted to receive an aerosol medication dispenser and a second end adapted to serve as a ~ mouthpiece through which a user may inhale medication injected `~ into said device, said two ends communicating with an aerosol ~ holdinq chamber disposed therebetween that is of a size -~15 selected to hold a predetermined quantity of aerosol medication injected therein, characterized in that said chamber is constructed from at least two elements that engage each other telescopically and are movable relative to one another from a first, opened position to a second, closed `20 position.
~' The object of the present invention is to provide an aerosol holding chamber which may conveniently be collapsed .;, to a small enough size to be easily carried in the pocket or ~ in a handbag. ~ ~
--~25 `
i~
` 2 ~
: ~:
~ '~
` 2~2~3~
, .
In drawings which illustrate the present invention by way of example~
Figure l is a side view of an aerosol holding chamber according to the prior art:
, 5 Figure 2 is a cross-sectional view of an aerosol I holding chamber according to the present invention;
Figure 3 is a perspective view of an aerosol ~ holding chamber according to the present invention; and ! Figure 4 is an end view of the present invention.
Referring to the figures in general, it will be seen that the prior art aerosol holding chamber is a one piece device and is quite large, too large to be conveniently carried in, for instance, a trousers pocket. one end of the ~ device is provided with a mouthpiece l and the other end of .~15 the device is provided with an opening for the dispensing apparatus 2. A rubber O ring is provided inside the opening for the dispensing apparatus so as to provide a tight fit between the two. It will be noted that the rubber ring between the aerosol dispensing apparatus and the aerosol holding chamber is vented to prevent the formation of a vacuum ~; in the holding chamber when a patient breathes in medication , ~ . , i ~ ! ' which is held in the chamber. The aerosol holding chamber may :::
also be vented near the mouth piece thereof for the same purpose.
3:~ 3 ~ ~:
2~2~$~
~.
Referring now to Figures 2 and 3, it will be seen that the present invention provides an aerosol holding chamber which comprises several telescoping cylindrical sections.
When not in use, the sections may be telescoped into the ~
largest piece thereof which in the embodiment illustrated is the piece adjacent the mouthpiece, but may be the piece adjacent the opening for the aerosol dispensing apparatus.
The user merely pulls the telescoping tubing outwardly until the stops in each section engage in the rubber rings on the section connected therewith, at which time the holding chamber is in its operative position. The aerosol dispensing apparatus is then inserted into the end remote from the mouthpiece, the mouthpiece inserted into the user's mouth, and the aerosol is dispensed into the fully extended chamber and ~15 inhaled by the user. After the user has taken a sufficient ; dose of medication the aerosol dispensing apparatus is then `~
~; pulled of the end of the holding chamber and the holding ~;~
chamber is collapsed by pushing the ends towards one another.
i~ It will be noted from Figure 4 that the rubber .20 ring adjacent the aerosol dispensing apparatus receiving end of the device of the present invention is vented so that when the user filis the aerosol chàmber of the present invention with aerosol medication and then breathes in there is no tendency to create a vacuum in the holding chamber. ~ ;
~ 4 ::
:R ~ 2 0 ~ 8 ~ & ~
,.; . . ~
It is to be understood that the examples described above are not meant to limit the scope of the present invention. It is expected that numerous variants will be ~ obvious to the person skilled in the field of medication .1 5 delivery apparatus design, without any departure from the spirit of the present invention. The appended claims, ~j properly construed, form the only limitation upon the scope ¦ of the present invention.
~`~
:. ' '
Claims (6)
1. A device for use with an aerosol medication dispenser which dispenses medication to be inhaled by a user thereof, said device having a first end adapted to receive an aerosol medication dispenser and a second end adapted to serve as a mouthpiece through which a user may inhale medication injected into said device, said two ends communicating with an aerosol holding chamber disposed therebetween that is of a size selected to hold a predetermined quantity of aerosol medication injected therein, characterized in that said chamber is constructed from at least two elements that engage each other telescopically and are movable relative to one another from a first, opened position to a second, closed position.
2. A device for use with an aerosol medication dispenser as claimed in Claim 1, wherein between each said element is located a sealing ring, whereby when said elements are in said open position, said chamber is sealed about said ring.
3. A device for use with an aerosol medication dispenser as described in Claim 2, wherein said ring is substantially connected to a said element, and the next element, telescopically engaging same is provided with a stop portion to engage said ring when said chamber is in said open position.
4. A device for use with an aerosol medication dispenser as described in Claim 3, wherein the first of said elements is connected to said first end, and the last of said at least two elements is connected to said second end.
5. A device for use with an aerosol medication dispenser as described in Claim 4, wherein at least one element is provided between said first and said last elements.
6. A device for use with an aerosol medication dispenser as described in Claim 5, wherein said device is molded from plastic and said sealing rings are made of synthetic or natural rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2028363 CA2028363A1 (en) | 1990-10-23 | 1990-10-23 | Aerosol medication holding chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2028363 CA2028363A1 (en) | 1990-10-23 | 1990-10-23 | Aerosol medication holding chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2028363A1 true CA2028363A1 (en) | 1992-04-24 |
Family
ID=4146235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2028363 Abandoned CA2028363A1 (en) | 1990-10-23 | 1990-10-23 | Aerosol medication holding chamber |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2028363A1 (en) |
-
1990
- 1990-10-23 CA CA 2028363 patent/CA2028363A1/en not_active Abandoned
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Dead |