CA1230505A - Aerosol inhalation spirometer apparatus - Google Patents
Aerosol inhalation spirometer apparatusInfo
- Publication number
- CA1230505A CA1230505A CA000468791A CA468791A CA1230505A CA 1230505 A CA1230505 A CA 1230505A CA 000468791 A CA000468791 A CA 000468791A CA 468791 A CA468791 A CA 468791A CA 1230505 A CA1230505 A CA 1230505A
- Authority
- CA
- Canada
- Prior art keywords
- inhalation
- tube
- chamber
- aerosol
- spirometer
- 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
Links
- 239000000443 aerosol Substances 0.000 title claims abstract description 33
- 239000007921 spray Substances 0.000 claims abstract description 14
- 238000009825 accumulation Methods 0.000 claims description 6
- 210000004072 lung Anatomy 0.000 description 4
- 230000029058 respiratory gaseous exchange Effects 0.000 description 4
- 239000006199 nebulizer Substances 0.000 description 3
- 239000003814 drug Substances 0.000 description 2
- 229940079593 drug Drugs 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- ZPEZUAAEBBHXBT-WCCKRBBISA-N (2s)-2-amino-3-methylbutanoic acid;2-amino-3-methylbutanoic acid Chemical compound CC(C)C(N)C(O)=O.CC(C)[C@H](N)C(O)=O ZPEZUAAEBBHXBT-WCCKRBBISA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M15/00—Inhalators
- A61M15/0086—Inhalation chambers
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/08—Measuring devices for evaluating the respiratory organs
- A61B5/087—Measuring breath flow
- A61B5/0875—Measuring breath flow using means carried by the fluid stream, e.g. free-floating balls
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Veterinary Medicine (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Public Health (AREA)
- Pulmonology (AREA)
- Animal Behavior & Ethology (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Hematology (AREA)
- Anesthesiology (AREA)
- Physiology (AREA)
- Physics & Mathematics (AREA)
- Biophysics (AREA)
- Pathology (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
- Medicinal Preparation (AREA)
Abstract
ABSTRACT
An aerosol inhalation spirometer apparatus which receives an aerosol spray from an aerosol spray device, which accumulates the aerosol spray, and which provides for effective and efficient inhalation of an aerosol spray by a pateint is shown and described. The appara-tus further includes a spirometer which monitors inha-lation rate.
An aerosol inhalation spirometer apparatus which receives an aerosol spray from an aerosol spray device, which accumulates the aerosol spray, and which provides for effective and efficient inhalation of an aerosol spray by a pateint is shown and described. The appara-tus further includes a spirometer which monitors inha-lation rate.
Description
AEROSOL INHALATION SPIROMETER APPARATUS
:F3ACKGROUND OF_HE INVENTION
It has been found that in certain patients use of a typical aerosol inhaler is either inefficient or ineffective because of the patient's inability to completely breath in and distribute aerosol sprays evenly to the lungs. This may occur in patients who may not be able to adequately coordinate their inhala-tion with the release of the medication from the hand-held aerosol inhaler.
DESCRIPTION OF_ T~IE PRIOR ART
The United States Patent 4,210,155 entitled"Inspirational Inhalation Spirometer Apparatus" dis-closes an accumulator for use with an inspirational inhalation apparatus and also a spirometer which may be used to determine inhalation rate. In this apparatus the input to the inhalation chamber is a nebulizer assembly which creates a mist by passing a gas under pressure through a liquid contained in the nebulizer.
It is disclosed that the nebulizer requires approxi-mately 15 psi at the rate of 2 to 10 liters per minute.
This type of air or oxygen pressure is generally avail-able only in hospitals and obviously requires a sepa-rate pump apparatus or compressed gas cylinder and associated p~essure control valves.
13RIEF SUMM;~RY OF THE INVENTION
This invention is an apparatus for providing improved inhalation of aerosol sprays from a typical aerosol inhaler. In this invention, the aerosol in-haler is discharged into an accumulating chamber which will hold the spray until inhalation by the patient iscommenced. When inhalation is commenced, air flows from the accumulating chamber into an inhalation tube and a mouth piece to the patient's mouth. During inhalation, air is also allowed to pass into the inha-lation chamber by means of ports in the inhalation chamber. A first valve is provided in the breathing ,, .
~23~5~)5 tube which permits air to pass only from the inhalation chamber in~o the tube, hut which prevents air passing backwards from the tube and to the inhalation chamber.
A second valv~ is mounted on the inhalation tube for allowing exhaled air to pass outward through the tube and not into the inhalation chamber. Mounted also on the tube is a metering device or spirometer which measures the negative pressure produced by inhalation which is used to indicate sufficient inhalation is present for proper distribution of the aerosol spray into the lungs.
BRIEF DESCRIPTION OF THE ~RAWINGS
Figure 1 shows a patient holding the aerosol inhalation spirometer device while breathing in.
Figure 2 shows an exploded view of the aerosol inhalation spirometer of Figure 1.
Figure 3 shows a side view of the aerosol inhalation spirometer.
DETAILED DESCRIPTION OF T~E PREFERRED EMBODIMENT
Referring first to Figure 1 there is shown a patient using an aerosol inhalation spirometer 10 in accordance with this invention. The device includes an accumulating chamber 12 into which is inserted an aerosol spray from a typical aerosol inhaler 14. The ~5 aerosol inhaler is operated by the patient's right hand 16 in the manner required for the aerosol inhaler. The patient draws air in to his lungs by breathing in on mouth piece 180 During inhalation there is a slight negative pressure within the tube 20. The spirometer 22 is placed atop of the tube 20 so that it may be used to indicate the pressure by height of the float 66. The inhalation of the patient is a function of the pressure in tube 20.
In Figure 2 there is shown an exploded view of the apparatus generally depicted in Figure 1~ This view is one as would be seen looking down from the top except that the aerosol inhaler 14 is shown rotated 90 for ~2~
convenience, The aerosol inhaler of the type shown here includes a container 15 which holds the aerosol spray fluid. An adapter 30 is used to connect the aerosol inhaler 14 to the accumulating chamber 12. A
tube 32 on the accumulation chamber 12 receives the adapter 30.
The accumulation chamber 12 includes two half sections 34 and 36 which may be taken apart to clean the chamber. Clips 38 on chamber half 34 engage cut out slots in the rim 40 of the chamber half 36. The slots or openings 42 in the rim of 40 are made inten-tionally larger than the clips 38 and permit passage of air into the chamber 12 when the pressure in the cham-ber is less than that of the surrounding atmosphere.15 By controlling the size of the openings 42 7 the nega-tive pressure within the accumulating chamber 12 may be controlled. The output 44 of the chamber 12 is con-nected to the inhalation tube 20 by any convenient means such as a slightly tapered plastic tube 44 which engages an entry to 46. At the end of tube 44 there is placed a one-way valve 48 which permits air to pass from the accumulating chamber 12 and into -the inha-lation tube 20. This direction of air flow is indi-cate~ by the arrows in Figure 3.
In Figures 2 and 3 there is shown a mouth piece 50 which is at the end of the tube 20 and which provides easier use by the patient. The tube 20 also includes at its end opposite the mouth piece an exhaling port 52. A second one-way valve 54 is placed in the end of the tube 20 to allow air only to pass in the direction indicated by the arrows in Figure 2. This valve 54 is also shown in Figure 1. Valve 54 like valve 48 may be any convenient valve such as a diaphragm valve which permits low pressure air flow at the inhalation or exhalation pressures to be controlled in the desired directions.
~23~ 5 Mounted on top of the inhalation tube 20 is the incentive indicator 22. In the preferred embodiment, the indicator consists of two parallel tubes 60 an~ 62.
The inside tube 62 is in direct communication with the interior of inhalation tube 20. The bottom of the exterior tube 60 is in direct communication with the atmosphere by any suitable por~ 64 located at the bot-kom of tube 60 in the region of the tube connection to the inhalation tube 20. The tube 60 also includes a plug or cap at its top which seals the top to the atmosphere. Surrounding the tube 62 and within the tube 60 there is placed a float 66 which is free to ride up and down along tube 62 and within tube 60.
When air is inhaled a negative pressure is produced within the tube 20 which causes the float indicator 66 to rise up along the tube 62 as shown in Figure 3. The indicator 66 on the spirometer 22 en-ables the patient to visually determine that his rate of inhalation is sufficient to draw the ~apors or aerosol spray contained in the chamber 12 into his lungs at the proper rate.
The valves 48 and 54 in the preferred embodiment are preferably rubber valve membrane members which extend across the tube 20 and the tube 24 respectfully.
25The aerosol inhalation and spirometer apparatus is used by holding the spirometer tuhe 22 in the upright position as shown in Figure 1. The patient places the mouth piece above his tongue and between his teeth with the lips closed tightly in order to draw air in through the tube 20. If there is difficulty with nasel breath-ing, a nose clip may be placed upon the nose of thepatient or else of the nose merely held. Next the aerosol inhaler is activated to allow the medication to enter the accumulating cham~er 12. Next the patient must take a slow, deep breath. The patient should inhale only hard enough to raise the float 66 to the top of the incentive indicator or spirometer 22. The 3~ S
patient should keep the float up as long as possible and then hold his breath for approximatelv 5 seconds before exhaling.
The patient then exhales allowing the air to pass through the chamber 20 and out through valve 54 and to the atomosphere. It should be noted that during exha-lation, the valve 48 closes preventing exhaled air from reentering the accumulation chamber 12. The process of inhalation and exhalation should be repeated 4 or more times to ensure that all of the mediation which was originally placed in the accumulation chamber 12 has been inhaled.
It is to be understood that while this form of the invention has been illustrated and described, it is not to be limited to this specific form or arrangement of parts as d~scribed herein and shown except insofar as such limitations are included in the following claims.
:F3ACKGROUND OF_HE INVENTION
It has been found that in certain patients use of a typical aerosol inhaler is either inefficient or ineffective because of the patient's inability to completely breath in and distribute aerosol sprays evenly to the lungs. This may occur in patients who may not be able to adequately coordinate their inhala-tion with the release of the medication from the hand-held aerosol inhaler.
DESCRIPTION OF_ T~IE PRIOR ART
The United States Patent 4,210,155 entitled"Inspirational Inhalation Spirometer Apparatus" dis-closes an accumulator for use with an inspirational inhalation apparatus and also a spirometer which may be used to determine inhalation rate. In this apparatus the input to the inhalation chamber is a nebulizer assembly which creates a mist by passing a gas under pressure through a liquid contained in the nebulizer.
It is disclosed that the nebulizer requires approxi-mately 15 psi at the rate of 2 to 10 liters per minute.
This type of air or oxygen pressure is generally avail-able only in hospitals and obviously requires a sepa-rate pump apparatus or compressed gas cylinder and associated p~essure control valves.
13RIEF SUMM;~RY OF THE INVENTION
This invention is an apparatus for providing improved inhalation of aerosol sprays from a typical aerosol inhaler. In this invention, the aerosol in-haler is discharged into an accumulating chamber which will hold the spray until inhalation by the patient iscommenced. When inhalation is commenced, air flows from the accumulating chamber into an inhalation tube and a mouth piece to the patient's mouth. During inhalation, air is also allowed to pass into the inha-lation chamber by means of ports in the inhalation chamber. A first valve is provided in the breathing ,, .
~23~5~)5 tube which permits air to pass only from the inhalation chamber in~o the tube, hut which prevents air passing backwards from the tube and to the inhalation chamber.
A second valv~ is mounted on the inhalation tube for allowing exhaled air to pass outward through the tube and not into the inhalation chamber. Mounted also on the tube is a metering device or spirometer which measures the negative pressure produced by inhalation which is used to indicate sufficient inhalation is present for proper distribution of the aerosol spray into the lungs.
BRIEF DESCRIPTION OF THE ~RAWINGS
Figure 1 shows a patient holding the aerosol inhalation spirometer device while breathing in.
Figure 2 shows an exploded view of the aerosol inhalation spirometer of Figure 1.
Figure 3 shows a side view of the aerosol inhalation spirometer.
DETAILED DESCRIPTION OF T~E PREFERRED EMBODIMENT
Referring first to Figure 1 there is shown a patient using an aerosol inhalation spirometer 10 in accordance with this invention. The device includes an accumulating chamber 12 into which is inserted an aerosol spray from a typical aerosol inhaler 14. The ~5 aerosol inhaler is operated by the patient's right hand 16 in the manner required for the aerosol inhaler. The patient draws air in to his lungs by breathing in on mouth piece 180 During inhalation there is a slight negative pressure within the tube 20. The spirometer 22 is placed atop of the tube 20 so that it may be used to indicate the pressure by height of the float 66. The inhalation of the patient is a function of the pressure in tube 20.
In Figure 2 there is shown an exploded view of the apparatus generally depicted in Figure 1~ This view is one as would be seen looking down from the top except that the aerosol inhaler 14 is shown rotated 90 for ~2~
convenience, The aerosol inhaler of the type shown here includes a container 15 which holds the aerosol spray fluid. An adapter 30 is used to connect the aerosol inhaler 14 to the accumulating chamber 12. A
tube 32 on the accumulation chamber 12 receives the adapter 30.
The accumulation chamber 12 includes two half sections 34 and 36 which may be taken apart to clean the chamber. Clips 38 on chamber half 34 engage cut out slots in the rim 40 of the chamber half 36. The slots or openings 42 in the rim of 40 are made inten-tionally larger than the clips 38 and permit passage of air into the chamber 12 when the pressure in the cham-ber is less than that of the surrounding atmosphere.15 By controlling the size of the openings 42 7 the nega-tive pressure within the accumulating chamber 12 may be controlled. The output 44 of the chamber 12 is con-nected to the inhalation tube 20 by any convenient means such as a slightly tapered plastic tube 44 which engages an entry to 46. At the end of tube 44 there is placed a one-way valve 48 which permits air to pass from the accumulating chamber 12 and into -the inha-lation tube 20. This direction of air flow is indi-cate~ by the arrows in Figure 3.
In Figures 2 and 3 there is shown a mouth piece 50 which is at the end of the tube 20 and which provides easier use by the patient. The tube 20 also includes at its end opposite the mouth piece an exhaling port 52. A second one-way valve 54 is placed in the end of the tube 20 to allow air only to pass in the direction indicated by the arrows in Figure 2. This valve 54 is also shown in Figure 1. Valve 54 like valve 48 may be any convenient valve such as a diaphragm valve which permits low pressure air flow at the inhalation or exhalation pressures to be controlled in the desired directions.
~23~ 5 Mounted on top of the inhalation tube 20 is the incentive indicator 22. In the preferred embodiment, the indicator consists of two parallel tubes 60 an~ 62.
The inside tube 62 is in direct communication with the interior of inhalation tube 20. The bottom of the exterior tube 60 is in direct communication with the atmosphere by any suitable por~ 64 located at the bot-kom of tube 60 in the region of the tube connection to the inhalation tube 20. The tube 60 also includes a plug or cap at its top which seals the top to the atmosphere. Surrounding the tube 62 and within the tube 60 there is placed a float 66 which is free to ride up and down along tube 62 and within tube 60.
When air is inhaled a negative pressure is produced within the tube 20 which causes the float indicator 66 to rise up along the tube 62 as shown in Figure 3. The indicator 66 on the spirometer 22 en-ables the patient to visually determine that his rate of inhalation is sufficient to draw the ~apors or aerosol spray contained in the chamber 12 into his lungs at the proper rate.
The valves 48 and 54 in the preferred embodiment are preferably rubber valve membrane members which extend across the tube 20 and the tube 24 respectfully.
25The aerosol inhalation and spirometer apparatus is used by holding the spirometer tuhe 22 in the upright position as shown in Figure 1. The patient places the mouth piece above his tongue and between his teeth with the lips closed tightly in order to draw air in through the tube 20. If there is difficulty with nasel breath-ing, a nose clip may be placed upon the nose of thepatient or else of the nose merely held. Next the aerosol inhaler is activated to allow the medication to enter the accumulating cham~er 12. Next the patient must take a slow, deep breath. The patient should inhale only hard enough to raise the float 66 to the top of the incentive indicator or spirometer 22. The 3~ S
patient should keep the float up as long as possible and then hold his breath for approximatelv 5 seconds before exhaling.
The patient then exhales allowing the air to pass through the chamber 20 and out through valve 54 and to the atomosphere. It should be noted that during exha-lation, the valve 48 closes preventing exhaled air from reentering the accumulation chamber 12. The process of inhalation and exhalation should be repeated 4 or more times to ensure that all of the mediation which was originally placed in the accumulation chamber 12 has been inhaled.
It is to be understood that while this form of the invention has been illustrated and described, it is not to be limited to this specific form or arrangement of parts as d~scribed herein and shown except insofar as such limitations are included in the following claims.
Claims (2)
1. An aerosol inhalation spirometer apparatus comprising in combination:
an accumulation chamber 12 for holding an aerosol spray;
an aerosol spray inhaler means connected to said accumulating chamber for inserting an aerosol spray into said accumulation chamber;
means connecting said chamber to an inhalation tube, said means including:
a first one-way valve means, and a connecting tube;
means connected to said inhalation tube for indicating the pressure within said inhalation tube; and whereby said pressure in said inhalation tube indicates the rate of inhalation.
an accumulation chamber 12 for holding an aerosol spray;
an aerosol spray inhaler means connected to said accumulating chamber for inserting an aerosol spray into said accumulation chamber;
means connecting said chamber to an inhalation tube, said means including:
a first one-way valve means, and a connecting tube;
means connected to said inhalation tube for indicating the pressure within said inhalation tube; and whereby said pressure in said inhalation tube indicates the rate of inhalation.
2. The apparatus of claim 1 further including a second one-way valve means on said inhalation tube for preventing exhaled air from flowing into said accumu-lating chamber.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US55688683A | 1983-12-01 | 1983-12-01 | |
| US556,886 | 1990-07-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1230505A true CA1230505A (en) | 1987-12-22 |
Family
ID=24223228
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000468791A Expired CA1230505A (en) | 1983-12-01 | 1984-11-28 | Aerosol inhalation spirometer apparatus |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JPS6092504U (en) |
| CA (1) | CA1230505A (en) |
| DE (1) | DE8400001U1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5839430A (en) * | 1996-04-26 | 1998-11-24 | Cama; Joseph | Combination inhaler and peak flow rate meter |
| EP3194033A4 (en) * | 2014-09-19 | 2018-05-30 | Aerovu Technologies, Inc. | Spacer device with flow rate spirometer |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3537507C2 (en) * | 1985-10-22 | 1993-11-25 | Salvia Lifetec Gmbh & Co Kg | Device for supportive intermittent pressure ventilation and aerosol therapy |
| CO2021005519A1 (en) * | 2021-04-28 | 2021-05-10 | Fund Valle De Lili | I inhale flow chamber |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4173977A (en) * | 1977-03-25 | 1979-11-13 | Cavitron Corporation | Aerosol interface |
| JPS5578307U (en) * | 1978-11-28 | 1980-05-30 | ||
| JPS5645612A (en) * | 1979-09-25 | 1981-04-25 | Akira Tamai | Foot warmer cover used in warming shoulder lower portion |
-
1984
- 1984-01-02 DE DE19848400001U patent/DE8400001U1/en not_active Expired
- 1984-01-05 JP JP1984000331U patent/JPS6092504U/en active Granted
- 1984-11-28 CA CA000468791A patent/CA1230505A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5839430A (en) * | 1996-04-26 | 1998-11-24 | Cama; Joseph | Combination inhaler and peak flow rate meter |
| EP3194033A4 (en) * | 2014-09-19 | 2018-05-30 | Aerovu Technologies, Inc. | Spacer device with flow rate spirometer |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0211048Y2 (en) | 1990-03-19 |
| JPS6092504U (en) | 1985-06-24 |
| DE8400001U1 (en) | 1984-04-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |